Autor: Andrzejczak, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Architecture of Mobile Robotics Platform planned for Intelligent Robotic Porter System - IRPS project
Autorzy:: Wołoszczuk, A.
Andrzejczak, M.
Szynkarczyk, P.
Powiązania:: https://bibliotekanauki.pl/articles/385030.pdf
Data publikacji:: 2007
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: mobile robots
autonomous navigation
mobile platform
teleoperation
Opis:: The aim of this paper is to present the Intelligent Robotic Porter System with respect to architecture of Mobile Robotic Platform. The set of requirements for Mobile Robotic Platform was defined and analyzed. Main engineering problems that occurred during the development of Mobile Robotic Platform's architecture were specified and described. Problems were confronted with PIAP's proposed solutions for technical issues at this stage of the project.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2007, 1, 3; 59-63
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Specific issues in management of large international research projects in the field of security and defence
Autorzy:: Bukała, A.
Andrzejczak, M.
Wołoszczuk, A.
Powiązania:: https://bibliotekanauki.pl/articles/384622.pdf
Data publikacji:: 2011
Wydawca:: Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:: management
defence
security research project
Opis:: This article presents specifi c characteristics of large international research projects in the area of security and defence. It is based on the experience of the authors gathered while managing international research projects realised within 7th EU Framework Programme, European Defence Agency (EDA) programmes etc. The issues of project size, international and research character are described in the article. Specifi c elements that characterise projects in security and defence fi eld are also identifi ed and discussed. Finally selected key factors determining the success of such projects are mentioned.
Źródło:: Journal of Automation Mobile Robotics and Intelligent Systems; 2011, 5, 4; 51-54
1897-8649
2080-2145
Pojawia się w:: Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Wireless Communication Solution for Distributed Structural Health Monitoring
Autorzy:: Andrzejczak, A.
Łęczycki, P.
Makowski, M.
Pękosławski, B.
Pietrzak, P.
Napieralski, A.
Powiązania:: https://bibliotekanauki.pl/articles/226561.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: wireless sensor networks
IEEE 802.15.4
Bluetooth Low Energy
DASH7
IEEE 802.11n
ZigBee
weightless
structural health monitoring
Opis:: This paper describes a design of wireless distributed SHM (Structure Health Monitoring) system with a particular emphasis on comparison of wireless communication standards. The presented solution is being deployed in the TULCOEMPA project. Several wireless communication standards are compared, with their benefits, disadvantages and typical areas of application. A choice of proper ISM (Industrial Scientific Medical) band and reasons for use of Wireless Sensor Networks are also discussed. The last part of this paper presents the proposed structure and designed prototype. The chosen architecture of the system and the program algorithm used for communication and measurements are described.
Źródło:: International Journal of Electronics and Telecommunications; 2013, 59, 2; 177-184
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Block Cipher Based Public Key Encryption via Indistinguishability Obfuscation
Autorzy:: Horubała, A.
Waszkiewicz, D.
Andrzejczak, M.
Sapiecha, P.
Powiązania:: https://bibliotekanauki.pl/articles/226598.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: indistinguishability obfuscation
public key cryptosystems
homomorphic encryption
cloud computing
information protection
Opis:: The article is devoted to generation techniques of the new public key crypto-systems, which are based on application of indistinguishability obfuscation methods to selected private key crypto-systems. The techniques are applied to symmetric key crypto-system and the target system is asymmetric one. As an input for our approach an implementation of symmetric block cipher with a given private-key is considered. Different obfuscation methods are subjected to processing. The target system would be treated as a public-key for newly created public crypto-system. The approach seems to be interesting from theoretical point of view. Moreover, it can be useful for information protection in a cloud-computing model.
Źródło:: International Journal of Electronics and Telecommunications; 2018, 64, 2; 173-178
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Confidential Greedy Graph Algorithm
Autorzy:: Waszkiewicz, D.
Horubala, A.
Sapiecha, P.
Andrzejczak, M.
Powiązania:: https://bibliotekanauki.pl/articles/226681.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cryptography
fully homomorphic encryption
confidential graph algorithm
cloud computing
Opis:: Confidential algorithm for the approximate graph vertex covering problem is presented in this article. It can preserve privacy of data at every stage of the computation, which is very important in context of cloud computing. Security of our solution is based on fully homomorphic encryption scheme. The time complexity and the security aspects of considered algorithm are described.
Źródło:: International Journal of Electronics and Telecommunications; 2018, 64, 2; 179-183
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Effect of Inoculant Emgesal® Flux 5 on the Microstructure of Magnesium Alloy AZ91
Autorzy:: Rapiejko, C.
Mikusek, D.
Andrzejczak, A.
Pacyniak, T.
Powiązania:: https://bibliotekanauki.pl/articles/380314.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: metallography
solidification process
magnesium alloys
Emgesal® Flux 5
DTA process
metalografia
proces krzepnięcia
stopy magnezu
testy DTA
Opis:: This work presents the results of the research of the effect of the inoculant Emgesal Flux 5 on the microstructure of the magnesium alloy AZ91. The concentration of the inoculant was increased in samples in the range from 0.1% to 0.6%. The thermal processes were examined with the use of Derivative and Thermal Analysis (DTA). During the examination, the DTA samplers were preheated up to 180 °C. A particular attention was paid to finding the optimum amount of inoculant, which would cause fragmentation of the microstructure. The concentration of each element was verified by means of a spark spectrometer. In addition, the microstructures of the samples were examined with the use of an optical microscope, and an image analysis with a statistical analysis using the NIS-Elements program were carried out. Those analyses aimed at examining the differences between the grain diameters of phase αMg and eutectic αMg+γ(Mg17Al12) in the prepared samples as well as the average size of each type of grain by way of measuring their perimeters. This paper is an introduction to a further research of grain refinement in magnesium alloys, especially AZ91. Another purpose of this research is to achieve better micro-structure fragmentation of magnesium alloys without the related changes of the chemical composition, which should improve the mechanical properties.
Źródło:: Archives of Foundry Engineering; 2019, 2; 15-20
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Benefit Effect of Low Addition Yttrium on the Phase αMg and eutectic αMg+γ(Mg17Al12) in AZ91 Alloy
Autorzy:: Mikusek, D.
Rapiejko, C.
Andrzejczak, A.
Pacyniak, T.
Powiązania:: https://bibliotekanauki.pl/articles/2049625.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: magnesium alloy AZ91
yttrium
grain refining
solidification process
investment casting
Opis:: This paper presents results of a study of the effect of inoculation of yttrium on the microstructure of AZ91 alloy. The concentration of the inoculant was increased in samples in the range from 0.1% up to 0.6%. The influence of Y on the thermal effects resulting from the phase transformations occurring during the crystallisation at different inoculant concentrations were examined with the use of Derivative and Thermal Analysis (DTA). The microstructures of the samples were examined with the use of an optical microscope; and an image analysis with a statistical analysis were also carried out. Those analyses aimed at examining oh the effect of inoculation of the Y on the differences between the grain diameters of phase αMg and eutectic αMg+γ(Mg17Al12) in the prepared examined material as well as the average size of each type of grain by way of measuring their perimeters.
Źródło:: Archives of Metallurgy and Materials; 2021, 66, 1; 57-63
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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