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330 results on '"Shi Peng-Fei"'

2. Research of Fault Diagnosis Method of Asynchronous Motor

Author

SHI Peng-fei

Subjects
asynchronous motor, fault diagnosis, park vector transformation, fourier transformation, wavelet transformatio, Mining engineering. Metallurgy, TN1-997
Abstract

The paper introduced principles of fault diagnosis method based on Park vector transformation, spectrum analysis of stator current based on Fourier transformation and the method based on wavelet transformation, and analyzed and discussed application effects of the three methods in fault diagnosis of three-phase cage type asynchronous motor.

Published
2012

17. Smilax weniae, a New Species of Smilacaceae from Limestone Areas Bordering Guizhou and Guangxi, China

Author

Jie-Ying Feng, Xin-Jie Jin, Sheng-Lu Zhang, Jia-Wen Yang, Shi-Peng Fei, Yu-Song Huang, Yan Liu, Zhe-Chen Qi, and Pan Li

Subjects
Old World, morphological trait, phylogeny, taxonomy, Botany, QK1-989
Abstract

A new species, Smilax weniae (Smilacaceae), from Southwest China, is described and illustrated. The new species bears peltate leaves, which was previously a unique feature of S. luei. However, it differs from the latter by having a broad ovate leaf blade, longer peduncle, and sexual dimorphic flowers. Further phylogenetic analyses revealed that the new species were placed in a unique position in a subclade of Old World Smilax based on ptDNA and nrITS sequences. Combining detailed morphological comparisons and molecular evidence, we validated that S. weniae is an undescribed new species. Moreover, the plastome characteristics of S. weniae are reported.

Published
2022
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21. Tongue-Print: A Novel Biometrics Pattern

Author

Zhang, David, Liu, Zhi, Yan, Jing-qi, Shi, Peng-fei, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Lee, Seong-Whan, editor, and Li, Stan Z., editor

Published
2007
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24. Removal efficiency and influencing factors of antibiotic resistance genes in secondary effluent by the process of NaClO-PAC-UF.

Author

SUN Li-hua, MA Yao, SHI Peng-fei, and FENG Cui-min

Subjects
DRUG resistance in bacteria, SEWAGE disposal plants, OXIDIZING agents, SODIUM hypochlorite, ACTIVATED carbon
Abstract

The secondary effluent of the sewage treatment plant was treated by sodium hypochlorite oxidation combined with powdered activated carbon and ultrafiltration process (NaClO-PAC-UF). The effects of the dosage of NaClO, pH and temperature on the removal of antibiotic resistance genes (ARGs) and dissolved organic carbon (DOC) in the secondary effluent were investigated. The results show that 8.0 mg/L effective chlorine concentration of sodium hypochlorite oxidizing agent was the best removal effect. The removal amount of different types of ARGs (tetA, tetC, tetG, sulI, sulII) in secondary effluent was 103.25 ~ 103.47 copies/mL. The removal effect of cellular and free ARGs was significantly enhanced. The removal rate of DOC by the combined process was up to 57.5 %, and the removal rate of organic matter with different molecular weight was improved overall. Increasing temperature and decreasing pH can improve the removal effect of ARGs by the combined process. [ABSTRACT FROM AUTHOR]

Published
2023

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