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浏览/检索结果: 共16条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Predicting the impact of heavy groundwater pumping on groundwater and ecological environment in the Subei Lake basin, Ordos energy base, Northwestern China 期刊论文  OAI收割 HYDROLOGY RESEARCH, 2018, 卷号: 49, 期号: 4, 页码: 1156-1171 作者:  Liu, Fei;  Song, Xianfang;  Yang, Lihu;  Han, Dongmei;  Zhang, Yinghua   |  收藏  |  浏览/下载：37/0  |  提交时间：2019/05/23 arid areas  groundwater flow model  groundwater pumping  Ordos energy base  water resources management   Macropore- and Micropore-Dominated Carbon Derived from Poly(vinyl alcohol) and Polyvinylpyrrolidone for Supercapacitor and Capacitive Deionization 期刊论文  OAI收割 ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2017, 卷号: 5, 期号: 12, 页码: 11324-11333 作者:  Tang, Kexin;  Chang, Junjun;  Cao, Hongbin;  Su, Chunlei   |  收藏  |  浏览/下载：73/0  |  提交时间：2018/01/19 Macroporous  Microporous  Carbon  Supercapacitor  Capacitive Deionization  Desalination  Salt Concentration  Pumping Energy   Sub-nanosecond periodically poled lithium niobate optical parametric generator and amplifier pumped by an actively Q-switched diode-pumped Nd:YAG microlaser 期刊论文  OAI收割 Laser Physics, 2017, 卷号: 27, 期号: 5, 页码: 055403 作者:  Liu, L.;  Wang, H.Y.;  Ning, Y.;  Shen, C.;  Si, L.   |  收藏  |  浏览/下载：33/0  |  提交时间：2018/11/20 Conversion efficiency - Diodes - Energy conversion - Energy efficiency - Harmonic generation - Light amplifiers - Lithium - Neodymium lasers - Niobium compounds - Optical pumping - Phase matching - Pumping (laser) - Q switching - Tuning - Ultrashort pulses   Two side liquid-cooled and passively Q-switched disk oscillator with nanosheets in flowing CCl4 期刊论文  OAI收割 applied physics b-lasers and optics, 2016, 卷号: 122, 期号: 9 作者:  Nie, Rongzhi;  She, Jiangbo;  Li, Dongdong;  Li, Fuli;  Peng, Bo 收藏  |  浏览/下载：18/0  |  提交时间：2016/10/14 Absorption refrigeration  Coolants  Energy efficiency  Graphene  Laser beams  Laser mirrors  Mirrors  Molybdenum compounds  Nanosheets  Optical pumping  Pulse repetition rate  Q switched lasers  Saturable absorbers   The role of anthropogenic and natural factors in shaping the geochemical evolution of groundwater in the Subei Lake basin, Ordos energy base, Northwestern China SCI/SSCI论文  OAI收割 2015 作者:  Liu F.;  Song, X. F.;  Yang, L. H.;  Han, D. M.;  Zhang, Y. H. 收藏  |  浏览/下载：55/0  |  提交时间：2015/12/09 Groundwater chemistry  Anthropogenic activities  Natural processes  Groundwater pumping  Ordos energy base  hydrogeochemical evolution  coastal-plain  chemistry  recharge  aquifer  water  framework  quality  impact  area   Three-dimensional numerical study of a kitchen extractor adopting nearby pumping method 会议论文  OAI收割 2012 International Conference on Material Sciences and Manufacturing Technology, ICMSMT 2012, Dalian, China, OCT 05-06, 2012 作者:  Deng J(邓晶);  Hong CG;  Wang GQ(王贵全);  Sheng HZ(盛宏至);  Deng J(邓晶) 收藏  |  浏览/下载：50/0  |  提交时间：2013/02/26 Computational fluid dynamics  Computer simulation  Efficiency  Kitchens  Manufacture  Materials science  Pumps  Collection efficiency  Computational Fluid Dynamics software  Energy cost  Gas films  Negative pressures  Numerical results  Optimum designs  Particular distribution  Positive pressure  Pumping effect  Pumping mechanism  Pumping methods  Third generation   High beam quality all-solid-state 1053nm nd: Glass amplifier shaping by LCSLM at repetition frequency (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Optical, Electronic Materials and Applications 2012, OEMA 2012, May 25, 2012 - May 26, 2012, Chongqing, China 作者:  Zhang X.;  Qiu J.