|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Seismic behavior of variable frequency pendulum isolator显示文摘Earthquake performance of a flexible one-story building isolated with a variable frequency pendulum isolator (VFPI) under near-fault and far-field ground motions is investigated. The frictional forces mobilized at the interface of the VFPI are assumed to be velocity dependent. The interaction between frictional forces of the VFPI in two horizontal directions is duly considered and coupled differential equations of motion of the isolated system in the incremental form are solved iteratively. The response of the system with bi-directional interaction is compared with those without interaction. In addition, the effects of velocity dependence on the response of the isolated system are also investigated. Moreover, a parametric study is carried out to critically examine the influence of important parameters on bi-directional interaction effects of the frictional forces of the VFPI. These parameters are: the superstructure time period, frequency variation factor (FVF) and friction coefficient of the VFPI. From the above investigations, it is observed that the dependence of the friction coefficient on relative velocity of the system does not have a noticeable effect on the peak response of the system isolated with VFPI, and that the bi-directional interaction of frictional forces of the VFPI is important and if neglected, isolator displacements will be underestimated and the superstructure acceleration and base shear will be overestimated. | V. R. Panchal R. S. Jangid | 2008 | Earthquake Engineering and Engineering Vibration2008,7,2: | 5 |
| 2 | Enhancement of distillate output of double basin solar still with vacuum tubes显示文摘 | Hitesh N PANCHAL P K SHAH | 2014 | Frontiers in Energy2014,8,1: | 3 |
| 3 | 农村人口亚临床动脉粥样硬化及其与冠状动脉疾病危险因素的关系显示文摘在美国〈65岁的人群中,包括无症状的个体在内,每年有超过15万的心血管事件发生。冠状动脉钙化(coronary artery calcium,CAC)是冠状动脉疾病(coronary artery disease,CAD)的亚临床指标,可提高无症状个体的危险分层。该研究旨在评估农村人口的CAC发生率,确定CAD传统危险因素和CAC评分之间的相关性。方法:2011年1月至2012年12月,研究人员对来自阿巴拉契亚中部地区无症状个体的CAC情况进行筛查,根据Agatston钙化评分将受试者分为4种CAC水平:无(CAC=0),轻度(CAC=1~99),中度(CAC=100~399)和重度(CAC≥400)。 | 刘莉 叶鹏 Mamudu HM Paul T Veeranki SP Wang L Panchal HB Budoff M | 2015 | 中华高血压杂志2015,23,8: | 3 |
| 4 | Rodent Models for Metabolic Syndrome Research显示文摘 | Sunil K. Panchal Lindsay Brown Andrea Vecchione | 2010 | Journal of Biomedicine and Biotechnology2010,,: | 2 |
| 5 | Formulation development and characterization of cellulose acetate nitrate based propellants for improved insensitive munitions properties显示文摘Cellulose acetate nitrate(CAN) was used as an insensitive energetic binder to improve the insensitive munitions(IM) properties of gun propellants to replace the M1 propellant used in 105 mm artillery charges.CAN contains the energetic nitro groups found in nitrocellulose(NC),but also acetyl functionalities,which lowered the polymer's sensitivity to heat and shock,and therefore improved its IM properties relative to NC.The formulation,development and small-scale characterization testing of several CAN-based propellants were done.The formulations,using insensitive energetic solid fillers and high-nitrogen modifiers in place of nitramine were completed.The small scale characterization testing,such as closed bomb testing,small scale sensitivity,thermal stability,and chemical compatibility were done.The mechanical response of the propellants under high-rate uni-axial compression at,hot,cold,and ambient temperatures were also completed.Critical diameter testing,hot fragment conductive ignition(HFCI) tests were done to evaluate the propellants' responses to thermal and shock stimuli.Utilizing the propellant chemical composition,theoretical predictions of erosivity were completed.All the small scale test results were utilized to down-select the promising CAN based formulations for large scale demonstration testing such as the ballistic performance and fragment impact testing in the105 mm M67 artillery charge configurations.The test results completed in the small and large scale testing are discussed. | Thelma MANNING Jeffrey WYCKOFF Carlton ADAM Eugene ROZUMOV Kenneth KLINGAMAN Viral PANCHAL Joseph LAQUIDARA Mike FAIR John BOLOGNINI Keith LUHMANN Steve VELARDE Christine KNOTT Stephanie M.PIRAINO Kevin BOYD | 2014 | Defence Technology(防务技术)2014,10,2: | 2 |
