Autor: Wang, L.P. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Perspectives on novel vaccine development
Autorzy:: Wang, Y.B.
Wang, L.P.
Li, P.
Powiązania:: https://bibliotekanauki.pl/articles/2087687.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: vaccination
vaccinology
novel vaccine development
perspectives
Źródło:: Polish Journal of Veterinary Sciences; 2018, 21, 3; 643-649
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Vibration analysis of ball bearing considering waviness under high speed and an axial load
Autorzy:: Hou, P. P.
Wang, L. Q.
Peng, Q. Y.
Powiązania:: https://bibliotekanauki.pl/articles/201434.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: rotational speed
ball bearing
vibration characteristics
frequency band
RMS
Opis:: Based on the rolling bearing vibration measurement principle in ISO standard, a nonlinear dynamic model of ball bearing is built and motion equations of the inner ring, outer ring, and rolling elements are derived by using Lagrange’s equation. The ball bearing model includes the influence of waviness, rotational speed, external load, arbor supporting stiffness and arbor eccentricity. Ball bearing high-speed vibration tests are performed and used to verify the theoretical results. Simulated results showed that specific waviness orders produced the principal frequencies that were proportional to rotational speed. Rotational speed mainly affected the value of the natural frequency of the bearing system, and RMS (Root Mean Square) of the full band had a great fluctuation with the increase of rotational speed. In the experiment, spectrum and RMS of 2 ƒs-30 kHz (ƒs : the rotational frequency of inner ring/arbor) under high speed could include not only the influence of rotational speed but also principal frequencies produced by waviness, which could cover the part of requirements of the standard bearing vibration measurement.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 3; 517-527
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Retention, recovery and recycling of metal values from high alloyed Steel slags
Retencja, odzysk i recycling metalu z żużli wysokostopowych stali
Autorzy:: Teng, L. D.
Seetharaman, S.
Nzotta, M.
Dong, P. D.
Ge, H. L.
Wang, L. J.
Wang, H. J.
Chychko, A.
Powiązania:: https://bibliotekanauki.pl/articles/353318.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: retencja
odzysk
recykling
żużel
stal chromowa
odwęglanie
retention
recovery
recycling
slag
chromium steel
decarburization
Opis:: The work was carried out in four parallel directions. The thermodynamic activities of oxides of Cr in steel slags were determined by slag-gas equilibration technique. The ratio of Cr2+/Cr3+ in CaO-MgO(-FeO)-AlO3-SiO2-CrO× system slags was measured by X-ray absorption near edge spectra (XANES). High-temperature mass spectrometry method was also used to obtain the distribution of chromium oxides. A mathematical correlation was established for estimating the ratio of Cr2+/Cr3+ as a function of temperature, partial pressure of oxygen and slag basicity. Laboratory investigations of the decarburization of high alloy steels under controlled oxygen potentials have been carried out to retain Cr in the steel phase. A mathematical model has been developed for the decarburization process with controlled oxygen partial pressure. Experimental and theoretical investigations have been carried out in optimizing the Mo-additions to steel in the EAF practice in Uddeholm Tooling AB. Substantial saving of Mo as well as less emissions of Mo-bearing dust are indicated in the study. A salt extraction process was developed to extract the metal values from steel slags. Successful extractions, followed by electrolysis indicate that this could be a viable route towards recovery of metals from metallurgical slags.
Praca była realizowana w czterech równoległych kierunkach. Termodynamiczne aktywności tlenków Cr w żużlu zostały określone w stanie równowagi żużel-gaz. Stosunek Cr2+/Cr3+ w żużlach CaO-MgO-(-FeO)-AlO3-SiO2-CrOx mierzono metodą absorpcji promieniowania rentgenowskiego w pobliżu krawędzi widm (XANES). W celu uzyskania rozdziału tlenków chromu wykorzystano wysokotemperaturową spektrometrię masową. Korelację matematyczną ustalono do oceny stosunku Cr2+/Cr3+, jako funkcji temperatury, ciśnienia parcjalnego tlenu i zasadowości żużla. Badania laboratoryjne odwęglania stali wysokostopowych, kontrolowanego przez potencjał tlenowy przeprowadzono, aby pozostawić Cr w stali. Model matematyczny został opracowany dla procesu odwęglania z kontrolą parcjalnego ciśnienia tlenu. Eksperymentalne i teoretyczne badania zostały przeprowadzone przez optymalizację dodatku Mo do stali w procesie EAF w Uddeholm Tooling AB. Znaczne oszczędności Mo, a także mniejsza emisja pyłu zawierającego Mo są wskazane w badaniu. Proces ekstrakcji soli został stworzony, aby wyodrębnić metal z żużli stalowniczych. Udane ekstrakcje, a następnie elektrolizy, wskazują, że mogłaby to być opłacalna droga do odzysku metali z żużli metalurgicznych.
