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Construction and performance test of charged particle detector array for MATE

Nuclear Science and Techniques 2024年第8期35卷 92-100页

作者： Xiao‑Bin Li Long‑Hui Ru Zhi‑Chao Zhang bing‑Feng Lv Ning‑Tao Zhang Jin‑Long Zhang Chen‑Gui Lu bing‑shui gao Jun‑bing Ma Fu‑Shuai Shi Satoru Terashima Xiao‑Dong Xu Zhen Bai Shi‑Wei Xu Yan‑Yun Yang Hooi‑Jin Ong Xiao‑Dong Tang Institute of Modern Physics(IMP) Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Research Center for Nuclear Physics Osaka UniversityIbarakiOsaka 567‑0047Japan RIKEN Nishina Center WakoSaitama 351‑0198Japan Joint Department for Nuclear Physics Lanzhou University and Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China

A charged particle array named MATE-PA,which serves as an auxiliary detector system for a Multi-purpose Active-target Time projection chamber used in nuclear astrophysical and exotic beam Experiments(MATE),was *** array comprised of 20 single-sided strip-silicon detectors covering approximately 10%of the solid *** detectors facilitated the detection of reaction-induced charged particles that penetrate the active volume of the *** performance of MATE-PA has been experimentally studied using an alpha source and a 36-MeV 14 N beam injected into the MATE chamber on the radioactive ion beam line in Lanzhou(RIBLL).The chamber was filled with a gas mixture of 95%4 He and 5%CO_(2) at a pressure of 500 *** results indicated good separation of light-charged particles using the forward double-layer silicon detectors of *** energy resolution of the Si detectors was deduced to be approximately 1%(σ)for an energy loss of approximately 10 MeV caused by theα*** inclusion of MATE-PA improves particle identification and increases the dynamic range of the kinetic energy of charged particles,particularly that of theαparticles,up to approximately 15 MeV.

关键词： Silicon detector array Active target Time projection chamber

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Development of a low-background neutron detector array

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Nuclear Science and Techniques 2022年第4期33卷 10-18页

作者： Yu-Tian Li Wei-Ping Lin bing-shui gao Han Chen Hao Huang Yu Huang Tao-Yu Jiao Kuo-Ang Li Xiao-Dong Tang Xin-Yu Wang Xiao Fang Han-Xiong Huang Jie Ren Long-Hui Ru Xi-Chao Ruan Ning-Tao Zhang Zhi-Chao Zhang CAS Key Laboratory of High Precision Nuclear Spectroscopy Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China Joint Department for Nuclear Physics Lanzhou University and Institute of Modern PhysicsChinese Academy of SciencesLanzhou 730000China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China China Institute of Atomic Energy Beijing 102413China

A low-background neutron detector array was developed to measure the cross section of the ^(13)C(a,n)^(16)O reaction,which is the neutron source for the s-process in AGB stars,in the Gamow window(E_(c.m.)=190±40 keV)at the China Jinping Underground Laboratory(CJPL).The detector array consists of 24^(3)He proportional counters embedded in a polyethylene *** to the deep underground location and a borated polyethylene shield around the detector array,a low background of 4.5(2)/h was *** ^(51)V(p,n)^(51)Cr reaction was used to determine the neutron detection efficiency of the array for neutrons with energies E_(n)<1 ***4 simulations are shown to effectively reproduce the experimental *** were used to extrapolate the detection efficiency to higher energies for neutrons emitted in the ^(13)C(α,n)^(16)O *** theoretical angular distributions of the ^(13)C(α,n)^(16)O reaction were shown to be important in the estimation of the uncertainties of the detection efficiency.

