Autor: Cheng, X. M. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Flux Penetration in a Ferromagnetic/Superconducting Bilayer
Autorzy:: Adamus, Z.
Cieplak, M. Z.
Abal'oshev, A.
Kończykowski, M.
Cheng, X. M.
Zhu, L. Y.
Chien, C. L.
Tematy:: 74.25.Ha
74.25.Qt
74.78.Db
74.78.Fk; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/2047227.pdf Link otwiera się w nowym oknie
Opis:: An array of miniature Hall sensors is used to study the magnetic flux penetration in a ferromagnetic/superconducting bilayer consisting of Nb as a superconducting layer and Co/Pt multilayer with perpendicular magnetic anisotropy as a ferromagnetic layer, separated by an amorphous Si layer to avoid the proximity effect. It is found that the magnetic domains in the ferromagnetic layer create a large edge barrier in the superconducting layer which delays flux penetration. The smooth flux profiles observed in the absence of magnetic pinning change into terraced profiles in the presence of domains.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Vortex Pinning in Ferromagnet/Superconductor Bilayers - the Dependence on the Ferromagnetic Layer and Temperature
Autorzy:: Adamus, Z.
Cieplak, M. Z.
Abal'oshev, A.
Berkowski, M.
Kończykowski, M.
Cheng, X. M.
Shu, L. Y.
Chien, C. L.
Tematy:: 74.25.Ha
74.25.Qt
74.78.Db
74.78.Fk; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/2046703.pdf Link otwiera się w nowym oknie
Opis:: The behavior of vortex pinning induced by the magnetic domain reversal is studied in the ferromagnet/superconductor bilayers in which superconducting film is niobium and the ferromagnetic layers are the Co/Pt superlattices with perpendicular magnetic anisotropy. The local magnetic field across narrow ferromagnet/superconductor bilayer stripe is measured using a line of miniature Hall sensors. The pinning is studied for samples with different amount of repeats of Co/Pt superlattice, and as a function of temperature.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Simulation of static stress distribution of wheat piles in silos by the modified Cam-clay model
Autorzy:: Gao, M.
Cheng, X.
Hu, M.
Du, X.
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/26369.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: Kinetics of photoelectrocatalytic degradation of diclofenac using N, S co-doped TiO2 nano-crystallite decorated TiO2 nanotube arrays photoelectrode
Autorzy:: Cui, Y.
Deng, X.
Ma, Q.
Zhang, H.
Cheng, X.
Li, X.
Xie, M.
Cheng, Q.
Li, B.
Tematy:: effluents
nanotubes
sodium sulfate
sulfur compounds
yarn
photoelectrocatalytic degradation
ścieki
nanorurki
siarczan sodu
związki siarki
przędza; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Powiązania:: https://bibliotekanauki.pl/articles/207955.pdf Link otwiera się w nowym oknie
Opis:: As a non-steroidal anti-inflammatory drug, diclofenac, was commonly used as analgesic, antiarthritic and antirheumatic, and has frequently been detected in municipal wastewater treatment plants (MWTPs) effluents and demonstrated to be potentially environmental risk on human beings. In the present study, N, S co-doped TiO₂ nano-crystallites decorated TiO₂ nano-tube arrays (N, S-TiO₂ NCs/TiO₂ NTAs) photoelectrode was used to degrade diclofenac containing wastewater. In addition, the effects of some critical parameters including initial pH, external positive potential, sodium sulfate concentration and initial diclofenac concentration on the photoelectrocatalytic (PEC) degradation of diclofenac containing wastewater and dynamic characteristics were investigated systematically. Results showed that N, S-TiO₂ NCs/TiO₂ NTAs photoelectrode exhibited high PEC efficiency for the degradation of diclofenac, in which the PEC processes fitted well with the Langmuir–Hinshelwood (L–H) model. Furthermore, external additional anions such as Cl^–, ClO^– and NO₃ – played an important role in inhibiting the degradation of diclofenac. Also, the N, S-TiO₂ NCs/TiO₂ NTAs photoelectrode possessed good stability for consecutive applications for degradation of diclofenac, which could potentially be utilized in wastewater treatment.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: Effects of synthesis conditions on the synthesis of carbon nanofibers by ethanol catalytic combustion
Wpływ warunków syntezy na syntezę nanowłókien węglowych metoda katalitycznego spalania etanolu
Autorzy:: Cheng, J.
