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Tytuł:
IPv6 in Virtualization Environments
Autorzy:
Chudzik, K.
Kwiatkowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/309578.pdf
Data publikacji:
2011
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
Hyper-V virtual machine
IPv6 protocol
virtualization environment
Opis:
The primary network layer protocol on which theoperation of most computer networks is based, including the Internet is the Internet protocol version 4 (IPv4). Due to the limitations of this protocol, it is becoming increasingly widespread use of the Internet protocol version 6 (IPv6). The IPv6 implements some new features not available in IPv4. The paper provides a short overview of the key features of IPv6 and discussed the possible levels of network virtualization. The research environment to testing the level of support for IPv6 protocol by virtualization environments is proposed. The results of tests conducted using the proposed research environment for Hyper-V virtualizer are presented.
Źródło:
Journal of Telecommunications and Information Technology; 2011, 2; 16-23
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cutting force prediction of Ti6Al4V using a machine learning model of SPH orthogonal cutting process simulations
Autorzy:
Klippel, Hagen
Sanchez, Eduardo Gonzalez
Isabel, Margolis
Röthlin, Matthias
Afrasiabi, Mohamadreza
Michal, Kuffa
Wegener, Konrad
Powiązania:
https://bibliotekanauki.pl/articles/2052187.pdf
Data publikacji:
2022
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
machining
Ti6Al4V
machine learning
SPH
smoothed particle hydrodynamics
meshfree method
Opis:
The prediction of machining processes is a challenging task and usually requires a large experimental basis. These experiments are time-consuming and require manufacturing and testing of different tool geometries at various process conditions to find optimum machining settings. In this paper, a machine learning model of the orthogonal cutting process of Ti6Al4V is proposed to predict the cutting and feed forces for a wide range of process conditions with regards to rake angle, clearance angle, cutting edge radius, feed and cutting speed. The model uses training data generated by virtual experiments, which are conducted using physical based simulations of the orthogonal cutting process with the smoothed particle hydrodynamics (SPH). The ML training set is composed of input parameters, and output process forces from 2500 instances of GPU accelerated SPH simulations. The resulting model provides fast process force predictions and can consider the cutter geometry in comparison to classical analytical approaches.
Źródło:
Journal of Machine Engineering; 2022, 22, 1; 111-123
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of Unconventional Materials on Primary Structural Parts of Machine Tools
Autorzy:
Smolik, J.
Kulisek, V.
Powiązania:
https://bibliotekanauki.pl/articles/971159.pdf
Data publikacji:
2009
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
machine tool design
feed drive complex model
structural parts of machine tools
machine tools lightweight design
layered composite materials
Opis:
The paper is mainly focused on possible domains of application of composite sandwich materials in the field of machine tools. A theoretical case study analyzing the effect of application of composite sandwich materials on the dynamics of the X-feed-drive axis of the horizontal milling machine is presented. The benefits of composite sandwich materials are discussed and summarized in the context of modern machine tools and their desired static and dynamic properties. Experimental case study is also presented.
Źródło:
Journal of Machine Engineering; 2009, 9, 2; 93-105
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Static and dynamic stiffness of cnc machine tool servo drives
Autorzy:
Pandilov, Z.
Dukovski, V.
Powiązania:
https://bibliotekanauki.pl/articles/99473.pdf
Data publikacji:
2010
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
static stiffness
dynamic stiffness
CNC machine tool
servo drive
Opis:
In this paper a model for the servo drive system with disturbance forces is given. Static and dynamic stiffness for the proposed model is analyzed. An equation for analytical calculation of the static stiffness is given. Correctness of the proposed equation is experimentally verified. Simulation of the influence of some parameters on the static and dynamic servo drive system stiffness is performed with simulation program MATLAB & SIMULINK.
Źródło:
Journal of Machine Engineering; 2010, 10, 4; 106-114
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer Aided Optimal Design of Servo Drives for CNC Machine Tools
Autorzy:
Pandilov, Z.
Dukovski, V.
Powiązania:
https://bibliotekanauki.pl/articles/971109.pdf
Data publikacji:
2008
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
computer aided design
servo drives
CNC machine tools
optimal
Opis:
Generally servo drives for CNC machine tools have a very simple kinematic structure. But the optimal servo drives design is a problem which consists of an appropriate selection of AC or DC motors and mechanical transmission elements, which must satisfy some conditions as a system. Because of the extensive calculations and optimization algorithms, original computer programs are developed.
