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Study of plasma parameters of coaxial plasma source using triple Langmuir probe and Faraday cup diagnostics

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Plasma Science and Technology 2024年第4期26卷 94-100页

作者： Sunil KANCHI rohit SHUKLA Archana SHARMA Pulsed Power and Electromagnetics Division Bhabha Atomic Research CentreVisakhapatnam 531011India Homi Bhabha National Institute Mumbai 400085India Beam Technology Development Group Bhabha Atomic Research CentreMumbai 400085India

Coaxial plasma guns are a type of plasma source that produces plasma which propagates radially and axially controlled by the shape of the ground electrode, which has attracted much interest in several applications. In this work, a 120° opening angle of CPG nozzle is used as a plasma gun configuration that operates at the energy of 150 J. The ionization of polyethylene insulator between the electrodes of the gun produces a cloud of hydrogen and carbon *** triple Langmuir probe and Faraday cup are used to measure plasma density and plasma temperature. These methods are used to measure the on-axis and off-axis plasma divergence of the coaxial plasma gun. The peak values of ion densities measured at a distance of 25 mm on-axis from the plasma gun are(1.6±0.5)×10^(19)m^(-3)and(2.8±0.6)×10^(19)m^(-3)for hydrogen and carbon plasma respectively and the peak temperature is 3.02±0.5 eV. The mean propagation velocity of plasma is calculated using the transit times of plasma at different distances from the plasma gun and is found to be 4.54±0.25 cm/μs and 1.81±0.18 cm/μs for hydrogen and carbon plasma respectively. The Debye radius is obtained from the measured experimental data that satisfies the thin sheath approximation. The shot-to-shot stability of plasma parameters facilitates the use of plasma guns in laboratory experiments. These types of plasma sources can be used in many applications like plasma opening switches, plasma devices, and as plasma sources.

关键词： coaxial plasma source triple Langmuir probe Faraday cup plasma density plasma temperature

A Comprehensive Review of Design and Technological Advancements across Various Types of Solar Dryers

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Energy Engineering 2024年第10期121卷 2851-2892页

作者： Ganesh There rohit Sharma School of Mechanical Engineering VIT Bhopal UniversitySehore466114India

This analysis investigates the widespread use of solar drying methods and designs in developing countries,particularly for agricultural products like fruits,vegetables,and bee *** techniques like hot air oven drying and open sun drying have drawbacks,including nutrient loss and exposure to harmful *** and thermal drying are viewed as sustainable solutions because they rely on renewable *** article highlights the advantages of solar drying,including waste reduction,increased productivity,and improved *** is also cost-effective and *** review study provides an overview of different solar drying systems and technologies used in poor nations,aiming to identify the most effective and efficient *** focus is on comparing current models of solar dryers for optimal *** review underscores the importance of solar drying as a long-term,eco-friendly approach to drying food in developing *** review aims to evaluate how using solar-powered drying techniques can enhance food preservation,minimize waste,and enhance the quality and marketability of agricultural *** paper will specifically focus on examining the efficacy of these methods for drying bee pollen and pinpointing where enhancements can be made in their advancement.

关键词： Renewable energy solar dryers open sun drying design parameters bee pollen drying

Influence of BPPV and Meniere's Disease on Cognitive Abilities: A Questionnaire-Based Study

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Journal of Otology 2024年第1期19卷 10-18页

作者： rohit Bhattacharyya Animesh Barman Freddy Antony All India Institute of Speech and Hearing MysoreMysuruIndia

