THE TAIWANESE-AMERICAN OCCULTATION SURVEY PROJECT STELLAR VARIABILITY. II. DETECTION OF 15 VARIABLE STARS

Mondal, S.,Lin, C. C.,Chen, W. P.,Zhang, Z.-W.,Alcock, C.,Axelrod, T.,Bianco, F. B.,Byun, Y.-I.,Coehlo, N. K.,Cook, K. H.,Dave, R.,Kim, D.-W.,King, S.-K.,Lee, T.,Lehner, M. J.,Lin, H.-C.,Marshall, S. American Institute of Physics 2010 The Astronomical journal Vol.139 No.5

<P>The Taiwanese-American Occultation Survey (TAOS) project has collected more than a billion photometric measurements since 2005 January. These sky survey data—covering timescales from a fraction of a second to a few hundred days—are a useful source to study stellar variability. A total of 167 star fields, mostly along the ecliptic plane, have been selected for photometric monitoring with the TAOS telescopes. This paper presents our initial analysis of a search for periodic variable stars from the time-series TAOS data on one particular TAOS field, No. 151 (R.A. = 17<SUP>h</SUP>30<SUP>m</SUP>6<img entity='fs' SRC='http://ej.iop.org/icons/Entities/fs.gif' ALT='fs' ALIGN='BASELINE' />7, decl. = 27°17'30'', J2000), which had been observed over 47 epochs in 2005. A total of 81 candidate variables are identified in the 3 deg<SUP>2</SUP> field, with magnitudes in the range 8 < R < 16. On the basis of the periodicity and shape of the light curves, 29 variables, 15 of which were previously unknown, are classified as RR Lyrae, Cepheid, δ Scuti, SX Phonencis, semi-regular, and eclipsing binaries.</P>

The Effect of Head Loading on Cervical Spine in Manual Laborers

Dave Bharat R.,Krishnan Ajay,Rai Ravi Ranjan,Degulmadi Devanand,Mayi Shivanand 대한척추외과학회 2021 Asian Spine Journal Vol.15 No.1

Study Design: A prospective case–control study.Purpose: To determine the effect of axial loading on the cervical spine when weights are carried on the head.Overview of Literature: Traditionally, carrying weights on the head has been a common practice in developing countries. The laborers working in agriculture, construction, and other industries, as well as porters at railway platforms, are required to lift heavy weights. Since controversy exists regarding carrying weights on the head, we decided to evaluate its effect on the cervical spine.Methods: The study comprised 62 subjects. Of this number, 32 subjects (group A) were unskilled laborers from the construction industry; the other 30 subjects (group B) were in the control group and had never previously carried heavy weights on their heads. Cervical spine radiographs were taken for all the 62 subjects. Subjects in group A were asked to carry a load (approximately 35 kg) on their heads and walk for about 65 m, with their cervical spine radiographs taken afterward.Results: The mean ages of patients in groups A and B were 27.17 and 25.75 years, respectively. The mean cervical lordosis observed in group A (18.96°) was dramatically less compared with group B (25.40°), showing a further decrease in head loading (3.35°). Five subjects had a reversal of lordosis (−5.61°). A statistically significant reduction in disc height and listhesis was observed when the load was carried on the head with a further decrease after walking with the load. Accelerated degenerative changes, particularly affecting the upper cervical spine, were observed in head loaders.Conclusions: Carrying a load on the head leads to accelerated degenerative changes, which involve the upper cervical spine more than the lower cervical spine and predisposes it to injury at a lower threshold. Thus, alternative methods of carrying loads should be proposed.

Coconut husk as a biosorbent for methylene blue removal and its kinetics study

Dave, Shailesh R.,Dave, Vaishali A.,Tipre, Devayani R. Techno-Press 2012 Advances in environmental research Vol.1 No.3

Biosorption of methylene blue (MB) from aqueous solution was studied with respect to the point of zero charge of coconut husk, dye concentration, particle size, pH, temperature, as well as adsorbent and NaCl concentration using coconut husk biomass. Amongst Langmuir and Freundlich adsorption isotherms studied, Langmuir adsorption isotherm showed better agreement. Pseudo second order kinetics model was found to be more suitable for data presentation as compared to pseudo first order kinetics model. Also, involvement of diffusion process was studied using intraparticle diffusion, external mass transfer and Boyd kinetic model. Involvement of intraparticle diffusion model was found to be more relevant (prominent) as compared to external mass transfer (in) for methylene blue biosorption by the coconut husk. Moreover, thermodynamic properties of MB biosorption by coconut husk were studied. Desorption of methylene blue from biomass was studied with different desorbing agents, and the highest desorption achieved was as low as 7.18% with acetone, which indicate stable immobilization. Under the experimental conditions MB sorption was not significantly affected by pH, temperature and adsorbent concentration but low sorption was observed at higher NaCl concentrations.

On Seeing A Khajuraho Sculpture

Mukund R. Dave 한인문화연구원 1982 한인문화논총 Vol.1 No.-

Risk Factors and Surgical Treatment for Recurrent Lumbar Disc Prolapse: A Review of the Literature

Bharat R. Dave,Devanand Degulmadi,Ajay Krishnan,Shivanand Mayi 대한척추외과학회 2020 Asian Spine Journal Vol.14 No.1

We aim to present the current evidence on various risk factors and surgical treatment modalities for recurrent lumbar disc herniation (rLDH). Using PubMed, a literature search was performed using the Mesh terms “recurrent disc prolapse,” “herniated lumbar disc,” “risk factors,” and “treatment.” Articles that were published between January 2010 and May 2017 were selected for further screening. A search conducted through PubMed identified 213 articles that met the initial screening criteria. Detailed analyses showed that 34 articles were eligible for inclusion in this review. Sixteen articles reported the risk factors associated with rLDH. Decompression alone as a treatment option was studied in seven articles, while 11 articles focused on different types of fusion surgery (anterior lumbar interbody fusion, posterior lumbar interbody fusion, open transforaminal lumbar interbody fusion [TLIF], and minimally invasive surgery-TLIF). Management of the rLDH requires consideration of the possible risk factors present in individual patients before primary and at the time of second surgery. Both, minimally invasive and conventional open procedures are comparably effective in relieving leg pain, and minimally invasive techniques offer advantage over the other technique in terms of tissue sparing. Non-fusion surgeries involve the risk of lumbar disc herniation re-recurrence, and the patient may require a third (fusion) surgery.

