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Changes in the relationship between species richness and belowground biomass among grassland types and along environmental gradients in Xinjiang, Northwest China

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Journal of Arid Land 2019年第6期11卷 855-865页

作者： YANG Yuling LI Minfei MA Jingjing CHENG Junhui LIU Yunhua jia Hongtao LI Ning WU Hongqi SUN Zongjiu FAN Yanmin SHENG jiandong jiang Ping'an Xinjiang Key Laboratory of Soil and Plant Ecological Processes College of Grassland and Environmental SciencesXinjiang Agricultural UniversityUrumqi 830052China Xinjiang Institute of Ecology and Geography Chinese Academy of SciencesUrumqi 830011China

The association between biodiversity and belowground biomass(BGB) remains a central debate in *** this study, we compared the variations in species richness(SR) and BGB as well as their interaction in the top(0–20 cm), middle(20–50 cm) and deep(50–100 cm) soil depths among 8 grassland types(lowland meadow, temperate desert, temperate desert steppe, temperate steppe desert, temperate steppe, temperate meadow steppe, mountain meadow and alpine steppe) and along environmental gradients(elevation, energy condition(annual mean temperature(AMT) and potential evapotranspiration(PET)), and mean annual precipitation(MAP)) based on a 2011–2013 survey of 379 sites in Xinjiang, Northwest *** SR and BGB varied among the grassland *** alpine steppe had a medium level of SR but the highest BGB in the top soil depth, whereas the lowland meadow had the lowest SR but the highest BGB in the middle and deep soil *** SR and BGB in the different soil depths were tightly associated with elevation, MAP and energy condition;however, the particular forms of trends in SR and BGB depended on environmental factors and soil *** relationship between SR and BGB was unimodal in the top soil depth, but SR was positively related with BGB in the middle soil *** elevation, MAP, energy condition and SR had significant effects on BGB, the variations in BGB in the top soil depth were mostly determined by elevation, and those in the middle and deep soil depths were mainly affected by energy *** findings highlight the importance of environmental factors in the regulations of SR and BGB as well as their interaction in the grasslands in Xinjiang.

关键词： species richness belowground biomass unimodal pattern energy condition soil depths mean annual precipitation grasslands in Xinjiang

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Association between Mean Ocular Perfusion Pressure and Diabetic Retinopathy in a Northeastern Chinese Population

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Biomedical and Environmental Sciences 2020年第9期33卷 701-707页

作者： ZHAI Gang LIN zhong WANG Feng Hua WANG Yu LI Dong WEN Liang DING Xiao Xia jiang Jing FENG Ke Mi LIANG Yuan Bo XIE Cong Fushun Eye Hospital Fushun 113006LiaoningChina School of Ophthalmology&Optometry Wenzhou Medical UniversityEye Hospital of Wenzhou Medical UniversityWenzhou 325035ZhejiangChina Beijing Tongren Eye Center Beijing Tongren HospitalCapital Medical UniversityBeijing Ophthalmology&Visual Science Key LabBeijing 100730China

Objective To evaluate the association between diabetic retinopathy(DR) and mean ocular perfusion pressure(MOPP) in patients with type 2 diabetes mellitus(T2 DM).Methods Patients from the Fushun Diabetic Retinopathy Cohort Study(FS-DIRECT), a communitybased prospective cohort study conducted in northeast China, were included in this study. The presence and severity of DR were determined by grading fundus photographs according to the Early Treatment Diabetic Retinopathy Study(ETDRS) retinopathy scale. Systolic and diastolic blood pressure(SBP and DBP) were recorded using an electronic sphygmomanometer. Intraocular pressure(IOP) was measured using an iCare rebound tonometer. MOPP was calculated using the formula MOPP = 2/3 [DBP + 1/3(SBP-DBP)]-*** In total, 1,857 patients who had gradable fundus photography and MOPP data were enrolled in this study. Male patients had a higher MOPP than female patients(52.25 ± 8.75 vs. 50.96 ± 8.74 mmHg, P = 0.002). Overall, both male and female patients with any type of DR, non-proliferative DR(NPDR), or non-sight-threatening DR(non-STDR) had significantly higher MOPP relative to patients without DR. Increased MOPP(per 1 mmHg) was in turn associated with the presence of any type of DR[odds ratio(OR) = 1.03, 95% confidence interval(CI) : 1.02–1.04], NPDR(OR = 1.03 95% CI: 1.02–1.04),and non-STDR(OR = 1.03, 95% CI: 1.01–1.04) after adjusting for confounders. Increased MOPP(per 1 mmHg) was also associated with an increased likelihood of macular edema(OR = 1.02, 95% CI:1.01–1.04).Conclusions The results suggest that increased MOPP was associated with DR and macular edema in northeastern Chinese patients with T2 DM.

