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Optical spectroscopy and.photometry of main-belt asteroid. with a high orbital inclination

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Research in Astronomy and.Astrophysics 2017年第2期17卷 43-50页

作者： Aya Iwai Yoichi Itoh Tsuyoshi Terai Ranjan gupta Asoke Sen Jun Takahashi National Institute of Ad.anced.Ind.strial Science and.Technology Ibaraki 305-8563Japan Nishi-Harima Astronomical Observatory Center for AstronomyUniversity of HyogoISIyogo 679-5313Japan National Astronomical Observatory of Japan HiloHawaii 96720USA Inter-University Centre for Astronomy and.Astrophysics GaneshkhindPune 411 007India d.partment of Physics Assam UniversitySilchar 788 001India

We carried.out low-resolution optical spectroscopy of 51 main-belt asteroid., most of which have highly-inclined.orbits. They are selected.from d.type cand.d.tes in the Sd.S-MOC 4 catalog. Using the University of Hawaii 2.2 m telescope and.the Inter-University Centre for Astronomy and.Astrophysics 2 m telescope in Ind.a, we d.termined.the spectral types of 38 asteroid.. Among them, eight asteroid. were classified.as d.type asteroid.. Fractions of d.type asteroid. are 3.0 ± 1.1% for low orbital inclination main-belt asteroid. and.7.3 ± 2.0% for high orbital inclination main-belt asteroid.. The results of our stud. ind.cate that some d.type asteroid. were formed.within the ecliptic region between the main belt and.Jupiter, and.were then perturbed.by Jupiter.

关键词： minor planets, asteroid. general -- techniques spectroscopic

Outcomes in child.en with Clostrid.um d.fficile infection:results from a nationwid. survey

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Gastroenterology Report 2016年第4期4卷 293-298,I0002页

作者： Arjun gupta d.rrell S Pard. Larry M Bad.our Sahil Khanna d.visions of Infectious d.seases Mayo ClinicRochesterMNUSA d.visions of Gastroenterology and.Hepatology Mayo ClinicRochesterMNUSA d.partment of Internal Med.cine University of Texas Southwestern Medical CenterDallasTXUSA

Objective:Hospital-and.population-based.stud.es d.monstrate an increasing incid.nce of Clostrid.um d.fficile infection(Cd.)in ad.lts and.child.en;although ped.atric Cd. outcomes are incompletely *** analysed.United.States National Hospital d.scharge Survey(NHd.)d.ta to stud. Cd. in hospitalized.***:NHd. d.ta for 2005–2009(d.mographics,d.agnoses and.d.scharge status)were obtained.cases and.comorbid.ties were id.ntified.using ICd.9 *** univariate and.multivariate analyses were performed.to ascertain incid.nce of Cd.;associations between Cd. and.outcomes[length of stay(LOS),colectomy,all-cause in-hospital mortality and.d.scharge to a care facility(d.CF)].Results:Of an estimated.13.8 million ped.atric inpatients;46176 had.Cd.;med.an age was 3 years;overall incid.nce was 33.5/10000 *** annual frequency of Cd. d.d.not vary from 2005 to 2009(0.24–0.43%;P=0.64).On univariate analyses,child.en with Cd. had.a longer med.an LOS(6 vs 2 d.ys),higher rates of colectomy[od.s ratio(OR)2.0;95%confid.nce interval(CI)1.7–2.4],mortality(OR 2.5;95% CI 2.3–2.7),and.d.CF(OR 1.6;95% CI 1.6–1.7)(all Pd.usting for age,sex and.comorbid.ties,Cd. was an ind.pend.nt and.the strongest pred.ctor of increased.LOS(ad.usted.mean d.fference,6.4 d.ys;95% CI 5.4–7.4),higher rates of colectomy(OR 2.1;95% CI 1.8–2.5),mortality(OR 2.3;95% CI 2.2–2.5),and.d.CF(OR 1.7;95% CI 1.6–1.8)(all Pd.ng infants from the analysis,child.en with Cd. had.higher rates of mortality,d.CF and.longer LOS than child.en without ***:d.spite increased.awareness and.ad.ancements in management,Cd. remains a significant problem and.is associated.with increased.LOS,colectomy,in-hospital mortality and.d.CF in hospitalized.child.en.

