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Wyszukujesz frazę "Mobile" wg kryterium: Temat


Tytuł:
Design and Evaluation of Simple UI for Mobile Healthcare Application
Autorzy:
Ito, A.
Powiązania:
https://bibliotekanauki.pl/articles/226292.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mobile healthcare application
weight control
metabolic syndrome
mobile persuasion
Opis:
In 2008, the Japanese government enacted a new healthcare law that requires companies to reduce the weight of overweight employees suffering from so-called metabolic syndrome, and the weight of their spouses. In 2013, companies that fail to reduce the weight of their employees and their spouses will be penalized. So, companies aim to introduce tools to support to loose weight. At first, we developed the first version of mobile application, named HIPPO (Healthcare Information Platform Project), to support to loose weight in 2007. This application worked well during two months and 76% of users whose BMI was 25 or over lost their weight. However, this problem was that many users could not continue to use this application and users who could continued to use this application could loose weight. We thought that to develop application that made user continue to use was important. So, in 2008, redesigned the system architecture and application from three view points, (1) Address real user needs, (2) Rethink and streamline the data-entry model for food and exercise, (3) Make the user experience personal and engaging. We designed one simple application with limited functions and use email as a support tool. As the result, 84% of uses could continue to use the second generation application.
Źródło:
International Journal of Electronics and Telecommunications; 2013, 59, 3; 263-270
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Android Security Policy Enforcement Tool
Autorzy:
Cotterell, K.
Welch, I.
Chen, A.
Powiązania:
https://bibliotekanauki.pl/articles/226930.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mobile computing
Java
Android
security
Opis:
The Android operating system (OS) has become the dominant smart phone OS in recent years due to its accessibility, usability and its open-source philosophy. Consequently, this has also made it a popular target for attackers who aim to install malware on Android devices and take advantage of Android’s coarsegrained, non-revoking permission system. This project designs, implements and evaluates a security tool named COMBdroid, which addresses these security concerns in Android by enforcing fine-grained, user-defined policies. COMBdroid modifies an application before installation, allowing it to override points of security vulnerabilities at run-time. As a proof of concept we have implemented three policies in COMBdroid. This paper documents the development process of COMBdroid, deriving design decisions from the literature review, detailing the design and implementation, and proving the program’s effectiveness through evaluation.
Źródło:
International Journal of Electronics and Telecommunications; 2015, 61, 4; 311-320
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research Studio for Testing Control Algorithms of Mobile Robots
Autorzy:
Dudzik, Sebastian
Szelag, Piotr
Baran, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1844460.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mobile robots
UAV
MATLAB Simulink
QDrone
Opis:
In recent years, a significant development of technologies related to the control and communication of mobile robots, including Unmanned Aerial Vehicles, has been noticeable. Developing these technologies requires having the necessary hardware and software to enable prototyping and simulation of control algorithms in laboratory conditions. The article presents the Laboratory of Intelligent Mobile Robots equipped with the latest solutions. The laboratory equipment consists of four quadcopter drones (QDrone) and two wheeled robots (QBot), equipped with rich sensor sets, a ground control station with Matlab-Simulink software, OptiTRACK object tracking system, and the necessary infrastructure for communication and security. The paper presents the results of measurements from sensors of robots monitoring various quantities during work. The measurements concerned, among others, the quantities of robots registered by IMU sensors of the tested robots (i.e., accelerometers, magnetometers, gyroscopes and others).
Źródło:
International Journal of Electronics and Telecommunications; 2020, 66, 4; 759-768
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research of Leaching of the Printed Circuit Boards Coming from Waste Mobile Phones
Autorzy:
Lisińska, M.
Saternus, M.
Willner, J.
Powiązania:
https://bibliotekanauki.pl/articles/355683.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mobile phone waste
PCB
metals recovery
leaching
Opis:
The continuous changing technologies of electronic devices, mainly mobile phones cause that their life is shorten from year to year (even to 8-12 months); that is way there is a constantly increasing amount of generated waste. Such waste treatment to recover mainly copper and other base metals should be really profitable. The process of metals recovery could be done using different methods including pyro- and hydrometallurgical process. The paper describes the research of leaching process of Printed Circuit Boards (PCB) coming from waste mobile phones. As a leaching agent sulfuric acid was used with addition of hydrogen peroxides. Experiments were carried out for different temperature, acid concentration and addition of hydrogen peroxide. As a result the concentration of copper, zinc, iron and aluminium in the obtained solution was measured. The results were discussed.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 1; 143-147
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance of Non-Binary LDPC Codes for Next Generation Mobile Systems
Autorzy:
Gierszal, H.
Hołubowicz, W.
Kiedrowski, Ł.
Flizikowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/226906.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
LDPC
mobile systems
modulation schemes
non-binary
Opis:
A new family of non-binary LDPC is presented that are based on a finite field GF(64). They may be successfully implemented in single-carrier and OFDM transmission system. Results prove that DAVINCI codes allow for improving the system performance and may be considered to be applied in the future mobile system.
