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Tytuł:
Applying shallow nitrogen implantation from rf plasma for dual gate oxide technology
Autorzy:
Bieniek, T.
Beck, R. B.
Jakubowski, A.
Głuszko, G.
Konarski, P.
Ćwil, M.
Powiązania:
https://bibliotekanauki.pl/articles/308685.pdf
Data publikacji:
2007
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
CMOS
dual gate oxide
gate stack
oxynitride
plasma implantation
Opis:
The goal of this work was to study nitrogen implantation from plasma with the aim of applying it in dual gate oxide technology and to examine the influence of the rf power of plasma and that of oxidation type. The obtained structures were examined by means of ellipsometry, SIMS and electrical characterization methods.
Źródło:
Journal of Telecommunications and Information Technology; 2007, 3; 3-8
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Challenges in scaling of CMOS devices towards 65 nm node
Autorzy:
Jurczak, M.
Veloso, A.
Rooyackers, R.
Augendre, E.
Mertens, S.
Rotschild, A.
Scaekers, M.
Lindsay, R.
Lauwers, A.
Henson, K.
Severi, S.
Pollentier, I.
Keersgieter de, A.
Powiązania:
https://bibliotekanauki.pl/articles/308984.pdf
Data publikacji:
2005
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
CMOS devices
gate dielectrics
shallow junctions
silicide
gate stack
lithography
gate patterning
silicon recess
device integration
Opis:
The current trend in scaling transistor gate length below 60 nm is posing great challenges both related to process technology and circuit/system design. From the process technology point of view it is becoming increasingly difficult to continue scaling in traditional way due to fundamental limitations like resolution, quantum effects or random fluctuations. In turn, this has an important impact on electrical device specifications especially leakage current and the circuit power dissipation.
Źródło:
Journal of Telecommunications and Information Technology; 2005, 1; 3-6
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A novel proposal for all-optical XOR/XNOR gate using a nonlinear photonic crystal based ring resonator
Autorzy:
Asghari, Mehrnoush
Moloudian, Gholamhosein
Hassangholizadeh-Kashtiban, Mahdi
Powiązania:
https://bibliotekanauki.pl/articles/173268.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
photonic crystal
optical logics
XOR gate
XNOR gate
Kerr effect
Opis:
Optical logic gates are very important structures required for creating all-optical digital signal processing systems. Optical XOR and XNOR gates can be used for designing optical adders and optical comparators, respectively. In this paper we proposed a novel structure which can be used for simultaneous implementation of optical XOR and XNOR logic gates. The proposed structure was designed using a nonlinear photonic crystal ring resonator. The delay time for XOR and XNOR gates are 1.7 and 3 ps, respectively.
Źródło:
Optica Applicata; 2019, 49, 2; 283-291
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model of a sliding gate controlled by a PLC driver
Autorzy:
Majcher, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/376511.pdf
Data publikacji:
2019
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
PLC
sliding gate
visualisation
Opis:
Due to low costs, PLC controllers are used not only in technological processes but also in everyday life. The article presents the possibility of using a PLC controller to control the operation of a sliding gate. For this purpose, a design was created and a sliding gate model made controlled with a Siemens S7-1200 PLC controller. This model is used to develop various gate control algorithms, especially for appropriate gate protection against crushing or uncontrolled closing. In addition, this model is connected via the Internet to a stand equipped with the SCADA application. The iFix 5.8 PL application was used to visualise the operation of the door, which, by means of a communication driver, allows the elevator operation to be controlled remotely. In addition, elements are shown in a graphic way, whereby it is possible to assess the position of the gate.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2019, 99; 191-199
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Projektowanie zamknięć hydrotechnicznych według Eurokodów na przykładzie klapy soczewkowej
Design of hydraulic gate (flap gate) according to European standards
Autorzy:
Machowska, A.
Kosiński, P.
Powiązania:
https://bibliotekanauki.pl/articles/105305.pdf
Data publikacji:
2017
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
zamknięcie hydrotechniczne
klapa soczewkowa
oddziaływania
parcie wody
hydraulic gate
actions
flap gate
water pressure
Opis:
W artykule przedstawiono wyniki analizy oddziaływań działających na zamknięcie hydrotechniczne w postaci klapy soczewkowej zainstalowanej na segmencie podnoszonym oraz nośności klapy pracującej jako ustrój cienkościenny o profilu zamkniętym. Obliczenia wykonano według obowiązujących norm – Eurokodów (PN-EN 1990, PN-EN 1993-1-1, PN-EN 1993-1-3, PN-EN 1993-1-7 oraz PN-EN 1993-4), oraz wycofanych norm (PN-B-03200 i PN-B-03203). Przeanalizowano wartości efektów oddziaływań dla sześciu położeń klapy. Analiza wyników wskazuje, że wartości oddziaływań wyznaczone według Eurokodów są wyższe dla warunków eksploatacyjnych i znacząco niższe dla warunków wyjątkowych pracy zamknięcia w porównaniu do oddziaływań wyznaczonych zgodnie z zasadami przedstawionymi w wycofanej normie. Wskazuje to na konieczność wydania opracowania do norm obowiązujących, które regulowałoby wartości współczynników częściowych stosowanych w projektowaniu zamknięć hydrotechnicznych, gdyż te podane w Eurokodach nie odzwierciedlają charakteru obciążenia działającego na budowle wodne. W dalszej części artykułu przedstawiono wyniki obliczeń statyczno - wytrzymałościowych dla najbardziej niekorzystnego przypadku obciążenia. Analiza wyników weryfikacji stanu granicznego nośności klapy soczewkowej wskazuje, że można bezpiecznie zaprojektować stalowe zamknięcie wodne bazując na zapisach zawartych w normach zharmonizowanych. Jest to proces pracochłonny, a największą trudność stanowi ustalenie obliczeniowych wartości efektów oddziaływań. Ze względu na specyfikę konstrukcji stalowych zamknięć wodnych i warunków ich pracy niezbędne jest opracowanie przepisów regulujących zasady jakie należy zachować podczas ich projektowania.
The article presents the results of calculations concerning actions on hydraulic gate: flap gate installed on a segment and resistance of flap gate designed as thin-walled cross-section. The calculations were conducted accordingly to valid standards PN-EN 1990, PN-EN 1993-1-1, PN-EN 1993-1-3, PN-EN 1993-1-7 and PN-EN 1993-4 and to standard which was withdrawn – PN-B- 03200 and PN-B-03203. The values of actions were calculated for six possible flap gate positions. The analysis of obtained results indicates that the values of impacts calculated acc. to European standards for common operational conditions are overestimated and values calculated for accidental design conditions are significantly underestimated. It indicates the necessity of implementing the regulations concerning the values of partial factors used in design process of hydraulic gates, because the factors implemented in Eurocodes do not reflect the character of actions on hydraulic structures. Furthermore in the article the calculations concerning mechanical resistance of elements of flap gate are presented. Analysis of obtained results reveals that a hydraulic gate such as flap gate may be designed using rules presented in Eurocodes, and the difficulty is in establishing the design values of actions’ effects. Due to specificity and operating conditions of hydraulic gates it is necessary to elaborate the document concerning the rules which must be fulfilled in design process.