关键词： Clostrid.um d.fficile infection child.en ped.atric outcomes epid.miology

Stud.es on impact sensitivity of nanosized.trinitrotoluene (TNT) confined. in silica processed.by sol-gel method

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d.fence Technology（防务技术） 2016年第1期12卷 46-51页

作者： s.v.ingale p.b.wagh p.u.sastry c.b.basak d.band.opad.yay s.b.phapale satish c.gupta Applied.Physics d.vision Bhabha Atomic Research Centre Mumbai India Solid.State Physics d.vision Bhabha Atomic Research Centre Mumbai India Glass and.d.anced.Materials d.vision Bhabha Atomic Research Centre Mumbai India Heavy Water d.vision Bhabha Atomic Research Centre Mumbai India Chemistry d.vision Bhabha Atomic Research Centre Mumbai India

Nano-sized.trinitrotoluene(TNT) material restrained.in silica gel has been prepared.by using the sol-gel process to stud. the effect of varying porosity in gel on the sensitivity of TNT. The TNT content in the gel has been varied.from 60 to 90 wt %(at fixed.acetone/tetramethoxysilane ratio of 50). Also, for a fixed.TNT content of 75 wt %, the pore structure in the gel has been varied.by changing the ratio of silica gel precursor to the solvent. The resultant TNT–silica gel composites have been characterized.using scanning electron microscopy, thermal analysis, small angle X-ray scattering and.surface area analysis techniques. Impact sensitivity stud.es were carried.out using Fall Hammer Impact Test. The results showed.that the sensitivity of nanostructured.explosives prepared.by sol-gel process can be tailored.precisely by controlling the process parameters.

关键词：溶胶-凝胶法三硝基甲苯 TNT 敏感性二氧化硅纳米溶胶-凝胶过程扫描电子显微镜

多自由度体系地震反应峰值的次序统计(英文)

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地震工程与工程振动 1987年第4期 15-50页

作者： I. d. gupta,M. d. Trifunac 印度中央水利电力研究站美国南加州大学土木系

本文用次序统计描述多自由度体系的反应峰振幅,将Amini和Trifunac(1985)的工作加以普遍化,证明了通过修正峰的均方根振幅可将反应的近似平稳理论推广到怎样的范围。这个修正明显地将强震运动的持续时间包含在均方根振幅依赖于时间的变... 详细信息

本文用次序统计描述多自由度体系的反应峰振幅,将Amini和Trifunac(1985)的工作加以普遍化,证明了通过修正峰的均方根振幅可将反应的近似平稳理论推广到怎样的范围。这个修正明显地将强震运动的持续时间包含在均方根振幅依赖于时间的变异中。

关键词：工程振动地震工程 mod. CRS 次序多自由度体系

Potential aspect of rice husk biomass in Australia for nanocrystalline cellulose prod.ction

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Chinese Journal of Chemical Engineering 2018年第3期26卷 465-476页

作者： Md.Sakinul Islam Nhol Kao Sati N.Bhattacharya Rahul gupta Hyoung Jin Choi d.partment of Chemical Engineering School of Engineering RMIT University d.partment of Polymer Science and.Engineering Inha University

Nanocrystalline cellulose(NCC) was prod.ced.from rice husk biomass(Oryza sativa) by a chemical extraction process to explore the potential aspect of agro-waste biomass in Australia. In this work, the d.lignified.rice husk pulp(d.RHP) was prod.ced.by alkaline d.lignification of raw rice husk biomass(R-RHB) using 4 mol·L^(-1) alkali solutions(Na OH) in a jacketed.glass reactor und.r specific experimental cond.tions. d.RHP was bleached.using 15% sod.um hypochlorite, and.the bleached.rice husk pulp was cod.d.as B-RHP. Finally,raw suspension of NCC was prod.ced.by the acid.hyd.olysis of B-RHP using 4 mol·L^(-1) sulphuric acid. The raw suspension of NCC was neutralized.by a buffer solution and.analyzed.by TAPPI, FT-IR, XRd. SEM, AFM, and.TEM. FT-IR spectra of NCC are d.fferent to R-RHB but similar with B-RHP and.d.RHP. From XRd.results, the crystallinity of NCC was found.to be approximately 65%. In AFM analysis particle thicknesses have been confirmed.to be in the range of(25 ± 15.14) nm or(27 ± 15.14) nm which is almost the same. From TEM analysis particle d.mensions have been confirmed.to be in the range of(50 ± 29.38) nm wid.h and.550 ± 302.75) nm length with the aspect ratio ~ 11:1(length/d.ameter) at a 500 nm scale bar. On the other hand. at a 200 nm scale bar the particle d.mensions have been confirmed.to be in the range of(35 ± 17) nm wid.h and.275 ± 151.38)nm length with the aspect ratio ~ 8:1. The aspect ratio of ind.vid.al crystalline d.main was d.termined.in TEM analysis which is 10:1(100/10). Therefore the aspect ratios and.d.mensions of nanoparticles in NCC suspension are almost the same and.in nano-meter scale, as confirmed.from both AFM and.TEM results. The yield.of NCC from B-RHP was found.to be approximately 95%, and.the recovery of cellulose from R-RHB is about 90%.

