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Permian Radiolarians from the A'nyemaqen Mélange Zone in the Huashixia Area of Madoi County,Qinghai Province,Western China,and Their Implications on Regional Tectonism

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Journal of Earth Science 2016年第4期27卷 623-630页

作者： zhigang zhao Xing Huang Xionghua Zhang Bing Yang Zhong-Qiang Chen Fuhao Xiong School of Earth Sciences China University of GeosciencesWuhan 430074China State Key Laboratory of Biogeology and Environmental Geology China University of GeoscieneesWuhan 430074China The 7th Gold Detachment of Chinese Armed Police Force Yantai 264004China Material Geological Data Center Ministry of Land and ResourcesLangfang 065201China

The Huashixia area in the Madoi County, Qinghai Province, western China is one of the most important areas for the studies of the formation and evolution of the A＇nyemaqen mélange zone due to the well exposed, relatively complete tectonostratigraphic successions. However, the timing and evolutionary process of the A＇nyemaqen paleo-ocean has long been poorly understood. Recently, we obtained abundant radiolarians from the siliceous rocks of the Maerzheng Formation of this mélange zone in Huashixia. Total 19 species in 10 radiolarian genera have been identified. They belong mainly to the Albaillellaria, Spumellaria, Entactinaria, and Latentifistularia. Four radiolarian assemblage zones are established, including： the Pseudoalbaillella rhombothoracata, Pseudoalbaillella scalprata, Ruzhencevispongus uralicus, and Follicucullus bipartitus-Follicucullus sp. cf. F. ventricosus zones. Radiolarian faunal correlations suggest a late Artinskian-early Kungurian age and late Capitanian-early Wuchiapingian age for the first two zones from the lower part and the last two zones from the upper parts of the Maerzheng Formation, respectively. All radiolarians are typical of deep water elements living in deep oceans in low latitudes during the Permian. Previously, the radiolarians of Early Carboniferous to Early Permian age and fusulinids of Early-Middle Permian age have also been reported from the A＇nyemaqen mélange successions. The combination of the newly found radiolarians with the previously reported faunal and microfloral assemblages as well as radiometric ages obtained from the same stratigraphic units indicates that the A＇nyemaqen paleo-ocean may have opened initially during the Early Carboniferous, expanded from the Early-Middle Permian, reached its acme in the early Late Permian, shrunk during the latest Permian to Early Triassic, and eventually was closed in the Middle Triassic.

关键词： Maerzheng Formation Permian A'nyemaqen paleo-ocean Qinghai-Tibetan Plateau.

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质量相近的捣固焦与顶装焦高温耐压强度研究

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燃料与化工 2024年第3期55卷 24-28页

作者：陈吉洪泽凌强赵志刚崔平安徽工业大学冶金工程学院马鞍山243000 “煤清洁转化与高值化利用”安徽省重点实验室马鞍山243000 湖南涟源钢铁集团娄底417000

在实验室条件下,研究了不同失重率的焦炭高温耐压强度变化,考察了焦炭溶损反应前后顶装焦和捣固焦的孔径分布变化与深层反应对焦炭高温耐压强度的影响。结果表明,随着溶损反应程度的增加,焦炭的高温耐压强度下降;相较于顶装焦,溶损反应... 详细信息

在实验室条件下,研究了不同失重率的焦炭高温耐压强度变化,考察了焦炭溶损反应前后顶装焦和捣固焦的孔径分布变化与深层反应对焦炭高温耐压强度的影响。结果表明,随着溶损反应程度的增加,焦炭的高温耐压强度下降;相较于顶装焦,溶损反应后捣固焦的气孔宽度变窄,分布不均匀,并且深层反应较大,结构破坏严重,高温耐压强度降低幅度较大。

关键词：焦炭溶损反应高温耐压强度气孔结构

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Facile one-pot synthesis of superfine palladium nanoparticles on polydopamine-functionalized carbon nanotubes as a nanocatalyst for the Heck reaction

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Journal of Materials Science & Technology 2021年第23期82卷 197-206页

作者： Zhengxiu Luo Ning Wang Xiaoyan Pei Tao Dai zhigang zhao Congmei Chen Maofei Ran Wenjing Sun College of Chemistry&Environment Protection Engineering Southwest Minzu UniversityChengdu610041China China-America Cancer Research Institute Key Laboratory for Medical Molecular Diagnostics of Guangdong ProvinceGuangdong Medical UniversityDongguanGuangdong523808China Advanced Membranes and Porous Materials Center Physical Sciences and Engineering DivisionKing Abdullah University of Science and Technology(KAUST)Thuwal23955-6900Saudi Arabia National Supercomputing Center in Shenzhen(Shenzhen Cloud Computing Center) GuangdongShenzhen518055China