Źródło:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2017, 64, 3/I; 123-139
2300-5130
2300-8903
Pojawia się w:
Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Z zachwytem. O „Drugiej bramie” Haliny Górskiej
.With Amazement. On Halina Górskas “The Second Gate”
Autorzy:
Graczyk, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/545570.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Gdański. Wydział Filologiczny
Tematy:
Halina Górska
“The Second Gate”
Opis:
Review of the book “The Second Gate” by Halina Górska
Źródło:
Jednak Książki. Gdańskie Czasopismo Humanistyczne; 2017, 7; 157-164
2353-4699
Pojawia się w:
Jednak Książki. Gdańskie Czasopismo Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Special size effects in advanced single-gate and multiple-gate SOI transistors
Autorzy:
Ohata, A.
Ritzenthaler, R.
Faynot, O.
Cristoloveanu, S.
Powiązania:
https://bibliotekanauki.pl/articles/308994.pdf
Data publikacji:
2007
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
MOSFET
SOI
ultra-thin silicon
multiple-gate
mobility
coupling effect
thin gate oxide
gate-induced floating body effect
drain-induced virtual substrate biasing
Opis:
State-of-the-art SOI transistors require a very small body. This paper examines the effects of body thinning and thin-gate oxide in SOI MOSFETs on their electrical characteristics. In particular, the influence of film thickness on the interface coupling and carrier mobility is discussed. Due to coupling, the separation between the front and back channels is difficult in ultra-thin SOI MOSFETs. The implementation of the front-gate split C-V method and its limitations for determining the front- and back-channel mobility are described. The mobility in the front channel is smaller than that in the back channel due to additional Coulomb scattering. We also discuss the 3D coupling effects that occur in FinFETs with triple-gate and omega-gate configurations. In low-doped or tall fins the corner effect is suppressed. Narrow devices are virtually immune to substrate effects due to a strong lateral coupling between the two lateral sides of the gate. Short-channel effects are drastically reduced when the lateral coupling screens the drain influence.
Źródło:
Journal of Telecommunications and Information Technology; 2007, 2; 14-24
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Konstrukcja i oprogramowanie napędu bramowego zintegrowanego z inteligentnym budynkiem
The construction and software of the gate drive integrated with the intelligent building
Autorzy:
Horyński, M. B.
Powiązania:
https://bibliotekanauki.pl/articles/252037.pdf
Data publikacji:
2015
Wydawca:
Instytut Naukowo-Wydawniczy TTS
Tematy:
automatyka
sterowanie
brama
automation
control
gate
Opis:
Głównym celem i osiągnięciem tej pracy jest zaprojektowanie i zintegrowanie napędu bramy inteligentnego budynku z instalacją automatyki budynku. Opracowano ponadto stanowisko badawcze, które pozwala na zbadanie różnych opcji sterowania napędem bramowym.
The main purpose and achievements of this work is to design and integrate gate drive with the intelligent building installation based on the selected automation and control electronics building integration. Thanks to the project, one can easily get a lot of options to control a gate.
Źródło:
TTS Technika Transportu Szynowego; 2015, 12; 2586-2589
1232-3829
2543-5728
Pojawia się w:
TTS Technika Transportu Szynowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fortyfikacje miejskie Raciborza w świetle badań archeologicznych
Town fortifications of Racibórz in the light of the archeological research
Autorzy:
Turakiewicz, Romuald
Powiązania:
https://bibliotekanauki.pl/articles/530924.pdf
Data publikacji:
2019-09-10
Wydawca:
Państwowa Wyższa Szkoła Zawodowa w Raciborzu
Tematy:
archeological research
medieval
fortifications
town gate
Opis:
Main point of The article is to gather and sum up knowledge about Racibórz fortifications considering results of archeological research. Town battlements in Racibórz were built in the late medieval. To present day only small part of them has been preserved, which would define as 8% original medieval defensive walls. Main objective of the archeological research were thorough localization of fortifications line (gates, towers and battlements). Research work envisages recognition tectonics, construction and building materials of defensive walls also relics of town gates and towers, establish construction battlements in relation to level of original soil and to stratification of colonization layers within the city limits. There have been established many of archeological excavations, in order to perform these intentions, which enables until now to make a discovery relics of two from three town gates (Odrzańska Gate and Great Gate), one of the destroyed tower and more than 70 meters of defensive walls.
Źródło:
Eunomia – Rozwój Zrównoważony – Sustainable Development; 2019, 1(96); 63-84
1897-2349
2657-5760
Pojawia się w:
Eunomia – Rozwój Zrównoważony – Sustainable Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Composition and electrical properties of ultra-thin SiOxNy layers formed by rf plasma nitrogen implantation/plasma oxidation processes
Autorzy:
Bieniek, T.
Beck, R. B.
Jakubowski, A.
Konarski, P.
Ćwil, M.
Hoffman, P.
Schmeißer, D.
Powiązania:
https://bibliotekanauki.pl/articles/308689.pdf
Data publikacji:
2007
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
CMOS
gate stack
oxynitride
plasma implantation
Opis:
Experiments presented in this work are a summary of the study that examines the possibility of fabrication of oxynitride layers for Si structures by nitrogen implantation from rf plasma only or nitrogen implantation from rf plasma followed immediately by plasma oxidation process. The obtained layers were characterized by means of: ellipsometry, XPS and ULE-SIMS. The results of electrical characterization of NMOS Al-gate test structures fabricated with the investigated layers used as gate dielectric, are also discussed.
Źródło:
Journal of Telecommunications and Information Technology; 2007, 3; 9-15
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modal Analysis of a Steel Radial Gate Exposed to Different Water Levels
Autorzy:
Brusewicz, K.
Sterpejkowicz-Wersocki, W.
Jankowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/241116.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
modal analysis
radial gate
dynamic loads
Opis:
With the increase in water retention needs and planned river regulation, it might be important to investigate the dynamic resistance of vulnerable elements of hydroelectric power plants, including steelwater locks. The most frequent dynamic loads affecting hydroengineering structures in Poland include vibrations caused by heavy road and railway traffic, piling works and mining tremors. More destructive dynamic loads, including earthquakes, may also occur in our country, although their incidence is relatively low. However, given the unpredictable nature of such events, as well as serious consequences they might cause, the study of the seismic resistance of the steel water gate, as one of the most vulnerable elements of a hydroelectric power plant, seems to be important. In this study, a steel radial gate has been analyzed. As far as water gates are concerned, it is among the most popular solutions because of its relatively small weight, compared to plain gates. A modal analysis of the steel radial gate was conducted with the use of the FEM in the ABAQUS software. All structural members were modelled using shell elements with detailed geometry representing a real structure.Water was modelled as an added mass affecting the structure. Different water levels were used to determine the most vulnerable state of the working steel water gate. The results of the modal analysis allowed us to compare the frequencies and their eigenmodes in response to different loads, which is one of the first steps in researching the dynamic properties of steel water gates and their behaviour during extreme dynamic loads, including earthquakes.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2017, 64, 1; 37-47
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance Comparison of Stacked Dual-Metal Gate Engineered Cylindrical Surrounding Double-Gate MOSFET
Autorzy:
Dargar, Abha
Srivastava, Viranjay M.
