检索结果-南通市图书馆

九江学院学报（自然科学版） 2010年第2期23卷 1-6页

作者：胡振鹏南昌大学管理科学与工程系江西南昌330029

文章明确了鄱阳湖生态经济区的规范范围,论述了建设鄱阳湖生态经济区的必要性,讨论了建设生态经济区的基本原则、发展定位、主体功能分区和战略任务。同时,为了实现建设目标,提出了有关政策措施的建议。

关键词：鄱阳湖生态经济低碳技术绿色发展

在线全文

学校读者我要写书评

暂无评论

农业面源污染管理中补偿机制设计

同济大学学报（自然科学版） 2012年第1期40卷 154-158页

作者：黄彬彬王先甲胡振鹏桂发亮武汉大学系统工程研究所湖北武汉430072 江西省水文水资源与水环境重点实验室江西南昌330099 武汉大学经济与管理学院湖北武汉430072 南昌大学管理科学与工程系江西南昌330023

首先建立了完全信息下政府的管理模型,然后利用激励理论,在不完全信息下设计1组契约来揭露农户真实的产出类型,建立了政府带审核手段的激励模型,给出了改进的补偿机制,并对模型的结果进行了讨论,得到了一个面源污染补偿的形成机制.新机... 详细信息

首先建立了完全信息下政府的管理模型,然后利用激励理论,在不完全信息下设计1组契约来揭露农户真实的产出类型,建立了政府带审核手段的激励模型,给出了改进的补偿机制,并对模型的结果进行了讨论,得到了一个面源污染补偿的形成机制.新机制通过农户的"自我申报"实现了环境管理者的管理目标.最后通过算例说明了机制的有效性,并解释了效率损失的原因.

关键词：面源污染机制设计个人理性激励相容补偿

2022年鄱阳湖特大干旱及防旱减灾对策建议

在线全文

学校读者我要写书评

暂无评论

中国防汛抗旱 2023年第2期33卷 1-6,39页

作者：胡振鹏南昌大学鄱阳湖环境与资源利用教育部重点实验室南昌330029

2022年长江流域发生了历史罕见干旱灾害,鄱阳湖流域旱情尤为严重。2022年7—9月鄱阳湖流域面雨量146 mm、蒸发量572 mm、鄱阳湖入湖平均流量仅1 454 m^(3)/s,分别是多年同期平均值的31%、134%和47%,鄱阳湖水位创历史最低水位纪录。由于... 详细信息

2022年长江流域发生了历史罕见干旱灾害,鄱阳湖流域旱情尤为严重。2022年7—9月鄱阳湖流域面雨量146 mm、蒸发量572 mm、鄱阳湖入湖平均流量仅1 454 m^(3)/s,分别是多年同期平均值的31%、134%和47%,鄱阳湖水位创历史最低水位纪录。由于病险水库得到除险加固、引提水工程更加完善及科学管理等因素,虽然旱情严重,但灾情却不是最严重。为了经济社会可持续发展和生态环境保护,建议将“抗旱救灾”策略转变为“防旱减灾”,针对鄱阳湖流域实际情况,提出了相应对策。

关键词：干旱高温防旱减灾湿地生态系统对策建议鄱阳湖

在线全文

学校读者我要写书评

暂无评论

人与自然顽强抗争的史诗——临川千金陂

江西水利科技 2019年第2期45卷 130-136页

作者：胡振鹏南昌大学江西南昌330029

千金陂是抚州历史上规模最大、运行时间最长、影响深远的具有防洪、灌溉、航运等多重效益的治河工程.一千多年的修毁兴衰反映了人与自然顽强抗争、奋力拼搏、勇往直前的民族精神.千金陂不仅是伟大的水利遗产,也是中华传统文化的宝贵财富.

关键词：水利工程临川千金陂水利遗产

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

在线全文

学校读者我要写书评

暂无评论

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

Investigation of mechanical and electrical characteristics of selfsensing pneumatic torsional actuators

在线全文

学校读者我要写书评

暂无评论

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

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

在线全文

学校读者我要写书评

暂无评论

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

在线全文

学校读者我要写书评

暂无评论

阜康白杨河矿区煤储层渗透率主控因素的研究

中国煤层气 2019年第2期16卷 24-26页

作者：胡振鹏新疆煤田地质局一五六煤田地质勘探队

煤层气的高效产出不仅需要一定的资源量,还需要有良好的产出通道。煤储层渗透率的大小是煤储层导流能力强弱的宏观表征,是煤储层孔裂隙发育特征的外在表现。通过对阜康白杨河矿区39、41、42主力煤层进行研究,分析煤储层渗透率主控因素,... 详细信息

煤层气的高效产出不仅需要一定的资源量,还需要有良好的产出通道。煤储层渗透率的大小是煤储层导流能力强弱的宏观表征,是煤储层孔裂隙发育特征的外在表现。通过对阜康白杨河矿区39、41、42主力煤层进行研究,分析煤储层渗透率主控因素,得出阜康白杨河矿区煤储层渗透率分布特征及原因;对该区后续煤层气开发具有重要的指导意义。

关键词：储层渗透率渗透率主控因素煤层气开发阜康

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

在线全文

学校读者我要写书评

暂无评论

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

在线全文

学校读者我要写书评

暂无评论

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