关键词： Diabetic retinopathy Ocular perfusion pressure Systolic blood pressure Diastolic blood pressure

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Protein-spatiotemporal partition releasing gradient porous scaffolds and anti-inflammatory and antioxidant regulation remodel tissue engineered anisotropic meniscus

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Bioactive Materials 2023年第2期20卷 194-207页

作者： Bingbing Xu Jing Ye Bao-Shi Fan Xinjie Wang Ji-Ying Zhang Shitang Song Yifan Song Wen-Bo jiang Xing Wang jia-Kuo Yu Sports Medicine Department Beijing Key Laboratory of Sports InjuriesPeking University Third HospitalNo.49North Garden RoadHaidian DistrictBeijing 100191PR China Peking University Institute of Sports Medicine No.49North Garden RoadHaidian DistrictBeijing 100191PR China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Polymer Physics&ChemistryInstitute of ChemistryChinese Academy of SciencesBeijing100190PR China University of Chinese Academy of Sciences Beijing100049PR China Clinical Translational R&D Center of 3D Printing Technology Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011PR China

Meniscus is a wedge-shaped fibrocartilaginous tissue,playing important roles in maintaining joint stability and *** injuries are difficult to heal and frequently progress into structural breakdown,which then leads to *** of heterogeneous tissue engineering meniscus(TEM)continues to be a scientific and translational *** morphology,tissue architecture,mechanical strength,and functional applications of the cultivated TEMs have not been able to meet clinical needs,which may due to the negligent attention on the importance of microenvironment in vitro and in ***,we combined the 3D(three-dimensional)-printed gradient porous scaffolds,spatiotemporal partition release of growth factors,and anti-inflammatory and anti-oxidant microenvironment regulation of Ac2-26 peptide to prepare a versatile meniscus composite scaffold with heterogeneous bionic structures,excellent biomechanical properties and anti-inflammatory and anti-oxidant *** observing the results of cell activity and differentiation,and biomechanics under anti-inflammatory and anti-oxidant microenvironments in vitro,we explored the effects of anti-inflammatory and anti-oxidant microenvironments on construction of regional and functional heterogeneous TEM via the growth process regulation,with a view to cultivating a high-quality of TEM from bench to bedside.

关键词： Tissue engineering meniscus Gradient porous scaffolds Spatiotemporal partition release Ac2-26 peptide Anti-inflammatory and anti-oxidant regulation

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THE　BIRCH　REDUCTION　OF（1－OXO－CYCLOHEXENYLO）－2＇－［2＇，3＇，b］－6，7－MEHYLENEDIOXYBENZOZEPINE

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Chinese Chemical Letters 1994年第11期5卷 925-926页

作者： jiang Hong WANG Yun Zhen jiang Zhi zhong ZHAO (Institute of Hateria Hedica Chinese Academy of Medical Sciences Beijing 100050)

As the result of Birch Reaction of(1'-oxo-cyclohexenylo)-2'-[2',3',b]-6 ,7 methylenedioxy bonzozepine,the cleavage of one of the phenolic ether bond of the methylenedioxy group was observed and the monohydroxy substit... 详细信息

