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Asset Smoothing and Consumption Smoothing:Disaster-coping Strategies in Noncontiguous and Contiguous DestituteAreas

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China & World Economy 2023年第2期31卷 223-250页

作者： Li Zhou Jie Sun wuyang hu Yu Zhang College of Economics and Management Nanjing Agricultural UniversityChina College of Public Administration Nanjing Agricultural UniversityChina College of Food Agriculturaland Environmental Sciencesthe Ohio State UniversityUS School of Insurance and Economics University of International Business and EconomicsChina

Do households sell assets in order to smooth consumption?The empirical evidence is *** household-and village-level data in the context of China's poverty alleviation policy,we analyze the relationship between climate shocks and household coping behaviors from the perspective of whether coping strategies to deal with weather shocks are sensitive to the contiguity of destitute *** results indicate that,unlike households living in noncontiguous destitute areas,households struck by weather shocks in contiguous destitute areas tended not to reduce or liquidate *** overcome weather shocks,households in contiguous destitute areas instead reduced household consumption,such as food consumption and increased nonfarm working *** findings point to the possibility that the implicit assumption of consumption smoothing coupled with a failure to incorporate explicitly the factor of contiguous regions has led to seemingly divergent findings in the literature regarding consumption smoothing.

关键词： asset dynamics coping methods poverty alleviation weather shocks

R-matrix for the 8-Dimensional Spin Representation of Uq(so7)

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Acta Mathematica Sinica,English Series 2024年第2期40卷 485-497页

作者： Hong Mei hu Nai Hong hu School of Mathematical Sciences Suzhou University of Science and TechnologySuzhou 215009P.R.China School of Mathematical Sciences MOE Key Laboratory of Mathematics and Engineering Applications&Shanghai Key Laboratory of PMMPEast China Normal UniversityShanghai 200241P.R.China

The purpose of the paper is to describe the solution to the quantum Yang-Baxter equation associated with the 8-dimensional spin representation Tsp of Uq(so7).The self-duality of Tsp and the symmetry of the corresponding braiding matrix are ***,the minimal polynomial of the braiding R-matrix of Tsp is presented explicitly in an ingenious method by taking advantage of nice features of the spin representation Tsp.

关键词： Braiding R-matrix spin module minimal polynomial

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网络效应对家庭分布式光伏发电行为的影响

中国人口·资源与环境 2022年第3期32卷 28-37页

作者：梅应丹邱纪翔许杏柏胡武阳中国石油大学(北京)经济管理学院北京102249 厦门大学王亚南经济研究院福建厦门361005 厦门大学经济学院福建厦门361005 美国俄亥俄州立大学美国俄亥俄州哥伦布43210

家庭分布式光伏发电的发展对中国实现能源转型以及2030年碳达峰与2060年碳中和“双碳”目标具有重要意义,中国应该加快其发展,以便充分利用丰富的太阳能资源。文章研究居民之间的网络效应对于其安装家庭分布式光伏发电设备意愿的影响。... 详细信息

家庭分布式光伏发电的发展对中国实现能源转型以及2030年碳达峰与2060年碳中和“双碳”目标具有重要意义,中国应该加快其发展,以便充分利用丰富的太阳能资源。文章研究居民之间的网络效应对于其安装家庭分布式光伏发电设备意愿的影响。基于2019年在北京市昌平区的调查问卷,文章运用空间Probit模型和基于马尔可夫链蒙特卡洛的贝叶斯估计方法研究网络效应对家庭分布式光伏发电行为的影响。该研究表明:①已安装光伏发电项目居民的存在将会显著降低周围尚未安装光伏发电设备居民的参与概率,这说明居民的光伏设备使用体验并不理想,我们在文中探究了其原因;②居民对补贴政策的了解程度将会显著提高其参与光伏发电行为的概率;③居民搭便车心理将会显著降低其参与光伏发电行为的概率。为此,文章给出三点政策建议:①光伏厂商和政府部门应该加大宣传力度,增加民众对光伏发电项目的认知,利用网络效应推动家庭分布式光伏项目的发展;②政府部门应当贯彻落实现有补贴政策,修正补贴政策在居民心中的不良影响,尤其是提高已安装家庭对光伏发电项目的认同感,以此借助网络效应增强未安装用户对光伏项目的信心;③政府部门应该加强环保方面的基层教育工作,提高民众的环保意识与环保参与度,减少居民搭便车心理造成的影响。文章的贡献在于首次分析了网络效应对于中国家庭安装户用光伏行为影响;同时,基于入户调研数据的分析结果更能够从微观反映居民安装行为之间的相互作用。该研究可为户用分布式光伏的“整县推进”工作提供参考和支持。

关键词：网络效应家庭分布式光伏发电空间Probit模型

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Mapping out the reaction network of humin formation at the initial stage of fructose dehydration in water

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Green Energy & Environment 2024年第6期9卷 1016-1026页

作者： Xing Fu Yexin hu Ping hu hui Li Shuguang Xu Liangfang Zhu Changwei hu Key Laboratory of Green Chemistry and Technology Ministry of EducationCollege of ChemistrySichuan UniversityChengduSichuan610064China State Key Laboratory of Southwestern Chinese Medicine Resources Innovative Institute of Chinese Medicine and PharmacyChengdu University of Traditional Chinese MedicineChengduSichuan611137China

The formation of humins hampers the large-scale production of 5-hydroxymethylfurfural(HMF)in ***,a detailed reaction network of humin formation at the initial stage of fructose-to-HMF dehydration in water is delineated by combined experimental,spectroscopic,and theoretical *** bimolecular reaction pathways to build up soluble humins are *** is,the intermolecular etherification of β-furanose at room temperature initiates the C12 path,whereas the C-C cleavage of a-furanose at 130-150℃ leads to C11 path,and that of open-chain fructose at 180℃ to C11' *** successive intramolecular dehydrations and condensations of the as-formed bimolecular intermediates lead to three types of soluble *** show that the C12 path could be restrained by using HCl or AlCl_(3) catalyst,and both the C12 and C110 paths could be effectively inhibited by adding THF as a co-solvent or accelerating heating rate via microwave heating.

关键词： Carbohydrates 5-hydroxymethylfurfural Reaction network Soluble humins Tautomer

Investigation of mechanical and electrical characteristics of selfsensing pneumatic torsional actuators

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Science China(Technological Sciences) 2024年第1期67卷 130-142页

作者： XIAO Wei hu DeAn hu GuoLiang XIAO Yihua Key Laboratory of Conveyance and Equipment Ministry of EducationEast China Jiaotong UniversityNanchang 330013China Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment Ministry of EducationHunan UniversityChangsha 410082China

Soft pneumatic actuators are one of the most promising actuation for soft robots,and great achievements have been *** it remains challenging to endow sensing capabilities to pneumatic actuators,especially for the sensing ability originating directly from the actuator ***,a self-sensing pneumatic torsional actuator(SPTA)is designed based on the electromagnetic induction effect and magnetically responsive *** SPTA can generate feedback voltage and current with the deformation,in which the sensing function comes from its inherent *** investigate the mechanical and electrical characteristics,an experimental platform and a finite element model are established,*** find that the torsion angle and output torque increase in nonlinear with the actuating *** maximum torsion angle is 66.35°,which is 84.34%of that for the actuator fabricated by pure *** maximum output torque(24.9 N mm)improves by 23.19%compared with the actuator made by pure *** regards the electrical characteristics,the maximum feedback voltage and current are 2.90μV and 29.50 nA when the SPTA is actuated by a pressure of−40 *** also demonstrate that the relationship between the torsion angle and the magnetic flux change is approximately ***,the number of turns of wires,magnetic powders contents,and magnetic direction on the feedback voltage and current are *** show that the feedback voltage and current can be enhanced by increasing the number of turns and magnetic powders *** envision that the SPTA would be promising for soft robots to realize their accuracy control and intelligentization.

关键词： pneumatic torsional actuators self-sensing feedback voltage finite element modeling soft robots

生猪养殖户病死猪处理影响因素及其行为选择——基于仿真实验的方法

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南京农业大学学报（社会科学版） 2015年第2期15卷 90-101,127页

作者：吴林海许国艳 hu wuyang 江南大学江苏省食品安全研究基地/商学院江苏无锡214122 肯塔基大学农业经济学院美国莱克星顿市405060276

本文以江苏省阜宁县654位生猪养殖户为案例,借鉴行为概率的定义与内涵,选取影响生猪养殖户病死猪处理的影响因素,采用仿真实验的方法,模拟影响因素在生猪养殖户病死猪处理行为选择的过程发挥的作用。研究结果显示,养殖年限、养殖规模、... 详细信息

