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• OAI收割 [12]

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浏览/检索结果: 共12条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序作者升序作者降序题名升序题名降序发表日期升序发表日期降序 Quantitatively Discriminating Alcohol Molecules by Thermally Modulating NiO-Based Sensor Arrays 期刊论文  OAI收割 ADVANCED MATERIALS TECHNOLOGIES, 2021 作者:  Li, Meng;  Liu, Hongyu;  Chang, Junqing;  Dai, Tiantian;  Nagashima, Kazuki   |  收藏  |  浏览/下载：57/0  |  提交时间：2021/11/15 NiO-based sensor arrays  quantitative discrimination  simultaneous classification of type and concentration  temperature modulation   Satellite-observed trends in the Arctic sea ice concentration for the period 1979–2016 CNKI期刊论文  OAI收割 2019 作者:  WANG Yunhe;  BI Haibo;  HUANG Haijun;  LIU Yanxia;  LIU Yilin   |  收藏  |  浏览/下载：9/0  |  提交时间：2024/12/18 sea ice concentration(SIC)  Arctic Ocean  surface air temperature(SAT)  sea surface temperature(SST)  surface wind(SW)  interannual and decadal oscillation   Satellite-observed trends in the Arctic sea ice concentration for the period 1979-2016 期刊论文  OAI收割 JOURNAL OF OCEANOLOGY AND LIMNOLOGY, 2019, 卷号: 37, 期号: 1, 页码: 18-37 作者:  Wang Yunhe;  Bi Haibo;  Huang Haijun;  Liu Yanxia;  Liu Yilin   |  收藏  |  浏览/下载：69/0  |  提交时间：2019/05/15 sea ice concentration (SIC)  Arctic Ocean  surface air temperature (SAT)  sea surface temperature (SST)  surface wind (SW)  interannual and decadal oscillation   A molecular dynamics simulation on the oxidation of core-shell aluminum nanoparticles in oxygen and water environments 会议论文  OAI收割 Fukuoka, Japan, July 1, 2019 - July 5, 2019 作者:  Chu QZ;  Liao LJ(廖丽涓);  Shi BL;  Luo KH;  Wang NF   |  收藏  |  浏览/下载：65/0  |  提交时间：2019/11/20 Aluminum nanoparticles  Concentration distributions  Heat and mass transfer process  Heat transfer efficiency  Molecular dynamics simulations  Oxidation mechanisms  Particle temperature  Structure evolution   Contrasting responses of leaf stomatal characteristics to climate change: a considerable challenge to predict carbon and water cycles 期刊论文  OAI收割 GLOBAL CHANGE BIOLOGY, 2017, 卷号: 23, 期号: 9, 页码: 3781-3793 作者:  Yan, Weiming;  Shangguan, ZP (reprint author), Inst Soil & Water Conservat, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China.;  Shangguan, Zhouping;  Zhong, Yangquanwei   |  收藏  |  浏览/下载：40/0  |  提交时间：2018/04/12 Carbon And Water Cycles  Climate Change  Drought Stress  Elevated Co2 Concentration  Elevated Temperature  Life Forms  Stomatal Frequency   High-Pressure Measurements of Temperature and CO2 Concentration Using Tunable Diode Lasers at 2 mu m 期刊论文  OAI收割 APPLIED SPECTROSCOPY, 2016, 卷号: 70, 期号: 3, 页码: 474-484 作者:  Cai, Tingdong;  Gao, Guangzhen;  Wang, Minrui;  Wang, Guishi;  Liu, Ying 收藏  |  浏览/下载：37/0  |  提交时间：2017/12/18 Tunable Diode Laser Absorption Spectroscopy (Tdlas)  Quasi-fixed-wavelength Modulation Spectroscopy  Measurement  Temperature  Co2 Concentration  Elevated Temperature And Pressure   Influence of sensitizer concentration on the upconversion luminescence of NaYF4: Yb3+, Er3+ nanoparticles (EI CONFERENCE) 会议论文  OAI收割 2012 2nd International Conference on Machinery, Materials Science and Engineering Applications, MMSE 2012, June 16, 2012 - June 17, 2012, Wuhan, China 作者:   收藏  |  浏览/下载：37/0  |  提交时间：2013/03/25 A series of NaYF4: Yb3+  Er3+ nanoparticles with different doping concentration were successfully prepared by the combination of coprecipitation and hydrothermal methods using sodium citrate as chelator. Upconversion luminescence can be observed in all of the samples at room