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Search Results: 1 - 10 of 131915 matches for " ZHANG Jin-Xi "
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A Study of Pungency of Capsaicinoid as Affected by Their Molecular Structure Alteration  [PDF]
Jun-Lian WANG, Zheng-hong PENG, Sheng-ze ZHOU, Jin-xi Zhang, Song-fei Zhang, Xiang-feng ZHOU, Xiao-bin ZHANG, Bi-xian PENG
Pharmacology & Pharmacy (PP) , 2011, DOI: 10.4236/pp.2011.23014
Abstract: An attempt was made in an effort to synthesize a series of capsaicinoids, most of which are synthesized in our laboratory and characterized to be completely new members of capsaicinoids. The Structure-pungency dependence are presented and discussed.
Temperature Influence on Divergence Angles of Quartz Crystal Wollaston Prism

ZHAO Shuang,WU Fu-Quan,ZHANG Dong-Sheng,ZHAO Xin,WANG Jin-Xi,XUE Mei,ZHONG Wei-Gang,

中国物理快报 , 2008,
Abstract: We propose a structural angle and main refractive indices as two key factors to understand the temperature influence on the divergence angles of the Wollaston prism. The temperature influence on the divergence angles of quartz crystal Wollaston prism is studied theoretically. The results show that divergence angles decrease with increasing temperature, while the divergence angle of e-light decrease more quickly than that of o-light. The testing system is established to verify the above results, and the experimental results are in agreement well with the theoretical analysis.
Zonal Parallel Algorithm of Load-balancing on Nonuniform Domain Simulation of Reservoir

SHU Ji-wu,ZHAO Jin-xi,ZHOU Wei-si,ZHANG De-fu,

软件学报 , 1999,
Abstract: Based on the distributed parallel environment, for one of the nonuniform domain numerical simulation problems of reservoir, the authors give a load-balance model of parallel computing and a zonal parallel algorithm of load-balance using domain decomposition method, so some well and effective solutions which balancly map the nonuniform domain numerical simaulation of reservoir to parallel environment are found. In the study of block oil reservoir numerical simulation parallel software, the practical results show that the zonal parallel algorithm can improve the performance in speedup.
Helium production from 84Kr-- and 197Au--emulsion interactions at high energies

Zhang Dong-Hai,Cheng Jin-Xi,Cheng Bin,Wang Fang,Wang Qi,Zhang Hai-Qing,Xu Rong,Jia Hui-Ming,Li Xue-Qin,

中国物理 B , 2009,
Abstract: The properties of the relativistic helium fragments produced in interactions of 84Kr at 1.8 A GeV and 197Au at 10.7 A GeV in emulsion are investigated. The experimental results are compared with those obtained from various projectiles with emulsion collisions at different energies. It is found that the multiplicity distribution of helium projectile fragments (HPFs) is well described by the Koba--Nielsen--Olesen (KNO) scaling presentation. The second Mueller moment f2 of the HPF multiplicity distribution is independent of the projectile energy for the same projectile, but it is dependent on the projectile mass number. The value of f2 increases with the increase of projectile mass number Ap. The negative value of f2, when Ap<69, means that the emission of HPFs is anticorrelated, but positive value of f2, when Ap>69, refers to that the emission of HPFs is correlated. The non-zero f2 moment in this experiment implies the strong correlation existing between the HPFs.
The diversity of soil microorganism during different recovery phases of moist evergreen broad-leaved forest in the rainy zone of west China