Źródło:: Archives of Metallurgy and Materials; 2010, 55, 4; 1097-1104
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Internal Friction of Li7La3Zr2O12 Based Lithium Ionic Conductors
Autorzy:: Wang, X. P.
Song, L.
Hu, J.
Xia, Y. P.
Xia, Y.
Gao, Y. X.
Zhang, L. C.
Magalas, L. B.
Fang, Q. F.
Powiązania:: https://bibliotekanauki.pl/articles/958222.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: lithium ionic conductor
Li7La3Zr2O12
internal friction
Opis:: The diffusion mechanisms of lithium ions in tetragonal phase as well as in Al and Nb stabilized cubic Li₇La₃Zr₂O₁₂ compounds were investigated by low-frequency internal friction technique. In the cubic Li₇La₃Zr₂O₁₂ phase, a remarkable relaxation-type internal friction peak PC with a peak height up to 0.12 was observed in the temperature range from 15°C to 60°C. In the tetragonal phase however, the height of the PT peak dropped to 0.01. The obvious difference of the relaxation strength between the cubic and tetragonal phases is due to the different distribution of lithium ions in lattice, ordered in the tetragonal phase and disordered in the cubic phase. Based on the crystalline structure of the cubic garnet-type Li₇La₃Zr₂O₁₂ compound, it is suggested that the high internal friction peak in the cubic phase may be attributed to two diffusion processes of lithium ions: 96h↔96h and 96h↔24d.
Źródło:: Archives of Metallurgy and Materials; 2016, 61, 1; 21-24
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: A multiplex PCR for simultaneous detection of classical swine fever virus, African swine fever virus, highly pathogenic porcine reproductive and respiratory syndrome virus, porcine reproductive and respiratory syndrome virus and pseudorabies in swines
Autorzy:: Hu, L.
Lin, X.Y.
Yang, Z.X.
Yao, X.P.
Li, G.L.
Peng, S.Z.
Wang, Y.
Powiązania:: https://bibliotekanauki.pl/articles/30249.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: In this assay, we developed and evaluated a multiplex PCR (mPCR) for its ability in detecting multiple infections of swine simultaneously. Four pairs of primers were used to detect five viruses. Specific primers were designed for classical swine fever virus (CSFV), African swine fever virus (ASFV) and pseudorabies (PRV). A pair of primers was designed prudently for two different types of porcine reproductive and respiratory syndrome virus that respectively were porcine reproductive and respiratory syndrome virus (PRRSV), highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV). The detection limits of the mPCR were 1.09×10⁴, 1.50×10³, 2.10×10³, 1.30×10³ and 8.97×10² copies/reaction for CSFV, ASFV, HP-PRRSV, PRRSV and PRV, respectively. A total of 49 clinical specimens were tested by the mPCR, and the result showed that co-infection by two or three viruses was 51%. In conclusion, the PCR is a useful tool for clinical diagnosis of not only single infections but also mixed infections in swines.
Źródło:: Polish Journal of Veterinary Sciences; 2015, 18, 4
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Development of a SYBR Green I real-time PCR assay for detection of novel porcine parvovirus 7
Autorzy:: Li, Y.D.
Yu, Z.D.
Bai, C.X.
Zhang, D.
Sun, P.
Peng, M.L
Liu, H.
Wang, J.
Wang, Y.
Powiązania:: https://bibliotekanauki.pl/articles/2087207.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Capsid gene
PPV7
SYBR Green I real-time PCR
Źródło:: Polish Journal of Veterinary Sciences; 2021, 24, 1; 43-49
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Laboratory investigation of self-healing properties on geosynthetic clay liners with flaw
Autorzy:: Zhang, G.-W.
Zhang, H.-Y.
Wang, J.-F.
Zhou, L.
Liu, P.
Jiang, X.
Powiązania:: https://bibliotekanauki.pl/articles/204652.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: landfills
geosynthetic clay liner
self healing
hydraulic conductivity
Opis:: The objective of this paper is to evaluate the self- healing properties of a commercially-available geosynthetic clay liner (GCL) using flexible-wall permeameter. The GCLs are produced by the same factory, but the contents of bentonite are different. Also the hydraulic conductivities (HC) of GCLs with no defect are different. In this study, specimens were completely saturated under the backpressure of 20 kPa before the test. Permeability tests were performed on GCL specimens with penet rating flaw and also on specimens permeated with distilled water and CaCl2 solutions. The test results were presented and discussed. Experimental results showed that the GCL with penetrating flaw did not exhibit complete self-healing in the case of flaw. After 120 days, the hydraulic conductivity increased by approximately an order of magnitude. In addition, CaCl2 solutions had a significant influence on the hydraulic conductivity. The research findings might be of interest to researchers and engineers who design liners for landfills and other liquid containment facilities.
Źródło:: Archives of Environmental Protection; 2015, 41, 1; 53-58
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki