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Wyświetlanie 1-15 z 707
Tytuł:
Laboratory model of high frequency sonar
Autorzy:
Buszman, K.
Szymczak, W.
Powiązania:
https://bibliotekanauki.pl/articles/331519.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
laboratory model
sonars
hydroacoustic
Opis:
This article contains the construction and laboratory application of high frequency sonar model. In view of working in laboratory conditions, they must be fulfilled succeeding parametric cases: very narrow beam, low level of side lobes and low acoustic power of transmitted impulse sounding. When all of these conditions are fulfilled, it makes possible the explanation to students some terms like depth, angular resolution and making clear, that water is the best environment to acoustic waves transmission. Furthermore, there is used automatic component, namely rotary antenna, which make possibility to precision area scanning.
Źródło:
Hydroacoustics; 2008, 11; 39-46
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory vector models in regard to animal protection legislation
Autorzy:
Lonc, E
Mizgajska, H.
Hildebrand, J.
Powiązania:
https://bibliotekanauki.pl/articles/839787.pdf
Data publikacji:
1999
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
legislation
laboratory vector model
International Committee for Laboratory Animals
parasitology
animal protection
Źródło:
Annals of Parasitology; 1999, 45, 4
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory modelling and acoustic diagnostics of hydrodynamical processes
Autorzy:
Chernov, V.
Powiązania:
https://bibliotekanauki.pl/articles/331504.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
hydrodynamical processes
laboratory modelling
acoustic diagnostics
Opis:
In the present paper results of modelling of wind interaction with a water layer surface and research of the vortical structures arising downstream the flow around bodies are described. Results of the use of the method of acoustic diagnostics of spatially - periodic vortical flows are presented. At physical modelling in laboratory conditions wind was created with a low-velocity wind tunnel. The structure of an air stream and convective cells on water surface was investigated with the help of visualization. Some pictures of structures on the shallow sea surface are also demonstrated and discussed.
Źródło:
Hydroacoustics; 2008, 11; 47-54
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remote laboratory with WEB interface
Autorzy:
Łuczak, D.
Powiązania:
https://bibliotekanauki.pl/articles/97363.pdf
Data publikacji:
2011
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
WEB interface
remote laboratory
remote control
HTTP
WWW
Opis:
Presentation of selected structures of remote laboratory. The presented structure enables remote control through the Internet and the acquisition of measurement data. The measurement data are presented using a web interface. The final result is microcontroller measuring and control system with web server. System flexibility and ease of access to its resources allow parallel planning an experiment to multiple users simultaneously.
Źródło:
Computer Applications in Electrical Engineering; 2011, 9; 257-268
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory tests of active suspension system
Autorzy:
Konieczny, J.
Powiązania:
https://bibliotekanauki.pl/articles/244574.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
active vehicle suspension
control system
energy consumption
laboratory research
Opis:
The main purpose of this study is to design an active vehicle suspension ensuring high vibration isolation efficiency and stability though the limited consumption of external energy. Active systems used in vehicle suspensions widely employ parallel (full active) structures. It shall be analysed and tested experimentally. The major part of the study summarises the laboratory experiments carried on a designed active vehicle suspension in the form of a quarter car model. Apart from the vibration isolation efficiency offered by the designed and engineered suspension, other considered performance indicators include the system's stability and external energy demand. A laboratory model of the suspension is described and laboratory tests are outlined that were performed to check the adequacy of various control algorithms. An attempt is made to evaluate the energy demand for the given structure and to determine the power ratings of the source supplying the active vibration isolation system. Inter alia quarter-vehicle full active suspension, vibration displacement transmissibility in the function of frequency, transmissibility function from the input to the output for various types of actuator’s controllers, comparison of instantaneous power absorbed from the power-supplying unit for various types of actuator's controllers, comparison of instantaneous power intake from the supplying unit for various types of controllers are presented in the paper.
Źródło:
Journal of KONES; 2011, 18, 1; 263-271
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory tests of stand-alone hydraulic piezo-valve
Autorzy:
Skorupka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/244697.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
laboratory testing
hydraulic valve
flow control
piezo crystal
Opis:
Flow control inside the aviation landing gear shock absorbers is nowadays performed by fixed orifices or by the half-active spring based valves located inside of the device. All of the mentioned solutions are optimized on limited, mostly to one, landing scenarios due to their non-adjustable nature (even spring based valves are treated as passive due to their lack of actual real-time controllability). The easiest way of full hydraulic fluid flow control is to mount in its way a valve, which is able to seamlessly open and close causing the flow to change in wide range. Unfortunately, most of the used solutions are too large or not fast enough to fit the shock absorber requirements. The most promising way is to design tailor-made valve based on a piezo crystal actuator, which is most suitable due to its size and speed. Such a design has been made and tested by the engineers of the Institute of Aviation in Warsaw in Landing Gear Laboratory. In this article, the author describes test campaign of the hydraulic piezo-valve. Several tests have been made in order to assess the design correctness and to determine the basic parameters of the valve. Achieved results, presented in this article, show the full functionality of the solution in laboratory tests according to the design assumptions [8].
