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Evaluation of cold resistance of ornamental species for planting as urban rooftop greening

Forestry Studies in China 2011年第3期13卷 239-244页

作者： FAN Ping WANG kai-lin Tianjin Municipal Engineering Design ＆ Research Institute Tianjin 300051 P. R. China

Rooftop gardening or green roof establishment, one of the methods of afforestation for urban greening, has many benefits for the environment, the economy and urban landscapes. Various environmental stresses including heat, strong wind, sunshine and cold prevent most plants from growing well in extensive green roof systems. For the establishment of urban rooftop gardening in Beijing, we evaluated 13 ornamental plant species [Berberis thunbergii ‘Atropurea Nana’, Euonymus fortune （Turcz.） Hand., Viburnum dilatatum Thunb., Cotinus coggygria Scop., Swida alba Opiz., Weigela florida （Bunge.） A. DC., Jasminum nudiflorum lindl., Euonymus japonicus Thunb., Euonymus japonicus ‘Cuzhi’, Buddleja davidii Franch., Pyracantha fortuneana （Maxim.） Li., Ligustrum lucidum Ait. and Spiraea salicifolia L.] for greening of flat rooftops. We obtained three indices concerning cold resistance, i.e., electrical conductivity of leaves, amounts of soluble sugars and amounts of free proline, providing a theoretical basis for selection of plants fit for roof and balcony greening. The results show that the six species P. fortuneana （Maxim.） Li., B. thunbergii ‘Atropurea Nana’, J. nudiflorum lindl., E. fortune （Turcz.） Hand., E. japonicus Thunb. and E. japonicus ‘Cuzhi’ are excellent plants for rooftop gardening, judging from their strong ability in cold resistance. Plants such as L. lucidum Ait., C. coggygria Scop. and W. florida （Bunge） A. DC. showed a medium ability in cold resistance. However, these species can be used in roof and balcony greening after intensive management or acclimatization of variety. The ability to resist cold of plants such as W. florida （Bunge） A. DC., S. salicifolia L., V. rhytidophyllum and S. alba Opiz. （Cornus alba L.） was found to be rather weak. Therefore, cold-proof measures are recommended when using these species.

关键词： ornamental species green rooftop cold resistance electrical conductivity water-soluble sugars free proline

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Effect of Flexible Units on the Properties of Silicon-containing Phenyleneethynylene Hybrid Oligomers

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Chinese Journal of Polymer Science 2016年第1期34卷 52-58页

作者： Xian-kai lin Rui Wang Fan Zeng 李书宏徐彩虹 School of Science Beijing Technology andBusiness UniversityBeijing 100048China Institute of Chemistry Chinese'Academy of SciencesBeijing 100190China

New silicon-containing phenyleneethynylene hybrid oligomers P2, P3, and P4 were synthesized via Sonogashira cross-coupling reactions of ethynyl-terminated silazane monomer N,N′-bis（4-ethynylphenyl）-1,1-diphenylsilazane（M1） and corresponding bis-（4-bromo-phenyl）-ended organosilicon unit containing monomers, respectively. These new oligomers were easily soluble in common solvents. The incorporation of flexible organosilicon units in the oligomers leads to blue-shift in both the UV-Vis absorption and fluorescence emission spectra similarly. The results of differential scanning calorimetry（DSC） indicate that the flexible units relieve the rigidity of oligomeric chain and provide favorable conformation for thermal cross-linking reactions. The oligomers show good thermal and thermal-oxidative stability from the thermogravimetric analysis（TGA）, with their decomposition temperature at 10% weight loss（T10%） higher than 400 ？C under both nitrogen and air atmosphere.

关键词： Sonogashira cross-coupling Organosilicon unit Hybrid oligomers Thermal properties

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Bleeding of two lumbar arteries caused by one puncture following percutaneous nephrolithotomy:A case report

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World Journal of Clinical Cases 2020年第22期8卷 5790-5794页

作者： Qian Liu Chuan Yang kai lin Dong Yang Tumor and Interventional Radiology Hanchuan People’s HospitalHanchuan 432300Hubei ProvinceChina Urology Hanchuan People’s HospitalHanchuan 432300Hubei ProvinceChina Interventional Radiology Hanchuan People’s HospitalHanchuan 432300Hubei ProvinceChina

