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Development and demonstration Plant Operation of Opposed Multi-Burner Coal-water Slurry Gasification Technology

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Development and demonstration Plant Operation of Opposed Mul...

Ultralight and superelastic MXene/reduced graphene oxide aerogels for electromagnetic interference shielding

The 4th Joint China/Japan Chemical Engineering Symposium

作者： wang Fuchen*, zhou Zhijie, dai Zhenghua, Gong Xin, Yu Guangsuo, Liu Haifeng, wang Yifei, Yu Zunhong (Institute of Clean Coal Technology, East China University of Science and Technology, Shanghai 200237)

Coal gasification technology is the base for the process industries of coal-based chemical products(such as ammonia,methanol and DME), liquid fuel, advanced IGCC power generation, poly-generation,hydrogen, fuel cell et al.. It is the common and key technology of these industries. In this paper, the features ofOpposed Multi-Burner (OMB) gasification technology, method and process of research and development, andthe operation results of pilot plant and demonstration plants have been introduced. The operation results ofdemonstration plants show that when Beisu coal as feedstock, OMB CWS gasification process in YankuangCathy Coal Co. Ltd. has higher carbon conversion by 3 percent points, lower specific oxygen consumption by%, and lower specific carbon consumption by 2% than that of Texaco CWS gasification in LunanFertilizer Plant. When Shenfu coal as feedstock, OMB CWS gasification process in Hua-lu Heng-shengChemical Co. Ltd has higher carbon conversion by more than 3 percent points, lower specific oxygenconsumption by %, and lower specific coal consumption by % than that of Texaco CWS gasificationprocess in Shanghai Coking & Chemical Corporation. OMB CWS gasification technology is proven byindustrial experience to have high product yield, low oxygen and coal consumption and robust and safeoperation

关键词： Opposed Multi-Burner coal-water slurry gasification research and development demonstration plants

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Nano Research 2025年第1期18卷 1-9页

作者： Xinfeng zhou Yang dai Guoyao Yue Yiman Zhang Lulu Li Zhong-Zhen Yu Peng Min Hao-Bin Zhang 21 State Key Laboratory of Organic-Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Beijing Key Laboratory of Advanced Functional Polymer Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029China Present address:BOE Technology Innovation Center BOE Technology Group Co.Ltd.Beijing 100176China Xi’an Modern Chemistry Research Institute Xi’an 710065China

Lightweight aerogels feature multifunctionality and a high porosity,yet accompanied with poor structure recovery under large strain *** this work,we develop an air bubble-ice crystal dual template and annealing strategy to integrate low density and high resilience for the conductive transition metal carbides/nitrides(MXene)composite *** air bubbles and ice crystals synergistically exclude the nanosheets to the gas-liquid interfaces,thereby constructing unique Y-shaped junctions and robust *** annealing process greatly enhances the interlayer *** external load,the Yshaped structures prevent the stress concentration at the junctions by transferring the forces to the skeleton for maintaining structural *** addition,the wrinkled and thick cell walls,together with the enhanced interlayer interactions,endow the aerogel with exceptional structural stability and *** a result,the MXene/reduced graphene oxide(RGO)composite aerogels exhibit superelasticity with reversible compressive strains of up to 95%.In addition,the electron bridging effect of the RGO sheets affords the aerogel to deliver excellent electromagnetic interference shielding performance,as high as 46.3 dB at 2.5 ***,the remarkable reshapeability of the aerogels allows for precise regulation of structure and performance(33.5-75.1 dB)by a simple wetting compression *** summary,this work offers helpful inspirations for developing lightweight and superelasticity aerogels for extensive applications.

关键词： lightweight superelasticity MXene aerogel electromagnetic interference shielding reshapeability

蛛网膜下腔出血的实验研究 Ⅱ.脑组织及线粒体中Ca^(2+)含量测定

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苏州医学院学报 1995年第5期15卷 808-809页

作者：王中周岱苏州医学院附属第一医院神经外科

直接提纯大鼠蛛网膜下腔出血(SAH)后脑组织中的线粒体,并用原子吸收分光光度法测定线粒体及脑组织中 Ca^(2+)含量,结果表明:SAH 后1h 线粒体中的 Ca^(2+)即增加(P<0.01),48h 时达到高峰,约为对照组的1.8倍;SAH 后4h 脑组织中 Ca^(2+)升... 详细信息

