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Mohit Kumar,J. S. Saini,H. Bhunia 대한기계학회 2020 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.34 No.3
The present work is to examine the failure modes and failure loads in pin joints prepared from carbon/epoxy composite laminates with addition of multiwalled carbon nanotubes (MWCNT) as nanofillers. The effect of MWCNT in the carbon/epoxy composites was studied by adding 0.1 to 0.5 wt.% content in the epoxy resin. The maximum tensile strength was observed upto 0.3 wt.%, which is due to the enhanced interfacial bond strength and the efficient stress transfer between the stiff MWCNT and soft polymer matrix through refined polymer/MWCNT interface. The nanocomposite laminates for pin joints were prepared using optimised 0.3 wt.% of MWCNT. The different geometric combinations of width to diameter (W/D) and edge to diameter (E/D) ratios were varied from 2 to 5, respectively. The numerical analysis was performed using Hashin damage criteria along with progressive damage analysis to compare the predicted failure loads with the experimental results.
Sonu,Mohit Tyagi,A. Kelkar,A. Sahu,M. Sonawane,P.S. Sarkar,A. Pandey,D.B. Sathe,G.D. Patra,T. Vincent,S.G. Singh,R.B. Bhatt Korean Nuclear Society 2023 Nuclear Engineering and Technology Vol.55 No.7
For the precise measurements of special nuclear materials (SNM) including Pu and Am isotopes, we have used phoswich detector combination of two single crystal scintillators of Gd<sub>3</sub>Ga<sub>3</sub>Al<sub>2</sub>O<sub>12</sub>:Ce and CsI:Tl. High detection efficiency and sensitivity along with high figure of merit for the discrimination of these phoswich detectors ensures the detection and discrimination of thermal neutrons and gammas from spontaneous fission of Pu and other isotopes in presence of high gamma background. Using this detector, the low energy gammas, which is stopped completely in 1mm thick disc of GGAG, can be also discriminated from high energies gamma and shows linearity in wide range of sample quantities. By changing only the appropriate shielding, the similar setup was used for thermal neutron detection and shows a very good linearity over wide range. The quantity of a test sample was also calculated accurately by using the measured calibrated plot.
Trends of arthroscopy publications in PubMed and Scopus
( Srinivas B. S. Kambhampati ),( Abhishek Vaish ),( Raju Vaishya ),( Mohit Kumar Patralekh ) 대한슬관절학회 2021 대한슬관절학회지 Vol.33 No.-
Purpose: Arthroscopy is an established sub-speciality in orthopaedics. With advancing technology, instrumentation and implants, this sub-speciality has seen an explosion of knowledge and techniques since its inception. The indications for arthroscopic management are increasing and, hence, the number of publications on this topic. There has been no study looking into the bibliometrics of all publications within this speciality. The purpose of this study was to look into the trends of published articles on arthroscopy from PubMed and Scopus including studying their citation numbers. Materials and methods: We set out to look into the number of publications from the earliest up to 2019 and their trends and citation numbers in PubMed and Scopus. We also performed a VOS viewer analysis of MeSH terms and titles of publications to look at research trends over time. Results: There were 41,149 articles published on PubMed since 1955 and 50,373 articles on Scopus since 1939. The total number of citations were 912,630 for 38,338 cited articles. With 2864 publications in 2019, there was a more than four-fold increase from the number published in the year 2000. The knee joint was the most frequently published joint with an increasing trend in hip arthroscopy. Cohort studies were the most common with 13,180 articles followed by Reviews with 5746 articles. The top 10 authors, universities and journals were listed along with citation numbers. We analysed the trends of publications for each joint and compared them. Yearly citations have progressively increased to reach a maximum of 45,407 in 2007. Arthroscopy was the most published and cited journal on this topic. The Journal of Bone and Joint Surgery (JBJS) (Am) had the most citations per article. The USA and Hospital for Special Surgery, New York were the most published country and university, respectively. Conclusions: There is a healthy growth of publications on the subject of arthroscopy with a steep increase in the number of publications and citations in recent years. VOS Viewer analysis showed an evolution of research and practice in the field of arthroscopy. Recommendations were made for databases and search engines to improve on the search and analysis of such studies in the future. Level of evidence: 4
Development of Ag/WO3/ITO Thin Film Memristor Using Spray Pyrolysis Method
T. D. Dongale,S.V. Mohite,A. A. Bagade,P. K. Gaikwad,P.S. Patil,R. K. Kamat,K.Y. Rajpure 대한금속·재료학회 2015 ELECTRONIC MATERIALS LETTERS Vol.11 No.6
The unique nonlinear relationship between charge and magnetic flux along with the pinched hysteresis loop in I-V plane provide memory with resistance combinations of attribute to Memristor which lead to their novel applications in non volatile memory, nonlinear dynamics, analog computations and neuromorphic biological systems etc. The present paper reports development of Ag/WO3/ITO thin film memristor device using spray pyrolysis method. The structural, morphological and electrical properties of the thin film memristor device are further characterized using x-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and semiconductor device analyzer. The memristor is simulated using linear dopent drift model to ascertain the theoretical and experimental conformations. For the simulation purpose, the width of doped region (w) limited to the interval [0, D] is considered as a state variable along with the window function characterized by the equation f (x) = w (1 − w). The reported memristor device exhibits the symmetric pinched hysteresis loop in I-V plane within the low operating voltage (±1 V).