Zou, X. P.
Zhu, G.
Wang, M. F.
Su, Y.
Yang, G. Q.
Lu, X. M.
Tematy:: synteza
nanowłókna węglowe
spalanie
etanol
carbon nanofibers
ethanol catalytic combustion
influence factors; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/354282.pdf Link otwiera się w nowym oknie
Opis:: In this paper, the effects of position of substrates in flames, preparation time, stability of flames and catalyst precursors on the synthesis of carbon nanofibers (CNFs) by ethanol catalytic combustion (ECC) were investigated. For investigating the effects of these influence factors on the synthesis of CNFs, several sets of controlled experiments were performed, such as preparation experiments with different position of substrates in flames, different preparation time, stable and unstable flames, and different catalyst precursors. In our experiments, the catalyst precursors were iron nitrate, cobalt nitrate, nickel nitrate, and iron chloride, cobalt chloride, nickel chloride. The as-synthesized products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy. Our results indicate that the optimal position of substrates in flames is more than 1cm and less than 2.5cm, the optimal preparation time is more than 5min and less than 30min for massive yield, stable flames would be tent to synthesize CNFs with mainly single-type morphology and could improve the graphitization of CNFs, and the catalyst precursors obviously have effects on the synthesis of CNFs.
W niniejszej pracy zbadany został wpływ położenia substratów w płomieniach, czasu przygotowania, stabilności płomieni i prekursorów katalizatora na syntezę nanowłókien węglowych (CNFs) metodaą katalitycznego spalania etanolu (ECC). W celu zbadania wpływu tych czynników na syntezę nanowłókien węglowych przeprowadzono kilka zestawów kontrolowanych eksperymentów, przy różnej pozycji podłoży w płomieniach, różnym czasie przygotowania, płomieniach stabilnych i niestabilnych i przy użyciu różnych prekursorów katalizatora. W naszych eksperymentach jako prekursory katalizatora stosowano azotany: żelaza, kobaltu i niklu oraz chlorki żelaza, kobaltu i niklu. Tak otrzymane produkty syntezy scharakteryzowano za pomocą skaningowej mikroskopii elektronowej (SEM), transmisyjnej mikroskopii elektronowej (TEM) i spektroskopii Raman'a. Nasze wyniki wskazują, że optymalna pozycja podłoży w płomieniach to więcej niż 1 cm i mniej niż 2,5 cm, a optymalny czas przygotowania to więcej niż 5 min i mniej niż 30 min dla dużej wydajności. Stabilność płomieni będzie sprzyjać syntezie nanowłókien o morfologii jednego typu i może poprawić ich grafityzacje, a rodzaj prekursora katalizatora ma wpływ na syntezę nanowłókien.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 6.

Tytuł:: Acquisition of the Surface Morphology of Ruled Gratings with a Microscope Objective
Autorzy:: Li, Z.
Ma, L.
Liu, C.
Zhang, M.
Chen, X.
Cheng, C.
Tematy:: 42.30.Kq
42.87.-d
42.79.Dj
42.40.Kw; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1189791.pdf Link otwiera się w nowym oknie
Opis:: In this paper, an optical microscope objective with large numerical number is inserted into a Mach-Zehnder interferometer, and this system is adopted to detect the surface morphologies of two ruled transmission gratings with area scale to a micrometer. The object waves transmitting from the gratings interfere with spherical reference wave, and the interferograms constructed are recorded by a high-resolution CCD. The surface maps of the gratings are retrieved from the interferograms, and the results are confirmed by the measurement with an atomic force microscope, with detection errors in nanometer scale. This work provides an optical non-destructive method for precise detection of small-area sophisticated object surfaces with an optical microscope objective.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 7.

Tytuł:: Somaclonal variation in winter wheat [Triticum aestivum L.]: frequency, occurrence and inheritance
Autorzy:: Cheng, X Y
Gao, M.W.
Liang, Z.Q.
Liu, G.Z.