关键词： Underground laboratory Neutron detector Low background ^(3)He Counter

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Inter‑Skeleton Conductive Routes Tuning Multifunctional Conductive Foam for Electromagnetic Interference Shielding,Sensing and Thermal Management

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Nano-Micro Letters 2025年第3期17卷 19-36页

作者： Xufeng Li Chunyan Chen Zhenyang Li Peng Yi Haihan Zou gao Deng Ming Fang Junzhe He Xin Sun Ronghai Yu Jianglan shui Caofeng Pan Xiaofang Liu School of Materials Science and Engineering Beihang UniversityBeijing 100191People’s Republic of China Institute of Atomic Manufacturing Beihang UniversityBeijing 100191People’s Republic of China Tianmushan Laboratory Xixi Octagon CityYuhang DistrictHangzhou 310023People’s Republic of China Science and Technology On Electromagnetic Scattering Laboratory Beijing Institute of Environmental FeaturesBeijing 100854People’s Republic of China

Conductive polymer foam(CPF)with excellent compressibility and variable resistance has promising applications in electromagnetic interference(EMI)shielding and other integrated functions for wearable ***,its insufficient change amplitude of resistance with compressive strain generally leads to a degradation of shielding performance during ***,an innovative loading strategy of conductive materials on polymer foam is proposed to significantly increase the contact probability and contact area of conductive components under *** inter-skeleton conductive films are constructed by loading alginate-decorated magnetic liquid metal on the polymethacrylate films hanged between the foam skeleton(denoted as AMLM-PM foam).Traditional point contact between conductive skeletons under compression is upgraded to planar contact between conductive ***,the resistance change of AMLM-PM reaches four orders of magnitude under ***,the inter-skeleton conductive films can improve the mechanical strength of foam,prevent the leakage of liquid metal and increase the scattering area of EM ***-PM foam has strain-adaptive EMI shielding performance and shows compression-enhanced shielding effectiveness,solving the problem of traditional CPFs upon *** upgrade of resistance response also enables foam to achieve sensitive pressure sensing over a wide pressure range and compression-regulated Joule heating function.

关键词： Inter-skeleton conductive films Conductive polymer foam Liquid metal Electromagnetic interference shielding

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Development of the inner ear and regeneration of hair cells after hearing impairment

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Fundamental Research 2025年第1期5卷 203-214页

作者： bing, Xin Liu, Chengcheng Cao, Xue Li, Chengzhilin gao, Xiaochen Zhu, Fangyuan Wu, Xinhao Guo, Na Hu, Houyang Xia, Ming Zhao, Miaoqing Department of Otolaryngology Shandong Provincial Hospital Shandong University Jinan 250021 China Department of Central Laboratory Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan 250021 China Medical Science and Technology Innovation Center Shandong First Medical University & Shandong Academy of Medical Sciences Jinan 271000 China Department of Otolaryngology Shandong Provincial Hospital Affiliated to Shandong First Medical University Jinan 250021 China NHC Key Laboratory of Otorhinolaryngology Jinan 250021 China Department of Pathology Shandong Cancer Hospital and Institute Shandong First Medical University and Shandong Academy of Medical Sciences Jinan 250117 China

Hearing loss, as a sensory disorder, is the most common occurrence among humans, which has received increasing attention from society. It is mainly caused by the damage of inner ear hair cells (HCs) or the degeneration of spiral ganglion neurons. In mammals, cochlear HCs cannot regenerate naturally after injury, leading to irreversible hearing loss. Therefore, HCs are essential for hearing protection. In recent years, the protection of drug-related ototoxicity, inner ear stem cells, gene therapy, new materials, and signal regulation have become important ways to develop regeneration strategies of HCs. An in-depth study of the causes of the occurrence and development of hearing impairment and the regeneration of hearing loss for effective prevention, discovery, and treatment of deafness has great significance. This review aimed to analyze the development of the inner ear and summarize the related factors leading to HCs injury and the research progress of regeneration after injury. © 2023

关键词： Development Hearing impairment Hearing protection Inner ear hair cells Regeneration

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Ribosome profiling and single-cell RNA sequencing identify the unfolded protein response as a key regulator of pigeon lactation

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Zoological Research 2025年第01期 54-74页

作者： Jing Liu San-Feng Liu Hui-Rong Mao Hong-Xia Jiang shui-bing Liu Xiao-Fei Xu Jin-Tao Wu Xun Liu Wen-Tao Zhang Xiao-Long Hu Biao Chen College of Animal Science and Technology Jiangxi Agricultural University Poultry Institute Jiangxi Agricultural University Zhongshan Shiqi Pigeon Breeding Limited Company National Key Laboratory for Swine Genetic Improvement and Germplasm Innovation Ministry of Science and Technology of ChinaJiangxi Agricultural University

