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化工进展 2021年第7期40卷 3632-3644页

作者：王宇潘振海上海交通大学机械与动力工程学院上海200240

为揭示非水平表面上微小蒸发液滴的传热传质特性,本文在准稳态模型的假设下构造三维液滴模型,综合考虑了蒸气扩散、蒸发冷却以及气相域中的自然对流这3种传输机理,对水平以及竖直基底上液滴的蒸发过程进行数值研究。通过分析气液界面上... 详细信息

为揭示非水平表面上微小蒸发液滴的传热传质特性,本文在准稳态模型的假设下构造三维液滴模型,综合考虑了蒸气扩散、蒸发冷却以及气相域中的自然对流这3种传输机理,对水平以及竖直基底上液滴的蒸发过程进行数值研究。通过分析气液界面上温度分布、蒸发通量分布及总蒸发率的变化,重点探究了基底过热度以及重力的改变对液滴蒸发特性的影响。结果表明:与水平基底上温度的对称分布不同,竖直基底上气液界面温度分布表现出明显的非对称性,且非对称性随基底过热度的升高而增强,最低温度点不再位于液滴顶点,而向一侧偏移。此外,水平基底上气液界面局部蒸发通量呈对称分布,各截面分布相似,而竖直基底上局部蒸发通量分布则呈现出显著的非对称性以及各截面异性,非对称性随着基底过热度的升高而增强,这是重力改变后气相域自然对流发生改变的结果。与水平基底相比,竖直基底上蒸发率更高,总蒸发时间更少。最后,基底由水平变为竖直时,液滴内部流场由对称双涡转变为非对称单涡,单涡流速显著大于双涡流速,液滴内流速随基底过热度的上升而增大,单涡环流造成了气液界面温度分布的改变以及最低温度点的偏移。

关键词：液滴汽化计算流体力学自然对流蒸发冷却传热扩散

Effectiveness and safety of heat-sensitive moxibustion on bronchial asthma:a Meta-analysis of randomized control trials

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Journal of Traditional Chinese Medicine 2014年第4期34卷 392-400页

作者： Jun Xiong Zhongyong Liu Rixin Chen Dingyi Xie zhenhai Chi Bo Zhang Department of Acupuncture-Moxibustion Rehabilitation Hospital Affiliated to the Jiangxi University of Traditional Chinese Medicine

OBJECTIVE: To systematically evaluate the effectiveness and safety of heat-sensitive moxibustion(HSM)***: Large databases in China and overseas were searched by electronic and manual means to collect information on randomized controlled trials(RCTs).Two evaluators independently extracted data and evaluated the quality of RCTs according to Cochrane Review Handbook v5.0. RevMan v5.0.20 was used for ***: Fourteen RCTs involving 637 patients were *** RCTs compared the effects of HSM and Western Medicine. After 3-month treatment and after 6-month follow-up, there was no significant difference in effective rate [relative risk(RR)=1.01, 95% CI(0.92, 1.12), and 1.12,(0.93, 1.36),respectively], in the asthma control test score of asthma symptoms [weighted mean difference(WMD)=﹣1.54, 95% CI(﹣3.54, 0.47), and 1.41,(﹣0.48, 3.29), respectively] and in the forced expiratory volumein 1 second(FEV1)and peak expiratory flow(PEF). One RCT compared the effect of HSM with warm-suspended moxibustion. After 6-month follow-up, there was a significant difference in FEV1 and PEF [WMD=0.51, 95% CI(0.10, 0.92), and 1.78,(1.06, 2.50), respectively]. After 3-month treatment,there was no significant difference between the two groups. One RCT compared the effect of HSM with acupoint application. After 3-month treatment, there was no significant difference in the effectiverate[RR=0.68,95%CI(0.42,1.12)].CONCLUSION: HSM did not show superiority to conventional Western Medicine and acupoint application in terms of curative effects, and may be superior to warm-suspended moxibustion with regard to long-term curative effects. Because of low quality of the included RCTs, this conclusion must be bolstered with higher-quality RCTs.

关键词： Heat-sensitive moxibustion Asthma Randomized controlledtrials Meta-analysis

基于分频智能反演的储层预测研究--以大庆黑鱼泡南部探区为例

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地质科学 2021年第4期56卷 1052-1061页

作者：姜振海中石油大庆油田有限责任公司第三采油厂黑龙江大庆163000

分频反演是近年发展起来的一种先进的地震反演技术。大庆黑鱼泡南部探区存在鼻状构造,是油气富集有利部位。本文基于分频智能反演的储层预测研究,根据地震资料频谱确定分频参数:低频在8 Hz左右,主频35 Hz左右,高频60 Hz左右。根据地震... 详细信息

分频反演是近年发展起来的一种先进的地震反演技术。大庆黑鱼泡南部探区存在鼻状构造,是油气富集有利部位。本文基于分频智能反演的储层预测研究,根据地震资料频谱确定分频参数:低频在8 Hz左右,主频35 Hz左右,高频60 Hz左右。根据地震频谱计算得到具有一定带宽的低、中、高频属性。运用支持向量机算法对目标曲线进行分频智能学习训练,学习后曲线相关性达到0.90,满足储层预测的要求。最终,本文将重构曲线与三维地震数据的非线性映射关系引入到二维地震进行分频智能反演,得到二维区阻抗体,对砂岩的预测性较好,为后续的地质建模提供了良好的基础输入数据。

