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Highly Stable Silicon–Carbon–Nitrogen Composite Anodes from Silsesquiazane for Rechargeable lithium-Ion Battery

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journal of Materials Science & Technology 2016年第3期32卷 195-199页

作者： Yong Seok Kim Yong l.joo Young-je Kwark School of Chemical & Biomolecular Engineering Cornell University Department of Organic Materials and fiber Engineering Soongsil University

Herein, we developed novel silicon-carbon-nitrogen （SiCN） composites synthesized by pyrolyzing silsesquiazane polymer as an anode material for rechargeable lithium-ion batteries. Among variable pyrolysis temperatures of 700 ℃, 1000 ℃ and 1300 ℃, the SiCN composites prepared at 1000 ℃ showed the highest capacity with outstanding battery cycle life by cyclic voltammetry and electrochemical impedance spectroscopy. Such good battery and electrochemical performances should be attributed to a proper ratio of carbon and nitrogen or oxygen in the SiCN composites. furthermore, our SiCN electrode possessed better lithium ion conductivity than pure silicon nanoparticles. This work demonstrates that polymer-derived composites are among the promising strategies to achieve highly stable silicon anodes for rechargeable batteries.

关键词： Polymer-derived ceramics Silsesquiazane lithium ion battery lithium ion conductivity

Synthesis and Stereochemistry of New Cyclic Phosphate-phosphonates

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Chinese Chemical letters 1997年第1期8卷 11-12页

作者： Zhou, j Chen, RY NANKAI UNIV NATL KEY LAB ELEMENTOORGAN CHEMINST ELEMENTOORGAN CHEMTIANJIN 300071PEOPLES R CHINA

The novel cyclic phosphate-phosphqnates,cis/trans-2-phosp dimethyl-1,3,2-dioxaphosphorinane 2-sulfides(selenides) (7a-f),were synthesized by a one-pot reaction using tris(diethviamino)phosphine activated by iodine as the phosphorylating and ring-closing reagent in good overall yields. The geometric stereoisomers were isolated and characterized. A cis-configuration and a chair preferred conformation of one isomer of 7b were established by X-ray diffraction analysis.

关键词： Synthesis and Stereochemistry of New Cyclic Phosphate-phosphonates

Surface Nanocrystallization (SNC) of Metallic Materials-Presentation of the Concept behind a New Approach

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journal of Materials Science & Technology 1999年第3期15卷 193-197页

作者： lu, K lu, j Chinese Acad Sci Met Res Inst State Key Lab RSA Shenyang 110015 Peoples R China Univ Technol Troyes LASMIS F-10000 Troyes France

In this paper, a concept of surface nanocrystallization (SNC) of metallic materials is introduced. Three types of SNC processes are classified. Different SNC mechanisms and possible techniques for SNC are discussed with emphasis on mechanically induced surface self-nanocrystallization. further development and prospects are addressed with respect to the properties and behaviors of the materials with a nanocrystalline surface. Enhancement of the behavior of the engineering materials by means of the SNC technology and its industrial application possibilities are analyzed.

关键词： SNC of Metallic Materials-Presentation of the Concept behind a New Approach figure

Modern genetic analysis / Edition

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Multistage exhumation and partial melting of high-T ultrahigh-pressure metamorphic rocks in continental subduction-collision zones

1999年

作者： Griffiths Anthony j. f.

本书演示了生物化学实验中仪器设备的正确使用、实验装置的科学搭建和规范操作等实验环节。全书精选了12个实验,内容涵盖糖、脂、蛋白质、核酸和酶等领域。

ISBN: (纸本)0716735970

关键词： Molecular genetics.

来源：畅想之星图书光盘版（南... 评论

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Science China Earth Sciences 2015年第6期58卷 1084-1099页

作者： lIU Yi Can DENG liangPeng GU Xiaofeng CAS Key laboratory of Crust-Mantle Materials and Environments School of Earth and Space SciencesUniversity of Science and Technology of China

High-temperature(HT, >850℃) metamorphism in continental collision orogens, particularly for those ultrahigh-pressure(UHP) metamorphic rocks, has become one of the remarkable topics in Earth science. It has bearing on the element and isotope behaviors of UHP rocks, their partial melting and related geodynamic effects during exhumation. In this paper, five representative continental collision orogens with typical HT/UHP rocks, including the Dabie orogen in China, the Kokchetav in Kazakhstan, the Caledonides in Greenland, the Rhodope in Greece, and the Erzgebirge in Germany are introduced, and their HT/UHP metamorphism and evolution processes are summarized. In addition, metamorphic P-T-t paths, multistage exhumation processes, and partial melting and preservation and retrogression of UHP index minerals during exhumation and their possible mechanisms are discussed. On this basis, the forthcoming key fields and scientific subjects of HT/UHP rocks within continental subduction channel are proposed.

关键词： continental subduction-collision zone high-T ultrahigh-pressure rock P-T-t path multistage exhumation partial melting

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full Scale SBR Municipal Wastewater Treatment facility Utilization of Simultaneous Nitrification/Denitrification Coupled with Traditional Nitrogen Removal to Meet Water Criterion

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Green and Sustainable Chemistry 2022年第2期12卷 41-56页

作者： Charlie l. Martin jr. Clayton j. Clark II City Engineer Graceville FL USA Department of Civil and Environmental Engineering Florida A&M University Tallahassee FL USA

Simultaneous nitrification denitrification (SND) is a well-established phenomenon in biological nutrient removal activated sludge systems. Study at a municipal wastewater treatment facility sought to determine nitrogen removal effectiveness within a full-scale sequential batch reactor (SBR) system utilizing SND in conjunction with traditional nitrogen removal. In addition to characterizing extent of SND, the research examined the ability of SND to meet state-based effluent water quality standards. At the selected facility, the average SND efficiency during a two-month sampling period was 52.8%, paralleling results from similar SBR municipal wastewater systems. The observed SBR system had removal efficiencies > 99% for the influent to effluent -N concentrations. The SND process also resulted in average NO3-NO2-N concentration that was 82% lower than the theoretical concentration under comparable circumstances. Overall, nitrogen removal for this SBR system was >99% which typified results in other SND systems, but at a higher Total Nitrogen removal rate.

关键词： Nitrification Denitrification Chemical Oxygen Demand (COD) Sequential Batch Reactor Municipal Wastewater

欧洲心血管病一级预防中对血压控制的欠缺：欧洲心血管事件风险日常防范与管理研究结果

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中华高血压杂志 2016年第7期24卷 682-684页

作者： Borghi C Tubach f De Backer G Dallongeville j Guallar E Medina j Perk j Roy C Banegas jR Rodriguez-Artalejo f Halcox jP 黄邦邦 Department of Internal Medicine Ageing and Clinical Nephrology University of Bologna Bologna Italy Italy INSERM CIC-EC 1425 and Département d'Epidemiologie et Recherche Clinique Assistance Publique-Hopitaux de Paris Hopital Bichat Paris France Université Paris Diderot UMR 1123 ECEVE Paris France France Department of Public Health University of Ghent Ghent Belgium Belgium INSERM U 744 Institut Pasteur de Lille Université Lille-Nord de France France Departments of Epidemiology and Medicine and Welch Center of Prevention Epidemiology and Clinical Research Johns Hopkins Bloomberg School of Public Health Baltimore MD USA USA Medical Evidence and Observational Research AstraZeneca Madrid Spain Spain faculty of Health and Caring Sciences Linnaeus University Kalmar Sweden Sweden INSERM CIC-EC 1425 and Département d'Epidemiologie et Recherche Clinique Assistance Publique-Hopitaux de Paris Hopital Bichat Paris France France Department of Preventive Medicine and Public Health School of Medicine Universidad Autónoma de Madrid/IdiPaz and CIBER of Epidemiology and Public Health (CIBERESP) Madrid Spain Spain Institute of life Sciences 2 Swansea University College of Medicine Swansea UK UK

尽管近年来欧洲心血管病的死亡率有所下降,但每年约47%的死亡仍由心血管病引起。因此,心血管病的一级和二级预防十分重要。发生心血管事件的首要危险因素包括年龄、性别、吸烟、动脉高血压、血脂异常、糖尿病、肥胖及缺乏锻炼。

关键词：心血管病二级预防一级预防血脂异常敏感性分析控制率血清尿酸水平代谢综合征危险评估钙拮抗剂

Plant growth and nutrient use efficiency of two native fabaceae species for mineland revegetation in the eastern Amazon

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journal of forestry Research 2020年第6期31卷 2287-2293页

作者： Silvio j.Ramos Markus Gastauer Simone K.Mitre Cecı´lio f.Caldeira joyce R.Silva Antonio E.furtini Neto Guilherme Oliveira Pedro W.M.Souza filho jose´O.Siqueira Instituto Tecnolo´gico Vale Rua Boaventura da Silva955Belem 66055-090Brazil Departamento de Ciencia do Solo Universidade Federal de LavrasLavras 37200-000Brazil

The primary challenge of mineland revegetation is the establishment of species able to cope with low availability of nutrients,especially in steep slopes such as of mine *** evaluated plant growth response and nutrient use efficiency(NUE)of two promising native fabaceae species(Dioclea apurensis—liana from metalliferous savannas;Bauhinia longipedicellata—tree from Amazon rainforest)from the Caraja´s Mineral Province,eastern *** were grown separately in 2-kg pots filled with mining *** were fertilized with nitrogen,phosphorus,potassium(NPK),lime,and *** results showed increments on growth of both species when nutrients were applied to the mining *** showed increases in leaf area,plant height,stem diameter,and shoot dry mass production when NPK or NPK?micronutrients were applied,while *** was responsive to application of NPK?lime or NPK?lime?***,*** showed higher NUE than ***,especially at the lowest doses of N,P and *** findings may indicate a substantial advantage of *** for mineland revegetation,as this species may require lower nutrient inputs,being,therefore,a more sustainable way to revegetate degraded areas.

关键词： fertilizer application Mining soil Tropical forest Nutrient use efficiency

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应用自动圆锥仪对土壤压实的试验研究

华南农业大学学报 1996年第3期17卷 7-11页

作者：洪添胜 j.f.Bilot A.Marionneau 华南农业大学工程技术学院法国国家农业机械乡村工程水利和森林研究中心

在实验土槽中，用法国国家农业机械、乡村工程、水利和森林研究中心（Ｃｅｍａｇｒｅｆ）的自动圆锥仪测量经胎轮压实前后的土壤坚实度，进而分析胎轮的充气压力、胎轮上的驱动扭矩、胎轮上的载荷以及胎轮的通过次数对土壤压实的影响。... 详细信息

在实验土槽中，用法国国家农业机械、乡村工程、水利和森林研究中心（Ｃｅｍａｇｒｅｆ）的自动圆锥仪测量经胎轮压实前后的土壤坚实度，进而分析胎轮的充气压力、胎轮上的驱动扭矩、胎轮上的载荷以及胎轮的通过次数对土壤压实的影响。此研究为正确地使用胎轮、合理地配备农机具以及为研制新型的农用胎轮，从而达到减少农田土壤的压实提供了指导。

关键词：土壤压实自动圆锥仪充气胎轮