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论经营者财务激励机制

统计教育 2003年第3期 35-37页

作者：向锐谭勇成都信息工程学院四川成都610103 南开大学天津300000

笔者在明确经营者财务激励机制含义和理论基础之后,深入分析了我国经营者财务激励机制现状和西方经营者财务激励机制主要模式,并提出了完善我国经营者财务激励机制的新思路。

关键词：经营者财务激励机制委托-代理理论需要层次理论人力资本理论经营者财务诱导机制财务约束机制设计模式基薪制年薪制激励股票期权激励解雇威胁激励非货币报酬激励外部力量激励

Mutual regulation of microglia and astrocytes after Gas6 inhibits spinal cord injury

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Neural Regeneration Research 2025年第2期20卷 557-573页

作者： Jiewen Chen Xiaolin Zeng Le Wang Wenwu Zhang Gang Li Xing Cheng Peiqiang Su yong Wan xiang Li Department of Spine Surgery The First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Guangdong Province Key Laboratory of Orthopedics and Traumatology GuangzhouGuangdong ProvinceChina

Invasive inflammation and excessive scar formation are the main reasons for the difficulty in repairing nervous tissue after spinal cord *** and astrocytes play key roles in the spinal cord injury micro-environment and share a close ***,the mechanisms involved remain *** this study,we found that after spinal cord injury,resting microglia(M0)were polarized into pro-inflammatory phenotypes(MG1 and MG3),while resting astrocytes were polarized into reactive and scar-forming *** expression of growth arrest-specific 6(Gas6)and its receptor Axl were significantly down-regulated in microglia and astrocytes after spinal cord *** vitro experiments showed that Gas6 had negative effects on the polarization of reactive astrocytes and pro-inflammatory microglia,and even inhibited the cross-regulation between *** further demonstrated that Gas6 can inhibit the polarization of reactive astrocytes by suppressing the activation of the Yes-associated protein signaling ***,in turn,inhibited the polarization of pro-inflammatory microglia by suppressing the activation of the nuclear factor-κB/p65 and Janus kinase/signal transducer and activator of transcription signaling *** vivo experiments showed that Gas6 inhibited the polarization of pro-inflammatory microglia and reactive astrocytes in the injured spinal cord,thereby promoting tissue repair and motor function ***,Gas6 may play a role in the treatment of spinal cord *** can inhibit the inflammatory pathway of microglia and polarization of astrocytes,attenuate the interaction between microglia and astrocytes in the inflammatory microenvironment,and thereby alleviate local inflammation and reduce scar formation in the spinal cord.

关键词： astrocytes Axl cell polarization Gas6 Hippo signal inflammatory micro-environment intercellular interaction microglia single-cell sequencing spinal cord injury

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中开式输油泵数值计算关键因素研究

石油化工设备 2015年第6期44卷 1-6页

作者：傅剑辉董亮向永谭赵建林徐胜权浙江佳力科技股份有限公司浙江杭州311223 江苏大学流体机械工程技术研究中心江苏镇江212013

应用泵数值模拟中常用的速度-压力耦合算法、进出口边界条件、收敛精度以及湍流模型,采用Fluent软件对4台不同比转数的中开式输油泵在设计工况下的内部流动进行了叶轮、蜗壳耦合数值计算。基于数值模拟结果,对中开式输油泵数值计算中的... 详细信息

应用泵数值模拟中常用的速度-压力耦合算法、进出口边界条件、收敛精度以及湍流模型,采用Fluent软件对4台不同比转数的中开式输油泵在设计工况下的内部流动进行了叶轮、蜗壳耦合数值计算。基于数值模拟结果,对中开式输油泵数值计算中的关键因素进行了对比性研究。研究表明,计算中湍流模型为标准k-ε模型,收敛精度取10-4,速度-压力耦合算法选用SIMPLE算法,进、出口边界条件选用速度进口、自由出流的边界条件在计算中可获得相对较好的计算结果,且计算容易收敛。

关键词：中开式输油泵流动数值计算湍流模型速度压力耦合算法

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氯乙酸灼伤中毒及其肌肉超微结构改变

中国职业医学 2006年第4期33卷 249-251页

作者：张春英田宝祥谭永祥高维昌杨雄蔺海龙张克川吉化集团公司总医院北华大学第二临床学院化研室吉林吉林132022

目的探索氯乙酸灼伤创面与时限关系及其肌肉的超微结构改变。方法实验观察60只大白鼠(分3组)不同性质灼(烫)伤创面变化,120只大白鼠(分6组)氯乙酸灼伤创面累及进程及其肌肉的超微结构;结合91例氯乙酸灼伤病例和现场调查资料进行研究分... 详细信息

