Skocz do pozycji: 1.

Tytuł:

Technologies for low cost small satellites

Autorzy:

Kurek, K.

Powiązania:

https://bibliotekanauki.pl/articles/307636.pdf

Data publikacji:

2007

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy

Tematy:

small satellites
satellite systems
space technology

Opis:

Paper presents short description of satellite struc- ture and characterization of its subsystems. Review of tech- nologies used in small satellite missions is presented, consid- ering possible solutions in low cost projects. Three common solutions: the use of commercial off the shelf (COTS) compo- nents, miniaturization, remote testing and integration of sub- systems can be used to significantly reduce cost of the satellite.

Źródło:

Journal of Telecommunications and Information Technology; 2007, 1; 45-49
1509-4553
1899-8852

Pojawia się w:

Journal of Telecommunications and Information Technology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 2.

Tytuł:

Low cost alternative fuel from biomass

Autorzy:

Zeru, D.
Gebregergis, H.
Tilahun, M.
Sahu, O.

Powiązania:

https://bibliotekanauki.pl/articles/11526.pdf

Data publikacji:

2015

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Opis:

A major challenge for next decades is development of competitive renewable energy sources, highly needed to compensate fossil fuels reserves and reduce greenhouse gas emissions. Among different possibilities, which are currently under investigation, there is the exploitation of unicellular algae for production of biofuels and biodiesel in particular. Microalgae have the ability of accumulating large amount of lipids within their cells which can be exploited as feedstock for the production of biodiesel. The lipid content of different species of microalgae can range from 30%-70% of their dry weight. In this project a microalgae with lipid content of 60.095% was used. This means that 26gms of oil was obtained from 42gms of microalgae sample from which 17.624gm of biodiesel (FAME) was found at the end of trans-esterification. Algae biofuels avoid some of the previous drawbacks associated with crop-based biofuels as the algae do not compete with food crops. The favorable growing conditions found in many developing countries has led to a great deal of speculation about their potentials for reducing oil imports, stimulating rural economies, and even tackling hunger and poverty. Strong research efforts are however still needed to fulfill this potential and optimize cultivation systems and biomass harvesting.

Źródło:

International Letters of Natural Sciences; 2015, 05
2300-9675

Pojawia się w:

International Letters of Natural Sciences

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 3.

Tytuł:

Development of Low-Cost Photodynamic Therapy Device

Autorzy:

Momchilov, N.
Bliznakova, I.
Borisova, E.
Troyanova, P.
Avramov, L.

Powiązania:

https://bibliotekanauki.pl/articles/2047897.pdf

Data publikacji:

2007-11

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

42.72.Bj
87.64.kv
87.19.xj

Opis:

Photodiagnosis and photodynamic therapy of non-melanoma skin cancers using delta-aminolevulinic acid/protoporphyrin IX (5-ALA/PpIX) give a combined application with broadest dissemination in the current clinical practice. The problems with using of lasers as light sources are the expenses associated with the operation of these types of installations. This is why we test the capability of cheaper sources - light-emitting diodes at 405 nm for fluorescence excitation of PpIX and 635 nm for photodynamic action initiation. A LED matrix is developed in our laboratory using two types of LEDs and a combined photodiagnosis/photodynamic theory device applicable for clinical practice is built. Geometrically matrix is formed in such way that power density at 635 nm is about 40 mW/cm$\text{}^{2}$, which allow to reach treatment doses for a 15-20 min irradiation depending of the lesion size in the focus of the system. The therapeutic mode of system developed can be used also with some other photosensitizers from the porphyrins derivatives family.

Źródło:

Acta Physica Polonica A; 2007, 112, 5; 1125-1130
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 4.

Tytuł:

Low cost integrated navigation system for unmanned vessel

Autorzy:

Yang, C.
Wang, Q.

Powiązania:

https://bibliotekanauki.pl/articles/259693.pdf

Data publikacji:

2017

Wydawca:

Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa

Tematy:

low cost
MEMS
inertial navigation
integrated navigation

Opis:

Large errors of low-cost MEMS inertial measurement unit (MIMU) lead to huge navigation errors, even wrong navigation information. An integrated navigation system for unmanned vessel is proposed. It consists of a low-cost MIMU and Doppler velocity sonar (DVS). This paper presents an integrated navigation method, to improve the performance of navigation system. The integrated navigation system is tested using simulation and semi-physical simulation experiments, whose results show that attitude, velocity and position accuracy has improved awfully, giving exactly accurate navigation results. By means of the combination of low-cost MIMU and DVS, the proposed system is able to overcome fast drift problems of the low cost IMU.

Źródło:

Polish Maritime Research; 2017, S 3; 110-115
1233-2585

Pojawia się w:

Polish Maritime Research

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 5.

Tytuł:

A Low-cost Multicomputer for solving the RCPSP

Autorzy:

Pawiński, G.
Sapiecha, K.

Powiązania:

https://bibliotekanauki.pl/articles/106309.pdf

Data publikacji:

2016

Wydawca:

Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej

Tematy:

multicomputer
RCPSP

Opis:

In the paper it is shown that time necessary to solve the NP-hard Resource-Constrained Project Scheduling Problem (RCPSP) could be considerably reduced using a low-cost multicomputer. We consider an extension of the problem when resources are only partially available and a deadline is given but the cost of the project should be minimized. In such a case nding an acceptable solution (optimal or even semi-optimal) is computationally very hard. To reduce this complexity a distributed processing model of a metaheuristic algorithm, previously adapted by us for working with human resources and the CCPM method, was developed. Then, a new implementation of the model on a low-cost multicomputer built from PCs connected through a local network was designed and compared with regular implementation of the model on a cluster. Furthermore, to examine communication costs, an implementation of the model on a single multi-core PC was tested, too. The comparative studies proved that the implementation is as ecient as on more expensive cluster. Moreover, it has balanced load and scales well.

Źródło:

Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2016, 16, 1; 50-61
1732-1360
2083-3628

Pojawia się w:

Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 6.

Tytuł:

Fly me: financial mathematics and low-cost airlines

Autorzy:

Piwarska, Karina
Kulesza, Kamil

Powiązania:

https://bibliotekanauki.pl/articles/748386.pdf

Data publikacji:

2008

Wydawca:

Polskie Towarzystwo Matematyczne

Tematy:

91B28

Opis:

Rynki instrumentów pochodnych należą obecnie do jednych z najciekawszych obszarów badań w matematyce finansowej. Są też obszarem, gdzie spotykają się teoria i praktyka, tak ważne w rzetelnie uprawianej matematyce stosowanej. Zachodzi tam ożywiona wymiana idei pomiędzy matematykami a ekonomistami, choć de facto ma ona charakter bardziej interdyscyplinarny, angażując np. informatyków i fizyków. Równolegle dynamiczny rozwój rynków i pojawianie się coraz szerszej gamy instrumentów pochodnych pozwalają na włączanie do tego zbioru coraz to nowych obiektów. W naszej pracy pokazujemy, że skoro zakładać się można „o wszystko”, a instrumenty pochodne są rodzajem giełdowego zakładu, to bilety tanich linii lotniczych można opisać jako specyficzne opcje. Uwzględniając rzeczywiste warunki rynkowe i ograniczenia narzucone w regulaminach tanich przewoźników, przedstawimy alternatywny dla już istniejących sposób podejścia do wyceny takich instrumentów oraz metody konstrukcji i optymalizacji portfela złożonego z biletów, który może mieć zastosowanie zarówno do celów spekulacyjnych, jak i korporacyjnych.
The derivatives are financial instruments whose value changes in response to the changes in underlying variables. Originally, they were based on commodities and used to reduce risk from varying prices. This strategy is often called hedging. However as financial markets have become more complex it is more and more difficult to distinguish between old fashioned hedging and speculation. At present the derivatives’ markets are one of the most interestingfie lds of research in financial mathematics. They are the point where theory and practice meet, an important factor in good applied mathematics. As a result a vivid exchange of ideas takes place between mathematicians and researchers from huge variety of fields like economics, physics and computer science. In the same time the markets are constantly evolvinga nd new financial instruments are created every day. Nowadays, derivatives are beingc onstructed not only for assets such as commodities, equities , bonds, interest rates, exchange rates, but also various indexes or even weather. In order to make a transaction a buyer and a seller are needed. In this respect a financial instrument can be understood as a bet between two parties, each assumingtha t the market will move the way that they expect. In old times derivatives were mainly used to managed risk, for instance by securing fixed price for some asset in the future. One of the types of derivatives are options that provide the right, but not the obligation, to engage in a future transaction on some fixed conditions. The transaction as such does not need to concern assets or securities, for instance the option can be exercise on certain services. In the paper we show that low-cost airlines’ tickets can be described as an option contract. While it is temptingto plug-in our description into known models for option valuation, we choose more practice oriented approach. We take into account the real life constrains and airlines’ regulations we present a realistic model for option valuation. In such a framework we show that, in principle, an arbitrage is possible. We conclude the paper with remarks on buildingan d optimizingp ortfolio of such assets, having in mind speculation/trading as well as corporate hedging.