Pigeons and certain other avian species produce a milklike secretion in their crop sacs to nourish offspring, yet the detailed processes involved are not fully elucidated. This study investigated the crop sacs of 225-day-old unpaired non-lactating male pigeons(MN) and males initiating lactation on the first day after incubation(ML). Using RNA sequencing,ribosomeprofiling,andsingle-cell transcriptome sequencing(scRNA-seq), we identified a significant up-regulation of genes associated with ribosome assembly and protein synthesis in ML compared to MN. Results from scRNA-seq analysis identified 12distinct cell types and 22 clusters, with secretory epithelial cells(SECs) exhibiting marked expression of plasma cell markers, including IGLL1 and MZB1. RNA fluorescence in situ hybridization(RNA FISH) and IgY quantification confirmed the critical role of SECs in producing endogenous IgY during lactation. We propose that fibroblast-derived BAFF signals activate SECs, mimicking B cell transformation and enhancing protein production through the unfolded protein response(UPR). These findings shed light on the cellular dynamics of pigeon milk production and contribute to a broader understanding of avian biology.

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Laparoscopic microwave ablation for giant cavernous hemangioma coexistent with diffuse hepatic hemangiomatosis:Two case reports

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World Journal of Gastrointestinal Surgery 2025年第3期17卷 398-405页

作者： Fei Xu Jian Kong Shu-Ying Dong Li Xu Shao-Hong Wang Wen-bing Sun Jun gao Department of Hepatobiliary Surgery Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100043China

BACKGROUND Hepatic hemangioma represents the most common benign primary hepatic *** most such tumors are small and asymptomatic,giant cavernous hemangioma(GCH)is frequently symptomatic,and needs ***-over,diffuse hepatic hemangiomatosis(DHH)is not rare in the liver parenchyma adjacent to a *** management strategy for hepatic hemangiomas can differ depending on the presence of associated hemangiomatosis and the amount and distribution of the residual hepatic *** SUMMARY Herein,we report two patients with GCH coexistent with DHH successfully treated by laparoscopic microwave *** two GCHs were ablated com-pletely and the ablated zone atrophied obviously in imaging follow-ups after ***,there was a trend toward gradual reduction and dimini-shment of *** Thermal ablation treatment might be an effective and less invasive treatment for GCH coexistent with DHH around the hemangioma.

关键词： Giant cavernous hemangioma Diffuse hepatic hemangiomatosis Manage-ment Microwave Thermal ablation Case report

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基于STIRPAT模型的广西碳达峰路径

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环境科学 2025年第2期46卷 682-695页

作者：黄威翔高川作吴波陈坦杨婷张冰中央民族大学生命与环境科学学院中国科学技术大学环境科学与光电技术学院中央民族大学北京市食品环境与健康工程技术研究中心

为保障西部地区在发展的同时实现碳达峰的目标,以广西为例,收集2000~2021年广西人口、经济、社会、能源和城市发展等方面的统计数据,根据联合国政府间气候变化专门委员会(IPCC)推荐的方法核算2000~2021年的碳排放量,采用岭回归识别影响... 详细信息

为保障西部地区在发展的同时实现碳达峰的目标,以广西为例,收集2000~2021年广西人口、经济、社会、能源和城市发展等方面的统计数据,根据联合国政府间气候变化专门委员会(IPCC)推荐的方法核算2000~2021年的碳排放量,采用岭回归识别影响碳排放的关键因素,构建STIRPAT碳排放预测模型,预测3种典型发展路径情景下广西2022~2040年碳排放量.结果表明,2000~2021年广西的CO_(2)排放总量呈现整体上升趋势,从2000年的95.49 Mt增长到2021年的390.15 Mt,年均增长率为6.93%.能源结构、产业结构、城镇化率是影响广西碳排放的三大显著影响因素.高碳发展路径下,到2040年广西碳排放量达623.32 Mt,中碳发展路径下在2040年达591.20 Mt,而低碳发展路径下在2035年达到峰值531.99 Mt.3种典型发展路径情景下,广西实现碳达峰需要面对不同的减排压力,只有低碳发展路径可能在2040年前实现碳达峰,如果想实现2030年碳达峰,则需进一步加强绿色低碳高质量发展.