ZHU Wan-Ze,WANG Jin-Xi,ZHANG Xiu-Yan,LI Deng-Yu,CAI Xiao-Hu,

生态学报 , 2007,
Abstract: 采用时空互代的方法,探讨了崇州市鞍子河自然保护区和邛崃市天台山的常绿阔叶林自然恢复过程中土壤微生物数量、组成、区系和多样性变化,结果表明:(1)不同恢复时期土壤微生物数量存在显著性差异,在植被恢复5~40a期间,土壤细菌和放线菌的数量呈增加趋势,以恢复到40a植被土壤微生物总数、细菌和放线菌的数量较高,分别为1.06×10^6CFUg^-1干土、9.81×10^5CFUg^-1干土和6.8×10^4CFUg^-1干土;真菌以100a次生林较高,为9.01×10^4CFUg^-1干土;植被恢复中细菌占土壤微生物总数的79.06%~93.78%;真菌和放线菌数量分别占4.61%~11.24%和0.52%~15.38%;(2)不同恢复阶段土壤细菌和真菌数量大体上以夏季高,春、秋季较低;放线菌数量为春、秋季较夏季高;(3)植被恢复过程中,土壤微生物群落区系和优势种群组成不同,经鉴定有细菌10个属、真菌7个属、放线菌9个属,细菌以无色细菌属(Achromobater)、棒状杆菌属(Corynebacterium)、短杆菌属(Brevibacterium)和芽孢杆菌属(Bacillus)出现的几率较高;真菌主要是半知菌类和接合菌类,以木霉属(Trichoderma)、腐霉属(Pythium)、青霉属(Penicillium)和犁头霉属(Absidia)分布较为普遍;放线菌9个类群中8个属于链霉菌属(Streptomyces),仅有1个类群属于小单孢菌属(Micromonospora),以白孢类群(Albosporus)、金色类群(Aureus)和灰红紫类群(Griseorubroviolaceus)出现几率为较高;(4)细菌属的Shannon—Wiener指数、Simpson指数以恢复初期、30a生次生林和较原始植被为较高。在植被恢复5~50a期间,真菌和放线菌属的多样性呈波动性增加趋势,到50a达到最高;50a以后,呈下降趋势,表明植被恢复的30~50a土壤环境更适合真菌和放线菌的生长。
Co-fermentated with Beauveria bassiana and Verticillium lecanii

LIU Jin-Xi,DU Wen-Jing,LI Jing,WU Jian-Rong,LI N,DING Pin,ZHANG Jian-Jun,

微生物学通报 , 2012,
Abstract: Objective] Both Beauveria bassiana and Verticillium lecanii are insecticide fungus for biological pest control in the using of study at home and abroad. In order to extend the scope and strengthen the effect of prevention and reduce the cost of biological pest control. co-fermentation have been applied in this investigation. Methods] The feasibility of co-fermentation have been studied through comparing sporulation capacity, indoor antibiotic activities of two mixed strains. Results] Results showed that the best ratio at 1:1 of Verticil-lium lecanii L-31 and Beauveria bassiana Q-55 by co-fermentation. Taked 10% from every inocu-lated in fermentation medium (Fermentation medium were prepared by yeast extract 5.0 g/L, glu-cose 20.0 g/L, malt extract 5.0 g/L, KH2PO4 3.0 g/L, millet 200.0 g/L, pH 6.5), 23.0 °C±0.1 °C fermentation temperature 12 d standed the total of spore-containing fermentation broth could reached 1 × 109 CFU/mL or more and have the stronger insecticide toxicity. It had inhibited effect on both Trialeurodes vaporariorum and Pieris rapae L. 9 d after treatment of the lethal concentration LC50 were 2.09×104±0.12 CFU/mL and 3.17×105±0.11 CFU/mL, broth con-centration 1×108 CFU/mL at the time of death in the LT50 was 2.11±0.14 d and 4.27±0.43 d, correct anti-greenhouse effect in the plot experiment more than 80%, having significant dif-ference with the single strain fermentation control effect. Conclusion] It provides a scientific basis for further application of the two insecticidal funguses and a reference efficiency way for Spread-spectrum anti-fungal for spread spectrum efficiency of fungal biocontrol agents.
Analysis of ecological and environmental effects of coordination of farming and animal husbandry of "rice-ryegrass-goose"

ZHANG Wei-Jian,FENG Jin-Xi,ZHENG Jian-Chu,WU Kui,LI Xiao-Mei,
,冯金侠,郑建初,吴 魁,李小妹

中国生态农业学报 , 2001,
Abstract: 1997-1999年田间试验研究表明,冬种黑麦草养殖菜鹅的稻/牧草-鹅农牧结合生产模式在不施除草剂的情况下能控制田间冬季杂草,实施该模式后翌年冬闲时田间杂草群落密度仅为稻/麦对照模式的8.88%,且冬季田间杂草群落结构发生变化,“看麦娘”、“猪殃殃”、“大巢菜”分别占15.38%、30.77%和30.77%,即单子叶杂草所占比例明显低于稻/麦复种连作田。该模式比稻/麦复种连作方式土壤总N、有机质、速效氮、速效磷、速效钾含量分别高23.13%、27.10%、31.25%、98.37%和46.73%,土壤理化性状明显改善,且可减少除草剂、杀虫剂施用量,降低土壤有毒物的残留。总结了该模式的系统耦合技术并提出该模式的发展策略。
SNP analysis of the fragments of three functional genes of the mushroom Lentinula edodes

