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Chinese Physics Letters 1992年第7期9卷 367-370页

作者： zou jin JIANG Shusheng DJHCockayne ZHANG Yunwu GUO Xiang PENG Zhengfu Electron Microscope Unit The University of SydneyNSW 2006Australia On leave from Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210008 Nanjing Electronic Devices Institute Nanjing 210008

The complex configurations and interactions of misfit dislocations in strained GaAs/InGaAs superlattices on GaAs(001)substrates have been studied by transmission electron microscopy under the two-beam or weak beam *** observed interactions between a pair of 60°misfit dislocations and an orthogonal 60°misfit dislocation are theoretically explained.

关键词： GaAs/InGaAs conditions beam

Rare-Earth Nd Inducing Record-High Thermoelectric Performance of(GeTe)_(85)(AgSbTe_(2))_(15)

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Energy Material Advances 2021年第1期2021卷 201-208页

作者： Wan Yu Lyu Min Hong Wei Di Liu Meng Li Qiang Sun Sheng Duo Xu jin zou Zhi-Gang Chen Centre for Future Materials University of Southern QueenslandSpringfieldQueensland 4300Australia School of Mechanical and Mining Engineering The University of QueenslandBrisbaneQueensland 4072Australia Centre for Microscopy and Microanalysis The University of QueenslandBrisbaneQueensland 4072Australia

As a promising midtemperature thermoelectric material with both higher thermoelectric performance and mechanical property,Tellurium Antimony Germanium Silver(TAGS-x),written as(GeTe)_(x)(AgSbTe_(2))_(1-x),especially(GeTe)_(0.85)(AgSbTe_(2))_(0.15)(TAGS-85),has attracted wide ***,we innovatively use Nd doping to synergistically decrease the carrier concentration to the optimal level leading to enhanced dimensionless figure of merit,*** density-functional theory calculation results indicate that Nd-doping reduced carrier concentration should be attributed to the enlargement of band *** optimized carrier concentration results in an ultrahigh power factor of~32μWcm^(-1)K^(-2)at 727 K in Ge_(0.74)Ag_(0.13)Sb_(0.11)Nd_(0.02)***,the lattice thermal conductivity of Ge_(0.74)Ag_(0.13)Sb_(0.11)Nd_(0.02)Te retained as low as~0.5 at 727 ***,a record-high zT of 1.65 at 727 K is observed in the Ge_(0.74)Ag_(0.13)Sb_(0.11)Nd_(0.02)*** study indicates rare-earth Nd doping is effective in boosting the thermoelectric performance of TAGS-85 and approached a record-high level via synergistic effect.

关键词： effect. doping synergistic

Face stability analysis for a longitudinally inclined tunnel in anisotropic cohesive soils

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Journal of Central South University 2019年第7期26卷 1780-1793页

作者： HUANG Qi zou jin-feng QIAN Ze-hang School of Civil Engineering Central South University

A stability analysis approach of tunnel face considering a longitudinally inclined tunnel angle and anisotropic purely cohesive soils based on a continuous velocity field (CVF) is investigated in this study. Based on the kinematic approach of limit analysis and the discretization technique, an improved three-dimensional CVF model for longitudinally inclined tunnels driven by pressurized shields is proposed. With the proposed model, the critical support pressure acted on tunnel face is determined by the work-balance equation. A serial of finite element numerical models are conducted to validate the proposed model. Finally, the effects of tunnel inclination angles, several dimensionless parameters as well as soil anisotropy on the critical support pressure are investigated. The numerical results show that the effects of the soil anisotropy and the tunnel inclination angle on tunnel faces should be considered in the actual design of tunneling engineering.

