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Cu(In 4

Ga)Se2 3

Cu(Inx 1

Ga)Se2光伏组件 1

Ga1–x)Se2 1

PDT 1

人工智能 1

仿真技术 1

低温 1

克努森蒸发源 1

凝结 1

吸湿解吸 1

太阳能 1

封装胶膜 1

平台;智能制造;多智能体;调度 1

柔性 1

液滴喷射 1

激光烧蚀短程热效应 1

由P1引起的功率损耗 1

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Soil selenium concentration and Kashin-Beck disease prevalence in Tibet, China

Shunjiang LI, Wei LI, Xia HU, Linsheng YANG, Ruodeng XIRAO

《环境科学与工程前沿(英文)》 2009年 第3卷 第1期   页码 62-68 doi: 10.1007/s11783-009-0009-4

摘要: In order to investigate the correlation between the prevalence of Kashin-Back disease (KBD) and Se concentrations, natural soil samples and cultivated soil samples were collected from southeastern Tibet, China; and the soil Se concentrations were measured by atomic fluorescent spectrophotometer. It was found that the mean Se concentrations of natural soil samples in KBD areas, from the first layer to the third layer, were 0.17 mg/kg, 0.11 mg/kg, and 0.10 mg/kg, respectively, and in non-disease areas were 0.21 mg/kg, 0.24 mg/kg, and 0.13 mg/kg, respectively. The mean Se concentrations of cultivated soil samples were 0.10 mg/kg in KBD areas and 0.23 mg/kg in non-disease areas, respectively. Soil Se concentrations in KBD areas were lower than that in non-disease areas, and the mean concentrations of soil Se in Tibet were lower than the average of China (0.29 mg/kg). Therefore , there is a close relationship between soil Se concentrations and KBD in Tibet. More studies should be concentrated on the impacts of Se deficiency in soils and its relationship with Se concentrations in food-grain and the human body in Tibet areas.

关键词: Kashin-Beck disease (KBD)     selenium (Se)     soil     Tibet    

Nucleic acid crystallization and X-ray crystallography facilitated by single selenium atom

Wen Zhang,Jack W. Szostak,Zhen Huang

《化学科学与工程前沿(英文)》 2016年 第10卷 第2期   页码 196-202 doi: 10.1007/s11705-016-1565-3

摘要: X-ray crystallography is a powerful strategy for 3-D structure determination of macromolecules, such as nucleic acids and protein-nucleic acid complexes. However, the crystallization and phase determination are the major bottle-neck problems in crystallography. Recently we have successfully developed synthesis and strategy of selenium-derivatized nucleic acids (SeNA) for nucleic acid crystallography. SeNA might not only provide the rational strategies to solve the phase determination problem, but also offer a potential strategy to explore crystallization solutions.

关键词: selenium     DNA     RNA     nucleic acid     crystallization    

基于Cu(In,Ga)Se2 低成本薄膜的光伏技术的进展

Powalla Michael,Paetel Stefan,Hariskos Dimitrios,Wuerz Roland,Kessler Friedrich,Lechner Peter,Wischmann Wiltraud,Magorian Friedlmeier Theresa

《工程(英文)》 2017年 第3卷 第4期   页码 445-451 doi: 10.1016/J.ENG.2017.04.015

摘要:

本文讨论了基于Cu(In,Ga)Se 2 (CIGS) 复合薄膜半导体材料的光伏(PV)技术。

关键词: 薄膜光伏     太阳能     柔性     Cu(In     Ga)Se2    

Relationship between selenium concentration in child hair and the distribution of Kashin-Beck Disease

LI Shunjiang, YANG Linsheng, WANG Wuyi, LI Yonghua, LI Hairong, XIRAO Ruodeng

《医学前沿(英文)》 2007年 第1卷 第2期   页码 223-225 doi: 10.1007/s11684-007-0043-1

摘要: The focus of this study is to determine the relationship between selenium (Se) concentrations in child hair and the distribution of Kashin-Beck disease (KBD) in Tibet. The hair of children in typical KBD-affected areas and non-disease areas was collected, and its Se concentrations were measured by atomic fluorescent spectrometry. The Se concentrations in child hair were (0.13±0.04) and (0.18±0.07) µg/g respectively in KBD areas and non-disease areas respectively, which are significantly different. In areas supplemented with Se in Tibet, the Se concentration of hair in KBD- affected areas was higher than that in non-diseased areas, being (0.28±0.03) and (0.18±0.04) µg/g respectively. There is a close relationship between the Se concentrations in hair and KBD distribution. Se supplement increase the Se concentrations in the human body. Appropriate Se supplementation is important to prevent KBD in Tibet.