temperature. Fixed the Er3+ concentration with 1 mol% unchanged  the effect of the Yb3+ concentration on the upconversion luminescence of NaYF4: Yb3+  Er3+ samples were studied when the doped Yb3+ concentrations were 0 mol%  1 mol%  2 mol%  5 mol%  10 mol% and 20 mol%  respectively. As increasing the Yb 3+ concentration  the total intensity of the upconversion luminescence of the samples is increasing while the ratio of red to green emission increases firstly and then decreases. The maximum ratio value is 22.1 when the Yb3+ concentration is 10 mol%. It is found that the cross relaxation and cooperative sensitization effect are the reasons for the phenomenon above. (2012) Trans Tech Publications.   Two-dimensional Modeling of a Salt-gradient Solar Pond with Wall Shading Effect and Thermo-physical Properties Dependent on Temperature and Concentration 期刊论文  OAI收割 JOURNAL OF THERMAL SCIENCE, 2011, 卷号: 20, 期号: 4, 页码: 362,370 Mohsen Mazidi1; Mohammad Hassan Shojaeefard2; Mohammad Sh. Mazidi3; Hossein Shojaeefard4 收藏  |  浏览/下载：24/0  |  提交时间：2012/12/20 solar energy  salt-gradient solar pond  transient heat and mass transfer  temperature and concentration  profiles  stability  thermal efficiency   Dome design and coupled thermal-mechanical analysis of supersonic missile (EI CONFERENCE) 会议论文  OAI收割 2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 22, 2009, Shanghai, China Xing-qiao A.; Qun W.; Hong-guang J. 收藏  |  浏览/下载：68/0  |  提交时间：2013/03/25 A review of high-speed flow pressure and aerodynamic heating effect on Supersonic missile's dome is given. The dome should have excellent properties in optical  mechanical and chemical characteristics. A design of dome on supersonic mode is described according to tactical guide line of a missile. The dome made of quartz which is about 8mm thick and 141mm in window diameter. To check up the reliability of the dome  a reasonable finite element model (FEM) of dome is established  and a thermal-mechanical Analysis to the dome by finite element software NASTRAN has carried on  through these can obtained the distribution of temperature field and stress field when the speed is 2.3Ma. The results indicated that the stress was concentrated in the joint of the dome end and the Missile Section  and the maximum stress was 16.4Mpa. The stress of other nodes was smaller than the allowable stress of quartz glass. Reference to the results of the analysis  a lightweight revision to the dome structural dimension and a new method of dome fixing have put forward  which can reduce the stress concentration. 2009 SPIE.   Energy transfer processes on both Er+ ion concentration and excitation densities in Yb3+-Er3+ codoped LaF3 matrix (EI CONFERENCE) 会议论文  OAI收割 作者:  Zhang J.;  Wang Y.;  Wang Y.;  Wang Y.;  Zhang J. 收藏  |  浏览/下载：38/0  |  提交时间：2013/03/25 The effects of both Er3+ ion concentration and excited density upon frequency upconversion fluorescence emissions in Er3+/Yb 3+-codoped LaF3 powder are investigated. The results reveal that a higher Er3+ concentration can induce not only upconversion emission enhancements but also the changes among the relative intensities of the 407  519  539 and 651 nm radiation transitions as the samples are excited within the ranges of 20 to 700 mW with 978 nm laser diode (LD) as an excitation source. The changes are described by a schematic level model with the cross-relaxation processes between Er3+ ions and a series of dynamic equations that take into account the population of temperature dependent in Er3+. 2006 Elsevier B.V. All rights reserved.