| 6 | Enhanced propellant performance via environmentally friendly curable surface coating显示文摘Surface coating of granular propellants is widely used in a multiplicity of propellants for small, medium and large caliber ammunition. All small caliber ball propellants exhibit burning progressivity due to application of effective deterrent coatings. Large perforated propellant grains have also begun utilizing plasticizing and impregnated deterrent coatings with the purpose of increasing charge weights for greater energy and velocity for the projectile. The deterrent coating and impregnation process utilizes volatile organic compounds(VOCs) and hazardous air pollutants(HAPs) which results in propellants that need to be forced air dried which impacts air quality. Propellants undergo temperature fluctuations during their life. Diffusion coefficients vary exponentially with variations in temperature. A small temperature increase can induce a faster migration, even over a short period of time, which can lead to large deviations in the concentration. This large concentration change in the ammunition becomes a safety or performance liability. The presence of both polymeric deterrents and nitroglycerin(NG) in the nitrocellulose matrix and organic solvents leads to higher diffusion rates. This results in continued emissions of VOCs and HAPs. Conventional polymers tend to partition within the propellant matrix. In other words,localized mixing can occur between the polymer and underlying propellant. This is due to solvent induced softening of the polymer vehicle over the propellant grain. In effect this creates a path where migration can occur. Since nitrate esters, like NG, are relatively small, it can exude to the surface and create a highly unstable and dangerous situation for the warfighter. Curable polymers do not suffer from this partitioning due to 'melting' because no VOC solvents are present. They remain surface coated. The small scale characterization testing, such as closed bomb testing, small scale sensitivity, thermal stability,and chemical compatibility, will be presented. The 30 mm gun demonstration firing data at hot, cold, and ambient temperatures will also be presented. | Thelma Manning Jeffrey Wyckoff Kenneth Klingaman Viral Panchal Eugene Rozumov John Bolognini Ming Wang Young Subhash Patel | 2017 | Defence Technology(防务技术)2017,13,3: | 2 |
| 7 | ALSFRS and APPEL ALS Scores:discordance with disease progression显示文摘 | Voustianiouk A Seidel G Panchal J | 2008 | Muscle Nerve2008,37,: | 1 |
| 8 | Correlating field and laboratory data for crude oil fouling显示文摘 | ASOMANING S PANCHAL C B | 2000 | Heat Transfer En- gineering2000,21,3: | 1 |
| 9 | BSR and BHPR guideline on prescribing drugs in pregnancy and breastfeeding-Part I: stan- dard and biologic disease modifying anti-rheumatic drugs and corticosteroids 显示文摘 | Flint J Panchal S Hurrell A | 2016 | Rheumatology (Oxford)2016,55,9: | 1 |
| 10 | Synthesis and study of binuclear calix arene Schiff base Co(II)complexes as catalyst in the presence of PhIO for the catalytic oxidation of olefin显示文摘 | PATEL R V PANCHAL J G MENON S K | 2010 | J Incl Phenom Macrocycl Chem2010,67,12: | 1 |
| 11 | Estrogen and progesterone receptor isoform distribution through the menstrual cycle in uteri with and without adenomyosis显示文摘 | Mehasseb MK Panchal R Taylor AH | | 0,,07: | 1 |
| 12 | Robust predictive con- trol of a class of nonlinear systems 显示文摘 | PANCHAL B JAYWANT P K TALOLE S E | 2014 | Journal of Guidance Control and Dynamics2014,37,5: | 1 |
| 13 | Rodent models for metabolic syndrome research显示文摘 | Panchal SK Brown L | 2011 | J Biomed Biotechnol2011,10,11: | 1 |
| 14 | Long term blocking of GABA-A receptor in locus coeruleus by bilateral microinfusion of picrotoxin reduced rapid eye movement sleep and increased brain Na-K ATPase activity in freely moving normally behaving rats显示文摘 | Kaur S Panchal M Faisal M | 2004 | Behav Brain Res2004,151,12: | 1 |
| 15 | Orthodontic - periodontic intervention of pathological migra- tion of maxillary anterior teeth in advanced periodontal disease显示文摘 | Anita H Panchal Vasumati G Patel Neeta V Bhavsar | 2013 | J Indian Soc Periodontol2013,17,3: | 1 |
| 16 | Epidermal growth factor stimulates proton efflux from chondrocytic cells显示文摘 | Kevin EH Amiesha S Panchal | 2002 | J Cellular Physiology2002,192,: | 1 |
| 17 | Reduced pericardial levels of endostatin correlate with collateral development in patients with ischemic heart disease显示文摘 | Rehman J Nguyen AT | 2004 | J Am Coll Cardiol2004,43,: | 1 |
| 18 | Detection and differentiation of parasitoids(Hymenoptera:Aphidiidae and Aphelinidae)of the brown citrus aphid(Homoptera:Aphididae):species-specific polymerase chain reaction amplification of 18S rDNA显示文摘 | Weathersbee Ⅲ AA Shufran KA Panchal TD Dang PM Evans GA | | 0,,02: | 1 |
| 19 | Purification and biological characterization of bacterially expressed recombinant buffalo prolactin显示文摘 | Panchal M Muralidhar K | 2010 | PrepBiochem Biotechnol2010,40,4: | 1 |
| 20 | A study of ethanol tolerance in yeast显示文摘 | Damore T Panchal CJ Russell I | 1990 | Crit Rev Biotechnol1990,9,: | 1 |