Źródło:

Mathematica Applicanda; 2008, 36, 50/09
1730-2668
2299-4009

Pojawia się w:

Mathematica Applicanda

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 7.

Tytuł:

Low-Cost Data Acquisition Unit for Flight Tests

Autorzy:

Morawski, Błażej
Głowacki, Dominik
Głowacka, Anna

Powiązania:

https://bibliotekanauki.pl/articles/98014.pdf

Data publikacji:

2019

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Lotnictwa

Tematy:

helicopter flight test
LabVIEW
Arduino

Opis:

The purpose of this paper is to present the design of a data recorder for flight tests of a full-scale aircraft and an UAV. The recorder is built based on the Arduino microprocessor platform and LabVIEW development environment. The data recorder will be used mainly for helicopter flight tests.

Źródło:

Fatigue of Aircraft Structures; 2019, 11; 121-130
2081-7738
2300-7591

Pojawia się w:

Fatigue of Aircraft Structures

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 8.

Tytuł:

Low-Cost Dynamic Constraint Checking for the JVM

Autorzy:

Grzanek, K.

Powiązania:

https://bibliotekanauki.pl/articles/108744.pdf

Data publikacji:

2016

Wydawca:

Społeczna Akademia Nauk w Łodzi

Tematy:

formal software verification
software quality
dynamic type-checking
functional programming
category theory
Clojure

Opis:

Using formal methods for software verification slowly becomes a standard in the industry. Overall it is a good idea to integrate as many checks as possible with the programming language. This is a major cause of the apparent success of strong typing in software, either performed on the compile time or dynamically, on runtime. Unfortunately, only some of the properties of software may be expressed in the type system of event the most sophisticated programming languages. Many of them must be performed dynamically. This paper presents a flexible library for the dynamically typed, functional programming language running in the JVM environment. This library offers its users a close to zero run-time overhead and strong mathematical background in category theory.

Źródło:

Journal of Applied Computer Science Methods; 2016, 8 No. 2; 115-136
1689-9636

Pojawia się w:

Journal of Applied Computer Science Methods

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 9.

Tytuł:

Low-cost Monitoring System of a Sitting Posture

Autorzy:

Sieniawski, M.
Dimitrova-Grekov, T.
Klimowicz, A.

Powiązania:

https://bibliotekanauki.pl/articles/114379.pdf

Data publikacji:

2018

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

sitting position monitoring
RaspberryPi
graphical user interface
database

Opis:

The article presents a description of sitting posture monitoring system, built on Raspberry_Pi_3b, Tact Switch buttons, a prototype board and a rubber mat. RaspberryPi connected to the sensors communicated with a personal computer. This allows on the one hand to immediately inform the seated about the appearance of no symmetry of the position on the chair and managing the time of sitting and breaks on the other. The proposed system ensures identification of the degree of incorrect seating during work and gives the opportunity to improve the user's posture, which affects many topics related to health and work efficiency. System possesses a graphical user interface. During system operation, monitoring data is collected and can be used for further research towards an optimal impact on the user to get rid of the faulty sitting habits.

Źródło:

Measurement Automation Monitoring; 2018, 64, 1; 11-13
2450-2855

Pojawia się w:

Measurement Automation Monitoring

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 10.

Tytuł:

LOCAAS [Low-Cost Autonomous Attack System] dla Predatora.

Powiązania:

Aklot 2002, nr 3, s. 25-26

Data publikacji:

2002

Tematy:

LOCAAS (pocisk rakietowy) budowa i konstrukcje Stany Zjednoczone
Samoloty bezzałogowe uzbrojenie system Stany Zjednoczone
Pociski rakietowe kierowane klasy powietrze-ziemia budowa i konstrukcje Stany Zjednoczone

Opis:

Oprac. na podst. "Jane's Defense Weekly". --- 2002, 27 II; "AeroWorldNet". --- 2002, 4 III.

Dostawca treści:

Bibliografia CBW

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 11.

Tytuł:

Low-cost evoked potentials detection for brain computer-interfaces

Autorzy:

Jukiewicz, M.
Cysewska-Sobusiak, A.

Powiązania:

https://bibliotekanauki.pl/articles/97604.pdf

Data publikacji:

2015

Wydawca:

Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej

Tematy:

brain-computer interface
detection of evoked potentials
EEG
signal processing
MATLAB

Opis:

Evoked potentials are one of the brain's electrical activity types. They appear on the human scalp as a result of a registration of an external stimulus (e.g. an appearance or a change of a sound, a flash of light or an image). Generally, they are used in medical diagnosis, but they also may be used in brain-computer interfaces. In this chapter a laboratory set for the acquisition and analysis of evoked potentials is described. The main part of this set is a photostimulator consisting of sixteen LEDs and the ATmega 328 microcontroller. The software created by the authors allows for: connection between EEG device, stimulator and computer, input stimulus control, output signal filtering and its classification. The presented set may support a process of brain-computer interface design.

Źródło:

Computer Applications in Electrical Engineering; 2015, 13; 102-110
1508-4248

Pojawia się w:

Computer Applications in Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 12.

Tytuł:

Particle swarm optimization algorithm based low cost magnetometer calibration

Autorzy:

Ali, A.
Siddharth, S.
Syed, Z.
El-Sheimy, N.

Powiązania:

https://bibliotekanauki.pl/articles/129567.pdf

Data publikacji:

2011

Wydawca:

Stowarzyszenie Geodetów Polskich

Tematy:

artificial intelligence
systems
measurement
navigation
algorithm
sensor
sztuczna inteligencja
systemy
pomiar
nawigacja
algorytm

Opis:

Inertial Navigation Systems (INS) consist of accelerometers, gyroscopes and a microprocessor provide inertial digital data from which position and orientation is obtained by integrating the specific forces and rotation rates. In addition to the accelerometers and gyroscopes, magnetometers can be used to derive the absolute user heading based on Earth’s magnetic field. Unfortunately, the measurements of the magnetic field obtained with low cost sensors are corrupted by several errors including manufacturing defects and external electro-magnetic fields. Consequently, proper calibration of the magnetometer is required to achieve high accuracy heading measurements. In this paper, a Particle Swarm Optimization (PSO) based calibration algorithm is presented to estimate the values of the bias and scale factor of low cost magnetometer. The main advantage of this technique is the use of the artificial intelligence which does not need any error modeling or awareness of the nonlinearity. The estimated bias and scale factor errors from the proposed algorithm improve the heading accuracy and the results are also statistically significant. Also, it can help in the development of the Pedestrian Navigation Devices (PNDs) when combined with the INS and GPS/Wi-Fi especially in the indoor environments.

Źródło:

Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2011, 22; 9-23
2083-2214
2391-9477

Pojawia się w:

Archiwum Fotogrametrii, Kartografii i Teledetekcji

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 13.

Tytuł:

NOX-reduction on HD-vehicles-low cost quality check

Autorzy:

Czerwinski, J.
Zimmerli, Y.
Mayer, A.
Heeb, N.
Berger, H.
D‘Urbano, G.

Powiązania:

https://bibliotekanauki.pl/articles/246300.pdf

Data publikacji:

2013

Wydawca:

Instytut Techniczny Wojsk Lotniczych

Tematy:

Diesel particle filter
regeneration of DPF
non-legislated emissions
selective catalytic reduction SCR
NOx-reduction
SCR-quality testing
on vehicle testing

Opis:

The NOx reduction of recent HD-vehicle is performed mostly by means of the selective catalytic reduction SCR. There are some manufactures and some applications of SCR as retrofit systems (mostly for the low emission zones LEZ and in combination with a DPF). In charge of Swiss authorities AFHB investigated several SCR-systems, or (DPF+SCR)-systems on HD-vehicles and proposed a simplified quality test procedure of those systems. This procedure can especially be useful for the admission of retrofit systems but it can also be helpful for the quality check of OEM-systems. In the present paper the test procedures will be described and some examples of specific results will be presented. As general conclusions it can be stated: – the foundations for the quality verification procedures of SCR-systems are established, – the SCR-systems are not active at lower temperatures < 200°C, – SCR-testing on vehicle is a simple & low-cost tool for quality check, – the overall average NOx reduction rate depends on the operating profile of the vehicle – for low-load, for cold operation and for interrupted operation (HEV) there are lower NOx reduction efficiencies.

Źródło:

Journal of KONES; 2013, 20, 2; 61-68
1231-4005
2354-0133

Pojawia się w:

Journal of KONES

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 14.

