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Performance Analysis of an Efficient Integration System of Coal-Fired Power Plant,Solar Thermal Energy and CO_(2)Capture

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Journal of Thermal Science 2024年第4期33卷 1509-1522页

作者： WANG Yuhao WANG Ruilin LIU Lanhua XING chenjian guo Yafei YANG Qingshan YING Jiaheng SUN Jian LI Wenjia LIU Yuanyuan ZHAO Chuanwen School of Energy and Mechanical Engineering Nanjing Normal UniversityNanjing210023China China Huadian Group Co.LTD.Shanghai Branch Shanghai200120China Key Laboratory of Efficient Utilization of Low and Medium Grade Energy(Tianjin University) Ministry of Education of ChinaTianjin300350China Huadian Zhengzhou Mechanical Design Institute Company Limited Zhengzhou450046China

Coal-fired power plant is a major contributor to greenhouse gas *** post-combustion capture is a promising method for CO_(2)emission reduction but the high thermal demand is *** address this issue,solar thermal energy and CO_(2)capture are jointly integrated into the coal-fired power plant in this *** solar thermal energy is employed to meet the heat requirement of the CO_(2)capture process,thereby avoiding the electricity loss caused by self-driven CO_(2)***,the heat released from the carbonation reaction of MgO adsorbent is integrated into the steam Rankine *** partially substituting the extracted steam for feedwater heating,the electricity output of the power plant is further *** to the results from the developed model,the system could achieve a CO_(2)capture rate of 86.5%and an electricity output enhancement of 9.8%compared to the reference system,which consists of a self-driven CO_(2)capture coal-fired power plant and PV generation *** operational strategy is also optimized and the amount of CO_(2)emission reduction on a typical day is increased by 11.06%.This work shows a way to combine fossil fuels and renewable energy for low carbon emissions and efficient power generation.

关键词： CO_(2)capture parabolic trough collector solar aided coal-fired electricity generation

Logarithmic Gain-carrier Density Characteristic of QW Lasers

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Semiconductor Photonics and Technology 2000年第2期6卷 73-76页

作者： ZHANGXiao－xia chenjian－guo 等 SouthwestJiaotongUniversity Chengdu610031CHN SichuanUniversity Chengdu610064CHN

The relationship between gain and carrier density is analysed. In the quantum well (QW) lasers, initially, the gain increases rapidly with the carrier density and then starts to saturate. It can be seen that QW lasers have a higher differential gain because of the step-like state density, and that the gain saturates at higher carrier densities because of the constant state density of the lowest subband. It is shown that simple logarithmic gain-carrier density is more accurate than the traditional linearized form for a QW laser.

关键词： Logarithmic gain Carrier density Differential gain QW laser

The ectopic study of tissue-engineered bone with hBMP-4 gene modified bone marrow stromal cells in rabbits

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Chinese Medical Journal 2005年第4期118卷 281-288页

作者： JIANGXin-quan chenjian-guo SébastienGittens CHENChuan-jun ZHANGXiu-li ZHANGZhi-yuan ShanghaiKeyLabofStomatology OralandMaxillofacialSurgeryDepartmentNinthPeople＇sHospitalShanghaiSecondMedicalUniversityShanghai200011China LifeScienceCenter PekingUniversityBeijing100871China epartmentofBiomedicalEngineering FacultyofMedicineUniversityofAlbertaCanada ShanghaiKeyLabofStomatology OralandMaxillofacialSurgeryDepartmentNinthPeople＇sHospitalShanghaiSecondMedicalUniversityShanghai200011China