Źródło:
International Journal of Electronics and Telecommunications; 2010, 56, 2; 111-116
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vision localization system for mobile robot with velocities and acceleration estimator
Autorzy:
Dutkiewicz, P.
Kielczewski, M.
Kozłowski, K.
Pazderski, D.
Powiązania:
https://bibliotekanauki.pl/articles/199936.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
vision localization system
mobile robot
acceleration estimator
Opis:
The paper presents a localization system for a mobile robot using the vision system and LED markers and considers the problem of velocity and acceleration estimation in the case of planar motions. Theoretical considerations include the principle of measurement and the details of Kalman estimator with illustrations based on experimental setup. The presented measurement system can be used for a realization of advanced control algorithms for skid-steering mobile robots where significant slippage phenomenon appears.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2010, 58, 1; 29-41
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal sliding control of mobile manipulators
Autorzy:
Galicki, M.
Powiązania:
https://bibliotekanauki.pl/articles/201159.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mobile manipulator
trajectory tracking
finite time control
Opis:
The paper adresses optimal control problem of mobile manipulators. Dynamic equations of those mechanisms are assuemd herein to be uncertain. Moreover, unbounded disturbances act on the mobile manipulator whose end-effector tracks a desired (reference) trajectory given in a task (Certesian) space. A compytionally efficient class of two-stage cascaded (hierarchchical) control algotithms based on both the transpose Jacobian matrix and transpose actuation matrix, has been proposed. The offered control laws involve to kinds of non-singular terminal sliding mode (TSM) manifolds, which were also introduced in the paper. The proposed class of cooperating sub-controllers is shown to be finite time stable be fulfilment of practically reasonable assumptions. The performance of the proposed control strategies is illustated on an exemplary mobile manipulator whose end-effector tracks desired trajectory.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2019, 67, 4; 777-788
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mobile devices and computing cloud resources allocation for interactive applications
Autorzy:
Krawczyk, H.
Nykiel, M.
Powiązania:
https://bibliotekanauki.pl/articles/229566.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mobile devices
computing cloud
task allocation
optimization
Opis:
Using mobile devices such as smartphones or iPads for various interactive applications is currently very common. In the case of complex applications, e.g. chess games, the capabilities of these devices are insufficient to run the application in real time. One of the solutions is to use cloud computing. However, there is an optimization problem of mobile device and cloud resources allocation. An iterative heuristic algorithm for application distribution is proposed. The algorithm minimizes the energy cost of application execution with constrained execution time.
Źródło:
Archives of Control Sciences; 2017, 27, 2; 293-307
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On-demand Bandwidth and Stability Based Unicast Routing in Mobile Adhoc Networks
Autorzy:
Basarkod, P. I.
Manvi, S. S.
Powiązania:
https://bibliotekanauki.pl/articles/963935.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Mobile Ad hoc Network
QoS
stability
routing
mobility
Opis:
Characteristics of mobile ad hoc networks (MANETs) such as lack of central coordination, dynamic topology and limited resources pose a challenging problem in quality of service (QoS) routing. Providing an efficient, robust and low overhead QoS unicast route from source to destination is a critical issue. Bandwidth and route stability are the major important QoS parameters for applications where long duration connections are required with stringent bandwidth requirements for multimedia applications. This paper proposes an On-demand Bandwidth and Stability based Unicast Routing scheme (OBSUR) in MANET by adding additional QoS features to existing Dynamic Source Routing (DSR) protocol. The objective of the OBSUR is to provide QoS satisfied, reliable and robust route for communicating nodes. The scheme works in following steps. (1) Each node in the network periodically (small regular intervals) estimates bandwidth availability, node and link stability, buffer availability, and stability factor between nodes. (2) Construction of neighbor stability and QoS database at every node which is used in route establishment process. (3) The unicast path is constructed by using route request and route reply packets with the help of route information cache, and (4) route maintenance in case of node mobility and route failures. Simulation results show that there is an improvement in terms of traffic admission ratio, control overhead, packet delivery ratio, end to end delay and throughput as compared to Route Stability Based QoS Routing (RSQR) in MANETs.
Źródło:
International Journal of Electronics and Telecommunications; 2014, 60, 1; 27-39
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Medical Telemetry System for Monitoring and Localization of Patients : Functional Model and Algorithms for Biosignals Processing
Autorzy:
Kurzyński, M.
Ryba, P.
Markowski, M.
Woźniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/226709.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
telemedicine
mobile health system
patient monitoring
remote diagnostic
Opis:
The article presents the concept of hospital telemetric system. The goal of the project is a model of early warning systems for patients outside intensive care wards. Proposed system is based on constant telemetric monitoring using objective physiological parameters. Using low-distance sensor network which covers body of a patient, so-called BAN (Body Area Network) is the main innovation of the project. Some preliminary results of ECG analysis and interpretation modules and units of proposed system will be presented.
Źródło:
International Journal of Electronics and Telecommunications; 2010, 56, 4; 445-450
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problems of Processing and Separation of Multi-Material Electronic Waste in Terms of Circular Economy
Autorzy:
Lisińska, M.
Fornalczyk, A.