BACKGROUND Lumbar artery bleeding is an uncommon complication of percutaneous nephrolithotomy(PCNL).This report presents a rare complication where two lumbar arteries were injured by a single puncture following *** scarce reports of this complication have been *** SUMMARY A 24-year-old man presented with a 2.2 cm right renal calculus,which was managed by *** nephrostomy tube removal on the 6th postoperative day,intense bleeding was observed in the fistula and the *** angiography was undertaken immediately;however,an initial selective renal angiogram revealed no evidence of renal vascular *** of these injuries involved a pseudoaneurysm from a peripheral branch in the first right lumbar artery,while the other involved an arteriovenous fistula from a peripheral branch in the second right lumbar ***,coil embolization was performed *** This case is being reported to inform clinicians that lumbar artery damage is one of the causes of severe bleeding after PCNL and could involve damage of more than one artery.

关键词： Percutaneous nephrolithotomy Lumbar artery Pseudoaneurysm Arteriovenous fistula Embolization Case report

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非酒精性脂肪性肝病进程中低氧的作用及其机制研究进展

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生理科学进展 2024年第2期55卷 171-178页

作者：颜然然沈利娟林凯歌格日力白振忠青海大学高原医学研究中心西宁810001 青海大学高原医学教育部重点实验室西宁810001 青海大学医学院青海省高原医学应用基础重点实验室(青海-犹他高原医学联合重点实验室) 西宁810001 邯郸市第一医院呼吸与危重医学二科邯郸056000 青海大学附属医院消化内科西宁810001

非酒精性脂肪性肝病(non-alcoholic fatty liver disease,NAFLD)是全国范围内普遍发病的慢性非传染性肝脏疾病,也是肝硬化肝癌的前期阶段,严重威胁着人类健康。高原低氧条件下机体各器官系统受到不同程度影响,而肝脏组织缺氧程度进一步... 详细信息

非酒精性脂肪性肝病(non-alcoholic fatty liver disease,NAFLD)是全国范围内普遍发病的慢性非传染性肝脏疾病,也是肝硬化肝癌的前期阶段,严重威胁着人类健康。高原低氧条件下机体各器官系统受到不同程度影响,而肝脏组织缺氧程度进一步加重,呈现出高原地区NAFLD的患病率显著高于平原地区。目前NAFLD发病机制观点不一,而且高原低氧促进NAFLD进展机制尚不明确。本文从高原低氧对肝实质细胞和间充质细胞的影响角度入手,整合、梳理相关研究报道,并探索高原低氧在NAFLD慢性病进展中发生、发展的可能机制,为NAFLD的预防、诊治提供新思路。

关键词： NAFLD 低氧脂肪变性炎症纤维化进展

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Convenient synthesis of (4R,5R)-4,5-bis(aminomethyl)-2-isopropyl-1,3-dioxolane

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Chinese Chemical Letters 2007年第7期18卷 783-784页

作者： Jian Jiang De Cai Wang Wei lin Ping kai Ouyang College of Life Science and Pharmaceutical Engineering Nanjing University of Technology Nanjing 210009 China

A convenient approach for the preparation of （4R,5R）-4,5-bis（aminomethyl）-2-isopropyl-l,3-dioxolane is described. The target compound via two steps is synthesized from diethyl-2,3-O-isobutylidene-D-tartrate, throu... 详细信息

关键词： Heptaplatin Aminomethyl Intermediate Anticancer drug

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Performance analysis of ARQ schemes with code combining over Nakagami-m fading channel

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The Journal of China Universities of Posts and Telecommunications 2009年第5期16卷 14-19页

作者： XU Wen-bo NIU kai lin Jia-ru HE Zhi-qiang School of Information and Telecommunication Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

This article investigates the performance of hybrid automatic repeat request （HARQ） with code combining over the ideally interleaved Nakagami-m fading channel. Two retransmission protocols with coherent equal gain code combining are adopted, where the entire frame and several selected portions of the frame are repeated in protocols I and II, respectively. Protocol II could be viewed as a generalization of the recently proposed reliability-based HARQ. To facilitate performance analysis, an approximation of the product of two independent Nakagami-m distributed random variables is first developed. Then the approximate analysis is utilized to obtain exact frame error probability （FEP） for protocol I, and the upper bound of the FEP for protocol II. Furthermore, the throughput performance of both two protocols is presented. Simulation results show the reliability of the theoretical analysis, where protocol II outperforms protocol I in the throughput performance due to the reduced amount of transmitted information.

关键词： code combining HARQ Nakagami-m fading performance analysis

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Reduction of Nitric Oxide over Rutile-supported Cu Surfaces： A Quantum Chemical Study

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Chinese Journal of Chemistry 2005年第11期23卷 1479-1482页

作者： TAN, kai lin, Meng-Hai WANG, Nan-Qin ZHANG, Qian-Er Department of Chemistry University of Xiamen Xiamen Fujian 361005 China

The adsorption and decomposition of NO on the stoichiometric rutile-supported Cu surfaces have been studied by means of density functional calculations with an embedded cluster model. The calculation results indicate that NO is favorably adsorbed as O-down and could easily attach another NO molecule to form N2O intermediate or directly be dissociated into N2 and O2. On the basis of the calculated energetics, possible mechanism of NO decomposition reaction has been proposed.

关键词： DFT Cu/TiO2 embedded cluster model

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Microcontact Printing Techniques in Bioscience

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Chemical Research in Chinese Universities 2004年第6期20卷 826-832页

作者： FENGXi-zeng HOUSun CHANQi-lin WANGLi-kai QINMing HANPei-dong TheKeyLaboratoryofBioactiveMaterials MinistryofEducationNankaiUniversityTianjin300071P.R.China

The microcontact printing(μCP) technology available for patterning protein, DNA hybridization, immunoassay and cellular cocultures onto solid surface are reviewed. This review describes some of the techniques currently employed for creating two-dimensional biomolecular microarray, and the research results regarding their effectiveness. In addition, the applications of the impact of μCP technology in the field of biosciences are also presented.

关键词： Microcontact printing(μCP) DNA hybridization Immunoassay Cell adhesion.

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鸭茅TCP基因家族成员鉴定及表达分析

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草地学报 2024年第6期32卷 1682-1692页

作者：骆金婵靳雅荣杨煜琛祝鑫贾纪原王小珊黄琳凯四川农业大学草业科技学院四川成都611130

TCP转录因子家族在叶片发育中发挥重要作用,鸭茅是世界著名的多年生禾本科牧草,叶片是其主要的收获部位,且营养价值丰富。本研究鉴定了鸭茅(Dactylis glomerata)TCP基因家族成员,并对所有成员进行了理化性质、基因结构、染色体定位、进... 详细信息

TCP转录因子家族在叶片发育中发挥重要作用,鸭茅是世界著名的多年生禾本科牧草,叶片是其主要的收获部位,且营养价值丰富。本研究鉴定了鸭茅(Dactylis glomerata)TCP基因家族成员,并对所有成员进行了理化性质、基因结构、染色体定位、进化关系、保守基序和结构域、启动子顺式作用元件以及表达量等分析。发现鸭茅TCP基因家族共有22个成员被划分成3个亚家族;它们都含有TCP蛋白典型结构域;成员间蛋白的亲水性较好,等电点和相对分子质量有差异;α螺旋和无规则卷曲是鸭茅TCP蛋白主要的二级结构,亚细胞定位预测主要定位于细胞核;22个成员的启动子顺式作用元件可分为4类,分别是光响应元件、植物激素响应元件、抗病创伤胁迫响应元件以及其他元件;此外,DgTCP8和DgTCP20在叶片中的表达量较高且可响应生长素和赤霉素的表达。本文为深入探究鸭茅TCP基因在叶片发育中的功能提供依据,为叶片优良鸭茅品种的选育奠定基础。

关键词：鸭茅 TCP 基因家族表达量分析叶片发育

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The GEON service-oriented architecture for Earth Science applications

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International Journal of Digital Earth 2009年第S01期2卷 62-78页

作者： Chaitan Baru Sandeep Chandra kai lin Ashraf Memon Choonhan Youn San Diego Supercomputer Center University of CaliforniaSan Diego9500 Gilman DriveLa JollaCA 92093-0505USA

The Geosciences Network(GEON)project has been developing cyberinfrastructure for data sharing in the Earth Science community based on a serviceoriented *** layered architecture consists of Core,Middleware,and Applications *** services provide system-level functions(*** authentication),Middleware services provide generic capabilities(*** search),and Application services provide functions that users directly interact with,including applications that are specific to Earth *** GEON‘service stack’includes a standardized set of these services and the corresponding software *** GEON Portal provides Web-based access to these services via a set of *** service-oriented approach has enabled GEON to expand to new partner sites and leverage GEON services for other *** facilitate interoperation in a distributed geoinformatics environment,GEON is focusing on standards for distributed search across federated catalogs.

关键词： word geoinformatics service-oriented architecture distributed software systems interoperability

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