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Your search keyword '"Xing, Fei-Fei"' showing total 28 results
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28 results on '"Xing, Fei-Fei"'

1. Application of Edge Computing in S7-1200 Data Acquisition System

Author

Jun, Ji, Zhou, Hai-Jun, Xing, Fei-Fei, Cheng, Guan-Hong, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Yadav, Sanjay, editor, Arya, Yogendra, editor, Muhamad, Nor Asiah, editor, and Sebaa, Karim, editor

Published
2024
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8. Chemical constituents of Viscum coloratum (Kom.) Nakai and their cytotoxic activities.

Author

Chen, Ying-Ying, Hou, Jiang-Ping, Huang, Ling, Khan, Afsar, Xing, Fei-Fei, Zhang, Xiao-Han, Han, De-Feng, Yan, Shi-Li, Cao, Gui-Dong, Jiao, Qi-Yang, Liu, Dejie, Zhu, Xuwei, Hu, Qingwen, and Lou, Hong-Xiang

Subjects
CELL lines
Abstract

A new diarylheptanoid, (1 R,2S,3S,5S)-2,3-dihydroxy-3',3''-dimethoxy-4'-de-O-methylcentrolobine (1) and a new bisabolane-type sesquiterpenoid, (1 R,7S)-1,12,13-trihydroxybisabola-3,10-diene (2), together with nineteen known compounds (3-21) were isolated from the EtOH extract of the stems and branches of Viscum coloratum (Kom.) Nakai. Their structures were elucidated by extensive analysis of 1 D and 2 D NMR spectra and from the HRESIMS. All the compounds were evaluated for their cytotoxic activity against eight human tumor cell lines. [ABSTRACT FROM AUTHOR]

Published
2022
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9. Chemical constituents of Viscum coloratum (Kom.) Nakai and their cytotoxic activities

Author

Chen, Ying-Ying, primary, Hou, Jiang-Ping, additional, Huang, Ling, additional, Khan, Afsar, additional, Xing, Fei-Fei, additional, Zhang, Xiao-Han, additional, Han, De-Feng, additional, Yan, Shi-Li, additional, Cao, Gui-Dong, additional, Jiao, Qi-Yang, additional, Liu, Dejie, additional, Zhu, Xuwei, additional, Hu, Qingwen, additional, and Lou, Hong-Xiang, additional

Published
2020
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15. A deterministic algorithm for generating optimal three- stage layouts of homogenous strip pieces

Author

Ji, Jun, Xing, Fei-Fei, Du, Jun, Shi, Ning, and Cui, Yao-Dong

Subjects
Two-dimensional layout, Programació dinàmica, Optimització matemàtica, Mathematical optimization, Dynamic programming recursion, Economia i organització d'empreses::Direcció d’operacions [Àrees temàtiques de la UPC], Dynamic programming, Homogenous strip
Abstract

Purpose: The time required by the algorithms for general layouts to solve the large-scale two-dimensional cutting problems may become unaffordable. So this paper presents an exact algorithm to solve above problems. Design/methodology/approach: The algorithm uses the dynamic programming algorithm to generate the optimal homogenous strips, solves the knapsack problem to determine the optimal layout of the homogenous strip in the composite strip and the composite strip in the segment, and optimally selects the enumerated segments to compose the three-stage layout. Findings: The algorithm not only meets the shearing and punching process need, but also achieves good results within reasonable time. Originality/value: The algorithm is tested through 43 large-scale benchmark problems. The number of optimal solutions is 39 for this paper’s algorithm; the rate of the rest 4 problem’s solution value and the optimal solution is 99. 9%, and the average consumed time is only 2. 18seconds. This paper’s pattern is used to simplify the cutting process. Compared with the classic three-stage, the two-segment and the T-shape algorithms, the solutions of the algorithm are better than that of the above three algorithms. Experimental results show that the algorithm to solve a large-scale piece packing quickly and efficiency.