Tytuł:

A low-cost system for supporting drivers in traffic jams

Autorzy:

Hołubowski, Waldemar
Frankiewicz, Ryszard
Kusiński, Sławomir
Sikora, Andrzej
Zielonka, Adam

Powiązania:

https://bibliotekanauki.pl/articles/27314059.pdf

Data publikacji:

2023

Wydawca:

Politechnika Śląska. Wydawnictwo Politechniki Śląskiej

Tematy:

IoT
distance sensor
low cost system
czujnik odległości
system niskokosztowy

Opis:

Cases of heavy traffic congestion (commonly referred to as traffic jams) have negative influences on the economy, public health, and social life. This makes it important to assist drivers in these situations with Internet of Things (IoT) systems. The aim of this article is to present a low-cost device that supports driving in traffic jams. The system, which is based on data from a laser sensor with a range of up to 40 m, controls the distances to vehicles in front of and behind a moving car. Through audio and video signals, it warns the driver whether the vehicle in front of or behind the equipped vehicle is too close. This allows the driver to control the distance and avoid minor collisions.

Źródło:

Transport Problems; 2023, 18, 1; 103--115
1896-0596
2300-861X

Pojawia się w:

Transport Problems

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 15.

Tytuł:

Low-cost IR system for thermal characterization of electronic devices

Autorzy:

Kopeć, M.
Więcek, B.

Powiązania:

https://bibliotekanauki.pl/articles/114060.pdf

Data publikacji:

2018

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

thermal impedance
Foster network
thermal time constants
temperature measurement

Opis:

In this article, a Low-cost measurement Infra-Red (IR) system for dynamic thermal testing of electronic devices is described. The element is powered by a step-function current and simultaneously temperature is measured by a fast single-detector IR head. The thermal impedance Zth(jω) is calculated using the Laplace transform and the Foster network is to get thermal time constants distribution.

Źródło:

Measurement Automation Monitoring; 2018, 64, 4; 103-107
2450-2855

Pojawia się w:

Measurement Automation Monitoring

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 16.

Tytuł:

Calibration low-cost cameras with wide-angle lenses for measurements

Autorzy:

Wierzbicki, D.

Powiązania:

https://bibliotekanauki.pl/articles/384304.pdf

Data publikacji:

2018

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

sensors
measurements
camera calibration
videos
accuracy
czujnik
pomiary
kalibracja kamery
filmy video
precyzja

Opis:

So far too many examinations concerning the possibility of the application action cameras weren’t conducted in UAV photogrammetric studies. However in the recent time development of the action cameras production technology he let receive sensors which are light, userfriendly, and most importantly can gain images and video sequences of high resolution. The essential meaning has taking into account the camera’s influencing factors in UAV photogrammetry. Due to the fact that the action cameras are non-metric cameras the significant influence on the quality of photogrammetric studies has a stability internal orientation of elements of such cameras. Within the framework of carried out research calibration of five GoPro Hero 4 Black. The calibration of cameras was carried out on different calibration tests in the GML Camera Calibration Toolbox and Agisoft Lens software. Different calibration setups and processing are presented and discussed in this article. Additionally a repetitiveness of achieved results of the calibration was examined in five GoPro cameras Hero 4 Black. Dedicated calibration templates in the form of chessboards were used to the calibration. As a part of the research a comparative analysis of the results have been done. Based on performed examinations a repetitiveness of determined internal orientation elements was checked under different video acquisition modes.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2018, 12, 2; 45-51
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 17.

Tytuł:

Long range measurements using a contactless low cost optical sensor

Autorzy:

Krelling, P C L
Gonzalez-Jorge, H.
Armesto, J.
Arias, P.

Powiązania:

https://bibliotekanauki.pl/articles/174034.pdf

Data publikacji:

2013

Wydawca:

Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej

Tematy:

laser scanning
accuracy
optical sensor

Opis:

Length measurement is very common in many industrial applications and there is a number of instrumentation involved, mainly dependent on the range and accuracy requirements. In this work, a contactless optical measurement unit is developed. It is based on a mouse sensor and an external laser source. The system is calibrated using an optical board and an electronic distance measuring system. Accuracy and precision of the system is evaluated using the reference data from a total station. Values of 1 mm and 0.3 mm are respectively obtained. Length range during the experiment is 8.5 m. The data of the optical measurement unit are compared with those obtained from a commonly used wheel encoder. Results from the optical sensor of the mouse improve the encoder data.

Źródło:

Optica Applicata; 2013, 43, 3; 435-440
0078-5466
1899-7015

Pojawia się w:

Optica Applicata

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 18.

Tytuł:

Fighting Volume Crime : an Intelligent, Scalable, and Low Cost Approach

Autorzy:

Arraiza, J.
Aginako, N.
Kioumourtzis, S.
Leventakis, G.
Stavropoulos, G.
Tzovaras, D.
Zotos, N.
Sideris, A.
Charalambous, E.
Koutras, N.

Powiązania:

https://bibliotekanauki.pl/articles/2069272.pdf

Data publikacji:

2015

Wydawca:

Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności

Tematy:

volume crime
petty crime
surveillance systems

Opis:

Volume Crimes (aka petty crimes) take place on a daily basis affecting citizens, local communities, as well as business and infrastructure owners. In this paper, we present a novel intelligent surveillance solution (P-REACT) that integrates video and audio analytics both on-site (using an embedded platform connected to local sensors) and centrally on a cloud service. This intelligent surveillance system has been conceived and designed to anticipate volume crimes in areas where video surveillance is allowed by current legislation and more specifically in shops and public transportation systems; intended as a modular and low cost solution. The capability of dynamically adapting the analytic algorithms that are performed on-site provides a more accurate detection of crime evidences.

Źródło:

Journal of Polish Safety and Reliability Association; 2015, 6, 3; 1--8
2084-5316

Pojawia się w:

Journal of Polish Safety and Reliability Association

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 19.

Tytuł:

Low-cost removal of basic red 9 using cow dung ash

Autorzy:

Arya, Raj Kumar
Meena, Ghanshyam
Thapliyal, Devyani
Barman, Sanghamitra
Halder, Gopinath
Shandilya, Pooja

Powiązania:

https://bibliotekanauki.pl/articles/2173437.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

adsorption isotherms
adsorption kinetics
dye removal
low-cost adsorbent
cow dung
ash
izotermy adsorpcji
kinetyka adsorpcji
usuwanie barwnika
tani adsorbent
krowie łajno
popiół

Opis:

In the present study, basic red 9 had been removed from synthetic waste water using animal waste. Cow dung ash had been prepared and characterized by scanning electron microscope. Morphology analysis shows very fine particles of less than 1 μm. The pH analysis study favours a pH of 8.5 for maximum dye removal. The removal of basic red 9 was very fast on cow dung ash. Percentage dye removal was 80.24% and 95.24 in 5 minutes and 90 minutes, respectively at initial dye concentration of 10 ppm.

Źródło:

Chemical and Process Engineering; 2022, 43, 2; 229--242
0208-6425
2300-1925

Pojawia się w:

Chemical and Process Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 20.

Tytuł:

Low-cost, low-resolution IR system with super-resolution interpolation of thermal images for industrial applications

Autorzy:

Więcek, P.
Sankowski, D.

Powiązania:

https://bibliotekanauki.pl/articles/114076.pdf

Data publikacji:

2018

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

Super-resolution
residual deep neural networks
image interpolation

Opis:

In this paper authors present application of deep neural networks for super-resolution interpolation of infrared images. A residual neural network with reduced number of layers was used. The transfer learning using RGB visual images was applied in this research. The validation of the network was performed for 32×24 and 160×120 pixels infrared images, with the up-sampling scale factors 2, 3, 4, 5 and 6. Monitoring of high temperature industrial processes like inductive heating and thermal hardening is the main application of proposed methods.

Źródło:

Measurement Automation Monitoring; 2018, 64, 4; 108-111
2450-2855

Pojawia się w:

Measurement Automation Monitoring

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 21.

Tytuł:

Koncepcja niskokosztowej platformy edukacyjnej
The Concept of Low-cost Educational Platform

Autorzy:

NYCZ, MARIUSZ
NIENAJADŁO, SARA
HAJDER, MIROSŁAW

Powiązania:

https://bibliotekanauki.pl/articles/457179.pdf

Data publikacji:

2017

Wydawca:

Uniwersytet Rzeszowski

Tematy:

Raspberry Pi
Scratch
nauka programowania
programming learning

Opis:

W pracy przedstawiono koncepcje niskokosztowej platformy edukacyjnej. Autorzy prezentują rozwiązania sprzętowe oraz programowe, których głównym celem jest podniesienie jakości edukacji informatycznej w szkołach podstawowych i gimnazjalnych.
This article presents concept of low-cost educational platform. The authors introduce soft-ware and hardware solutions which can help increase quality of IT education in primary and middle schools.

Źródło:

Edukacja-Technika-Informatyka; 2017, 8, 2; 237-242
2080-9069

Pojawia się w:

Edukacja-Technika-Informatyka

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 22.

