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Search Results: 1 - 10 of 16 matches for " Urumqi "
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Application of Homomorphic Technologyin in Infrared Images Processing
同态技术在红外图像处理中的应用

(Information Science &,Engineering,University of Xinjiang,Urumqi,
郑刚

光子学报 , 2005,
Abstract: In order to improve the contrast of infrared image,a method of homomorphic filtering for image enhancement is proposed. By use of the method, the influences of noises are reduced and the contrast and quality of original images improved. A good foundation is built in order to collect the characteristic information in the images further. The computer simulation and experiment results show that homomorphic filtering is an efficient method for contrast enhancement of infrared images.
Mobility of Holes in CoMnNiO Amorphous Film Deposited by R. F. Sputtering
射频溅射CoMnNiO非晶薄膜中空穴的迁移率

Tao Mingde/Xinjiang Institute of Physics,Academia Sinica,Urumqi Tan Hui/Xinjiang Institute of Physics,Academia Sinica,Urumqi Qin Dong/Xinjiang Institute of Physics,Academia Sinica,Urumqi Han Ying/Xinjiang Institute of Physics,Academia Sinica,Urumqi,
陶明德
,谭辉,秦东,韩英

半导体学报 , 1990,
Abstract: The mobility of holes in amorphous CoMnNiO film is calculated from the measurement of do conductivity and thermo-emf of the film in the temperature range of 200-300 K. The results show that the mobility of holes at 330 K is of 1.25cm~2v~(-1)s~(-1)and thermally activated. It is concluded that band tail hopping conduction in amorphous CoMnNiO film will occur at 300 K.
OXIDATION BEHAVIOUR OF HIGH Cr CAST IRON
ZHANG Anfeng Xinjiang Engineering College,Urumqi,ChinaXING Jiandong LU Wenhua Xi'an Jiaotong University,Xi'an,China associate professor,
ZHANG Anfeng Xinjiang Engineering College
,Urumqi,China XING Jiandong LU Wenhua Xi''''an Jiaotong University,Xi''''an,China associate professor

金属学报(英文版) , 1993,
Abstract: The oxidation behaviour of high Cr Cast iron was investigated at 950 and 800℃ in termsof Cr content in matrix and the amount of carbide.The morphology and types of oxidefilms and the microstructure of subsurface were also examined.The main conclusionsare:1)The original chromium content in the matrix determines the type of oxide filmand it is an important factor for the oxidation resistance of high chromium cast iron;2)The oxidation resistance improves with increasing carbide content at 950℃ because ofthe decomposition of the carbide,while the decompsition of the carbide do not take placeat 800℃ so the oxidation resisteance do not improve with increasing carbide volume.
Prowess of geology study in Xinjiang and its adjacent regions.
新疆及邻区地质与矿产研究进展

ZHU YongFeng,WANG Tao,XU Xin,Institute of Geology,Chinese Academy of Geological Sciences,Beijing,China,Xinjiang Resource,Environment Centre,Urumqi,China,
朱永峰
,王涛,徐新

中国科技期刊研究 , 2007,
Abstract: 1 最近20年发表的有关新疆地质与矿产的科学论文国家305项目的实施大大地推动了新疆地质研究与矿产资源勘查的深入,为我国西部大开发提供了强有力的基础支撑。由中华人民共和国科学技术部资助的国家科技攻关项目、国家科技支撑计划重点项目和国家973项目(国家305项目办公室组织实施)
Nonlinear Optical Refractive and Absorption Properties of a Novel Amorphous Molecular Material
一种新型非晶态分子材料的非线性光学折射率和吸收特性

Zhou Jun,Jia Zhenhong Institute of Engineering Physics,Shandong University of Science & Technology,Taian School of Electronics & Information Science,Xinjiang University,Urumqi,
周骏
,贾振红

光子学报 , 2003,
Abstract: 用单光束扫描法测量了在532nm处一种新型非晶态分子材料5,5′-Bis(dimesitylboryl)—2,2′—bithiophene的非线性折射率和吸收系数,样品非线性透射特性的分析表明,在靠近线性吸收区的532nm处有饱和吸收存在,由三能级饱和模型和Z—scan法确定了饱和强度、非线性折射率的实部和虚部。研究结果表明:这种新型非晶态分子材料具有非常好的光子学应用前景。
Effects of cultivation on organic carbon fractionation and aggregate stability in Xinjiang oasis soils
垦殖对新疆绿洲农田土壤有机碳组分及团聚体稳定性的影响

XU Wanli,TANG Guangmu,SHENG Ji,ong,LIANG Zhi,ZHOU Bo,ZHU Min Institute of Soil,Fertilizer & Agricultural Sparing Water,Xinjiang Academy of Agricultural Science,Urumqi,China Faculty of Glassl,&Environment Sciences,Xinjiang Agricultural University,Xijiang Urumqi,China,
徐万里
,唐光木,盛建东,梁智,周勃,朱敏

