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8篇 您的检索式:作者名="SHEN Dezhong"
    题名 作者 年代 出处 被引量
1Investigation of College Students' Mental Health Status via Semantic Analysis of Sina Microblog显示文摘The objective of this study is to understand the current mental status of college students in China's Mainland. In this study, 60 thousand college students' microblog content from January 2014 to June 2014 was collected. An emotional energy level, which was developed by a psychologist David R Hawkins, was taken as a basis for ontology database to divide the student's emotion into three parts—positive, negative and neutral status. An ontology-based semantic analysis method was used to analyze the microblog data. The result shows that 46.38% of Sina microblog data reflects positive psychological status, and the ratios of neutral and negative psychological status are 19.77% and 33.85%, respectively. It means that almost one third microblog reflects some negative mentality. The semantic analysis of the big data suggests that most students have healthy mental status, and the negative status of the students should not be ignored.LIANG Xiaohui GU Siqi DENG Jiayuan GAO Zhaixing ZHANG Zhonghua SHEN Dezhong 2015Wuhan University Journal of Natural Sciences2015,20,2:7
2Microwave hydrothermal synthesis and visible-light photocatalytic activity of γ-Bi 2 MoO 6 nanoplates显示文摘Huidong Xie Dezhong Shen Xiaoqing Wang Guangqiu Shen 2008Materials Chemistry and Physics2008,,:1
3Luminescent and thermal properties of a new green emitting Ca 6 Sr 4 (Si 2 O 7 ) 3 Cl 2 :Eu 2+ phosphor for near-UV light-emitting diodes显示文摘Jianfeng Sun Youmin Shi Wenlin Zhang Dezhong Shen Jiayue Sun 2011Materials Research Bulletin2011,,2:1
4Microwave hydrothermal synthesis and visible-light photocatalytic activity of Bi2WO6 nanoplates显示文摘XIE Huidong SHEN Dezhong WANG Xiaoqing SHEN Guangqiu 0,,:1
5Pinile-e|emeni Analysis and Olltimization fbr die Cohmm of Numerically Controlled Triaxial Deep Hole l)rilling Machine 显示文摘KONG Dezhong SHEN Jingfeng 1 1 Baohui 2012Me- chanical Engineering Research2012,2,1:1
6Microwave hydrothermal synthesis and visible-light photocatalytic activity of Bi2WO6 nanoplates显示文摘XIE Huidong SHEN Dezhong WANG Xiaoqing 2007Mater Chem Phys2007,103,:1
7Numerical Study of Classical and Composite Solar Walls by TRNSYS显示文摘实验室 LAMTI 研究几年了学习和象太阳的 Trombe 墙一样的被动的太阳的墙的热表演的优化。因为他们是各种各样的联合的热转移模式的位子并且受到气象学的参数的随机的变化,大楼信封的这些部件有很复杂的行为。使用有限差别方法(频分多路复用) 并且从试验性的结果开始在几期间记录了年,一个模拟模型有关鈥渃o mposite 鈥 ? Trombe 墙被开发并且验证。为了使这个工作更可存取到热的社区,设计,造能集成于 TRNSYS 软件的元素的图书馆的一个模拟模型显得有趣。鈥淭y pe 鈥 ? 因此被执行,频分多路复用与那些相比获得的结果当模特儿。在这个工作,我们把获得的结果与这二个数字方法作比较。假设和模拟的结果也在为鈥渃l assical 鈥 ? Trombe 墙建立的 TRNSYS (类型 36 ) 一个存在模块与那些被面对。学习证明我们开发了的模型是很精确的并且某些假设必须与很多措施被使用。与古典 Trombe 墙相比的合成 Trombe 太阳的墙的优点为冷或多云的气候被加亮。Jibao SHEN Stéphane LASSUE Laurent ZALEWSKI Dezhong HUANG 2007Journal of Thermal Science2007,16,1:1
8Fabrication and properties of high quality InGaN-based LEDs with highly reflective nanoporous GaN mirrors显示文摘Distributed Bragg reflectors (DBRs) are essential components for the development of optoelectronic devices.In this paper, we first report the use of the nanoporous GaN (NP-GaN) DBR as a template for regrowth of InGaN-based light-emitting diodes (LEDs). The wafer-scale NP-GaN DBR, which is fabricated by electrochemical etching in a neutral solution, has a smooth surface, high reflectivity (>99.5%), and wide spectral stop band width (>70 nm). The chemical composition of the regrown LED thin film is similar to that of the reference LED, but the photoluminescence (PL) lifetime, PL intensity, and electroluminescence intensity of the LED with the DBR are enhanced several times compared to those of the reference LED. The intensity enhancement is attributed to the light reflection effect of the NP-GaN DBR and improved crystalline quality as a result of the etching scheme, whereas the enhancement of PL lifetime is attributable to the latter.DEZHONG CAO XIAOKUN YANG LUYANG SHEN CHONGCHONG ZHAO CAINA LUAN JIN MA HONGDI XIAO 2018Photonics Research2018,6,12:0
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