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Investigation on the Long Term Operational Stability of Underground Energy Storage in Salt Rock

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Energy Engineering 2023年第1期120卷 221-243页

作者： Jun Zhou Shijie Fang Jinghong Peng Qing Li Guangchuan Liang Petroleum Engineering School Southwest Petroleum UniversityChengduChina Oil&Gas Sales Center of Sinopec Southwest Oil&Gas Company ChengduChina

Underground energy storage is an important function of all energy supply systems,and especially concerning the seemingly eternal imbalance between production and demand.Salt rock underground energy storage,for one,is widely applied in both traditional and renewable energy fields;and this particular technique can be used to store natural gas,hydrogen,and compressed air.However,resource diversification and structural complexity make the supply system increasingly uncertain with the passing years,leading to great challenges for energy storage facilities in the present,and perhaps going into the future as well.Hence,it is necessary to research the operation stability of underground energy storage further.In this paper,a stability evaluation index system of Underground Gas Storage(UGS)is constructed with natural gas as the main medium,according to FLAC 3D cavity creep simulation software,along with fuzzy membership function to comprehensively determine the impact factor scoring model;the subjective weight is calculated based on the improved Analytic Hierarchy Process(AHP),the objective weight is calculated by the Entropy Weight Method(EWM),the combined constant weight is obtained by combining the variance maximization theory,and introducing the variable weight theory to obtain a more accurate combined variable weight.Finally,with this all being considered and accounted for,and with the four different conditions designed for UGS deployment case analysis and verification taken into consideration,the combined variable weight evaluation achieved excellent results;compared with the traditional constant weight method,in fact,the new evaluation results are more rigorous and objective.

关键词： Improved AHP Entropy Weight Method(EWM) combination variable weight interlayer cavern creep simulation index scoring model

Effect of slag composition on corrosion resistance of high chromia refractory bricks for industrial entrained-flow gasifier

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Chinese Journal of Chemical Engineering 2023年第10期62卷 139-149页

作者： jinghong Gao Weiguang Su Xudong Song peng Lv Jun Yang Guangsuo Yu State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical EngineeringNingxia UniversityYinchuan 750021China Chinese Energy Ningxia Coal Industry Co. Ltd.Yinchuan 750021China Institute of Clean Coal Technology East China University of Science and TechnologyShanghai 200237China

The slag composition corresponding to different coals varies significantly,which directly affects the operation of industrial entrained-flow gasifier and the service life of refractory bricks.In this study,the corrosion resistance of several typical coal slags for gasification on high chromia refractory bricks was comparatively investigated by static laboratory crucible tests and thermodynamic simulations.The results demonstrated that the corrosion degree of high chromia refractory bricks by different coal slags was high-Ca/Na slag>high-Fe slag>high-Si/Al slag.The surface structure of the refractory was relatively flat after corrosion by high-Si/Al slag,and the primary corrosion reaction was the partial dissolution of the matrix by the slag.High-Fe slag was prone to the precipitation of iron phases as well as the formation of(Mg,Fe)(Al,Cr)_(2)O_(4)composite spinel layer at the slag/refractory interface.The high-Ca/Na slag was susceptible to react with the refractory to yield a low melting point phase,which led to the destruction of the matrix structure of the refractory and an isolated distribution of particles.In addition,the monoclinic ZrO_(2) in the refractory reacted with CaO in the slag to formed calcium zirconate,which loosened its phase toughening effect,was the primary factor that aggravated the refractory corrosion.

