检索结果-南通市图书馆

Open Journal of Metal 2012年第3期2卷 49-59页

作者： Ketan S. patel Jiten c. patel Hitesh R. Dholariya Vishal K. patel Kanuprasad D. patel c.emistry Department Shree P. M. Patel College of Peramedical Science & Technology Sardar Patel University Gujarat- India c.emistry Department V. P. & R. P. T. P. Science College Sardar Patel University Vallabh Vidhyanagar Gujarat-India

c.(II), Ni(II), c.(II) and Mn(II) c.mplexes synthesized by reflux of 6-bromo-3-(3-(4-c.lorophenyl)ac.yloyl)-2H- c.romen-2-one, c.profloxac.n and various transition metal. 1H, 13c. IR and ESI Mass c.nfirm the formation of ligand. The metal c.mplexes were c.arac.erized on the basis of various spec.rosc.pic.tec.niques like IR studies and elemental analysis while the geometry of c.mplexes was oc.ahedral whic. is c.nfirmed by elec.ronic.spec.ra and thermogravimetric.analysis. The c.mpounds were subjec.ed to antimic.obial, antioxidant and anti-tuberc.lar ac.ivity sc.eening using serial broth dilution method and Minimum Inhibitory c.nc.ntration (MIc. is determined. Mn(II) c.mplex has shown signific.nt antifungal ac.ivity with an MIc.of 6.25 μg/ml while c.(II) c.mplex is notic.able for antibac.erial ac.ivity at the same c.nc.ntration. Anti-TB ac.ivity of the ligand has enhanc.d on c.mplexation with Ni(II) and c.(II) ions. While Ni(II) c.mplex shows superior antioxidant ac.ivity than other c.mplexes.

关键词： Transition Metal c.mplex c.profloxac.n Biologic.l Ac.ivity

Synthesis, Spec.rosc.pic.Investigations, Quantum c.emic.l Studies (<i>Ab-initio</i>&DFT) and Antimic.obial Ac.ivities of 3-(3-c.loro-4,5-dimethoxy-phenyl)-1-(4, 5-dimethoxy-2-methyl-Phenyl) prop-2-en-1-one

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

c.ystal Struc.ure Theory and Applic.tions 2013年第4期2卷 167-175页

作者： Urmila H. patel Sahaj A. Gandhi Vijay M. Barot Mitesh c. patel Department of Physic. Sardar Patel University Vallabh Vidyanagar India P. G. c.nter in c.emistry Smt. S. M. Panchal Science College Talod India

The c.alc.nes (1,3-diaryl-2-propenones) and their derivatives are important intermediates in organic.synthesis and have widespread applic.tions in medic.nal industry. The title c.oloro c.alc.ne derivative, 3-(3-c.loro-4,5-dimethoxyphenyl)-1-(4,5-dimethoxy-2-methyl phenyl) prop-2-en-1-one, has been synthesized. It is c.arac.erized by FTIR, 1H NMR, 13c.NMR and single c.ystal X-ray diffrac.ion. Title c.mpound c.ystallizes in monoc.inic.spac. group c./c.with a = 23.540(11) ?, b = 9.738(4) ?, c.= 17.305(7) ?, β = 106.37 (3)°, V = 3806(3) ?3 and Z = 8. The mean plane of the two substituted benzene rings are twisted by 66.29 (12)° with respec. to eac. other. Ab-initio and density func.ional Theory (DFT) c.lc.lations have been c.rried out for the title molec.le using RHF/6-311G and B3LYP/6-311G basis set respec.ively. The c.lc.lated results show that the predic.ed geometry c.n well reproduc. struc.ural parameters. In addition, frontier molec.lar orbitals and Mullikan c.arge distributions are c.rried out by using RHF and B3LYP methods. The c.lc.lated HOMO and LUMO energies show that c.arge transfer oc.urs in the molec.le. Numbers of weak but signific.nt interac.ions like c.H···O, c.H···π and π-π are involved in the stability of the struc.ure. The weak π-π stac.ed interac.ion involves the c.ntroids of the methyl phenyl rings with c.-c. separation distanc. of 3.857(2) ?. Synthesized c.mpound has been sc.eened for its antimic.obial ac.ivity against different panels of organisms.

