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The spatial variation of soil bacterial community assembly processes affects the accuracy of source tracking in ten major Chinese cities

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Science China(Life Sciences) 2021年第9期64卷 1546-1559页

作者： Teng Yang Yu Shi Jun Zhu Chang Zhao Jianmei Wang Zhiyong Liu Xiao Fu Xu Liu Jiangwei Yan meiqing yuan Haiyan Chu State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China Institute of Forensic Science Ministry of Public Security(MPS)Beijing 100038China School of Geography Sciences Nanjing Normal UniversityNanjing 210023China Single-Cell Center CAS Key Laboratory of BiofuelsQingdao Institute of BioEnergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China University of Chinese Academy of Sciences Beijing 100049China Beijing Institute of Genomics Chinese Academy of SciencesBeijing 100101China MPS’Key Laboratory of Forensic Genetics Beijing 100038China

Urban soils harbor billions of bacterial cells and millions of ***,the distribution patterns and assembly processes of bacterial communities remain largely uncharacterized in urban *** is also unknown if we can use the bacteria to track soil sources to certain cities and ***,Illumina MiSeq sequencing was used to survey soil bacterial communities from 529 random plots spanning 61 districts and 10 major cities in *** a 3,000 km range,community similarity declined with increasing geographic distance(Mantel r=0.62),and community composition was clustered by city(R^(2)=0.50).Within cities(<100 km),the aforementioned biogeographic patterns were *** analysis showed that homogenizing dispersal and dispersal limitation dominated soil bacterial assembly at small and large spatial scales,***,the probabilities of accurately tracking random soil sources to certain cities and districts were 90.0% and 66.7%,*** the tested samples originated from cities that were more than 1,265 km apart,the soil sources could be identified with nearly 100% ***,this study demonstrates the strong distance-decay relationship and the clear geographic zoning of urban soil bacterial communities among *** varied importance of different community assembly processes at multiple spatial scales strongly affects the accuracy of microbial source tracking.

关键词： urban soil bacteria distribution patterns assembly processes distance-decay relationship geographic zoning dispersal limitation homogenizing dispersal microbial source tracking

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A biogeographic map of soil bacterial communities in wheats field of the North China Plain

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Soil Ecology Letters 2019年第1期1卷 50-58页

作者： Yu Shi Yuntao Li meiqing yuan Jonathan M.Adams Xianzhang Pan Yunfeng Yang Haiyan Chu State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Forensic Genetics of Ministry of Public Security Institute of Forensic Science of Ministry of Public SecurityBeijing 100038China School of Water Energy and EnvironmentCranfield UniversityCranfield MK460ALUK State Key Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China

The vast diversity of soil bacteria provides essential ecosystem services that support agricultural *** in the diversity and composition of soil biota may have predictive values for soil nutrient cycling and resilience of ecosystem services,thus providing valuable insights to improve food *** North China Plain(NCP)is one of the world’s key agricultural regions,supplying more than 50% of the cereal consumed in ***,it is unknown whether soil microbial diversity is predictable across the *** the MiSeq Illumina platform,we examined bacterial community variation in relation to spatial and environmental factors from 243 soils in wheat-maize double cropping rotation fields across the NCP,which cover nearly 0.3 million km^(2).Based on observed bacterial communities and their relationships with environmental factors,we generated a map of bacterial communities across the *** highest bacterial diversity was found in the middle part of the NCP,with most of the variation in diversity attributable to differences in the community similarity of Actinobacteria and *** findings provide important baseline information for analyzing the relationships between microbial community,soil functionality and crop yields.

关键词： Predicting map Bacteria diversity Actinobacteria Alphaproteobacteria

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林浩添教授：人工智能与人工视觉——眼科防治“新赛道”

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眼科学报 2019年第3期34卷 206-209页

作者：安丹丹袁梅清 AME出版社

2019 国际眼科论坛:人工智能与人工视觉(IOF-AIAV)于2019 年5 月24 至26 日在深圳圆满举行。本次论坛以“人工智能与人工视觉”为主题,邀请来自新加坡、韩国、印度、埃及、摩洛哥、突尼斯、巴基斯坦以及香港和台湾等亚非国家和地区的眼... 详细信息

2019 国际眼科论坛:人工智能与人工视觉(IOF-AIAV)于2019 年5 月24 至26 日在深圳圆满举行。本次论坛以“人工智能与人工视觉”为主题,邀请来自新加坡、韩国、印度、埃及、摩洛哥、突尼斯、巴基斯坦以及香港和台湾等亚非国家和地区的眼科领域的优秀专家学者,就人工智能的应用、眼科博览、人工智能与医疗、眼科大数据和智能医疗、人工智能与影像分析、人工智能与青光眼以及人工视觉等专题进行交流与分享。

