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Sustainability performance analysis of environment innovation systems using a two-stage network DEA model with shared resources

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Frontiers of Engineering Management 2022年第3期9卷 425-438页

作者： Jiangjiang YANG Jie WU Xingchen LI qingyuan zhu School of Management University of Science and Technology of ChinaHefei 230026China School of Accounting Nanjing Audit UniversityNanjing 211815China College of Economics and Management Research Center for Soft Energy ScienceNanjing University of Aeronautics and AstronauticsNanjing 211106China

The term environmental innovation system refers to an innovation network composed of enterprises,universities,and research institutions involved in the development and diffusion of environmental technology,with the participation of a *** environmental innovation system not only exerts important impact on the achievement of carbon neutrality but also affects social and economic *** on environmental innovation system performance constantly assume a singlestage independent system while ignoring its internal ***,such systems are composed of environmental innovation research and development(R&D)and environmental innovation conversion subsystems.A two-stage data envelopment analysis(DEA)model is developed in this study to analyze the efficiency of Chinese regional environmental innovation system by opening the"black box"and considering shared *** results indicated that China presents high overall environmental innovation efficiency although some regions need to *** with low efficiencies in both environmental innovation R&D(EIR)and environmental innovation conversion(EIC)subsystems should expand their investment in and strengthen the management of environmental innovation *** with low EIR efficiency should improve the absorption and transformation of environmental innovation *** with low EIC efficiency should increase investment in the commercialization of environmental innovation achievements and encourage green economy industries,such as new energy,art,tourism,and environmental protection.

关键词： data envelopment analysis environmental efficiency environmental innovation system shared resources two-stagestructure

Characterization of polycyclic aromatic hydrocarbons in PM2.s and PMlo in Tanggu District, Tianjin Binhai New Area, China

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Frontiers of Earth Science 2012年第3期6卷 324-330页

作者： Dan YANG Shihua QI Ningombam Linthoingambi DEVI Fang TIAN Ziping HUO qingyuan zhu Jing WANG State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesWuhan 430074China School of Environmental Studies China University of GeosciencesWuhan 430074China Tianrenhe Researching and Developing Center of Environmental Protection Techniques TangguTianjin 300450China Transport Planning and Environment Central Road Research InstituteNew Delhi 110025India

Particulate matter （PMlo and PM2.5） concentrations were monitored during the November 2008 by using the filter samples collected day and night from three sites in Tanggu District at Tianjin Binhai New Area, China. The mean concentrations of PM2.5 and PMlo rank in the order of urban （150 ug/m3 for PM2.5 and 197 ug/m3 for PM10）〉 industrial （32 ug/m3 for PM2.5 and 170 ug/m3 for PM10）〉 suburb area （27 ug/m3 for PM2.5 and 59 ug/m3 for PM10）. Sixteen polycyclic aromatic hydrocarbons （PAHs） were analyzed in PMlo and PM2.5 samples. Concentrations of total PAHs in PM2.5 and PMlo are in the range of 8.47- 113.94ng/m3 with average of 62.88ng/m3 and 21.07- 118.23 ng/m3 with average of 73.42 ng/m3, respectively. The light ring PAils （2-4 rings） are dominant in both PM2.5 and PMlo during sampling time compares with the heavy ring （5-6 rings） PAHs. The relationship of PAHs and PM2.5 （r = 0.689, p 〈 0.05） is stronger than PAHs and PMlo （r = 0.570, p 〈 0.05）, illustrating PAHs tend to adsorb in PM2.5. In addition, principal component analysis was applied to find the source of PAHs. Three principal factors representing three types of PAHs sources in Tanggu District are extracted, which were coke production, pyrogenic sources and vehicular source.

关键词： PM2.5 PMlo polycyclic aromatic hydrocarbons (PAHs) Tanggu District Tianjin Binhai New Area

Multi-region calcium imaging in freely behaving mice with ultra-compact head-mounted fluorescence microscopes

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National Science Review 2024年第1期11卷 161-173页

作者： Feng Xue Fei Li Ke-ming Zhang Lufeng Ding Yang Wang Xingtao Zhao Fang Xu Danke Zhang Mingzhai Sun Pak-Ming Lau qingyuan zhu Pengcheng Zhou Guo-Qiang Bi Department of Precision Machinery and Precision Instruments University of Science and Technology of China Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of China Interdisciplinary Center for Brain Information the Brain Cognition and Brain Disease Institute Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Faculty of Life and Health Sciences Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences School of Life Sciences University of Science and Technology of China Institute of Semiconductors Chinese Academy of Sciences Department of Modern Life Sciences and Biotecnology Xiongan Institute of Innovation Xiongan New Area Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions Suzhou Institute for Advanced Research University of Science and Technology of China Institute of Artiflcial Intelligence Hefei Comprehensive National Science Center

To investigate the circuit-level neural mechanisms of behavior, simultaneous imaging of neuronal activity in multiple cortical and subcortical regions is highly desired. Miniature head-mounted microscopes offer the capability of calcium imaging in freely behaving animals. However, implanting multiple microscopes on a mouse brain remains challenging due to space constraints and the cumbersome weight of the ***, we present TINIscope, a Tightly Integrated Neuronal Imaging microscope optimized for electronic and opto-mechanical design. With its compact and lightweight design of 0.43 g, TINIscope enables unprecedented simultaneous imaging of behavior-relevant activity in up to four brain regions in ***-of-concept experiments with TINIscope recorded over 1000 neurons in four hippocampal subregions and revealed concurrent activity patterns spanning across these regions. Moreover, we explored potential multi-modal experimental designs by integrating additional modules for optogenetics, electrical stimulation or local field potential recordings. Overall, TINIscope represents a timely and indispensable tool for studying the brain-wide interregional coordination that underlies unrestrained behaviors.