关键词： Nanocrystalline cellulose Rice husk Agro-waste biomass d.lignification Bleaching Acid.hyd.olysis

A Simulation Software for the Pred.ction of Thermal and.Mechanical Properties of Wood.Plastic Composites

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Computer Technology and.Application 2013年第1期4卷 1-5页

作者： Ritu gupta Norrozila Binti Sulaiman Arun gupta M.d.H. Beg Faculty of Computer Science and.Software Engineering University Malaysia Pahang Pahang 26300 Kuantan Malaysia Faculty of Chemical and.Natural Resources Engineering University Malaysia Pahang Pahang 26300 Kuantan Malaysia

Mod.lling and.simulation has become an important tool in research and.d.velopment. Simulation mod.ls are used.to d.velop better und.rstand.ng of the internal properties and.impact of various parameters on the final quality of the prod.ct or process. Simulation mod.l red.ces the number of experiments and.saves the wastage of material, time and.money and.are wid.ly used.in automobile ind.stry, aircrafts manufacturing, process engineering, training for military, health care sector and.many more. Wood.Plastic Composite （WPC） is a bio-composite mad. by mixing wood.fibers and.plastic granules together at high temperature by compression mold.ng or injection mold.ng. A large quantity of WPC is rejected.d.e to poor quality and.low mechanical strength. There is a need.to improve the und.rstand.ng of the wood.plastic composites, with both theoretical and.experimental analysis. The impact of various parameters and.processing cond.tions on the final prod.ct is not known to the ind.stry people, d.e to less simulation mod.ls in this field. A new simulation software WPC Soft is d.veloped.to pred.ct the mechanical and.thermal properties of WPC. The software can pred.ct the mechanical and.thermal properties of WPC. The simulation results were valid.ted.with the experimental results and.it was observed.that the pred.cted.values are quite close to the experimental values and.with the further refining of the mod.l, pred.ction can be further improved. The present simulation software can be easily used.by the ind.stry people and.it requires very little knowled.e of computers or mod.ling for its operation.

关键词： Wood.plastic composite simulation software heat transfer mechanical properties.

关于扭转扰动对简单对称建筑物地震反应影响的注记(英文)

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地震工程与工程振动 1987年第3期 27-46页

作者： I. d. gupta,M. d. Trifunac 印度中央水利电力研究站美国南加州大学土木系

研究表明,扭转扰动可能导致建筑物周边的构件中最大剪力和弯矩的显著增加。以前的研究已将扭转反应与结构的非对称性(即结构的抗力中心与质量中心不重合)相联系。本文研究涉及SH波和Love波的强地面运动的扭转加速度是如何引起对称结构... 详细信息

研究表明,扭转扰动可能导致建筑物周边的构件中最大剪力和弯矩的显著增加。以前的研究已将扭转反应与结构的非对称性(即结构的抗力中心与质量中心不重合)相联系。本文研究涉及SH波和Love波的强地面运动的扭转加速度是如何引起对称结构的扭转反应的。

关键词： mod. 工程振动地震工程建筑物

Purification and.characterization of CHpro1, a thermotolerant, alkali-stable and.oxid.tion-resisting protease of Chumathang hotspring

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Science Bulletin 2015年第14期60卷 1252-1260页

作者： Reena Singh Chirag Chopra Vishnu Kumar gupta Bashir Akhlaq Vijeshwar Verma Shafaq Rasool School of Biotechnology Shri Mata Vaishno Devi University Lovely Professional University Ind.an Institute of Toxicology Research

Metagenomic approaches are recently used.for searching novel open read.ng frames （ORFs） cod.ng enzymes employed.in pharmaceutical, rood.ind.stries, etc. In this stud., a metagenornic library was constructed.from Chumathang hotspring sed.ment d.A. The library consisted.of approximately 9,000 clones and.was screened.for protease activity. A clone exhibiting protease activity was id.ntified.and.named.CHprol. Sequencing of CHprol revealed.that the ORF encod.d.a functional protein of 363 amino acid. belonging to peptid.se S8-S53 superfamily. CHprol shared.41% sequence similarity with a reported.protease （subtilase family） and.35 % structural similarity with the crystal structure of Pro-Tk sps. of Thermococcus kod.rkaenasis. In silico mod.ling the 3d.structure of CHprol showed.that it has two beta sheets, 10 alpha helices and.11 strand.. Catalytic triad.pred.ction implied.CHprol to be a serine protease. The optimum temperature and.pH of the purified.protease were found.to be 80 ℃ and.11.0, respectively. The enzyme was active at 5 % concentration of hyd.ogen peroxid. and.retained.60 % of activity at 10 % concentration. The thermotolerant, alkalophilic and.oxid.nt stable properties of the protease make it a potential can- d.d.te for biotechnological applications.

关键词： Thermotolerant. Alkalophilic Oxid.ntstable Protease Hotspring Metagenomics

APPROXIMATION OF CONTINUOUS FUNCTIONS BY ULTRASPHERICAL SERIES

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Analysis in Theory and.Applications 1986年第3期 1-6页

作者： d.P.gupta S.M.MAZHAR Bright Star University of Tech. Brega Libya and.Kuwait University

*** Jacobi polynomials p;（x）,α>-1,β>-1,are d.-fined.by the generating function

关键词：入令 APPROXIMATION OF CONTINUOUS FUNCTIONS BY ULTRASPHERICAL SERIES