Powiązania:
https://bibliotekanauki.pl/articles/1844602.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
short-channel effects
metal oxide semiconductor
transistor
cylindrical surrounding double-gate
dual-material gate
microelectronics
nanotechnology
Opis:
In this research work, a Cylindrical Surrounding Double-Gate (CSDG) MOSFET design in a stacked-Dual Metal Gate (DMG) architecture has been proposed to incorporate the ability of gate metal variation in channel field formation. Further, the internal gate's threshold voltage (VTH1) could be reduced compared to the external gate (VTH2) by arranging the gate metal work-function in Double Gate devices. Therefore, a device design of CSDG MOSFET has been realized to instigate the effect of Dual Metal Gate (DMG) stack architecture in the CSDG device. The comparison of device simulation shown optimized electric field and surface potential profile. The gradual decrease of metal work function towards the drain also improves the Drain Induced Barrier Lowering (DIBL) and subthreshold characteristics. The physics-based analysis of gate stack CSDG MOSFET that operates in saturation involving the analogy of cylindrical dual metal gates has been considered to evaluate the performance improvements. The insights obtained from the results using the gate-stack dual metal structure of CSDG are quite promising, which can serve as a guide to further reduce the threshold voltage roll-off, suppress the Hot Carrier Effects (HCEs) and Short Channel Effects (SCEs).
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 1; 29-34
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatyczna identyfikacja osób z wykorzystaniem nowoczesnych pasywnych znaczników RFID z układem Impinj Monza R6
Automatic identification of people using passive RFID system with modern Impinj Monza R6 tags
Autorzy:
Grabia, M.
Markowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/316927.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
RFID
częstotliwość UHF
bramka
UHF frequency
gate
Opis:
Artykuł opisuje wyniki badań możliwości zastosowania technologii RFID do identyfikacji osób z wykorzystaniem nowoczesnych, pasywnych znaczników RFID z układem Impinj Monza R6. Omówiono przebieg badań dynamicznych, w trakcie których znaczniki umieszczane były w różnych miejscach na ciele człowieka, w celu sprawdzenia możliwości ich zainstalowania np. w formie karty, biletu, czy identyfikatora. Uzyskane wyniki porównano z wynikami testów przeprowadzonych z wykorzystaniem poprzednich generacji pasywnych znaczników RFID (Impinj, Raflatec oraz UPM) oraz różnych zestawów anten oraz czytników.
The aim of the study was to determine the suitability of passive RFID system operating in the UHF band to automatically identify people. Research conducted in the measuring system simulating office environment included the verification of the reading effectiveness of selected transponders of different geometric shapes, equipped with widely used Monza 4 chips and the latest generation of Monza R6 chips. Test scenarios included the placement of the markers, like identifiers in the form of plastic cards, in the typical places on human body - in front and back pockets and chest (for the identifier in the form of pendant). Situation with the helmet equipped in the RFID tag was also examined. The test results clearly showed the superiority of the transponder systems of Monza R6, which reading performance, even for the registration of the groups of people, was close to one hundred percent. The achieved results allows to create in the future an effective solution for automatic people identification based on the radio system working in UHF frequency.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2016, 17, 6; 1348-1351
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
La fractocomposition en français et en tchèque : le cas de ‑gate
Fractocomposition in French and Czech languages: the case of ‑gate
Autorzy:
Mudrochová, Radka
Koláříková, Dagmar
Powiązania:
https://bibliotekanauki.pl/articles/43665634.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
fractocomposition
blends
SketchEngine
comparison
French
Czech
‑gate
Opis:
The objective of this contribution is to contrastively analyze the currency of words formed by the frac- tolexeme -gate in French and Czech languages. Before presenting the results of our research that relies especially on data derived from the SketchEngine (Czech Web 2017; French Web 2017) corpora, we find it necessary to address theoretical questions to frame the concept of fractocomposition in current linguistic studies. We have borrowed the term fractocomposition from the French linguist Jean-François Sablay- rolles (2019, p. 149), who defines it as a case of compounds “one of whose elements is a fractolexeme,   a fragment of lexie which is valid for the entire lexie”. However, in our discussion we note also other terms that are also used to denote the same concept.
Źródło:
Studia Romanica Posnaniensia; 2022, 49, 4; 89-102
0137-2475
2084-4158
Pojawia się w:
Studia Romanica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The phenomenon of the filter bubble as a threat to freedom on the Web
Autorzy:
Jakub, Czopek,
Powiązania:
https://bibliotekanauki.pl/articles/890405.pdf
Data publikacji:
2020-10-12
Wydawca:
Akademia Pedagogiki Specjalnej im. Marii Grzegorzewskiej. Wydawnictwo APS
Tematy:
filter bubble
cyber-security
gate-keeping
personalization
Opis:
The internet is usually presented as a medium that gives unlimited freedom to the user. The main purpose of the article is to characterize the concept of the filter bubble. It describes the mechanism that can significantly affect the type of content that Internet users encounter on the Web. By limiting content to those that are compatible with the worldview of the person seeking information, the filter bubble can significantly limit the freedom of seeking information. The article also presents several ways that can limit the negative impact of this phenomenon.
Źródło:
International Journal of Pedagogy, Innovation and New Technologies; 2020, 7(1); 11-15
2392-0092
Pojawia się w:
International Journal of Pedagogy, Innovation and New Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Семантическое развитие концепта СКАНДАЛ и его деривационные маркеры в русских и польских медиатекстах
On Semantic Development of the Concept SCANDALand its Derivative Markers in Modern Russian and Polish Languages
Autorzy:
Koriakowcewa, Elena
Powiązania:
https://bibliotekanauki.pl/articles/1070576.pdf
Data publikacji:
2020-12-01
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
concept
semantics
-gate suffixoid
mass media discourse
Opis:
This article is devoted to the tendencies in the semantics of words скандалand skandal and the derivation with the help of the -gate suffixoid in the modern Russian and Polish mass media discourse being the main environment for the emergence and spreading of scandals. The modern scandal becomes an attention attracting strategy. As a result, new semantic features and a positive connotation appear in the semantics of the words скандал and skandal. The -gate suffixoid is used to derive the terms that may suggest unethical behaviour and a cover-up of scandal, particularly in politics and government.
Źródło:
Acta Neophilologica; 2020, XXII/2; 55-67
1509-1619
Pojawia się w:
Acta Neophilologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Quantum Computer - What Does It Means?
Autorzy:
Kosiński, J.
Powiązania:
https://bibliotekanauki.pl/articles/92895.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
qubit
quantum gate
quantum algorithm
quantum computation
Opis:
In a classical measurement the Shannon information is a natural measure of our ignorance about properties of a system. There, observation removes that ignorance in revealing properties of the system which can be considered to preexist prior to and independent of observation. Because of the completely different root of a quantum measurement as compared to a classical measurement, conceptual difficulties arise when we try to define the information gain in a quantum measurement using the notion of Shannon information. In contrast to classical measurements, quantum measurements, with very few exceptions, cannot be claimed to reveal a property of the individual quantum system existing before the measurement is performed. A mathematical theory of computation that is based on quantum physics is bound to be different. They are the analogues for quantum computers to classical logic gates for conventional digital computers. Although quantum gates work on qubits in a much different fashion from standard electronic circuits, they only differ in their basic effects in one sense: reversibility.
Źródło:
Studia Informatica : systems and information technology; 2007, 1(8); 77-96
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Realization of controlled NOT quantum gate via control of a two spin system
Autorzy:
Twardy, M.
Olszewski, D.