直接提纯大鼠蛛网膜下腔出血(SAH)后脑组织中的线粒体,并用原子吸收分光光度法测定线粒体及脑组织中 Ca^(2+)含量,结果表明:SAH 后1h 线粒体中的 Ca^(2+)即增加(P<0.01),48h 时达到高峰,约为对照组的1.8倍;SAH 后4h 脑组织中 Ca^(2+)升高,48h 时也达到高峰,约为对照组的9.6倍。提示 SAH 后脑组织及线粒体中发生了 Ca^(2+)超载,Ca^(2+)在 SAH 后的病理机制中起重要作用。但线粒体 Ca^(2+)变化较脑组织更早,提示 SAH 后线粒体功能首先受损。

关键词：脑组织线粒体蛛网膜下腔出血钙

NSGA-II算法的改进及其在风火机组多目标动态组合优化中的应用

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电力系统及其自动化学报 2017年第2期29卷 107-111页

作者：王进周宇轩戴伟李亚峰宋翼颉长沙理工大学电气与信息工程学院长沙410114 湖南工业大学电气与信息工程学院株洲412007

为了解决风火机组动态组合优化问题,重点针对时间耦合的动态特性及混合整数变量的求解,提出改进的基于非支配排序的遗传算法NSGA-Ⅱ(non-dominated sorting genetic algorithm-Ⅱ),引入节能减排理念,建立以CO2与SO2排放量及机组燃煤、... 详细信息

为了解决风火机组动态组合优化问题,重点针对时间耦合的动态特性及混合整数变量的求解,提出改进的基于非支配排序的遗传算法NSGA-Ⅱ(non-dominated sorting genetic algorithm-Ⅱ),引入节能减排理念,建立以CO2与SO2排放量及机组燃煤、启停费用最低的多目标函数。采用双层优化策略分别对启停离散量和负荷分配连续量进行寻优求解,引入模糊最大满意度决策法对Pareto解集进行决策,并嵌套在每次动态求解过程中。通过对某含风电场的10机组算例进行仿真,其结果表明了该方法的可行性和有效性。

关键词：节能减排机组组合多目标最大满意度决策基于非支配排序的遗传算法-II 双层优化

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大跨度拱形结构等效静风荷载研究（英文）

空间结构 2016年第4期22卷 85-94页

作者：潘羲丰汪汛周岱洪荣华马宁上海交通大学船舶海洋与建筑工程学院上海200240

根据计算流体动力学方法(CFD)以及有限元动力时程分析法数值模拟脉动风特性,获取脉动风速时程,并以此作为数值风洞模拟的入口边界条件.运用FLUENT对大跨度拱形结构进行脉动风作用下的结构非稳态分析,得到作用于结构的时程风压荷载.运用A... 详细信息

根据计算流体动力学方法(CFD)以及有限元动力时程分析法数值模拟脉动风特性,获取脉动风速时程,并以此作为数值风洞模拟的入口边界条件.运用FLUENT对大跨度拱形结构进行脉动风作用下的结构非稳态分析,得到作用于结构的时程风压荷载.运用ANSYS进行结构的风振响应计算,分析得到基于结构风振响应时程的等效静风荷载.在此基础上提出多目标等效静风荷载加权组合系数的定义,计算获得大跨度拱形结构的多目标等效静风荷载,并验证其计算精度.研究表明,在文中方法所得等效静风荷载作用下,结构静力响应计算结果与风振动力时程响应极值吻合.

关键词：大跨度拱形结构等效静风荷载多目标组合系数脉动风

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苎麻资源开发利用现状分析

粮食与饲料工业 2017年第5期 55-58页

作者：王满生王延周戴求仲中国农业科学院麻类研究所湖南长沙410205 湖南省畜牧兽医研究所动物营养与饲养技术研究室湖南长沙410131

主要从苎麻植物用途方面详细介绍了当前苎麻资源的开发利用现状,主要包括纤维用苎麻、药用苎麻和饲用苎麻,同时提出了饲用苎麻开发过程中存在的主要问题及相应的解决措施和建议,以期为苎麻饲料化研究提供一定的技术参考。

