Arid

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下扬子地区幕府山组古环境和构造背景:来自细粒混积沉积岩系元素地球化学的证据 期刊论文
发表期刊: 地质学报. 出版年: 2021, 卷号: 95, 期号: 6, 页码: 0001-5717
作者:  周江羽;  陈建文;  张玉玺;  张银国;  张悦;  刘甜怡;  万雪芳
收藏  |  浏览/下载:42/0  |  提交时间:2021/11/19
the ancient climate  the ancient environment  elemental geochemistry  source tectonic background  fine-grained mixed-siliciclastic-calcareous deposits series  the Mufushan Formation  Lower Yangtze area  
Assessment of hydrochemical backgrounds and threshold values of groundwater in a part of desert area, Rajasthan, India 期刊论文
发表期刊: ENVIRONMENTAL POLLUTION. 出版年: 2020, 卷号: 266
作者:  Rahman, Abdur;  Tiwari, K. K.;  Mondal, N. C.
收藏  |  浏览/下载:20/0  |  提交时间:2021/01/07
Hydrochemistry  Natural background  Threshold value  Pollution  Desert area  Rajasthan  
藏北可可西里地区土壤元素背景值研究 期刊论文
发表期刊: 环境科学. 出版年: 2014, 卷号: 35, 期号: 4, 页码: 1498-1501
作者:  柏建坤;  王建力;  李潮流;  康世昌;  陈鹏飞
收藏  |  浏览/下载:22/0  |  提交时间:2019/11/29
Hoh Xil area  soil elements  background values  EOF analysis  North Tibet  
Performance enhancement techniques for low power digital phase locked loops 学位论文
出版年: 2012
作者:  Elshazly;Amr
收藏  |  浏览/下载:26/0  |  提交时间:2019/11/29
Phase locked loops  Delay locked loops  Supply noise mitigation  Background calibration  Digital PLL  Supply noise  Time to digital converter  TDC  Switched ring oscillator  SRO-TDC  Digital circuits  Low power  Area efficient  Digitally controlled oscillator  Performance enhancement techniques  Integrated circuits  Frequency synthesizers  Clock multipliers  Integrated circuits  Microelectronics  Analog and mixed  Circuits and systems  Analog  Digital  Solid state circuit  Phase-locked loops  Electronic noise -- Prevention  Low voltage systems  Frequency synthesizers  
Application of Background Information Database in Trend Change of Agricultural Land Area of Guangxi 会议论文
会议名称: 4th IFIP TC 12 Conference on Computer and Computing Technologies in Agriculture. 会议地点: Nanchang, PEOPLES R CHINA. 会议日期: OCT 22-25, 2010
作者:  Yang, Xin;  Zhong, Shiquan;  Li, Yuhong;  Lu, Weiping;  Wu, Chaohui
收藏  |  浏览/下载:12/0  |  提交时间:2019/12/09
background information  agricultural land area  trend change  
Application of Background Information Database in Trend Change of Agricultural Land Area of Guangxi 会议论文
会议名称: 4th IFIP TC 12 Conference on Computer and Computing Technologies in Agriculture. 会议地点: Nanchang, PEOPLES R CHINA. 会议日期: OCT 22-25, 2010
作者:  Yang, Xin;  Zhong, Shiquan;  Li, Yuhong;  Lu, Weiping;  Wu, Chaohui
收藏  |  浏览/下载:19/0  |  提交时间:2019/12/09
background information  agricultural land area  trend change  
Distribution of heavy metals in atmospheric air of the arid zones in Central Asia 期刊论文
发表期刊: AIR QUALITY ATMOSPHERE AND HEALTH. 出版年: 2010, 卷号: 3, 期号: 4, 页码: 183-194
作者:  Kulmatov, Rashid;  Hojamberdiev, Mirabbos
收藏  |  浏览/下载:13/0  |  提交时间:2019/11/29
Background area  Abramov Glacier  Contamination  Heavy metals  Particulate matter  Size distribution  Neutron activation analysis  
Background ozone in the southern Europe and Mediterranean area: Influence of the transport processes 期刊论文
发表期刊: ENVIRONMENTAL POLLUTION. 出版年: 2009, 卷号: 157, 期号: 5, 页码: 1399-1406
作者:  Cristofanelli, Paolo;  Bonasoni, Paolo
收藏  |  浏览/下载:19/0  |  提交时间:2019/11/28
Background ozone  Pollution  Stratospheric intrusions  Mineral dust  Mediterranean area  
Dust particles in the free atmosphere over desert areas on the Asian continent: Measurements from summer 2001 to summer 2002 with balloon-borne optical particle counter and lidar, Dunhuang, China 期刊论文
发表期刊: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES. 出版年: 2004, 卷号: 109, 期号: D19
作者:  Kim, YS;  Iwasaka, Y;  Shi, GY;  Nagatani, T;  Shibata, T;  Trochkin, D;  Matsuki, A;  Yamada, M;  Chen, B;  Zhang, D;  Nagatani, M;  Nakata, H
收藏  |  浏览/下载:28/0  |  提交时间:2019/11/28
balloon-borne measurements  lidar  Asian dust aerosols  desert area  background Kosa