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Wyświetlanie 1-8 z 8
Tytuł:
Fast and effective extraction for equivalent shunt resistances of triple-junction concentrator solar cells
Autorzy:
Lv, H
Dai, J
Sheng, F
Liu, W
Ma, X
Cheng, C
Lv, Q
Powiązania:
https://bibliotekanauki.pl/articles/174425.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
concentrator photovoltaic
triple junction solar cell
equivalent shunt resistance
Opis:
Fast and effective extraction of equivalent shunt resistance for each subcell of GaInP/GaInAs/Ge triple-junction concentrator solar cells is presented. The two-diode model of single junction was introduced to establish the equivalent circuit of triple-junction solar cells. The current-voltage characteristic of the triple-junction solar cells was measured under AM1.5D spectrum, C = 576 and T = 303 K. Equivalent shunt resistance of each subcell was extracted from its estimated current-voltage curve. The estimated current-voltage curve of the triple-junction solar cells shows a good agreement with the experimental data in 0.31% deviation. The degradation in the equivalent shunt resistance for Ge subcell was intentionally introduced to indicate the mechanism of current-matching operation for different subcells, with the maximum output power of the triple-junction solar cells deteriorating from 3.5 to 3.17 W. The results can offer performance analysis and optimum design of photovoltaic applications.
Źródło:
Optica Applicata; 2015, 45, 2; 227-235
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electronic Structure of Ternary Antimonides GdNiSb
Autorzy:
Wei, X.
Hu, X.
Dai, Y.
Lei, T.
Chu, S.
Deng, J.
Powiązania:
https://bibliotekanauki.pl/articles/1505358.pdf
Data publikacji:
2011-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.20.-b
71.15.Ap
71.15.Mb
71.20.Eh
71.20.Lp
Opis:
In the paper density functional theory method was applied to explore the electronic and magnetic properties of the GdNiSb in low-temperature phase with cubic MgAsAg-type structure and in the high-temperature phase. The calculations were performed by first principles full-relativistic full potential local orbital method within the local spin density approximation. The calculations results show the metallic character of GdNiSb compound in the high-temperature phase with hexagonal $AlB_2$-type structure. For the low-temperature phase of the cubic GdNiSb system, they indicate a semiconducting behavior. The density of states below the Fermi level is greater in high-temperature phase than in low-temperature one, the calculated magnetic moment is in good agreement with an available experimental value.
Źródło:
Acta Physica Polonica A; 2011, 119, 3; 405-407
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cell wall-degrading enzymes and aggressiveness in Stagonopspora nodorum
Autorzy:
Cui, K. R.
Krupinsky, J. M.
Dai, Q.
Arseniuk, E.
Ueng, P. P.
Powiązania:
https://bibliotekanauki.pl/articles/2198866.pdf
Data publikacji:
2005-06-23
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
aggressiveness
β-1,3-glucanase
cellulase
isozymes
isoelectric focusing
pectinase
secretion
Stagonospora nodorum
xylanase
Opis:
Stagonospora nodorum produces cell wall degrading enzymes when grown in culture media containing cell wall components. The pathogen grew as well on minimal agar plates containing cellulose, xylan and pectin as glucose, except having sparser mycelia. Four cell wall-degrading enzymes, cellulase, xylanase, pectinase and b-1,3-glucanase were coordinately induced in culture filtrates growing on xyaln and cellulose as substrates. An aggressive isolate (sn26-1) secreted more cell wall-degrading enzymes than the others. Based on isoelectric focusing profiles, six to seven xylanase isozymes were induced by cellulose and xylan. No difference was found in the high (sn26-1) and low (9074) aggressive isolates. Addition of cell wall-degrading enzyme mixtures, not high xylanase alone, to a spore suspension of a low aggressive isolate (9074) caused a limited increase in tissue necrosis. We conclude that the cell wall degrading enzymes play a role in early penetration of the host by the fungus, but they are not important elicitors for disease development.
Źródło:
Plant Breeding and Seed Science; 2005, 51; 21-30
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Defect Recovery in α-Fe e$\text{}^{-}$-irradiated at 300 K
Autorzy:
Dai, G. H.
Li, X. H.
Moser, P.
Moya, G.
Van Duysen, J. C.
Powiązania:
https://bibliotekanauki.pl/articles/1928989.pdf
Data publikacji:
1993-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.70.Bv
61.80.Fe
78.70.Bj
Opis:
Defect annealing recovery has been studied, by measuring positron lifetime spectra, in high-purity α-iron irradiated at 300 K with 3 MeV electrons to a fluency of 7 × 10$\text{}^{19}$ cm$\text{}^{-2}$. Vacancy clusters containing 6-10 single vacancies were observed immediately after irradiation during which they were possibly forming (the so-called "irradiation annealing"). With increasing temperature, the agglomerates continually grow in size at the expense of their concentration, giving rise to the formation of microvoids (> 15 vacancies). Also present were other types of defects, probably immobile vacancies trapped by impurity (e.g. carbon) atoms and dislocation/loops generated presumably from collapse of voids during the relatively high dose irradiation and/or the annealing. The immobile vacancies eventually became movable at around 350 K, supplying the growing clusters and thus leading to a stabilization in their concentration till around 500 K. Between 500 and 700 K, microvoids gradually evaporated, but the dislocation-associated defects were able to survive annealing at temperatures as high as 700 K. The void size and concentration and their evolution have been evaluated on the basis of both the to date theoretical and experimental studies. The temperature dependence was also, observed of positron trapping into vacancy agglomerates of various sizes.Za
Źródło:
Acta Physica Polonica A; 1993, 83, 3; 277-286
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Compressive optical image encryption using phase-shifting interferometry on a joint transform correlator
Autorzy:
Li, J.
