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大叶鸡骨草中无机元素的ICP-MS/ICP-AES测定研究

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食品科技 2010年第11期35卷 316-318页

作者：陈剑平陈少东王力前陈福北广西地矿测试研究中心南宁530023 广西工业职业技术学院石油与化学工程系南宁530001

以ICP-MS/ICP-AES法联合测定大叶鸡骨草中的19个无机元素,方法的准确性用国家一级标准物质GBW10015、GBW10020对比分析证实。检测结果显示,该方法检出限低,分析速度快,准确可靠;这19种元素的含量顺序依次为Ca>P>Al>Mg>Fe>Mn>Sr>Ti>Zn>B>... 详细信息

以ICP-MS/ICP-AES法联合测定大叶鸡骨草中的19个无机元素,方法的准确性用国家一级标准物质GBW10015、GBW10020对比分析证实。检测结果显示,该方法检出限低,分析速度快,准确可靠;这19种元素的含量顺序依次为Ca>P>Al>Mg>Fe>Mn>Sr>Ti>Zn>B>Cu>Ba>Pb>Ni>Cr>Li>Cd>V>Co。

关键词：大叶鸡骨草 ICP-MS ICP-AES 无机元素

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张家界唐家坡滑坡形成机制及成因分析

山地学报 2002年第S1期20卷 111-113页

作者：陈永波乔建平王成华陈秀琼中国科学院成都山地灾害与环境研究所四川成都610041 西南交通大学峨嵋分校土木系测量教研室四川峨嵋614202

1998-7-11由于石油调查需要,江汉油田在湖南省张家界市永定区教子垭镇黄官塔村唐家坡组与蔡家坡组进行了地震物探,同年12月唐家坡组发生坡体蠕滑拉裂,造成21间房屋被毁,幸无人员身亡。本文从滑坡的机理对唐家坡滑坡进行了分析,确定了... 详细信息

1998-7-11由于石油调查需要,江汉油田在湖南省张家界市永定区教子垭镇黄官塔村唐家坡组与蔡家坡组进行了地震物探,同年12月唐家坡组发生坡体蠕滑拉裂,造成21间房屋被毁,幸无人员身亡。本文从滑坡的机理对唐家坡滑坡进行了分析,确定了该滑坡的形成机制与成因。

关键词：唐家坡滑坡形成机制成因分析

Theoretical analysis of non-probabilistic reliability based on interval model

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Acta Mechanica Solida Sinica 2017年第6期30卷 638-646页

作者： Xu-Yong chen jian-ping Fan Xiao-Ya Bian School of Resource and Civil Engineering Wuhan Institute of Technology School of Civil Engineering & Mechanics Huazhong University of Science and Technology

The aim of this paper is to propose a theoretical approach for performing the nonprobabilistic reliability analysis of *** to a great deal of uncertainties and limited measured data in engineering practice,the structural uncertain parameters were described as interval *** theoretical analysis model was developed by starting from the 2-D plane and 3-D *** order to avoid the loss of probable failure points,the 2-D plane and 3-D space were respectively divided into two parts and three parts for further *** study pointed out that the probable failure points only existed among extreme points and root points of the limit state ***,the low-dimensional analytical scheme was extended to the high-dimensional *** the proposed approach,it is easy to find the most probable failure point and to acquire the reliability index through simple comparison directly.A number of equations used for calculating the extreme points and root points were also *** result was useful to avoid the loss of probable failure points and meaningful for optimizing searches in the research ***,two kinds of examples were presented and compared with the existing *** good agreements show that the proposed theoretical analysis approach in the paper is *** efforts were conducted to improve the optimization method,to indicate the search direction and path,and to avoid only searching the local optimal solution which would result in missed probable failure points.