Powiązania:
https://bibliotekanauki.pl/articles/201766.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quantum gates control
CNOT gate
quantum control
Opis:
Physical realization of controlled NOT quantum gate is addressed as a control problem for the system of two interacting spins. The control is carried out by magnetic pulses acting on the spins. The shapes of the appropriate magnetic pulses are computed.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 2; 379-390
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of all-optical logic XOR gate based on linear optical amplifier cross-gain modulation
Autorzy:
Li, X
Jin, J
Li, H
Zhang, Q
Powiązania:
https://bibliotekanauki.pl/articles/174514.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
linear optical amplifier
cross-gain modulation
XOR gate
Opis:
All-optical logic is the key to future high speed and large capacity optical transmission, the realization of optical packet switching and optical computing, and it has a very profound influence on the development of future optical communication. A linear optical amplifier as a new type of semiconductor optical amplifier, which has a good gain characteristic, has better signal performance than a traditional semiconductor optical amplifier in the wavelength conversion. This article presents a numerical simulation model of all-optical logic XOR gate and its logic operation based on cross-gain modulation of linear optical amplifier, and has also completed some of the basic logic operations, including AND, OR, NOT operations.
Źródło:
Optica Applicata; 2015, 45, 4; 447-457
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An all optical majority gate using nonlinear photonic crystal based ring resonators
Autorzy:
Poursaleh, Amir
Andalib, Alireza
Powiązania:
https://bibliotekanauki.pl/articles/175120.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
majority gate
photonic crystal
Kerr effect
ring resonator
Opis:
Optical logics will play a crucial role in the next generation all optical data processing networks. Therefore an all optical majority gate will be designed by using nonlinear photonic crystal ring resonators. For realizing the proposed structure we need three nonlinear resonant rings. In order to make nonlinear resonant rings, we used chalcogenide glass as the dielectric material for the dielectric rods. The output port of the proposed structure will be active only when two or three logic input ports are active. The rise and fall time values of the proposed structure are about 2 and 1 ps, respectively. The total footprint of the proposed structure is about 1287 μm2.
Źródło:
Optica Applicata; 2019, 49, 3; 487-498
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biblijny motyw bramy. Jezus jako brama w J 10, 7.
Autorzy:
Walczak, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/571332.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Papieski Jana Pawła II w Krakowie
Tematy:
gate
door
entrance
gateway
brama
drzwi
wejście
przejście
Opis:
To call himself Jesus used few terms, one of them is ‟the gate” (θύρα; J 10:7.9). First part of an article presents the biblical gate’s terminology (שַׁעַר, פֶּתַח, דֶּלֶת, πύλη, θύρα, εἴσοδος, πυλών) and next describes the function of an ancient gate. Numerous functions of a gate and its cultural meaning help in the interpretation of Jesus’s words. Jesus named as the gate means that he is the gateway to the safe area for sheep. He also appears as the one who safeguards the needs of those who follow him, and also represents them.
Jednym z samookreśleń Jezusa, występującym w Ewangelii jest θύρα (J 10, 7.9), które oznacza m.in. bramę. Pierwsza część artykułu prezentuje biblijną terminologię używaną do jej opisu (שַׁעַר, פֶּתַח, דֶּלֶת, πύλη, θύρα, εἴσοδος, πυλών), aby następnie przejść do analizy funkcji z nią związanych. Liczne bowiem funkcje bramy i jej kulturowe znaczenie pomagają w interpretacji tych słów Jezusa. Jezus określa siebie jako bramę, ponieważ daje bezpieczeństwo swoim owcom możliwość przejścia w bezpieczną sferę. W Nim dokonują się prawdziwe sądy oraz liturgia. Chrystus jawi się również jako Ten, który jest zabezpieczeniem potrzeb tych, którzy za Nim idą, a także reprezentuje ich, jako głowa stada.
Źródło:
Polonia Sacra; 2020, 24, 1
1428-5673
Pojawia się w:
Polonia Sacra
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lintel decoration types from the Temple of Hatshepsut at Deir el-Bahari and their meaning
Autorzy:
Madej, Adrianna
Powiązania:
https://bibliotekanauki.pl/articles/2033215.pdf
Data publikacji:
2021-12-31
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
lintel
decoration
gate
Hatshepsut temple
Deir el-Bahari
Opis:
Examination of the set of preserved gate lintels from the Temple of Hatshepsut in Deir el-Bahari has revealed two models of the iconographic decoration: one that emphasizes pictorial content in the form of scenes of a cultic or symbolic nature, with inscriptions playing merely a complementary role, and the other based on the textual message alone. The use of a given model of lintel decoration appears to be a measure either of the function of the room or, more broadly, of the space, accessed through the gate, or of the context of the wall decoration around the entrance.
Źródło:
Polish Archaeology in the Mediterranean; 2021, 30(1); 143-156
1234-5415
Pojawia się w:
Polish Archaeology in the Mediterranean
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anthroponyms of the Polish-Czechborder area (The Moravian Gate)
Autorzy:
Mieczysław, BALOWSKI
Powiązania:
https://bibliotekanauki.pl/articles/909291.pdf
Data publikacji:
2020-09-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Czech
Polish
comparative linguistics
anthroponyms
Moravian Gate
multiculturalism
Opis:
The author describes in the article project of researching the anthroponymy of the Polish-Czech borderland on the section of the Moravian Gate (Gorzyce – Krzyżanowice municipalities on the Polish side and Hať – Hilheřovice – Bohumín municipalities on the Czech side). The described borderland belongs to the so-called transitional borders, whose characteristic feature is the mixing of the population of two or more nations (or ethnic groups), and the effect of it is movement of the population in this area. As a result, the so-called third culture has developed, which had a major impact on the shape of names of the inhabitants, as well as on the choices of names for their children. Another factor in changing the form of surnames is the interference of an official who has often changed the spelling form of the surname in accordance with the language norm in force in his native language.
Źródło:
Bohemistyka; 2020, 4; 587-600
1642-9893
Pojawia się w:
Bohemistyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Projekt i implementacja sterowników karty graficznej VGA w układach FPGA
Design and implementation of VGA graphics card in FPGA technology
Autorzy:
Niemojewski, M.
Sapiecha, P.
Powiązania:
https://bibliotekanauki.pl/articles/155616.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
VGA
Video Graphics Adapter
FPGA
field-programmable gate array
Altera
Stratix II
Lancelot VGA
field programmable gate array (FPGA)
Opis:
Celem pracy jest zaprojektowanie interfejsu graficznego i tekstowego umożliwiającego prezentacje informacji na ekranie monitora VGA wykorzystując technologie logicznych układów programowalnych, napisanie sterowników sprzętu dla systemu operacyjnego žClinux oraz przeprowadzenie i analiza wyników testów uzyskanego rozwiązania ze względu na parametry: prędkość rysowania obrazu, stopień obciążenia pamięci.
The paper presents design and implementation of the text and graphics interface for FPGA based system. The article describes VHDL module and video graphics driver for žClinux operating system. The article describes tests of the device. The paper presents possible future work for the design.
Źródło:
Pomiary Automatyka Kontrola; 2007, R. 53, nr 7, 7; 81-83
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of electro-thermal stress of IGBT devices
Autorzy:
Shaban, M. A.
Ettomi, Y.