Tytuł:

Synthetic Gas Production from Fine Coal Gasification Using Low-Cost Catalyst

Autorzy:

Andican, Akbar
Faizal, Muhammad
Said, Muhammad
Aprianti, Nabila

Powiązania:

https://bibliotekanauki.pl/articles/2086400.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

syngas
natural zeolite
thermochemical process
energy

Opis:

The utilisation of fine coal waste is still limited, even though its availability is very abundant in the mining industry. This study utilises fine coal by converting it into syngas through catalytic gasification. The gasification process was carried out at a temperature range of 350–550°C for 10–50 minutes using natural zeolite as a catalyst. The syngas composition and quality parameters were evaluated through the H2/CO ratio, heating value, and gasification efficiency. From the research results, fine coal contained high amounts of carbon and fixed carbon. Temperature is the variable that most influences the gasification process. The addition of zeolite actively increased the CO content in the syngas. The H2/CO ratio of syngas >1, the highest HHV and LHV 16.15 and 14.46 MJ/Nm3 with the highest carbon conversion efficiency value of 88.85%, made fine coal very suitable to be used as raw material for the gasification process to produce environmentally friendly syngas.

Źródło:

Journal of Ecological Engineering; 2022, 23, 5; 64--72
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 23.

Tytuł:

On a practical approach to low-cost ad hoc wireless networking

Autorzy:

Gburzyński, P.
Olesiński, W.

Powiązania:

https://bibliotekanauki.pl/articles/308509.pdf

Data publikacji:

2008

Wydawca:

Instytut Łączności - Państwowy Instytut Badawczy

Tematy:

ad hoc wireless networks
sensor networks
operating systems
reactive systems
specification
simulation

Opis:

Although simple wireless communication involving nodes built of microcontrollers and radio devices from the low end of the price spectrum is quite popular these days, one seldom hears about serious wireless networks built from such devices. Most of the commercially available nodes for ad hoc networking (somewhat inappropriately called "motes") are in fact quite serious computers with megabytes of RAM and rather extravagant resource demands. We show how one can build practical ad hoc networks using the smallest and cheapest devices vailable today. In our networks, such devices are capable of sustaining swarm-intelligent sophisticated routing while offering enough processing power to cater to complex applications involving distributed sensing and monitoring.

Źródło:

Journal of Telecommunications and Information Technology; 2008, 1; 29-42
1509-4553
1899-8852

Pojawia się w:

Journal of Telecommunications and Information Technology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 24.

Tytuł:

Comparative Study of Iron Removal from Groundwater Using Low Cost Adsorbents

Autorzy:

Raheem, Shahad A.
Kadhim, Entidhar Jawad
Abdulhasan, Maryam Jawad

Powiązania:

https://bibliotekanauki.pl/articles/2202201.pdf

Data publikacji:

2022

Wydawca:

Polskie Towarzystwo Inżynierii Ekologicznej

Tematy:

groundwater contamination
iron removal
adsorption
filtration
drinking water
sawdust
barley husk

Opis:

Iron is one of the groundwater contaminants that negatively impact health and the environment. This study is attempted at introducing low cost natural adsorbent for that adsorbs iron from synthetically prepared iron water. Sawdust and barley husks were used as a filter media, either alone or at different mixing ratio of sawdust/barley husks (1:1, 0.5:1, 1:0.5), to study the effect of adsorbent dose on the removal efficiency. Synthetic water of iron was used at different initial concentrations (10, 25, 40, 65, and 80) mg/L to study the effect of initial iron concentration on the removal efficiency. The filtration process was conducted at a surface loading rate of 3 m3/m2.hr. The results showed higher removal efficiency with the increase of iron initial concentration. The results indicated that removal of iron ranged (90–99.34%) for all types of filter media. The best removal was found to be 99.34% at a mixing ratio of 0.5:1 (sawdust/barley husks) at 80 mg/L initial concentration. As a conclusion, Removal of iron was very successfully observed with absorbent materials sawdust and barley husk, which makes the treatment of iron even possible in rural areas and when high concentration of iron is present.

Źródło:

Journal of Ecological Engineering; 2022, 23, 11; 18--23
2299-8993

Pojawia się w:

Journal of Ecological Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 25.

Tytuł:

A Matlab Implementation of Differential GPS for Low-cost GPS Receivers

Autorzy:

Ali, Q
Montenegro, S.

Powiązania:

https://bibliotekanauki.pl/articles/116127.pdf

Data publikacji:

2014

Wydawca:

Uniwersytet Morski w Gdyni. Wydział Nawigacyjny

Tematy:

marine navigation
Global Positioning System GPS
Matlab, Differential GPS (DGPS)
GPS Receiver
unmanned aerial vehicle (UAV)
Global Navigation Satellite System (GNSS)
RINEX Format

Opis:

A number of public codes exist for GPS positioning and baseline determination in off-line mode. However, no software code exists for DGPS exploiting correction factors at base stations, without relying on double difference information. In order to accomplish it, a methodology is introduced in MATLAB environment for DGPS using C/A pseudoranges on single frequency L1 only to make it feasible for low-cost GPS receivers. Our base station is at accurately surveyed reference point. Pseudoranges and geometric ranges are compared at base station to compute the correction factors. These correction factors are then handed over to rover for all valid satellites observed during an epoch. The rover takes it into account for its own true position determination for corresponding epoch. In order to validate the proposed algorithm, our rover is also placed at a pre-determined location. The proposed code is an appropriate and simple to use tool for post-processing of GPS raw data for accurate position determination of a rover e.g. Unmanned Aerial Vehicle during post-mission analysis.

Źródło:

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 343-350
2083-6473
2083-6481

Pojawia się w:

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 26.

Tytuł:

Scaled residue reverse converter for signed numbers with low cost moduli base

Autorzy:

Czyżak, Maciej
Smyk, Robert

Powiązania:

https://bibliotekanauki.pl/articles/376503.pdf

Data publikacji:

2019

Wydawca:

Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej

Tematy:

residue number system
residue reverse conversion
scaling
low-cost moduli

Opis:

The paper presents a realization of the scaled residue reverse converter for the low cost moduli base {2ⁿ -1,2ⁿ ,2ⁿ+1} . The moduli of this type allow for the memoryless reverse conversion using the Chinese Remainder Theorem because the orthogonal projections can be obtained by shifts and additions. Moreover, the modulo reduction of the sum of projections and sign detection algorithms are shown. Also the converter architecture is presented.

Źródło:

Poznan University of Technology Academic Journals. Electrical Engineering; 2019, 98; 101-114
1897-0737

Pojawia się w:

Poznan University of Technology Academic Journals. Electrical Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 27.

Tytuł:

Low-cost hardware implementations of Salsa20 stream cipher in programmable devices

Autorzy:

Sugier, J.

Powiązania:

https://bibliotekanauki.pl/articles/2069359.pdf

Data publikacji:

2013

Wydawca:

Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności

Tematy:

FPGA
stream cipher
hardware implementation
pipelining
iterative architecture

Opis:

Salsa20 is a 256-bit stream cipher that has been proposed to eSTREAM, ECRYPT Stream Cipher Project, and is considered to be one of the most secure and relatively fastest proposals. This paper describes hardware implementation of various architectures of this cipher in popular Field Programmable Gate Arrays (FPGA). The implemented architectures are based on the loop-unrolled data flow organization and after pipelining they can reach the throughput in the range of 20 – 30 Gbps even after fully automatic implementation in popular low-cost families of Spartan-3 and Spartan-6 from Xilinx. More resource-limited iterative architectures achieve speed of 1 – 2 Gbps. The results that are included in this work present potential of the algorithm when it is implemented in a specific FPGA environment and provide some information for evaluation of cipher effectiveness in contemporary popular programmable devices.

Źródło:

Journal of Polish Safety and Reliability Association; 2013, 4, 1; 121--128
2084-5316

Pojawia się w:

Journal of Polish Safety and Reliability Association

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 28.

Tytuł:

A simple and low- cost technique for Closed Incision Negative-Pressure Therapy

Autorzy:

Andrzej, Walczak, Dominik
Michał, Wojtyniak,
Wojciech, Trzeciak, Piotr
Dariusz, Pawełczak,
Zbigniew, Pasieka,

Powiązania:

https://bibliotekanauki.pl/articles/776436.pdf

Data publikacji:

2017

Wydawca:

Fundacja Medigent

Opis:

Surgical site infection (SSI) makes patient care more expensive by prolonging antibiotic usage and hospital stay. Negative pressure wound therapy (NPWT) has been recently reported as a preventive strategy to avoid SSI. We present a simple and low-cost vacuum dressing that may improve surgical wound healing and prevent high-risk wounds from complications.

Źródło:

Negative Pressure Wound Therapy Journal; 2017, 4, 1
2392-0297

Pojawia się w:

Negative Pressure Wound Therapy Journal

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 29.