本文以江苏省阜宁县654位生猪养殖户为案例,借鉴行为概率的定义与内涵,选取影响生猪养殖户病死猪处理的影响因素,采用仿真实验的方法,模拟影响因素在生猪养殖户病死猪处理行为选择的过程发挥的作用。研究结果显示,养殖年限、养殖规模、政府政策与相关法律法规认知、生猪疫情与防疫认知等因素的变化均会导致生猪养殖户病死猪处理行为选择的改变,并且某些因素的改变与养殖户病死猪处理行为选择之间并非简单的线性关系。本文的研究意义,就在于根据仿真实验的分析结果为政府从源头上治理病死猪流入猪肉市场的乱象提供了决策参考。

关键词：病死猪处理行为期望收益行为概率模型计算仿真实验

Effect of CO_(2) Opposing Multiple Jets on Thermoacoustic Instability and NO_(x) Emissions in a Lean-Premixed Model Combustor

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Journal of Thermal Science 2024年第1期33卷 207-221页

作者： ZHOU Hao hu Liubin Institute for Thermal Power Engineering State Key Laboratory of Clean Energy UtilizationZhejiang UniversityHangzhou 310027China

This paper experimentally studied the effect of CO_(2) opposing multiple jets on the thermoacoustic instability and NO_(x) emissions in a lean-premixed model *** feasibility was verified from three variables:the CO_(2) jet flow rate,hole numbers,and hole diameters of the *** indicate that the control effect of thermoacoustic instability and NO_x emissions show a reverse trend with the increase of open area ratio on the whole,and the optimal jet flow rate range is 1-4 L/min with CO_(2) opposing multiple *** this flow rate range,the amplitude and frequency of the dynamic pressure and heat release signals CH~* basically decrease as the CO_(2) flow rate increases,which avoids high-frequency and high-amplitude thermoacoustic *** amplitude-damped ratio of dynamic pressure and CH*can reach as high as 98.75% and 93.64% with an optimal open area ratio of 3.72%.NO_(x) emissions also decrease as the jet flow rate increases,and the maximum suppression ratio can reach 68.14%.Besides,the flame shape changes from a steep inverted "V" to a more flat "M",and the flame length will become shorter with CO_(2) opposing multiple *** research achieved the synchronous control of thermoacoustic instability and NO_(x) emissions,which could be a design reference for constructing a safer and cleaner combustor.

关键词： thermoacoustic instability lean-premixed model combustor CO_(2)opposing multiple jets open area ratio NO_(x)emissions

Multi-Axis Attention With Convolution Parallel Block for Organoid Segmentation

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1295-1297页

作者： Pengwei hu Xun Deng Feng Tan Lun hu Xinjiang Technical Institute of Physics and Chemistry Chinese Academy of SciencesUrumqi 830011 University of Chinese Academy of Sciences Beijing 100049 Xinjiang Laboratory of Minority Speech and Language Information Processing Urumqi 830011China Merck KGaA Darmstadt 64293Germany

Dear Editor,This letter presents an organoid segmentation model based on multi-axis attention with convolution parallel *** adeptly captures dynamic dependencies within bright-field microscopy images,improving global ... 详细信息

关键词： letter convolution organo

A vertical track nonlinear energy sink

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Applied Mathematics and Mechanics(English Edition) 2024年第6期45卷 931-946页

作者： Meng LI hu DING Shanghai Key Laboratory of Mechanics in Energy Engineering School of Mechanics and Engineering ScienceShanghai Frontier Science Center of MechanoinformaticsShanghai UniversityShanghai 200444China

Eliminating the effects of gravity and designing nonlinear energy sinks(NESs)that suppress vibration in the vertical direction is a challenging task with numerous damping *** this paper,the dynamic design of a vertical track nonlinear energy sink(VTNES)with zero linear stiffness in the vertical direction is proposed and realized for the first *** motion differential equations of the VTNES coupled with a linear oscillator(LO)are *** the strong nonlinearity considered of the VTNES,the steady-state response of the system is analyzed with the harmonic balance method(HBM),and the accuracy of the HBM is verified *** this basis,the VTNES prototype is manufactured,and its nonlinear stiffness is *** damping effect and dynamic characteristics of the VTNES are studied theoretically and *** results show that the VTNES has better damping effects when strong modulation responses(SMRs)***,even for small-amplitude vibration,the VTNES also has a good vibration suppression *** sum up,in order to suppress the vertical vibration,an NES is designed and developed,which can suppress the vertical vibration within certain ranges of the resonance frequency and the vibration intensity.

关键词： track nonlinear energy sink(TNES) vertical direction gravity nonlinear stiffness harmonic balance method(HBM) vibration control