关键词：苎麻饲用药用选育栽培加工利用

Single-end Protection Scheme Based on Transient Power Waveshape for Hybrid HVDC Transmission Lines

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Journal of Modern Power Systems and Clean Energy 2023年第5期11卷 1673-1686页

作者： Feiyang dai Zexin zhou Xingguo wang China Electric Power Research Institute Co. Ltd.BeijingChina State Key Laboratory for Power Grid Safety and Energy Conservation BeijingChina

The recent in-depth development of hybrid highvoltage direct current(HVDC) transmission systems poses looming adaptability challenges to protection. The various and disparate direct current(DC) transmission topologies can profoundly affect the operating characteristics of DC transmission networks, which result in the lack of performance of conventional DC protection schemes in such topologies. This significantly limits the application of hybrid HVDC technologies. This paper proposes a single-end protection scheme based on the transient power waveshape for fast and sensitive detection and classification of different types of DC faults in hybrid HVDC transmission lines. The fault characteristics and their causes under different fault conditions are analyzed in detail with a pre-introduced linearized transient model of a hybrid HVDC transmission system, demonstrating that the formation of the fluctuation characteristics of local measurements is mainly determined by the buffering and absorption effects of lumped-parameter reactors on transient traveling-wave(TW) energy. Simulation results verify the sensitivity, rapidity, reliability, and anti-interference ability of the proposed scheme when applied to hybrid HVDC transmission lines. Furthermore, it is confirmed that the proposed scheme is adaptable to symmetric voltage-sourced converter(VSC) and conventional line-commutated converter(LCC) based HVDC transmission lines.

关键词： High-voltage direct current(HVDC)transmission system line protection traveling-wave(TW) line-commutated convrter floating threshold

An applicable calorimetric method for measuring AC losses of 2G HTS wire using optical FBG

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Science China(Technological Sciences) 2015年第3期58卷 545-550页

作者： wang YinShun zhou WeiWei dai JingShu State Key Laboratory of New Energy Power System North China Electric Power University Institute of Electrical Engineering Chinese Academy of Sciences Beijing Key Laboratory of High Voltage & Electromagnetic Compatibility North China Electric Power University

We present a new calorimetric method for measuring alternative current(AC)losses of high-temperature superconducting(HTS)tapes by optical fiber Bragg grating(FBG),which is particularly well suited for the AC loss measurement of Re BCO wires,so-called the second generation(2G)HTS *** with conventional calorimetric methods,the suggested method is both free of electromagnetic disturbance,magnetic field,and fast as well as ***-field AC losses are measured by the optical FBG method and the conventional lock-in-amplifier(LIA)technique,*** results show that the measured AC loss is in good agreement with those measured by the electric method,thus the presented calorimetric method would be available for measuring the AC loss of 2G wire and is expected to be generalized for the measurement of AC loss or thermal performances of HTS bulk.

关键词： AC losses calorimetric method 2G HTS wire calibration optical fiber Bragg grating(FBG)

YVO_4∶Eu纳米棒的合成及其磁性能研究

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陶瓷学报 2007年第2期28卷 79-83页

作者：王念陈文周静戴英武汉理工大学材料科学与工程学院 430070

在水热条件下,利用Na2EDTA为模板导向剂,合成了Eu掺杂的YVO4纳米棒,通过XRD、SEM、TEM、HRTEM和超导量子磁强计对产物的结构和磁学性能进行了表征和测试。结果表明,产物为纯净的四方锆石型结构的YVO4∶Eu纳米棒,其长度为0.5～1μm,直径... 详细信息

在水热条件下,利用Na2EDTA为模板导向剂,合成了Eu掺杂的YVO4纳米棒,通过XRD、SEM、TEM、HRTEM和超导量子磁强计对产物的结构和磁学性能进行了表征和测试。结果表明,产物为纯净的四方锆石型结构的YVO4∶Eu纳米棒,其长度为0.5～1μm,直径为30～100nm。模板剂和生长溶液的pH值决定着YVO4∶Eu纳米晶体的结构与形貌。在低温下,YVO4纳米晶体表现出明显的反铁磁性。与纯净的YVO4纳米棒相比,Eu掺杂的YVO4纳米棒的磁化系数明显增大,磁性能显著改善。

关键词： YVO4:Eu纳米棒模板剂 pH值磁学性能