The vestibular system connects the inner ear to the midbrain and subcortical structures and can affect cognition. Patients with vertigo often experience cognitive symptoms such as attention deficits, memory problems, and spatial perception difficulties. This study aimed to explore the cognitive impairments associated with Benign paroxysmal positional vertigo(BPPV) and Meniere's Disease(MD). A non-experimental group comparison design was used with 107 participants divided into three groups: Group I(clinically normal), Group II(BPPV), and Group III(MD). Participants completed a questionnaire with 10 cognition-related questions, and their responses were scored. The data were found to be non-normally distributed. The analysis revealed a significant difference in scores between Group I and both Group II and Group III. Chi-square tests showed that the responses to cognition-related questions varied among the groups, with Group II exhibiting more cognitive problems. Associated conditions like hypertension, diabetes, and hearing loss did not significantly influence the responses within each group. This study suggests a significant relationship between cognitive problems and patients with BPPV and MD. However, there was no association found between the cognitive problems experienced in BPPV and MD patients. These findings align with previous research indicating that vestibular disorders can lead to deficits in spatial memory, attention, and other cognitive functions. By understanding the link between cognition and vestibular disorders, we can improve diagnosis and rehabilitation services to enhance the quality of life for these patients.

关键词： BPPV Meniere's disease Cognition Questionnaire

Photocatalytic application of magnesium spinel ferrite in wastewater remediation:A review

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Journal of Magnesium and Alloys 2024年第2期12卷 490-505页

作者： rohit Jasrotia Nikhil Jaswal Jyoti Prakash Chan Choon Kit Jagpreet Singh Abhishek Kandwal School of Physics and Materials Science Shoolini UniversityBajholSolanH.P.India Himalayan Centre of Excellence in Nanotechnology Shoolini UniversityBajholH.P.India INTI International University Putra NilaiNegeri SembilanMalaysia Department of Chemistry University Centre for Research&Development Chandigarh UniversityMohali140413PunjabIndia Shenzhen Institute of Advanced Technology Chinese Academy of SciencesChina

This review paper explores the efficacy of magnesium ferrite-based catalysts in photocatalytic degradation of organic contaminates(antibiotic and dyes).We report the influence of different doping strategies,synthesis methods,and composite materials on the degradation efficiency of these *** analysis reveals the versatile and promising nature of magnesium ferrite-based catalysts,offering the valuable insights into their practical application for restoring the *** to the smaller band gap and magnetic nature of magnesium ferrite,it holds the benefit of utilising the broader spectrum of light while also being *** in-depth analysis of magnesium ferrites'photocatalytic mechanism could lead to the development of cheap and reliable photocatalyst for the wastewater *** concise review offers a thorough summary of the key advancements in this field,highlighting the pivotal role of the magnesium ferrite based photocatalysts in addressing the pressing global issue of organic pollutants in wastewater.

关键词： Magnesium ferrite Wastewater Dyes Antibiotics Photocatalytic degradation

Delivery of Bull Dog Calf from a Hydroallantoic Murrah Buffalo

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Journal of Advances in International Veterinary Research 2022年第1期4卷 1-4页

作者： Ankit Ahuja Vasu Sharma Amit Sharma rohit mankotia Tyson Negi Pankaj Sood Department of Veterinary Clinical Complex DGCN College of Veterinary and Animal SciencesCSK HPKVPalampurIndia Department of Veterinary Gynaecology and Obstetrics DGCN COVASCSK HPKVPalampurH.P.176062India

An 8 years old Murrah buffalo in its 5^(th) party was presented with the history of 9 month of gestation and sudden bilateral abdominal distension since last 25 *** was 7 anorectic with pale mucus membrane and had staggering *** vaginum examination revealed closed cervix with intact cervical *** transrectal palpation only the fluid in the uterus could be *** on history and clinical examination findings,it was diagnosed as *** was induced using cloprostenol and *** this an intracervical injection of closprostenol was also given on 6 o’clock and 12 o’clock position(250μg each)of external os to hasten the cervical dilation.A dead bulldog calf was removed with manual traction after 26 hours of initial *** was concluded that the cloprostenol and dexamethasone are effective for the induction of parturition in animals suffering from hydroallantois provided fluid from the allantoic sac is removed slowly.