Heterogeneous Pd nanocatalysts are efficient catalysts for the Heck reaction but require multi-step,sophisticated procedures and harsh reaction *** this work,a green and facile strategy has been developed to decorate Pd nanoparticles on polydopamine(PDA)-coated multi-walled carbon nanotubes(Pd/CNTs-PDA)via a one-pot *** obtained nanoparticles were characterized by various techniques including transmission electron microscopy,X-ray diffraction,and X-ray photoelectron spectroscopy,which proved that Pd NPs are well-dispersed on the PDA and between the surfaces of the PDA and *** resultant Pd/CNTs-PDA catalysts exhibit excellent catalytic reactivity toward the Heck reaction at low ***,by DFT simulation,we found that during the PDA polymerization process,a large number of unsaturated—N=and C=O species are more active than the groups on the PDA end product to anchor Pd *** results provide evidence that the catalyst synthesized by the onepot method exhibited good activity because sufficient active sites could be created to effectively promote Pd NPs dispersion during the dopamine polymerization ***,the Pd/CNTs-PDA catalyst was successfully employed in Heck cross-coupling reactions with various functionalized *** method opens a window for the fabrication of high-performance nanocomposite catalysts under mild conditions using simple methods and has several potential applications.

关键词： One-pot Pd/CNTs-PDA Palladium nanocatalyst Nanocomposites Heck reaction

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家庭药师对社区老年2型糖尿病患者自我行为管理及药物依从性调查研究

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中国药业 2024年第13期33卷 30-34页

作者：殷雪梅赵志刚武明芬首都医科大学附属北京天坛医院北京100070 北京市丰台区成寿寺街道社区卫生服务中心北京100079

目的从家庭药师视角分析老年2型糖尿病(T2DM)患者自我行为管理与药物依从性的主要影响因素,为居家药学服务及药物依从性管理提供参考。方法选取在北京市丰台区成寿寺街道社区卫生服务中心建立健康档案并签约就诊的老年T2DM患者,以面对... 详细信息

目的从家庭药师视角分析老年2型糖尿病(T2DM)患者自我行为管理与药物依从性的主要影响因素,为居家药学服务及药物依从性管理提供参考。方法选取在北京市丰台区成寿寺街道社区卫生服务中心建立健康档案并签约就诊的老年T2DM患者,以面对面或电话访谈的方式开展问卷调查,采用糖尿病自我行为管理量表(SDSCA-6)和药物治疗依从性量表(MMAS-8)评估患者的自我行为管理与药物依从性。结果共发放调查问卷372份,有效回收330份,有效回收率为88.71%。单因素分析结果显示,服药数量越多不合理用药发生频率越高(P<0.001);受教育程度对是否定期监测血糖有显著影响,高中学历较初中及以下学历的患者更能规律监测血糖(P=0.033);糖尿病病程对饮食习惯有显著影响,病程越长的患者饮食习惯越好(P=0.048);体质量指数(BMI)越大的患者每周规律运动的天数越少(P=0.046);无过敏史患者的运动习惯越好(P=0.025)。结论自我行为管理可提高老年T2DM患者的药物依从性。家庭药师居家药学服务应重点关注服药数量多、学历低、病程短、BMI大的患者,以提升其血糖控制效果。

关键词：老年 2型糖尿病自我行为管理药物依从性家庭药师

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Meromorphic Functions Sharing Two Values

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Wuhan University Journal of Natural Sciences 2024年第1期29卷 7-12页

作者： zhao Ying HUANG zhigang School of Mathematical Sciences Suzhou University of Science and TechnologySuzhou 215009JiangsuChina

Let f and g be two nonconstant meromorphic functions,and n be a positive *** f^(n)(z)and g^(n)(z)share 1 CM(counting multiplicities),f(z)and g(z)share∞IM(ignoring multiplicities),and N(r,1f)+N(r,1g)=S(r,f)+S(r,g),then either f(z)≡tg(z)or f(z)g(z)≡t,where t^(n)=*** an application,shared values problems of a meromorphic function related to its shifts and difference operators are also investigated.

关键词： meromorphic function shared values difference operator shift

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Growth and nutrient dynamics of Betula alnoides seedlings under exponential fertilization

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Journal of Forestry Research 2018年第1期29卷 111-119页

作者： Lin Chen Chunsheng Wang Bernard Dell zhigang zhao Junjie Guo Daping Xu Jie Zeng The Experimental Center of Tropical Forestry Chinese Academy of Forestry Research Institute of Tropical Forestry Chinese Academy of Forestry Division of Research and Development Murdoch University

Betula alnoides is a fast-growing hardwood species grown in large plantations in Southeast Asia and South *** requirements for producing robus seedlings,growth and nutrient dynamics were investigated using exponential fertilization *** collar diameter,height,dry mass and nutrient contents of seedlings increased exponentially in all fertilization treatments as time ***,with water soluble fertilizer（Plant Products plus microelements N–P2O5–K2O：20–20–20）,300 mg N seedling-1was *** analysis revealed that P was the most responsive nutrient element followed by N and *** of N and K were evident in the plants without N addition,which induced initial P sufficiency and then luxury consumption probably due to the antagonistic interaction between N and *** deficiencies of N,P and K were mostly observed in al exponential regimes during the experiment because seedling growth rate exceeded nutrient uptake rate,inferring that further study on improving the nutrient uptake efficiency is *** of relationships among nutrient supply,dry mass,N content and N concentration demonstrated that 100–400 mg N seedling-1induced sufficiency to luxury consumption of nitrogen without significant change in dry mass,and 400 mg N seedling-1is recommended to apply for nutrient loading of seedlings before *** findings will help improve seedling quality and enhance the production of robust seedlings for plantation forestry of this species.