关键词：分频智能反演储层预测

The Anatomy of Dorsal Ramus Nerves and Its Implications in Lower Back Pain

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Neuroscience & Medicine 2012年第2期3卷 192-201页

作者： Linqiu Zhou Carson D. Schneck zhenhai Shao Department of Anatomy Temple University School of Medicine Philadelphia USA Department of Orthopedics Zhujiang Hospital Nanfang Medical University Guangzhou China Departments of Rehabilitation Medicine Jefferson Medical College Thomas Jefferson University Philadelphia USA

This article reviews the relationship between the spinal dorsal ramus system and low back pain, including the anatomy, clinical findings, pathogenesis and treatment of low back pain mediated by spinal dorsal ramus and zygapophysial (facet) joint syndrome. Each spinal dorsal ramus arises from the spinal nerve and then divides into a medial and lateral branch. The medial branch supplies the tissues from the midline to the zygapophysial joint line and innervates two to three adjacent zygapophysial joints and their related soft tissues. The lateral branch innervates the tissues lateral to the zygapophysial joint line. The clinical pain presentations follow these anatomic distributions, which can be used for localizing the involved dorsal ramus. The diagnosis can be confirmed by performing a single dorsal ramus block that results in relief of pain and muscle spasm. Etiologically, any factor that stimulates the spinal dorsal ramus can cause low back pain, which is distinct from zygapophysial joint syndrome. Clinically, L1 and L2 are the most common sites of dorsal rami involvement. Treatment includes spinal dorsal ramus injection therapy and percutaneous neurotomy. Summarily, irritation of the spinal dorsal ramus system is a potential source of low back pain. Based on the anatomy and clinical presentation, the involved spinal dorsal ramus can be localized and treated.

关键词： Low Back Pain Spinal Dorsal Ramus Syndrome Medial Branch and Lateral Branch Zygapophysial Joint Spinal Dorsal Ramus Injection and Neurotomy

Nitrogen-doped graphene nanosheets as high efficient catalysts for oxygen reduction reaction

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Chinese Science Bulletin 2012年第22期57卷 3065-3070页

作者： CI SuQin WU YongMin ZOU JianPing TANG LongHua LUO ShengLian LI JingHong WEN zhenhai Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control Nanchang Hangkong University Nanchang 330063 China Department of Chemistry Beijing Key Laboratory for Microanalytical Methods and Instrumentation Tsinghua University Beijing 100084 China

It is of great significance in exploring alternative catalysts to platinum (Pt)-based materials for oxygen reduction reaction (ORR),because this reaction is invariably involved in various fuel cells and metal-air *** herein reported the nitrogen doped graphene nanosheets (NGNSs) with pore volume of as high as 3.42 m 3 /g and investigated their potential application as ORR catalysts,it was demonstrated the NGNSs featured high activity,improved kinetics and excellent long-term stability for *** NGNSs were successfully used as cathode catalysts of microbial fuel cells (MFCs) and performed even better than the commercial Pt/C (Pt 10%) catalysts at the maximum power output.

关键词： nitrogen doped graphene oxygen reduction reaction cathode catalysts microbial fuel cell

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Advancing Energy Systems with In-Situ and Operando Surface-Enhanced Raman Scattering Spectroscopy

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CCS Chemistry 2024年第6期6卷 1403-1421页

作者： Haoming Bao Shi Xuan Leong Jaslyn Ru Ting Chen zhenhai Shi Suli Chen Yan Lv Tianxi Liu In Yee Phang Xing Yi Ling Key Laboratory of Synthetic and Biological Colloids Ministry of EducationInternational Joint Research Laboratory for Nano Energy CompositesSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122 School of Chemistry Chemical Engineering and BiotechnologyNanyang Technological UniversitySingapore 637371

Surface-enhanced Raman scattering spectroscopy(SERS)has emerged as a powerful analytical technique to enable nanoscale investigations of energy *** mini-review focuses on the applications of in-situ and operando SERS in energy-related research,highlighting its unique capabilities and significant contributions to understanding energy storage and conversion *** first introduce the fundamental principles of SERS,key SERS-derived techniques,and commonly employed ***,we delve into the diverse applications of in-situ and operando SERS across various energy systems,encompassing photocatalytic and electrocatalytic systems,fuel cells,solar cells,and ***,we conclude with our perspective on the current challenges and prospects in this *** hope thismini-review serves as an essential overview to guide the design and implementation of in-situ and operando SERS studies of energy systems.

