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Design of a MAPS readout electronics prototype for BESIII inner tracker

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Radiation Detection Technology and Methods 2020年第2期4卷 241-249页

作者： Xing-cheng Tian Xiao-shan Jiang Jun Hu qun ou yang Ming-yi Dong Chao-yue Qu Xu-dong Ju Hong-yu Zhang Ye Wu Xiao-xu Lu State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Beijing 100049China University of Chinese Academy of Sciences(UCAS) Beijing 100049China China Spallation Neutron Source Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Dongguan 523803China

Background The spatial resolution and the reconstruction efficiency of the main drift chamber of the Beijing Spectrometer III has degraded aftermore than nine years of *** improved new inner drift chamber has been constructed to replace the old chamber in case of the radiation *** active pixel sensor(MAPS)based detector prototype is selected as one of the prototype schemes for the inner chamber *** Design a set of MAPS readout electronics system for the inner drift chamber *** system can verify the function and performance of the selected MAPS chip and discover the matters needing attention when designing large-scale *** The electronics system design is composed of three *** first part is flexible printed circuit boards(PCBs)assembled with the MAPS *** second part is digital readout boards,which are connected to the flexible PCBs via FPGA mezzanine card *** digital readout board realizes the configuration of the MAPS chip register,receives and processes the data output by the MAPS chip,and transfers the processed data to the DAQ *** third part includes a readout control board and two fan-out boards that used to separately fan out the trigger signal and the start signal to all the digital readout *** and conclusion AMAPS readout electronics system consisting of five MAPS based detector prototypes is *** system can work stably under the electron beam experimental conditions with a frequency up to 2 kHz and energy ranging from 1 to 5 *** system detection efficiency of the electron beam is∼95%,and the spatial resolution is∼5.3μm at electron energies of 1 *** design of the electronics system meets the requirements for verifying the performance of the MAPS chips and the technical feasibility of the detector structure.

关键词： BESIII MAPS pixel detector JTAG FPGA

A Periodic Dividend Problem with Inconstant Barrier in Markovian Environment

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Acta Mathematica Sinica,English Series 2015年第2期31卷 281-294页

作者： Fang JIN Hui ou Xiang qun yang College of Mathematics and Computer Sciences Hu'nan Normal University

Periodic dividend problem is a meaningful issue. Based on a compound binomial model with periodic dividend, we use a homogeneous, ergodic and irreducible discrete-time Markov chain to express the evolution from one period to the subsequent of the economic or the environmental and climatic conditions. We derive some properties about the model. A system of integral equations for the expectation and the r-th moment of discounted dividends until ruin time are obtained respectively. Moreover, by using of Contraction Mapping Principle, we solve the equation system and obtain the explicit expression.

关键词： Periodic dividend Markovian environment inconstant barrier ruin time discounted dividends contraction mapping principle

The Impact of Relative Humidity and Atmospheric Pressure on Mortality in Guangzhou, China

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Biomedical and Environmental Sciences 2014年第12期27卷 917-925页

作者： ou Chun Quan yang Jun ou Qiao qun LIU Hua Zhang LIN Guo Zhen CHEN Ping Yan QIAN Jun GUO Yu Ming State Key Laboratory of Organ Failure Research Department of Biostatistics School of Public Health and Tropical Medicine Southern Medical University National Institute for Communicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Guangzhou First People's Hospital Guangzhou Medical University Guangzhou Center for Disease Control and Prevention Department of Mathematics and Physics School of Biomedical Engineering Southern Medical University Department of Epidemiology and Biostatistics School of Population Health The University of Queensland

