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Research and Analysis of Regional Ecological Positioning in Planning Environmental Impact Assessment

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Meteorological and Environmental Research 2022年第5期13卷 19-24页

作者： Jianqiao QIN Donghang JIANG Fuxing GU Meng HU Rongjin YANG Yingli JIE zeming zheng Haojia XU Xiaoxiao LIAO College of Environmental and Chemical Engineering Zhaoqing UniversityZhaoqing 526061China Guangdong Provincial Key Laboratory of Environmental Health and Land Resource Zhaoqing UniversityZhaoqing 526061China Guangdong Zhonghao Survey and Design Consulting Co. Ltd.Zhaoqing 526061China Chinese Research Academy of Environmental Sciences Beijing 100012China

The regional ecological positioning of one area is based on the region’s ecological orientation by the country or a larger *** with the region’s natural geographical features,ecological background,main ecological problems,regional ecological structure,pattern,process,function and service,etc.,the position of a certain area in ecological space,structure,process,function and service,*** determined through the analysis and *** ecological positioning is an important prerequisite and core basis for regional ecological impact ***,in the current regional ecological impact assessment,most of them have not analyzed and studied the regional ecological *** to the lack of research on regional ecological positioning,it is rare to apply the research results of regional ecological positioning to the establishment of regional ecological objectives and the construction of index *** ecological positioning does not guide the direction of regional ecological protection and construction well,and there is a general tendency of regional ecological positioning being one-sided and *** paper analyzes the necessity and importance of research of regional ecological positioning,puts forward the technology framework of study on regional ecological *** regional ecological positioning research in planning ecological impact assessment of the Chengdu-Chongqing Economic Zone as an example,how to carry out the study on the regional ecological positioning and how to apply the results of the study on the regional ecological positioning in regional ecological impact assessment are explained and illustrated.

关键词： Regional planning Ecological impact assessment Ecological positioning Chengdu-Chongqing Economic Zone

Surface Modification of NiW Alloy Substrates

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稀有金属材料与工程 2011年第S3期40卷 380-382页

作者： Wang Xue1, 2, Li Chengshan2, Yu zeming2, zheng Huiling2, Ji Yongbin2, Chen Zewen 1, 2, Fan Zhanguo 1 1Northeastern University, Shenyang 110004, China 2Northwest Institute for Non-ferrous Metal Research, Xi’an 710016, China NW Inst Nonferrous Met Res Superconducting Mat Res Ctr Xian 710016 Peoples R China Northeastern Univ Shenyang 110004 Peoples R China

We have studied the adsorption of elemental S on the surfaces of NiW alloy substrates where elementary sulfur was used as sulfur source. Compared with those previous investigations which used H2S as the sulfur source and operated in an ultra-high vacuum chamber, we used elemental sulfur as the sulfur source which does not need an ultra-high vacuum chamber but Ar-H protection atmosphere in the process of sulfuration. After sulfuration, epitaxial LZO buffer layers were deposited on these substrates directly. The samples were investigated by means of AFM, XPS, SEM and XRD in this study. The results show that after sulfuration, S forms a c (2×2) structure at a coverage of 0.5 ML, in agreement with previous results, representing the effectiveness of elemental sulfur during the sulfuration process. The c (2×2)-S superstructure on the surface of the NiW substrates has optimized the La2Zr2O7(LZO) buffer layer texture.

关键词： NiW substrates sulfuration c (2×2) structure buffer layer

新形势下利用信息技术提升新能源场站继保定值计算和管理水平的思考与探索

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风力发电 2022年第3期29卷 6-11页

作者：郑泽名冯冶龙源(北京)风电工程技术有限公司北京100034

继保定值计算和管理工作一直是新能源场站运维工作的难点和薄弱环节。本文主要以风力发电站为例,从风电场继保定值计算、风电场继保定值单管理、风电场继保定值工作中的困难以及信息技术在未来继保定值管理中的应用四个方面,探讨目前风... 详细信息

继保定值计算和管理工作一直是新能源场站运维工作的难点和薄弱环节。本文主要以风力发电站为例,从风电场继保定值计算、风电场继保定值单管理、风电场继保定值工作中的困难以及信息技术在未来继保定值管理中的应用四个方面,探讨目前风力发电站继保定值计算和管理工作中存在的问题。本文针对继电保护定值计算和定值单管理中存在的问题提出自己的见解,为从事新能源发电站继保定值的工作人员提供参考与借鉴。