关键词： Entrained-flow gasifier Coal slag High chromia refractory Corrosion Permeation Viscosity

Deep Transcranial Magnetic Stimulation as a Potential Approach for Digital Pain Management in Patients with Psychotic Disorder

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Neuroscience Bulletin 2023年第1期39卷 89-93页

作者： Peijun Ju Di Zhao Cuizhen Zhu Yongjun Zheng Shiyu peng Haisu Wu Beibei Yang Zhenghui Yi Tifei Yuan jinghong Chen Shanghai Mental Health Center Shanghai Jiao Tong University School of MedicineShanghai 201108China

Dear Editor,Pain is a common and complex clinical problem which affects 28%-50%of the general population and is responsible for large health-related costs.People with chronic pain often develop nociceptive sensitization,having mood and anxiety disorders as comorbidities.Sustained pain may alter the processing of affective information in the brain,thereby inducing anxio-depressive disorders.

关键词： Pain pain clinical

核反应堆严重事故中气溶胶的吸湿增长研究进展

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核动力工程 2022年第2期43卷 138-151页

作者：王竞弘彭威于溯源清华大学能源与动力工程系热科学与动力工程教育部重点实验室北京100084 清华大学核能与新能源技术研究院先进反应堆工程与安全教育部重点实验室北京100084

可溶性气溶胶(以下简称气溶胶)的吸湿增长是影响核反应堆严重事故中放射性产物动力学行为的关键因素之一,本文对吸湿增长的理论模型、实验测量方法以及核安全领域吸湿增长的研究进展进行了总结。核安全领域气溶胶吸湿增长理论模型以K?h... 详细信息

可溶性气溶胶(以下简称气溶胶)的吸湿增长是影响核反应堆严重事故中放射性产物动力学行为的关键因素之一,本文对吸湿增长的理论模型、实验测量方法以及核安全领域吸湿增长的研究进展进行了总结。核安全领域气溶胶吸湿增长理论模型以K?hler理论为基础,描述了吸湿增长过程中气溶胶热物性等参数与环境参数的关系,在此基础上发展的多种改进模型更适用于实际问题的分析,已在NAUA-HYGROS、MELCOR等核安全气溶胶计算程序中得到广泛应用。实验测量也是研究气溶胶吸湿增长特性的重要手段,相比于可测量气溶胶整体吸湿能力但结果较为粗糙的重量法,电力平衡法、HTDMA法精度较高,且具备实时测量单个颗粒及多模态颗粒群的吸湿能力,在核事故气溶胶吸湿增长特性实验研究方面具有潜在应用前景。本文最后总结了严重核事故领域吸湿增长的现有应用研究,包括核事故典型气溶胶吸湿增长特性的理论模型与数值计算应用研究、吸湿增长实验研究,数值计算研究表明,将气溶胶吸湿增长特性纳入到核事故气溶胶计算程序中可以实现对核事故发生后气溶胶行为更为准确的预测分析,相关实验得到了CsOH、CsI等典型核事故气溶胶的吸湿增长特性。

关键词：核反应堆严重事故气溶胶吸湿增长 Khler理论吸湿增长因子

Potential mechanisms of non-suicidal self-injury(NSSI)in major depressive disorder:a systematic review

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General Psychiatry 2023年第4期36卷 220-230页

作者： Baichuan Wu Huifeng Zhang jinghong Chen Jiaye Chen Zhifen Liu Yuqi Cheng Tifei Yuan Daihui peng Division of Mood Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Shanghai Key Laboratory of Psychotic Disorders Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina General Psychiatry Editorial Office Shanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Psychiatry The First Hospital of Shanxi Medical UniversityTaiyuanShanxiChina Department of Psychiatry First Affiliated Hospital of Kunming Medical UniversityKunmingYunnanChina