Źródło:
Journal of KONES; 2018, 25, 4; 385-381
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Results from laboratory tests of new electric brake prototype
Autorzy:
Grygorcewicz, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/241562.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
laboratory test
electric brake
braking process
Opis:
The main idea of this article was to compare the results of new design electric brake to the older version of hydraulic brake in laboratory tests. The energy of braking should be very similar due to the same mass of the airplane. That is why the laboratory tests of both brakes were took place in the same stand. Of course, the parameters were similar but not at all. The main idea was to create the solution, which could be used in vehicle like airplane. The electric brakes could replace traditional hydraulic brake solution. The results could be interesting for every researcher who is interested in brakes. Other important idea of this article was to describe the tests of new electric brake prototype. The purpose of the tests was to check designing of electric brakes. The electric brake prototype should ensure sufficient efficiency, safety, reliability and durability during braking, which is required in certification processes and is particularly important when researching innovative solutions. It was really important to verify the design and check the parameters. Of course, there is really important to remember that in every new type of the prototype solutions there are many pros and cons, which are typical only for considered design. Nowadays every electric brake design is different because there is a lot of new concept.
Źródło:
Journal of KONES; 2019, 26, 3; 47-52
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hardware and Software Complex for Laboratory of Satellite Technologies
Autorzy:
Kharchenko, Volodymyr
Konin, Valeriy
Pogurelskiy, Oleksiy
Powiązania:
https://bibliotekanauki.pl/articles/504541.pdf
Data publikacji:
2020
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
satellite technologies
laboratory
GNSS
Opis:
Satellite technologies of communication, navigation and surveillance play an important role in modern transport, and particularly in aviation. High effectiveness of global air navigation system is provided by applying data broadcasted from great numbers of satellites, located on Earth orbits. The totality of existing satellite navigation system forms global radio navigation field which parameters should be constantly monitored and controlled for providing safety requirements. The aim of this article is to share experience of creating a laboratory of satellite technologies at the National Aviation University that performs simultaneously educational and scientific tasks.
Źródło:
Logistics and Transport; 2020, 45-46, 1-2; 95-102
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Helminth parasites of laboratory mice and rats
Autorzy:
Perec-Matysiak, A
Okulewicz, A.
Hildebrand, J.
Zalesny, G.
Powiązania:
https://bibliotekanauki.pl/articles/839051.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
mouse
laboratory animal
Syphacia obvelata
pinworm
mice
laboratory rodent
parasitology
Syphacia muris
helminth parasite
rat
Aspiculuris tetraptera
Opis:
Rodents, as mice and rats are the most common laboratory animals used in research and testing. They are seldom investigated for autochthonous ecto- and endoparasites prior their utilization in the experiments. Helminth parasites can alter the interpretation of final results. Pinworms commonly infecting laboratory rodents include mainly the mice pinworms Syphacia obvelata and Aspiculuris tetraptera, and in rats Syphacia muris. The fact that many laboratory rodent colonies were found to be parasite contaminated suggests a need for eradication and improvment of the quality of laboratory rodents. This review reports the data on the presence of helminth parasites in laboratory rodents colonies, and suggests to pay special attention on controlling the sanitary conditions of animal houses.
Źródło:
Annals of Parasitology; 2006, 52, 2
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Helminth parasites of laboratory mice and rats
Autorzy:
Perec-Matysiak, A.
Okulewicz, A.
Hildebrand, J.
Zaleśny, G.
Powiązania:
https://bibliotekanauki.pl/articles/2144331.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
mouse
laboratory animal
Syphacia obvelata
pinworm
mice
laboratory rodent
parasitology
Syphacia muris
helminth parasite
rat
Aspiculuris tetraptera
Opis:
Rodents, as mice and rats are the most common laboratory animals used in research and testing. They are seldom investigated for autochthonous ecto- and endoparasites prior their utilization in the experiments. Helminth parasites can alter the interpretation of final results. Pinworms commonly infecting laboratory rodents include mainly the mice pinworms Syphacia obvelata and Aspiculuris tetraptera, and in rats Syphacia muris. The fact that many laboratory rodent colonies were found to be parasite contaminated suggests a need for eradication and improvment of the quality of laboratory rodents. This review reports the data on the presence of helminth parasites in laboratory rodents colonies, and suggests to pay special attention on controlling the sanitary conditions of animal houses.