关键词: different     relationship     non-disease     selenium     KBD distribution    

一种促进低温快速沉积Cu(In,Ga)Se2薄膜生长的单加热克努森蒸发源的改良设计 Article

张运祥, 林舒平, 程世清, 何志超, 胡朝静, 周志强, 刘玮, 孙云

《工程(英文)》 2021年 第7卷 第4期   页码 534-541 doi: 10.1016/j.eng.2020.01.016

摘要:

在共蒸发工艺中,克努森蒸发源经常被用来生长高质量Cu(In,Ga)Se2(CIGS)薄膜。

关键词: Cu(In     Ga)Se2     克努森蒸发源     凝结     液滴喷射     低温    

Feasibility study on simultaneous removal of sulfur and trace selenium in the MTD-FGD reactor

LI Yuzhong, TONG Huiling, ZHUO Yuqun, LI Yan, CHEN Changhe, XU Xuchang

《能源前沿(英文)》 2007年 第1卷 第3期   页码 259-263 doi: 10.1007/s11708-007-0036-4

摘要: This study deals with the simultaneous removal of sulfur dioxide (SO) and trace selenium dioxide (SeO) from flue gas by calcium oxide (CaO) adsorption in the moderate temperature range, especially the feasibility of simultaneous removal of these two pollutants in a moderate temperature dry flue gas desulfurization (MTD-FGD) reactor. The effect of SO presence on selenium capture is studied through the experiments performed on a thermogravimetric analyzer (TGA) and the following conclusions can be obtained. When CaO conversion is relatively low and the reaction rate is controlled by chemical reaction kinetics, the SO presence does not affect selenium capture. When CaO conversion is very high and the reaction rate is controlled by product layer diffusion, the SO presence and the product layer diffusion resistance jointly reduce selenium capture. Through analyses of some pilot scale MTD-FGD tests, it can be concluded that in the MTD-FGD reactor, the sulfate reaction of sorbent particles is generally kinetically controlled. Therefore, it is feasible that sulfur and trace selenium can be simultaneously removed by Ca-based sorbent in the MTD-FGD reactor.

关键词: Ca-based sorbent     product     feasibility     thermogravimetric analyzer     simultaneous removal    

用高光谱发光法研究Cu(Inx,Ga1–x)Se2 (CIGS)模块中由P1引起的功率损耗的成因 Article

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

《工程(英文)》 2020年 第6卷 第12期   页码 1395-1402 doi: 10.1016/j.eng.2019.12.019

摘要: ">在本文中,我们利用了高光谱高分辨率光致发光映射技术,这是一个强大的工具,可用于选择和优化在Cu(Inx,Ga1-x)Se

关键词: Cu(Inx     Ga1–x)Se2     电池到模块的效率差距     由P1引起的功率损耗     高光谱光致发光     激光烧蚀短程热效应    

碱金属掺杂对CIGS 薄膜及电池器件的影响

孙云,林舒平,李伟,程世清,张运祥,刘一鸣,刘玮

《工程(英文)》 2017年 第3卷 第4期   页码 452-459 doi: 10.1016/J.ENG.2017.04.020

摘要:

本文总结了Cu(In, Ga)Se2 (CIGS) 电池中掺杂碱金属的发展历史和一些重要成果,综述了碱金属掺杂方式对CIGS 吸收层及器件性能的影响。

关键词: 碱金属     Cu(In     Ga)Se2     薄膜太阳能电池     PDT    

Advantageous mechanochemical synthesis of copper(I) selenide semiconductor, characterization, and properties

《化学科学与工程前沿(英文)》 2022年 第16卷 第3期   页码 433-442 doi: 10.1007/s11705-021-2066-6

摘要: Copper(I) selenide-nanocrystalline semiconductor was synthesized via one-step mechanochemical synthesis after 5 min milling in a planetary ball mill. The kinetics of synthesis was followed by X-ray powder diffraction analysis and specific surface area measurements of milled 2Cu/Se mixtures. The X-ray diffraction confirmed the orthorhombic crystal structure of Cu2Se with the crystallite size ~25 nm. The surface chemical structure was studied by X-ray photoelectron spectroscopy, whereby the binding energy of the Cu 2p and Se 3d signals corresponded to Cu+ and Se2– oxidation states. Transmission electron microscopy revealed agglomerated nanocrystals and confirmed their orthorhombic structure, as well. The optical properties were studied utilizing ultraviolet-visible spectroscopy and photoluminescence spectroscopy. The direct bandgap energy 3.7 eV indicated a blue-shift phenomenon due to the quantum size effect. This type of Cu2Se synthesis can be easily adapted to production dimensions using an industrial vibratory mill. The advantages of mechanochemical synthesis represent the potential for inexpensive, environmentally-friendly, and waste-free manufacturing of Cu2Se.

