Temat: quality tracking - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Power-to-gas technologies in terms of the integration with gas networks
Autorzy:: Chaczykowski, M.
Osiadacz, A. J.
Powiązania:: https://bibliotekanauki.pl/articles/175166.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: energy storage
renewable gas
hydrogen injection
gas quality
quality tracking
simulation software
Opis:: In a situation of surplus electricity production from fluctuating renewable energy sources, the optimal allocation, capacity and security of energy storage will play a pivotal role in the management of energy systems. In this context, highly flexible storage facilities providing access to stored energy at very short times are gaining in importance. Power-to-gas technologies combined with the injection of the produced gas to the natural gas network create the possibility of using the existing natural gas infrastructure to store large amounts of electricity converted into chemical energy of the fuel. This paper provides overview of selected demonstration projects carried out in this field. The literature review of the sensitivity of the elements of the gas value chain to the increased hydrogen concentrations is conducted. Next, the results of the simulation study of the effect of hydrogen injection on the hydraulic properties of a gas distribution network providing gas to 1167 customers are presented.
Źródło:: Transactions of the Institute of Fluid-Flow Machinery; 2017, 137; 85-103
0079-3205
Pojawia się w:: Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analiza jakości interfejsu aplikacji internetowej z wykorzystaniem eye-trackingu – studium przypadku
Analysis of the quality of web application interface using eye-tracking – a case study
Autorzy:: Jusiak, Marcin
Miłosz, Marek
Powiązania:: https://bibliotekanauki.pl/articles/98426.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Lubelska. Instytut Informatyki
Tematy:: eye-tracking
aplikacja
jakość interfejsu
application
interface quality
Opis:: Artykuł przedstawia przykład wykorzystania technologii eye-trackingu w badaniu jakości interfejsu aplikacji internetowej. Przedmiotem badań była część webowa systemu FastCat, wspomagającego obsługę miejskich wyścigów rowerowych. Wykorzystana metodyka badawcza polegała na realizacji eksperymentu z użytkownikami, w trakcie którego wykonywane były opracowane typowe scenariusze wykorzystania systemu. Działania użytkowników były rejestrowane z użyciem technologii eye-trackingu i zostały poddane szczegółowej analizie. Sześcioosobowa grupa badawcza posiadała profil analogiczny do potencjalnych użytkowników aplikacji. W końcowej części artykuły przedstawiono rezultaty badań ilościowych, wykaz wykrytych błędów w interfejsie, a także wnioski ukierunkowane na poprawę jego jakości.
The article presents an example of the use of eye-tracking technology in examining the quality of the web application interface. The subject of the research was the web part of the FastCat system, supporting the service of urban cycling races. The research methodology based on the implementation of an active experiment with users, using typical scenarios of system developed. User activities were recorded using eyetracking technology and were subjected to detailed analysis. The six-person research group had a profile analogous to potential users of the application. The final part of the article presents the results of quantitative research, a list of detected errors in the interface, as well as conclusions aimed at improving its quality.
Źródło:: Journal of Computer Sciences Institute; 2019, 10; 62-66
2544-0764
Pojawia się w:: Journal of Computer Sciences Institute
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Application of eye-tracking technology as a diagnostic tool for assessing flight operators. Part 1: Analise of flight operators’ attention distribution and switching using eye-tracking
Autorzy:: Arinicheva, Olga
Lebedeva, Natalia
Malishevskii, Aleksei
Powiązania:: https://bibliotekanauki.pl/articles/1841198.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: professional psychological selection
professional quality
eye-tracking
attention
distraction tolerance
profesjonalny dobór psychologiczny
profesjonalna jakość
okulografia
uwaga
tolerancja na rozproszenie uwagi
Opis:: The paper presents the results of an experiment devoted to studying attention distribution and switching using eye-tracking technology. The experiment was conducted in two stages. At the first stage (year 2016), 48 students majoring in air traffic control were examined. At the second stage (year 2017), 43 students studying to become civil aviation pilots were involved. Correlation analysis methods and Pearson’s chi-squared test were used.
Źródło:: Transport Problems; 2020, 15, 3; 167-179
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Tracking control and robustness study of shifting process
Autorzy:: Zhao, X.
Guan, Ch.
Powiązania:: https://bibliotekanauki.pl/articles/223502.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: heavy vehicles
automatic transmission
shift quality
PID tracking control
Monte Carlo method
pojazdy ciężkie
skrzynia automatyczna
zmiana wytrzymałości
proces kontroli
metoda Monte Carlo
Opis:: Heavy dump vehicles are usually working with big load changes and bad work environment, thus change the friction performance of transmission clutches, as well as great affect the shift quality seriously, which influence the vehicle performance. Many researchers developed a lot to design a useful automatic transmission control system. Using PID tracking control and Monte Carlo method, the controller based on an dynamic model was set up to analyze the shifting process of automatic transmission and its robustness in this paper. The shift process was divided into four stages, low-gear phase, torque phase, inertia phase and high-gear phase. The model presents the process from the first gear to the second gear when the torque has big change. Since the jerk and the friction work of clutch are both related to the speed of clutch which was easier to control, it was chose as the target to control the oil pressure for satisfying the requirement of shift quality. The simulation software, Maplesim and Simulink, were used to build the vehicle model and shifting controller for simulation under different working conditions, and the maximum jerk was changed from 34 m/s3 to 12 m/s3 after the optimization. In this paper the Monte Carlo has been used to quantize and evaluate the robustness of the closed-loop system for the friction coefficients and output torque of turbine variation leading by the friction feature parameters and throttle angle changed. Monte Carlo method was used to analyze the effectiveness and robustness of PID controller, which proves that it has good control effect when the throttle is ongoing minor fluctuations. When the throttle is full opening, a quadratic optimal controller based on disturbance is designed by the method of multi-objective optimization. When it changes within 20 percent, PID controller was designed under the guidance of tracking thoughts. The results also show that the controller could still obtain better effect when the friction coefficient ranged from -40 % to 40 % as well as engine torque changed from -20 % to 20 %, which indicates the robustness of controller.
Źródło:: Archives of Transport; 2018, 46, 2; 97-104
0866-9546
2300-8830
Pojawia się w:: Archives of Transport
Dostawca treści:: Biblioteka Nauki

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