关键词：人工智能人工视觉眼科防治专家学者巴基斯坦影像分析新加坡

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烃化过程中苯丙烯比对反应结果的影响

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炼油设计 2000年第4期30卷 37-41页

作者：赵崇智姚亚平袁梅卿何立兰州炼油化工总厂甘肃省兰州市730060 上海石油化工研究院上海市201208

对烃化过程中苯丙烯比 (R)与反应结果的关系进行了研究。提出了苯核 (bm)、丙烯及衍生物 (pm)和实际苯丙烯比 (bm/pm)的计算方法。随着苯丙烯比的升高 ,丙烯单程转化率上升 ,异丙苯选择性上升 ,副反应降低。工业生产应用表明 :用实际苯... 详细信息

对烃化过程中苯丙烯比 (R)与反应结果的关系进行了研究。提出了苯核 (bm)、丙烯及衍生物 (pm)和实际苯丙烯比 (bm/pm)的计算方法。随着苯丙烯比的升高 ,丙烯单程转化率上升 ,异丙苯选择性上升 ,副反应降低。工业生产应用表明 :用实际苯丙烯比代替R ,稳定了操作和产品质量 ,产品异丙苯纯度由 94 .0 6%～ 98.17%提高到98.0 0 %～ 98.2 0 %。

关键词：异丙苯苯丙烯比例烃化比对反应催化剂

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T-49新型固体磷酸催化剂及其应用

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石油炼制与化工 2000年第1期31卷 10-14页

作者：姚亚平袁梅卿徐菁何立陈永福上海石油化工研究院上海201208

Ｔ－４９新型固体磷酸催化剂，是由具有连续水解速度分布的一系列聚磷酸硅和磷酸硼组成。Ｐ２Ｏ５／Ｈ２Ｏ质量比是该剂固有特性及其应用效果的决定性因素。Ｔ－４９催化剂研制中将全过程的优化简化为原料聚磷酸浓度、元素比和焙烧... 详细信息

Ｔ－４９新型固体磷酸催化剂，是由具有连续水解速度分布的一系列聚磷酸硅和磷酸硼组成。Ｐ２Ｏ５／Ｈ２Ｏ质量比是该剂固有特性及其应用效果的决定性因素。Ｔ－４９催化剂研制中将全过程的优化简化为原料聚磷酸浓度、元素比和焙烧条件三变量问题，制备中改变聚磷酸及其盐的聚合度分布，使Ｔ－４９催化剂具有合理的磷水比；在反应环境中按照反应产物酸度等值线图，调节反应器进料含水量，实现了对反应器内催化剂活性和床层压力降的调节和控制，使催化剂具有合适的活性和床层压力降上升速度。Ｔ－４９催化剂及其工艺在兰州炼油化工总厂工业应用，取得了良好的效果。

关键词：固体磷酸催化剂制备齐聚 T-49

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自发性食管破裂综述

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基层医学论坛 2010年第17期14卷 546-547页

作者：袁美卿于曈兴阳泉煤业集团第三医院山西阳泉045008

过去一向认为自发性食管破裂是严重致命的，成功救治是困难的，但近年来由于对此病认识上的提高，医学网络的互相交流，医疗设备的改进，药物的更新换代，只要诊断及时、处理合理，病死率明显下降。

关键词：自发性食管破裂综述医学网络医疗设备病死率

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The dopaminergic system and Alzheimer's disease

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Neural Regeneration Research 2025年第9期20卷 2495-2512页

作者： Yuhan Zhang yuan Liang Yixue Gu International Medical College Chongqing Medical UniversityChongqingChina College of Pharmacy Chongqing Medical UniversityChongqingChina Department of Neurology The First Affiliated Hospital of Chongqing Medical UniversityChongqing Key Laboratory of NeurologyChongqingChina

Alzheimer's disease is a common neurodegenerative disorder in older *** its prevalence,its pathogenesis remains unclea *** addition to the most widely accepted causes,which in clude excessive amyloid-beta aggregation,tau hyperphosphorylation,and deficiency of the neurotransmitter acetylcholine,numerous studies have shown that the dopaminergic system is also closely associated with the occurrence and development of this *** is a crucial catecholaminergic neurotransmitter in the human ***-associated treatments,such as drugs that target dopamine receptor D and dopamine analogs,can improve cognitive function and alleviate psychiatric symptoms as well as ameliorate other clinical *** r,therapeutics targeting the dopaminergic system are associated with various adverse reactions,such as addiction and exacerbation of cognitive *** review summarizes the role of the dopaminergic system in the pathology of Alzheimer's disease,focusing on currently available dopamine-based therapies for this disorder and the common side effects associated with dopamine-related *** aim of this review is to provide insights into the potential connections between the dopaminergic system and Alzheimer's disease,thus helping to clarify the mechanisms underlying the condition and exploring more effective therapeutic options.