Jia, B.
Dai, X.
Lei, M.
Yang, C.
Li, H.
Li, R.
Powiązania:
https://bibliotekanauki.pl/articles/174905.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
fully optical system
holographic interferometry
joint transform correlator (JTC)
binary scrambling method
inverse problems
Opis:
A compressive optical image encryption method, which combines compressive sensing with phase-shifting interferometry on a joint transform correlator, is proposed in the fully optical domain. The object image is first permutated using a binary scrambling method. Next, the permutated object field is encrypted and registered as the holograms by phase-shifting interferometry on the joint transform correlator setup. Then, the encrypted images and the key are compressed to the compressed data using single-pixel compressive imaging. The original image can be reconstructed and decrypted using the specified algorithm. The simulations demonstrate that the method is effective and suitable for image security transmission.
Źródło:
Optica Applicata; 2017, 47, 2; 245-256
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Ageratina adenophora on hepatic and pulmonic pathological lesions in horses
Autorzy:
Gu, X.L.
Dai, F.Y.
Xiao, X.
Li, G.Z.
Zhang, L.M.
Qu, W.J.
Powiązania:
https://bibliotekanauki.pl/articles/2087129.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Ageratina adenophora
liver
lung
horse
toxicity
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 4; 611-613
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of a linear epitope in the capsid protein of goose astrovirus with monoclonal antibody
Autorzy:
Dai, G.
Huang, X.
Liu, Q.
Li, Y.
Zhang, L.
Han, K.
Yang, J.
Liu, Y.
Xue, F.
Zhao, D.
Powiązania:
https://bibliotekanauki.pl/articles/16647377.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
epitope
goose astrovirus
capsid protein
monoclonal antibody
Opis:
Goose astrovirus (GoAstV) is a novel avastrovirus that typically causes gosling gout and results in 2 to 20% mortality. GoAstV capsid protein is the sole structural protein, which is responsible for viral attachment, assembly, maturation as well as eliciting host antibodies. However, the epitopes within capsid protein have not been well studied. In this study, a monoclonal antibody, named 1D7, was generated against GoAstV capsid protein by hybridoma technology. Western blot results showed that this MAb could react with recombinant capsid protein expressed in E. coli. Also, it recognized the precursor of capsid protein, VP90 and VP70, in GoAstV-infected cells. Besides, excellent specificity of MAb 1D7 was further demonstrated in indirect immunofluorescence assay and immunohistochemical analysis. Epitope mapping results revealed that MAb 1D7 recognized the epitope 33QKVY 36 within Cap protein. Sequence alignment indicated that 33QKVY 36 is a conserved epitope among the isolates of goose astrovirus type 2 (GoAstV-2), suggesting the potential for its use in GoAstV-2 specific diagnostic assay. These findings may provide some insight into a function of the GoAstV capsid protein and further contribute to the development of diagnostic methods for GoAstV infection.
Źródło:
Polish Journal of Veterinary Sciences; 2022, 25, 4; 579-587
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy Techniques in the Functional Approximation of Volumetric Capnograms
Autorzy:
Scandurra, A. G.
Pra, Ana L. Dai
Passoni, L. I.
Meschino, G. J.
Clara, F. M.
Tusman, G.
Böhm, S. H.
Powiązania:
https://bibliotekanauki.pl/articles/108656.pdf
Data publikacji:
2011
Wydawca:
Społeczna Akademia Nauk w Łodzi
Tematy:
volumetric capnography
Takagi-Sugeno Fuzzy Inference Systems
functional modeling
Opis:
The Volumetric Capnography (VC) is the plot of amounts of expired CO₂ within one tidal breath. The estimation of physiologic parameters derived from the VC is useful in the study of respiratory physiology, clinical anesthesia and critical care medicine. In this work we propose the use of a function based on a Takagi-Sugeno fuzzy model and a functional approximation based on the Levenberg-Marquardt algorithm to approximate the VC, with the goal to compute two variables of interest: the airway dead space (VDaw) and the slope of the so-called Phase III (SIII). These models presented a good performance in those capnograms that showed difficulties to be modeled with traditional medical analysis.
Źródło:
Journal of Applied Computer Science Methods; 2011, 3 No. 1; 17-29
1689-9636
Pojawia się w:
Journal of Applied Computer Science Methods
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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