Tytuł:

Low Cost Design Methods to Enhance Resolution and Dimensions for Printed Electrodes

Autorzy:

Marzęcki, Michał
Tarapata, Grzegorz

Powiązania:

https://bibliotekanauki.pl/articles/1844461.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

technology
inkjet printing
resolution
design method
interdigital electrodes

Opis:

In the paper, we demonstrate the feasibility of interdigital electrodes fabrication with the usage of inkjet printing technology. The emphasis was put to obtain better shape quality and lower spacing between electrodes with respect to typical printing process. The paper presents an analysis of the main factors that have an influence on the dimension and quality of printed structures and proposes two methods that allow eliminating the main problems. The first proposed method is based on controlling the time between patterning of successive drops. While the second method is based on changing the design methods considering printing orientation. Both methods do not require any additional technological processes or the use of any special surface preparation methods. Finally, the obtained results and conclusions were presented and discussed.

Źródło:

International Journal of Electronics and Telecommunications; 2020, 66, 4; 793-799
2300-1933

Pojawia się w:

International Journal of Electronics and Telecommunications

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 30.

Tytuł:

Low-cost thermal scanner image enhancement by merging thermal and visual data

Autorzy:

Olbrycht, R.
Militowski, S.

Powiązania:

https://bibliotekanauki.pl/articles/114113.pdf

Data publikacji:

2015

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

thermal scanner
multispectral
edge detection
thermal camera
image processing

Opis:

This paper demonstrates the application of different image processing techniques to process high resolution visual images and merge it with low resolution thermograms to improve its level of detail. The same idea is applied in commercially available thermal cameras (e.g. FLIR with MSX® technology). Low resolution thermograms considered in this paper were obtained from a thermal scanner with point infrared detector (Fig. 1) sensitive to long wavelength infrared spectral range. The proposed algorithms are Laplacian, Sobel operator, embossing and Gaussian differential blur (described in section 3). The authors processed 6 different thermograms to qualitatively assess obtained results. It was done in a statistical manner through a survey and revealed that both Sobel operator and embossing provided the most clear, detailed and unambiguous results (Fig. 5). Such algorithms may be applied for processing more channels in a multispectral, cost-effective system.

Źródło:

Measurement Automation Monitoring; 2015, 61, 6; 184-186
2450-2855

Pojawia się w:

Measurement Automation Monitoring

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 31.

Tytuł:

A Low-cost Automatic System for Long-term Observations of Soil Temperature

Autorzy:

Zaszewski, Daniel
Gruszczyński, Tomasz

Powiązania:

https://bibliotekanauki.pl/articles/2174655.pdf

Data publikacji:

2023

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

data logger
Arduino boards
soil temperature
heat transport
DS18B20 digital thermometers

Opis:

The description of the physical parameters characterizing heat transport in the soil medium, especially on a regional scale, requires long-term and high frequency observations of temperature changes in soil profiles. This paper presents a project for a multi-channel, modular and universal data logger for temperature distribution data collecting in the soil profile, based on open electronic components, such as Arduino microcontroller systems and DS18B20 thermometers. The data logger tests were carried out in two profiles. The seven-month tests did not show any errors in the functioning of the measurement set. The presented device requires an average current of 320 µA, which allows for its stable operation on one battery set for about 300 days in temperate climate conditions. The DS18B20 thermometers allow for accurate and stable temperature measurement (the mean absolute error after laboratory calibration was 0.02°C). The cost of a single measurement-registration device was approximately 76 EUR, representing a competitive price in comparison with commercial data loggers. This allows, with relatively low expenditure, the creation of extensive observation networks for the analysis of the heat flow process in high temporal and spatial resolution.

Źródło:

Geomatics and Environmental Engineering; 2023, 17, 1; 75--101
1898-1135

Pojawia się w:

Geomatics and Environmental Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 32.

Tytuł:

Investigating the capability of low-cost FDM printers in producing microfluidic devices

Autorzy:

Haouari, K.B.
Ouardouz, M.

Powiązania:

https://bibliotekanauki.pl/articles/24200549.pdf

Data publikacji:

2022

Wydawca:

Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach

Tematy:

microfluidics
FDM
3D printing
additive manufacturing
mikroprzepływy
druk 3D
produkcja addytywna

Opis:

Purpose: This paper aims to investigate the possibilities of using 3D printing by fused deposition modelling (FDM) technology for developing micro-fluidic devices by printing a benchmark test part. A low-cost desktop printer is evaluated to compare the minimum possible diameter size, and accuracy in the microchannel body. Design/methodology/approach: The parts were designed using SolidWorks 2016 CAD software and printed using a low-cost desktop FDM printer and Polylactic acid (PLA) filament. Findings: Desktop 3D printers are capable of printing open microchannels with minimum dimensions of 300 μm width and 200 μm depth. Research limitations/implications: Future works should focus on developing new materials and optimizing the process parameters of the FDM technique and evaluating other 3D printing technologies and different printers. Originality/value: The paper shows the possibility of desktop 3D printers in printing microfluidic devices and provides a design of a benchmark part for testing and evaluating printing resolution and accuracy.

Źródło:

Archives of Materials Science and Engineering; 2022, 115, 1; 5--12
1897-2764

Pojawia się w:

Archives of Materials Science and Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 33.

Tytuł:

Low cost attitude and heading sensors in terrestrial photogrammetry – calibration and testing

Autorzy:

Kolecki, J.
Kuras, P.

Powiązania:

https://bibliotekanauki.pl/articles/131314.pdf

Data publikacji:

2011

Wydawca:

Stowarzyszenie Geodetów Polskich

Tematy:

direct georeferencing
IMU
GPS/INS
bundle adjustment
sensor calibration
accuracy test
metoda wiązek
badanie dokładności

Opis:

Most of the contemporary terrestrial mobile mapping systems (MMSs) use tactical or navigation grade inertial measurement units (IMU) to determine the approximated angular exterior orientation (EO) elements of images. Navigation grade IMUs, usually integrated with GNSS receivers, are also used to determine the projection center coordinates. Recent researches show that using also a low-cost attitude and heading reference system (AHRS) or a low-cost IMU, satisfies the demands of certain photogrammetric applications. Our researches aim to evaluate the accuracy of low-cost devices suitable for constructing small, low-cost photogrammetric MMS. During our research two low-cost devices, providing information about image attitude and heading, were tested. The first one is the calibrated Ricoh G700SE GPS camera with an electronic compass and a level indicator. The second device is the Xsens MTi AHRS unit, comprising 3 MEMS (micro-electromechanical systems) gyros, 3 MEMS accelerometers and 3 magnetometers. For the testing purposes the AHRS was combined with the calibrated Nikon D80 SLR camera. The 3D AHRS magnetometer calibration was carried out using the manufacturer's software to compensate for the soft and hard iron effects. The images of three test fields were taken. The images of the first test field with signalized control points were used to determine the boresight rotation matrix of the AHRS. The bundle adjustment was solved separately for each camera and each test field to determine the true (reference) angular exterior orientation parameters. The differences between measured and calculated angles allowed to evaluate the accuracy of the measured angles. The tests results for the GPS camera show high residuals of measured azimuths, however its level indicator allows camera levelling with subdegree accuracy. The results obtained for the low-cost AHRS unit were significantly better, however over 2° residuals for yaw angle were also observed. The results prove the usefulness of the AHRS for constructing a small, hand-held MMS, whereas GPS camera azimuth measurements can be treated rather as a rough approximations in the photogrammetric network adjustment.

Źródło:

Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2011, 22; 249-260
2083-2214
2391-9477

Pojawia się w:

Archiwum Fotogrametrii, Kartografii i Teledetekcji

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 34.

Tytuł:

EXPLORING FLEXIBLE AND LOW-COST ALTERNATIVES TO FACE-TO-FACE ACADEMIC SUPPORT

Autorzy:

Dobozy, Eva
Pospisil, Romana

Powiązania:

https://bibliotekanauki.pl/articles/941251.pdf

Data publikacji:

2009

Wydawca:

Uniwersytet Marii Curie-Skłodowskiej w Lublinie. IATEFL Poland Computer Special Interest Group

Tematy:

Self-directed flexible intervention
student engagement
learning design
net-generation
millennials
generation Y
Blackboard
LAMS
Camtasia

Opis:

In this paper we address some of the issues surrounding the use of educational technology solutions with first year net generation students in an introductory education studies unit. These issues include the need for more engaging learning experiences, the role of technology in supporting this need, and the possible mismatch between expectations and actual needs. The student usage and access of a low-cost, flexible alternative to face-to-face individual or group-based academic support was the focus of this case study. We describe our rationale and attempt to help students with their assignment requirements in a first year teacher education unit through the development of a small-scale self-directed intervention program, and report on student engagement with the model. Analysis of the data brings to light findings that have implications for policy design and shows a need for timely research to better inform lecturers of their students’ digital literacy, acceptance and access, and use of innovative learning designs. This also highlights the requirement for a greater awareness of the technologies that students embrace, the technologies that may pose a challenge and the differing needs of first year students to those of the more experienced learners.