关键词: Cu2Se     berzelianite     nanocrystalline semiconductor     mechanochemical synthesis     planetary ball mill    

离聚物基封装胶膜的吸湿解吸——一种用于CIGS 薄膜光伏组件的自呼吸封装胶膜 Article

Miao Yang, Raymund Schäffler, Tobias Repmann, Kay Orgassa

《工程(英文)》 2020年 第6卷 第12期   页码 1403-1407 doi: 10.1016/j.eng.2020.02.020

摘要:

本文引入了一种创新的基于离聚物的多层封装胶膜用以代替传统双层玻璃光伏组件的封装材料。利用该封装胶膜,在不需要额外的边缘密封的情况下就能防止水汽渗透。本文分析了这种封装胶膜及其原料——聚(乙烯-共丙烯酸)和离聚物——在不同气候条件下的自发吸湿和解吸。相对空气湿度是这些逆过程的热力学驱动力,并决定了其平衡含水率(equilibrium moisture content, EMC)。空气湿度越大,EMC也越大。被吸收的水分子的均质化是一个扩散控制过程,其中温度起主要作用。然而,其在较高温度下扩散系数仍相对较低。我们认为,当光伏组件在正常气候条件下使用时,基于离聚物的封装胶膜可“呼吸”水汽,即在白天相对湿度较高时,它会“吸入”(吸收)水分并将其限制在组件的外边缘内,而在夜晚相对湿度较低时,它则会“呼出”(解吸)水分。通过这种方式,封装胶膜可以保护电池免受水汽的侵入。

关键词: 离聚物     封装胶膜     吸湿解吸     Cu(In     Ga)Se2光伏组件    

Biological removal of selenate in saline wastewater by activated sludge under alternating anoxic/oxic conditions

Yuanyuan Zhang, Masashi Kuroda, Shunsuke Arai, Fumitaka Kato, Daisuke Inoue, Michihiko Ike

《环境科学与工程前沿(英文)》 2019年 第13卷 第5期 doi: 10.1007/s11783-019-1154-z

摘要: Removal of selenate in saline wastewater by activated sludge was examined. Sequencing batch reactor was operated under alternating anoxic/oxic conditions. Above 97% removal of soluble selenium (Se) was achieved continuously. Major Se removal mechanism varied depending on the length of aeration period. Various Se-reducing bacteria likely contributed to coordinately to Se removal. Selenium (Se)-containing industrial wastewater is often coupled with notable salinity. However, limited studies have examined biological treatment of Se-containing wastewater under high salinity conditions. In this study, a sequencing batch reactor (SBR) inoculated with activated sludge was applied to treat selenate in synthetic saline wastewater (3% w/v NaCl) supplemented with lactate as the carbon source. Start-up of the SBR was performed with addition of 1–5 mM of selenate under oxygen-limiting conditions, which succeeded in removing more than 99% of the soluble Se. Then, the treatment of 1 mM Se with cycle duration of 3 days was carried out under alternating anoxic/oxic conditions by adding aeration period after oxygen-limiting period. Although the SBR maintained soluble Se removal of above 97%, considerable amount of solid Se remained in the effluent as suspended solids and total Se removal fluctuated between about 40 and 80%. Surprisingly, the mass balance calculation found a considerable decrease of Se accumulated in the SBR when the aeration period was prolonged to 7 h, indicating very efficient Se biovolatilization. Furthermore, microbial community analysis suggested that various Se-reducing bacteria coordinately contributed to the removal of Se in the SBR and main contributors varied depending on the operational conditions. This study will offer implications for practical biological treatment of selenium in saline wastewater.