V.V. Ganbavle,S.V. Mohite,김진혁,K.Y. Rajpure 한국물리학회 2015 Current Applied Physics Vol.15 No.2
Sub-stoichiometric tungsten trioxide (WO3) thin films are deposited onto the glass substrates by spray pyrolysis technique using ammonium metatungstate. Effect of solution concentration on structural, morphological, optical, electrical and NO2 sensing properties of WO3 thin films is studied. Films are polycrystalline with monoclinic crystal structure and sub-stoichiometric as observed form the XRD and XPS studies, respectively. The SEM and AFM images show micro grained structure and surface roughness increases with increase in solution concentration. The PL studies revealed that the majority of the defects are the oxygen vacancies. From XPS and PL studies it is observed that, oxygen vacancies decrease with increase in solution concentration. The dielectric constant of the films as a function of frequency is in concurrence with resistivity measurements. Films show reproducible and reversible gas response at various operating temperatures and gas concentrations. Highest sensor response (38%) towards 200 ppm NO2 concentration is observed for the film with 15 mM solution concentration at moderate operating temperature (200 ℃). Pd sensitization enhanced gas response to 68% and improved kinetics of the sensor. Films are highly selective towards NO2 as compared with the various gases such as SO2, LPG, NH3 and H2S.
Parag Sancheti,Vijay D. Shetty,Mandeep S. Dhillon,Sheila A. Sprague,Mohit Bhandari 대한정형외과학회 2017 Clinics in Orthopedic Surgery Vol.9 No.3
Background: Access to early knee osteoarthritis treatment in low and middle income nations is often believed to be limited. We conducted a cross-sectional study in India to assess prior access to treatment among patients presenting with knee pain to specialist orthopaedic clinics. Methods: The multi-centre, cross-sectional study included patients presenting with knee pain at 3 hospitals in India. Patients who met the inclusion criteria and provided informed consent completed a questionnaire designed to assess patient demographics, socioeconomic status, knee pain, treatment method, and patient’s knowledge on osteoarthritis (OA). Their orthopaedic surgeons also completed a questionnaire on the severity of patient’s OA and their recommended treatments. The impact of demographic characteristics on the prescription of treatment options was analyzed using logistic regression. Results: A total of 714 patients met the eligibility criteria and participated in this study. The majority of patients had been experiencing pain for less than 1 year (64.8%) and had previously been prescribed medications (91.6%), supplements (68.6%), and nonpharmacological (81.9%) treatments to manage their knee OA. Current treatment recommendations included oral medications (83.3%), intra-articular injections (29.8%), and surgical intervention (12.7%). Prescription of oral medications was related to younger age, lack of deformities, and lower Kellgren-Lawrence grades (p < 0.01). Patients treated in private hospital settings were more likely to have been previously treated with medications (range, 84.3% to 92.6%; p < 0.01) and physical treatments (range, 61.8% to 84.8%; p < 0.01) than patients treated at government hospitals. Conclusions: Contrary to the perception, our findings suggest a similar proportion of early knee OA treatment between India and North America.
M.B. Rajendra Prasad,Parvin S. Tamboli,Ravi V. Ingle,Kiran D. Diwate,Prashant K. Baviskar,B.R. Sankpal,K.C. Mohite,Sandesh R. Jadkar,Habib M. Pathan 한국물리학회 2017 Current Applied Physics Vol.17 No.12
Geometrical thickness of photoelectrode is one of the important design considerations that can substantially improve the device performance in Quantum Dot Sensitized Solar cells. The present work deals with the influence of the Photoanode (PA) thickness on the photovoltaic performance of these excitonic solar cells. Optical, morphological and electrochemical properties of these films are studied using UV eVisible spectroscopy, Scanning electron microscopy and Cyclic Voltammetry. Sandwich solar cells assembled using these PAs are further characterized using Electrochemical Impedance Spectroscopy and Chronoamperometry to investigate the electron transfer processes occurring at the sensitized photoelectrode/ Electrolyte interface. These cells are then evaluated for their photovoltaic performance using JV characteristics. The results obtained are explained qualitatively invoking the thickness dependent parameters like Light harvesting efficiency and Electron transfer yield to establish the effect of PA thickness on the solar cell performance.