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Wyszukujesz frazę "self-organization" wg kryterium: Temat

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Wyświetlanie 1-10 z 115
Tytuł:
Self-organization and Routing Algorithms for the Purpose of the Sensor Network Monitoring Environmental Conditions on a Given Area
Autorzy:
Bronk, K.
Lipka, A.
Wereszko, B.
Żurek, J.
Żurek, K.
Tematy:
network management
network self-organization
sensor networks
Pokaż więcej
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:
https://bibliotekanauki.pl/articles/307916.pdf  Link otwiera się w nowym oknie
Opis:
The article describes an implementation of wireless sensor network (WSN) based on the IEEE 802.15.4-2006 standard, which was designed to monitor environmental conditions (e.g. temperature, humidity, light intensity, etc.) on a given area. To carry out this task, a self-organization algorithm called KNeighbors was selected. It exhibits low computational complexity and is satisfactory with respect to energy consumption. Additionally, the authors proposed a novel routing algorithm and some modifications to the MAC layer of the IEEE 802.15.4 standard. The article discusses the selected algorithms and procedures that were implemented in the network.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fabrication and geometric characterization of highly-ordered hexagonally arranged arrays of nanoporous anodic alumina
Autorzy:
Stępniowski, W. J.
Nowak-Stępniowska, A.
Michalska-Domańska, M.
Norek, M.
Czujko, T.
Bojar, Z.
Tematy:
nanopores
anodization
self-organization
fast Fourier transform
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Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Powiązania:
https://bibliotekanauki.pl/articles/779908.pdf  Link otwiera się w nowym oknie
Opis:
Anodic aluminum oxide (AAO) has been fabricated in the 0.3 M oxalic acid at voltage range 20-60 V and temperature range of 35-50oC. The resulting nanoporous alumina surfaces were characterized by high resolution scanning electron microscopy, and the images were quantitatively analysed by means of an innovative approach based on fast Fourier transform. The influence of operating anodization voltage and electrolyte temperature on nanopores geometry (pore diameter, interpore distance, porosity, pores density) and arrangement has been studied in details and compared to literature data and theoretical calculations. It was found that independently from the temperature, the best arrangement of the nanopores is for anodic aluminum oxide formed at voltages ranging from 40 to 50 V. Moreover, it was found that pore diameter and interpore distance increase linearly with voltage, what is in line with the literature data.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Robotic swarm self-organisation control
Autorzy:
Hendzel, Zenon
Wiech, Jakub
Tematy:
swarm robotics self-organization
PD controller
nonholonomic robots
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Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Powiązania:
https://bibliotekanauki.pl/articles/387481.pdf  Link otwiera się w nowym oknie
Opis:
This article proposes a new swarm control method using distributed proportional-derivative (PD) control for self-organisation of swarm of nonholonomic robots. Kinematics control with distributed proportional-derivative (DPD) controller enables generation of desired robot trajectory achieving collective behaviour of a robotic swarm such as aggregation and pattern formation. Proposed method is a generalisation of virtual spring-damper control used in swarm self-organisation. The article includes the control algorithm synthesis using the Lyapunov control theory and numeric simulations results.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formation of "black silicon" on a surface of Ni/Si structure by Nd:YAG laser radiation
Autorzy:
Medvid', A.
Karabko, A.
Onufrijevs, P.
Dauksta, E.
Dostanko, A.
Tematy:
black silicon
self-organization
microstructures
Nd:YAG laser
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Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Powiązania:
https://bibliotekanauki.pl/articles/385280.pdf  Link otwiera się w nowym oknie
Opis:
We have shown the possibility to form a new type of material known as "black silicon". After irradiation of a Si sample surface, covered with 30 nm thick Ni layer, by Nd: YAG laser beam at intensity 4.5 MW/cm2 the "black silicon" was formed. The formation and self-organization of conelike microstructures on the Ni/Si surface has been detected by scanning electron microscope (SEM). Light is repeatedly reflected between the cones in the way that most of it is absorbed, therefore the surface becomes like a "black body" absorber. The micro-chemical analysis performed on SEM has shown that the microstructures contain NiSi2. This was approved by presence of LO phonon line in Raman back scattering spectrum. The control of micro-cone shape and height was achieved by changing the laser intensity and number of pulses.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Social Politics of Civil Society
Autorzy:
Chyzhevska, Maryna
Chyzhevskyi, Vladyslav
Tematy:
social policy
community
society
state
citizens
self-organization
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Wydawca:
Uniwersytet Mikołaja Kopernika w Toruniu. Wydawnictwo UMK
Powiązania:
https://bibliotekanauki.pl/articles/519588.pdf  Link otwiera się w nowym oknie
Opis:
This paper presents a cross-cultural overview of the features of the dynamics of the perception of the concepts of “society”, “politics”, and “state”. The work raises the issue of complex and multifaceted individual consciousness of understanding policy. Authors formulate this aspect from the perspective of historical dynamics and propose to explore the process of transformation of the ancient city-state and flowing therefrom political relations in the modern state with its complex political system. It was stressed that the problem of understanding the nature and role of social policy is complicated by language as well as etymological and conceptual differences.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The power of denial. From denial to creation: creative resistance in the city of Athens
Autorzy:
Zafeiris, Konstantinos
Tematy:
negative dialectic
creative resistance
self-organization
autonomy
Athens
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Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Powiązania:
https://bibliotekanauki.pl/articles/28407241.pdf  Link otwiera się w nowym oknie
Opis:
The crisis leads to multiple denials in the face of everyday life and the conditions of reproduction of work it imposes. In this paper, I describe the basic denials in spaces of creative resistance in Athens during multiple crises. Through a systematic study of collaborative economy spaces, solidarity structures, and independent art spaces, I discern a progression of individuals from denial to creation and ultimately to action. I also strive to articulate the emerging modes of mobilization within these spaces. Faced with this reality, the act of denial emerges as the primary and transformative catalyst, sparking the forces of creativity and resistance. The denials of everyday life imposed by neoliberalism, as witnessed in Athens during the crisis, resulted in the creation of autonomous and self-organized spaces.
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 115

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