关键词： limit analysis tunnel face cohesive soils inclination angle anisotropy

Lanthanum-Promoted Nickel Catalyst for Vapor-Phase Methanol Carbonylation

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催化学报 2003年第4期24卷 239-240页

作者： LI Fengbo, zou jin, YUAN Guoqing (Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, China) Institute of Chemistry The Chinese Academy of Sciences 北京 100080

Methanol carbonylation is the main process for producing acetic acid. The current technology is based on precious rhodium and iridium catalysts dissolved in liquid phase . A heterogeneous catalyst based on a cheaper metal will have much theoretical and economic significance in improving the methanol carbonylation process, by solving many problems in homogeneous process. To achieve this purpose, a lanthanum-promoted nickel catalyst supported on polymer-derived carbon beads with high activity and selectivity was developed by a new strategy.

关键词： Ni-La催化剂催化反应镍镧催化剂甲醇气相碳基化反应

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人口老龄化与房价波动的地区差异

经济经纬 2017年第1期34卷 94-99页

作者：邹瑾四川大学经济学院四川成都610065

笔者基于区域异质性视角,利用面板协整理论和动态面板估计方法,讨论了我国不同地区和不同年龄阶段人口对房价波动的影响。基本结论为:老龄人群曾推动了房价上涨,东部地区青年人群支付能力与高房价间存在矛盾。人口老龄化会否导致房地产... 详细信息

笔者基于区域异质性视角,利用面板协整理论和动态面板估计方法,讨论了我国不同地区和不同年龄阶段人口对房价波动的影响。基本结论为:老龄人群曾推动了房价上涨,东部地区青年人群支付能力与高房价间存在矛盾。人口老龄化会否导致房地产市场的下行风险,关键在于刚需人群购买力的有效释放;同时,部分区域房价虚高,应及时予以重视,并采取综合性措施应对之。

关键词：人口结构房价面板协整区域差异

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基于二元水循环及系统熵理论的城市用水配置

水利水电科技进展 2019年第2期39卷 16-20页

作者：邹进昆明理工大学电力工程学院水电系云南昆明650500

基于二元水循环理论,在分析城市水资源配置系统结构基础上,构建了考虑水资源质、量均衡的城市用水优化配置模型,并运用多目标求解方法获得水资源分配的可行方案;对信息熵进行改进,构建了系统熵,并将其应用于可行方案的评价中。对昆明市... 详细信息

基于二元水循环理论,在分析城市水资源配置系统结构基础上,构建了考虑水资源质、量均衡的城市用水优化配置模型,并运用多目标求解方法获得水资源分配的可行方案;对信息熵进行改进,构建了系统熵,并将其应用于可行方案的评价中。对昆明市水资源的优化配置计算结果表明,当重视生态效益或者综合考虑生产、生活、环境及生态效益时,系统熵值较小,这将有利于水资源系统的长期健康运行;该方法不仅能对城市用水系统进行简洁有效的分析评价,亦能对用水系统的结构调整、系统发展提供参考意见。

关键词：水资源水环境优化配置二元水循环信息熵系统熵多目标规划

人口老龄化与房价波动——来自中国的经验证据

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财经科学 2014年第6期 115-124页

作者：邹瑾四川大学经济学院

老龄化是否会引起房价的波动、直接影响中国房地产市场的平稳运行,进而影响国家经济安全与社会的和谐稳定。本文采用面板协整检验证明了人口年龄结构是房价波动的长期影响因素,并基于系统广义矩估计等方法,讨论了人口老龄化对我国房价... 详细信息

老龄化是否会引起房价的波动、直接影响中国房地产市场的平稳运行,进而影响国家经济安全与社会的和谐稳定。本文采用面板协整检验证明了人口年龄结构是房价波动的长期影响因素,并基于系统广义矩估计等方法,讨论了人口老龄化对我国房价波动的影响、区域差异、形成原因及政策建议。研究表明:人口老龄化曾对房价上涨起到推动作用,但从中长期来看,此趋势可能发生逆转。在东部地区,人口变量对房价的弹性最小,且青年人口比例与房价成反向关系,表明东部地区刚需人群支付能力与高房价间存在矛盾;在中、西部地区,青年人口价格弹性也较老年人口价格弹性更小,部分地区房价或已脱离实体经济,应予以足够重视。