关键词： Bull dog calf Hydrollantois Parturition

Progress in metal oxide-based electrocatalysts for sustainable water splitting

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Materials Reports(Energy) 2024年第3期4卷 19-34页

作者： Aasiya S.Jamadar rohit Sutar Susmita Patil Reshma Khandekar Jyotiprakash B.Yadav Vacuum Techniques and Thin Film Laboratory USICShivaji UniversityKolhapur416004MaharashtraIndia

Metal oxide-based electrocatalysts are promising alternatives to platinum group metals for water splitting due to their low cost,abundant raw materials,and impressive *** review covers recent progress in various metal oxides tailored for hydrogen and oxygen evolution reactions,discussing their crystal structure,composition,and surface modification influence on *** like surface engineering,doping,and nanostructuring are evaluated for enhancing catalytic activity and *** key considerations for commercialization are highlighted,emphasizing ongoing research,innovation,and future scope to drive widespread adoption of water-splitting technology for a cleaner and sustainable future.

关键词： Metal oxide HER OER Electrocatalyst Overall water spilling

PACK-CXL *** therapy for bacterial,fungal,and mixed infectious keratitis:a prospective randomized phase 3 trial

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Eye and Vision 2024年第1期10卷 10-20页

作者： Farhad Hafezi Mohammed Hosny rohit Shetty Boris Knyazer Shihao Chen Qinmei Wang Hassan Hashemi Emilio A.Torres‑Netto 无 Center for Applied Biotechnology and Molecular Medicine(CABMM) University of ZurichZurichSwitzerland ELZA Institute DietikonSwitzerland. Faculty of Medicine University of GenevaGenevaSwitzerland Department of Ophthalmology Medical University of WenzhouWenzhouChina USC Roski Eye Institute University of Southern California Los AngelesLos AngelesUSA Department of Ophthalmology University of CairoCairoEgypt Narayana Nethralaya Eye Hospital and the Postgraduate Institute of Ophthal‑mology BangaloreIndia Department of Ophthalmology Soroka University Medical CenterBen-Gurion University of the NegevBeershebaIsrael Noor Ophthalmology Research Center Noor Eye HospitalTehranIran University Hospital Zurich ZurichSwitzerland. the PACK-CXL Working Group

Background:Infectious keratitis is a major cause of global *** tested whether standalone photoactivated chromophore corneal cross-linking(PACK-CXL)may be an efective frst-line treatment in early to moderate infectious keratitis,compared with standard antimicrobial ***:This is a randomized,controlled,multinational phase 3 clinical *** in fve centers in Egypt,India,Iran,Israel,and China,aged≥18 years,with infectious keratitis of presumed bacterial,fungal,or mixed origin,were randomly assigned(1:1)to PACK-CXL,or antimicrobial *** measures included healing,defned as time to re-epithelialization of the corneal epithelial defect in the absence of infammatory activity in the anterior chamber and clearance of stromal *** success was defned as the complete resolution of signs of ***:Between July 21,2016,and March 4,2020,participants were randomly assigned to receive PACK-CXL(n=18)or antimicrobial therapy per American Academy of Ophthalmology(AAO)guidelines(n=21).No participants were lost to *** eyes were excluded from the epithelialization time analysis due to treatment failure:two in the antimicrobial therapy group,and two in the PACK-CXL *** rates were 88.9%(16/18 patients)in the PACK-CXL group and 90.5%(19/21 patients)in the medication *** was no signifcant diference in time to complete corneal re-epithelialization(P=0.828)between both treatment ***:PACK-CXL may be an alternative to antimicrobial drugs for frst-line and standalone treatment of early to moderate infectious keratitis of bacterial or fungal origin.

关键词： Photoactivated chromophore Corneal cross-linking Infectious keratitis Corneal melting PACK-CXL

Clinical outcomes of triceps reflecting anconeus pedicle and olecranon osteotomy approach for distal humerus intercondylar fractures

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World Journal of Orthopedics 2024年第6期15卷 570-577页

作者： rohit Ailani Sanjeev Kumar Bhuyan Brejesh Kumar Prasad Amit Kumar Namrata Dawani Department of Orthopaedics Lovee Shubh HospitalLucknowUttar Pradesh 226002India Department of Orthopaedics Gauhati Medical CollegeGuahati 781032India Department of Orthopaedics ESIC Medical College and HospitalFaridabadHaryana 121001India Department of Orthopaedics All India Institute of Medical SciencesKalyaniWest Bengal 741245India Department of Obstetric and Gynecology Kannauj Medical CollegeKannaujUttar Pradesh 209732India