Powiązania:
https://bibliotekanauki.pl/articles/377956.pdf
Data publikacji:
2013
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
electro-thermal stress
IGBT
Insulated Gate Bipolar Transistor
Opis:
The aim of this paper is to present a new approach which consists to correlate or coupled the functional and electrical stress with temperature. This approach can be extremely useful in the predicting the stressing effect and the impact of IXGH-IGBT I-V characteristics on circuit degradation. Moreover, this new approach significantly improves such parameters likes (threshold voltage Vth, collector saturation current, the stress and enhanced collector leakage current) and provides new capability for use this power device IXGH-IGBT in an actual circuit environment and modules. We also explain the physical reasons behind the improvement obtained using functional electrical stress on the IGBTs for IXYS constructor with temperature. Moreover, the forward blocking capability of IXGH-IGBT under a coupled Functional - Electro stress at high temperature was analyzed using simulation. This paper gives a straight comparison in term of the stress for improving the switching speed of IGBT device. This study is essential to ensure product reliability and to the evaluation of hot carrier reliability in the early stages. Furthermore, our reliability study permits us to improve the implantation of the device in a circuit, as well as its use in industrial operating conditions. The need for good simulator (Spice, Spice) to carry out a reliability study is pointed out in this paper.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2013, 76; 275-284
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A virtual laboratory for radiotracer and sealed-source applications in industry
Autorzy:
Mohammed, Mohammed Siddig H.
Banoqitah, Essam M.
Elmoujarkach, Ezzat
Alhawsawi, Abdulsalam M.
Djouider, Fathi
Powiązania:
https://bibliotekanauki.pl/articles/1841639.pdf
Data publikacji:
2021
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
sealed sources
radiotracers
industrial gamma tomography
simulation
GATE
Opis:
Radioactive sealed sources and radiotracer techniques are used to diagnose industrial process units. This work introduces a workspace to simulate four sealed sources and radiotracer applications, namely, gamma scanning of distillation columns, gamma scanning of pipes, gamma transmission tomography, and radiotracer fl ow rate measurements. The workspace was created in Geant4 Application for Tomographic Emission (GATE) simulation toolkit and was called Industrial Radioisotope Applications Virtual Laboratory. The fl exibility of GATE and the fact that it is an open-source software render it advantageous to radioisotope technology practitioners, educators, and students. The comparison of the simulation results with experimental results that are available in the literature showed the effectiveness of the virtual laboratory.
Źródło:
Nukleonika; 2021, 66, 1; 21-27
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determinants of cargo flow modeling in container terminals in conditions of „extended pre–gate”
Autorzy:
Krośnicka, K.
Smolarek, L.
Powiązania:
https://bibliotekanauki.pl/articles/2069429.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
container terminals
extended pre-gate
cargo flow modelling
Opis:
The paper considers determinants of construction of the mathematical model describing in a macro scale a stream of cargo, flowing through a container terminal equipped with an extended pre-gate. Accordingly, the work analyzes the handling points and channels of container’s flows at a hypothetical terminal, as well as opportunities allowing to increase the flow’s efficiency by changing the random stream of arriving trucks and trains into the determined one.
Źródło:
Journal of Polish Safety and Reliability Association; 2014, 5, 1; 119--124
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A current-source concept for fast and efficient driving of silicon carbide transistors
Autorzy:
Rąbkowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/141047.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
silicon carbide transistors
gate drivers
current-source
switching process
Opis:
The paper discusses the application of the current-source concept in the gate drivers for silicon carbide transistors. There is a common expectation that all SiC devices will be switched very fast in order to reach very low values of switching energies. This may be achieved with the use of suitable gate drivers and one of possibilities is a solution with the current source. The basic idea is to store energy in magnetic field of a small inductor and then release it to generate the current peak of the gate current. The paper describes principles of the current-source driver as well as various aspects of practical implementation. Then, the switching performance of the driven SiC transistors is illustrated by double-pulse test results of the normally-ON and normally-OFF JFETs. Other issues such as problem of the drain-gate capacitance and power consumption are also discussed on the base of experimental results. All presented results show that the currentsource concept is an interesting option to fast and efficient driving of SiC transistors.
Źródło:
Archives of Electrical Engineering; 2013, 62, 2; 333-343
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Challenges in ultrathin oxide layers formation
Autorzy:
Beck, R.B.
Jakubowski, A.
Łukasiak, L.
Korwin-Pawłowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/307646.pdf
Data publikacji:
2001
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
silicon technology
oxidation
PECVD
RTO
gate oxide
ultrathin
layers
Opis:
In near future silicon technology cannot do without ultrathin oxides, as it becomes clear from the "Roadmap'2000". Formation, however, of such layers, creates a lot of technical and technological problems. The aim of this paper is to present the technological methods, that potentially can be used for formation of ultrathin oxide layers for next generations ICs. The methods are briefly described and their pros and cons are discussed.
Źródło:
Journal of Telecommunications and Information Technology; 2001, 1; 27-34
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Baszta Bramy Lubawskiej w Nowym Mieście Lubawskim w świetle nowych badań
The tower of the Lubawska Gate in Nowe Miasto Lubawskie in the light of new research
Autorzy:
Bański, R.
Powiązania:
https://bibliotekanauki.pl/articles/218200.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Konserwatorów Zabytków
Tematy:
baszta
Brama Lubawska
Nowe Miasto Lubawskie
Lubawska Gate
tower
Opis:
Baszta Bramy Lubawskiej w Nowym Mieście Lubawskim (d. Neumark) powstała w II połowie XIV wieku. Jak dotychczas zabytek ten nie był objęty zainteresowaniem badawczym, chociaż posiada interesującą ikonografię z XVII i XVIII wieku obrazującą jego przekształcenia. Zmiany, jakie nastąpiły w XVIII wieku, utrwalone zostały w XIX wieku, kiedy to baszta została zaadaptowana na sąd, więzienie oraz strażnicę straży pożarnej. Obecnie baszta wykorzystywana jest jako siedziba ZHP. Potrzeba naprawy dachu pozwoliła na wykonanie badań architektonicznych. Rezultatem badań stało się odkrycie reliktów pierwotnej gotyckiej konstrukcji dachu. Przekaz ikonograficzny jest zgodny z rozpoznanymi elementami, tym samym potwierdzone zostało unikatowe rozwiązanie szczytu baszty z 4 gankami z każdej strony baszty. Tego typu rozwiązanie nie jest typowe w architekturze gotyckiej. Wykonana analiza wykazała, iż podobna forma szczytu baszty znana jest z Rothenburga we Frankonii. Istnienie baliwatu Zakonu Krzyżackiego we Frankonii oraz migracja osadnicza z tych terenów do Państwa Zakonnego jest potwierdzona na II połowę XIV wieku. Poświadczałoby to proweniencję tego rozwiązania. W ramach projektu naprawy dachu baszty zaproponowano poprawę estetyczną istniejących zniszczonych szczytów. Mimo ograniczonych środków na remont opracowany projekt konserwatorski przywracał obecność formy ganków, choć jedynie na istniejących obecnie szczytach. Działanie takie służyłoby przywróceniu w społecznej świadomości faktu zachowania w Nowym Mieście Lubawskim oryginalnego i unikatowego zabytku. Decyzją Wojewódzkiego Konserwatora Zabytków zakres prac ograniczono jedynie do naprawy dachu. Należy oczekiwać, iż w przyszłości wykonana zostanie pełna rekonstrukcja szczytu baszty, a przeprowadzone badania architektoniczne będą jej mocną podstawą.
