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Wyświetlanie 1-10 z 12
Tytuł:
Development and application of isothermal amplification methods for rapid detection of F4 fimbriae producing Escherichia coli
Autorzy:
Zhao, L.Y.
Niu, J.H.
Gao, X.L.
Liu, C.N.
Liu, S.M.
Jiang, N.
Lv, X.P.
Zheng, S.M.
Powiązania:
https://bibliotekanauki.pl/articles/2087340.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Escherichia coli
F4 fimbriae
isothermal amplification
rapid detection
clinical samples
Źródło:
Polish Journal of Veterinary Sciences; 2020, 23, 1; 143-152
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation Method for the Bandgap of Antimonide Based Multicomponent Alloys
Autorzy:
An, N.
Liu, C.
Fan, C.
Dong, X.
Song, Q.
Powiązania:
https://bibliotekanauki.pl/articles/1030612.pdf
Data publikacji:
2018-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Ea
42.55.Px
81.15.Hi
Opis:
As the most important material parameter of semiconductor, bandgap is necessary to be investigated to meet the design requirements of the high-performance optoelectronic devices. A new method of is proposed to calibrate the bandgap of antimonide based multi-component alloys with considering the effect of spin-orbit splitting off bands and the doublet degeneracy of valance band on the bandgaps of Sb-containing materials. A correction factor is introduced in the conventional calculation, and the spin-orbit splitting method is proposed. Besides, the In_xGa_{1-x}As_ySb_{1-y} films with different compositions are grown on GaSb substrates by molecular beam epitaxy, and the corresponding bandgaps are obtained by photoluminescence to test the accuracy and reliability of this new method. An error rate analysis reveals that the α calculated by the spin-orbit splitting correction method is decreased to 2%, almost one order of magnitude smaller than the Moon method, which means that the new method can calculate the antimonide multicomponent more accurately with some applicability. This work can give a reasonable interpretation for the reported results and beneficial to tailor the antimonides properties and optoelectronic devices.
Źródło:
Acta Physica Polonica A; 2018, 133, 1; 118-120
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and Characterization of 1-(1-chlorocyclopropyl)-2-(1,2,4-triazol-1-yl)ethan-1-one
Autorzy:
Ji, H.
Niu, Y.
Liu, D.
Wang, W.
Dai, C.
Powiązania:
https://bibliotekanauki.pl/articles/778677.pdf
Data publikacji:
2017
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
prothioconazole
1,2,4-triazole
N-alkylation reaction
Opis:
A simple and efficient method to prepare 1-(1-chlorocyclopropyl)-2-(1,2,4-triazol-1-yl)ethan-1-one via nucleophilic substitution of 2-chloro-1-(1-chlorocyclopropyl)ethanone and 1,2,4-triazole is described. The title compound is the key intermediate required for the synthesis of prothioconazole, a promising agricultural fungicide. By exploring changes in the reaction time, temperature, ratio of starting reagents, acid binding agent, and the nature of phase transfer catalyst, the reaction conditions could be optimized to afford the desired N-alkylated material in near-quantitative yield. The ultimate yield of the product after recrystallization was 93%, with a purity of 99% based on its characterization by Gas Chromatography-Mass Spectrometer (GC-MS), Fourier Transform infrared spectroscopy (IR), Proton Magnetic Resonance (1H NMR), and Carbon-13 Nuclear Magnetic Resonance (13C NMR). The synthetic process is suitable for industrial application, with the advantages of high yield and facile preparation under mild operating conditions.
Źródło:
Polish Journal of Chemical Technology; 2017, 19, 1; 41-47
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reduced stress and fluctuation for the integrated α-Si TFT gate driver on the LCD
Autorzy:
Huang, N. X.
Shiau, M. S.
Wu, H.-C.
Sun, R. C.
Liu, D.-G.
Powiązania:
https://bibliotekanauki.pl/articles/397883.pdf
Data publikacji:
2010
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
sterownik bramy
fluktuacja hałasu
wpływ naprężenia
system w panelu
gate driver
fluctuation noise
stress effect
system on panel (SoP)
Opis:
In this paper, an integrated TFT gate driver was designed on the glass substrate not only to decrease the fluctuation at the output, but also to reduce the stress effect on the pull-down branches. The fluctuation in the voltage at the output transistor was attributed to the coupled clocks through the parasitic capacitors in the TFTs. In this study, the voltage gating the pull-down braches was reduced for longer operational lifetime. This scheme was investigated by simulation by Smart-SPICE with an α-Si TFT model from Wintek Inc. at level 35.