关键词： miniature microscope multiple sites calcium imaging multimodal integration hippocampus

Tgfbr2 inactivation facilitates cellular plasticity and development of Pten-null prostate cancer

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Journal of Molecular Cell Biology 2018年第4期10卷 316-330页

作者： Wei Zhao qingyuan zhu Peng Tan Adebusola Ajibade Teng Long Wenyong Long Qingtian Li Pinghua Liu Bo Ning Helen Y. Wang Rong-Fu Wang Center for Inflammation and Epigenetics Houston Methodist Research Institute Houston TX 77030 USA Zhongshan School of Medicine Sun Yat-sen University Guangzhou 510080 China Institute of Biosciences and Technology College of Medicine Texas A&M University Houston TX 77030 USA Xiangya School of Medicine Central South University Changsha 410008 China Department of Microbiology and Immunology Weill Cornell Medical College Cornell University New York NY 10065 USA

Mutations in tumors can create a state of increased cellular plasticity that promotes resistance to treatment. Thus, there is an urgent need to develop novel strategies for identifying key factors that regulate cellular plasticity in order to combat resistance to chemotherapy and radiation treatment. Here we report that prostate epithelial cell reprogramming could be exploited to identify key factors required for promoting prostate cancer tumorigenesis and cellular plasticity. Deletion of phosphatase and tensin homolog （Pten） and transforming growth factor-beta receptor type 2 （Tgfbr2） may increase prostate epithelial cell reprogramming efficiency in vitro and cause rapid tumor development and early mortality in vivo. Tgfbr2 ablation abolished TGF-β signaling but increased the bone morphogenetic protein （BMP） signaling pathway through the negative regulator Tmeff1. Furthermore, increased BMP signaling promotes expression of the tumor marker genes ID1, Oct4, Nanog, and Sox2; ID1/STAT3/NANOG expression was inversely correlated with patient survival. Thus, our findings provide information about the molecular mechanisms by which BMP signaling pathways render stemness capacity to prostate tumor cells.

关键词： prostate cancer TGF-β Pten cancer cell plasticity epigenetic reprogramming

肌内效贴配合理筋治疗肩部骨折术后上肢肿胀临床观察

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中国中医药现代远程教育 2025年第1期23卷 125-127页

作者：龙海云邓昌茂熊伟朱满华朱青元南昌市洪都中医院康复医学科江西南昌330013

目的探讨肌内效贴配合中医理筋手法缓解肩部骨折术后上肢肿胀的效果。方法将南昌市洪都中医院于2020年6月—2022年12月收治的78例肩部骨折术后上肢肿胀患者纳入研究,利用随机数字表法将其分为试验组(肌内效贴贴扎配合中医理筋手法治疗)... 详细信息

目的探讨肌内效贴配合中医理筋手法缓解肩部骨折术后上肢肿胀的效果。方法将南昌市洪都中医院于2020年6月—2022年12月收治的78例肩部骨折术后上肢肿胀患者纳入研究,利用随机数字表法将其分为试验组(肌内效贴贴扎配合中医理筋手法治疗)、对照组1(肌内效贴贴扎治疗)与对照组2(绝对卧床无任何治疗),各组均为26例。2周后,评估三组情况,包括临床疗效、视觉模拟量表(VAS)评分以及症状缓解效果。结果治疗后,试验组总有效率100.00%(26/26)高于对照组1的84.62%(22/26)和对照组2的61.54%(16/26)(P<0.05);试验组VAS评分较对照组1、对照组2低(P<0.05);试验组症状缓解效果为优的占比61.54%(16/26),高于对照组1的30.77%(8/26)和对照组2的7.69%(2/26)(P<0.05)。结论肌内效贴配合中医理筋手法能够有效改善肩部骨折术后上肢肿胀,减轻患者疼痛,促进相关症状的缓解,应用价值确切。

关键词：理筋肩部骨折术上肢肿胀肌内效贴疼痛

考虑轮胎几何与胎压因素的轮地相互作用力模型及其参数辨识

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机械工程学报 2020年第2期56卷 174-183页

作者：陈鼎侯亮祝青园卜祥建厦门大学机电工程系厦门361000

轮地相互作用力对于车辆设计、通过性评价、控制和仿真等方面具有极其重要的作用。传统模型以平板压力为力学假设前提,导致模型中各项参数难以同时响应轮胎几何和胎压因素对轮地相互作用力的影响。采用特定几何和胎压条件下的轮胎弹性... 详细信息