Objective Although many studies have examined the effects of ambient temperatures on mortality, little evidence is on health impacts of atmospheric pressure and relative humidity. This study aimed to assess the impacts of atmospheric pressure and relative humidity on mortality in Guangzhou, China. Methods This study included 213,737 registered deaths during 2003-2011 in Guangzhou, China. A quasi-Poisson regression with a distributed lag non-linear model was used to assess the effects of atmospheric pressure/relative humidity. Results We found significant effect of low atmospheric pressure/relative humidity on mortality. There was a 1.79% （95% confidence interval： 0.38%-3.22%） increase in non-accidental mortality and a 2.27% （0.07%-4.51%） increase in cardiovascular mortality comparing the 5th and 25th percentile of atmospheric pressure. A 3.97% （0.67%-7.39%） increase in cardiovascular mortality was also observed comparing the 5th and 25th percentile of relative humidity. Women were more vulnerable to decrease in atmospheric pressure and relative humidity than men. Age and education attainment were also potential effect modifiers. Furthermore, low atmospheric pressure and relative humidity increased temperature-related mortality. Conclusion Both low atmospheric pressure and relative humidity are important risk factors of mortality. our findings would be helpful to develop health risk assessment and climate policy interventions that would better protect vulnerable subgroups of the population.

关键词： Relative humidity Atmospheric pressure Temperature Mortality

Estimation of Land Production and Its Response to Cultivated Land Conversion in North China Plain

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Chinese Geographical Science 2011年第6期21卷 685-694页

作者： JIANG qun＇ou DENG Xiangzheng ZHAN Jinyan HE Shujin Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Center for Chinese Agricultural Policy Chinese Academy of Sciences Beo＇ing 100101 China State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing 100875 China

Food safety and its related influencing factors in China are the hot research topics currently,and cultivated land conversion is one of the significant factors influencing food safety in *** the North China Plain as the study area,this paper examines the changes of cultivated land area using satellite images,estimates land productivity from 1985 to 2005 using the model of Estimation System for Land Productivity(ESLP),and analyzes the impact of cultivated land conversion on the land *** with the grain yield data from statistical yearbooks,the results indicate that ESLP model is an effective tool for estimating land *** productivity in the North China Plain showed a slight decreasing trend from 1985 to 2005,spatially,increased from the north to the south gradu-ally,and the net changes varied in different *** land area recorded a marginal decrease of 8.0 × 105 ha,mainly converted to other land *** land conversion had more significant negative impacts on land produc-tion than land productivity *** production decreased by about 6.48 × 106 t caused by cultivated land conversion between 1985 and 2005,accounting for 91.9% of the total land production *** the land productivity increased in Anhui and Jiangsu provinces,it can not offset the overall adverse effects caused by cultivated land ***,there are significant meanings to control the cultivated land conversion and improve the land pro-ductivity for ensuring the land production in the North China Plain.

关键词： land productivity land production cultivated land cultivated land conversion North China Plain

综合应用碘油、PVA、明胶海绵颗粒介入治疗子宫肌瘤的临床研究

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实用放射学杂志 2001年第12期17卷 915-917页

作者：李高文刘素云郭成月朱雪连吴小平黄瑶群欧阳韶军陈海杰广东省粤北人民医院介入科广东省粤北人民医院妇产科广东省粤北人民医院介入科广东韶关512026

目的　探讨应用碘油、PVA、明胶海绵颗粒介入治疗子宫肌瘤的临床效果。方法　对 36例子宫肌瘤进行选择性双侧子宫动脉栓塞灌注碘油、PVA、明胶海绵 ,随访 3～ 2 0个月 ,平均 9个月 ,观察术后症状缓解情况 ,子宫缩小和肌瘤缩小程度。结果... 详细信息

目的　探讨应用碘油、PVA、明胶海绵颗粒介入治疗子宫肌瘤的临床效果。方法　对 36例子宫肌瘤进行选择性双侧子宫动脉栓塞灌注碘油、PVA、明胶海绵 ,随访 3～ 2 0个月 ,平均 9个月 ,观察术后症状缓解情况 ,子宫缩小和肌瘤缩小程度。结果　36例右侧股动脉穿刺操作全部成功。子宫肌瘤动脉造影 ,表现为子宫动脉明显增粗、迂曲、分支增多、子宫增大、肿瘤染色灶明显。栓塞后肌瘤染色灶明显消失 ,栓塞剂加用抗生素 ,术后反应 (发热、疼痛、呕吐 )明显减轻 ,子宫肌瘤缩小率 46 .3 %～ 91.7% ,其中肌瘤缩小 5 0 %以上占 86 .6 % ,性激素术前、术后无明显差异。结论　综合应用碘油、PVA、明胶海绵颗粒介入治疗子宫肌瘤是非手术治疗的良好方法。