关键词：人口老龄化房价波动系统广义矩估计区域差异

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网络信息主题检索性能优化研究

情报科学 2006年第2期24卷 304-309页

作者：邹瑾武汉大学信息管理学院湖北武汉430072

总结了多种网络信息主题检索性能的优化措施,提出了网络信息主题检索性能优化的原则,指出了主题组织法性能优化过程中应当注意的一些问题。

关键词：网络信息检索主题检索性能优化

人口老龄化与货币政策效力——基于新兴经济体的实证分析

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当代财经 2017年第3期 3-13页

作者：邹瑾四川大学经济学院四川成都610065

基于6个新兴经济体的数据,在用时变系数向量自回归(TVP-VAR)方法得到货币政策效力的代表变量后,探讨了老龄化对货币政策效力的影响。研究发现,老龄化削弱了货币政策效力,并呈现不对称的影响:其对产出的影响大于对通胀的影响,对调控利率... 详细信息

基于6个新兴经济体的数据,在用时变系数向量自回归(TVP-VAR)方法得到货币政策效力的代表变量后,探讨了老龄化对货币政策效力的影响。研究发现,老龄化削弱了货币政策效力,并呈现不对称的影响:其对产出的影响大于对通胀的影响,对调控利率的影响大于对调控货币供应量的影响。此外,这一效应在去除中国样本后更加显著,这说明了结果的稳健性和中国样本的异质性。随着新兴经济体金融体制的逐渐完善,老龄化对其货币政策效力的影响会更加凸显。因此,不仅要重视采用多样化的货币政策操作方式,更需要与其他结构性改革与宏观政策相配合,审时度势以应对老龄化挑战。

关键词：人口结构货币政策时变系数向量自回归

Optimization of sodium hydroxide for securing high thermoelectric performance in polycrystalline Sn1−xSe via anisotropy and vacancy synergy

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InfoMat 2020年第6期2卷 1201-1215页

作者： Xiao-Lei Shi Wei-Di Liu Ang-Yin Wu Van TNguyen Han Gao Qiang Sun Raza Moshwan jin zou Zhi-Gang Chen Centre for Future Materials University of Southern QueenslandSpringfield CentralQueenslandAustralia Materials Engineering The University of QueenslandBrisbaneQueenslandAustralia Centre for Microscopy and Microanalysis The University of QueenslandBrisbaneAustralia

The morphology and composition are two key factors to determine the thermoelectric performance of aqueously synthesized tin selenide(SnSe)crystals;however,their controlling is still under *** this study,we report a high figure-of-merit(ZT)of1.5 at 823 K in p-type polycrystalline Sn1−xSe resulted from a synergy of morphology control and vacancy optimization,realized by carefully tuning the sodium hydroxide(NaOH)concentration during solvothermal *** a comprehensive investigation on various NaOH concentrations,it was found that an optimized NaOH amount of 10 mL with a concentration of 10 mol L^−1 can simultaneously achieve a large average crystal size and a high Sn vacancy concentration of2.5%.The large microplate-like crystals lead to a considerable anisotropy in the sintered pellets,and the high Sn vacancy level contributes to an optimum hole concentration to the level of2.3×10^19 cm^−3,and in turn a high power factor of7.4μW cm^−1 K^−2 at 823 K,measured along the direction perpendicular to the sintering *** addition,a low thermal conductivity of0.41 W m^−1 K^−1 is achieved by effective phonon scattering at localized crystal imperfections including lattice distortions,grain boundaries,and vacancy domains,as observed by detailed structural ***,a competitive compressive strength of52.1 MPa can be achieved along the direction of high thermoelectric performance,indicating a mechanically robust *** study provides a new avenue in achieving high thermoelectric performance in SnSe-based thermoelectric materials.

关键词： anisotropy sodium hydroxide thermoelectric tin selenide vacancy