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International Journal of Minerals,Metallurgy and Materials 2013年第3期20卷 307-312页

作者： ming-jie yang Wei Liu Jia-lin Sun Jin-quan Wei Jia-lin Zhu Laboratory of Advanced Materials Department of Material Science and Engineering Tsinghua University State Key Laboratory of Low-Dimensional Quantum Physics Department of Physics Tsinghua University Key Laboratory for Advanced Materials Processing Technology of Education Ministry Department of Mechanical Engineering Tsinghua University

A novel photodetector based on double-walled carbon nanotube （DWCNT） film/TiO2 nanotube array （TNA） heterojunctions was fabricated, which exhibited high photoresponse in a broad spectral range. The photoresponse of the detector was dramatically dependent on the length of the TNAs. High photocurrent-to-dark current ratio with a value of 3360 was observed in the visible range by optimizing the lengths of the TNAs. The photosensitive regions could be extended into the near-infrared range. These results reveal that DWCNT film/TNA heterojunctions show potential applications for broad band photodetectors.

关键词： photodetectors titanium dioxide carbon nanotubes heterojunctions

A compensation circuit for the gain temperature drift of silicon photomultiplier tube

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Radiation Detection Technology and Methods 2023年第4期7卷 571-577页

作者： Chang-ge Zi Jin-fan Chang ming-jie yang Feng-fan yang Yu-Sheng Wang Institute of High Energy Physics Chinese Academy of SciencesBeijing100049China University of Chinese Academy of Sciences Beijing100049China State Key Laboratory of Particle Detection and Electronics of China Beijing100049China Key Laboratory of Particle Astrophysics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing100049China TIANFU Cosmic Ray Research Center Chengdu610213SichuanChina

Background Silicon photomultiplier tube(SiPM)has been widely applied in high energy physics *** wide field of view Cherenkov telescope array of Large High Altitude Air Shower Observatory(LHAASO)consists of 12 arrays of *** of the array includes 32*32 *** Array of imaging atmospheric Cherenkov Telescopes(LACT),the next generation of particle astrophysics experiment,will also adopt SiPM *** LACT will located at a high altitude,leading to a significant operating temperature variation of the *** the gain of SiPM is temperature-sensitive,in order to keep it stable,compensation for the gain is necessary by adjusting the bias voltage of *** The compensation circuit provides the bias voltage of SiPM by using a high-voltage output Digital-to-Analog Converter and several high-voltage output *** reduce the temperature drift of the gain,the compensation circuit adjust the bias voltage of SiPM according to the operating *** The compensation circuit supplies SiPM with an adjustable bias voltage from 0 to 80 V,and the adjustment step is 1.22 *** the output voltage of the compensation circuit is 64 V,the voltage ripple is 2.59 mV,and the temperature drift is 0.17 mV/℃.In the temperature range from−20 to 30℃,the compensation circuit reduces the gain temperature drift of SiPM to within 2%.

关键词： SiPM Gain Compensation LACT

A QTC-based signal readout for position-sensitive multi-output detectors

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Nuclear Science and Techniques 2016年第5期27卷 208-214页

作者： Wei Zhou Zhi-ming Zhang Dao-Wu Li Pei-Lin Wang Bao-Tong Feng Xian-Chao Huang Ting-Ting Hu Xiao-Hui Li Yan Chen Ying-jie Wang Yan-Tao Liu Yi-Wen Zhang Shi-Feng Sun Xiao-Yue Gu ming-jie yang Xiong Xiao Long Wei Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Beijing Engineering Research Center of Radiographic Techniques and Equipment Beijing 100049 China University of Chinese Academy of Sciences Beijing 100049

A new signal readout method for position-sensitive multi-output detectors,such as those in high-energy spectroscopy measurement and nuclear imaging,was developed by combining the charge division circuit,summing circuit and charge-to-time conversion(QTC) *** 64 outputs of a Hamamatsu H8500 position-sensitive photomultiplier tube were processed,and three digital pulses were *** widths of digital pulses were determined using the time-to-digital converter in an field programmable gate *** energy and position information of incident y-rays is estimated based on the proportionality between the width of digital pulses and input charge created by y-photons.A prototype was built using discrete components and tested,and the energy and position resolutions were improved compared with that obtained with standard *** method greatly simplifies the front-end electronics and the digital *** enables a compact electronics system and an easy integration into an ASIC.