Źródło:
Journal of Machine Engineering; 2008, 8, 1; 77-83
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical evaluation of impact factors to the energy consumption of machine tools
Autorzy:
Wittstock, V.
Kolouch, M.
Paetzold, J.
Powiązania:
https://bibliotekanauki.pl/articles/100171.pdf
Data publikacji:
2013
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
energy efficiency
machine tool
statistical analyses
Opis:
In this paper, a method for the evaluation of the energy consumption of machine tools is presented. For this purpose, the energy consumption of various machine tools has been investigated experimentally. In order to increase the evaluation basis, measured values of energy consumption were also taken from literature. The evaluation contains an analysis of various factors concerning the productivity and the size of the investigated machine tools. This analysis is capable of detecting the impact factors to increase the energy-efficiency of production systems. It can further reduce the effort required for data acquisition when various machine tools are compared.
Źródło:
Journal of Machine Engineering; 2013, 13, 2; 79-91
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance Targeted Synthesis of ASM Controllers on FPGA
Autorzy:
Salauyou, V.
Bulatowa, I.
Powiązania:
https://bibliotekanauki.pl/articles/114178.pdf
Data publikacji:
2018
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
Algorithmic State Machine (ASM)
ASM chart
Finite State Machine (FSM)
performance optimization
Opis:
Performance-driven synthesis of controller circuits is very important and challenging task in digital systems design. The clock frequency of a synchronous sequential logic circuit is dependent in a large part on the maximum propagation delay through its combinational block. The paper presents a new method for FPGA-based design of high-speed Algorithmic State Machine (ASM) controllers. The proposed approach is based on the introduction of additional states of the state machine in order to simplify transition and output logical functions to implement them in the single-level structures. The proposed technique is applied at the stage of converting the ASM chart to the finite state machine description and allows obtaining such an HDL specification that provides an increase in the designed system speed. Experimental results show that our approach achieves an average performance gain of 22.24% to 29.72% (for various FPGA devices) compared with the conventional synthesis method.
Źródło:
Measurement Automation Monitoring; 2018, 64, 2; 31-33
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation of the performance indicators of machine and tractor aggregates using biofuel
Kalkulacja wskaźników wydajności maszyn zagregowanych z ciągnikiem zasilanym biopaliwem
Autorzy:
Anisimov, V.
Ryaboshapka, V.
Ivanovs, S.
Powiązania:
https://bibliotekanauki.pl/articles/334657.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
biodiesel fuel
machine
tractor
efficiency
biopaliwo
maszyna
ciągnik
wydajność
Opis:
The existing methods for the calculation of the performance indicators of machine and tractor aggregates (MTA) do not take into account the effect of biodiesel fuel on their operation and therefore require corrections considering the key and associated factors. The aims of the investigation are clarification of mathematical dependencies in case another kind of fuel is used and development of a methodology for the calculation of the efficiency of the MTA. As a result of simulation of the MTA draft indicators, the effect of biodiesel fuel on the tractive characteristics of the MTA power unit has been investigated under different operating conditions.
Istniejące metody kalkulacji wskaźników wydajności maszyn zagregowanych z ciągnikiem nie biorą pod uwagę wpływu biopaliwa na ich pracę i dlatego wymagają korekt po rozważeniu kluczowych i powiązanych czynników. Kierunki badań są wyjaśnieniem matematycznych zależności, jeżeli inny rodzaj paliwa jest używany i rozwój metodologii dla kalkulacji skuteczności maszyn zagregowanych z ciągnikiem. Jako wynik symulacji wskaźników maszyn zagregowanych z ciągnikiem w fazie projektu, wpływ biopaliwa na pociągowe cechy bloku energetycznego maszyn zagregowanych z ciągnikiem został zbadany na mocy innych warunków eksploatacyjnych.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2016, 61, 3; 16-20
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic properties of scre--bolts connections of sowing machine
Autorzy:
Snitynskyy, V.
Kernytskyy, I.
Diveyev, B.
Horbay, O.
Burtak, V.
Humenyuk, R.
Powiązania:
https://bibliotekanauki.pl/articles/886226.pdf
Data publikacji:
2019
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Scientific Review Engineering and Environmental Sciences; 2019, 28, 4[86]
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimizacija upravlenija dvizheniem mekhanizmov gruzopodemnykh mashin s ehlektroprivodom postojannogo toka
Movement control optimization of lifting machines mechanism with electric drive of district current
Autorzy:
Loveykin, V.
Romasevich, Y.
