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Wyświetlanie 1-15 z 5888
Tytuł:
“Interactive Power Devices for Efficiency in Automotive with Increased Reliability and Safety” – the European Project Concerning the Main Automotive and Transport Application Domains
Autorzy:
Kadlec, J.
Kuchta, R.
Novotny, R.
Hajduga, A.
Sekrecki, M.
Roszczyk, P.
Dybowski, J.
Kalbarczyk, J.
Zieliński, W.
Bańbura, P.
Burliński, R.
Powiązania:
https://bibliotekanauki.pl/articles/263013.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
electric vehicle
NAND flash memory
reliability
EV powertrain
electric drive efficiency
pojazd elektryczny
pamięć flash NAND
niezawodność
napęd
napęd elektryczny
efektywność
Opis:
The overall objective of the IDEAS project is to develop advanced packaging for power supply components and new generation memory systems applicable to Electric and ICE propelled vehicles, with paying attention to considering also the aspects that have not been addressed yet in the running ENIAC and ARTEMIS Automotive projects. A major challenge related to electronic devices in the automotive applications is the reliability of power supply systems which must be capable to assure the functionality of subsystems in all operating conditions, inclusive of ageing. The control systems, which rely on multicore microcontrollers and complex software architectures, require increasingly stringent constraints from the memory devices which need to be designed for very high bandwidth, speed and reliability. In the following thesis, a few aspects of the IDEAS project will be presented: a review of important factors that affect the reliability and life-cycle endurance of NAND flash memories, multispeed gear application in electric drives and its influence on the energy efficiency. The problem of electromagnetic compatibility of electronic devices will also be dealt with in the paper
Źródło:
Archiwum Motoryzacji; 2015, 69, 3; 31-64
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
"Red book" of the Hungarian landscapes atlas of the threaths on the natural functioning of the 229 Hungarian microregions
Autorzy:
Csorba, P.
Szabo, J.
Bodnar, R.
Szilagyi, Z.
Szabo, G.
Szabo, S.
Novak, T.
Fazekas, I.
Powiązania:
https://bibliotekanauki.pl/articles/87960.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Geograficzne
Tematy:
indexes for landscape functioning
landscape fragmentation
natural hazards
land use change
Hungary
Opis:
For the good established landscape planning landscape protection and landscape management actions have to take into consideration the actual conditions of the landscape elements. Earlier we dealt with the stability of the landscapes (Kerényi, Csorba, 1996), recently started to investigate the most important factors, which are endangers the proper functioning of the landscapes. Results are calculated for 229 microregions of the country, which are elements of the official landscape hierarchy of Hungary described in the Cadastral of Microregions of Hungary. The average size of the microregions are 100-500 km2. There are certain factors among which some have already elaborated, and others are being worked on yet. Degree of ecological fragmentation of the microregions by roads, railway lines and settlements was determined during the last year. In the case of large settlements the extent of inner parts, traffic intensities of the roads was taken into account, while in the case of railroads it was taken into consideration whether railway lines are single or double tracked. Results were purified using a weighting, where the location of the protected natural areas compared to the situation of the given settlement, roads or railroads was taken into consideration. In the calculations it was taken into account as well that the agglomeration processes of the large settlements may restrict the ecological gates and corridors of the migration of plant and animal species. From the series of maps on natural threats on microregional level, the map of the hazards of drought is presented first. The map gives a definite answer to the question, in which microregions is profitable to establish irrigation systems; and how high is the uncertainty of the rate of their utilization. Global warming, however, may modulate the map resented here remarkably in the next decades. Microregions that have been classified into transition categories with moderate or medium level of drought hazard may fall into categories of serious hazard of drought in the future. A synthesizing map has been completed by summing the seven datasets of the indicator group of natural hazards and the weighting of the subsets. Landscape planning is strongly affected by tendencies of macro economy on the present land use structure. EU agricultural policies have just started to affect strongly on Hungarian land use structure, therefore attempts have been made in order to forecast their impacts. Present Hungarian land use structure has been compared to priorities of the EU. Prospective shifts in land use structure have been determined for the 35 regions of Hungary. According to the 8-10 factors mentioned above, we shall have a detailed database to evaluate the microregions of Hungary in order to characterize the most threatened landscapes, and the most dangerous impacts on the landscape functioning.
Źródło:
Prace Komisji Krajobrazu Kulturowego; 2008, 8; 43-60
1896-1460
2391-5293
Pojawia się w:
Prace Komisji Krajobrazu Kulturowego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
"Szlakiem Podkowca" - liczenie nietoperzy przez turystów, w sposób niezagrażający ich ochronie
"On the Trail of the Horseshoe Bat" – tourists counting the bats without threat to their protection
Autorzy:
Wegiel, J.
Szkudlarek, R.
Wegiel, A.