关键词：输出信号位置灵敏探测器多输出读出位置灵敏光电倍增管现场可编程门阵列时间-数字转换器位置敏感探测器

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植被缓流效果试验研究

泥沙研究 2017年第2期42卷 54-60页

作者：杨帆张宽地杨明义杨婕西北农林科技大学水利与建筑工程学院陕西杨凌712100 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室陕西杨陵712100

为深入研究植被减流减沙特征及对流域水土保持效益的影响,本文通过5个覆盖度,6个坡度和7个流量的组合条件下的室内放水试验,系统研究了植被对坡面水流的缓流特征。结果表明:随着植被覆盖度增加,植被对坡面水流的阻滞作用逐渐凸显,即缓... 详细信息

为深入研究植被减流减沙特征及对流域水土保持效益的影响,本文通过5个覆盖度,6个坡度和7个流量的组合条件下的室内放水试验,系统研究了植被对坡面水流的缓流特征。结果表明:随着植被覆盖度增加,植被对坡面水流的阻滞作用逐渐凸显,即缓流系数减小,缓流效果增强,当植被覆盖度大于4.650%时,缓流效果趋于稳定。在试验流量范围内,缓流系数随流量的增加呈现逐渐减少的趋势,而随坡度的增加略有增加。缓流系数随水深和雷诺数增加而减小,而与弗劳德数呈反C型分布。最后,建立了基于试验控制变量(植被覆盖度,流量和坡度)的缓流系数预测公式。

关键词：坡面流模拟植被覆盖度缓流系数

Prognostic model for esophagogastric variceal rebleeding after endoscopic treatment in liver cirrhosis: A Chinese multicenter study

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World Journal of Gastroenterology 2025年第2期31卷 85-101页

作者： Jun-Yi Zhan jie Chen Jin-Zhong Yu Fei-Peng Xu Fei-Fei Xing De-Xin Wang ming-Yan yang Feng Xing Jian Wang Yong-Ping Mu Cell Biology Laboratory Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China Institute of Liver Diseases Shanghai Academy of Chinese MedicineShanghai 201203China Clinical Key Laboratory of Traditional Chinese Medicine of Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China Key Laboratory of Liver and Kidney Disease of the Ministry of Education Shanghai University of Traditional Chinese MedicineShanghai 201203China Department of Gastroenterology and Hepatology Zhongshan Hospital Affiliated to Fudan UniversityShanghai 200032China Shanghai Institute of Liver Disease Fudan UniversityShanghai 200032China Evidence-Based Medicine Center Fudan UniversityShanghai 200032China Department of Gastrointestinal Endoscopy Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China Department of Hepatology Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China

BACKGROUND Rebleeding after recovery from esophagogastric variceal bleeding(EGVB)is a severe complication that is associated with high rates of both incidence and *** its clinical importance,recognized prognostic models that can effectively predict esophagogastric variceal rebleeding in patients with liver cirrhosis are *** To construct and externally validate a reliable prognostic model for predicting the occurrence of esophagogastric variceal *** This study included 477 EGVB patients across 2 cohorts:The derivation cohort(n=322)and the validation cohort(n=155).The primary outcome was rebleeding events within 1 *** least absolute shrinkage and selection operator was applied for predictor selection,and multivariate Cox regression analysis was used to construct the prognostic *** validation was performed with bootstrap *** assessed the discrimination,calibration and accuracy of the model,and performed patient risk *** Six predictors,including albumin and aspartate aminotransferase concentrations,white blood cell count,and the presence of ascites,portal vein thrombosis,and bleeding signs,were selected for the rebleeding event prediction following endoscopic treatment(REPET)*** predicting rebleeding within 1 year,the REPET model ex-hibited a concordance index of 0.775 and a Brier score of 0.143 in the derivation cohort,alongside 0.862 and 0.127 in the validation ***,the REPET model revealed a significant difference in rebleeding rates(P<0.01)between low-risk patients and intermediate-to high-risk patients in both *** We constructed and validated a new prognostic model for variceal rebleeding with excellent predictive per-formance,which will improve the clinical management of rebleeding in EGVB patients.