关键词： OXO REDUCTION BIRCH MEHYLENEDIOXYBENZOZEPINE OF CYCLOHEXENYLO

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某车型发电机低温下异响的分析及改善优化

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内燃机与配件 2024年第3期 72-74页

作者：高峰刘后发李珊珊孙百重刘爽何家栋浙江吉利动力总成有限公司浙江宁波315336 宁波吉利罗佑发动机零部件有限公司浙江宁波315336

随着汽车行业的不断创新发展,新技术不断的应用,乘用车驾乘感受及行驶品质都有了质的提升,消费者开始对乘用车的驾乘舒适性及整体NVH性能要求不断提高。发电机作为给车辆提供持续供电及给蓄电池充电的部件,需要与发动机同时工作,发电机... 详细信息

随着汽车行业的不断创新发展,新技术不断的应用,乘用车驾乘感受及行驶品质都有了质的提升,消费者开始对乘用车的驾乘舒适性及整体NVH性能要求不断提高。发电机作为给车辆提供持续供电及给蓄电池充电的部件,需要与发动机同时工作,发电机的NVH直接会影响到客户的感受。发电机作为功率转换器件,NVH多样化有磁场噪音、机械噪音、风噪等多种噪音,并且影响发电机噪音的零件和各种设计参数涉及面较广,转子、定子、端盖、风扇、轴承、电磁参数等等。本文针对某新车型在低温时出现发电机噪音问题的产生机理及影响因素进行分析,通过对发电机硬件的优化,结合发电机工作过程中的NVH噪声测试、主观试驾评审,研究了发电机轴承油脂对噪音的影响。最终通过优化轴承油脂低温粘度的大小,解决发电机低温异响问题。

关键词：发电机异响轴承轴承油脂

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First-and second-order phase transitions in RE_(6)Co_(2)Ga(RE=Ho,Dy or Gd)cryogenic magnetocaloric materials

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Science China Materials 2021年第11期64卷 2846-2857页

作者： Dan Guo Luis M.Moreno-Ramírez Carlos Romero-Muñiz Yikun Zhang jia-Yan Law Victorino Franco jiang Wang zhongming Ren State Key Laboratory of Advanced Special Steels Shanghai Key Laboratory of Advanced FerrometallurgySchool of Materials Science and EngineeringShanghai UniversityShanghai 200072China Departamento de Física de la Materia Condensada ICMS-CSICUniversidad de SevillaP.O.Box 1065Sevilla 41080Spain Department of Physical Chemical and Natural SystemsUniversidad Pablo de OlavideSevilla E-41013Spain Departamento de Física Aplicada I Universidad de SevillaSevilla E-41012Spain

Rare-earth(RE)rich intermetallics crystallizing in orthorhombic Ho_(6)Co_(2)Ga-type crystal structure exhibit peculiar magnetic properties that are not widely reported for their magnetic ordering,order of magnetic phase transition,and related magnetocaloric *** tuning the type of RE element in RE_(6)Co_(2)Ga(RE=Ho,Dy or Gd)compounds,metamagnetic anti-to-paramagnetic(AF to PM)phase transitions could be tuned to ferro-to-paramagnetic(FM to PM)phase ***,the FM ground state for Gd_(6)Co_(2)Ga is confirmed by density functional theory calculations in addition to experimental *** field dependence magnetocaloric and Banerjee’s criteria demonstrate that Ho_(6)Co_(2)Ga and Dy_(6)Co_(2)Ga undergo a first-order phase transition in addition to a second-order phase transition,whereas only the latter is observed for Gd_(6)Co_(2)*** two extreme alloys of the series,Ho_(6)Co_(2)Ga and Gd_(6)Co_(2)Ga,show maximum isothermal entropy change(|ΔS_(iso)^(max)(5T)|)of 10.1 and 9.1 J kg^(-1)K^(-1)at 26 and 75 K,close to H_(2)and N_(2)liquefaction,*** outstanding magnetocaloric effect performance makes the RE6 Co_(2)Ga series of potential for cryogenic magnetic refrigeration applications.