关键词：介入治疗动脉栓塞子宫肌瘤

Environmental cost and pollution risk caused by the industrial transfer in Qinghai Province

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Frontiers of Earth Science 2014年第3期8卷 362-374页

作者： qun'ou JIANG Chengcai TANG Jinyan ZHAN Wei ZHANG Feng WU School of Soil and Water Conservation Beijing Forestry University Beijing 100038 China School of Tourism Management Beijing International Studies University Beijing 100024 China State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing 100875 China

With the rising pressure due to energy consumption and costs of environmental protection and recovery, industrial transfer from the eastern to central and western areas has surged in China. However, extremely fragile ecological conditions and severe water shortage are significant hurdles for industry development in Western China. Whether the vulnerable environment can bear the pollution caused by the transferred industry from Eastern China becomes a significant issue. This study firstly estimates energy and environmental costs in different areas of China, and assesses the necessity to upgrade the industrial structure of Qinghai Province. Then the emis- sions of waste water, waste gas, and smoke caused by transferred industries are calculated by Input-output Model. On the basis of the effect analysis of waste emission on environment, pollution risks of Qinghai province are assessed. The results illustrate that the costs of environmental protection and recovery in China have a gradient distribution, of which the energy efficiency is Lower while environmental costs are higher in Western China. Industrial structure adjustment has different impacts on the pollution of different sectors. Although the development of machinery and equipment, hotels and catering services, and real estate, leasing, and business services has increased the emission of pollutants, it is offset by the decreasing emissions caused by other industries such as construction and metal products. Therefore, although economic development will increase environ- mental pollution, industrial adjustments can effectively decrease waste water and waste gas emissions to reduce the pollution risk. It should be noted that there are still tremendous challenges for industrial transfer in Qinghai Province to coordinate the environment and industry development.

关键词： environmental cost industrial transfer energy,pollution risk Qinghai

Identification and alleviation pathways of multidimensional poverty and relative poverty in counties of China

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Journal of Geographical Sciences 2021年第12期31卷 1715-1736页

作者： XU Lidan DENG Xiangzheng JIANG qun'ou MA Fengkui School of Soil and Water Conservation Beijing Forestry UniversityBeijing 100038China Institute of Geographic Sciences and Natural Resources Research CASBeijing 100101China Key Laboratory of Soil and Water Conservation and Desertification Prevention Beijing Forestry UniversityBeijing 100083China

To realize efficient and sustainable poverty alleviation,this study firstly investigated the identification of multidimensional poverty and relative poverty,and then explored relevant poverty alleviation *** levels in 31 provinces including the autonomous regions and municipalities of China were identified at the county level using the average nighttime light index(ANLI),county multidimensional development index(CMDI),and a method combining multidimensional poverty index and relative poverty *** alleviation pathways for poverty-stricken counties were explored from the aspects of industry,education,tourism and *** results revealed that nearly 60% of counties in China were primarily under relative poverty,most of which were corresponded to light relative *** terms of ANLI and CMDI,63% and 79% of the national poverty-stricken counties,as of 2018,could be identified,suggesting that CMDI had a higher performance for identifying poverty at the county *** terms of poverty alleviation pathways,414,172,442,and 298 poverty-stricken counties were receptive to industry poverty alleviation,education poverty alleviation,tourism poverty alleviation,and agriculture poverty alleviation,and 61%of counties had more poverty-causing factors,implying that multidimensional poverty alleviation is suitable in most of the counties.