The tower of the Lubawska Gate in Nowe Miasto Lubawskie (formerly Neumark) was erected in the 2nd half of the 14th century. So far the monument has not been of much scientific interest, although it has an interesting iconography from the 17th and 18th century reflecting its transformations. Alterations which took place in the 18th century were preserved in the 19th century when the tower was adapted to house a court of law, prison and a fire brigade headquarters. Currently the tower is used for the Polish Scouts headquarters. The need to repair the roof allowed for conducting architectonic research, the result of which was discovering the relics of the original Gothic roof construction. The iconographic record agrees with the identified elements, thus confirming the unique solution of the tower top with 4 galleries on each side of the tower. That type of solution is not typical for Gothic architecture. The conducted analysis revealed that a similar form of the tower top is known from Rothenburg in Franconia. The existence of the Teutonic Knights' bailiwick in Franconia and settlement migration from that region to the State of the Teutonic Order has been confirmed for the 2nd half of the 14th century, which would confirm the provenance of the solution. Within the project of the tower roof repair it was suggested that the aesthetics of the existing damaged tops could be improved. Despite limited financial means for renovation, the prepared conservation project restored the form of galleries, but only on the currently existing tops. Such approach would serve to restore to the social conscience the fact of preserving an original and unique monument in Nowe Miasto Lubawskie. By the decision of the Voivodeship Monument Conservator the range of work was limited merely to repairing the roof. It is to be expected that a full reconstruction of the tower top will be carried out in the future, and the conducted architectonic research will serve as its basis.
Źródło:
Wiadomości Konserwatorskie; 2011, 30; 43-57
0860-2395
2544-8870
Pojawia się w:
Wiadomości Konserwatorskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydraulic analysis of gate valve using computational fluid dynamics (CFD)
Autorzy:
Žic, Elvis
Banko, Patrik
Lešnik, Luka
Powiązania:
https://bibliotekanauki.pl/articles/118702.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
gate valve
hydrodynamic analysis
CFD
Ansys Workbench
software package
Opis:
As a very important element of most water supply systems, valves are exposed to the effects of strong hydrodynamic forces. When exposed to large physical quantities, the valve and piping can be damaged, which could endanger the performance of a water supply system. This is the main reason why it is necessary to foresee and determine the maximum values of velocity, pressure and other physical quantities that can occur in the system under certain conditions. Predicting extreme conditions allows us to correctly size the valve for the expected conditions to which the valve might be exposed, which is also the main objective of this paper. One of the methods for predicting and determining extreme values on a valve is to perform a simulation with computational fluid dynamics (CFD). This is exactly the method used in the preparation of this paper with the aim of gaining insight into the physical magnitudes for models of gate valves positioned inside a pipe under characteristic degrees of valve closure. The Ansys CFX 19.1 and Ansys Fluent 19.1 software was used to simulate the hydrodynamic analysis and obtain the required results. The hydrodynamic analysis was performed for four opening degrees of gate valve
Źródło:
Scientific Review Engineering and Environmental Sciences; 2020, 29, 3; 275-288
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Communication model of measuring points using a RFID gate in production logistics
Autorzy:
Łobaziewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/409338.pdf
Data publikacji:
2017
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
selective RFID gate
measuring points
production system
data management
Opis:
An infrastructure of modem production systems is based on technologically advanced machines and devices. One of the important issues in this aspect is to ensure the smooth communication among elements of the industrial automation infrastructure to ensure the quality, stability and safety of a production system as well as the right identification of resources using in production processes. The article presents a model of communication between measuring points in a production system with the use of a selective RFID gate as a result of R&D project made by DataConsult Sp. o.o. The model can be scaled and applied in different manufacturing companies. It is based on the assumption of parallel and independent communication on a configuration of industrial automation components that enable to use advanced and safety solutions of data collection, processing and sharing.
Źródło:
Research in Logistics & Production; 2017, 7, 4; 377-385
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of Inner Gate for CRIST Shipyard Dry Dock
Autorzy:
Bogdaniuk, M.
Górecki, Z.
Powiązania:
https://bibliotekanauki.pl/articles/258988.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
shipyard
dry dock
dock inner gate
FEM strength analysis
Opis:
The paper deals with a removable steel inner gate which was designed to separate two parts of a dry dock of about 70 m in width and 380 m in length. The gate allows for independent assembly of ship structures in the two separated parts of the dock. The fore part of the dock can be flooded while the after part is dry. The gate was designed by IDEK Company Ltd in 2011 and it was soon constructed and used by CRIST Shipyard in Gdynia.
Źródło:
Polish Maritime Research; 2012, 1; 52-56
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
All-Bootstrap Gate-Driver Supply System for a High-Voltage-Gain Resonant DC-DC Converter with Seven Switches
Autorzy:
Stala, Robert
Mondzik, Andrzej
Penczek, Adam
Waradzyn, Zbigniew
Skała, Aleksander
Powiązania:
https://bibliotekanauki.pl/articles/1193880.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
FPGA
DC-DC converter
digital control
gate driver circuit
Opis:
This paper presents the concept and implementation of an electronic system for a switched-capacitor DC-DC converter with high voltage gain. The converter consists of seven switches, five of which being controlled like high-side type. This paper presents a non-typical bootstrap-based gate-driver system so that the converter can run using a single voltage source. The converter requires a special switching pattern to drive seven switches in a steady state and also during the start-up of the converter and the regulation of the output voltage. Therefore, an FPGA-based digital control system is used with various switching algorithms and protection functions implemented. The presented converter is an autonomic device that taps the energy from the main input. Therefore, the electronic system of the converter is equipped with a self-supply system with a wide range of the input voltage. The parameters of the converter such as voltage gain, voltages and power ranges can be scalable for prospective applications with the proposed control system.
Źródło:
Power Electronics and Drives; 2020, 5, 40; 135-142
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Double-gate MOSFET Model Implemented in Verilog-AMS Language for the Transient Simulation and the Configuration of Ultra Low-power Analog Circuits
Autorzy:
Smaani, Billel
Meraihi, Yacin
Nafa, Fares
Benlatreche, Mohamed Salah
Akroum, Hamza
Latreche, Saida
Powiązania:
https://bibliotekanauki.pl/articles/2055208.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
double-gate MOSFET
compact model
ultra low power analog circuits
Opis:
This paper deals with the implementation of a DC and AC double-gate MOSFET compact model in the Verilog-AMS language for the transient simulation and the configuration of ultra low-power analog circuits. The Verilog-AMS description of the proposed model is inserted in SMASH circuit simulator for the transient simulation and the configuration of the Colpitts oscillator, the common-source amplifier, and the inverter. The proposed model has the advantages of being simple and compact. It was validated using TCAD simulation results of the same transistor realized with Silvaco Software.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 4; 609--614
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An efficient hardware implementation of a combinations generator
Autorzy:
Mazurkiewicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/298447.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
information technology
generator of combinations
field programmable gate array (FPGA)
Opis:
In this paper an area-efficient hardware implementation of a Bincombgen algorithm was presented. This algorithm generates all (n,k) combinations in the form of binary vectors. The generator was implemented using Verilog language and synthesized using Xilinx and Intel-Altera software. Some changes were applied to the original code, which allows our FPGA implementation to be more efficient than in the previously published papers. The usage of chip resources and maximum clock frequency for different values of n and k parameters are presented.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2017, 20(4); 405-413
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer simulation of the working cycle of a quantum controlled-NOT gate with two coupled quantum dots
Autorzy:
Moskal, S.
Bednarek, S.
Adamowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1964205.pdf
Data publikacji:
2004
Wydawca:
Politechnika Gdańska
Tematy:
semiconductor quantum dot
quantum date operation
controlled-NOT (CNOT) gate
Opis:
We discuss a possible realization of a quantum controlled-NOT gate with the use of two coupled quantum dots. Transitions between quantum states of a computational basis are driven by the microwave π-pulse. The parameters of the proposed nanodevice have been optimized in order to make the operation cycle of the gate as short as possible. Numerical solutions of the time-dependent Schrodinger equation allow us to simulate transitions between the quantum states which correspond to the subsequent stages of the gate's operation. The performed time-dependent simulations are a test of realizability of the quantum controlled-NOT gate in the nanodevice.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2004, 8, 4; 591-602
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The DDS Synthesizer (for FPGA Platform) for the Purpose of Research and Education
Autorzy:
Szomiński, Szymon
Plichta, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1373686.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
frequency synthesis
digital oscillations
field programmable gate arrays systems
FPGA
Opis:
The paper concerns the construction scheme of Direct Digital Synthesis (DDS) generator based on widely developed Field Programmable Gate Arrays (FPGA) technology. Firstly, the division of all generators is presented regarding the fact whether they generate sinusoidal or non-sinusoidal signals and whether the they have positive or negative feedback. Next chapter concerns how to generate frequency directly and indirectly synthesis and how to integrate these types of sytheses into the hybrid one. According to the blueprint, DDS generator if fully digital, which facilitates the control enabling to change almost at will the oscillation while the system works. Next chapters contain the conclusions and some proposals regarding practical application. DDS synthesizer has been made in accordance to the assumptions of the project, which was confirmed in practice. Control program enables us to fuse some measuring systems together into one, which facilitates simultaneous gathering of the data from several devices. Hence, the overall efficiency rises and the costs of carried out experiments are reduced. In the case of foreigners, it will be supplied by editors.
Źródło:
Schedae Informaticae; 2015, 24; 253-260
0860-0295
2083-8476
Pojawia się w:
Schedae Informaticae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method of Selection of dv/dt for EMI Current Ringing Attenuation
Autorzy:
Kempski, A.
Smolenski, R.
Powiązania:
https://bibliotekanauki.pl/articles/262775.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:
conducted
electromagnetic
interferences
flexible gate control
current ringing
DC Hopper
Opis:
In this paper the method of the selection of dv/dt for EMI current ringing attenuation has been presented. The mechanism for the attenuation is first identified using the theoretical approach. It is shown that the attenuation occurs for rise time of the voltage equal to the inverse of the frequency of current ringing. The concept has been experimentally verified in DC chopper and frequency converter arrangements. The proposed method of ringing attenuation can be applied in power converters with flexible gate control and can be also utilized in a wide area of electronic circuits with a trapezoidal excitation for a signal integrity improvement.
Źródło:
Electrical Power Quality and Utilisation. Journal; 2008, 14, 2; 19-24
1896-4672
Pojawia się w:
Electrical Power Quality and Utilisation. Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drzwi kościelne jako brama wiary
The church door as a gateway to faith
Autorzy:
Knapiński, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/2151026.pdf
Data publikacji:
2015-12
Wydawca:
Wyższe Seminarium Duchowne Diecezji Elbląskiej w Elblągu
Tematy:
Church art
architecture
church
door
gate
symbolism
iconography
Church Fathers
Opis:
Church doors are one of many symbolic elements of the church body. In the Old Testament it developed eschatological significance that have taken the gate, understood as the gates of hell. In this sense the church gate appear in the iconography of the Court of God. This symbolism was taken over by Christianity. Allegorical and symbolic significance of the church doors was lined in the writings of the apologists of the faith and the Church Fathers.
Źródło:
Studia Elbląskie; 2015, 16; 309-324
1507-9058
Pojawia się w:
Studia Elbląskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-scale simulation of hybrid silicon nano-electromechanical (NEM) information systems
Autorzy:
Mizuta, H.
Ramirez, M. A. G.
Tsuchiya, Y.
Nagami, T.
Sawai, S.
Oda, S.
Okamoto, M.
Powiązania:
https://bibliotekanauki.pl/articles/384267.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
multi-scale simulation
NEMS
suspended gate
non-volatile memory
phonon
Opis:
This paper presents emerging NEM hybrid systems for advanced information processing and describes our recent attempts of developing new multi-physics simulation technologies for these NEM systems at micro-, nano- and atomscales.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 58-61
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Marketing channel preference among smallholder cocoyam farmers in South Africa
Autorzy:
Nwafor, Christopher Ugochukwu
Powiązania:
https://bibliotekanauki.pl/articles/2033359.pdf
Data publikacji:
2021-12-28
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:
cocoyam
developing countries
farm-gate
market channel
regression
smallholder farmers
Opis:
Marketing channel choice makes important contributions to the incomes and other livelihood attributes among smallholder farmers in developing countries. Often considered from a number of perspectives, the dominant view articulated suggests an advantageous integration into formal market channels. This position is questioned as it has implications for smallholder farmers’ food security and rural incomes. Using a mixed methods approach, the study collected primary data from 174 smallholder farmers and applied both a descriptive and multinomial logit regression model to analyze factors contributing to cocoyam production and market channel choices among respondents in the study area. Findings indicate that financial returns and available markets were key factors in cocoyam production, while amount received was a driver of market channel choice among 89% of respondents who sold directly at farm-gate. Farmers’ age (p=0.044), household size (p=0.043), distance to market (p=0.021), additional income (p=0.017) and amount received (p=0.014) were significant variables (p<.05) in the determinants of market channel choice. The study recommended improving market information provision and strengthening farmer associations which will enable smallholder farmers in rural communities to make informed choices with respect to produce price, access other markets and consolidate their collective market bargaining position.
Źródło:
Journal of Agribusiness and Rural Development; 2021, 62, 4; 415-428
1899-5241
Pojawia się w:
Journal of Agribusiness and Rural Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pulse Sequence Shaper For Radiospectroscopy And Relaxation Methods In NQR
Autorzy:
Bobalo, Y.
Hotra, Z.
Hotra, O.
Politans’kyy, L.
Samila, A.
Powiązania:
https://bibliotekanauki.pl/articles/221794.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
NQR
pulse sequence
field programmable gate array (FPGA)
frequency synthesizer
Opis:
A pulse sequence shaper for the pursuance of the research using a wide spectrum of radiospectroscopy and relaxation methods in NQR is proposed. The distinctive feature of this product is its implementation with the application of a multi-functional programmable frequency synthesizer suitable for high-speed amplitude and phase manipulations.
Źródło:
Metrology and Measurement Systems; 2015, 22, 3; 363-370
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polyphase Comb Filter Based on Dispatching Input Bit-stream and Interlaying Multiplexer Techniques for Sigma-Delta ADCs
Autorzy:
Abdollahvand, S.
Goes, J.
Paulino, N.
Gomes, L.
Powiązania:
https://bibliotekanauki.pl/articles/397961.pdf
Data publikacji:
2012
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
filtr decymacyjny
filtr wielofazowy
modulator sigma-delta
field-programmable gate array
FPGA
decimation filter
Polyphase Comb filter
sigma-delta modulators
field programmable gate array (FPGA)
Opis:
This paper describes a new design approach for implementing a Polyphase Comb Filter (PCF) based on dispatching input bit-stream and interlaying multiplexer techniques. In order to make our solution more energy efficient in comparison with prior art, we start with a detailed analysis of the drawbacks and advantages of the existing classical techniques. A new structure based on a novel SINC3 design is proposed. This new design uses a controller unit to activate one sub-filter in each specific time interval. As a consequence, no input registers and switches are required. Since this decimation filter is working with a single-bit output bit-stream, the required multiplication function can be simply done by using interlaying multiplexers (MUXs). By interlaying different levels of MUXs along with the navigation of the input bit stream we can easily emulate the multiplication operation. The implementation in a Xilinx Spartan3 FPGA demonstrates the feasibility and hardware efficiency of our solution . The proposed new filter architecture can be readily applicable to any Sigma-Delta (ΣΔ) ADC with a single-bit output stream and it requires a reduced number of adders and registers when compared with the state-of-the-art approaches.