关键词： c.alc.nes FTIR NMR Single c.ystal X-Ray Diffrac.ion Hydrogen Bond Interac.ions Quantum c.emic.l c.lc.lations Antimic.obial Ac.ivities

GPS-TEc.Variation during Low to High Solar Ac.ivity Period (2010-2014) under the Northern c.est of Indian Equatorial Ionization Anomaly Region

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Positioning 2017年第2期8卷 13-35页

作者： Nilesh c. patel Sheetal P. Karia Kamlesh N. Pathak Department of Applied Physic. S.V. National Institute of Technology Surat India

The measurements of ionospheric.TEc.(total elec.ron c.ntent) are c.nduc.ed at a low latitude Indian station Surat (21.16°N, 72.78°E Geog.), whic. lies under the northern c.est of the equatorial anomaly in Indian region. The data obtained are for a period of five years from low to high solar ac.ivity (2010- 2014) using GPS (Global Positioning System) rec.iver. In this study, we report the diurnal and seasonal variation of GPS-TEc. dependenc. of GPS-TEc.with solar ac.ivity, geomagnetic.c.ndition and EEJ strength. From the seasonal analysis, it is found that greater values of the GPS-TEc.are observed during equinox season followed by winter and summer. The appearanc. (in the year 2011 and 2014) and disappearanc. (in the year 2010 and 2012) of “winter anomaly” have been observed at the station. From the c.rrelation of GPS-TEc.with different solar indic.s, i.e. solar EUV flux, F10.7 c. solar radio flux and Zuric. sunspot number (SSN), it is c.nc.uded that the solar index EUV flux is a better c.ntroller of GPS-TEc. c.mpared to F10.7 c. and SSN. Further, it is observed that there is no effec. of rising solar ac.ivity on c.rrelation. Moreover, the perc.ntage variability of GPS-TEc.and the standard deviation of GPS-TEc.obtained for quiet and disturbed days show that dependenc. of GPS-TEc.on geomagnetic.c.ndition is seasonal. Also, there is a positive c.rrelation observed between GPS-TEc.and EEJ strength.

关键词： Total Elec.ron c.ntent (TEc. Equatorial Ionization Anomaly (EIA) Solar c.c.e Equatorial Elec.rojet (EEJ) Strength

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

护发品用阳离子聚合物的抗静电性能

日用化学品科学 1984年第3期 57-60页

作者： c. U. patel 孙(品山)

前言众所周知,无论清洗、干燥或梳理头发,头发之间及头发与梳子之间都发生摩擦,结果在头发上产生静电荷,从而限制了头发的轻飘和可处理性。大家也熟知,调理剂附着在头发上为头发提供了润滑作用,它使头发间的摩擦减少,并由此减少静电荷... 详细信息

前言众所周知,无论清洗、干燥或梳理头发,头发之间及头发与梳子之间都发生摩擦,结果在头发上产生静电荷,从而限制了头发的轻飘和可处理性。大家也熟知,调理剂附着在头发上为头发提供了润滑作用,它使头发间的摩擦减少,并由此减少静电荷。本文测定了各种发用产品(包括调理剂)对头发处理产生的静电荷,从而得到这些调理剂功效的有用数据。

关键词：聚合物阳离子表面活性剂香波质中阴离子洗涤剂大分子化合物阳离子正离子头发调理剂抗静电性能

Modific.tion in Atmospheric.Refrac.ivity and GPS Based TEc.as Earthquake Prec.rsors

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Positioning 2014年第2期5卷 46-52页

作者： Sheetal P. Karia Kamlesh N. Pathak Kunvar S. Yadav Nikita P. c.audhary Nilesh c. patel. Ranjan Jana Applied Physic. Department S. V. National Institute of Technology Surat India

The present paper reports the modific.tion in GPS TEc.(total elec.ron c.ntent) and atmospheric.refrac.ivity prior to the Iran earthquake that had oc.urred on 16 April 2013 in Iran (28.10°N, 62.05°E). The analysis of GPS-based TEc.from two GPS rec.ivers, Surat (21.16°N, 72.78°E) and Luc.now (26.91°N, 80.95°E ) and results of atmospheric.refrac.ivity profile for radiosonde observation stations (Shiraz, Iran and Delhi, India) around the fault line are presented in this paper. It is seen that atmospheric.refrac.ivity gets modified from 8 to 6 days prior to the earthquake at Shiraz, Iran and Delhi, India. The GPS TEc.showed variations a few days prior to the earthquake. We c.nc.ude that in searc. of prec.rsory signatures for an earthquake, both GPS TEc.and refrac.ivity are important parameters.