WANG Da-Li,ZHANG Jin-Xi,BIAN Yin-Bing,CHEN Qiang,HUANG Chen-Yang,

菌物学报 , 2013,
Abstract: 以15个香菇栽培品种为材料,对尿嘧啶核苷酸-胞嘧啶核苷酸激酶基因(UMP-CMP kinase gene,uck1)、分裂原活化蛋白激酶基因(mitogen-activated protein kinase gene,mapk)和外切β-1,3葡聚糖酶基因(exo-β-1,3-glucanase-encoding gene,exg1)进行了部分序列的单核苷酸多态性(single nucleotide polymorphism,SNP)分析。结果表明,测序中出现的双峰,是菌丝双核体细胞中两细胞核之间的差异造成的。在采用uck1、mapk和exg1的3,126bp中,共发现48处多态性位点,发生频率为1/65bp,其中36个属于转换、12个为颠换。从群体发生频率上,38个属于超过10%的常见SNP,10个属于罕见SNP。不同基因的SNP发生频率不同,uck1、mapk和exg1的SNP发生频率分别为1.40%、0.82%和2.41%。外显子区SNP数量高于内含子,3个基因在外显子区域分布28个,内含子分布20个。外显子的28个SNP位点中,11个为错义突变,17个为同义突变。错义突变引起了编码氨基酸的改变。对SNP位点的聚类分析表明,15个栽培品种间存在的多态性位点在1–36之间,15个品种的SNP类型不同。uck1,mapk,exg1的SNP可用于香菇栽培品种的鉴别。
Seismic exploration acquisition technique application of Beach shallow sea

XU Jin-xi,

地球物理学进展 , 2005,
Abstract: For Shengli oilfield, Exploration in beach and shallow sea area is different from land and sea exploration for special surface and complex surface structure, especially, there are two work modes of offshore exploration and land exploration in this area. The key is how to take measure to ensure data consistent in explode and receive of seismic wave, and how to optimize layout design for pieced together these seismic data of beach shallow sea area. Therefore, relying on the emphases fundamental research lab of geophysical exploration of SINOPEC, a great deal of test had achieved in exploding and receiving and optimizing layout design, the seismic exploration technique of beach shallow sea has formed. In many beach shallow sea for instance Kendong and Jidong etc, these technologies have applied such as near-surface layer investigation and geophone accurate positioning technology etc, then the signal\|to\|noise ratio of seismic datum has effectively raised, and the precision of seismic imaging has improved. As a result having gained very good seismic exploration effect.
Jin-Xi Chen,Wei-Wei Meng
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536809051666
Abstract: In the title coordination polymer, [Zn5(μ3-OH)2(1,4-CDC)4]n (1,4-CDCH2 = 1,4-cyclohexanedicarboxylic acid) or [Zn5(C8H10O4)4(OH)2]n, the asymmetric unit comprises one half of an octahedrally coordinated ZnO6 complex unit (site symmetry overline1) and two five-coordinate ZnO5 complex units, together with two μ3-bridging hydroxido ligands and four 1,4-CDC ligands (comprising two whole molecules and four inversion-related half-molecules). The ZnO6 unit consists of four carboxylate O donors (two bridging) and two hydroxido O donors (both bridging three Zn centres) [Zn—O range 2.065 (3)–2.125 (3) ]. Each of the ZnO5 units [one capped tetrahedral, the other square-pyrimidal; Zn—O range 1.928 (3)–2.338 (3) ] has one hydroxido O donor and four carboxyl O donors from three different 1,4-CDC carboxylate O donors (one bridging). Infinite (ZnO)n inorganic chains run parallel to the a axis and are interconnected by the organic ligands into a three-dimensional structure.
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