Background Tissue-engineering techniques combined with gene therapy have beenrecently reported to improve osteogenesis. In this study, tissue-engineered bone constructed byhuman Bone Morphogenetic Protein 4 (hBMP-4) gene-modified bone marrow stromal cells (bMSCs) wasexplored in an ectopic bone formation model in rabbits. Methods A pEGFP-hBMP-4 mammalian plasmid (EGFP: Enhanced Green Fluorescent Protein) was constructed by subcloning techniques. bMSCs obtainedfrom rabbits were cultured and transfected with either pEGFP-hBMP-4, pEGFP or left uninfected invitro. Transfer efficiency was detected through the expression of EGFP. Transcription of the targetgene was detected by RT-PCR. Alkaline phosphatase (ALP) and Von Kossa tests were also conducted toexplore the phenotypes of osteoblasts. The autologous bMSCs of the 3 groups were then combined withNatural Non-organic Bone ( NNB) , a porous hydroxyapatite implant with a dimension of 6 mm x 6 mm x3 mm, at a concentration of 5 x 10~7 cells/ml. They were subsequently implanted into 6 rabbitssubcutaneously using NNB alone as a blank control (6 implants per group). Four weeks after surgery,the implants were evaluated with histological staining and computerized analysis of new boneformation. Results pEGFP-hBMP-4 expression plasmid was constructed. Under optimal conditions, genetransfer efficiency reached more than 30% , Target gene transfer could strengthen the transcriptionof BMP-4, and increase the expression of ALP as well as the number of calcium nodules. In theectopic animal model, NNB alone could not induce new bone formation. The new bone area formed in thebMSCs group was (17.2 ± 7.1)%, and pEGFP group was (14.7 ± 6.1) % , while pEGFP-hBMP-4 group was(29.5 ± 8.2) % , which was the highest among the groups (F = 7.295, P < 0. 01). Conclusions Themammalian hBMP-4 expression plasmid was successfully constructed and a comparatively high transferefficiency was achieved. The gene transfer technique enhanced the expression of BM

关键词： tissue engineering bone morphogenetic protein bone marrow stromal cells gene therapy

Facet Reflection Coefficient of Phase-lockedDiode Laser Array in an External Cavity

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Semiconductor Photonics and Technology 2003年第2期9卷 71-74页

作者： YANDi-yong chenjian-guo TANGChun FENGguo-ying LIDa-yi Dept.ofOptoelectron SichnanUniversityChengdu610064CHN InstituteofAppl ElectronCAEP.Mianyang621900CHN

A diode laser array(DLA)positioned in an external cavity can receive the radiations emitted from its neighboring elements (C 1) and that of itself (S) after being reflected at the DLA facet as well as from the external mirror (C 0). Considering the fact that｜C 0/S｜ should be larger than unity if the external cavity is effective,and｜C 1/S｜ should be larger than unity if the phase locking may be established in the external *** requirements on the reflection at the facet of the diode laser array have been specified in terms of the cavity length and reflection coefficient of the external mirror.

关键词： diode laser array external cavity phase locking

Activity-dependent sulfhydration of serine racemase controls synaptic plasticity in the hippocampus via increasing D-serine availability

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中国药理学通报 2015年第B11期31卷 51-51页

作者： LIYuan-long WuPeng-fei LONGLi-hong HUZhuang-li WANGFang chenjian-guo DeptofPharmacology TongjiMedicalCollegeHuazhongUniversityofScienceandTechnologyWuhanHubei430030

Aims More and more advances show that hydrogen sulfide （H2S） sulfhydrates functional proteins and regulates their actions. However, much less is known about the endogenous sulfhydration of key proteins under physiological conditions. Methods Biotin-switch assay, electrophysiological recording, RNA interference, full ESI-MS scan et al. Results Herein, we found that the protein sulfhydration was dynamically regulated by neuro- nal activity. H2S sulfhydrated and activated serine racemase （SR） in the hippocampus, resuhantly increased D- serine level. Notably, sulfhydration of SR was markedly promoted by neuronal stimulation and underlay activity-de- pendent changes of D-serine availability. Both genetic knockdown and pharmacological inhibition of cystathionine β-synthase （CBS）, the key H2S-producing enzyme in brain, attenuated hippoeampal long-term potentiation （LTP） , which can be reversed by exogenous supplement of H2S or D-serine. We also observed that the increase in LTP induced by H2S is dependent on D-serine and polysulfides. In aged rats, sulfhydration of SR was significantly decreased. Furthermore, exogenous supplement of H2S restored the level of sulfhydration and reversed the age-re- lated deficits in hippocampal LTP. Conclusion Our data provide direct evidence for the biological significance of endogenous sulfhydration in physiological conditions and demonstrate a pivotal role of activity-dependent sulfhydra- tion in synaptic plasticity.