关键词： Esophagogastric variceal bleeding Variceal rebleeding Liver cirrhosis Prognostic model Risk stratification Secondary prophylaxis

Intelligent Fault Diagnosis Research of Electromagnetic Interference Based on the Combination of CBR and RBR

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Intelligent Fault Diagnosis Research of Electromagnetic Inte...

Dptic properties of bile liquid crystals in human body

第二十九届中国控制会议

作者： GANG ming-Gang,CHEN jie,yang Bo,CAI Tao,CHENG Lan College of Automation Beijing Institute of Technology Beijing 100081,P.R.China.

It is difficult to diagnose the faults of electromagnetic interference（EMI）since the knowledge of it is *** order to solve the problem,an intelligent fault diagnosis method of electromagnetic interference is proposed based on the combination of CBR and *** the proposed method CBR is relied on mainly and supplemented with the RBR,i.e.,RBR is enabled when the similarity of the target case and the source case of CBR case base is below the threshold *** fault diagnosis problem of electromagnetic interference can be solved much better by the proposed method.

关键词： Intelligent Fault Diagnosis CBR RBR EMI

来源： cnki会议评论

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World Journal of Gastroenterology 2000年第2期6卷 248-251页

作者： Hai ming yang jie Wu Jin Yi Li Jian Li Zhou Li Jun He Xian Fang Xu Department of Physics and Mathematics,Kunming Medical College,Kunming 650031,Yunnan Province,China Department of Physics,Yunnan Normal University,Kunming 650092,Yunnan Province,China

AIM To further study the properties of bileliquid crystals,and probe into the relationshipbetween bile liquid crystals and gallbladderstone formation,and provide evidence for theprevention and treatment of *** The optic properties of bile liquidcrystals in human body were determined by themethod of crystal optics under polarizingmicroscope with plane polarized light andperpendicular polarized *** Under a polarizing microscope withplane polarized light,bile liquid crystalsscattered in bile appeared round,oval orirregularly *** color of bile liquidcrystals was a little lighter than that of the *** the stage was turned round,thecolor of bile liquid crystals or the darkness andlightness of the color did not change *** the border between bile liquid crystals andthe bile around,brighter Becke-Line could *** the microscope tube is lifted,Becke-Line moved inward,and when lowered,Becke-Line moved *** aperpendicular polarized light,bile liquid crystalsshowd some special interference patterns,called Malta *** the stage was turninground at an angle of 360°,the Malta cross showed four times of *** the vibratingdirection of 45° angle of relative to upper andlower polarizing plate,gypsum test-board withoptical path difference of 530 nm was inserted,the first and the third quadrants of Malta crossappeared to be blue,and the second and thefourth quadrants appeared *** micatest-board with optical path difference of 147 nmwas inserted,the first and the third quadrants ofMalta cross appeared yellow,and the secondand the fourth quadrants appeared dark *** The bile liquid crystals weredistributed in bile in the form of global *** polychroism and absorption were slight,but the edge and Becke-Line were very *** index was larger than that of the *** liquid crystals were uniaxial *** interference colors were the firstorder gr

关键词： cholecystolithiasis liquid crystals optic properties

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食源性乳酸菌抗药性分析

山东大学学报（理学版） 2011年第10期46卷 178-182页

作者：孔健季明杰杨埔山东大学微生物技术国家重点实验室山东济南250100

抗生素的不合理使用导致病原菌耐药性已成为威胁人类健康的公共问题。乳酸菌在食品发酵、饲料青贮等领域具有悠久的应用历史,是公认的安全性菌株。但是研究发现,有些乳酸菌具有抗药性,根据抗药因子的可转移性,乳酸菌的抗药性可分为固有... 详细信息

抗生素的不合理使用导致病原菌耐药性已成为威胁人类健康的公共问题。乳酸菌在食品发酵、饲料青贮等领域具有悠久的应用历史,是公认的安全性菌株。但是研究发现,有些乳酸菌具有抗药性,根据抗药因子的可转移性,乳酸菌的抗药性可分为固有抗药性和外获抗药性。外获抗药性多由接合质粒或转座因子编码,这些抗药基因随发酵食品或益生菌剂进入肠道,是否与肠道共生菌或病原菌进行传递进而对机体带来危害引起了人们的关注。本文就食源性乳酸菌抗药性产生的分子机制、检测方法以及可能的抗药基因水平转移方式进行综述,以便对食源性乳酸菌的抗药性有一个全面认识。