Powiązania:
https://bibliotekanauki.pl/articles/78149.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
machine control
machine mechanism
Euler-Puasson equation
lifting machine
Opis:
Решена вариационная задача определения оптимального режима движения механизма грузоподъемной машины. Движение механизма описывается дифференциальным уравнением третьего порядка. Установлены условия применения закона движения. Результаты проиллюстрированы графическими зависимостями.
Variational task of optimal regime lifting machines mechanism determination have been solved. Mechanism movement is describable by differential equation of third order. The conditions of law movement using have been ascertained. Results have been illustrated by plots.
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 3
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On counter measure of vibration for machine using alkaline water with polymer
Autorzy:
De Sousa Gama, V.
Tanabe, I.
Takahashi, S.
Powiązania:
https://bibliotekanauki.pl/articles/99397.pdf
Data publikacji:
2014
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
vibration
machine tool
damper
polymer
alkaline water
Opis:
In the 21st century, as it is important to produce the products with high accuracy, high quality and eco-friendly, the most of manufacturers need several daring plans, unique ideas and new technologies. For example, in machine tool technology, restraint of vibration on the machine tool was required for high accuracy and quality, and several countermeasures using costly equipment and large quantity of electrical energy were used for the restraint, however those countermeasures are not enough. Therefore a countermeasure of vibration for machine tool using alkaline water with polymer was developed and evaluated. Polyethylene oxide was used for the polymer because of the low cost and the safety for health. Relationship between the mixed polymer in the alkaline water and the damping ratio were firstly investigated. And the optimum percentage of the polymer was decided for restraint of vibration on a machine tool. Then the damper structures using alkaline water with polymer were development, and the three dampers were set for restraint of vibration in the small machine tool; those are the support units, the vise and the head stock. Each damper was evaluated regarding noise and vibration on the machine tool and surface roughness on a work piece in the experiment. It is concluded from the results that; (1) the optimum percentage of the polymer for the damper was 6 wt%, (2) the damper structures using alkaline water with polymer were very effective for restraint of both noise and vibration on the machine tool and smoothly surface on the work piece.
Źródło:
Journal of Machine Engineering; 2014, 14, 3; 58-70
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving the contouring accuracy of a HSC linear motor milling machine
Autorzy:
Pandilov, Z.
Durakbasa, N.
Dukovski, V.
Powiązania:
https://bibliotekanauki.pl/articles/99668.pdf
Data publikacji:
2011
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
contouring accuracy
linear motor machine
position loop gain
sampling period
Opis:
In recent years, instrumentation circular profile tests have been specified to assess the contouring accuracy of CNC machine tools. Such an instrumentation type test is the HEIDENHAIN grid encoder system, which is particularly appropriate for dynamic measurements, especially at high feed rates. In this paper influence of the position loop gain and sampling period on the contouring accuracy are effectively studied.
Źródło:
Journal of Machine Engineering; 2011, 11, 4; 130-137
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approach to solving mining machine selection problem by using grey theory
Autorzy:
Milisavljevic, V.
Martinetti, A.
Cvjetic, A.
Powiązania:
https://bibliotekanauki.pl/articles/111264.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
machine selection
grey theory
multiple-attribute
uncertain information
mining industry
Opis:
The selection of a mining machine is a multiple-attribute problem that involves the consideration of numerous parameters of various origins. A common task in the mining industry is to select the best machine among several alternatives, which are frequently described both with numerical variables as well as linguistic variables. Numerical variables are mostly related to the technical characteristics of the machines, which are available in detail in most cases. On the other hand, some equally important parameters such as price, reliability, support for service and spare parts, operating cost, etc., are not available at the required level for various reasons; hence, these can be considered uncertain information. For this reason, such information is described with linguistic variables. This paper presents research related to overcoming this problem by using grey theory for selecting a proper mining machine. Grey theory is a well-known method used for multiple-attribute selection problems that involves a system in which parts of the necessary information are known and parts are unknown.
Źródło:
Mining – Informatics, Automation and Electrical Engineering; 2018, 56, 3; 59-64
2450-7326
2449-6421
Pojawia się w:
Mining – Informatics, Automation and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
FSM state merging for low power
Autorzy:
Salauyou, V.
Powiązania:
https://bibliotekanauki.pl/articles/114448.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
finite state machine
low power
merging
internal states
Opis:
A method of finite state machine (FSM) minimization for low power by merging FSM internal states is considered. The general algorithm for the minimization of FSM power consumption by means of merging two states is presented. The algorithm of the merging possibility of two states and the actual algorithm merging of two states for incompletely specified Mealy FSMs are given. In the conclusions, the possible directions of development of this approach are specified.