关键词： Non-probabilistic Reliability Interval model Theoretical analysis Probable failure point

呼吸道过敏患儿与特异性IgG抗体表达水平的相关研究

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中国现代医学杂志 2017年第7期27卷 54-57页

作者：陈辉高昆许芳明张乾章学英王岭刘春梅姜玮陈建萍上海市徐汇区大华医院儿科上海200240 上海市徐汇区大华医院检验科上海200240

目的探讨食物特异性IgG的表达水平与非IgE介导的呼吸道过敏的关系,以及特异性IgG定量检测能否作为食物引起呼吸道过敏反应的诊断指标之一。方法选取2013年12月-2015年12月在该院儿科哮喘门诊诊治的非IgE介导呼吸道过敏的患儿,共78例,健... 详细信息

目的探讨食物特异性IgG的表达水平与非IgE介导的呼吸道过敏的关系,以及特异性IgG定量检测能否作为食物引起呼吸道过敏反应的诊断指标之一。方法选取2013年12月-2015年12月在该院儿科哮喘门诊诊治的非IgE介导呼吸道过敏的患儿,共78例,健康对照组27例。在饮食回避后对入组患儿进行疗效判断,其标准为症状消失或明显改善,症状评分为3分;症状有所改善为2分;症状无改善或加重为1分视为无效。然后,对特异性IgG的表达水平与临床症状评分之间的关系进行分析,并通过ROC曲线评估特异性IgG的诊断价值。结果过敏组患儿的临床症状得分以及特异性IgG的表达水平,与对照组比较,均升高,差异有统计学意义(P<0.05)。入组患儿的临床症状得分与特异性IgG水平呈正相关;且特异性IgG的诊断准确性较高,ROC曲线下面积为0.713。结论特异性IgG抗体水平的测定在非IgE介导儿童食物引起呼吸道过敏诊断中有一定的参考价值,可在临床上推广使用。

关键词：特异性IgG 非IgE介导过敏性疾病诊断

Wind induced deformation and vibration of a Platanus acerifolia leaf

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Acta Mechanica Sinica 2012年第3期28卷 583-594页

作者： Chuan-ping Shao Ye-Jun chen jian-Zhong Lin China Jiliang University 310018 HangzhouChina

Deformation and vibration of twig-connected sin- gle leaf in wind is investigated experimentally. Results show that the Reynolds number based on wind speed and length of leaf blade is a key parameter to the aerodynamic prob- lem. In case the front surface facing the wind and with an in- crease of Reynolds number, the leaf experiences static defor- mation, large amplitude and low frequency sway, reconfigu- ration to delta wing shape, flapping of tips, high frequency vibration of whole leaf blade, recovery of delta wing shape, and twig-leaf coupling vibration. Abrupt changes from one state to another occur at critical Reynolds numbers. In case the back surface facing the wind, the large amplitude and low frequency sway does not occur, the recovered delta wing shape is replaced by a conic shape, and the critical Reynolds numbers of vibrations are higher than the ones correspond- ing to the case with the front surface facing the wind. A pair of ram-horn vortex is observed behind the delta wing shaped leaf. A single vortex is found downstream of the conic shaped leaf. A lift is induced by the vortex, and this lift helps leaf to adjust position and posture, stabilize blade distortion and reduce drag and vibration.

关键词： Tree leaf. Wind. Deformation Vibration

The Roles of Heat Shock Proteins 70 and 90 in Exopalaemon carinicauda After WSSV and Vibrio anguillarum Challenges

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Journal of Ocean University of China 2018年第2期17卷 399-406页

作者： LI Jitao LI jian DUAN Yafei chen ping LIU ping Key Laboratory of Sustainable Development of Marine Fisheries of Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Function Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization Sustainable Development of Marine Fisheries of Ministry of Agriculture South China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences

Heat shock proteins(HSPs), such as HSP70 and HSP90, are a suite of highly conserved proteins produced in all cellular organisms when they are exposed to stresses. In aquatic animals, they have been proved to play important roles in response to environmental pollutants and particularly in the non-specific immune responses to pathogen infections. In the present study, the expression profiles of HSP70 and HSP90 genes in hemocytes and hepatopancreas from the ridgetail white prawn Exopalaemon carinicauda infected with WSSV and Vibrio anguillarum were detected using reverse transcription polymerase chain reaction(RT-PCR). After WSSV challenge, the expression level of HSP 70 gene transcripts in the hemocytes and hepatopancreas increased to peak level at 6 h and 48 h, respectively. HSP90 gene transcripts in hemocytes and hepatopancreas were up-regulated significantly at 12 h and 6 h, respectively. During V. anguillarum challenge, the m RNA content of HSP70 gene in hemocytes and hepatopancreas increased significantly at 12 h and 6 h post-infection, respectively. The expression level of HSP90 gene both in hemocytes and hepatopancreas were up-regulated in the first 3 h. The expression patterns of HSP70 and HSP90 genes in hemocytes and hepatopancreas showed temporal and spatial differences after challenged with WSSV and V. anguillarum. The results suggested that HSPs might be involved in immune responses to pathogens challenge in E. carinicauda.

