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期刊2018年春霜冻对江西省北部茶叶生产影响的定量评估被引量:4
《气象与减灾研究》2019年第1期70-74,共5页陶瑶 杨爱萍 段里成 张坤 
2018年江西省气象局重点项目“特色农产品气候品质评价技术研究”
为探究江西省北部茶区春霜冻发生特点,深入开展茶叶春霜冻灾害定量评估工作,采用实地调查方式,获取江西省北部12个茶场2018年4月7—9日春霜冻的灾情资料和同期气象观测资料,采用加权求和法构建茶叶春霜冻灾害损失定量评估模型,对春霜冻...显示全部
关键词:春茶 春霜冻 损失 定量评估 
期刊Synthesis and characterization of MoS2/Fe@Fe3O4 nanocomposites exhibiting enhanced microwave absorption performance at normal and oblique incidences
《材料科学技术:英文版》2019年第9期1931-1939,共9页Peng Wang Junming Zhang Guowu Wang Benfang Duan Donglin He Tao Wang Fashen Li 
financially supported by the National Natural Science Foundations of China (Nos. 11574122 and 51731001);the Fundamental Research Funds for the Central Universities (No. lzujbky-2017-k20)
Herein,we attempted to prepare MoS2/Fe@Fe3O4 nanocomposites capable of strongly absorbing broadband incident electromagnetic(EM)radiation and probed the effects of their composition on complex permittivity and permeab...显示全部
关键词:PERMITTIVITY PERMEABILITY MICROWAVE absorption Electromagnetic loss Interface CANCELLATION 
期刊High birefringence, low loss, and flattened dispersion photonic crystal fiber for terahertz application
《中国物理B:英文版》2019年第11期394-398,共5页王豆豆 穆长龙 孔德鹏 郭晨瑜 
Project supported by the National Natural Science Foundation of China(Grant No.11604260);the Outstanding Youth Science Fund of Xi’an University of Science and Technology,China(Grant No.2019YQ3-10)
A type of photonic crystal fiber based on Kagome lattice cladding and slot air holes in a rectangular core is investigated. Full vector finite element method is used to evaluate the modal and propagation properties of...显示全部
关键词:TERAHERTZ PHOTONIC crystal fiber BIREFRINGENCE loss DISPERSION 
期刊Impact of <i>Cowpea mottle virus</i>on the Growth and Yield of Bambara Groundnut (<i>Vigna subterranean</i>(L.) Verdc.)
《美国植物学期刊(英文)》2018年第10期2053-2062,共10页Elisabeth Zongo Bouma James Néya Valentin Stanislas Edgar Traoré Essowé Palanga Jean Zabré Nicolas Barro Oumar Traoré 
Bambara groundnut [Vigna subterranean (L.) Verdc] is a food legume with high potential for food security in Sub-Saharan Africa. However, in addition to being a neglected crop, its production is limited by several cons...显示全部
关键词:Bambara Groundnut COWPEA MOTTLE VIRUS IMPACT Yield loss 
期刊The assessment of soil loss by water erosion in China
《国际水土保持研究(英文)》2020年第4期430-439,共10页Baoyuan Liu Yun Xie Zhiguang Li Yin Liang Wenbo Zhang Suhua Fu Shuiqing Yin Xin Wei Keli Zhang Zhiqiang Wang Yingna Liu Ying Zhao Qiankun Guo 
the National Key R&D Program 2018YFC0507000
Soil erosion is a major environmental problem in China.Planning for soil erosion control requires accurate soil erosion rate and spatial distribution information.The aim of this article is to present the methods and r...显示全部
关键词:National soil erosion survey CSLE Sample units Chinese soil loss map Soil erosion rate Ratio of soil erosion area 
期刊海上反循环固井技术研究
《重庆科技学院学报:自然科学版》2020年第6期51-56,共6页岳家平 刘兆年 幸雪松 武治强 
国家科技重大专项“海外重点油气田开发钻采关键技术”(2017ZX05032004);中海油研究总院自立课题“深水深层井钻井关键技术研究”(2019KJ-ZC02)。
针对海上低压易漏井、高温高压深井、深水井的固井作业中面临的漏失与水泥浆抗压强度发展缓慢等问题,从固井工艺、水力学、水泥浆设计等角度出发,通过固井压力分析、水泥浆性能分析及软件模拟等手段,分析反循环固井技术在海上油田固井...显示全部
关键词:反循环 固井 深水 水泥浆 漏失 高温高压 大温差 
期刊课堂场景下学习者情感识别研究
《智能计算机与应用》2020年第11期8-15,共8页苏超 王国中 
国家重点研发计划资助项目(2019YFB1802700);上海工程技术大学研究生创新计划资助项目(19KY0232)。
课堂上学生的面部表情和姿态是学习状态的一种自然流露,能够反映出学习者当前的学习状态。而传统的情感识别方法存在识别准确率低、特征提取困难以及实时性差等问题。针对上述问题,本文提出了一种基于表情和姿态的双模态情感识别模型。...显示全部
关键词:情感识别 Tiny_YOLOv3 SEnet GIoU loss K-MEANS 
期刊Analytical formulation for the bend loss in single-ring hollow-core photonic crystal fibers
《光子学研究:英文版》2017年第2期88-91,共4页MICHAEL H.FROSZ PAUL ROTH MEHMET C.GüNENDI PHILIP ST.J.RUSSELL 
Understanding bend loss in single-ring hollow-core photonic crystal fibers(PCFs)is becoming of increasing importance as the fibers enter practical applications.While purely numerical approaches are useful,there is a n...显示全部
关键词:CORE RING Analytical formulation for the bend loss in single-ring hollow-core photonic crystal fibers PCF 
期刊Perovskite Self-Passivation with PCBM for Small Open-Circuit Voltage loss
《能源与动力工程(英文)》2020年第6期257-272,共16页Xinglin Zhu Xinyu Zhao Lei Li Yi Peng Wenwang Wei Xuan Zhang Mengwei Su Yukun Wang Ziqian Chen Wenhong Sun 
It is well known that [6,6]-phenyl-C<sub><span style="font-size:12px;font-family:Verdana;">61</span></sub><span style="font-size:12px;font-family:Verdana;">-butyric ac...显示全部
关键词:Self-Passivation Small Open-Circuit Voltage loss PCBM 
期刊Methane Gas Sensor Based on Microstructured Highly Sensitive Hybrid Porous Core Photonic Crystal Fiber被引量:1
《传感技术(英文)》2019年第1期12-26,共15页Md. Ranju Sardar Mohammad Faisal 
We have demonstrated and analyzed the methane gas sensor based on octagonal cladding and hexagonal hybrid porous core photonic crystal fiber (HPC-PCF) for gas detection purpose. The proposed design of HPC-PCF has been...显示全部
关键词:HPC-PCF RELATIVE Sensitivity CONFINEMENT loss POROSITY CH4 GAS and GAS Sensor 
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