oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 21 )

2018 ( 1110 )

2017 ( 1057 )

2016 ( 1014 )

Custom range...

Search Results: 1 - 10 of 82838 matches for " WEN Xiao-Jin "
All listed articles are free for downloading (OA Articles)
Page 1 /82838
Display every page Item
(E)-2-(4-Chlorophenoxy)-N′-(pyridin-4-ylmethylidene)acetohydrazide
Xiao-jin Rao,Wen-Shi Wu,Chuan-hui Li,Yu-min Huang
Acta Crystallographica Section E , 2013, DOI: 10.1107/s1600536812045989
Abstract: In the title compound, C14H12ClN3O2, the acylhydrazone base [C(=O)—N—N=C] is essentially planar, with an r.m.s. deviation of 0.0095 , and makes a dihedral angle of 12.52 (10)°with the pyridine ring. In the crystal, molecules are linked via pairs of N—H...O hydrogen bonds, forming inversion dimers with an R22(8) graph-set motif. The dimers are linked via C—H...π interactions forming chains along [101].
End-Pumped Tm:YAG Ceramic Slab Lasers

CHENG Xiao-Jin,XU Jian-Qiu,ZHANG Wen-Xin,JIANG Ben-Xue,PAN Yu-Bai,

中国物理快报 , 2009,
Abstract: Lasers from a Tm:YAG ceramic aare reported for the first time to our best knowledge. The Tm:YAG ceramic slab is end-pumped by a laser diode with central wavelength 792nm. At room temperature, the maximum continuous-wave output power is 4.5W, and the sloping efficiency is obtained to be 20.5%. The laser spectrum of the Tm:YAG ceramic is centered at 2015nm.
Utilization zoning of cultivated land based on net primary productivity in Guanzhong-Tianshui Economic Region
基于净初级生产力的关中--天水经济区耕地 利用分区研究