Optimization of Cu, Hg and Cd removal by Enterobacter cloacae by ferric ammonium citrate precipitation

Singh, Rashmi R.,Tipre, Devayani R.,Dave, Shailesh R. Techno-Press 2014 Advances in environmental research Vol.3 No.4

Iron precipitating organisms play a significant role in the formation of ferric hydroxide precipitate, which acts as strong adsorbent for toxic metal. In this respect four different iron precipitating cultures were isolated from Hutti gold mine surface winze water sample on citrate agar medium. The best isolate was screened out for metal removal study on the basis of fast visual iron precipitation. The selected isolate was identified as Enterobacter sp. based on routine biochemical tests and Biolog GN microplate results and as Enterobacter cloacae subsp. dissolvens by 16S rRNA gene sequence analysis (GenBank accession number EU429448). Influence of medium composition, medium initial pH, the influence of inoculum size, effect of various media and ferric ammonium citrate concentration were studied on metal removal in shake flask experiments. Under the optimized conditions studied, E. cloacae showed $94{\pm}2$, $95{\pm}2$ and $70{\pm}2%$ of cadmium, copper and mercury removal from a simulated waste in shake flask studies. In lab scale column reactor more than 85% of copper and mercury removal was achieved.

Using Gaussian Mixtures for Hindi Speech Recognition System

R. K. Aggarwal,M. Dave 보안공학연구지원센터(IJSIP) 2011 International Journal of Signal Processing, Image Vol.4 No.4

A study on the machinability of advanced arc PVD AlCrN‑coated tungsten carbide tools in drilling of CFRP/titanium alloy stacks

Dave Kim,Sam R. Swan,Bin He,Viktor Khominich,Eric Bell,Seok‑Woo Lee,Tae‑Gon Kim 한국탄소학회 2021 Carbon Letters Vol.31 No.3

This study aims to investigate the effect of an aluminum chromium nitride (AlCrN) coating on tool wear and hole quality in the conventional drilling process of carbon fiber-reinforced plastic (CFRP) composites, titanium alloy (Ti), and CFRP–Ti stack workpieces popular in the aerospace industry. The advanced arc plasma acceleration (APA) method of physical vapor deposition (PVD) was used for all AlCrN coatings. The drilling experiments were conducted with uncoated drills as well as AlCrN-coated drills. When drilling CFRP only, the AlCrN coating was removed at the drill cutting edges and the margin area, which suggests the carbon fibers abraded the coatings. When drilling Ti only, the AlCrN-coated drill mitigated the Ti adhesion formation, which resulted in less tool wear. In addition, hole quality for both CFRP and Ti was improved when the coating was used versus the uncoated tool. The machinability of CFRP–Ti stacks in the drilling process was improved by utilizing the advanced AlCrN coating on the WC tool in terms of drilling forces and hole quality parameters such as average hole size, average hole roundness, hole surface roughness, and Ti exit burr height.

Comparative inhibitory screening of phytoconstituents from Capparis decidua against various ailments targets: a novel In-silico semblance ADME/Tox profiling studies

Rajendra S. Dave,Deepak Kumar Sharma,Kamlesh R. Shah 경희대학교 융합한의과학연구소 2023 Oriental Pharmacy and Experimental Medicine Vol.23 No.4

Capparis decidua is a valuable medicinal, xerophytic plant. We aim for the first time to compare the therapeutic potency of phytochemicals employing In-silico semblance, and ADME/Tox profiling studies. A solid computational strategy may ensure financial benefits in the phases of drug development, as well as innovation and reliable outcomes. This work investigated analgesic hypocholesterolemia, antidiabetic, and anti-inflammatory potency of Capparis decidua (CD) extract using MeOH:nH:EtAc (1:1:1, v:v:v) a solvent. Hence, GC–MS were used to characterize CD extract, and further, based on Ligand– Protein interaction, revealed Campesterol as a major inhibitor found to be possessing a higher interaction affinity (In kcal/ mole; 2OYE; − 13.4, 1IR3; − 8.4, 3QNT; − 11.3, 3NUP; − 12.3, respectively), which leads to higher therapeutic potential. Further, various components were found to be bioactive including Neophytadiene, Palmitoleic acid, á-Sitosterol, Oleic acid, Rhodopin, 17-Pentatriacontene, Squalene, Piperine, 1-and, Eicosanol. Our results burlier proponent that Capparis decidua could help as a pain reliever, anti-inflammatory, and hypocholesterolemia problem, but more research is needed.

Kuiper Belt Object Occultation Survey Nature of Occultations

Alcock C,Dave R.,Giammarco J.,Lehner M.,Chen W.-P.,Lee T.,King S.-K.,Wang A.,Wang S.-Y.,Wen C.-Y.,Cook K.,Marshall S.,Porrata R.,Byun Y. I,de Pater I,Liang C.,Rice J.,Lissauer J. 한국천문학회 2003 天文學會報 Vol.28 No.1