Paszkiewicz, R.
Bator, A.
Powiązania:
https://bibliotekanauki.pl/articles/881398.pdf
Data publikacji:
2011
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
turystyka przyrodnicza
obszary chronione
ochrona przyrody
nietoperze
podkowiec maly
liczenie
kampania turystyczno-promocyjna Szlakiem podkowca
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2011, 13, 3[28]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
$\text{}^{1}$H NMR Study of Molecular Dynamics of 4-apyH Cation under High Hydrostatic Pressure
Autorzy:
Medycki, W.
Świergiel, J.
Jakubas, R.
Hołderna-Natkaniec, K.
Powiązania:
https://bibliotekanauki.pl/articles/2043431.pdf
Data publikacji:
2005-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
77.84.-s
76.60.-k
Opis:
Polycrystalline [4-NH$\text{}_{2}$C$\text{}_{5}$H$\text{}_{4}$NH] SbCl$\text{}_{4}$ and [4-NH$\text{}_{2}$C$\text{}_{5}$H$\text{}_{4}$NH] SbCl$\text{}_{6}$ have been investigated by proton NMR methods between 120 K and 370 K under hydrostatic pressure of 0.1 and 520 MPa. Reduction in the dipolar second moment is interpreted in terms of cation reorientation. Activation energies characterizing the motion increase with increasing pressure.
Źródło:
Acta Physica Polonica A; 2005, 108, 1; 161-164
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
$\text{}^{35}Cl$ NQR Study of Cation Polarizability in Metal Salts of Monochloro Acetic Acid
Autorzy:
Ramananda, D.
Ramu, L.
Chandramani, R.
Ramesh, K.
Uchil, J.
Powiązania:
https://bibliotekanauki.pl/articles/1812357.pdf
Data publikacji:
2008-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
76.60.Gv
Opis:
Various metal salts (Na, K, Rb, and $NH_4$) of monochloro acetic acid were prepared and the $\text{}^{35}Cl$ nuclear quadrupole resonance frequencies were measured at room temperature. A comparative study of nuclear quadrupole resonance frequencies of monochloro acetic acid and its metal salts is carried out. The frequency shifts obtained in the respective metal chloroacetates are used to estimate the changes in the ionicity of C-Cl bond. Further, the changes in the ionicity of C-Cl bond were used to estimate the percentage of intra-molecular charge transfer between respective cation-anion of the metal salts of chloro acetic acid. The nuclear quadrupole resonance frequency is found to decrease with increasing ionicity of the alkali metal ion.
Źródło:
Acta Physica Polonica A; 2008, 113, 6; 1679-1685
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
'THE PLAYER OF THE LATIN SWEETLY SOUNDING STRINGS'
Autorzy:
Kaczynski, J. R.
Powiązania:
https://bibliotekanauki.pl/articles/702721.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
HORACE
Opis:
An overview of life and poetry of Quintus Horatius Flaccus, commonly known as Horace, is presented. After describing his educational years in Rome and Athens as well as clerical duties in Rome, the author focuses on Horace's poetical endeavors, which were so much supported by his protector and friend Gaius Cilnius Maecenas. Particular attention is paid to Horace's 'Carmina' and 'Epistulae'.
Źródło:
Meander; 2005, 60, 1; 69-85
0025-6285
Pojawia się w:
Meander
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
100 Gbps wireless – data link layer VHDL implementation
Autorzy:
Lopacinski, L.
Nolte, J.
Buechner, S.
Brzozowski, M.
Kraemer, R.
Powiązania:
https://bibliotekanauki.pl/articles/973065.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
data link layer
wireless
100 Gbps
FPGA
Opis:
In this paper, we describe implementation and hardware used for a wireless 100 Gbps data link layer demonstrator. So fast stream processing requires a highly parallelized approach. The timing requirements of the 100 Gbps networks are so demanding that there is no chance to deal with this task as a single stream in a field programmable gate array (FPGA). Due to this reason, we introduce and validate one of possible architectures that can solve the task. The 100 Gbps implementation is explained in detail, and the most important parameters of the FPGA design are mentioned.
Źródło:
Measurement Automation Monitoring; 2015, 61, 7; 333-336
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
100 Gb/s Data Link Layer - from a Simulation to FPGA Implementation
Autorzy:
Łopaciński, Ł.
Brzozowski, M.
Kraemer, R.
Buechner, S.
Nolte, J.