YANG Hai-Juan,WEN Xiao-Jin,LIU Yan-Xu,
杨海娟
,温晓金,刘焱序

中国生态农业学报 , 2013,
Abstract: As a populous nation, improve grain production capacity along with rational use and protection of cultivated land resources has posed a considerable challenge in domestic agriculture and land related research in China. Higher NPP for cultivated lands has suggested the existence of more organic biomass. This has been critical for the final production of food crops in the country. It was therefore likely for research on NPP to provide the basis for resolving food security issues. Functional zoning has been the commonly used method to guarantee sustainable use of land. Presently, however, heavily fragmented research merely described real supply of cultivated lands. A deeper understand on the potential reserves of cultivated lands was needed in this regard. Based on remote sensing observation, it is possible to have statistics of the output of a large number of cultivated lands within a short time. Compared with the yearbook data, remote sensing observation has advantages including timeliness and spatial precision. Remote sensing observations have therefore been strongly supplemental to statistical data. NPP estimated by remote sensing was used as crop biomass in cultivated lands instead of the traditional calculations based statistics data. Cultivated land in the Guanzhong-Tianshui Economic Region (GTER) was zoned by using neural network algorithm model and remote sensing data in 2001-2009 substituting for statistic crop yield data. Then the wavelet neural network was used to predict the NPP in the zoned regions. Three results were eventually attained. 1) From 2002 to 2009, total estimated NPP per year in GTER was 1.6×107 t. It showed large variation patterns between estimated NPP data and statistics grain data for cultivated lands in GTER. This suggested statistical and remote sensing data were not substitutable for one another. As clustering function was unknown, zoning via estimated NPP data reflected a more universal adaptability than via statistical data. 2) The final zonal type relatively corresponsed with common cognitions in the study area. It was important to emphasize counties in central GTER and Weihe River Valley (WRV) in the agriculture development of GTER. It was also important for government to set up precision agriculture and agricultural integration in these zones. 3) The prediction calculation by the wavelet neural network showed higher per unit area NPP as the principal trend in 2010 to 2015. Because of the reflected fluctuation patterns varied considerably for different data, it was important to note the differences in data sources and find the driving factors for the reflection of different pressures in cultivated lands. The discussions on data errors suggested that remote sensing data and statistical data should be compared in the study. As rapidly enhancing total crops biomass increase was difficult in the short term, the most effective way of remitting pressure on croplands was to improve use ratio of crop bio-energy.
Clinical application of subjective global assessment in Chinese patients with gastrointestinal cancer
Bei-Wen Wu, Tao Yin, Wei-Xin Cao, Zhi-Dong Gu, Xiao-Jin Wang, Min Yan, Bing-Ya Liu
World Journal of Gastroenterology , 2009,
Abstract: AIM: To investigate the role of subjective global assessment (SGA) in nutritional assessment and outcome prediction of Chinese patients with gastrointestinal cancer.METHODS: A total of 751 patients diagnosed with gastrointestinal cancer between August 2004 and August 2006 were enrolled in this study. Within 72 h after admission, SGA, anthropometric parameters, and laboratory tests were used to assess the nutritional status of each patient. The outcome variables including hospital stay, complications, and in-hospital medical expenditure were also obtained.RESULTS: Based on the results of SGA, 389 (51.8%), 332 (44.2%), and 30 (4.0%) patients were classified into well nourished group (SGA-A), mildly to moderately malnourished group (SGA-B), and severely malnourished group (SGA-C), respectively. The prevalence of malnutrition classified by SGA, triceps skinfold thickness (TSF), mid-upper arm muscle circumference (MAMC), albumin (ALB), prealbumin (PA), and body mass index (BMI) was 48.2%, 39.4%, 37.7%, 31.3%, 21.7%, and 9.6%, respectively. In addition, ANOVA tests revealed significant differences in body mass index (BMI), TSF, PA, and ALB of patients in different SGA groups. The more severely malnourished the patient was, the lower the levels of BMI, TSF, PA, and ALB were (P < 0.05). χ2 tests showed a significant difference in SGA classification between patients receiving different types of treatment (surgery vs chemotherapy/radiotherapy). As the nutritional status classified by SGA deteriorated, the patients stayed longer in hospital and their medical expenditures increased significantly. Furthermore, multiple regression analysis showed that SGA and serum ALB could help predict the medical expenditures and hospital stay of patients undergoing surgery. The occurrence of complications increased in parallel with the increasing grade of SGA, and was the highest in the SGA-C group (23.3%) and the lowest in the SGA-A group (16.8%).CONCLUSION: SGA is a reliable assessment tool and helps to predict the hospital stay and medical expenditures of Chinese surgical gastrointestinal cancer patients.
Gorenstein代数上的倾斜模的个数
The number of tilting modules over Gorenstein algebras

陈文倩,张孝金,昝立博
CHEN Wen-qian
, ZHANG Xiao-jin, ZAN Li-bo

- , 2018, DOI: 10.6040/j.issn.1671-9352.0.2017.654
Abstract: 摘要: 若A是一个Gorenstein代数,则倾斜右A-模的个数等于倾斜左A-模的个数。给出反例说明自内射维数大于等于2的Gorenstein代数B的经典倾斜右B-模的个数不一定等于经典倾斜左B-模的个数。
Abstract: For a Gorenstein algebra A, the number of tilting right A-modules is equal to the number of tilting left A-modules. A counter-example is given to show that for a Gorenstein algebra B with self-injective dimension no less than 2, the number of classical tilting left B-modules is not necessary to be equal to that of classical tilting right B-modules
Identification and Characterization of an Anti-Fibrotic Benzopyran Compound Isolated from Mangrove-Derived Streptomyces xiamenensis
Min-Juan Xu,Xiao-Jin Liu,Yi-Lei Zhao,Dong Liu,Zhen-Hao Xu,Xiao-Meng Lang,Ping Ao,Wen-Han Lin,Song-Lin Yang,Zhi-Gang Zhang,Jun Xu
Marine Drugs , 2012, DOI: 10.3390/md10030639
Abstract: An anti-fibrotic compound produced by Streptomyces xiamenensis, found in mangrove sediments, was investigated for possible therapeutic effects against fibrosis . The compound, N-[[3,4-dihydro-3 S-hydroxy-2 S-methyl-2-(4¢ R-methyl-3¢ S-pentenyl)- 2H-1-benzopyran-6-yl]carbonyl]-threonine (1), was isolated from crude extracts and its structure, including the absolute configuration was determined by extensive spectroscopic data analyses, Mosher’s method, Marfey’s reagent and quantum mechanical calculations. In terms of biological effects, this compound inhibits the proliferation of human lung fibroblasts (WI26), blocks adhesion of human acute monocytic leukemia cells (THP-1) to a monolayer of WI26 cells, and reduces the contractile capacity of WI26 cells in three-dimensional free-floating collagen gels. Altogether, these data indicate that we have identified a bioactive alkaloid (1) with multiple inhibitory biological effects on lung excessive fibrotic characteristics, that are likely involved in fibrosis, suggesting that this molecule might indeed have therapeutic potential against fibrosis.
口腔氧化锆纳米粉体的制备及性能研究
Preparation and Properties of Zirconia Nano-powders.