Published
2014

26. High-performance n-channel organic thin-film transistors based on the dual effects of heterojunction and surface modification

Author

Zhang Jian-hua, Hong Fei, Cao Jin, Guo Xin-An, Wang Jun, Zhang Hao, Xing Fei-Fei, Wei Bin, and Gu Wen

Subjects
Materials science, business.industry, Transistor, General Physics and Astronomy, Heterojunction, Insulator (electricity), law.invention, Pentacene, chemistry.chemical_compound, chemistry, Thin-film transistor, law, N channel, Surface modification, Optoelectronics, Drain current, business
Abstract

This paper presents two n-channel organic heterojunction transistors with modified insulator by using hexadecafluorophthalocyaninatocopper (F16CuPc)/copper phthalocyanine (CuPc) and F16CuPc/pentacene as the active layers. Compared with a single-layer device, it reports that an improved field-effect mobility and a 6-fold higher drain current are observed. The highest mobility of 0.081 cm2/(V s) was obtained from F16CuPc/CuPc heterojunction devices. This result is attributed to the dual effects of the organic heterojunction and interface modification. Furthermore, for two heterojunction devices, the performance of the F16CuPc/CuPc-based transistor is better than that of F16CuPc/pentacene. This is attributed to the morphologic match of two organic components.

Published
2010

27. Experimental Study of Magnetic Liquid Seal with Large Gap and Multiple Magnetic Sources.

Author

YANG Xiao-long, LI De-cai, and XING Fei-fei

Subjects
*MAGNETIC fluids, *SEALING (Technology), *CAULKING, *LEAKAGE, *SELF-healing materials
Abstract

In some special applications, especially in the military industry, a magnetic liquid sealing technique is needed to solve the problem of leakage in the large gap. To improve and verify the pressure capability of magnetic liquid seal with large gaps, a magnetic liquid sealing structure with multiple magnetic sources is designed. The sealing capability and self-healing capability of magnetic liquid seal with multiple magnetic sources with 0.4 mm, 0.5 mm, 0.6 mm and 0.7 mm gaps are investigated by using experimental methods. The relations between the experimental results of magnetic liquid seal with multiple magnetic source and the theoretical results of magnetic liquid seal with single magnetic source are analyzed. The results show that the sealing capability and self-healing capability of magnetic liquid seal with multiple magnetic source decrease with the increase in gap height; the pressure capabilities of magnetic liquid seal with multiple magnetic source are 4. 7 , 3. 8 , 2. 8 and 2. 5 times of that of a magnetic liquid seal with single magnetic source for four different sealing gaps. In addition, the magnetic liquid seals with large gaps and multiple magnetic sources have good self-healing capabilities. [ABSTRACT FROM AUTHOR]

Published
2013
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28. Clinical significance and prognosis of fetal arrhythmias.

Author

Fan QB, Gai MY, Yang JQ, and Xing FF

Subjects
Echocardiography, Female, Follow-Up Studies, Heart Auscultation methods, Humans, Infant, Newborn, Pregnancy, Prognosis, Retrospective Studies, Ultrasonography, Prenatal, Arrhythmias, Cardiac diagnosis, Fetal Diseases diagnosis, Prenatal Diagnosis
Abstract

Objective: To explore fetal arrhythmia clinical significance and its correlation with fetal prognosis., Methods: Twenty-six cases of fetal arrhythmia detected among 12,799 pregnant women recorded over a ten-year period in Peking Uinon Medical College (PUMC) Hospital were reviewed retrospectively. Fetal arrhythmia was diagnosed by fetal auscultation, ultrasonography, electric fetal heart monitoring, and fetal echocardiography., Results: Twenty-six fetuses were documented with fetal arrhythmia (3 tachycardia, 4 bradycardia, 19 normal heart rate with irregular fetal cardiac rhythm). The incidence of fetal arrhythmia in our hospital was 0.2%. They were diagnosed at the average of 35 weeks' gestation (15 to 41 weeks). Twenty-two cases were diagnosed by antenatal fetal auscultation, 1 case was diagnosed by ultrasonography, and 3 cases were diagnosed by electric fetal heart monitoring. Fetal echocardiograms were performed on 17 fetuses, 6 cases (35.3%) of which showed that ventricular premature beats with normal structure of fetal heart. All neonates survived postnatally and 24 of them (92.3%) were followed up. Echocardiograms were performed for 16 neonates and 2 of them were identified as atrial septal defects with normal heart rhythms. The results of follow-up showed that the two patients had no apparent clinical manifestation. The echocardiogram showed that atrial septal defect obliterated already., Conclusion: The prognosis is well for most of the fetuses with arrhythmias, with low incidence of heart deformation.

Published
2004

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