轮地相互作用力对于车辆设计、通过性评价、控制和仿真等方面具有极其重要的作用。传统模型以平板压力为力学假设前提,导致模型中各项参数难以同时响应轮胎几何和胎压因素对轮地相互作用力的影响。采用特定几何和胎压条件下的轮胎弹性形变量建立虚拟刚性轮形,结合轮地接触应力的分布状况,推导一种新的轮地相互力模型。该模型依据轮胎运动状态划分为轮胎准静态压载的垂向载荷模型以及轮胎稳态滑转的牵引力模型,模型中各项参数具有反映轮胎几何、胎压和土壤力学性质之间关联性的特点。通过土槽和原位地面试验对轮地相互作用力模型及其参数辨识结果进行验证,试验结果表明,不同几何尺寸和胎压下的轮胎垂向载荷与试验值之间最大误差不超过0.1 kN,模型参数辨识结果与试验值之间相对误差不超过12%,依据参数辨识结果计算的轮胎牵引力与试验值之间方均根误差为0.37。因而该模型可以有效地应用于考虑轮胎几何和胎压因素的轮地相互作用力学计算中。

关键词：轮胎几何尺寸轮胎胎压轮地相互作用力模型参数辨识土槽试验原位试验

RESEARCH ON THE EVAPORATION PROPERTY OF IMPREGNATED DISPENSER CATHODE BY AES

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Journal of Electronics(China) 1988年第2期5卷 125-132页

作者：张永康朱清元张贻英 Beijing Vacuum Electronics Research Institute

During the activation and ageing,the evaporation components and rates from 4.56:1.44:2impregnated dispenser cathode have been determined by the vapor-collect method based on the Augerelectron spectroscopy(AES).(1)The evaporation rate of a cathode after ageing differs from that of a justactivated cathode by a factor of 5 to *** evaporation energy of the former is 4.58 eV,and that of the latter is4.34 eV.(2)At operating temperature,the metallic barium in the evaporated materials is about 90%,and thebarium oxide is about 9.3%.(3)Blow 1000℃ the evaporation of Ca is not significant;over 1150℃ the Ca startsevaporating rapidly,particularly in the activation process,it may approach 3.5% at 1250℃.

关键词： Dispenser cathode Cathode evaporation AES

Steel Surface Automatic Detection and Segmentation Based on an Improved Faster R-CNN

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Steel Surface Automatic Detection and Segmentation Based on ...

第43届中国控制会议

作者： qingyuan zhu Tao Wei Shanbo Xu Yunlong Gao Guifang Shao Zhichao Li Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen University Department of Automation Xiamen University

Despite the application of various deep learning networks and machine learning algorithms for steel surface defect detection, achieving satisfactory accuracy remains a challenge. To address issues such as dynamic image quality,insignificant features, and varied defect sizes, this paper proposes an enhanced Faster R-CNN method termed IFRC. To mitigate the impact of uneven illumination, normalization techniques and vertical mean removal are employed. Moreover,to augment the significance of defect features, dense connection is integrated into the VGG-16 architecture. Furthermore, an anchor parameter adjustment method based on K-means clustering is introduced to detect long, thin defects *** enhance the segmentation of patches by eliminating holes and edge burrs, the Felzenswalb algorithm is utilized to refine the results. Experimental results conducted on the NEU-DET dataset demonstrate the superior performance of IFRC compared to Faster R-CNN. Moreover, IFRC achieves better segmentation results than DLRSD.

关键词： defect detection steel Faster R-CNN localization segmentation

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三线圈式无源电子标签质量参数检测技术研究

传感技术学报 2017年第11期30卷 1653-1659页

作者：盛庆元蔡晓霞朱丹绍兴职业技术学院浙江绍兴312000

电子商品防盗系统(EAS)中的无源电子标签工作原理可等效为LCR串联电路,其谐振频率FX和品质因素Q是无源电子标签关键质量参数。针对目前二线圈式检测方法检测此类标签参数存在的不足,设计一种差分式三线圈传感探头,分析了三线圈传感探头... 详细信息

电子商品防盗系统(EAS)中的无源电子标签工作原理可等效为LCR串联电路,其谐振频率FX和品质因素Q是无源电子标签关键质量参数。针对目前二线圈式检测方法检测此类标签参数存在的不足,设计一种差分式三线圈传感探头,分析了三线圈传感探头的工作原理,并采用Proteus软件对此传感探头的等效电路模型仿真,验证测量方法的可行性。同时设计了以MSP430F149处理器为核心的检测硬件电路,并基于二分法设计了快速寻找FX和Q值的跳频程序。以58 k Hz声磁无源电子硬标签为测试对象,试验表明:此检测技术的FX、Q值测量的绝对误差分别小于9.1 k Hz和1.0,其性能优于市售EAS频率检测仪(E-X5006AM)。

关键词：电气工程电子标签 Proteus 谐振频率品质因素