Background Non-suicidal self-injury(NSSI)is a frequent and prominent phenomenon in major depressive disorder(MDD).Even though its prevalence and risk factors are relatively well understood,the potential mechanisms of NSSI in MDD remain elusive.Aims To review present evidence related to the potential mechanisms of NSSI in MDD.Methods According to Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 guidelines,articles for this systematic review were searched on Medline(through PubMed),Embase(through Elsevier),PsycINFO(through OVID)and Web of Science databases for English articles,as well as China National Knowledge Infrastructure(CNKI),SinoMed,Wanfang Data,and the Chongqing VIP Chinese Science and Technology Periodical(VIP)Databases for Chinese articles published from the date of inception to 2 August 2022.Two researchers(BW,HZ)independently screened studies based on inclusion and exclusion criteria and assessed their quality.Results A total of 25157 studies were searched.Only 25 of them were ultimately included,containing 3336 subjects(1535 patients with MDD and NSSI,1403 patients with MDD without NSSI and 398 HCs).Included studies were divided into 6 categories:psychosocial factors(11 studies),neuroimaging(8 studies),stress and hypothalamic-pituitary-adrenal(HPA)axis(2 studies),pain perception(1 study),electroencephalogram(EEG)(2 studies)and epigenetics(1 study).Conclusions This systematic review indicates that patients with MDD and NSSI might have specific psychosocial factors,aberrant brain functions and neurochemical metabolisms,HPA axis dysfunctions,abnormal pain perceptions and epigenetic alterations.

关键词： metabolism alterations mechanisms

核反应堆严重事故下气溶胶动态吸湿增长机理研究

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原子能科学技术 2023年第11期57卷 2077-2085页

作者：王竞弘于明锐于溯源彭威清华大学能源与动力工程系热科学与动力工程教育部重点实验室北京100084 中国核电工程有限公司北京100840 清华大学核能与新能源技术研究院先进反应堆工程与安全教育部重点实验室北京100084

核电站发生严重事故之后,安全壳内可溶性气溶胶会在高湿度环境下发生吸湿增长现象,并以改变气溶胶粒径、密度的方式显著影响原有的气溶胶动力学行为。为了描述吸湿平衡时间等气溶胶吸湿增长的过程参量,表征吸湿增长过程时间尺度,本研究... 详细信息

核电站发生严重事故之后,安全壳内可溶性气溶胶会在高湿度环境下发生吸湿增长现象,并以改变气溶胶粒径、密度的方式显著影响原有的气溶胶动力学行为。为了描述吸湿平衡时间等气溶胶吸湿增长的过程参量,表征吸湿增长过程时间尺度,本研究依据气溶胶吸湿的非平衡态过程构建了气溶胶动态吸湿模型,综合考虑吸湿过程中蒸汽质量守恒、能量守恒关系以及表面蒸汽压对气溶胶吸湿增长行为的影响,分析了气溶胶粒径变化率、吸湿平衡时间等吸湿过程参量。结果表明,在高湿度工况下,吸湿增长行为对小粒径颗粒的影响尤为显著。同时,吸湿过程中粒径变化率与时间呈对数变化规律,而吸湿平衡时间与粒径呈近似线性变化特征。

关键词：核反应堆严重事故气溶胶吸湿增长机理模型

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金属硫(磷)化物用于电化学析氢反应

应用化学 2018年第9期35卷 1093-1101页

作者：于鹏李景虹清华大学化学系生物有机磷化学与化学生物学重点实验室北京100084

电化学分解水(Water Splitting)是获得高纯度氢能的重要手段。因此,开发具有高活性低成本的电化学析氢反应(Hydrogen Evolution Reaction,HER)催化剂成为目前能源环境的研究热点之一。本文总结了常用于HER反应的过渡金属硫化物以及磷化... 详细信息

电化学分解水(Water Splitting)是获得高纯度氢能的重要手段。因此,开发具有高活性低成本的电化学析氢反应(Hydrogen Evolution Reaction,HER)催化剂成为目前能源环境的研究热点之一。本文总结了常用于HER反应的过渡金属硫化物以及磷化物非贵金属催化剂材料的合成方法,并且概况了如何构建特殊结构的金属硫化物及磷化物材料以调高材料的HER催化反应性能的方法,为开发其它高活性的非贵金属催化剂提供依据。