Źródło:
International Journal of Microelectronics and Computer Science; 2010, 1, 3; 311-315
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical study of hydrodynamic derivatives and course stability under ship-bank interaction
Autorzy:
Liu, H.
Ma, N.
Gu, X. C.
Powiązania:
https://bibliotekanauki.pl/articles/116925.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety at sea
ship-bank interaction
Reynolds-Averaged Navier-Stokes (RANS)
hydrodynamic derivatives
hydrodynamics
Planar Motion Mechanism (PMM)
Circulating Water Channel (CWC)
User Defined Functions (UDF)
Opis:
Since ship-bank interaction affects the manoeuvrability of a ship navigating close to a bank, the determination of hydrodynamic derivatives is of great importance to assess the ship manoeuvrability. To obtain the hydrodynamic derivatives of the KVLCC2 model ship with different water depths and ship-bank distances, the simulation of PMM tests are carried out using an unsteady Reynolds-Averaged Navier–Stokes (RANS) based solver. Hybrid dynamic mesh technique is proposed to realize the simulation of pure yaw tests in confined water. Studies on the grid convergence and time-step-size convergence are firstly performed. Hydrodynamic derivatives for the ship in different water depths and ship-bank distances are compared. The course stability is investigated based on time-domain simulations and eigenvalue analysis, and the results show that the ship-bank interaction and shallow water effect have a remarkable influence on the course stability.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 4; 747-753
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ship Course Following and Course Keeping in Restricted Waters Based on Model Predictive Control
Autorzy:
Liu, H.
Ma, N.
Gu, X. C.
Powiązania:
https://bibliotekanauki.pl/articles/116264.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Movement, Multiple-Input Multiple-Output (MIMO)
Very Large Crude Carrier (VLCC)
Model Predictive Control (MPC)
Linear Quadratic Regulator (LQR)
course
restricted waters
safety at sea
Opis:
Ship navigation safety in restricted water areas is of great concern to crew members, because ships sailing in close proximity to banks are significantly affected by the so-called ship-bank interaction. The purpose of this paper is to apply the optimal control theory to help helmsmen adjust ships’ course and maintain the target course in restricted waters. To achieve this objective, the motion of a very large crude carrier (VLCC) close to a bank is modeled with the linear equations of manoeuvring and the influence of bank effect on the ship hydrodynamic force is considered in the model. State-space framework is cast in a Multiple-Input Multiple-Output (MIMO) system, where the offset-free model predictive control (MPC) is designed for course following and the linear quadratic regulator (LQR) is used for course keeping. Simulation results show that the control methods effectively work in ship course following and course keeping with varying ship-bank distances and water depths. The advantage of adopting speed variation as the second control input is obvious.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 305-312
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The INSIDE Project: Innovative Solutions for In-Beam Dosimetry in Hadrontherapy
Autorzy:
Marafini, M.
Attili, A.
Battistoni, G.
Belcari, N.
Bisogni, M.
Camarlinghi, N.
Cappucci, F.
Cecchetti, M.
Cerello, P.
Ciciriello, F.
Cirrone, G.
Coli, S.
Corsi, F.
Cuttone, G.
De Lucia, E.
Ferretti, S.
Faccini, R.
Fiorina, E.
Frallicciardi, P.
Giraudo, G.
Kostara, E.
Kraan, A.
Licciulli, F.
Liu, B.
Marino, N.
Marzocca, C.
Matarrese, G.
Morone, C.
Morrocchi, M.
Muraro, S.
Patera, V.
Pennazio, F.
Peroni, C.
Piersanti, L.
Piliero, M.
Pirrone, G.
Rivetti, A.
Romano, F.
Rosso, V.
Sala, P.
Sarti, A.
Sciubba, A.
Sportelli, G.
Voena, C.
Wheadon, R.
Del Guerra, A.
Powiązania:
https://bibliotekanauki.pl/articles/1402609.pdf
Data publikacji:
2015-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.53.Bn
87.53.Jw
87.53.Kn
87.55.N-
87.55.ne
87.57.uq
Opis:
The INSIDE project addresses the online dose monitoring in particle therapy issue. The proposed detectors exploit the secondary neutral and charged particles emitted during the treatment by the irradiated volumes. The new detection techniques allow to return and online a measurement of the released dose and the Bragg peak position.
Źródło:
Acta Physica Polonica A; 2015, 127, 5; 1465-1467
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of Monitoring Performances with the INSIDE System
Autorzy:
Pennazio, F.
Attili, A.
Battistoni, G.
Belcari, N.
Bisogni, M.