Źródło:
Wiadomości Parazytologiczne; 2006, 52, 2; 99-102
0043-5163
Pojawia się w:
Wiadomości Parazytologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Catalysts preparation and investigation: laboratory exercise for students
Autorzy:
Zawadzki, Witold
Powiązania:
https://bibliotekanauki.pl/articles/2079940.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
laboratory course
catalysts preparation
TPR
TG
CO2 methanation
Opis:
Catalysts preparation, investigation its basic properties, activity and selectivity measurements in carbon dioxide methanation reaction was proposed as laboratory course for international students doing a period of study at Maria Curie-Sklodowska University within the frame of the Erasmus mobility programme.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2019, 74, 1; 31-40
2083-358X
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory to measure directivity characteristics of arrays
Autorzy:
Grelowska, G.
Szymczak, W.
Buszman, K.
Powiązania:
https://bibliotekanauki.pl/articles/331630.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
laboratory station
beam sonar’s
hydrophone
Opis:
The paper presents the laboratory station to measure directivity characteristics of narrow beam sonar's and echo sounder's antennas. It will be describe method of collecting samples from surface, unit used to precise positioning receiving hydrophone, construction and use of rack to direct main beam in exact direction. Additionally we show station to measure drift of the sea bottom impedance.
Źródło:
Hydroacoustics; 2008, 11; 381-388
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of the brainstorm method in the innovation laboratory (i-lab)
Autorzy:
KOZIOROWSKA, Anna
DŁUGOSZ, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/457634.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Rzeszowski
Tematy:
brainstorming method
creativity
laboratory of innovation
Opis:
The condition for the success of the sessions carried out in i-Lab (innovation laboratory) is to create free and unfettered atmosphere, inspiring to invent the greatest number of ideas. For this purpose, innovation laboratory uses brainstorming method of collaborative search for solutions. Each participant of the session can anonymously report a lot of the strangest ideas that are not immediately evaluated by others. Deferred evaluation is to encourage everyone to freely and un-conventional thinking.
Źródło:
Edukacja-Technika-Informatyka; 2016, 7, 1; 51-55
2080-9069
Pojawia się w:
Edukacja-Technika-Informatyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Player and Stage at PJIIT Robotics Laboratory
Autorzy:
Ośmiałowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/950816.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
Robotics software
simulation software
open source software
robotics programming
robotics laboratory
Opis:
Player/Stage/Gazebo is an Open-Source Software project designed for robotics research that provides infrastructure for distributed access to robotics equipment both real and simulated. Founded by Brian Gerkey, Richard Vaughan, Andrew Howard, Kasper Stoy and Nate Koenig, it it soon became popular among roboticists community. Project itself gained lots of contributors and many related software projects were started that support or make use of Player/Stage/Gazebo software. At PJIIT Robotics Laboratory we decided to deploy this software for educational purposes as well as for our Virtual Robotics Laboratory project where it plays significant role as an integration platform. Since it is Open-Source Software we were able to contribute new modules and also release fixes for bugs that we have found. This paper deals with our experiences with using and maintaining Player and Stage software.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2007, 1, 3; 21-28
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal analysis and thermovision laboratory tests of electric brakes
Autorzy:
Domański, R.
Grygorcewicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/242600.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
laboratory testing
electric brake
temperature test
braking process
thermovision
Opis:
The purpose of this article was to show two thing thermal issues theory and thermovision tests in the laboratory. The main idea of this article was to describe the thermal issues theory of interesting problem base on the thermovision tests of new type electric brake prototype. After the creation of new product the designer needed to know how behave the prototype of the brake during tests with higher energy which could increase the temperatures on the object in our case of the electric brake prototype. The first step in that kind of issues was thermal analysis, which is very useful to define and subscribe the thermal issues. The second step it was measurement of the temperature, which was really significant during the electric brake tests. It was really important to check the temperature of engines. If there was some influence to the brake during braking. One of the method was using special thermal camera. The camera was checking the temperature during whole test after beginning the test to the end of the trial. The full spectrum of the temperature allowed the author to verify if there was some influence of temperature to the new electric brake prototype. The thermocouple was other type of sensors, which was normally used in our laboratory methodology to check temperature during the test. The pyrometer was other type of the method, which was used to measure the temperature after the test. The results of this measurement were subscribed in this article.
Źródło:
Journal of KONES; 2018, 25, 4; 125-131
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 707

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