关键词： adverse drug reaction Alzheimer's disease catecholamine dopamine receptor dopamine receptor heterodimers dopaminergic system neurodegenerative disease neurotransmitter signaling pathways traditional Chinese medicine treatment

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Toward Analytical Homogenized Relaxation Modulus for Fibrous Composite Material with Reduced Order Homogenization Method

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Computers, Materials & Continua 2025年第1期82卷 193-222页

作者： Huilin Jia Shanqiao Huang Zifeng yuan HEDPS Center for Applied Physics and Technology(CAPT)Department of Mechanics and Engineering SciencePeking UniversityBeijing100871China State Key Laboratory for Turbulence and Complex Systems Peking UniversityBeijing100871China

In this manuscript,we propose an analytical equivalent linear viscoelastic constitutive model for fiber-reinforced composites,bypassing general computational *** method is based on the reduced-order homogenization(ROH)*** ROH method typically involves solving multiple finite element problems under periodic conditions to evaluate elastic strain and eigenstrain influence functions in an‘off-line’stage,which offers substantial cost savings compared to direct computational homogenization *** to the unique structure of the fibrous unit cell,“off-line”stage calculation can be eliminated by influence functions obtained *** the standard solid model to the ROH method enables the creation of a comprehensive analytical homogeneous viscoelastic constitutive *** method treats fibrous composite materials as homogeneous,anisotropic viscoelastic materials,significantly reducing computational time due to its analytical *** approach also enables precise determination of a homogenized anisotropic relaxation modulus and accurate capture of various viscoelastic responses under different loading *** sets of numerical examples,including unit cell tests,three-point beam bending tests,and torsion tests,are given to demonstrate the predictive performance of the homogenized viscoelastic ***,the model is validated against experimental measurements,confirming its accuracy and reliability.

关键词： Homogenized relaxation modulus viscoelastic standard solid model reduced order homogenization fibrous composite material

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Optimal Scheduling of an Independent Electro-Hydrogen System with Hybrid Energy Storage Using a Multi-Objective Standardization Fusion Method

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Energy Engineering 2025年第1期122卷 63-84页

作者： SuliangMa ZeqingMeng Mingxuan Chen yuan Jiang School of Electrical and Control Engineering North China University of TechnologyBeijing100144China ChinaThree Gorges Technology Co. Ltd.Beijing100032China School of Automation and Electrical Engineering University of Science and Technology BeijingBeijing100083China

In the independent electro-hydrogen system(IEHS)with hybrid energy storage(HESS),achieving optimal scheduling is ***,it presents a challenge due to the significant deviations in values ofmultiple optimization objective functions caused by their physical *** deviations seriously affect the scheduling process.A novel standardization fusion method has been established to address this issue by analyzing the variation process of each objective function’s *** optimal scheduling results of IEHS with HESS indicate that the economy and overall energy loss can be improved 2–3 times under different optimization *** proposed method better balances all optimization objective functions and reduces the impact of their *** the cost of BESS decreases by approximately 30%,its participation deepens by about 1 ***,if the price of the electrolyzer is less than 15￥/kWh or if the cost of the fuel cell drops below 4￥/kWh,their participation will increase *** study aims to provide a more reasonable approach to solving multi-objective optimization problems.

关键词： Electro-hydrogen system multi-objective optimization standardization method hybrid energy storage system

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Sex differences in aging and injured brain

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Neural Regeneration Research 2025年第10期20卷 2901-2902页

作者： Jordan N.Williamson yuan Yang University of Illinois Urbana-Champaign Grainger College of EngineeringDepartment of BioengineeringUrbanaILUSA Carle Foundation Hospital Stephenson Family Clinical Research InstituteClinical Imaging Research CenterUrbanaILUSA University of Illinois Urbana-Champaign Beckman Institute for Advanced Science and TechnologyUrbanaILUSA Northwestern University Department of Physical Therapy and Human Movement SciencesChicagoILUSA

Background:The prevalence,age of onset,and symptomatology of traumatic brain injury,stroke,and neurodegenerative diseases(such as Alzheimer’s disease(AD),Parkinson’s disease,amyotrophic lateral sclerosis,and Huntington’s disease)differ substantially between males and *** higher prevalence of these brain disorders has been attributed to females having a greater longevity compared with *** one of the greatest risk factors of acquired brain injury(such as stroke,traumatic brain injury caused by fall)and neurodegenerative disease is age.

关键词： Huntington prevalence traumatic

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