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Four new species and a new record of Orchidinae(Orchidaceae:Orchideae)from China

Plant Diversity 2021年第5期43卷 390-400页

作者： Dong-Liang Lin Ji-Dong Ya Andre Schuiteman Chong-Bo Ma Cheng Liu Xue-Lian Guo Shi-si Chen Xi-Long Wang Zhi-Rong Zhang Wen-Bin Yu Xiao-Hua Jin State Key Laboratory of Systematic and Evolutionary Botany and Herbarium Institute of BotanyChinese Academy of SciencesNanxincun 20XiangshanBeijing100093China Germplasm Bank of Wild Species Kunming Institute of BotanyChinese Academy of SciencesLanhei Road 132HeilongtanKunmingYunnan650201China Herbarium Royal Botanic GardensKewRichmondSurrey TW93ABUK Tibet Plateau Institute of Biology LhasaXizang 850001China University of Chinese Academy of Sciences BeijingChina Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenMengla 666303YunnanChina

Four new species of Orchidaceae from China,Heminium lijiangense,Peristylus fasciculatus,Platanthera milinensis,and Ponerorchis gongshanensis,together with a new country record,Peristylus tenuicallus,are described and illustrated based on morphological and/or phylogenetic *** lijiangense is closely related to *** but differs from it by having the dorsal sepal ovate-orbicular and lip midlobe distinctly shorter than lateral *** is close to Peristylus tradescantifolius but is distinguished from it by having several fascicled and straight,root-like tubers(*** or two oblongoid tubers),old stems usually persistent,middle lobe of lip narrowly ligulate-lanceolate and half as long as the lateral lobes(*** lobe deltoid,about a third as long as the lateral lobes or less),a raised callus at the base of each lateral lobe(*** absent),spur gradually attenuate toward the apex(*** clavate).Platanthera milinensis is similar to *** by sharing small green flowers and lip without a spur,but differs in having a creeping rhizome,a corymbose inflorescence,and a broadly ovate and slightly 3-lobed *** gongshanensis is similar to *** in its small flowers,but differs in having a linear leaf c.3 mm wide(*** 5-13 mm wide),in the lip having collar-like raised margins on the sides of the spur entrance,and a mid-lobe which is notched at the apex but not divided into two divergent lobules that are nearly as large as the lateral lobes,as in *** the proposed species obtained high support in phylogenetic analysis as new *** recently described genus Apetalanthe is reduced to synonymy of Ponerorchis and a new combination is made.

关键词： Orchidaceae Herminium Ponerorchis Peristylus Platanthera China

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Driving Factors of Green Mining in Coal Mining Enterprises in China

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Frontiers of Engineering Management 2015年第3期2卷 211-223,323页

作者： Lin-xiu Wang Mu-xi Yu si-jia Wang School of Mechanic and Civil Engineering China University of Mining and TechnologyXuzhou Smeal College of Business Pennsylvania State University State College

This study constructs a Green Mining model based on identification and analysis of the four key driving factors of Green Mining in coal mining enterprises in China. Twelve research propositions are raised and empirically tested by using Structural Equation *** result shows that four key factors affect the intended implementation of Green Mining by improving a corporations efficiency and reputation. The diffusion of Green Mining technology has direct positive influence on the intended Green Mining implementation; Stakeholders' green appeal has a positive influence on the decision makers' attitude and values. The empirical study provides support for the government to establish a reasonable regulation and control mechanism to improve enterprises' enthusiasm for Green Mining. Four Green Mining incentive policies are raised to regulate and motivate the coal mining enterprises to improve their environmental behaviors. The government can adopt piece(s) of them to change the enterprises' roles from traditional passive to modern initiative.

关键词： Green Mining driving factor Structural Equation Model empirical study

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Free-standing,curled and partially reduced graphene oxide network as sulfur host for high-performance lithium–sulfur batteries

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Chinese Physics B 2018年第6期27卷 461-467页

作者： Hui-Liang Chen Zhuo-Jian Xiao Nan Zhang Shi-Qi Xiao Xiao-Gang Xia Wei Xi Yan-Chun Wang Wei-Ya Zhou si-Shen Xie Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China Beijing Key Laboratory for Advanced Functional Materials and Structure Research Beijing 100190 China School of Physical Sciences University of Chinese Academy of Sciences Beijing 100049 China

Lithium–sulfur（Li–S） batteries have received more and more attention because of higher specific capacity and energy density of sulfur than current lithium–ion batteries. However, the low electrical conductivity of sulfur and its discharge product, and also the high dissolution of polysulfides restrict the Li–S battery practical applications. To improve their performances, in this work, we fabricate a novel free-standing, curled and partially reduced graphene oxide（CPrGO for short） network and combine it with sulfur to form a CPrGO–S composite as a cathode for Li–S battery. With sulfur content of 60 wt%, the free-standing CPrGO–S composite network delievers an initial capacity of 988.9 m Ah·g^（-1）. After 200 cycles,it shows a stable capacity of 841.4 m Ah·g^（-1） at 0.2 C, retaining about 85% of the initial value. The high electrochemical performance demonstrates that the CPrGO–S network has great potential applications in energy storage system. Such improved properties can be ascribed to the unique free-standing and continous CPrGO–S network which has high specific surface area and good electrical conductivity. In addition, oxygen-containing groups on the partially reduced graphene oxide are beneficial to preventing the polysulfides from dissolving into electrolyte and can mitigate the ＂shuttle effect＂.

关键词： lithium-sulfur batteries sulfur cathode curled reduced graphene oxide

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Mechanism of hyperproteinemia-induced blood cell homeostasis imbalance in an animal model

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Zoological Research 2022年第3期43卷 301-318页

作者： Guang Wang Yong-Feng Wang Jiang-Lan Li Ru-Ji Peng Xin-Yin Liang Xue-Dong Chen Gui-Hua Jiang Jin-Fang Shi Yang-Hu si-Ma Shi-Qing Xu School of Biology and Basic Medical Sciences Suzhou Medical CollegeSoochow UniversitySuzhouJiangsu 215123China Department of Clinical Laboratory First Affiliated Hospital of Soochow UniversitySuzhouJiangsu 215006China

Hyperproteinemia is a metabolic disorder associated with increased plasma protein concentration(PPC)and is often clinically complicated by malignant diseases or severe *** present,however,research on the molecular mechanism underlying high PPC(HPPC)is ***,an animal model of primary hyperproteinemia was constructed in an invertebrate(Bombyx mori)to investigate the effects of HPPC on circulating blood *** showed that HPPC affected blood cell homeostasis,leading to increased reactive oxygen species levels,and induced programmed cell death dependent on the endoplasmic reticulum-calcium ion signaling *** induced the proliferation of blood cells,mainly granulocytes,by activating the Janus kinase/signal transducer and activator of transcription(JAK/STAT)signaling *** with the endocrine hormone active substance 20 E significantly reduced the impact of HPPC on blood cell ***,we identified a novel signaling pathway by which HPPC affects blood cell homeostasis,which differs from hyperglycemia,hyperlipidemia,and *** addition,we showed that down-regulation of gene expression of the hematopoietic factor Gcm could be used as a potential early detection indicator for hyperproteinemia.

关键词： Animal model Blood cell homeostasis High plasma protein concentration(HPPC) JAK/STAT pathway Programmed cell death

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Intervention effect of chewing sugar-free gum on xerostomia in hemodialysis patients: A meta-analysis

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TMR Integrative Nursing 2019年第6期3卷 207-213页

作者： Yan-Qiu Huang si-Qi Xiong Chang-De Jin Graduate College Tianjin University of Traditional Chinese Medicine School of Nursing Tianjin University of Traditional Chinese Medicine

Objective:Meta-analysis was used to evaluate the effect of chewing sugar-free gum on xerostomia in hemodialysis ***:Randomized controlled trials or semi-randomized clinical trials on the effects of chewing sugarless gum on xerostomia in hemodialysis patients were retrieved from the databases of Chinese national knowledge infrastructure(CNKI),Wanfang,Chinese sci-tech periodical full text databases Whipple(VIP),Chinese biomedical(CBM),Pubmed,Embase,Cochance,Web of science,Ovid and *** data extraction and quality evaluation,we used Review Manager 5.3 software to carry out meta-analysis of the outcome ***:Five studies enrolled 237 patients were included *** results showed that chewing sugar-free gum improved the symptoms of dry mouth[MD=-2.12,95%CI(-2.53,-1.71),Psis patients,but it has no effect on thirst and weight gain during ***,due to the small number and the low quality of included literatures,it is still necessary to carry out large sample,multi-center and high-quality randomized controlled trials to further explore the effect of chewing sugar-free gum on xerostomia in hemodialysis patients.

关键词： Sugar-free gum Hemodialysis Xerostomia Meta-analysis

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巷道围岩调热圈分布特性研究:以羊场湾煤矿为例

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中国安全科学学报 2023年第8期33卷 125-133页

作者：张健张鹏妍魏建平 si Guangyao 许博许振国河南理工大学安全科学与工程学院河南焦作454003 河南理工大学河南省瓦斯地质与瓦斯治理重点实验室河南焦作454003 煤炭安全生产与清洁创新高效利用省部共建协同创新中心河南焦作454003 新南威尔士大学矿业与能源资源学院澳大利亚悉尼NSW 2052

为了研究矿井巷道围岩温度场的分布情况,首先在羊场湾煤矿13采区回风下山937高程附近,利用深孔测温技术测定围岩温度,同时测定具有代表性的岩石热物性参数;然后利用COMSOL软件建立数值模型,模拟巷道围岩的温度场;最后通过改变通风时间... 详细信息

为了研究矿井巷道围岩温度场的分布情况,首先在羊场湾煤矿13采区回风下山937高程附近,利用深孔测温技术测定围岩温度,同时测定具有代表性的岩石热物性参数;然后利用COMSOL软件建立数值模型,模拟巷道围岩的温度场;最后通过改变通风时间和风流特性,分析其对该巷道调热圈温度场的影响。结果表明:通过深孔测温可知该巷道原始岩温为28.3℃,调热圈半径为32 m;通过数值模拟可知:其调热圈半径为30.9 m,与实测结果误差为3.4%。随着巷道通风时间的延长,围岩的扰动范围不断增加,围岩温度不断降低,且温度降低速率逐渐变缓;随着风流温度的降低,围岩温度也逐渐下降,且越靠近巷壁的围岩受风流温度的影响越明显;随着风流速度的增大,围岩温度会逐渐下降,当风速大于4 m/s时,围岩温度趋于稳定。

关键词：巷道围岩调热圈温度场深孔测温热物性参数数值模拟

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Influence of CeO2 on Properties and Activity of Oxide Catalysts in Carbon Monoxide Oxidation

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Journal of Chemistry and Chemical Engineering 2010年第2期4卷 48-55页

作者： Hoang Tien Cuong Luu Cam Loc Ho si Thoang Institute of Chemical Technology Vietnam Academy of Science and Technology 1 Mac Dinh Chi Str. Ho Chi Minh City 70100Vietnam

A series of catalysts on the basis of 10 wt.% CuO/y-AI203, 10 wt.% CuO ＋ 10 wt.% Cr2O3/y-AI203 and 15 wt.% MnO2/y -A1203 have been prepared and modified by CeO2 with contents up to 20 wt.%. Physico-chemical properties of the catalysts were determined by the methods of BET Adsorption, XRD, and TPR. Oxidative activity of the catalysts was studied at the temperature range 90-220 ℃and CO concentration of 3 mol.%. Addition of CeO2 led to changes in physico-chemical properties of the catalysts and formation of novel active centres that increased the activity of CuO and Cr203 containing catalysts, but decreased the activity of those, containing MnO2. The catalyst sample containing 10 wt.% CuO and 15 wt.% CeO2 has been shown to be the best one for complete conversion of CO. At the given conditions on this catalyst the complete oxidation of CO to CO2 occurred at 130 ~C during more than 500 h.

关键词： CeO2 carbon monoxide oxide catalysts oxidation.

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Template-free Polyoxometalate-assisted Synthesis of Au/ZnO Hollow Sphere Hererostructures for Photocatalytic Water Purification

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结构化学 2018年第6期 924-936页

作者： CHEN Bin-Bin LIU si-Qi WENG Sun-Xian Department of Practice and Education，Fuzhou University Zhicheng College State Key Laboratory of Photocatalysis，College of Chemistry，Fuzhou University

The controlled synthesis of ZnO hollow spheres is successfully achieved through a facile solvothermal method using a Keggin-type silicotungstic acid(H4 si(W3 O10)4:HSW) as structure directing agent. The formation process of these hollow spheres is proposed based on a variety of controlled experiments. In addition, Au nanoparticles are loaded onto the surface of ZnO hollow spheres. It is found that the Au-loaded ZnO（Au/ZnO） composites exhibit greatly enhanced activity on oxidizing Rhodamine B（Rh B） under simulated UV or visible light irradiation, compared to the pristine ZnO hollow spheres. The improved performance of Au/ZnO heterostructures is mainly attributed to the enhanced optical absorption and the accelerated separation and migration of photogenerated charge carriers. Moreover, the photocatalytic reaction mechanisms are proposed based on the results of electron spin resonance（ESR） analysis, photoelectrochemical measurements, and photocatalytic evaluation. The results and findings are expected to provide significance to the synthesis of noble metal-semiconductor hybrids towards water purification.

关键词：控制合成纯化模板 KEGGIN 水金属半导体 ZnO 控制实验

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新辅助治疗对胰腺癌围手术期并发症的影响

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中华医学杂志 2021年第10期101卷 708-711页

作者：施思虞先濬复旦大学附属肿瘤医院胰腺外科复旦大学上海医学院肿瘤学系上海200032

胰腺癌是恶性程度最高的消化道肿瘤之一,其5年生存率仍然不足10%。手术是胰腺癌长期生存的基础。随着化疗方案的进步,新辅助治疗逐步在胰腺癌中得到开展。关于新辅助治疗对胰腺癌围手术期并发症影响的研究日益增多,但不同研究的结果并... 详细信息

胰腺癌是恶性程度最高的消化道肿瘤之一,其5年生存率仍然不足10%。手术是胰腺癌长期生存的基础。随着化疗方案的进步,新辅助治疗逐步在胰腺癌中得到开展。关于新辅助治疗对胰腺癌围手术期并发症影响的研究日益增多,但不同研究的结果并不一致。本研究回顾性分析了近年来胰腺癌新辅助治疗的相关研究,探讨了一些关键因素对围手术期并发症的影响。

关键词：胰腺肿瘤新辅助治疗并发症

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Competency Evaluation and Promotion for Portfolio Management Based on Organizational Project Management Maturity Model

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International Journal of Plant Engineering and Management 2013年第3期18卷 152-158页

作者： LI Sui-ke BAI si-jun WANG Xu-bo School of Management Northwestern Polytechnical University

The objective of this paper is to present an and promote the capabilities of organizational portfolio ment Maturity Model （ OPM3 ）, the process areas of approach to comprehensively and quantitatively evaluate management. Based on the Organizational Project Manage- organizational project portfolio management are identified through the questionnaire survey and further analysis, and five capability levels are put forward and described. Then the methods of Delphi, AHP and multi-layer fuzzy comprehensive evaluation are applied to construct a mod- el of assessment and promotion. Finally, an illustrative example is presented to verify the proposed approach The result objectively and accurately describes the project portfolio management capabilities of the organization, and shows that it is able to provide a theoretical basis for an organization to improve and enhance the project port- folio management

关键词： project portfolio management competency evaluation organizational project management maturitymodel ( OPM3 ) fuzzy sets

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