关键词: Activated sludge     Selenate reduction     Saline wastewater     Sequencing batch reactor     Alternating anoxic/oxic conditions     Selenium biovolatilization    

前向选择成分分析——算法与应用

Seán McLoone(高级职称)

2020年11月28日

关键词: 仿真技术     人工智能    

一种面向平台型智能制造系统调度的多智能体架构 Special Feature on Industrial Internet

Tao, Li-hui Wang,yongkuiliu@163.com,xs_zhang@126.com,zhanglin@buaa.edu.cn,ftao@buaa.edu.cn,lihuiw@kth.se

《信息与电子工程前沿(英文)》 2019年 第20卷 第11期   页码 1465-1492 doi: 10.1631/FITEE.1900094

摘要: 在过去几年,一些智能制造概念相继被提出,如云制造、工业4.0以及工业互联网。它们共同目的之一是通过构建汇聚资源的平台,实现跨企业资源协同优化配置。在所有这些概念中,一个完整制造系统包括分布式物理制造系统和一个包含从物理制造系统映射的虚拟制造系统平台。我们称这样的制造系统为平台型智能制造系统。因此,一个平台型智能制造系统可看作一个规模巨大的信息物理系统,其中信息部分是平台而物理部分是相应物理制造系统。对一个平台型智能制造系统而言,一个重要问题是如何实现汇聚资源的优化调度。多智能体技术为该问题的解决提供了一种有效方法。本文提出一个面向平台型智能制造系统调度的多智能体架构,包括平台层次的调度多智能体系统和企业层次的调度多智能体系统。提出平台型智能制造系统调度的流程、特征和需求。基于上述架构,提出一个面向平台型智能制造系统的调度模型。通过案例,验证了所提架构和模型的有效性。

关键词: 平台;智能制造;多智能体;调度    

标题 作者 时间 类型 操作

Soil selenium concentration and Kashin-Beck disease prevalence in Tibet, China

Shunjiang LI, Wei LI, Xia HU, Linsheng YANG, Ruodeng XIRAO

期刊论文

Nucleic acid crystallization and X-ray crystallography facilitated by single selenium atom

Wen Zhang,Jack W. Szostak,Zhen Huang

期刊论文

基于Cu(In,Ga)Se2 低成本薄膜的光伏技术的进展

Powalla Michael,Paetel Stefan,Hariskos Dimitrios,Wuerz Roland,Kessler Friedrich,Lechner Peter,Wischmann Wiltraud,Magorian Friedlmeier Theresa

期刊论文

Relationship between selenium concentration in child hair and the distribution of Kashin-Beck Disease

LI Shunjiang, YANG Linsheng, WANG Wuyi, LI Yonghua, LI Hairong, XIRAO Ruodeng

期刊论文

一种促进低温快速沉积Cu(In,Ga)Se2薄膜生长的单加热克努森蒸发源的改良设计

张运祥, 林舒平, 程世清, 何志超, 胡朝静, 周志强, 刘玮, 孙云

期刊论文

Feasibility study on simultaneous removal of sulfur and trace selenium in the MTD-FGD reactor

LI Yuzhong, TONG Huiling, ZHUO Yuqun, LI Yan, CHEN Changhe, XU Xuchang

期刊论文

用高光谱发光法研究Cu(Inx,Ga1–x)Se2 (CIGS)模块中由P1引起的功率损耗的成因

César Omar Ramírez Quiroz, Laura-Isabelle Dion-Bertrand, Christoph J. Brabec, Joachim Müller, Kay Orgassa

期刊论文

碱金属掺杂对CIGS 薄膜及电池器件的影响

孙云,林舒平,李伟,程世清,张运祥,刘一鸣,刘玮

期刊论文

Advantageous mechanochemical synthesis of copper(I) selenide semiconductor, characterization, and properties

期刊论文

离聚物基封装胶膜的吸湿解吸——一种用于CIGS 薄膜光伏组件的自呼吸封装胶膜

Miao Yang, Raymund Schäffler, Tobias Repmann, Kay Orgassa

期刊论文

Biological removal of selenate in saline wastewater by activated sludge under alternating anoxic/oxic conditions

Yuanyuan Zhang, Masashi Kuroda, Shunsuke Arai, Fumitaka Kato, Daisuke Inoue, Michihiko Ike

期刊论文

前向选择成分分析——算法与应用

Seán McLoone(高级职称)

2020年11月28日

会议视频

一种面向平台型智能制造系统调度的多智能体架构

Tao, Li-hui Wang,yongkuiliu@163.com,xs_zhang@126.com,zhanglin@buaa.edu.cn,ftao@buaa.edu.cn,lihuiw@kth.se

期刊论文