关键词：乳酸菌抗药性基因水平转移

Activin A receptor type 1C single nucleotide polymorphisms associated with esophageal squamous cell carcinoma risk in Chinese population

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 39-51页

作者： Si-Yun Lin Hou Huang Jin-jie Yu Feng Su Tian Jiang Shao-Yuan Zhang Lu Lv Tao Long Hui-Wen Pan Jun-Qing Qi Qiang Zhou Wei-Feng Tang Guo-Wen Ding Li-ming Wang Li-jie Tan Jun Yin Department of Thoracic Surgery Zhongshan Hospital Affiliated to Fudan UniversityShanghai 200032China Shanghai Key Laboratory of Clinical Geriatric Medicine Huadong Hospital Affiliated to Fudan UniversityShanghai 200040China Department of Cardiothoracic Surgery The Affiliated People's Hospital of Jiangsu UniversityZhenjiang 212002Jiangsu ProvinceChina Department of Thoracic Surgery Sichuan Cancer Hospital&InstituteChengdu 610042Sichuan ProvinceChina Department of Cardiothoracic Surgery Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing 210000Jiangsu ProvinceChina Department of Respiratory and Critical Care Medicine Shanghai Xuhui Central HospitalShanghai 200032China

BACKGROUND Transforming growth factor-β(TGF-β)superfamily plays an important role in tumor progression and *** A receptor type 1C(ACVR1C)is a TGF-βtype I receptor that is involved in tumorigenesis through binding to dif-ferent *** To evaluate the correlation between single nucleotide polymorphisms(SNPs)of ACVR1C and susceptibility to esophageal squamous cell carcinoma(ESCC)in Chinese Han *** In this hospital-based cohort study,1043 ESCC patients and 1143 healthy controls were *** SNPs(rs4664229,rs4556933,rs77886248,rs77263459,rs6734630)of ACVR1C were assessed by the ligation detection reaction ***-Weinberg equilibrium test,genetic model analysis,stratified analysis,linkage disequi-librium test,and haplotype analysis were *** Participants carrying ACVR1C rs4556933 GA mutant had significantly decreased risk of ESCC,and those with rs77886248 TA mutant were related with higher risk,especially in older male *** the haplotype analysis,ACVR1C Trs4664229Ars4556933Trs77886248Crs77263459Ars6734630 increased risk of ESCC,while Trs4664229Grs4556933Trs77886248Crs77263459Ars6734630 was associated with lower susceptibility to *** ACVR1C rs4556933 and rs77886248 SNPs were associated with the susceptibility to ESCC,which could provide a potential target for early diagnosis and treatment of ESCC in Chinese Han population.

关键词： Activin A receptor type 1C Single nucleotide polymorphisms Esophageal squamous cell carcinoma Genetic susceptibility Hospital-based cohort study

基于有限元分析的大理、丽江地区穿斗式木结构山架抗震性能

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地震研究 2025年第1期48卷 100-111页

作者：叶阳杨健强明小娜周洋王杰刘绍昌高扬云南省地震局云南昆明650224 中国地震局昆明地震预报研究所云南昆明650224 德宏州防震减灾局云南芒市678400

通过实地调查,分析了大理、丽江地区木结构榫卯结构的配置情况以及二者结构上的差异。为了研究二者的抗震性能与受力特性,通过有限元软件对两个地区的典型穿斗式木结构山架进行低周往复荷载模拟。结果表明:丽江地区穿斗式木结构山架抗... 详细信息

通过实地调查,分析了大理、丽江地区木结构榫卯结构的配置情况以及二者结构上的差异。为了研究二者的抗震性能与受力特性,通过有限元软件对两个地区的典型穿斗式木结构山架进行低周往复荷载模拟。结果表明:丽江地区穿斗式木结构山架抗震性能优于大理地区,两地木结构的薄弱点均在横向构件与纵向构件的榫卯节点处,榫卯节点的薄弱点位于榫头末端,二者的抗侧刚度均不高,易在水平荷载下倾斜。

关键词：穿斗式木结构抗震性能大理丽江有限元分析