郑迎秋,郭晓瑨,王健,许冉冉,吴文慧
ZHENG Ying-qiu
, GUO Xiao-jin, WANG Jian, XU Ran-ran, WU Wen-hui

- , 2017, DOI: 10.13701/j.cnki.kqyxyj.2017.03.024
Abstract: 摘要 目的:探讨盐助溶液燃烧法(Salt-assisted solution Combustion Synthesis ,SSCS)的工艺条件,制备性能优良的3mol%氧化钇(Y2O3)稳定四方相多晶体氧化锆(3Y-TZP)纳米粉体。方法:以硝酸氧锆和尿素为原料,采用SSCS法和冷冻干燥法制备3Y-TZP纳米粉体。利用热重-差热分析(TG-DTA)、 X射线衍射仪(XRD)和透射电镜(TEM)检测分析粉体表征。采用正交试验考察了锆离子的浓度(A)、尿素和金属硝酸盐摩尔比(B)、KCL和金属硝酸盐摩尔比(C)、前驱体的引燃温度(D)对粉体晶粒度的影响。结果:前驱体引燃温度和尿素加入量是最重要的影响因素,最佳的工艺条件是A:0.085 mol/L ,B:1,C:3,D:400 ℃。产物经XRD检测分析为四方相多晶体氧化锆,晶粒度(DXRD)为2.9~9.0 nm。TEM观察在最优工艺水平下制备的粉体形貌为球形、高分散的、低团聚的、平均粒径约为5.38 nm的纳米粉体,与DXRD基本一致。并且随着引燃温度的增加粉体粒径变大,而且团聚加重。结论:通过盐助溶液燃烧法可以制备性能良好的3Y-TZP纳米粉体
Low-temperature tolerance characteristic and ecological evaluation of broad-leaved evergreen tree species
常绿阔叶树种的耐低温特性及其生态学评价

XIE Xiao-Jin,
谢晓金

生态学报 , 2004,
Abstract: Three eco-physiological characteristics including electric conductivity under lower temperature treatment, coldness index and adaptability of growth were used to analysis the ability of 24 broad-leaved evergreen tree species to withstand the rigors of cold temperature. These plants which naturally distributed over the north limit of differently subtropical latitude were introduced to the open in Nanjing. It is found that coldness index based on the meteorological records of the north limit of their natural ...
An Real-time Embedded Control Systems for Liquid-location and Discharge of Boile
Xiao-Jin Fu,Xin-Hua Zhang
IAENG International Journal of Applied Mathematics , 2007,
Abstract:
ISOLATION AND CHARACTERIZATION OF A NOVEL ANTIMICROBIAL PEPTIDE FROM THE GASTROINTESTINAL TRACT OF LARGE YELLOW CROAKER PSEUDOSCIAENA CROCEA
大黄鱼(Pseudosciaena crocea)一种新型抗菌肽的纯化及其生物学特性研究

JI Yong,WANG Xiao-Lu,SU Yong-Quan,QIN Ying-Xue,ZOU Wen-Zheng,XING Yan-Li,XU Xiao-Jin,YAN Qing-Pi,
纪 勇
,王晓露,苏永全,覃映雪,邹文政,邢颜丽,徐晓津,鄢庆枇

海洋与湖沼 , 2011,
Abstract: The purpose of this study was to obtain antimicrobial peptide from the gastrointestinal tract of Pseudo-sciaena crocea. Our results showed that a novel antimicrobial peptide to Vibrio alginolyticus was isolated and purified using acid extraction, solid phase extraction, Sephadex G25 and reverse phase high performance liquid chromatography. The antimicrobial peptide, which was named AMP-W3, contained 10 different amino acids and was enriched in Glu, Gly and Asp. Minimal inhibition concentrations of the pepti...
Page 1 /82838
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.