关键词： Exopalaemon carinicauda HSP70 HSP90 expression

The study on preparing anti-radiation material by reverse microemulsion method

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Chinese Chemical Letters 2008年第5期19卷 615-618页

作者： ping ping jiang Xue Min Lin jian Bo chen School of Chemical and Material Engineering Jiangnan University Wuxi 214122 China

A new way to prepare PMMA contain lead salt was presented. This work firstly prepares the material by microemulsion polymerization. The ability of anti-radiation, transmittance ratio and glass transition temperature （Tg） of the material was characterized. The anti-radiation ability is enhanced with the increasing of lead salt content and the thickness of the material. The transmittance ratio decreased with the content of the lead salt. The glass transition temperature of the material is increased with the lead salt content of the organic glass.

关键词： Microemulsion Polymerization Anti-radiation

Blockchain in energy systems:values,opportunities,and limitations

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Frontiers in Energy 2022年第1期16卷 9-18页

作者： Sijie chen jian ping Zheng YAN Jinjin LI Zhen HUANG Key Laboratory of Control of Power Transmission and Conversion(Ministry of Education) Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Thin Film and Microfabrication(Ministry of Education) Department of Micro/Nano-electronicsShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Power Machinery and Engineering(Ministry of Education) Shanghai Jiao Tong UniversityShanghai 200240China

The structure of a power energy system is becoming more distributed than *** becomes challenging to manage such a system in a centralized way,because a central authority may not exist or may not be trusted by all *** is a promising tool to address this challenge,by enabling trusted collaboration in the absence of a trusted central *** use in the energy sector has been pioneered by several pilot ***,to date the energy sector has not seen large-scale deployment of blockchain,partly because the founders of those pilot projects,the public,and utilities have not reached consensus on the values and limitations of blockchain in *** perspective aims to bridge this ***,the philosophy and unique values of blockchain are ***,some promising blockchain-based applications in energy systems are ***,some common misunderstandings of blockchain in energy are ***,some frequently-asked questions from utilities are *** this perspective can help advance large-scale deployment of blockchain in energy systems.

关键词： blockchain immutability energy trading energy management data synchronization

Coordinating EV Charging via Blockchain

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Journal of Modern Power Systems and Clean Energy 2020年第3期8卷 573-581页

作者： jian ping Zheng Yan Sijie chen Liangzhong Yao Minhui Qian Department of Electrical Engineering School of Electronics Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghaiChina School of Electrical Engineering and Automation Wuhan UniversityWuhanChina China Electric Power Research Institute BeijingChina

The increasing electric vehicle(EV) penetration in a distribution network triggers the need for EV charging coordination. This paper firstly proposes a hierarchical EV charging coordination model and an algorithm based on Lagrangian relaxation. A barrier to the implementation of the coordination algorithm is that there usually does not exist a reliable coordinator of charging stations. This paper shows that an unreliable coordinator may collude with some charging stations and behave dishonestly by disobeying the coordination algorithm. Thus, the collusion coalition can gain more profits while lowering the profits of others and the total social welfare. To provide reliable coordination of charging stations, a novel blockchain-based coordination platform via Ethereum is established, including a coordination structure and a smart contract. A mathematical analysis is given to show that the proposed platform can mitigate the collusion behaviors in the coordination. Simulation results show the consequence of collusion and how blockchain can prevent the collusion.

关键词： Electric vehicle(EV)charging coordination collusion blockchain smart contract