生态学报 , 2010,
Abstract: Soil organic carbon is an important indicator of soil quality, and labile organic carbon fractions play an important role in soil quality development. In this study, fractionation of labile soil organic carbon was performed to evaluate the effects of cultivation practices on the changes of organic carbon and aggregate stability in soils of the desert area. The results showed that organic carbon content significantly increased in 1-5 years after the low organic matter natural soil was converted to cotton field, with an mean annual increase of 0.65 g kg-1 or increased by 76%-286%. Soil organic C attained relative balance after 5 years of cultivation. Soil labile organic carbon (LOC) and light fraction organic carbon (LFOC) increased significantly in 1-5years, with an average increment of 72%-99%, but declined after 5 years of cultivation. Particulate organic carbon (POC) significantly increased in 1-10 years of in cultivation, with a maximum increase of 275%, and declined after 10 years of cultivation. Water\|stable aggregates (WSA) in soil increased significantly with cultivation, up to 75% as compared with the original natural soil in 0-20 years. These results indicate that cultivation has an important influence on soil organic carbon pools of the oasis farmland. Long\|term of cultivation of the desert soil tends to decrease labile organic carbon and subsequently may potentially cause degradation of soil quality, which merits further attention.
Physiological and biochemical responses to drought stress during seed germination of Glycyrrhiza inflata
胀果甘草种子萌发对干旱胁迫的生理响应

SHI Wei,XU Hailiang,ZHAO Xinfeng,LING Hongbo,LI Yuan,Xinjiang Institute of Ecology,Geography,Chinese Academy of Sciences,Urumqi,China Graduate School of Chinese Academy of Sciences,Beijing,China,
史薇
,徐海量,赵新风,凌红波,李媛

生态学报 , 2010,
Abstract: 为探讨胀果甘草种子萌发对干旱胁迫的生理生化适应机制,以聚乙二醇(PEG)-6000模拟干旱胁迫,分析了胀果甘草(Glycyrrhiza inflata)种子萌发过程中发芽率(GR)、丙二醛(MDA)及游离脯氨酸(Pro)、可溶性糖(SS)含量和超氧化物歧化酶(SOD)、过氧化物酶(POD)活性的动态变化规律。结果显示,水势为-0.1MPa时,GR达到100%,之后随着干旱胁迫增强而显著降低(P<0.05);MDA、Pro含量及SOD、POD活性都表现出水势≥-0.2MPa时增加和-1.4MPa≤水势<-0.2MPa时减少的明显趋势(P<0.05),这4个指标两两之间的相关关系均达到显著水平(P<0.05);而干旱胁迫增强使SS含量显著增加(P<0.05)。
Thermally Excited Conductivity in Amorphous CoMnNiO Thin Film
CoMnNiO非晶薄膜的热激电导

Tao Mingde/Xinjiang Institute of Physics,Academia Sinica,UrumqiTan Hui/Xinjiang Institute of Physics,Academia Sinica,UrumqiHan Ying/Xinjiang Institute of Physics,Academia Sinica,Urumqi,
陶明德
,谭辉,韩英

半导体学报 , 1990,
Abstract: In this paper, the mechanism of thermally excited conductivity in amorphous CoMnNiOthin film is discussed.
EIGHT SPECIES OF VA MYCORRHIZAL FUNGI FROM NORTHERN CHINA
我国北部的八种VA菌根真菌

ZHANG MEI-QING,WANG YOU-SHAN Institute of Soil & Fertilizer,Beijing Academy of Agricultural Sciences,Beijing HUANG LEI Institute of Microbiology,Xinjiang Academy of Agricultural sciences,Urumqi,
张美庆
,王幼珊,黄磊

菌物学报 , 1992,
Abstract: 本文为继“我国北部的七种VA菌根真菌”之后的续篇,报道了从北京、新疆和吉林分离的八个种:细凹无梗囊霉 Acaulospora sarobiculata Trappe,蜜色无梗囊霉A.Mellea Spaia & Schenck,稍长无梗囊霉A.Longula Spain&Schenck,近明球囊霉 Glomus claroideum Schenck & Smith,集球囊霉G.Fasciculatum (Thaxter) Gerd.& Trappe,emend.Walker & Koske,地球囊霉G. geosporum (Nicol.& Gerd.) Walker,何氏球囊霉G,hoi Berch & Trapp%根内球囊霉 G. intraradix Schenck & Smith。其中,细凹无梗囊霉、蜜色无梗囊霉、稍长无梗囊霉和何氏球囊霉等4个为我国新记录种。本文报道了上述8种的形态特征描述、孢壁组织化学反应及生境状况。
A NEW SPECIES OF PLASMOPARA ON ROSACEAE
轴霜霉一新种——地榆轴霜霉

Li Chunjie Gansu Grassland Ecological Research Institute,Lanzhou,China Yuan Ziqing Zhao Zhenyu Xinjiang August st Agricultural College,Urumqi,China,
李春杰
,袁自清,赵震宇

菌物学报 , 1995,
Abstract: Plasmopara sanguisorbae C. J. Li, Z. Q. Yuan et Z. Y. Zhao sp. nov. on Sanguisorba officinalis L. collected from Xinjiang is reported. It is first record of Plasmopara parasitizing on the family of Rosaceae. Latin and Chinese diagnoses are given for the new taxon. Type specimen is deposited in Herbarium of Mycology, August 1st Agricultural College (HMAAC 001210), Xinjiang, China.
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