Results 11 to 20 of about 376 (65)

Simulation study of factors influencing oil yield during cold pressing of rapeseed [PDF]

open access: yes, 2023
Objective: This study aimed to investigate the factors influencing the oil yield of rapeseed during pressing in a double screw oil press. Methods: To simulate the pressing process of rapeseed and to explore the effects of two factors, the speed of the ...
HUANG Tao   +3 more
core   +1 more source

The concept, structure and mechanism of industrial digital twin systems [PDF]

open access: yes, 2021
Digital twin was originally and firstly researched in manufacturing, and is now widely and maturely used for application in industries. Recent theoretical studies and technical applications mainly focus on the definition of the digital twin, the ...
Evans, Steve   +13 more
core   +1 more source

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

Multi-physics Coupling Characteristics of Lead-bismuth Reactor Fuel Assembly Based on Oxidative Corrosion Behaviors [PDF]

open access: yes
Oxygen is the most promising non-metallic inhibitor in lead-bismuth cooled fast reactors (LFRs). The addition of oxygen to the coolant can format a protective oxide layer on the surface of structural materials, which will effectively alleviate the ...
JI Xu, CHAI Xiang, ZHANG Lefu, LIU Xiaojing
core   +1 more source

Investigation of plasmon Refractive Index Sensor based on Photonic Crystal Slab [PDF]

open access: yes, 2016
摘要 进入新世纪以来,光电子领域日益向高精端,小体积,纳米微纳米方向发展,表面等离激元共振技术恰好契合了这一特点,在化学,生物化学,生物医学等领域引起了研究者的广泛关注,尤其是对医学上的生物分子无需标记实时监测以及食物污染和毒品检测中小分子物质检测,提出了新的挑战,因此,研究一种高性能高灵敏的等离激元共振传感器越来越成为大家的共识。所以,本论文基于理论研究的基础上,运用COMSOL进行了表面等离激元共振传感器(SurfacePlasmonResonance,SPR)模型的模拟仿真 ...
李卫
core  

Analysis of Key Technologies and Development Prospects for Renewable Energy-Powered Water Electrolysis for Hydrogen Production Based on Artificial Intelligence [PDF]

open access: yes
ObjectivesAs an essential sustainable energy technology, renewable energy-powered water electrolysis for hydrogen production has attracted widespread attention due to its advantages in environmental protection and low carbon emissions.
YANG Bo, ZHANG Zijian
core   +1 more source

Development of SiC-LC Resonant Wireless High Temperature Pressure Sensor [PDF]

open access: yes, 2017
高温压力传感器在航天、航空、国防建设、能源开发等领域有广阔应用需求。传统硅材料在高于200℃后机械/电学性能均受到较大影响,无法满足高温应用要求。另一方面,传统高温传感器引线会导致电源、信号电路的温度升高问题,基于LC谐振的无线传感器能实现非接触式测量,达到电性连接、调理电路与高温热源之间物理隔离,提高传感器工作温度和稳定工作时间。因此,本论文提出一种SiC-LC谐振式无线高温压力传感器,主要研究工作如下: (1)根据LC谐振测量原理设计电感内置及电感外置两种敏感元件的结构方案 ...
杨龙
core  

Simulation of tempering drying of porous media based on COMSOL multi-physics field [PDF]

open access: yes
ObjectiveTo investigate the variation laws of temperature and humidity fields during the tempering process.MethodsUsing corn kernels and grain piles as porous media, perform multi-physics field coupling using the heat and moisture flow interface in the ...
FENG Tai   +3 more
core   +1 more source

Research of Free-Form Micro Lens Array Molded by Electrostatic Force Deformed Template [PDF]

open access: yes, 2013
自由曲面微透镜阵列可以用来实现光束整形、光场均匀化、太阳能电池的陷光结构,立体摄像及显示,光互连等很多功能,尤其是随着近年来光纤通信技术的快速发展和光纤入户的普及,与光纤光斑尺寸相仿的自由曲面微透镜的用途还在不断扩大。与之对应,现有的制造技术还难以实现低成本、直径在几十微米以下、可精确控制面型的微透镜阵列。例如通过金刚石钻头、激光加工等手段获得模具而复制获得的微镜头的尺寸一般在几百微米,而微喷打印,光敏胶热回流形成的微镜头的面型不能精确控制。 本文针对尺寸在几十微米以下的自由曲面微透镜阵列,提出一种称为“
吴昭
core  

Design of terahertz metasurface methane sensor based on bound states in the continuum [PDF]

open access: yes
Compared to traditional methane sensors used in mines, the metasurface methane sensor has significant advantages in sensitivity, stability, and other aspects, making it better suited to meet the practical needs of mine production. To address the issue of
CUI Hongzhong   +6 more
core   +1 more source

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