Willner, J.
Powiązania:
https://bibliotekanauki.pl/articles/356622.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electronic waste
mobile phone
metals recovery
circular economy
Opis:
The article presents current methods used for the recovery of metals from used electronic equipment. The analysis of the composition and structure of the material was made on the example of one of the most popular and widespread e-waste - used cell phones. The article was address the problems of processing and separation of individual components included in these heterogeneous wastes. The main purpose of the conducted research was to prepare the tested material in such a way that the recovery of metalsin the further stages of its processing was as effective as possible. The results of attempts to separate individual material fractions with magnetic, pyrometallurgical or hydrometallurgical methods will be presented. An analysis of the possibilities of managing electronic waste in terms of the circular economy will be made.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 4; 1639-1643
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trajectory tracking control with obstacle avoidance capability for unicycle-like mobile robot
Autorzy:
Kowalczyk, W.
Michałek, M.
Kozłowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/201611.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mobile robot
trajectory tracking
robot control
collision avoidance
Opis:
In this paper the trajectory tracking control algorithm with obstacle avoidance capability is presented. As a robot gets into a neighborhood of the obstacle, the collision avoidance behavior is turned on. It is implemented using the artificial potential function (APF) that increases to infinity as the robot approaches a boundary of the obstacle. This feature guarantees collision avoidance. As avoidance behavior is active only in the neighborhood of the obstacle it does not affect the motion when there is no risk of the collision. Authors show that trajectory of the robot converges to desired one when a robot is out of the APF area. Due to a local characteristic of the APF, the implementation of the algorithm of the robot that uses only on-board sensors is possible. The stability proof is presented for both a near obstacle and obstacle-free areas. Effectiveness of the algorithm is illustrated with experiments on a real robot in an environment with static circle-shaped obstacles.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2012, 60, 3; 537-546
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods for measurement of energy consumption in mobile devices
Autorzy:
Damaševičius, R.
Štuikys, V.
Toldinas, J.
Powiązania:
https://bibliotekanauki.pl/articles/221497.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
battery management
energy consumption
energy measurement
mobile computing
Opis:
Mobile devices have become an integral part of our life and provide dozens of useful services to their users. However, usability of mobile devices is hindered by battery lifetime. Energy conservation can extend battery lifetime, however, any energy management policy requires accurate prediction of energy consumption, which is impossible without reliable energy measurement and estimation methods and tools. We present an analysis of the energy measurement methodologies and describe the implementations of the internal (profiling) software (proprietary, custom) and external software-based (Java API, Sensor API, GSM AT) energy measurement methodologies. The methods are applied to measure energy consumption on a variety of mobile devices (laptop PC, PDA, smart phone). A case study of measuring energy consumption on a mobile computer using 3DMark06 benchmarking software is presented.
Źródło:
Metrology and Measurement Systems; 2013, 20, 3; 419-430
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Influence of the Material Properties on the Endurance of the Self-Adjustable Rocker-Bogie Suspension
Autorzy:
Sokół, Krzysztof
Pierzgalski, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/2049726.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
rocker-boogie
suspension
rover
mobile platform
FEM analysis
Opis:
In this paper one presents the new concept of a rocker-bogie suspension where the suspension members can change their length. As a result of this action the frame with suspension is able to adjust to the specific environmental conditions. The main problem with the designed suspension system is a fact that with an extension of the suspension members their slenderness increases as well as final displacements. The solution of this problem is not so simple because the construction must meet the specific requirements due to participation of the mobile platform in different competitions. In the presented results of numerical simulations one shows an influence of the different materials on stress and displacements magnitudes of suspension members when the mobile platform hits an obstacle. This situation allows one to test different engineering solutions in the worst case scenario when suspension elements may be damaged. Finally the optimum design is presented.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 543-548
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transmission characteristics of the mobile inductively coupled power transfer system for dual transmitters and pickups based on PSpice
Autorzy:
Gao, Xin
Li, Xin
Powiązania:
https://bibliotekanauki.pl/articles/141475.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
high power
ICPT
LCL compensation network
mobile
PSpice
Opis:
In order to meet the application requirements of high-power mobile inductivelycoupled power transfer (ICPT) equipment, the structure of the dual transmitter and pickup can be used to improve the transmission power of the ICPT system. However, this structure cannot easily describe the change of the mutual inductance parameter in the moving state, making the mathematical model difficult to establish. The change of load parameters during the movement will affect the current and voltage at the transmitter and pickup coils. Aiming at these problems, this paper proposes a dual transmitter and pickup ICPT system based on inductor-capacitor-inductor (LCL) compensation network, and analyzes its power transmission efficiency. By setting the shape and size of the coil, the influence of the change of the mutual inductance parameters on the system efficiency during the movement is reduced. The changes of the mutual inductance parameters of the ICPT system under the moving state are simulated by changing the coupling coefficient in the PSpice software. The results show that the structure of the ICPT system used in this paper can improve the output power and reduce the influence of the system when the load changes.
Źródło:
Archives of Electrical Engineering; 2020, 69, 1; 147-157
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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