Źródło:

Teaching English with Technology; 2009, 9, 2; 73-92
1642-1027

Pojawia się w:

Teaching English with Technology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 35.

Tytuł:

Implementation of flat slab column reinforced concrete frames in low cost housing construction

Autorzy:

Onyshchenko, V.
Pavlikov, A.
Mykytenko, S.

Powiązania:

https://bibliotekanauki.pl/articles/111103.pdf

Data publikacji:

2016

Wydawca:

Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.

Tematy:

flat slab column conduit
reinforced concrete framework of building
low-cost housing

Opis:

In research presents an analysis of flat slab column reinforced concrete frames in low cost housing construction. The features of precast flat slab column conduit within reinforced concrete frame building have been analyzed. The problems in designing flat slab column frame to improve its reliability are under consideration. Suggestions concerning the ways of improving flat slab column frame building calculations are presented. Precast flat slab column frame constructive system is promising for construction of residential and public buildings. In order to reduce the values of bending moments in the joints of columns, it is suggested to apply solid diaphragms with the functions of taking up the vertical loads in order to take up horizontal loads. It seems reasonable to define the required amount of reinforcement bars in plates by means of the kinematic limit equilibrium method.

Źródło:

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych; 2016, 3; 29-33
2450-1859
2450-8721

Pojawia się w:

Inżynieria Bezpieczeństwa Obiektów Antropogenicznych

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 36.

Tytuł:

Low cost soft robotic gloves for at-home rehabilitation and daily living activities

Autorzy:

Souhail, Amir
Vessakosol, Passakorn

Powiązania:

https://bibliotekanauki.pl/articles/950922.pdf

Data publikacji:

2019

Wydawca:

Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów

Tematy:

stroke
rehabilitation device
pneumatic actuators
ow cost silicones
soft robotic glove
Kapandji test

Opis:

Stroke is one of the major reasons which affect the human hand functionality and lead to disability. Different repetitive exercises are used to regain the hand functionality which involves robotic exoskeleton. Soft pneumatic actuators are one of the good alternatives to rigid and fixed exoskeletons for rehabilitation. This paper presents soft robotic gloves fabricated with two different lowcost silicones which can be used in daily living activities and rehabilitation purpose. Soft robotic gloves are light weight and compact. These robotic gloves utilize the pneumatic pressure to flex and extend the human hand. Soft robotic gloves were tested on a healthy object for grasping and rehabilitation ability. Results showed that robotic glove was able to grasping and do the Kapandji test. This work presents an important step toward low cost efficient soft robotic devices for rehabilitation of stroke patients.

Źródło:

Journal of Automation Mobile Robotics and Intelligent Systems; 2019, 13, 3; 14-26
1897-8649
2080-2145

Pojawia się w:

Journal of Automation Mobile Robotics and Intelligent Systems

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 37.

Tytuł:

Exploring service quality of low-cost airlines in Europe: An integrated MCDM approach

Autorzy:

Mahmut, Bakır
Şahap, Akan
Emrah, Durmaz

Powiązania:

https://bibliotekanauki.pl/articles/557664.pdf

Data publikacji:

2019-06-28

Wydawca:

Uniwersytet Ekonomiczny w Poznaniu

Tematy:

airline
service quality measurement
MCDM methods

Opis:

This study aims to evaluate service quality performance of major LCCs (Low Cost Carriers) in Europe by the MCDM (Multi-Criteria Decision Making) methodology. In addition it focuses on managerial business models and includes the international airline service providers that have applied the cost leadership strategy. In the study passenger reviews based on customer-rating systems are adopted as an alternative data source. For this purpose 24,971 passenger reviews, including 7 evaluation criteria, are analyzed. In this integrated methodology the Entropy method is used to weight the service quality criteria and the WASPAS method is used to rank the airlines. A sensitivity analysis is also applied and the robustness and stability of the application are confirmed. Consequently Jet2.com demonstrates the best service performance overall and legroom is the most important evaluation criterion.

Źródło:

Economics and Business Review; 2019, 5 (19), 2
2392-1641

Pojawia się w:

Economics and Business Review

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 38.

Tytuł:

A low cost depth sensor-based computer control system for the disabled people

Autorzy:

Połok, B.
Bilski, P.

Powiązania:

https://bibliotekanauki.pl/articles/114142.pdf

Data publikacji:

2016

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

disabled people
human-computer interaction
Kinect
infrared sensors

Opis:

The paper presents the system for support interaction of disabled people using a low-cost computer module. The system is based on the Microsoft Kinect device. Its usability strongly depends on the designed software. The architecture of both software and hardware part of the system is discussed. The tests performed on human volunteers are presented as well. The conducted research confirms the usability of the system, showing its disadvantages and limitations.

Źródło:

Measurement Automation Monitoring; 2016, 62, 9; 292-296
2450-2855

Pojawia się w:

Measurement Automation Monitoring

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 39.

Tytuł:

Evaluation of RTKLIBs Positioning Accuracy Usingn low-cost GNSS Receiver and ASG-EUPOS

Autorzy:

Wiśniewski, B.
Bruniecki, K.
Moszyński, M.

Powiązania:

https://bibliotekanauki.pl/articles/117289.pdf

Data publikacji:

2013

Wydawca:

Uniwersytet Morski w Gdyni. Wydział Nawigacyjny

Tematy:

Differential GPS (DGPS)
real time kinematic
postprocessing

Opis:

The paper focuses on a comparison of different positioning methods provided by free and open source software (FOSS) package called RTKLIB. The RTKLIB supports real‐time and post‐processed positioning. The most important modes of operation tested by the authors are Kinematic, Static, Fixed and Precise Point Positioning (PPP). The data for evaluation were obtained from low‐cost Global Navigation Satellite System (GNSS) receiver. The tested receiver was based on the u‐bloxʹs LEA‐6T GNSS module. This receiver provides different types of information including raw carrier phase measurements. It gives the possibility for centimeter‐level precision of positioning. As the supporting source of data ASG‐EUPOS system was used. ASG‐EUPOS is a Polish network of GNSS reference stations providing the real‐time corrections and post processing services for the entire territory of Poland.

Źródło:

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 1; 79-85
2083-6473
2083-6481

Pojawia się w:

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 40.

Tytuł:

Digital Fabrication of Mathematical Models via Low-Cost 3D FDM Desktop Printer

Autorzy:

Gür, Y.

Powiązania:

https://bibliotekanauki.pl/articles/1401922.pdf

Data publikacji:

2015-08

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

01.50.H-
02.60.Cb
07.05.Tp
81.20.Hy

Opis:

Additive manufacturing technology is developed throughout the 1980's and 1990's. This technology makes the realization of mathematical models much easier. The challenge focused is here to fabricate real objects from very complex mathematical models by using a low-cost 3D fused deposition modeling desktop printer. Thus this brings the intangible mathematical expressions to life. In this study it is illustrated that complex mathematical expressions are not only numbers and symbols but also they are real life objects. In the examples, some mathematical functions such as Möbius strip, Schwartz functions and their boundary conditions are introduced and then digitally fabricated. This work shows that how complex functional mathematical models that cannot be manufactured with classical engineering methods or very difficult to produce can be fabricated by using a 3D FDM desktop printer.

Źródło:

Acta Physica Polonica A; 2015, 128, 2B; B-100-B-102
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 41.

Tytuł:

A low-cost embedded inertial measurement system for the monitoring of human movement

Autorzy:

Łazoryszczak, M.
Peryt, S.

Powiązania:

https://bibliotekanauki.pl/articles/114182.pdf

Data publikacji:

2015

Wydawca:

Stowarzyszenie Inżynierów i Techników Mechaników Polskich

Tematy:

inertial measurement unit
embedded systems
human movement monitoring
sensor networks

Opis:

The paper presents a part of a prototype system for the monitoring of selected vital functions of humans and some preliminary results obtained from the device using implemented algorithm. The system consists of such essential modules like a microcontroller board, an inertial measurement unit and additional sensors. The main task of the device is human movement monitoring and detecting selected anomalies, e.g. fall or fainting. At the first stage, the movement classification was considered. The main movement type are walking, running and selected variants of transitions between different phases like standing up or going downstairs. The determining of the movement is based on the intuitive algorithm using raw data from accelerometers complemented by sensors like barometer and heart rate monitor. The algorithm utilizes automated multiscale-based peak detection and wavelet transform energy calculations. Finally, some further work directions and development possibilities are discussed.

Źródło:

Measurement Automation Monitoring; 2015, 61, 12; 542-544
2450-2855

Pojawia się w:

Measurement Automation Monitoring

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 42.

Tytuł:

Motivation and Value of Low-Cost Green Car (LCGC) Purchase Intention Across Generations

Autorzy:

Kirana, Lorenza
Windasari, Nila A.