Camarlinghi, N.
Cappucci, F.
Cecchetti, M.
Cerello, P.
Ciciriello, F.
Cirrone, G.
Coli, S.
Corsi, F.
Cuttone, G.
De Lucia, E.
Ferretti, S.
Faccini, R.
Fiorina, E.
Frallicciardi, P.
Giraudo, G.
Kostara, E.
Kraan, A.
Licciulli, F.
Liu, B.
Marafini, M.
Marino, N.
Marzocca, C.
Matarrese, G.
Morone, C.
Morrocchi, M.
Muraro, S.
Patera, V.
Peroni, C.
Piersanti, L.
Piliero, M.
Pirrone, G.
Rivetti, A.
Romano, F.
Rosso, V.
Sala, P.
Sarti, A.
Sciubba, A.
Sportelli, G.
Voena, C.
Wheadon, R.
Del Guerra, A.
Powiązania:
https://bibliotekanauki.pl/articles/1402611.pdf
Data publikacji:
2015-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.53.Bn
87.53.Jw
87.53.Kn
87.55.N-
87.55.ne
87.57.uq
Opis:
The INSIDE collaboration aims to build an on-line hadrontherapy monitoring system, based on a dual-head in-beam PET scanner and a secondary charged particles profiler. In this work preliminary experimental results are presented. The validation of the FLUKA-based Monte Carlo simulation tool is shown together with the expected scanner performances.
Źródło:
Acta Physica Polonica A; 2015, 127, 5; 1468-1470
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nanofluid flow and heat transfer of carbon nanotube and graphene platelette nanofluids in entrance region of microchannels
Autorzy:
Fuller, N. E.
Liu, J. T. C.
Powiązania:
https://bibliotekanauki.pl/articles/38606230.pdf
Data publikacji:
2020
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
nanofluids
heat transfer
carbon nanotube
graphene nanoplatelettes
Opis:
Suspensions of nano-scale particles in liquids, dubbed nanofluids, are of great interest for heat transfer applications. Nanofluids potentially offer superior thermal conductivity to alternative, pure fluids and are of particular interest in applications where active cooling of power-dense systems is required. In this work, the thermophysical properties of carbon nanotube nanofluids (CNTNf) and those of graphene nanoplatelette nanofluids (GNPNf) as functions of particle volume fraction are deduced from published experiments. These properties are applied to a perturbative boundary layer model to examine how the velocity and temperature profiles (and correspondingly shear stress and surface heat transfer) vary with the nanoparticle concentration in the entrance region of microchannels. Findings of this modeling effort indicate that both shear stress and heat transfer in GNPNf increase with increasing particle concentration. The normalized increase in shear stress is approximately twice that for heat transfer as a function of the GNP particle concentration. Interestingly, CNTNf shows anti-enhancement heat transfer behaviour; an increasing concentration of CNT nanoparticles is associated with both an increase in shear stress and a decrease in the surface heat transfer rate.
Źródło:
Archives of Mechanics; 2020, 72, 4; 355-379
0373-2029
Pojawia się w:
Archives of Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A CTS pump with a crossed-coupled output for higher conversion efficiency
Autorzy:
Hsieh, Z. H.
Huang, N. X.
Shiau, M. S.
Wu, H. C.
Yang, S.-Y.
Liu, D.-G.
Powiązania:
https://bibliotekanauki.pl/articles/397847.pdf
Data publikacji:
2010
Wydawca:
Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:
DC-DC przetwornice
CTS ładunek pompy
sprzężenie skrośne ładunku pompy
DC-DC converter
CTS charge pump
cross coupled charge pump
Opis:
In this paper, a novel switching-capacitor DC-DC voltage converter with higher efficiency will be presented. This circuit was designed by modifying the output stage of the conventional static charge-transfer-switch (CTS) charge pump in a cross-coupled configuration. In this design, a control scheme to overcome both the reverse charge sharing and the threshold drops in the CTS pump was also employed. In this study, the capacitances for all the pumping capacitors were selected the same as 0.1 μF. With this design, our circuit can operate with a clock rate up to 1 MHz. The performance of this circuit was first evaluated by simulation by HSPICE with the 0.35-μm technology of TSMC. The results showed that this circuit can pump the low input of 1.5V nearly 5 times at the output. The conversion gain can be around 95%. The performance of the real chip manufactured by TSMC was measured and will be compared with the simulation results.
Źródło:
International Journal of Microelectronics and Computer Science; 2010, 1, 1; 9-14
2080-8755
2353-9607
Pojawia się w:
International Journal of Microelectronics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
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