关键词： surface-enhanced Raman scattering spectroscopy in-situ operando energy systems photocatalysis electrocatalysis fuel cells solar cells batteries

Efficiency-loss analysis of monolithic perovskite/silicon tandem solar cells by identifying the patterns of a dual two-diode model’s current-voltage curves

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Journal of Semiconductors 2023年第8期44卷 68-77页

作者： Yuheng Zeng Zetao Ding Zunke Liu Wei Liu Mingdun Liao Xi Yang Zhiqin Ying Jingsong Sun Jiang Sheng Baojie Yan Haiyan He Chunhui Shou zhenhai Yang Jichun Ye Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201China University of Chinese Academy of Sciences Beijing 100049China Zhejiang Engineering Research Center for Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology&EngineeringCASNingbo 315201China Zhejiang Energy Group R&D Hangzhou 310003China

In this work,we developed a simple and direct circuit model with a dual two-diode model that can be solved by a SPICE numerical simulation to comprehensively describe the monolithic perovskite/crystalline silicon(PVS/c-Si)tandem solar *** are able to reveal the effects of different efficiency-loss mechanisms based on the illuminated current density-voltage(J-V),semi-log dark J-V,and local ideality factor(m-V)*** effects of the individual efficiency-loss mechanism on the tandem cell’s efficiency are discussed,including the exp(V/VT)and exp(V/2VT)recombination,the whole cell’s and subcell’s shunts,and the Ohmic-contact or Schottky-contact of the intermediate *** can also fit a practical J-V curve and find a specific group of parameters by the trial-and-error *** the fitted parameters are not a unique solution,they are valuable clues for identifying the efficiency loss with the aid of the cell’s structure and experimental *** method can also serve as an open platform for analyzing other tandem solar cells by substituting the corresponding circuit *** summary,we developed a simple and effective methodology to diagnose the efficiency-loss source of a monolithic PVS/c-Si tandem cell,which is helpful to researchers who wish to adopt the proper approaches to improve their solar cells.

关键词： monolithic perovskite/silicon tandem solar cell efficiency-loss analysis dual two-diode model SPICE numerical simula-tion

Regulation of Reversible Dissociation of LHCII from PSII by Phosphorylation in Plants

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American Journal of Plant Sciences 2014年第2期5卷 241-249页

作者： zhenhai Cui Yanpeng Wang Ao Zhang Lijun Zhang Liaoning Province Research Center of Plant Genetic Engineering Technology Shenyang China Liaoning Province Research Center of Plant Genetic Engineering Technology Shenyang China Biologi-cal Science and Technology College Shenyang Agri-cultural University Shenyang China

LHCII is a crucial light-harvesting pigment/protein complex in photosystem II (PSII) supercomplex. It also participates in the light energy redistribution between photosystems and in the photoprotection via its reversible dissociation with PSII and PSI (photosystem I). This reversible detachment of LHCII is regulated by phosphorylation of its own and PSII core protein. Under low light conditions, LHCII is phosphorylated and dissociated with PSII core protein complex and combined with PSI, which balances the excitation energy between PSII and PSI;Under high light environment, the phosphorylation of PSII core proteins makes LHCII detach from PSII. The dissociated LHCII presents in a free state, which involves in the thermal dissipation of excess excitation energy. During photodamage, dual phosphorylations of both PSII core proteins and LHCII complexes occur. The phosphorylation of D1 is conductive to the disintegration of photodamaged PSII and the cycle of repair. In this circumstance, the phosphorylation of LHCII is induced by reactive oxygen species (ROS) and then the phosphorylated LHCII migrates to PSI, into the repair cycle of damaged PSII. The ferredoxin (Fdr) and thioredoxin (Tdr) system may play a possible central role in the phosphorylation regulation on LHCII dissociation.

关键词： Light-Harvesting Complex II (LHCII) Phosphorylation Photosystems Photoinhibition Ferredoxin and Thioredoxin System

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东亚区域合作与中日关系的发展

世界经济研究 2006年第12期 64-68,15页

作者：孙震海上海社会科学院世界经济研究所

一个时期以来,在经济关系已经密不可分的情况下,中日政治关系却无法实现对称的发展。日本新领导人主政之后,对亚洲邻国的政策有所调整,并采取了相应的行动。在两国的共同努力下,双方关系出现了某些趋向好转的积极势头。但是,中日双边关... 详细信息

一个时期以来,在经济关系已经密不可分的情况下,中日政治关系却无法实现对称的发展。日本新领导人主政之后,对亚洲邻国的政策有所调整,并采取了相应的行动。在两国的共同努力下,双方关系出现了某些趋向好转的积极势头。但是,中日双边关系发展的政治基础并不稳固。在这种情况下,一方面,应该继续进行双边的努力;另一方面,也有必要借助多边机制,为双边关系的稳定和发展创造积极的条件。东亚区域经济合作方兴未艾,中日两国是东亚区域经济合作的重要推动力量,但由于双边关系因素,未能在区域经济合作进程中形成更多的合力。正因为如此,一方面,在东亚区域经济合作中,双方都有很多可为之事;另一方面,区域经济合作的发展,又会为中日两国提供在多边框架下,形成相对比较稳定的双边关系的积极条件。基于上述认识,本文主张中日两国应积极共同参与东亚区域经济合作,借助多边手段和机制,维护双边关系的稳定和发展。

关键词：中日关系多边合作双边关系稳定