关键词：继电保护新能源发电站信息化建设

关于龙源风电场输变电设备预试管理数字化建设的探索与思考

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风力发电 2021年第4期28卷 1-3页

作者：郑泽名张石龙源(北京)风电工程技术有限公司北京100034

风电场输变电设备预防性试验是保证风电场设备可靠运行的重要手段,信息化、标准化作为提升发电企业运营管理效率的重要手段已经是大势所趋,本文主要介绍龙源(北京)风电工程技术有限公司在输变电设备预试信息化建设方面的思考与探索。

关键词：风电场预防性试验信息技术

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火焰撞击障碍物形成的溢流火焰融合行为研究

中国安全科学学报 2021年第4期31卷 171-176页

作者：邢朝亮黄咸家何乐祝赫郑泽铭广州中国科学院工业技术研究院核电火灾安全联合实验室广东广州511458 中广核工程有限公司核电安全监控与装备国家重点实验室广东深圳518124

为深入了解核电厂横向多层电缆桥电缆火灾,针对横向多层电缆火焰撞击障碍物形成的溢流火焰融合现象开展试验研究。试验分别在10、14、28、42、56和84 kW等不同火焰热释放速率(HRR)和0.1、0.2、0.3、0.4和0.5 m等不同挡板-燃烧器距离条... 详细信息

为深入了解核电厂横向多层电缆桥电缆火灾,针对横向多层电缆火焰撞击障碍物形成的溢流火焰融合现象开展试验研究。试验分别在10、14、28、42、56和84 kW等不同火焰热释放速率(HRR)和0.1、0.2、0.3、0.4和0.5 m等不同挡板-燃烧器距离条件下进行。对比分析不同工况下的火焰间歇概率图,引入火焰融合概率来描述火焰融合现象,发现火焰的融合行为可由火焰HRR和挡板-燃烧器距离的比值来量化区分。当比值小于200时,溢流火火焰完全不融合,为不融合区;当比值大于600时,溢流火火焰完全融合,为完全融合区;当比值大于200小于600时,溢流火火焰间歇融合,为间歇融合区。

关键词：火焰撞击障碍物溢流火火焰融合热释放速率(HRR)

适用于新能源场站继电保护定值计算的软件平台架构设计

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风力发电 2022年第3期29卷 33-37页

作者：冯冶郑泽名龙源(北京)风电工程技术有限公司北京市西城区100034

新能源场站继电保护定值校核是保证输变电设备可靠运行的重要手段,信息化、标准化作为提升发电企业运营管理效率的重要手段已经是大势所趋,因此需要研究继电保护定值智能校核方法。首先研究继电保护定值在线校核及智能整定系统架构,开... 详细信息

新能源场站继电保护定值校核是保证输变电设备可靠运行的重要手段,信息化、标准化作为提升发电企业运营管理效率的重要手段已经是大势所趋,因此需要研究继电保护定值智能校核方法。首先研究继电保护定值在线校核及智能整定系统架构,开发该系统选用时下流行的SpringBoot架构作为后端框架,选用***作为前端框架;研究并开发了基础配置与系统管理、继电保护定值计算、继电保护定值管理、跳闸管理及其他模块五大部分,通过模块间相互关联实现总体设计目标。

关键词：新能源定值校核 SpringBoot架构

Phase equilibrium modeling of zircon stability in mantle peridotite:Implication for crust-mantle interaction

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Science China Earth Sciences 2022年第2期65卷 282-298页

作者： Hua XIANG Jianping zheng Yibing LI zeming ZHANG Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China School of Earth Sciences State Key Laboratory of Geological Processes and Mineral ResourcesChina University of GeosciencesWuhan 430074China