Powiązania:

https://bibliotekanauki.pl/articles/2014184.pdf

Data publikacji:

2019

Wydawca:

Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania

Tematy:

customer motivation
hedonic
LCGC
perceived value
purchase intention
utilitarian

Opis:

The low-cost green car (LCGC) is becoming one of interesting research topics in the automobile industry along with its unique characteristics of a vehicle product, tax incentives, and industry growth. The characteristics of this green product and its economic value are ultimately shifting customer behavior. Therefore, an understanding of the purchase motivation and value perception is crucial to determine the purchase intention. Perceived value acted as a full experience that customers received as a combination of thinking and feeling dimensions which are consistent with the utilitarian and hedonic motivations. Besides, LCGC sales have also been growing recently from the fi rst car owner until more senior customers who are predicted to have different motivations and values across generations. This study explores the LCGC car purchase intention of 240 customers in Indonesia to fi nd relationships of buyers’ motivation and perceived value to the LCGC purchase intention across generations X, Y, and Z. The result shows that hedonic motivation signifi cantly differs particularly between generation Y versus Z, and X versus Z. However, utilitarian motivation does not signifi cantly differ among generations. Further, perceived value also signifi cantly differs between generations X and Y.

Źródło:

Journal of Marketing and Consumer Behaviour in Emerging Markets; 2019, 1(9); 30-41
2449-6634

Pojawia się w:

Journal of Marketing and Consumer Behaviour in Emerging Markets

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 43.

Tytuł:

Small and low-cost mobile mapping systems
Małe i niedrogie mobilne systemy fotogrametryczne

Autorzy:

Kolecki, J.

Powiązania:

https://bibliotekanauki.pl/articles/385839.pdf

Data publikacji:

2011

Wydawca:

Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH

Tematy:

system mobilny
GPS
INS
kompas elektroniczny
fotogrametria naziemna
mobile mapping
direct georeferencing
IMU
digital compass sensor fusion

Opis:

Nowadays acquisition of large amount of data for various mapping applications like creation of a terrain, building or a building part models is performed mainly using laser scanners or photogrammetric methods. From early nineties we observe more intensive development of a mobile mapping systems integrating various types of cameras not only with positioning systems like GPS, but also with inertial measurements units (IMU) and other geo-referencing sensors. Such mobile mapping devices have obviously very high prices, are large-sized and have usually very high weight. There are however some lightweight constructions basing on alternative solutions other then those met in expensive commercial systems. The researches conducted among many institutions in the world show that such systems may be in fact constructed using relatively inexpensive devices, available on the market. The accuracy demands could be satisfied for a bulk of mapping applications. This paper addresses the topic of low-cost mobile mapping systems. First of all a few examples of such systems will be presented, and then more detailed overview of geo-referencing technologies will be given.
Obecnie pozyskiwanie dużej ilości danych na potrzeby budowy modelu terenu, budynku lub jego fragmentu w praktyce przeprowadzane jest głównie z wykorzystaniem technologii fotogrametrycznej lub skaningu laserowego. O początku lat 90. ubiegłego wieku ma miejsce intensywniejszy rozwój systemów mobilnych integrujących różnego typu kamery i aparaty fotograficzne z systemami do pomiaru pozycji, takimi jak na przykład GPS, oraz często także z jednostkami inercyjnymi. Tego typu systemy cechuje ze zrozumiałych względów wysoka cena oraz znaczna masa i rozmiary. Istnieją jednak konstrukcje tańsze, wykorzystujące często inne rozwiązanie niż te spotykane w systemach komercyjnych, pozwalające jednocześnie na konstrukcję systemu o mniejszej masie. Jak pokazuje praktyka badawcza, tego typu urządzenia mogą być z powodzeniem konstruowane z wykorzystaniem dostępnych na rynku komponentów. Niejednokrotnie tego typu systemy mobilne pozwalają na osiągnięcie wymaganych dla danego celu dokładności.

Źródło:

Geomatics and Environmental Engineering; 2011, 5, 2; 43-53
1898-1135

Pojawia się w:

Geomatics and Environmental Engineering

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 44.

Tytuł:

Low cost artificial recreational coastal lagoon: Hydrographic, and design guidelines in development resorts

Autorzy:

El Gohary, Rasha I.M.

Powiązania:

https://bibliotekanauki.pl/articles/292628.pdf

Data publikacji:

2020

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

artificial recreational coastal lagoon
hydrographic survey
mathematical model
production and injection wells
water quality modelling

Opis:

The objective of the research is to find low cost alternative for conventional recreational lagoons that consume water and energy used for desalination which is the only alternative for water treatment in most touristic villages all over the world. The study uses low cost recreational lagoon with new technology that use brackish water from deep wells and purify this water before entering the lagoon by controlled pulses and energyefficient ultrasound filtration. This allows to maintain the water within predefined parameters, guaranteeing standardized water quality in all lagoons. The research introduces the lagoon new technology and its low cost design including feeding and drainage wells, second, the hydrographic surveying for the coastline in the study area, third water quality modelling for the production and injection wells, fourth, use SOBEK 1-2 Mathematical Model for determine the water depth and perspective water volume for the designed lagoon. The aim of this model: Determine the relation between the water depth and the water volume for the canal and the lakes. Second, calculate the evaporation rate from the surface, Determine the number and capacity of the water wells needed to fill the canal and the lakes, and Find out the relationship between the discharge and the time needed to circulate the water in the canal and the lakes to keep their water quality. The results of the measurements from the observation well prove that the optimal discharge per each well is 0.022 m³·s^–1. The construction of suggested new green technology lagoon are very low cost, completely environmentally friendly, in addition fulfils the highest standards of environmental safety.

Źródło:

Journal of Water and Land Development; 2020, 46; 45-59
1429-7426
2083-4535

Pojawia się w:

Journal of Water and Land Development

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 45.

Tytuł:

Development of small-scale low-cost methods of drying herbs and agricultural products

Autorzy:

Trzepieciński, Tomasz
Niemiec, Witold

Powiązania:

https://bibliotekanauki.pl/articles/105456.pdf

Data publikacji:

2019

Wydawca:

Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza

Tematy:

drying
drying chamber
herbs
herbs cultivation
solar collector
spices
wood chip burner
suszenie
zioła
uprawa
kolektor słoneczny

Opis:

Herbs are characterised by different contents of biologically active substances, hence they are widely used in various branches of industry. Herb cultivation in East-Central Europe focuses on small-sized areas requiring machines and equipment adapted to the scale of production. The processing of herb plants involves drying, which is one of the most important stages of herb preservation, conditioning the right quality of the raw material. This article presents a short description of the methods for herb preservation and a classification of drying systems using solar energy and hot air. Looking for ways to assure the drying of the crops in unfavourable atmospheric conditions, variants of solar collectors with the biomass-powered furnace for heating drying air in driers of herbs have been invented. The solutions developed by authors of this paper to provide small-scale low-cost technological devices for the drying of herbs and specialty crops are also presented. The installations presented use hot air from solar radiation and heat generated from the combustion of biomass in the form of wood chips. These installations and equipment do not require an electricity supply. The elimination of natural drying through the use of drying chambers eliminates the unfavourable effect of ultraviolet radiation on the loss of essential oils. The drying installations and devices presented in this article are under patenting procedure.

Źródło:

Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2019, 66, 1; 57-68
2300-5130
2300-8903

Pojawia się w:

Czasopismo Inżynierii Lądowej, Środowiska i Architektury

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 46.

Tytuł:

Development of small-scale low-cost methods of drying herbs and agricultural products

Autorzy:

Trzepieciński, Tomasz
Niemiec, Witold

Powiązania:

https://bibliotekanauki.pl/articles/2065740.pdf

Data publikacji:

2019

Wydawca:

Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza

Tematy:

drying
drying chamber
herbs
herbs cultivation
solar collector
spices
wood chip burner
suszenie
zioła
uprawa
kolektor słoneczny

Opis:

Herbs are characterised by different contents of biologically active substances, hence they are widely used in various branches of industry. Herb cultivation in East-Central Europe focuses on small-sized areas requiring machines and equipment adapted to the scale of production. The processing of herb plants involves drying, which is one of the most important stages of herb preservation, conditioning the right quality of the raw material. This article presents a short description of the methods for herb preservation and a classification of drying systems using solar energy and hot air. Looking for ways to assure the drying of the crops in unfavourable atmospheric conditions, variants of solar collectors with the biomass-powered furnace for heating drying air in driers of herbs have been invented. The solutions developed by authors of this paper to provide small-scale low-cost technological devices for the drying of herbs and specialty crops are also presented. The installations presented use hot air from solar radiation and heat generated from the combustion of biomass in the form of wood chips. These installations and equipment do not require an electricity supply. The elimination of natural drying through the use of drying chambers eliminates the unfavourable effect of ultraviolet radiation on the loss of essential oils. The drying installations and devices presented in this article are under patenting procedure.