关键词： Total Elec.ron c.ntent Refrac.ivity Earthquake

MR成像与眼底镜检查对视网膜母细胞瘤分期的诊断价值比较

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际医学放射学杂志 2013年第4期 390-391页

作者： A. Khurana c.A. Eisenhut W. Wan K.B. Ebrahimi c. patel J.M. O 'Brien 刘学焕 Department of Radiology Pediatric Radiology Section Lucile Packard Children's Hospital Stanford UniversityStanford CA USA

目的比较MR成像与眼底镜检查对视网膜母细胞瘤分期的诊断价值。方法经机构审查委员会批准,回顾性评估36例接受眼球摘除术病人的MR及眼底镜影像。以组织病理学作为参考标准,比较两种诊断方法对于生长方式、虹膜新生血管、视网膜脱落、玻... 详细信息

目的比较MR成像与眼底镜检查对视网膜母细胞瘤分期的诊断价值。方法经机构审查委员会批准,回顾性评估36例接受眼球摘除术病人的MR及眼底镜影像。以组织病理学作为参考标准,比较两种诊断方法对于生长方式、虹膜新生血管、视网膜脱落、玻璃体种植及视神经侵犯的敏感性和特异性。通过Mc.emar’s检验对数据进行分析。结果两种方法检测不同的肿瘤生长方式的准确度差异无统计学意义（P=0.80）。眼底镜对于玻璃体种植的检出优于MRI（Pc.:0.12～0.74）∶20%（c.:0.03～0.56）]。MRI检测视神经受累突破巩膜筛板的敏感度为80%（c.:0.28～0.99）,特异度为74%（c.:0.55～0.88）。视神经无强化可排除组织病理学浸润,但视神经强化具有很高的假阳性率（22%24%）。结论眼底镜检查仍然是确定球内肿瘤范围的方法,而MR成像有助于评估球外肿瘤的范围。因此,两种检查方法对于视网膜母细胞瘤的分期各具优势和特点。要点①眼底镜检查是确定视网膜母细胞瘤球内范围的首选方法。②MR成像可以很好地评估巩膜外和球外肿瘤的范围。③MRI上视神经的强化不一定表明其受累。

关键词：视网膜母细胞瘤视网膜母细胞瘤分期眼底镜检查 MRI 敏感性和特异性

Synthesis and biologic.l study of novel 5-{(4-(6,7-dihydrothieno-[3,2-c.pyridin-5(4H)-ylsulfonyl)phenylamino)-methyl)-quinolin-8-ol and its metal c.mplexes

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

c.inese c.emic.l Letters 2011年第11期22卷 1297-1300页

作者： Paresh N.patel Khyati D.patel Hasmukh S.patel Department of c.emistry Sardar patel University Vallabh VidyanagarGujarat 388120India

A novel 5-（（4-（6,7-dihydrothieno[3,2-c.pyridin-5（4H）-ylsulfonyl）phenylamino）methyl）quinolin-8-ol（HTPSMQol） was synthesized by optimized reac.ion of 4-（6,7-dihydrothieno[3,2-c.pyridin-5（4H）-ylsulfonyl）aniline with 5-c.loromethyl-8-hydroxy-quinoline hydroc.loride（c.HQ）.Also c.mplexes of HTPSMQol were prepared by using various M（Ⅱ） metal *** c.mpounds were analyzed by spec.rosc.pic.tec.niques and sc.eened against various strains of *** results showed higher antimic.obial ac.ivity of HTPSMQol c.mpared to its metal c.mplexes and c.mparable with c.profloxac.n.

关键词： 4 5 6 7-Tetrahydrothieno[3 2-c.pyridine(THTPs) 8-Hydroxyquinoline(8HQs) Sulfonamide Antimic.obial ac.ivity

c.rrent Transport in c.pper Sc.ottky c.ntac.s to a−Plane/ c.Plane n-Type MoSe_(2)

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

c.inese Physic. Letters 2011年第8期28卷 254-257页

作者： c.K.Sumesh K.D.patel V.M.Pathak R.Srivastav Department of Physic. Faculty of Technology and EngineeringCharotar University of Science and TechnologyCHANGA 388421GujaratIndia Department of Physic. Sardar Patel UniversityVallabh Vidyanagar 388120GujatatIndia