Tematy:: inheritance
tissue culture
Triticum aestivum
occurrence
in vitro
winter wheat
gene mutation
plant breeding
callus induction
frequency
somaclonal variation
wheat
embryo; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2044461.pdf Link otwiera się w nowym oknie
Opis:: Plants were regenerated from immature embryo cultures of 35 winter wheat genotypes. General responses of regenerated plants were investigated and a total of 7142 R₂ spike lines from 1593 R₁ plants were assessed in the field for somaclonal variants in 1985/86, 1986/87 and 1987/88. Selected variants were studied for their possible genetic inheritance. From regenerated plantlets, 81% survived and 63% produced fertile plants. Forms with reduced plant height, length of spike and other morphological abnormalities were found in this progeny. Populations of R₁ plants were highly variable due mainly to the physiological disturbances resulting from the in vitro process. Overall somaclonal variation frequencies were 14.2% per plant basis and 5.3% per R₂ spike basis. The variants were similar in the three different R₂ generations with predominant variants being negative in plant height, maturity, awns, spike type and plant type. Both uniform R₂ variant families and spike lines were found in addition to the segregating variants which constituted the majority. On average, in a variant family or line, 18% and 14% of their component lines and plants were variants, respectively. Inheritability was demonstrated for the uniform variant families and spike lines as well as segregated variants. Of those 134 selections, about 70% were classified as inheritable. Both recessive and dominant gene mutations at one, two or three loci were evident in some variants as suggested by the segregating data.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 8.

Tytuł:: Reconstruction of oviraptorid clutches illuminates their unique nesting biology
Autorzy:: Yang, T.-R.
Wiemann, J.
Xu, L.
Cheng, Y.-N.
Wu, X.-C.
Sander, P.M.
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Powiązania:: https://bibliotekanauki.pl/articles/19933.pdf Link otwiera się w nowym oknie
Opis:: Oviraptorosaurs, a group of non-avian theropod dinosaurs from the Cretaceous of Asia and North America, left behind the most abundant and informative fossil evidence of dinosaur reproductive biology. Previous studies had suggested that oviraptorosaur reproductive biology represents an intermediate stage and exhibited unique modern avian traits. For instance, the adult-associated clutches were predominantly considered as evidence for brooding/thermoregulatory contact incubation (TCI) behaviors, whereas the hypotheses of laying or protection were neglected. Despite numerous oviraptorid egg clutches uncovered from China and Mongolia, their nest architecture and clutch arrangement were rarely investigated in detail. Here we present a comprehensive reconstruction of an oviraptorid clutch based on five new oviraptorid clutches from Jiangxi Province, China. A detailed examination of the new clutches reveals a partially-open oviraptorid nest that contains 3–4 rings of paired eggs (more than 15 pairs total) whose blunt end points toward the center devoid of eggs at an angle of 35–40°. Our detailed three-dimensional reconstruction indicates that the oviraptorid clutch has a unique architecture unknown from extant bird clutches, implying an apomorphic nesting mode. Such a unique nest architecture further contradicts the TCI hypothesis in oviraptorids, hindering sufficient heat transfer to the inner (lower) ring(s) of eggs. Moreover, the size of the new oviraptorid clutches (>30 eggs) is significantly larger than that of the adult-associated clutches (<22 eggs), raising the alternative hypothesis that the adult-associated clutches were uncompleted. This clue thus supports the hypothesis that the clutch-associated oviraptorid adults possibly represent females after an oviposition before a catastrophic sandstorm/flooding burial.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 9.

Tytuł:: Polish Journal of Chemistry. T. 74, no.11 (2000)
Synthesis, spectroscopic characterization and magnetic properties of nickel(II), cobalt(II) and manganese(II) complexes containing 4-amino-3,5-dimethyl-1,2,4-triazole and n-bridging thiocyanate
Autorzy:: Cheng P.
Jiang Z.-H
Liu X.
Tang, J.-K.
Wang, H.-M.
Cheng, P.
Liao D.-Z
Liao, D.-Z.
Jiang, Z.-H.
Yan, S.-P.
Yan S.-P.
Wang H.-M
Liu, X.
Tang J.-K.
Współwytwórcy:: Polska Akademia Nauk. Komitet Nauk Chemicznych.
Polskie Towarzystwo Chemiczne.
Wydawca:: Instytut Chemii Fizycznej PAN.