Źródło:
Measurement Automation Monitoring; 2015, 61, 7; 337-339
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal cost for specific electrical machines
Autorzy:
Vitkova, E.
Hajek, V.
Powiązania:
https://bibliotekanauki.pl/articles/1372907.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:
maszyna elektryczna
koszty
electric machine
costs
Opis:
The work deals with the possibility of assessment of optimal costs for specific product. In this paper it is described the area of costs, their segmentation and assessment. From the aspect of product's price calculation it is very important to set price level of particular costs. The price level must be acceptable from the aspect the whole company's economics (returns).
Źródło:
Maszyny Elektryczne: zeszyty problemowe; 2010, 88; 235-238
0239-3646
2084-5618
Pojawia się w:
Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
One Approach Towards Analytical Determination of the CNC Machine Tool Servo Drives Position Loop Gain
Autorzy:
Pandilov, Z.
Dukovski, V.
Powiązania:
https://bibliotekanauki.pl/articles/971165.pdf
Data publikacji:
2009
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
analytical determination
CNC machine tool
servo drives
position loop gain
Opis:
One of the most important factors which influences the dynamical behaviour of the servo drives for CNC machine tools is position loop gain or Kv-factor. It directly influences the contouring accuracy of the machine tool. Usually position loop gain is experimentally tuned on the already assembled CNC machine tool. This paper gives one approach towards its analytical calculation. The difference between analytical calculated and experimentally obtained Kv-factor is smaller than 5%, which is completely acceptable.
Źródło:
Journal of Machine Engineering; 2009, 9, 2; 63-69
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The development of mechatronic active control system of tool spatial position in parallel kinematics machine tool
Autorzy:
Strutinsky, V. B.
Demyanenko, A. S.
Powiązania:
https://bibliotekanauki.pl/articles/949316.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
parallel kinematics machine tool
accuracy
mechatronics
calibration
Opis:
The method and the mechatronic system of active control of the dynamic spatial positioning of the executive body of a parallel kinematics machine tool are proposed. By means of geometric modeling, the basic analytical relations that characterize the interconnection between the rods of the mechatronic control system and the power rods of the parallel kinematics machine tool are calculated. The analytical dependencies that characterize errors of the spatial position of the executive body of the parallel kinematics machine tool are set out. The prototype of the mechatronic system of active control of the dynamic spatial position of the executive body of the parallel kinematics machine tool has been manufactured and its presetting and viability checking made. The special equipment to control the exact position of the tool of the parallel kinematics machine tool when it comes to the position is proposed.
Źródło:
Journal of Theoretical and Applied Mechanics; 2016, 54, 3; 757-768
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Matematičeskoe modelirovanie kolebanij samohodnyh selskohozâjstvennyh mašinnyh agregatov
Mathematical simulation of oscillations of mobile agricultural machine aggregates
Autorzy:
Bulgakov, V.
Ivanov, S.
Powiązania:
https://bibliotekanauki.pl/articles/337339.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Maszyn Rolniczych
Tematy:
maszyna rolnicza
agregat
symulacja matematyczna
agricultural machine
aggregate
mathematical simulation
Opis:
Theoretical studies and analysis were made of the oscillatory movements of the mobile agricultural machine aggregates in the process of their travel along the surface irregularities of the soil. Differential equations were made of the movement of mechanical systems in a longitudinal-vertical plane with two and with one degree of freedom.
Źródło:
Journal of Research and Applications in Agricultural Engineering; 2007, 52, 3; 24-26
1642-686X
2719-423X
Pojawia się w:
Journal of Research and Applications in Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pomegranate fruit quality assessment using machine intelligence and wavelet features
Autorzy:
Kumar, A.
Rajpurohit, V.S.
Jirage, B.J.
Powiązania:
https://bibliotekanauki.pl/articles/2137.pdf
Data publikacji:
2018
Wydawca:
Instytut Ogrodnictwa
Tematy:
pomegranate
Punica granatum
fruit
quality assessment
artificial neural network
support vector machine
Źródło:
Journal of Horticultural Research; 2018, 26, 1
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Механизм образования эксцентриситета в опорах гидроцилиндра и пути его снижения
Autorzy:
Kobzov, D. U.
Zmurov, V. V.