目的探索氯乙酸灼伤创面与时限关系及其肌肉的超微结构改变。方法实验观察60只大白鼠(分3组)不同性质灼(烫)伤创面变化,120只大白鼠(分6组)氯乙酸灼伤创面累及进程及其肌肉的超微结构;结合91例氯乙酸灼伤病例和现场调查资料进行研究分析。结果相同灼(烫)伤深度,氯乙酸灼伤比烫伤或硫酸灼伤累及组织要深;随时间延长创面会加深且吸收中毒,并引起肌肉超微结构改变。91例氯乙酸灼伤病例有2例死亡,占2.2%,而且面积不大。1例截除趾末节。3例均为创面冲洗有延误、不彻底所致。结论氯乙酸灼伤有别于其他灼(烫)伤,呈进行性损害且吸收中毒,并致线粒体坏死。立即持续冲洗是减轻创面加深,减少或避免中毒的有效措施。

关键词：灼伤氯乙酸肌肉超微结构

Mechanically exfoliated MoS_(2) nanosheets decorated with SnS_(2) nanoparticles for high-stability gas sensors at room temperature

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Rare Metals 2021年第6期40卷 1536-1544页

作者： Jia-Bei Liu Jin-yong Hu Can Liu Yu-Ming tan xiang Peng yong Zhang School of Physics and Optoelectronics Xiangtan UniversityXiangtan 411105China Hunan Institute of Advanced Sensing and Information Technology Xiangtan UniversityXiangtan 411105China

Due to its unique physical,chemical and surface electronic properties,molybdenum disulfide(MoS_(2))nanosheets open up a new avenue for nitrogen dioxide(NO2)detection at room ***,the gas sensing properties of pure MoS_(2) nanosheets are inevitably degenerated by the adsorption of atmospheric oxygen,which results in weak stability for MoS_(2)-based gas *** surface defects and constructing heterojunctions may be effective strategies to improve the gas sensing properties of MoS_(2) *** this work,we design a novel nanocomposite based on MoS_(2) nanosheets decorated with tin disulfide(SnS_(2))nanoparticles(MoS_(2)/SnS_(2))via combining the mechanical exfoliation method with the facile hydrothermal *** experimental results indicate that,after surfaces decoration with SnS_(2) nanoparticles,the as-prepared gas sensor based on MoS_(2)/SnS_(2) nanocomposites exhibits reliable long-term stability with the maximum response value drift of less than 3%at room ***,the MoS_(2)/SnS_(2) sensor also possesses desirable gas sensing properties upon NO_(2) at room temperature,such as high sensitivity,rapid response/recovery speed(28 s/3 s,5×10^(-6) NO_(2)),satisfactory selectivity,favorable repeatability and *** improved gas sensing properties of MoS_(2)/SnS_(2) nanocomposites can be attributed to the unique electronic properties of MoS 2 nanosheets with the fewer layers structure and the competitive adsorption effect of SnS_(2) *** work elucidates that SnS_(2) nanoparticles serving as an effective antioxidative decoration can promote the stability of MoS_(2) nanosheets,providing a promising approach to achieve high-stability NO2 gas sensors at room temperature.

关键词： Mechanically exfoliated MoS2 nanosheets MoS_(2)/SnS_(2)nanocomposites NO2 sensing properties Room-temperature detection

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吸附法治理汞废气的机理研究

上海大学学报（自然科学版） 2002年第3期8卷 205-208页

作者：韩月香诸永泉谈定生朱永达上海大学材料科学与工程学院上海200072

该文对载银活性炭吸附汞蒸气的机理进行了探讨 ,通过电子探针和扫描电镜对载银活性炭及被汞“饱和”的载银活性炭进行微观结构分析 ,结果显示 ,银在活性炭中主要分布于活性炭的凸面处 ,汞只在有银存在的地方出现 ,表明普通活性炭不具备... 详细信息

该文对载银活性炭吸附汞蒸气的机理进行了探讨 ,通过电子探针和扫描电镜对载银活性炭及被汞“饱和”的载银活性炭进行微观结构分析 ,结果显示 ,银在活性炭中主要分布于活性炭的凸面处 ,汞只在有银存在的地方出现 ,表明普通活性炭不具备吸附汞的能力 ,载银活性炭吸附汞属于以银为核心的多分子物理吸附 ,工业上的“饱和”载银活性炭仍具有一定的吸附汞蒸气的能力 ,为交替式吸附床的结构设计提供了技术依据 .