Institiute of Physical Chemistry PAS
Powiązania:: Polish Journal of Chemistry
Opis:: p. 1651-1654
s. 1651-1654
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 10.

Tytuł:: SiPM-matrix readout of two-phase argon detectors using electroluminescence in the visible and near infrared range
Autorzy:: Raffaelli, F.
Regenfus, C.
Bonivento, W.
Grab, Magdalena
Thorpe, T.
Stracka, S.
Candela, A.
Ave, M.
Sheshukov, A.
Scapparone, E.
Pelliccia, N.
Liqiang, Q.
Vogelaar, R. B.
Antonioli, P.
Arcelli, S.
Canci, N.
Giorgi, M. A.
Semenov, D. A.
Nania, R.
Froudakis, G. E.
Castellani, A.
Razeti, M.
Cossio, F.
Davini, S.
D’Incecco, M.
Arpaia, P.
Cadeddu, M.
Daniel, M.
Seifert, A.
Cicalò, C.
Pegoraro, P. A.
Dionisi, C.
Ghiano, C.
Maricic, J.
Pandola, L.
Manecki, S.
Ghisi, A.
Segreto, E.
Alton, A. K.
Skorokhvatov, M. D.
Zuffa, M.
Abdelhakim, S.
Viel, S.
Hubaut, F.
Kugathasan, R.
Wu, S.
Hosseini, B.
Miletic, T.
Chashin, S.
Colocci, M.
Gulino, M.
Gabriele, F.
Cifarelli, L.
Palmas, S.
Keeter, K.
Asunskis, A.
Korga, G.
Oleinik, A.
Boulay, M. G.
Cantini, C.
Simeone, M.
Fiorillo, G.
Moggi, A.
Napolitano, T.
Haaland, R. K.
Kondo, K.
Santone, D.
De Falco, A.
Di Stefano, P.
Sulis, S.
Yang, C.
Navrer Agasson, A.
Pellegrino, C.
Cocco, V.
Rescigno, M.
Nowak, J. A.
Pantic, E.
Sobrero, G.
Pelczar, Krzysztof
Ripoli, C.
Derbin, A. V.
Ardito, R.
Ajaj, R.
Wojcik, Ma.
Kopp, G.
Wang, H.
Harrop, B.
Bonfini, G.
Smirnov, O.
Alici, A.
Korablev, D.
Agnes, P.
Di Noto, L.
Mróz, Tomasz
Nessi, M.
Picciau, E.
Cavuoti, S.
Franceschi, A.
La Commara, M.
McDonald, A. B.
Rubbia, A.
Cela Ruiz, J. M.
Rode, J.
Wójcik, Marcin
Sokolov, A.
Kendziora, C. L.
Buzulutskov, A.
Salatino, P.
Mandarano, A.
Hallin, A.
Dadoun, O.
Pollmann, T. R.
Gligan, M. L.
Tuveri, M.
Li, X.
Monroe, J.
Cavalcante, P.
Back, H. O.
Bottino, B.
Giampa, P.
Guan, M.
Covone, G.
Ye, Z.
Gascón Fora, D.
Unzhakov, E. V.
Dellacasa, G.
Mu, W.
Fernandez Diaz, M.
Horikawa, S.
Ortica, F.
Filip, C.
Santorelli, R.
Lissia, M.
Pesudo, V.
Devoto, A.
Mariani, M.
De Rosa, G.
De Cecco, S.
Garbini, M.
Batignani, G.
Frolov, E.
Hackett, B. R.
Ianni, An.
Musico, P.
Portaluppi, D.
Cheng, W.
Pralavorio, P.
Siddhanta, S.
Cariello, M.
Fomenko, K.
Radics, B.
Humble, P.
Oleynikov, V.
Borisova, E.
Rivetti, A.
Da Rocha Rolo, M. D.
Sanfilippo, S.
Carnesecchi, F.
Vacca, A.
Giovanetti, G. K.
Samoylov, O.
Bussino, S.
Di Pietro, G.
Williams, R.
Martinez Rojas, A. D.
Tartaglia, R.
Castello, P.
Franco, D.
Cereseto, R.
Xiao, X.
Coccetti, F.
Guerzoni, M.
Lehnert, B.
Nikulin, I.
Wilson, J.