We identic.lly prepared c.-nMoSe_(2)(a−plane)and c.-nMoSe_(2)(c.plane)Sc.ottky barrier diodes(SBDs)on the same n-type MoSe_(2) single *** effec.ive Sc.ottky barrier heights(SBHs)and ideality fac.ors were obtained from the c.rrent−voltage-temperature(I–V–T)*** barrier height and ideality fac.or,estimated from the c.nventional thermionic.emission model by assuming a Gaussian barrier distribution,are highly dependent on temperature.A notable deviation from the theoretic.l Ric.ardson c.nstant value is also observed in the c.nventional Ric.ardson *** dec.ease in the experimental barrier heightΦB0 and an inc.ease in the ideality fac.or n with a dec.ease in temperature have been explained on the basis of barrier height inhomogeneities at the metal−semic.nduc.or *** is proven that the presenc. of a distribution of barrier heights is responsible for the apparent dec.ease of the zero bias barrier *** voltage dependenc. of the standard deviation c.uses the inc.ease of the ideality fac.or at low *** value of the Ric.ardson c.nstant obtained without c.nsidering the inhomogeneous barrier heights is muc. c.oser than the theoretic.l *** c.-nMoSe_(2)(a−plane)Sc.ottky diode shows better results in c.mparison with the nMoSe_(2)(c.plane)Sc.ottky diode.

关键词： Sc.ottky temperature ideality

c.al washing sc.nario in India and future prospec.s

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of c.al Sc.enc. & Tec.nology 2016年第2期3卷 191-197页

作者： R. Venugopal J. P. patel c. Bhar Dept. of Fuel and Mineral Engineering Indian School ofMines Dhanbad Jharkhand 826004 India Washery Division Bharat Coking Coal Limited SaraidhelaDhanbad Jharkhand 828127 India Dept. of Management Studies Indian School of MinesDhanbad Jharkhand 826004 India

c.al Washing Exploration in India dates bac. to 1900s; though, first c.king c.al washeries in India were installed after independenc.. At present, most of the c.king c.al washeries are owned by Public.Sec.or c.mpanies; whereas, most of the non-c.king c.al washeries are owned by Private Sec.or. Even after six dec.des of c.al washing prac.ic.s, there has not been signific.nt development in the c.al washing intelligentsia. Indian c.al Washing industry is still dependent on imported equipment, whic. has been designed to treat c.al that is signific.ntly different from Indian c.al of drift origin. In this paper, authors have ventured into evolution of Indian c.al Washing Industry （with a foc.s on c.king c.al washing sec.or）, its present c.ndition and future prospec. for growth. The paper emphasizes need for developing indigenous solutions to industrial c.allenges and highlights importanc. of inc.eased c.ordination among ac.demia-researc. institutions and c.al industry.

关键词： c.king c.al washing Indian c.al industry History of c.al washing Future prospec.s

c.ntroversies in fec.l inc.ntinenc.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2025年第3期31卷 113-119页

作者： Andreia Albuquerque Satish S c.Rao Sc.ool of Medic.ne and Biomedic.l Sc.enc.s Fernando Pessoa UniversityGondomar 4420-096PortoPortugal Prec.nc.rous Lesions and Early c.nc.r Management Researc. Group RISE@c.-IPO(Health Researc. Network) Portuguese Oncology Institute of PortoPorto 4200-072Portugal Division of Gastroenterology and Hepatology Department of Internal MedicineAugusta UniversityAugustaGA 30912United States

Fec.l inc.ntinenc. is a c.mmon c.ndition that c.n signific.ntly impac. patients’quality of *** anal sphinc.er injury and anorec.al surgeries are c.mmon *** ultrasound and anorec.al manometry are important diagnostic.tools for evaluating *** are various treatment options,inc.uding diet,lifestyle modific.tions,drugs,biofeedbac. therapy,tibial and sac.al nerve neuromodulation therapy,and *** this editorial,we will disc.ss c.rrent c.ntroversies and novel approac.es to fec.l *** for asymptomatic.anal sphinc.er defec.s after obstetric.anal sphinc.er injury and in patients with inflammatory bowel disease is not generally rec.mmended,but may be helpful in selec.ed *** Garg inc.ntinenc. sc.re is a new sc.re that inc.udes the assessment of solid,liquid,flatus,muc.us,stress and urge fec.l *** tests suc. as translumbosac.al anorec.al magnetic.stimulation and novel therapies suc. as translumbosac.al neuromodulation therapy are promising diagnostic.and treatment options,for both fec.l inc.ntinenc. and *** biofeedbac. therapy c.n overc.me some limitations of the offic.-based *** musc.e-derived c.ll implantation of the external anal sphinc.er has been further studied as a possible treatment *** neuromodulation may be useful in sc.eroderma,c.ngenital fec.l inc.ntinenc. and inflammatory bowel disease but merits further study.

关键词： Fec.l inc.ntinenc. Endoanal ultrasound Anal sphinc.er defec.s Biofeedbac. Neuropathy Sac.al neuromodulation