关键词：金属硫化物金属磷化物电化学析氢反应

Bone morphogenetic protein 4 (BMP4) promotes hepatic glycogen accumulation and reduces glucose level in hepatocytes through mTORC2 signaling pathway

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Genes & Diseases 2021年第4期8卷 531-544页

作者： Liqin An Qiong Shi Ying Zhu Hao Wang Qi peng jinghong Wu Yu Cheng Wei Zhang Yanyu Yi Zihao Bao Hui Zhang Yetao Luo Jiaming Fan Ministry of Education Key Laboratory of Diagnostic Medicine Department of Clinical BiochemistrySchool of Laboratory MedicineChongqing Medical UniversityChongqing400016PR China Department of Clinical Laboratory The Second Affiliated Hospital of Chongqing Medical UniversityChongqing400010PR China Clinical Epidemiology and Biostatistics Department Department of Pediatric Research InstituteChildren’s Hospital of Chongqing Medical UniversityChongqing400014PR China

Liver is an important organ for regulating glucose and lipid metabolism.Recent studies have shown that bone morphogenetic proteins(BMPs)may play important roles in regu-lating glucose and lipid metabolism.Inour previous studies,we demonstrated that BMP4 signif-icantly inhibits hepatic steatosis and lowers serum triglycerides,playing a protective role against the progression of non-alcoholic fatty liver disease(NAFLD).However,the direct impact of BMP4 on hepatic glucose metabolism is poorly understood.Here,we investigated the regulatory roles of BMP4 in hepatic glucose metabolism.Through a comprehensive analysis of the 14 types of BMPs,we found that BMP4 was one of the most potent BMPs in promoting hepatic glycogen accumulation,reducing the level of glucose in hepatocytes and effecting the expression of genes related to glucose metabolism.Mechanistically,we demonstrated that BMP4 reduced the hepatic glucose lewels through the activation of mTORC2 signaling pathway in vitro and in wivo.Collectively,our findings strongly suggest that BMP4 may play an essential role in regulating hepatic glucose metabolism.This knowledge should aid us to understand the molecular pathogenesis of NAFLD,and may lead to the development of novel therapeutics by exploiting the inhibitory effects of BMPs on hepatic glucose and lipid metabolism.

关键词： BMP4 Glucose metabolism Glycogen accumulation mTORC2 signaling Non-alcoholic fatty liver disease(NAFLD)

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高温气冷堆不规则颗粒气动曳力研究

原子能科学技术 2022年第S01期56卷 10-18页

作者：孙琦王晓钟王竞弘彭威清华大学核能与新能源技术研究院先进核能技术协同创新中心先进反应堆工程与安全教育部重点实验室北京100084 清华大学能源与动力工程系北京100084

颗粒气动曳力计算模型对预测颗粒传输行为具有重要意义。为建立适用于高温气冷堆内非球形石墨粉尘颗粒气动曳力的关联式,本文采用计算流体力学分析了颗粒气动曳力的产生机理和关键影响因素,并针对高温气冷堆中几种典型非球形颗粒,建立... 详细信息

颗粒气动曳力计算模型对预测颗粒传输行为具有重要意义。为建立适用于高温气冷堆内非球形石墨粉尘颗粒气动曳力的关联式,本文采用计算流体力学分析了颗粒气动曳力的产生机理和关键影响因素,并针对高温气冷堆中几种典型非球形颗粒,建立了适用于非球形颗粒曳力系数的关联式以及石墨粉尘的统计平均曳力系数模型。研究结果表明:颗粒雷诺数和来流角是影响曳力系数的重要参数,随着颗粒雷诺数的增加,曳力系数降低;而随着来流角的增加,曳力系数增大。本文提出的曳力系数预测模型能很好地体现石墨粉尘气动曳力受非球形参数和来流角的影响,为高温气冷堆中石墨粉尘运动特性的研究提供了基础。

关键词：高温气冷堆石墨粉尘气动曳力系数数值计算