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Effects of Diesel Concentration on the Thermal Conductivity,Specific Heat Capacity and Thermal Diffusivity of Diesel-Contaminated Soil

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Journal of Thermal Science 2024年第2期33卷 696-709页

作者： wu Yuhao wu yuefei LUO Gubai ZHANG Teng WANG Qing FAN Liwu SONG Xin YU Zitao Key Laboratory of Clean Energy and Carbon Neutrality of Zhejiang Province Zhejiang UniversityHangzhou310027China State Key Laboratory of Clean Energy Utilization Zhejiang UniversityHangzhou310027China Institute of Thermal Science and Power Systems School of Energy EngineeringZhejiang UniversityHangzhou310027China Center Environmental Protection Technology Company Limited Beijing100176China Institute of Soil Science Chinese Academy of SciencesNanjing210008China

High energy consumption is a serious issue associated with in situ thermal desorption(TD)remediation of sites contaminated by petroleum hydrocarbons(PHs).The knowledge on the thermophysical properties of contaminated soil can help predict accurately the transient temperature distribution in a remediation site,for the purpose of energy ***,such data are rarely reported for PH-contaminated *** this study,by taking diesel as a representative example for PHs,soil samples with constant dry bulk density but different diesel mass concentrations ranging from 0% to 20% were prepared,and the variations of their thermal conductivity,specific heat capacity and thermal diffusivity were measured and analyzed over a wide temperature range between 0℃ and 120℃.It was found that the effect of diesel concentration on the thermal conductivity of soil is negligible when it is below 1%.When diesel concentration is below 10%,the thermal conductivity of soil increases with raising the ***,when diesel concentration becomes above 10%,the change of the thermal conductivity of soil with temperature exhibits the opposite *** is mainly due to the competition between soil minerals and diesel,because the thermal conductivity of minerals increases with temperature,whereas the thermal conductivity of diesel decreases with *** analysis results showed that,compared with temperature,the diesel concentration has more significant effects on soil thermal *** of the diesel concentration,with the increase of temperature,the specific heat capacity of soil increases,while the thermal diffusivity of soil *** addition,the results of a control experiment exhibited that the relative differences of the thermal conductivity of the soil samples containing the same concentration of both diesel and a pure alkane are all below 10%,indicating that the results obtained with diesel in this study can be extended to the family of PHs.A theo

关键词： contaminated soil diesel concentration thermal conductivity specific heat capacity thermal diffusivity thermal desorption fractal model

Practical Encrypted Key Agreement Using Passwords

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wuhan University Journal of Natural Sciences 2006年第6期11卷 1625-1628页

作者： wu Shuhua ZHU yuefei Institute of Information Engineering Information Engineering University Zhengzhou 450002 Henan China

We presented a simple and efficient password-based encrypted key exchange protocol that allows a user to establish secure session keys with remote servers from client terminals in low resource environments. He does not need to carry smart card storing his private information but just needs to know his identity and password. For this purpose, the scheme was implemented over elliptic curves because of their well-known advantages with regard to processing and size constraints. Furthermore, the scheme is provably secure under the assumptions that the hash function closely behaves like a random oracle and that the elliptic curve computational Diffie-Hellman problem is difficult.

关键词： password encrypted key exchange Diffie-Hellman assumptions

West Lake in Mid-Autumn

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China & The World Cultural Exchange 2008年第10期74卷 40-41页

作者： wu yuefei

The city of Hangzhou in the southeast province of Zhejiang,known as "paradise in the earth",is full of fragrance of sweet osmanthus in the golden season of autumn. Walking on city streets,you will be immersed in flowe... 详细信息

关键词：中秋西湖人文景观旅游

A Dreamy Journey into the Potala Palace

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China & The World Cultural Exchange 2007年第7期73卷 38-39页

作者： wu yuefei

'I've been back to Lhasa; I've been back to the Tangula Mountains…' The popular song Back to Lhasa by rock singer Zheng Jun always lingers in my mind and I eventually decided to go to Lhasa, a city that I had dreamed... 详细信息

关键词：布达拉宫西藏摄影文化

HOMETOWN OF SAGE OF MEDICINE

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China & The World Cultural Exchange 2007年第10期73卷 6-7页

作者： wu yuefei

Qizhou, a historical town in the west border of central Hubei Province, is the hometown of great medicine scientist Li Shizhen, acclaimed as 'sage of medicine', who wrote the medical canon 'Compendium of Meteria Medica'.

关键词：中国传统医学中医学李时珍湖北

Adaptive Neural Tracking Control of MIMO Nonlinear Time-Varying Delay Systems With Actuator Faults

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Adaptive Neural Tracking Control of MIMO Nonlinear Time-Vary...

乡村振兴背景下农村社区组织化的内在张力及其消解

第43届中国控制会议

作者： yuefei wu Xiangwen Gao College of Automation and College of Artificial Intelligence Nanjing University of Posts and Telecommunications College of Mechanical Engineering Suzhou University of Science and Technology

This paper studies an adaptive neural control for nonlinear multiple-input multiple-output systems with unknown actuator failures and nonlinear dynamic *** novel decentralized adaptive neural control algorithms are developed by introducing a well defined smooth *** unknown time-varying delays and the unmodeled dynamics are dealt with by constructing appropriate Lyapunov-Krasovskii functions and introducing available dynamic *** main advantage of the proposed controllers is that they contain less parameter estimates that need to be updated online,which simplifies the computation of the control effort,and therefore extends its ***,simulation example is provided to illustrate the effectiveness and merits of the proposed control schemes.

关键词： Neural network multi-input-multi-output(MIMO) systems unknown actuator faults time delay

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西北农林科技大学学报（社会科学版） 2022年第5期22卷 52-61页

作者：吴越菲华东师范大学中国现代城市研究中心暨社会发展学院上海200241

在乡村振兴的背景下,真正需要再造的不仅是地域、行政或物理意义上的“农村社区”,而是具有高度自我组织能力、发展能力和强有力社会功能的“农村社区”。如何让农村社区能够真正运作起来?农村社区组织化在现实中是极为复杂的社会过程,... 详细信息

在乡村振兴的背景下,真正需要再造的不仅是地域、行政或物理意义上的“农村社区”,而是具有高度自我组织能力、发展能力和强有力社会功能的“农村社区”。如何让农村社区能够真正运作起来?农村社区组织化在现实中是极为复杂的社会过程,其中内含差异甚至是具有冲突性的组织化逻辑。“为社区工作”还是“与社区工作”,“建立组织庇护”还是“整合个体差异”,“他组织化”还是“自组织化”?为此,可以通过“投资型组织化”这一理念,在比较视野中反思性地讨论农村社区组织化的逻辑平衡和实践优化。

关键词：乡村振兴农村组织化内在张力投资型组织化

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迈向流动性治理:新地域空间的理论重构及其行动策略

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学术月刊 2019年第2期51卷 86-95页

作者：吴越菲华东师范大学中国现代城市研究中心/社会发展学院讲师上海200241

流动社会的来临不仅在根本上冲击着传统的地域假定和治理模式,更是将"地域性"和"流动性"之间的关系问题推向了全球治理变革的前沿地带。20世纪80年代以来,流动性与地域性在地域空间理论的变革中相互关联,并在地域实践中交织出了全新的... 详细信息

流动社会的来临不仅在根本上冲击着传统的地域假定和治理模式,更是将"地域性"和"流动性"之间的关系问题推向了全球治理变革的前沿地带。20世纪80年代以来,流动性与地域性在地域空间理论的变革中相互关联,并在地域实践中交织出了全新的治理模式-流动性治理。地域空间理论重新赋予了地域以全面的流动属性,并促动了地域治理的实践变革。流动性治理并非是对"地域"这一治理空间单元的根本性解构,而是形成了一套全新的地域治理范式。

关键词：流动性流动性治理新地域空间地域治理

农业转移人口的“选择性市民化”:一项类型学考察

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中国农业大学学报（社会科学版） 2016年第2期33卷 32-40页

作者：吴越菲华东师范大学社会学系

过去,人们较多地注意到城乡二元结构对农业转移人口市民化转型所造成的人为切割,但忽视了农业转移人口对自身市民化转型的自我切割和选择性。农业转移人口的市民化选择是透视城乡关系互动的最佳微观视角,行动者视角下的市民化实际是一种... 详细信息

过去,人们较多地注意到城乡二元结构对农业转移人口市民化转型所造成的人为切割,但忽视了农业转移人口对自身市民化转型的自我切割和选择性。农业转移人口的市民化选择是透视城乡关系互动的最佳微观视角,行动者视角下的市民化实际是一种"选择性市民化"。文章基于农业转移人口的市民化选择建构类型框架,整体考察并比较了四种市民化基本类型——内生型市民化、跃升型市民化、观望型市民化以及迫迁型市民化。由此展现了一副与城市化高歌和以往理论预期较不一致的市民化选择图景,并进一步分析了其可能带来的问题。

关键词：农业转移人口市民化选择性市民化类型