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The sustainability cycle of historic houses and cultural memory: Controversy between historic preservation and heritage conservation

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Frontiers of Architectural Research 2022年第6期11卷 1030-1046页

作者： Wenzhang Zhou Siyuan Song kan feng Law School Shandong UniversityQingdaoChina Zhejiang Greenton Architectural Design Co. Ltd.(GAD)HangzhouChina School of Marxism Studies Zhejiang University of Finance&EconomicsHangzhouChina

Historic preservation and heritage conservation are two mainstream concepts related to the sustainability and renewal of historic *** the aim of enhancing the sustainability of historic houses,this article criticizes the view of historic preservation that insists on preserving historic houses with their old appearances,which does not fully develop their *** contrast,the article provides support for the view of heritage conservation that aims to promote the sustainability of historic houses and related *** the second and third parts,this article examines the theoretical origin of historic preservation,which emphasizes and summarizes the one-way protection of cultural memory via historic *** the fourth part,the article turns to heritage conservation,highlights the sustainable cycle between historic houses and cultural memory,and underlines the advantages of this sustainable *** the fifth part,this article presents a sustainable approach to heritage conservation and related legal safeguards by taking the renewal of historic houses in China’s Bagua Village(or"Eight Diagrams Village")as an *** the last part,this paper summarizes the theoretical value,practical value and limitations of this *** findings can facilitate the UN’s sustainable development of social inclusion,economic growth,and environmental protection to promote the heritage legislation and policy of present and future generations.

关键词： Cultural memory Historic houses Sustainability cycle Heritage legislation and policy Eight diagrams village Historic preservation Heritage conservation

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The molecular basis of heat stress responses in plants

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Molecular Plant 2023年第10期16卷 1612-1634页

作者： Yi kan Xiao-rui Mu Jin Gao Hong-Xuan Lin Youshun Lin National Key Laboratory of Plant Molecular Genetics CAS Centre for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China Joint Center for Single Cell Biology School of Agriculture and BiologyShanghai Jiao Tong UniversityShanghai 200240China University of the Chinese Academy of Sciences Beijing 100049China Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou 510642China

Global warming impacts crop production and threatens food *** temperatures are sensed by different cell *** increases are classified as either mild warm temperatures or excessively hot temperatures,which are perceived by distinct signaling pathways in *** temperatures induce thermomorphogenesis,while high-temperature stress triggers heat acclimation and has destructive effects on plant growth and *** this review,we systematically summarize the heat-responsive genetic networks in Arabidopsis and crop plants based on recent *** addition,we highlight the strategies used to improve grain yield under heat stress from a source-sink *** also discuss the remaining issues regarding the characteristics of thermosensors and the urgency required to explore the basis of acclimation under multifactorial stress combination.

关键词： global warming thermosensing heat stress thermomorphogenesis heat stress responses heat acclimation

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Stability analysis of robotic longitudinal-torsional composite ultrasonic milling

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Chinese Journal of Aeronautics 2022年第8期35卷 249-264页

作者： Lianjun SUN Wenhe LIAO kan ZHENG Wei TIAN Jinshan LIU Jindan feng School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing 210094China College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016China China Academy of Space Technology Beijing 100094China

Currently,industrial robots are considered as an alternative towards traditional machine *** for the large-scale parts milling,robotic flexibility and low cost make it possess the ***,the milling chatter caused by its weak rigidity hampers robotic application and promotion severely in aviation *** ultrasonic milling(RUM)technology with one-dimensional axial vibration has been proven and approved on avoiding robotic *** on this,the research of project team demonstrates that longitudinal-torsional composite ultrasonic milling(CUM-LT)involving separation characteristic has a greater advantage than RUM in terms of chatter ***,the CUM-LT as a new means is applied to avoid processing vibration of robotic milling *** its influence mechanism on stability improvement of weak stiffness processing system is ***,the approaches to strengthen separation effect are provided ***,a new analysis method of robotic CUM-LT(RCUM-LT)stability is proposed on the basis of ultrasonic function *** simulation and experimental results indicate that compared with robotic RUM(RRUM),stability regions of separated RCUM-LT(SRCUM-LT)and unseparated RCUM-LT(URCUM-LT)are improved by 124.42%and39.20%,*** addition of torsional ultrasonic energy has a wonderful effect on the milling chatter suppression of low stiffness robots.

关键词： Chatter suppression Industrial robots Longitudinal-torsional composite Rotary ultrasonic milling Stability analysis

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Full-Scale Numerical Simulation of the Local Scour Under Combined Current and Wave Conditions Based on Field Data

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China Ocean Engineering 2023年第6期37卷 1032-1043页

作者： SUI Shu-huan ZHAO Xue-liang CHEN Xin-rui DENG Wen-ni SHEN kan-min School of Civil Engineering Southeast UniversityNanjing 211100China Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education Southeast UniversityNanjing 211100China PowerChina Huadong Engineering Corporation Limited Hangzhou 311122China

The monopile is the most common foundation to support offshore wind *** the marine environment,local scour due to combined currents and waves is a significant issue that must be considered in the design of wind turbine *** this paper,a full-scale numerical model was developed and validated based on field data from Rudong,*** scour development around monopiles was investigated,and the effects of waves and the Reynolds number Re were *** formulas for predicting the scour depth in the literature have been *** is found that waves can accelerate scour development even if the KC number is small(0.78

关键词： full-scale numerical simulation field data scale effect Reynolds number effects local scour

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Construction of an oesophageal cancer-specific ceRNA network based on miRNA, lncRNA, and mRNA expression data

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World Journal of Gastroenterology 2018年第1期24卷 23-34页

作者： Wen-Hua Xue Zhi-rui Fan Li-feng Li Jing-Li Lu Bing-Jun Ma Quan-Cheng kan Jie Zhao Department of Pharmacy the First Affiliated Hospital of Zhengzhou University Cancer Centre the First Affiliated Hospital of Zhengzhou University

AIM To explore the expression profiles of microRNAs(miRNAs), long non-coding RNAs(lncRNAs), and mRNAs in oesophageal squamous cell carcinoma(ESCC) in order to construct an oesophageal cancer-specific competing endogenous RNA(ceRNA) *** In this work, the expression data of miRNAs, lncRNAs, and mRNAs in ESCC were obtained. An oesophageal cancer-specific ceRNA network was then constructed and *** CeRNAs have the ability to reduce the targeting activityof miRNAs, leading to the de-repression of specific mRNAs with common miRNA response elements. CeRNA interactions have a critical effect in gene regulation and cancer *** This study suggests a novel perspective on potential oesophageal cancer mechanisms as well as novel pathways for modulating ceRNA networks for treating cancers.

关键词： Competing endogenous RNA MicroRNA Long non-coding RNA mRNA Oesophageal squamous cell carcinoma

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Rapid Synthesis of Piezoelectric ZnO-Nanostructures for Micro Power-Generators

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Journal of Materials Science & Technology 2013年第10期29卷 893-897页

作者： Nai-feng Hsu Tien-kan Chung Ming Chang Hong-Jun Chen Department of General Education Army Academy Department of Mechanical Engineering National Chiao Tung University Department of Mechanical Engineering Chung Yuan Christian University State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and Technology

In this paper, we report a rapid synthesis of piezoelectric ZnO-nanostructures and fabrication of the nanostructures- based power-generators demonstrating an energy conversion from an environmental mechanical/ultrasonic energy to an electrical energy. The ZnO nanostructures are grown on a silicon wafer by a modified chemical solution method （CSD, chemical-solution-deposition） with a two-step thermal-oxidation approach. The synthesis process can be completed within 1 h. By varying the mixture-ratio of Zn micro-particles in an oxalic acid solution with 0.75 mol/l concentration in the CSD process, the growth mechanism is well-controlled to synthesize three different types of ZnO-nanostructures （i.e., dandelion-like nanostructures, columnar nanostructures, and nanowires）. Furthermore, through oxidizing at different temperatures in the thermal-oxidation process, the featured geometry of the nanostructures （e.g., the length and diameter of a nanowire） is modified. The geometry, size, morphology, crystallization, and material phase of the modified nanostructures are characterized by scanning electron microscopy and X-ray diffraction. Finally, the nanostructures are used to fabricate several micro power-generators. Through the piezoelectric effect, a maximum current density output of 0.28 μA cm-2 generated by a power-generator under an ultrasonic wave is observed.