Źródło:

Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2019, 66, 1; 57--68
2300-5130
2300-8903

Pojawia się w:

Czasopismo Inżynierii Lądowej, Środowiska i Architektury

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 47.

Tytuł:

Zastosowanie tanich adsorbentów do uzdatniania wody
Low-cost sorbents applications for water treatment

Autorzy:

Kamiński, W.
Tomczak, E.

Powiązania:

https://bibliotekanauki.pl/articles/125882.pdf

Data publikacji:

2014

Wydawca:

Towarzystwo Chemii i Inżynierii Ekologicznej

Tematy:

naturalne sorbenty
oczyszczanie wody
równowaga
kinetyka sorpcji
dynamika sorpcji
natural sorbents
water treatment
equilibrium
kinetics sorption
dynamic sorption

Opis:

W ciągu ostatnich kilku lat poszukiwanie nowych tanich sorbentów stało się ważnym, szeroko analizowanym zagadnieniem przez wiodące światowe ośrodki badawcze. Tematyka obejmuje adsorpcję: jonów metali ciężkich, barwników, fenoli i ich pochodnych, węglowodorów itp. Istotą problemu jest zastąpienie drogich tradycyjnych sorbentów tanimi, które często są produkowane z materiałów odpadowych. Ocena skuteczności naturalnych sorbentów wymaga przeprowadzania eksperymentów na konkretnej grupie związków i na wybranym sorbencie. Tanie naturalne sorbenty nie wymagają regeneracji, na przykład mogą być po procesie adsorpcji spalone, zeszkliwione, kompostowane etc. W artykule przedstawiono przegląd wykorzystania tanich sorbentów w zastosowaniu do usuwania zanieczyszczeń z wody. Zaprezentowano usuwanie jonów metali ciężkich, barwników oraz węglowodorów przy wykorzystaniu naturalnych sorbentów. W pracy omówiono równowagę, kinetykę oraz dynamikę sorpcji na podstawie danych literaturowych i wyników badań własnych.
The search for new low-cost sorbents for sorption is an important issue extensively analyzed by the world leading research centers in the last few years. This includes heavy metal ions, dyes, phenols and their derivatives, hydrocarbons, etc. The essence of the problem is to replace expensive traditional sorbents by means of low-cost ones which are often produced from waste materials. Evaluation of the effectiveness of these natural sorbents requires carrying out experiments on specific group of compounds and a selected sorbent. Low-cost sorbents do not require regeneration of sorbents as it may be, for example burnt in incinerators where exhaust gases mast must be treated at appropriate level. This paper presents an overview of the application of low cost sorbents to remove contaminants from water. The manuscript includes the removal of heavy metal ions, dyes, hydrocarbons, etc using low cost adsorbents. In the paper equilibrium, kinetics and dynamics of sorption are evaluated based on literature data and our own research.

Źródło:

Proceedings of ECOpole; 2014, 8, 1; 189-194
1898-617X
2084-4557

Pojawia się w:

Proceedings of ECOpole

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 48.

Tytuł:

Airline service quality evaluation for Indonesian low-cost carriers based on Extenics innovation theory

Autorzy:

Sukwadi, Ronald
Susanto, Angela
Liang, Yun-Chia

Powiązania:

https://bibliotekanauki.pl/articles/1832927.pdf

Data publikacji:

2021

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

airline indonesian
Low-Cost Carriers
LCC
service quality
modified AIRQUAL
Extenics theory
linie lotnicze
indonezyjskie linie lotnicze
jakość usług
tani przewoźnicy

Opis:

Nowadays, the market is getting competitive in all aspects of the survival of the company. Companies, especially in the service industry, realize that in order to win the market, they need to explore new ways of delighting customers. The airline industry has played a vital role in Indonesia's modern development and competitiveness. Fierce competition and shrinking profits have impelled the airlines to stress upon improving the quality of the services being provided to the passengers. Passengers have become very specific about their service needs and often tend to shift to others that provide better services. Service quality has emerged as a critical consideration for airlines in the competitive global market, coinciding with Low-Cost Carriers' rapid proliferation (LCCs), bringing a paradigm shift in airline business strategy. Twenty-five service quality attributes identified through extensive literature review and results obtained through five modified AIRQUAL dimensions are fruitful for airline managers to address service quality issues. This paper aims to evaluate LCCs’ service quality in Indonesia using the Extenics innovation theory. The Extenics innovation theory is a kind of method with the combination of formalization, quantification, and logicalization. It is effectively applied to put forward creative ideas of new services of airlines. The concepts and principles of service attributes classification based on Extenics are also discussed. To consider interdependence and to calculate the relative importance of each criterion, the AHP method is applied. The study demonstrates and signifies that the Extenics theory and AHP method are promising and pragmatic evaluation model for customer-oriented airline strategic planning. This study has a number of practical implications for LCC airlines, its policy makers and managers. Findings of this study suggest that LCC airlines should focus on appropriate strategies for improving their customers’ satisfaction. Airlines should concern on service failures such as delays by providing extra customer care to supplement required material compensation and provide valuable objective feedback and information. A theoretical implication of this study is that Extenics innovation theory can classify and prioritize the service attributes of airlines. Further, the scope of future research works has been discussed at the end to conclude the paper.

Źródło:

Archives of Transport; 2021, 58, 2; 7-20
0866-9546
2300-8830

Pojawia się w:

Archives of Transport

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 49.

Tytuł:

Land vehicle navigation using low-cost integrated smartphone gnss mems and map matching technique

Autorzy:

Mahmoud, Mostafa
Abd Rabbou, Mahmoud
El Shazly, Adel

Powiązania:

https://bibliotekanauki.pl/articles/2174936.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Centrum Badań Kosmicznych PAN

Tematy:

BSSD
MEMS
Kalman filter
hidden Markov model
Viterbi algorithm

Opis:

The demand for smartphone positioning has grown rapidly due to increased positioning accuracy applications, such as land vehicle navigation systems used for vehicle tracking, emergency assistance, and intelligent transportation systems. The integration between navigation systems is necessary to maintain a reliable solution. High-end inertial sensors are not preferred due to their high cost. Smartphone microelectromechanical systems (MEMS) are attractive due to their small size and low cost; however, they suffer from long-term drift, which highlights the need for additional aiding solutions using road network that can perform efficiently for longer periods. In this research, the performance of the Xiaomi MI 8 smartphone's single-frequency precise point positioning was tested in kinematic mode using the between-satellite single-difference (BSSD) technique. A Kalman filter algorithm was used to integrate BSSD and inertial navigation system (INS)-based smartphone MEMS. Map matching technique was proposed to assist navigation systems in global navigation satellite system (GNSS)-denied environments, based on the integration of BSSD-INS and road network models applying hidden Marcov model and Viterbi algorithm. The results showed that BSSD-INS- map performed consistently better than BSSD solution and BSSD–INS integration, irrespective of whether simulated outages were added or not. The root mean square error (RMSE) values for 2D horizontal position accuracy when applying BSSD-INS-map integration improved by 29% and 22%, compared to BSSD and BSSD-INS navigation solutions, respectively, with no simulated outages added. The overall average improvement of proposed BSSD-INS-map integration was 91%, 96%, and 98% in 2D horizontal positioning accuracy, compared to BSSD-INS algorithm for six GNSS simulated signal outages with duration of 10, 20, and 30 s, respectively.

Źródło:

Artificial Satellites. Journal of Planetary Geodesy; 2022, 57, 3; 138--157
2083-6104

Pojawia się w:

Artificial Satellites. Journal of Planetary Geodesy

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 50.

Tytuł:

Low cost implementation of LAN based internet less Industrial system: A system architectural approach

Autorzy:

Ahmed, Sadman Saffaf
Islam, Md. Mashrur
Islam, Anisul

Powiązania:

https://bibliotekanauki.pl/articles/1075605.pdf

Data publikacji:

2019

Wydawca:

Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN

Tematy:

Industrial Monitoring System
Internet of Things
LAN
XAMPP
applications

Opis:

Today, savvy matrix, keen homes, brilliant water systems, canny transportation, are framework frameworks that associate our reality more than we at any point thought conceivable. The basic vision of such frameworks is generally connected with one single idea, the Internet of Things (IoT), where using sensors, the whole physical foundation is firmly combined with data and correspondence advances; where clever observing and the board can be accomplished by means of the utilization of organized implanted gadgets. These gadgets will associate with web to share diverse kinds of information. We have proposed an Industrial Monitoring System utilizing XAMPP server and detecting based applications for web of things. In this paper we use detecting gadgets to check diverse parameters like creation tally, brightening force, control utilization, relative mugginess and temperature of room.

Źródło:

World Scientific News; 2019, 122; 255-262
2392-2192

Pojawia się w:

World Scientific News

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce