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Journal of Materials Science & Technology 2010年第12期26卷 1114-1118页

作者： S.Sasikumar r.Vijayaraghavan Materials Division School of Advanced SciencesVIT UniversityVellore 632 014Tamil NaduIndia

Calcium hydroxyapatite （Ca10（PO4）6（Oh）2） has been synthesized in short duration by rapid solution combustion by employing different fuels. Calcium nitrate was taken as source of calcium and diammonium hydrogen phosphate served as the source of phosphate ions. Citric acid, tartaric acid, sucrose, glycine and urea were used as the fuels and nitrate ions and nitric acid were used as oxidizers. The influence of fuels on the morphology of the phase formed was studied. results of the studies by powder X-ray diffraction and Fourier-transform infrared spectroscopy showed the formation of hydroxyapatite as a major phase for all the fuels. The thermal analysis of the decomposed precursor showed variation in heat content for different fuels. Scanning electron microscopy showed different morphologies of the products obtained by different fuels. Chemical analyses to determine the Ca：P atomic ratio in synthesized ceramics showed that the ratio was 1：1.66.

关键词： Bioceramics Combustion synthesis Thermochemistry Morphology

The Use of the hollow Dielectric resonator Antenna as a Packaging Cover

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The Use of the Hollow Dielectric Resonator Antenna as a Pack...

Myxomycetes associated with grasslands of the western central United States

2005'全国微波毫米波会议

作者： E.h.Lim K.w.Leung wireless Communications research Centre and Dept.of Electronic Engg. City University of Hong Kong

＜正＞The dual functions of the rectangular hollow DrA（dielectric resonator antenna） as an antenna and a packaging cover are *** design methodology is discussed,and the return loss, impedance,and radiation patterns for the fundamental mode are presented at 2.4Ghz,a popular frequency band for the wLAN and wireless communications.A low noise amplifier is integrated successfully into the embedded cavity to form an active DrA,and the amplified radiation patterns are *** proposed DrA provides a possible solution to the size minimization of transceivers.

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Fungal Diversity 2013年第2期59卷 147-158页

作者： Adam w.rollins Steven L.Stephenson Department of Biology Lincoln Memorial UniversityHarrogateTN 37752USA Department of Biological Sciences University of ArkansasFayettevilleAR 72701USA

The assemblages of myxomycetes associated with the three types of temperate grasslands(tall grass,mixed grass and short grass)found across the western central United States were examined by collecting samples for isolation of these organisms from nine study *** consisted of two types of ground litter,two types of aerial litter(dead but still attached plant parts)and *** were brought back to the laboratory and used to prepare a series of moist chamber *** cultures yielded 1,301 collections of myxomycetes representing 59 species in 18 *** collections could be identified only to genus and one in particular(Lepidoderma sp.)appears to be an undescribed *** spectabile was recorded for the first time in North ***,only eight species(Badhamia melanospora,Didymium anellus,***,***,Perichaena depressa,Physarum cinereum,***,and Stemonitis fusca)were recovered from all nine study sites and thus are considered to represent a core component of the myxomycete biota of temperate grasslands.

关键词： Community ecology Ecological distribution Grasslands Microhabitat Myxogastrids

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山地温性积雪内液体水含量的测定方法

山地学报 1999年第4期17卷 289-293页

作者：何元庆 w.h.Theakstone 中国科学院兰州冰川冻土研究所冰芯与寒区环境实验室兰州730000 DepartmentofGeographyUniversityofManchester

通过在北欧ＡｕｓｔｒｅＯｋｓｔｉｎｄｂｒｅｅｎ冰川积雪内的实际测定结果，证明野外测量积雪内液体水含量的新方法———酒精量热法是可行和适用的，解决了过去测定积雪内液体水含量时遇到的困难。５个雪坑剖面的测定结果清楚地... 详细信息

通过在北欧ＡｕｓｔｒｅＯｋｓｔｉｎｄｂｒｅｅｎ冰川积雪内的实际测定结果，证明野外测量积雪内液体水含量的新方法———酒精量热法是可行和适用的，解决了过去测定积雪内液体水含量时遇到的困难。５个雪坑剖面的测定结果清楚地显示出雪内液体水含量的区带性和随高度的变化，积雪内液体水含量的垂直变化与雪层中物理结构、温度和密度的分布有关。

关键词：温性积雪液体水含量酒精量热法山地冰川

Synthesis, Optical Properties and Photovoltaic Application of the SnS Quasi-one-dimensional Nanostructures

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Nano-Micro Letters 2013年第1期5卷 1-6页

作者： M.X.wang G.h.Yue Y.D.Lin X.wen D.L.Peng Z.r.Geng Department of Materials Science and Engineering Fujian Key Laboratory of Advanced MaterialsXiamen University Department of Materials Engineering Lanzhou Institute of Technology School of Mechatronic Engineering Lanzhou Jiao Tong University

Low-toxicity single crystal Sn S nanowires had been successfully synthesized by the catalystassistant chemical vapor deposition. Au nanoparticles were applied on the ITO surface as the catalysis, using Sn S powder and S powder as forerunners. The structure, morphology and optical properties of the prepared Sn S nanowires were characterized. The experimental results show the as-synthesized nanowires are single crystalline with a preferential orientation. The synthesized Sn S nanowires show strong absorption in the visible and nearinfrared spectral region, and the direct energy band gap of Sn S nanowires is 1.46 e V.

关键词： Nanostructure Chemical vapor deposition Crystal growth Optical property

Power-Sharing Enhancement Using harmonized Membership Fuzzy Logic Droop Control Based Micro-Grid

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Intelligent Automation & Soft Computing 2023年第5期36卷 1395-1415页

作者： w.J.Praiselin J.Belwin Edward School of Electrical Engineering Vellore Institute of TechnologyVellore632014TamilnaduIndia

The contribution of renewable Energy resources(rEr)in the process of power generation is signiﬁcantly high in the recent days since it paves the way for overcoming the issues like serious energy crisis and natural *** paper deals with the renewable energy based micro-grid as it is regarded as the apt solution for integrating the rEr with the electrical *** theﬁxed droop coefﬁcients in conventional droop control approaches have caused various limitations like low power-sharing and sudden drops of grid voltage in the Direct Current(DC)side,the harmonized Membership Fuzzy Logic(MFL)droop control is employed in this present *** proposed droop control for the hybrid PV-wind-battery system with MFL assists in achieving proper power-sharing and minimizing Total harmonic Distortion(ThD)in the emer-gency *** eradicates the deviations in voltage and frequency with itsﬂexible and robust *** ThD is reduced and attains the value of 3.1%compared to the traditional droop *** simulation results of harmo-nized MFL droop control are analogized with the conventional approaches to vali-date the performance of the proposed *** addition,the experimental results provided by the Field Programmable Gate Array(FPGA)based laboratory setup built using a solar photovoltaic(PV)and wind Permanent Magnet Synchro-nous Generator(PMSG)reafﬁrms the design.

关键词： Micro-grid harmonized droop control fuzzy power-sharing total harmonic distortion

Disruption of Cortical Microtubules by Overexpression of Green Fluorescent Protein-Tagged α-Tubulin 6 Causes a Marked reduction in Cell wall Synthesis

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Disruption of Cortical Microtubules by Overexpression of Gre...

Parametric regression Approach for Gompertz Survival Times with Competing risks

第四届拟南芥学术研讨会

作者： David h. Burk w. herbert Morrison Ⅲ Department of Plant Biology richard B. russell Agriculture research Center

It has been known that the transverse orientation of cortical microtubules (MTs) along the elongation axis is essential for normal cell morphogenesis, but whether cortical MTs are essential for normal cell wall synthesis is still not clear. In the present study, we have investigated whether cortical MTs affect cell wall synthesis by direct alteration of the cortical MT organization in Arabidopsis thaliana. Disruption of the cortical MT organization by expression of an excess amount of green fluorescent protein-tagged a-tubulin 6 (GFP-TUA6) in transgenic Arabidopsis plants was found to cause a marked reduction in cell wall thickness and a decrease in the cell wall sugars glucose and xylose. Concomitantly, the stem strength of the GFP-TUA6 overexpressors was markedly reduced compared with the wild type. In addition, expression of excess GFP-TUA6 results in an alteration in cell morphogenesis and a severe effect on plant growth and development. Together, these results suggest that the proper organization of cortical MTs is essential for the normal synthesis of plant cell walls.

关键词： Arabidopsis thalian cell elongation cell wall synthesis cortical microtubules microtubule organization

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Communications on Applied Mathematics and Computation 2022年第4期4卷 1175-1190页

作者： h.rehman N.Chandra Department of Statistics Ramanujan School of Mathematical SciencesPondicherry UniversityPuducherry 605014India

regression models play a vital role in the study of data regarding survival of *** Cox proportional hazards model for regression analysis has been frequently used in sur-vival *** survival studies,it is also possible that survival time may occur with multiple occurrences of event or competing *** situation of competing risks arises when there are more than one mutually exclusive causes of death(or failure)for the person(or subject).In this paper,we developed a parametric regression model using Gompertz distribution via the Cox proportional hazards model with competing *** discussed point and interval estimation of unknown parameters and cumulative cause-specific hazard function with maximum-likelihood method and Bayesian method of *** Bayes estimates are obtained based on non-informative priors and symmetric as well as asym-metric loss *** observe the finite sample behaviour of the proposed model under both estimation procedures,we carried out a Monte Carlo simulation *** demon-strate our methodology,we also included real data analysis.

关键词： Competing risks regression model Cause-specific hazard Gompertz distribution Parametric model Bayesian estimation MCMC algorithm

Multidisciplinary management of nonfunctional neuroendocrine tumor of the pancreas

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world Journal of Gastroenterology 2016年第11期22卷 3105-3116页

作者： Ian w Folkert Paul hernandez robert E roses Department of Surgery Hospital of the University of Pennsylvania

Pancreatic neuroendocrine tumors(PNETs) are a rare and diverse group of tumors; nonfunctional(NF) PNETs account for the majority of cases. Most patients with NF-PNETs have metastatic disease at the time of presentation. A variety of treatment modalities exist, including medical, liver directed, and surgical treatments. Aggressive surgical management is associated with prolonged survival, however available data are limited by selection bias and the frequent combination of PNETs with carcinoid tumors. Although few patients with metastatic disease will be cured, application of currently available therapies in a multidisciplinary setting can lead to excellent outcomes with prolonged patient survival.

关键词： Neuroendocrine tumor Pancreas Non functional Multidisciplinary Pancreatic neuroendocrine tumor