Zircon is a common accessory mineral in various rocks,especially in the crustal *** is the best mineral for U-Pb ***,trace elements and isotopes of the mineral can also provide much information concerning the formation and evolution of *** are a growing number of reports of zircon existing in mantle ***,it is generally considered that zircon is unlikely crystallized in ultrabasic rocks due to SiO_(2)-*** this paper,the SiO_(2) activity and zircon/baddeleyite transition curve at different conditions were calculated through thermodynamic phase equilibrium modeling,to reveal the main factors affecting the SiO_(2) activity and the stability of zircon/baddeleyite in ultrabasic and basic rocks,especially in mantle *** results provide a thermodynamic basis for interpreting the genesis and significance of zircon in mantle *** is,the SiO_(2) activity is mainly controlled by stable mineral assemblages and temperature-pressure *** orthopyroxene+olivine assemblage in peridotite as an effective buffer restricts the SiO_(2) activity in a relatively high range with a small *** upper temperature limit of zircon can reach more than 1500℃ with this mineral *** the low-temperature serpentinization of peridotite,the replacement of olivine and pyroxene by serpentine can result in a significant decrease of SiO_(2) activity,and baddeleyite can be stabilized at<530℃ and<2.7 *** peridotite is strongly metasomatized by the SiO_(2)-bearing fluid,the addition of SiO_(2) can increase its activity and make zircon stable at low *** SiO_(2) activity in ultrabasic-basic rocks is not only positively correlated with the SiO_(2) content but also negatively correlated with the Ca and Na contents of *** is because Ca and Na preferentially combine with Si and Al to form Si-rich minerals,such as clinopyroxene and *** process will consume excessive SiO_(2),decreasing

关键词： Zircon Baddeleyite Phase equilibrium modeling Mantle peridotite Ultrabasic rock

考虑桨距角控制的双馈风电机组高电压穿越控制策略

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电气自动化 2024年第1期46卷 115-118页

作者：苏剑涛冯昊郑泽名王健蔡婷婷国家能源集团龙源风电工程技术公司北京100089 现代电力系统仿真控制与绿色电能新技术教育部重点实验室(东北电力大学) 吉林吉林132012

针对基于传统控制策略双馈风电机组高电压穿越存在超速脱网风险的问题,提出一种考虑桨距角控制的高电压穿越控制策略。高电压穿越期间,一方面通过控制风电机组为电网提供无功支撑;另一方面,当转子转速达到参考值时启动桨距角控制,抑制... 详细信息

针对基于传统控制策略双馈风电机组高电压穿越存在超速脱网风险的问题,提出一种考虑桨距角控制的高电压穿越控制策略。高电压穿越期间,一方面通过控制风电机组为电网提供无功支撑;另一方面,当转子转速达到参考值时启动桨距角控制,抑制转子转速上升。仿真结果表明,与传统控制策略相比,所提控制策略可使双馈风电机组在兼顾对电网提供无功支撑和避免转子转速越限两个目标下实现高电压穿越。

关键词：双馈感应发电机高电压穿越控制策略桨距角控制超速脱网

Toxic effects of three perfluorinated or polyfluorinated compounds(PFCs)on two strains of freshwater algae:Implications for ecological risk assessments

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Journal of Environmental Sciences 2023年第9期131卷 48-58页

作者： Liangliang Zhang Xiaowei zheng Xianglin Liu Jue Li Yanyao Li zeming Wang Nan zheng Xiangrong Wang zhengqiu Fan Department of Environmental Science and Engineering Fudan UniversityShanghai 200433China Laboratory of Industrial Water and Ecotechnology Department of Green Chemistry and TechnologyGhent UniversityKortrijk 8500Belgium Jinan Environmental Research Academy Jinan 250102China

Perfluorinated or polyfluorinated compounds(PFCs)continue entering to the environmental as individuals or mixtures,but their toxicological information remains largely ***,we investigated the toxic effects and ecological risks of Perfluorooctane sulfonic acid(PFOS)and its substitutes on prokaryotes(Chlorella vulgaris)and eukaryotes(Microcystis aeruginosa).Based on the calculated EC50 values,the results showed that PFOS was significantly more toxic to both algae than its alternatives including Perfluorobutane sulfonic acid(PFBS)and 6:2 Fluoromodulated sulfonates(6:2 FTS),and the PFOS-PFBS mixture was more toxic to both algae than the other two PFC *** action mode of binary PFC mixtures on Chlorella vulgaris was mainly shown as antagonistic and on Microcystis aeruginosa as synergistic,by using Combination index(CI)model coupled with Monte Carlo *** mean risk quotient(RQ)value of three individual PFCs and their mixtures were all below the threshold of 10^(−1),but the risk of those binary mixtures were higher than that of PFCs individually because of their synergistic *** findings contribute to enhance the understanding of the toxicological information and ecological risks of emerging PFCs and provide a scientific basis for their pollution control.

关键词： Toxicity Combination index model Monte Carlo simulation Action mode Algae