BACKGROUND The preferred treatment for distal humeral intercondylar fractures is open reduction and internal *** there is consensus about the posterior approach,several posterior approaches have been *** is debatable as to which approach is *** To compare triceps reflecting anconeus pedicle(TRAP)and olecranon osteotomy approaches for internal fixation of distal humeral intercondylar *** In total,40 cases of Arbeitsgemeinschaft für Osteosynthesefragen/Association of the Study of Internal Fixation type C,closed,and Gustilo type I intercondylar humeral fractures were *** ranged in age from 18 years to 70 *** patients were randomized into two groups:TRAP group and olecranon osteotomy group,with 20 cases in *** were followed up at 6 wk,3 months,6 months,and 12 *** outcomes were measured in terms of flexion-extension arc,Disabilities of Arm,Shoulder and Hand score,and Mayo Elbow Performance *** The mean age was 43.2 years in the TRAP group and 37.5 years in the olecranon osteotomy *** mean operative time and mean duration of hospital stay in the TRAP group were significantly higher than in the olecranon osteotomy group(119.5 vs 111.5 min and 9.85 vs 5.45 d,respectively).The mean arc of flexion-extension,Disabilities of Arm,Shoulder and Hand score,and Mayo Elbow Performance Score were comparable without any significant difference in the groups at the 12-month follow-up(107.0 vs 106.2,18.3 vs 15.7,and 84.2 vs 86.2,respectively).Ulnar paresthesia and superficial infections were comparable in both groups(2 cases vs 3 cases and 3 cases vs 2 cases,respectively).Hardware prominence was significantly higher in the olecranon osteotomy group,mostly due to tension band *** Both approaches were equivalent,but there is a need for further study including higher numbers of subjects and longer study duration to prove the benefits of one approach over the other.

关键词： Elbow joint Humeral fracture Osteotomy Internal Fracture fixation

Chronic social defeat stress‑induced depression reduces BCG efficacy by promoting regulatory T‑cell levels in mice

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Animal Diseases 2024年第2期4卷 115-126页

作者： rohit Tyagi Xi Chen Atika Dhar Bing Yang Wei Zhou Aikebaier Reheman Yingying Lei Gang Cao National Key Laboratory of Agricultural Microbiology College of Veterinary MedicineHuazhong Agricultural UniversityWuhan 430070China National Institute of Immunology New Delhi 110067India College of Animal Science and Technology Tarim UniversityAlar 843300China Bio‑Medical Center Huazhong Agricultural UniversityWuhan 430070China

Despite the initial successes of the Bacillus Calmette-Guerin(BCG)vaccine in children,its efficacy against tuberculosis is highly *** is a lack of understanding about how mental conditions influence BCG ***,we used the chronic social defeat stress(CSDS)model to explore the effects of depression on BCG vaccination *** observed higher lung and spleen bacterial loads and a lower organ index in depressed compared to BCG ***,a relatively lower T cell protective efficacy was observed in both compared to control and BCG mice via a mycobacterium growth inhibition assay(MGIA).Cytokine expression of IL-12p40,IL-1β,IL-17,TNF-αand IFN-γwas reduced,whereas the expression of IL-10 and IL-5 was increased in the spleen of both compared to BCG ***,the proportions of CD4^(+)IFN-γ^(+),CD8^(+)IFN-γ^(+)T lymphocytes and CD4^(+)effector/central memory T cells were reduced in the splenocytes of the depressed BCG *** promotes CD4^(+)regulatory T cells(Treg)and myeloid-derived suppressor cell(MDSC)generation in depressed mice,contributing to the reduced pro-inflammatory immune response upon BCG *** study provides insight into the decreased protective immunity by BCG vaccination attributable to depression in mice.

关键词： BCG Vaccine efficacy Treg Immune suppression Depression