关键词：吸附法治理汞废气载银活性炭

Analysis of radiation heat transfer and temperature distribu- tions of solar thermochemical reactor for syngas production

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Frontiers in Energy 2017年第4期11卷 480-492页

作者： Bachirou GUENE LOUGOU yong SHUAI xiang CHEN Yuan YUAN Heping tan Huang XING School of Energy Science and Engineering Harbin Institute of Technology Harbin 15001 China College of Metallurgy and Energy North China University of Science and Technology Tangshan 063009 China

This paper investigated radiation heat transfer and temperature distributions of solar thermochemical reactor for syngas production using the finite volume discrete ordinate method （fvDOM） and P1 approximation for radiation heat transfer. Different parameters including absorptivity, emissivity, reflection based radiation scatter- ing, and carrier gas flow inlet velocity that would greatly affect the reactor thermal performance were sufficiently investigated. The fvDOM approximation was used to obtain the radiation intensity distribution along the reactor. The drop in the temperature resulted from the radiation scattering was further investigated using the P1 approx- imation. The results indicated that the reactor temperature difference between the P1 approximation and the fvDOM radiation model was very close under different operating conditions. However, a big temperature difference which increased with an increase in the radiation emissivity due to the thermal non-equilibrium was observed in the radiation inlet region. It was found that the incident radiation flux distribution had a strong impact on the temperature distribution throughout the reactor. This paper revealed that the temperature drop caused by the boundary radiation heat loss should not be neglected for the thermal performance analysis of solar thermochemical reactor.

关键词： solar thermochemical reactor incident radia-tion flux temperature distribution radiation absorptivity,radiation emissivity thermal performance analysis

Estimation of Gibbs free energy difference in Pd-based bulk metallic glasses

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China Foundry 2008年第2期5卷 124-127页

作者： Cai Anhui Xiong xiang Liu yong tan JingYing Zhou yong An Weike State Key laboratory of Powder Metallurgy Central South University Changsha 410083 China Department of Mechanical and Electrical Engineering Hunan Institute of Science and Technology Yueyang 414000 China

A new thermodynamic expression for Gibbs free energy difference AG between the under-cooled liquid and the corresponding crystals of bulk metallic glasses was derived. The newly proposed expression always gives results in fairly good agreement with experimental values over entire temperature range between the fusion temperature Tm and the glass transition temperature Tg of Pd40Ni40P20, Pd40Cu30Ni10P20 and Pd43Cu27Ni10P20, which possess different heat capacities. However, the TS and KN expressions cannot always provide results in good agreement with the experimental values. In addition, the deviations between the experimental values and the AG calculated by the proposed expression at Tg are smaller than those given by other expressions for all the bulk metallic glasses studied.

关键词： thermodynamic Gibbs free energy difference bulk metallic glasses

Oxygen reduction reaction on single Pt nanoparticle

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Journal of Energy Chemistry 2020年第10期29卷 323-326页

作者： Zhi-Peng xiang Ai-Dong tan Zhi-yong Fu Jin-Hua Piao Zhen-Xing Liang Key Laboratory on Fuel Cell Technology of Guangdong Province School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510641GuangdongChina School of Food Science and Engineering South China University of TechnologyGuangzhou 510641GuangdongChina

Nanocollision electrochemistry is employed to evaluate the ORR’s activity of one single Pt nanoparticle,the effect of the size and ligand is *** size-normalized activity of the Pt nanoparticle of 4 nm is two times higher than that of 25 nm,confirming that the intrinsic activity does depend on the size of the *** is further found that the adsorbed ligand does yield effect on electrocatalysis,and the adsorption strength follows the order of PVP>CTAB>*** work is of significance to understand the nature of the ORR’s electrocatalysis at the level of an individual entity,which makes the structure-activity correlation in a more reliable way.

关键词： Ligand effect Nano-collision electrochemistry Oxygen reduction reaction Single Pt nanoparticle