关键词： hydrogen sulfide (H2S) polysulfides sulfhydration D-serine serine racemase (SR) synapticplasticity

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跨线桥下部结构方案论证及经济分析

中国市政工程 2001年第3期 38-42页

作者：郭辰健上海正弘工程造价咨询有限公司

对跨线桥下部结构桩的断面形式、成桩工艺、桩基的布置方式、盖梁结构形式等进行设计比较并作一定的经济分析论证。并对 2 2m多跨的跨线桥六个比较方案进行桩基设计布置、盖梁和立柱设计、主要材料数量比较。从工程造价比较中可以看出... 详细信息

对跨线桥下部结构桩的断面形式、成桩工艺、桩基的布置方式、盖梁结构形式等进行设计比较并作一定的经济分析论证。并对 2 2m多跨的跨线桥六个比较方案进行桩基设计布置、盖梁和立柱设计、主要材料数量比较。从工程造价比较中可以看出采用钻孔灌注桩造价最高 ,采用预制方桩和PHC桩造价比较接近。

关键词：跨线桥桩基施工方法经济分析

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卫生行政处罚案由名称的拟定规则

中国卫生监督杂志 2017年第5期24卷 426-431页

作者：曹文妹宗莲王丹丹郭晨健陈刚复旦大学公共卫生学院上海200032

目的总结提炼卫生行政处罚个案案由名称的拟定规则,为整个规范化案由库的构建提供基础支持。方法通过理论借鉴、对照提炼和实践总结等方法确立拟定规则。结果卫生行政处罚案由名称的结构表达分"作为"与"不作为"两类,每类分"行为"和"行为... 详细信息

目的总结提炼卫生行政处罚个案案由名称的拟定规则,为整个规范化案由库的构建提供基础支持。方法通过理论借鉴、对照提炼和实践总结等方法确立拟定规则。结果卫生行政处罚案由名称的结构表达分"作为"与"不作为"两类,每类分"行为"和"行为+结果"两种形式,共两类4种;案由名称表达要素的概括规则包括调整语句顺序概括、省略相关成分概括、使用上位概念概括、使用包括概念概括和使用术语概括等五大规则及若干细则。

关键词：卫生行政处罚案由拟定规则

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卫生行政处罚案由规范化研究结果分析

中国卫生监督杂志 2017年第5期24卷 432-437页

作者：郭晨健宗莲曹文妹王丹丹陈刚复旦大学公共卫生学院上海200032

目的基于理论研究对卫生行政处罚案由的梳理、规范结果进行分析,为卫生行政部门的监督执法工作提供依据。方法收集卫生法律法规文本,梳理和规范卫生行政处罚案由,运用Excel 2013对结果进行统计分析。结果从"小卫生观"着手纳入法律法规10... 详细信息

目的基于理论研究对卫生行政处罚案由的梳理、规范结果进行分析,为卫生行政部门的监督执法工作提供依据。方法收集卫生法律法规文本,梳理和规范卫生行政处罚案由,运用Excel 2013对结果进行统计分析。结果从"小卫生观"着手纳入法律法规109部,其中含有处罚条款的83部,从中梳理出804个卫生行政处罚案由;对卫生行政处罚案由进行归并,得到一级案由590个,其中有89个含有共303个次级案由;案由数量最多的是传染病防治、职业卫生和血液安全,分别占28.88%、11.49%和10.56%;"不作为类"案由数量最多,占54.58%;案由字数少于30个字的占92.71%。

关键词：卫生行政处罚案由规范化

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卫生行政处罚案由规范化研究概述

中国卫生监督杂志 2017年第5期24卷 418-421页

作者：宗莲王丹丹曹文妹郭晨健陈刚复旦大学公共卫生学院上海200032

卫生行政处罚案由规范化研究概述包括研究背景、研究目标、研究内容、资料来源、研究方法、技术路线和主要结果等。研究将科学归纳法、类别分析法、专家咨询和论证作为理论研究方法,旨在确立卫生行政处罚案由规范化指导思想、原则、方... 详细信息

卫生行政处罚案由规范化研究概述包括研究背景、研究目标、研究内容、资料来源、研究方法、技术路线和主要结果等。研究将科学归纳法、类别分析法、专家咨询和论证作为理论研究方法,旨在确立卫生行政处罚案由规范化指导思想、原则、方法步骤、规则和确定方法。构建成规范化卫生行政处罚案由库,梳理出含109部卫生法律法规的文本库,筛选出83部含卫生行政处罚条款的法律法规,编排出含8项要素、804条案由条目的案由池,归并形成含590个规范化案由的案由库。

关键词：卫生行政处罚案由规范化概述