关键词： RE6Co2Ga compounds magnetic phase transitions magnetocaloric effect rare-earth

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智能审批技术在工程建设规划许可工作中的应用

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智能城市 2024年第5期10卷 48-50页

作者：许丹莹吴卫黄玲师浩辰时新华骆荣桂钟家晖广州市规划和自然资源自动化中心广东广州510030 华南理工大学建筑学院/亚热带建筑科学国家重点实验室广东广州510641 广州城市规划技术开发服务部有限公司广东广州510030

文章从制度建设、标准建设和系统建设3个方面提出了实施智能审批的思路,以广州市规划和自然资源局为例,介绍了在差异化分类审批制度设计、数据标准建设和智能报批系统开发三方面采取的关键技术,总结出在建设工程规划领域开展智能审批的... 详细信息

文章从制度建设、标准建设和系统建设3个方面提出了实施智能审批的思路,以广州市规划和自然资源局为例,介绍了在差异化分类审批制度设计、数据标准建设和智能报批系统开发三方面采取的关键技术,总结出在建设工程规划领域开展智能审批的实施路径。

关键词：工程建设许可智能审批自动计算机器审查

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The Study on Integrated Risk Management of Chinese Commercial Banks

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Chinese Business Review 2004年第1期3卷 54-61页

作者： Xiaoxia jia Naiding Yang Julao jiang School Northwestern Polytechnical University Xi＇an 710072 School Northwestern Polytechnical University

Integrated risk management becomes gradually mainstream in worldwide. With China being a member of WTO, it put forward a higher requirement for risk management of Chinese commercial banks. So, it＇s of theoretical and practical meaning to study the integrated risk management of Chinese commercial banks. Under the guidance of integrated risk management, it pointed out the identification scope, analysis methods and systematic control strategies of risk management in Chinese commercial banks.

关键词： Risk Management Integrated Risk Management Commercial Bank Risk Control

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佛坪国家级自然保护区自然教育现状与发展分析

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陕西林业科技 2024年第3期52卷 121-124,129页

作者：冀晓丽陈原玉曹庆李涛李杰刘坤贾琦淡中豪陕西佛坪国家级自然保护区陕西佛坪723400

为推动佛坪国家级自然保护区自然教育有序、健康发展,对该保护区自然教育的自然环境、教育条件、发展特点、现状与问题等进行了分析研究。表明:(1)佛坪保护区自然教育条件好,其生物多样性丰富,大熊猫种群密度高,自然环境样板性强,可转... 详细信息

为推动佛坪国家级自然保护区自然教育有序、健康发展,对该保护区自然教育的自然环境、教育条件、发展特点、现状与问题等进行了分析研究。表明:(1)佛坪保护区自然教育条件好,其生物多样性丰富,大熊猫种群密度高,自然环境样板性强,可转化为自然教育产品的科研成果多,生态与文化底蕴深厚,社区共管机制成熟,管理机关交通便利;(2)因为拥有得天独厚的自然教育优势,自然教育工作取得了很好的成绩,其中展现出以借助自然教育机构的活动模式为主,面向中小学生的小体量团体和以“体验巡护员的一天”为主要课程的特点。针对现状和存在问题,佛坪国家级自然保护区自然教育可采取如下策略:整合资源,打造佛坪保护区特色的自然教育品牌课程;内外驱动,加强人才队伍建设;加强顶层设计,利用硬实力、提升软实力;控制入区访客数量,建立反馈机制;把握机遇,联动社区等多方协作。希望通过研究,为未来佛坪保护区自然教育的发展提供借鉴。

关键词：佛坪国家级自然保护区自然教育条件自然环境策略

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Treating peripheral nerve injury-induced spinal cord degeneration and neuropathic pain with peripherally administrated stem cells

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Neural Regeneration Research 2023年第3期18卷 537-538页

作者： Zihui Wang Xiaofeng jia Department of Neurosurgery University of Maryland School of Medicine Department of Orthopedics Anatomy and NeurobiologyUniversity of Maryland School of Medicine Department of Biomedical Engineering Anesthesiology and Critical Care MedicineJohns Hopkins University School of MedicineBaltimoreMDUSA

Peripheral nerve injury(PNI)causes sensory and motor deficits as well as neuropathic pain,which seriously impacts patient quality of life(jiang et al.,2017).Morphological and molecular changes in the spinal cord and dorsal root ganglia(DRG),such as neuronal cell death,nerve fiber degeneration,and glial activation,are strongly associated with PNI-induced pathological syndromes.

关键词： degeneration pain Morphological

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