Źródło:
International Journal of Microelectronics and Computer Science; 2012, 3, 4; 152-158
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The airport gate assignment problem – multi-objective optimization versus evolutionary multi-objective optimization
Autorzy:
Kaliszewski, I.
Miroforidis, J.
Stańczak, J.
Powiązania:
https://bibliotekanauki.pl/articles/305661.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
airport gate assignment problem
Evolutionary Multi-objective Optimization
mixed-integer programming
Opis:
In this paper, we approach the Airport Gate Assignment Problem by Multi-objective Optimization as well as Evolutionary Multi-objective Optimization. We solve a bi-criteria formulation of this problem by the commercial mixed-integer programming solver CPLEX and a dedicated Evolutionary Multi-objective Optimization algorithm. To deal with multiple objectives, we apply a methodology that we developed earlier to capture decision-maker preferences in multi-objective environments. We present the results of numerical tests for these two approaches.
Źródło:
Computer Science; 2017, 18 (1); 41-52
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prognozowanie przyrostu stopnia zawilżenia powietrza w chodnikach podścianowych z odstawą urobku
Prognosing of increase of air humidity degree in bottom roads with conveying
Autorzy:
Knechtel, J.
Powiązania:
https://bibliotekanauki.pl/articles/340507.pdf
Data publikacji:
2008
Wydawca:
Główny Instytut Górnictwa
Tematy:
chodnik podścianowy
zawilżenie
powietrze kopalniane
longwall gate road
humidity
mine air
Opis:
Korzystając z posiadanej bazy danych pomiarowych, dotyczących parametrów mikroklimatu powietrza kopalnianego w 236 chodnikach podścianowych z odstawą urobku, obliczono jednostkowy przyrost stopnia zawilżenia powietrza w tych chodnikach. Po przeprowadzonej analizie błędów do dalszych roz-ważań zakwalifikowano te chodniki, dla których błąd pomiarowy wyznaczenia jednostkowego przyrostu stopnia zawilżenia powietrza nie przekraczał 50%. Dla zweryfikowanej bazy pomiarowej opracowano empiryczny wzór, pozwalający na prognozowanie przyrostu stopnia zawilżenia powietrza w takich chod-nikach. Weryfikacja tego wzoru wykazała, że średni błąd kwadratowy, jaki jest popełniany przy progno-zowaniu jednostkowego stopnia zawilżenia powietrza w chodnikach podścianowych z odstawą urobku wynosi około 40%, przy czym w błędzie tym tkwi błąd pomiarowy wynoszący około 24%.
Basing on the data roster containing results of mine microclimate parameters at 236 longwall gates with haulage the unitary increases of air humidity were calculated. Further analysis was performed only on the results whose measurement error margin was s than 50%. For this verified subset of measurement data an empirical formula was derived enabling to forecast the value of air humidity increase along such gates. The verification of this formula showed that the mean quadratic error of forecast of the unitary humidity increase along a longwall gate with haulage is about 40%, including about 24% measurement error.
Źródło:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2008, 1; 73-85
1643-7608
Pojawia się w:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
FPGA implementations of low precision floating point multiply-accumulate
Autorzy:
Amaricai, A.
Boncalo, O.
Sicoe, O
Powiązania:
https://bibliotekanauki.pl/articles/397897.pdf
Data publikacji:
2013
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
digital arithmetic
floating point arithmetic
FPGA
field programmable gate array (FPGA)
multiply-accumulate
dot product
arytmetyka cyfrowa
arytmetyka zmiennoprzecinkowa
field-programmable gate array
MAC
iloczyn skalarny
Opis:
Floating point (FP) multiply-accumulate (MAC) represents one of the most important operations in a wide range of applications, such as DSP, multimedia or graphic processing. This paper presents a FP MAC half precision (16-bit) FPGA implementation. The main contribution of this work is represented by the utilization of modern FPGA DSP block for performing both mantissa multiplication and mantissa accumulation. In order to use the DSP block for these operations, the alignment right shifts are performed before the multiply-add stage: a right shift on one of the multiplicand, and, a left shift for the other. This results in efficient DSP usage; thus both cost savings and higher performance (high working frequencies and low latencies) are targeted for MAC operations.
Źródło:
International Journal of Microelectronics and Computer Science; 2013, 4, 4; 159-163
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Algorithm for Reversible Circuits Synthesis
Autorzy:
Skorupski, Andrzej
Gracki, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/226226.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
reversible logic
reversible circuits
reversible gate
CNT set of the gates
Opis:
In this paper the new synthesis method for reversible networks is proposed. The method is suitable to generate optimal circuits. The examples will be shown for three variables reversible functions but the method is scalable to larger number of variables. The algorithm could be easily implemented with high speed execution and without big consuming storage software. Section 1 contains general concepts about the reversible functions. In Section 2 there are presented various descriptions of reversible functions. One of them is the description using partitions. In Section 3 there are introduced the cascade of the reversible gates as the target of the synthesis algorithm. In order to achieve this target the definitions of the rest and remain functions will be helpful. Section 4 contains the proposed algorithm. There is introduced a classification of minterms distribution for a given function. To select the successive gates in the cascade the condition of the improvement the minterms distribution must be fulfilled. Section 4 describes the algorithm how to improve the minterms distributions in order to find the optimal cascade. Section 5 shows the one example of this algorithm.
Źródło:
International Journal of Electronics and Telecommunications; 2020, 66, 2; 281-286
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Transforming Method Between Two Reversible Functions
Autorzy:
Skorupski, Andrzej
Gracki, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/226430.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
reversible logic
reversible circuits
reversible gate
CNT set of the gates
Opis:
This paper presents an original method of designing some special reversible circuits. This method is intended for the most popular gate set with three types of gates CNT (Control, NOT and Toffoli). The presented algorithm is based on two types of cascades with these reversible gates. The problem of transformation between two reversible functions is solved. This method allows to find optimal reversible circuits. The paper is organized as follows. Section 1 and 2 recalls basic concepts of reversible logic. Especially the two types of cascades of reversible function are presented. In Section 3 there is introduced a problem of analysis of the cascades. Section 4 describes the method of synthesis of the optimal cascade for transformation of the given reversible function into another one.
Źródło:
International Journal of Electronics and Telecommunications; 2019, 65, 1; 33-38
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis of FSMs Based on Architectural Decomposition with Joined Multiple Encoding
Autorzy:
Bukowiec, A.
Powiązania:
https://bibliotekanauki.pl/articles/227248.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Boolean algebra
circuit synthesis
field programmable gate array (FPGA)
sequential circuits
Opis:
The method of synthesis of the logic circuit of finite state machine (FSM) with Mealy's outputs is proposed in this paper. Proposed method is based on the innovate encoding of microinstructions split into subsets. Code of microinstruction is represented as a part of current state code and code of microinstruction inside of current subset. It leads to realization of FSM as s double-level structure. It leads to diminishing of number of variables required for encoding of microinstructions. Such approach permits to decrease the number of required outputs of combinational part of FSM.
Źródło:
International Journal of Electronics and Telecommunications; 2012, 58, 1; 35-41
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
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