Suffritti, G. B.
Mason, J.
Orsini, M.
Citterio, M.
Stainforth, R.
Albuquerque, I. F. M.
Tosi, A.
Grobov, A.
Shchagin, A.
Funicello, N.
Bocci, V.
Ippolito, V.
Schlitzer, B.
Strickland, V.
Lai, M.
Messina, A.
Viant, T.
Jillings, C.
Vázquez-Jáuregui, E.
Lussana, R.
Kubankin, A.
Rignanese, L. P.
Martínez, M.
Poudel, S. S.
Vishneva, A.
Wang, Y.
Marinelli, M.
De Pasquale, S.
Lodi, G. U.
De Gruttola, D.
Renshaw, A. L.
Romero, L.
Marras, D.
Tonazzo, A.
Pazzona, F.
Perotti, F.
Downing, M.
Lebois, M.
Mascia, M.
D’Antone, I.
Testera, G.
Cavazza, D.
Gendotti, A.
La Delfa, L.
Edalatfar, F.
Singh, P. N.
Chepurnov, A.
Anstey, J.
Cebrian, S.
Zuzel, Grzegorz
Sala, P.
Crivelli, P.
Westerdale, S.
Kochanek, I.
Muratova, V. N.
Wahl, J.
Bondar, A.
Ragusa, F.
Caravati, M.
Arnquist, I. J.
De Guido, G.
Levashko, N.
Grassi, M.
Amaudruz, P.
Skensved, P.
Bisogni, M. G.
Nosov, V.
Pallavicini, M.
Murphy, S.
Sandford, E.
Masoni, A.
Conde Vilda, E.
Arba, M.
Demontis, P.
Barbaryan, V.
Longo, G.
Gabrieli, A.
Savarese, C.
Muscas, C.
Price, D.
Morrocchi, M.
Graciani Diaz, R.
Galbiati, C.
Grate, J. W.
Garcia Abia, P.
Cadoni, M.
Giganti, C.
Pellegrini, L. A.
Ameli, F.
Pocar, A.
Rescia, S.
Sánchez García, E.
Scioli, G.
Steri, A.
Sotnikov, A.
De Deo, M.
Alexander, T.
Dolganov, G.
Kuss, M.
Gorchakov, O.
Barrado Olmedo, A.
Suvorov, Y.
Giampaolo, R. A.
Consiglio, L.
Moioli, S.
Caminata, A.
Pagani, L.
Guerra, M. B. B.
Retiere, F.
Bunker, R.
Mari, S. M.
Rossi, N.
Sant, M.
Eusanio, F. Di
Pietropaolo, F.
Empl, A.
Walding, J. J.
Machulin, I. N.
Paoloni, E.
Gromov, M.
Hoppe, E. W.
Aalseth, C. E.
Celano, B.
Romani, A.
Mapelli, L.
Asner, D. M.
Szelc, A. M.
Luzzi, L.
Usai, G.
Harańczyk, Małgorzata
Margotti, A.
Wheadon, R. J.
Villa, F.
Machado, A. A.
Hungerford, E. V.
Peeters, S.
Dordei, F.
Ilyasov, A.
Milincic, R.
Opis:: Proportional electroluminescence (EL) in noble gases is used in two-phase detectors for dark matter searches to record (in the gas phase) the ionization signal induced by particle scattering in the liquid phase. The "standard" EL mechanism is considered to be due to noble gas excimer emission in the vacuum ultraviolet (VUV). In addition, there are two alternative mechanisms, producing light in the visible and near infrared (NIR) ranges. The first is due to bremsstrahlung of electrons scattered on neutral atoms ("neutral bremsstrahlung", NBrS). The second, responsible for electron avalanche scintillation in the NIR at higher electric fields, is due to transitions between excited atomic states. In this work, we have for the first time demonstrated two alternative techniques of the optical readout of two-phase argon detectors, in the visible and NIR range, using a silicon photomultiplier matrix and electroluminescence due to either neutral bremsstrahlung or avalanche scintillation. The amplitude yield and position resolution were measured for these readout techniques, which allowed to assess the detection threshold for electron and nuclear recoils in two-phase argon detectors for dark matter searches. To the best of our knowledge, this is the first practical application of the NBrS effect in detection science.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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