关键词：碳达峰碳排放广西 STIRPAT模型岭回归

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高树中针灸学术思想管窥

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中国针灸 2025年第2期45卷 217-221,232页

作者：刘兵马玉侠高树中(指导) 中国中医科学院针灸研究所北京100700 山东中医药大学针灸推拿学院济南250355

对高树中教授针灸学术思想进行系统考察,并总结提炼为5条:①创立高氏“四关三通”理论与方法体系;②构建以脐为枢纽的“阴阳气机升降”理论;③挖掘并总结“人体立体分层全息对应”规律;④提出基于经脉与络脉理论的穴位系统“二分法”;... 详细信息

对高树中教授针灸学术思想进行系统考察,并总结提炼为5条:①创立高氏“四关三通”理论与方法体系;②构建以脐为枢纽的“阴阳气机升降”理论;③挖掘并总结“人体立体分层全息对应”规律;④提出基于经脉与络脉理论的穴位系统“二分法”;⑤发展针灸特色辨治理论。这些内容体现高树中教授关于针灸理论与临床思考的独特视角与鲜明特色,对针灸学科发展与学术进步有积极意义。

关键词：高树中学术思想四关三通针灸辨证

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基于AFSA-eCS混合算法的超磁致伸缩换能器输出特性分析

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电工技术学报 2025年第2期40卷 346-357页

作者：高兵吴泽伟赵能桐宁倩杨文虎湖南大学电气与信息工程学院长沙410082

超磁致伸缩换能器工作性能受到电-磁-机多场耦合的影响,常利用多场模型分析其非线性输出特性,而能否准确获取其多场耦合参数决定了模型的准确性,是换能器设计和优化的关键。鉴于换能器多场模型具有参数多、耦合强、参数辨识难等特点。... 详细信息

超磁致伸缩换能器工作性能受到电-磁-机多场耦合的影响,常利用多场模型分析其非线性输出特性,而能否准确获取其多场耦合参数决定了模型的准确性,是换能器设计和优化的关键。鉴于换能器多场模型具有参数多、耦合强、参数辨识难等特点。该文提出基于改进人工鱼群和布谷鸟混合的超磁致伸缩换能器多场模型参数辨识方法。首先,考虑切割棒材涡流效应的影响,建立超磁致伸缩换能器电-磁-机多场耦合的综合电路模型,来实现超磁致伸缩换能器输出行为的模拟;其次,针对模型参数维度多、耦合强的问题,提出了改进的人工鱼群和布谷鸟混合算法(AFSA-eCS),该方法引入精英个体反向学习策略、动态步长和动态发现概率以强化局部精细化搜索能力;最后,基于实验平台验证了综合电路模型和AFSA-eCS的有效性。结果表明:AFSA-eCS相较于单一算法与遗传退火混合算法(GA-SA)收敛快、参数辨识精度高,基于所提算法和模型能够快速有效分析换能器不同工况下的输出特性。

关键词：超磁致伸缩换能器参数辨识综合电路模型混合算法

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基于Druid的地震数据流检测方法

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自动化应用 2025年第2期66卷 93-95页

作者：李浩高兵大连大学信息工程学院辽宁大连116622

随着地震观测台网的发展和海量地震观测数据的产生,出现了地震数据读写速度慢、地震检测效率低的问题,这对地震数据的存储与检测提出了新的挑战。为解决以上问题,设计了地震数据的流式存储格式,并提出了基于Druid的地震数据流检测方法... 详细信息

随着地震观测台网的发展和海量地震观测数据的产生,出现了地震数据读写速度慢、地震检测效率低的问题,这对地震数据的存储与检测提出了新的挑战。为解决以上问题,设计了地震数据的流式存储格式,并提出了基于Druid的地震数据流检测方法。与现行方案相比,该方法具有更好的数据摄取和检测性能。

关键词： Druid数据库地震数据存储地震数据流地震数据检测

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