Powiązania:
https://bibliotekanauki.pl/articles/309393.pdf
Data publikacji:
2016
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
ARQ
FEC
frame aggregation
HARQ
link adaptation
Reed-Solomon FEC
segmentation
Opis:
In this paper, a simulation and hardware implementation of a data link layer for 100 Gb/s terahertz wireless communications is presented. In this solution the overhead of protocols and coding should be reduced to a minimum. This is especially important for high-speed networks, where a small degradation of efficiency will lower the user data throughput by several gigabytes per second. The following aspects are explained: an acknowledge frame compression, the optimal frame segmentation and aggregation, Reed-Solomon forward error correction, an algorithm to control the transmitted data redundancy (link adaptation), and FPGA implementation of a demonstrator. The most important conclusion is that changing the segment size influences the uncoded transmissions mostly, and the FPGA memory footprint can be significantly reduced when the hybrid automatic repeat request type II is replaced by the type I with a link adaptation. Additionally, an algorithm for controlling the Reed-Solomon redundancy is presented. Hardware implementation is demonstrated, and the device achieves net data rate of 97 Gb/s.
Źródło:
Journal of Telecommunications and Information Technology; 2016, 1; 90-100
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
18. kongres IABSE 2012 w Seulu
18th IABSE Congress, Soeul, 2012
Autorzy:
Hawryszków, P.
Onysyk, J.
Toczkiewicz, R.
Powiązania:
https://bibliotekanauki.pl/articles/365326.pdf
Data publikacji:
2013
Wydawca:
Nowoczesne Budownictwo Inżynieryjne
Tematy:
bridge trójpylonowy
budownictwo mostowe
kongres
materiały kompozytowe
most
most trójpylonowy
bridge
bridge construction
composite materials
congress
Opis:
19.21 września 2012 r. odbył się w Seulu 18. międzynarodowy kongres IABSE (International Association for Bridge and Structural Engineering) [1]. Poprzednie edycje miały miejsce w Chicago (2008), Lucernie (2000), Kopenhadze (1996) i New Delhi (1992), zaś pierwsza z nich została zorganizowana 80 lat temu w Paryżu (1932). Oprócz kongresów odbywających się co kilka lat, IABSE corocznie organizuje sympozja i konferencje dotyczące szeroko rozumianej infrastruktury i konstrukcji inżynierskich.
Źródło:
Nowoczesne Budownictwo Inżynieryjne; 2013, 1; 23-26
1734-6681
Pojawia się w:
Nowoczesne Budownictwo Inżynieryjne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
200 years of land - use change and gully erosion : a case study from Małopolska, SE Poland
Autorzy:
Schmidt, R.
Heinrich, J.
Powiązania:
https://bibliotekanauki.pl/articles/295154.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
gully erosion
human impact
land-use change
Małopolska
Polska
Opis:
Loess areas are highly affected by human impact since the Neolithic revolution. Within the study in Małopolska we assess the impact of land-use changes on geomorphological processes for the last 200 years. Phases of deforestation and a subsequent intensive agricultural use can be correlated with the appearance of gully erosion.
Źródło:
Landform Analysis; 2011, 17; 167-171
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
2D microgravity test-bed for the validation of space robot control algorithms
Autorzy:
Oleś, J.
Kindracki, J.
Rybus, T.
Mężyk, Ł.
Paszkiewicz, P.
Moczydłowski, R.
Barciński, T.
Seweryn, K.
Wolański, P.
Powiązania:
https://bibliotekanauki.pl/articles/384755.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
space debris
Active Debris Removal
Kessler syndrome
microgravity simulator
space robot
robotic arm
manipulator
control algorithm
Opis:
The utilization of satellites equipped with robotic arms is one of the existing strategies for Active Debris Removal (ADR). Considering that the time intended for on-orbit capturing manoeuvres is strictly limited, any given space robot should possess a certain level of autonomy. This paper is about the control of on-orbit space robots and the testing of such objects in laboratory conditions. The Space Research Centre of the Polish Academy of Sciences (CBK PAN) possesses a planar air bearing microgravity simulator used for the testing of advanced control algorithms of space robots supported on air bearings. This paper presents recent upgrades to the testing facility. Firstly, the base of the space robot is now equipped with manoeuvre thrusters using compressed nitrogen and therefore allowing for position control of the entire system. Secondly, a signal from an external vision system, referencing the position and orientation of the robot’s parts is used by the control system for the closed loop control.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2017, 11, 2; 95-104
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
3-D visualisation of the elements of the wind power plant with the use of CAD software
Autorzy:
Jajczyk, J.
Kamiński, R.
Powiązania:
https://bibliotekanauki.pl/articles/97648.pdf
Data publikacji:
2015
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
CAD
3D
visualisation
simulation
Opis:
The article presents the possibilities of CAD software as a tool allowing for 3-D visualisation, used during design works and during creation of equipment prototypes. Possibilities of the software were presented with regard to parametrization of the objects. Benefits connected with simulation of impacts between the tested object and the surroundings were indicated. The method in which the operation with modern CAD software speeds up exchange of information between the cooperating units during project execution was described.
Źródło:
Computer Applications in Electrical Engineering; 2015, 13; 153-160
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 5888

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