关键词： Piezoelectric ZnO nanostructures Chemical solution method Thermal-oxidation Power-generator

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LAMINAR DEVELOPING FLOW IN THE ENTRANCE REGION OF ROTATING CURVED PIPES

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Journal of Hydrodynamics 2006年第4期18卷 418-423页

作者： MA Jian-feng SHEN Xin-rong ZHANG Ming-kan ZHANG Ben-Zhao Department of Mechanics Zhejiang University Hangzhou 310027 China

Three-dimensional laminar flow in the entrance region of rotating curved pipes was investigated. The governing equations were written in an orthogonal curvilinear coordinate system and solved with a fully three-dimensional numerical method. The development of secondary flow, axial velocity, local and average friction factors for different cases of rotation were given and discussed in detail. The results show that rotation influences the flow structure and friction factor greatly and that the secondary flow is sink-type in the early stage of development and then turns to vortex structure. The average friction factor and the intensity of secondary flow have drastic decrease near the entrance. At some proper rotation, the average friction factor can be noticeably reduced.

关键词： developing flow secondary flow rotating curved pipe

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A STUDY ON THE FLOW IN HELICAL ELLIPTICAL PIPES WITH GALERKIN METHOD

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Journal of Hydrodynamics 2006年第1期18卷 70-76页

作者： MA Jian-feng SHEN Xin-rong ZHANG Ben-zhao ZHANG Ming-kan Department of Mechanics Zhejiang University Hangzhou 310027 China

The fully developed laminar flow in helical elliptical pipes is influenced by curvature, torsion and aspect ratio of cross-section. With the aid of the symbolic manipulation technique, the governing equations were solved by the Galerkin method, The procedures of implementing the Galerkin method for flows in curvilinear pipes were discussed. The effects of the aspect ratio and torsion on the flow structure, wall shear stress and flow ratio were examined in detail. The results show that the flow characteristic for aspect ratio larger than unit is quite different from those for the aspect ratio smaller than unit.

关键词： Galerkin method helical elliptical pipe secondary flow

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High Damping and Mechanical Properties of Hydrogen-bonded Polyethylene Materials with Variable Contents of Hydroxyls:Effect of Hydrogen Bonding Density

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Chinese Journal of Polymer Science 2017年第5期35卷 649-658页

作者： Lei kan Xiao Ouyang Shan Gao rui Li 马宁 Shi-hui Han 魏浩 Lian-he Liu College of Material Science and Chemical Engineering Harbin Engineering University

Hydrogen bonding is considered to have significant effect on the interaction between polymeric chains and on the viscoelasticity of the polymeric materials. In this paper, we attempt to discuss the relationship between hydrogen bonding density and damping behavior and mechanical properties of polyethylene-based polymeric materials. For this reason, a series of pendant chain hydrogen bonding polymers （PCHBP） with different hydrogen bonding density （HBD） were prepared by quantitatively changing the content of pendent hydroxyl groups on the main chain of polyethylene. It was found that PCItBP with low HBD showed similar properties to polyethylene, indicating that the property of the materials was dependent mainly on the structure of the main chain. However, PCHBP with high HBD exhibited two tandpeaks and a platform of loss modulus as well as a high storage modulus （about 400 MPa） at the second tand peak temperature, demonstrating that a polymeric material with high strength and damping properties was obtained. More importantly, the maximum of loss modulus showed a linear increase with the HBD, indicating that a higher HBD greatly improved the damping properties of the polymeric materials.

关键词： Hydroxyls Polyethylene Hydrogen bonding Polymer damping

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The functional evolution and system equilibrium of urban and rural territories

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Journal of Geographical Sciences 2022年第7期32卷 1203-1224页

作者： FAN Jie LI Sisi SUN Zhongrui GUO rui ZHOU kan CHEN Dong WU Jianxiong Key Laboratory of Regional Sustainable Development Modeling Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China Institute of Science and Development CASBeijing 100190China

The coordinated development of urban and rural territorial systems has long been a scientific issue of concern in geography and socioeconomic development in *** on Territorial Function Theory,this paper establishes a theoretical framework to support the coordinated development of urban and rural territorial systems,analyzes the trend of functional evolution,discusses the impact of efficient allocation and orderly element flow on system equivalence development,and puts forward approaches and policy suggestions for equilibrium development in the *** main conclusions are as follows:(1)The evolution of urban and rural territorial functions has experienced four stages:rural to rural,rural to urban transition,rural to urban,and urban to *** this process,territorial functions have been developed to be hierarchical and advanced.(2)Functional evolution enables urban and rural comparative advantages to be transformed from value difference to value *** the flow intensity and reconstructing the flow space have become the necessary conditions for the coordination of development.(3)Land is the most important resource in China,and land system reform is the key to achieving equivalence development of urban and rural territorial systems,thereby determining the future equilibrium development of the two systems.

关键词： urban territorial function rural territorial function urban territorial system rural territorial system system equilibrium urban and rural equivalence development land system reform

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