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：76/0  |  提交时间：2013/03/25 A laser amplifier of LD pumping Nd: glass with a high beam quality and stability  the modulation degree near field is less than 1.23:1. (2012) Trans Tech Publications  which amplifies nanosecond laser pulse  Switzerland.  has been developed in this paper. Under 1Hz repetition frequency  when the flat top pulse of 3 ns width and 1 nJ energy is injected as the seed pulse  the average output energy of the laser amplifier is 115.3 mJ with a net gain of 109  the energy dispersion degree of the outputting laser is no more than 2%   High power885 nm laser diodes with graded optical expand structures for small divergence angle 期刊论文  OAI收割 hongwai yu jiguang gongcheng/infrared and laser engineering, 2011, 卷号: 40, 期号: 12, 页码: 2382-2387 Wang, Jun; Bai, Yiming; Liu, Yuanyuan; He, Weili; Xiong, Cong; Wang, Cuiluan; Feng, Xiaoming; Zhong, Li; Liu, Suping; Ma, Xiaoyu 收藏  |  浏览/下载：30/0  |  提交时间：2012/06/14 Energy efficiency  Epitaxial growth  High power lasers  Optimization  Pumping(laser)  Quantum well lasers  Semiconductor quantum wells   Experiments of second harmonic generation output in pulsed TEA CO 2 laser (EI CONFERENCE) 会议论文  OAI收割 High-Power Lasers and Applications V, October 18, 2010 - October 19, 2010, Beijing, China 作者:  Li D. 收藏  |  浏览/下载：52/0  |  提交时间：2013/03/25 It is always the hot subject to realize the output of high-power laser in the range of 3-5m wavelength. This rang of wave band has greatly important applications in military because it located in the atmosphere window. Generally there are two ways to obtain this range of laser wavelength. One way is through optical parameter oscillation (OPO) from shorter laser wavelength and the other is through second harmonic generation (SHG) from longer laser wavelength. Firstly  the comparison between tow nonlinear crystals ZnGeP2 and AgGaSe2 is conducted for their nonlinear coefficient and damaging threshold in theory. The theoretical results show that the crystal AgGaSe 2 is more suitable for the SHG of pulsed TEA CO2 laser. When using pulsed TEA CO2 laser with wavelength of 9.3m to pumping AgGaSe2 SHG crystal  the wavelength of 4.65m is obtained. In the condition of repetition rate 100Hz  the upmost output power of single pulse is up to level of 1W  which corresponding efficiency of SHG is about 6%. The experimental results show that the polarization of laser beam has greatly influence on the SHG output of the crystal. Under the radiation of 3MW/cm 2 from fundamental wave and the right position for maximal SHG output in the crystal  when polarization of laser beam rotates 4.5  the SHG output of energy decrease about 30%. The research of this paper will make a foundation for further development of mid-infrared laser. 2010 Copyright SPIE - The International Society for Optical Engineering.   Theoretical investigation of the direct observation of anharmonic coupling in CDCl3 in the time domain with femtosecond stimulated Raman scattering 期刊论文  OAI收割 journal of chemical physics, 2009, 卷号: 130, 期号: 4, 页码: 044312-044312 作者:  Sun, Zhigang;  Fu, Bina;  Zhang, Dong H.;  Lee, Soo-Y. 收藏  |  浏览/下载：30/0  |  提交时间：2010/11/30 ab initio calculations  ground states  molecular configurations  molecular moments  molecule-photon collisions  optical pumping  organic compounds  potential energy surfaces  stimulated Raman scattering  transition moments  vibrational states