关键词： Betula alnoides Growth performance Luxury nutrient consumption Nitrogen requirement Vector analysis

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Optics-driven drone

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Science China(Information Sciences) 2024年第2期67卷 322-324页

作者： Xuelong LI Guan HUANG zhigang WANG Bin zhao School of Artificial Intelligence OPtics and Electro Nics (iOPEN)Northwestern Polytechnical University Shanghai Artificial Intelligence Laboratory

In the field of vicinagearth security, low-altitude flying vehicles such as drones play an indispensable role in aerial remote sensing, intelligent search and rescue, etc. [1]. It can be foreseen that the autonomous and intelligent execution of complex tasks by drones is an inevitable trend for future development.

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基于循证证据的晶体液和胶体液选择

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临床药物治疗杂志 2024年第6期22卷 1-5页

作者：郭姗姗刘小会李草赵志刚首都医科大学附属北京天坛医院药学部北京100070 国家儿童医学中心首都医科大学附属北京儿童医院药学部北京100045

液体治疗是重症患者常用的治疗手段,然而晶体液和胶体液的选择一直存在争议。本文从晶体液和胶体液的种类、临床应用和液体类型选择3个方面进行综述,以期为重症患者液体复苏提供指导。重症患者液体复苏首选醋酸钠林格液等平衡盐晶体液,... 详细信息

液体治疗是重症患者常用的治疗手段,然而晶体液和胶体液的选择一直存在争议。本文从晶体液和胶体液的种类、临床应用和液体类型选择3个方面进行综述,以期为重症患者液体复苏提供指导。重症患者液体复苏首选醋酸钠林格液等平衡盐晶体液,不推荐使用羟乙基淀粉和明胶。脑外伤或神经重症患者不推荐使用白蛋白维持治疗。

关键词：晶体液胶体液液体治疗醋酸钠林格液

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绕组压紧力对变压器油箱振动特性影响的有限元分析

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变压器 2024年第3期61卷 45-51页

作者：周红军赵志刚张亚东马玮国网江苏省电力有限公司盐城供电分公司江苏盐城224005

为了研究油浸式变压器箱体表面的振动特性,以及绕组压紧力对变压器油箱振动特性的影响,本文利用磁固耦合有限元方法进行了建模仿真。以一台110kV油浸变压器作为对象建立三维几何模型,进行磁场-结构力场的耦合仿真,计算分析了变压器油箱... 详细信息

为了研究油浸式变压器箱体表面的振动特性,以及绕组压紧力对变压器油箱振动特性的影响,本文利用磁固耦合有限元方法进行了建模仿真。以一台110kV油浸变压器作为对象建立三维几何模型,进行磁场-结构力场的耦合仿真,计算分析了变压器油箱各处、各方向振动特性,比较了不同绕组压紧力对变压器油箱振动特性的影响,得出了变压器油箱振动信号的时、空、频特性。结果表明,油箱振动信号波形呈周期性变化,油箱正面Y方向振动最为明显,振动幅值最大可达1.0566mm;绕组压紧力增大会导致油箱振动幅值增大。本文研究可为变压器油箱振动特性研究提供理论和数据支持。

关键词：油浸变压器绕组压紧力油箱振动有限元分析磁固耦合

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A Usable Selection Range Standard Based on Test Suite Reduction Algorithms

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Wuhan University Journal of Natural Sciences 2010年第3期15卷 261-266页

作者： MA Yanjun zhao zhigang LIANG Yuchen YUN Maojin College of Information Engineering Qingdao University Qingdao 266071 Shandong China College of Computing Blekinge Institute of Technology Karlskrona 37179 Blekinge Sweden College of Physics Science Qingdao University Qingdao 266071 Shandong China

In this paper, we analyze the features and distinctions of 6 classical algorithms： greedy algorithm （G）, greedy evolution algorithm （GE）, heuristics algorithm （H）, greedy heuristic G （GRE）, integer linear programming algorithm （ILP） and genetic algorithm （GA） to ensure the main influencing factors-the performance of algorithms and the running time of algorithms. What＇s more, we would not only present a research design that aims at gaining deeper understanding about the algorithm classification and its function as well as their distinction, but also make an empirical study in order to obtain a practical range standard that can guide the selection of reduction algorithms. When the size of a test object （product of test requirements and test cases） is smaller than 2000×2000, G algorithm is the commonly recommended algorithm. With the growth of test size, the usage of GE and GRE becomes more general.

关键词： test suite reduction algorithms influencing factor selection standard

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