Powiązania:
https://bibliotekanauki.pl/articles/2068401.pdf
Data publikacji:
2010
Wydawca:
Politechnika Częstochowska
Tematy:
maszyna budowlana
koparka
napęd
building machine
excavator
drive
Opis:
Описан механизм образования эксцентриситета в опорах (проушине и цапфе) гидроцилиндра привода ковша одноковшовой гидрофицированной машины, в частности, для привода ковша одноковшового экскаватора (прямая и обратная лопата). Предложены пути для снижения негативного влияния эксцентриситета в опорах гидроцилиндра на его напряжённо-деформированное состояние.
Opisano proces utworzenia mimośrodowości w podporach hydrowalca napędu czerpaka koparki jednoczerpakowej. Zaproponowano rozwiązanie dla obniżenia negatywnego wpływu mimośrodowości w podporach hydrowalca na stan jego odkształcenia.
Źródło:
Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo; 2010, 16 (166); 33-46
0860-7214
Pojawia się w:
Zeszyty Naukowe Politechniki Częstochowskiej. Budownictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Human - machine interface for presentation robot
Autorzy:
Krejsa, J.
Ondrousek, V.
Powiązania:
https://bibliotekanauki.pl/articles/384419.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
human-robot interface
mobile robot
presentation robot
Opis:
The purpose of mobile presentation robot is to interact with the users providing the required information. This paper presents the approach used in the highest software layer of autonomous mobile robot Advee used commercially for presentation purposes. The requirements for the layer are discussed together with available means of the robot. The particular building blocks and overall structure of the module are shown and key features are described in detail together with the behavior definition. Given module serves successfully when exploited to variable environment represented by people with computer literacy of great variation as proved during module verification tests.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2012, 6, 2; 17-21
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Issledovanie ehnergocberezhenija v kabinakh selskokhozjajjstvennykh mashin
Study of energy conservation in cabin of agricultural machinery
Autorzy:
Tarasenko, S.
Kyurchev, S.
Powiązania:
https://bibliotekanauki.pl/articles/77951.pdf
Data publikacji:
2013
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
car
energy conservation
agricultural machine
machine cabin
ambient temperature
heat flux
Opis:
Проведен анализ условий, влияющих на энергосбережение в кабинах сельскохозяйственных машин.
The conditions that affect energy efficiency in the cabs of agricultural machinery.
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 3
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Support Vector Machine based Decoding Algorithm for BCH Codes
Autorzy:
Sudharsan, V.
Yamuna, B.
Powiązania:
https://bibliotekanauki.pl/articles/958048.pdf
Data publikacji:
2016
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
BCH codes
Chase-2 algorithm
coding gain
kernel
multi-class classification
Soft Decision Decoding
Support Vector Machine
Opis:
Modern communication systems require robust, adaptable and high performance decoders for efficient data transmission. Support Vector Machine (SVM) is a margin based classification and regression technique. In this paper, decoding of Bose Chaudhuri Hocquenghem codes has been approached as a multi-class classification problem using SVM. In conventional decoding algorithms, the procedure for decoding is usually fixed irrespective of the SNR environment in which the transmission takes place, but SVM being a machinelearning algorithm is adaptable to the communication environment. Since the construction of SVM decoder model uses the training data set, application specific decoders can be designed by choosing the training size efficiently. With the soft margin width in SVM being controlled by an equation, which has been formulated as a quadratic programming problem, there are no local minima issues in SVM and is robust to outliers.
Źródło:
Journal of Telecommunications and Information Technology; 2016, 2; 108-112
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elimination of thermal drift in measuring the positioning accuracy of a three axis milling machine
Autorzy:
Stejskal, T.
Dovica, M.
Demeč, P.
Svetlík, J.
Rajťuková, V.
Powiązania:
https://bibliotekanauki.pl/articles/102352.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
accuracy
laser interferometer
positioning
machine tool
Opis:
The aim of this paper is to draw attention to more reliable verification method of positioning accuracy. The improvement lies in mathematical elimination of thermal impact during the measurement process. This thermal impact, always present during the motion of movable parts, is of a special systemic character. It increases the indefiniteness of measurement of the classic measurement method. This measurement uncertainty can be reduced by implementing the procedure introduced in this paper. The reduction can be achieved by separating the temperature impact from other sources of inaccuracy. Such separation is a very new solution. The methodology relies on mathematical processing and does not depend on the manner of accuracy measurement. The evaluation method also yields diagnostic information on the machine’s condition. The experiments were performed with the use of laser interferometer.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 4; 159-167
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 112

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