关键词： nighttime light index multidimensional poverty relative poverty coupling coordination model targeted poverty alleviation

Gut microbiota induced abnormal amino acids and their correlation with diabetic retinopathy

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International Journal of Ophthalmology(English edition) 2024年第5期17卷 883-895页

作者： Sheng-qun Jiang Su-Na Ye Yin-Hua Huang Yi-Wen ou Ke-yang Chen Jian-Su Chen Shi-Bo Tang Aier Eye Hospital Jinan UniversityGuangzhou 510000Guangdong ProvinceChina Aier Eye Institute and Changsha Aier Hospital Changsha 410000Hunan ProvinceChina The First Affiliated Hospital of Bengbu Medical University Bengbu 233000Anhui ProvinceChina School of Public Health Anhui Medical UniversityHefei 230000Anhui ProvinceChina

AIM:To explore the correlation of gut microbiota and the metabolites with the progression of diabetic retinopathy(DR)and provide a novel strategy to elucidate the pathological mechanism of ***:The fecal samples from 32 type 2 diabetes patients with proliferative retinopathy(PDR),23 with nonproliferative retinopathy(NPDR),27 without retinopathy(DM),and 29 from the sex-,age-and BMI-matched healthy controls(29 HC)were analyzed by 16S rDNA gene *** fecal samples from PDR,DM,and HC groups were assayed by untargeted *** metabolites were measured using liquid chromatographymass spectrometry(LC-MS)*** between gut microbiota and fecal metabolites were ***:A cluster of 2 microbiome and 12 metabolites accompanied with the severity of DR,and the close correlation of the disease progression with PDR-related microbiome and metabolites were *** be specific,the structure of gut microbiota differed in four *** and richness of gut microbiota were significantly lower in PDR and NPDR groups,than those in DM and HC groups.A cluster of microbiome enriched in PDR group,including Pseudomonas,Ruminococcaceae-UCG-002,Ruminococcaceae-UCG-005,Christensenellaceae-R-7,was *** analysis showed that the glucose and nicotinate degradations were significantly higher in PDR group than those in HC ***,serine,ornithine,and arachidonic acid were significantly enriched in PDR group,while proline was enriched in HC *** analysis illustrated that arginine biosynthesis,lysine degradation,histidine catabolism,central carbon catabolism in cancer,D-arginine and D-ornithine catabolism were elevated in PDR *** analysis revealed that Ruminococcaceae-UCG-002 and Christensenellaceae-R-7 were positively associated with L-arginine,ornithine levels in fecal ***:This study elaborates the different microbiota structure in the gut from four *** relative abundance of

关键词： proliferative retinopathy gut microbiota Ruminococcaceae amino acid metabolism arginine

Laparoscopy-assisted total gastrectomy with trans-orally inserted anvil(OrVil^(TM)):A single institution experience

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World Journal of Gastroenterology 2013年第5期19卷 755-760页

作者： Guan-qun Liao Xiao-Wei ou Shi-Qiang Liu Shao-Rui Zhang Wen Huang Department of General Surgery Foshan Affiliated Hospital of South Medical University

AIM:To investigate the feasibility of laparoscopyassisted total gastrectomy(LATG)using trans-orally inserted anvil(OrVilTM)in terms of operative characteristics and short term outcomes. RESULTS:Characteristics of 27 patients with gastric cancer who underwent LATG from October 2009 to October 2012 in the Foshan Affiliated Hospital of South Medical University were retrospectively reviewed. Among these patients,six were reconstructed by minilaparotomy and 21 by *** clinicopathological characteristics,total operation time,total blood loss, abdominal incision and complications of anastomosis including stenosis and leakage,were compared between the groups undergoing LATG with OrVilTM and the group undergoing minilaparotomy. RESULTS:The operations were successfully performed on all the patients without intraoperative complications or conversion to open ***(10%)patients received palliative procedure under laparoscope who were prepared for LATG *** case had hepatic metastatic carcinoma and 1 case had tumor recurrence near the anastomosis 8 mo after *** mean follow-up duration was 10 mo(range,2-24 mo). Operation time was significantly reduced by the use of OrVilTM(198.42±30.28 min vs 240.83±8.23 min). The postoperative course with regard to occurrence of stenosis and leakage was not different between the two *** were no significant differences in estimated blood *** upper abdominal incision was smaller in OrVilTM group than in minilaparotomy group (4.31±0.45 cm vs 6.43±0.38 cm). CONCLUSION:LATG using OrVil TM is a technically feasible surgical procedure with sufficient lymph node dissection,less operation time and acceptable morbidity.

关键词： Total gastrectomy Esophagojejunostomy Laparoscopy-assisted total gastrectomy Reconstruction OrVilTM