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Study of Type-B QPOs Observed in Black Hole X-Ray Binary Swift j1728.9-3613

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Research in Astronomy and Astrophysics 2024年第3期24卷 1-9页

作者： Raj.kumar Astrophysical Sciences Division Bhabha Atomic Research CentreMumbai 400085India Homi Bhabha National Institute Mumbai 400094India

We report the detection of type-B quasi-periodic oscillation(QPO)of the black hole X-ray binary Swift j1728.9-3613 observed by NICER during the 2019 outburst.A type-B QPO was observed for the first two days and it disappeared as flux increased,but again appeared at∼7.70 Hz when flux was dramatically *** source was found in the soft intermediate state during these *** further studied the energy dependence of the *** found that QPO was observed only for a higher energy range implying that the origin of QPO is possibly due to the corona emitting higher energy photons by the inverse Compton *** variation of spectral parameters can be explained with the disk truncation *** fractional rms was found to be monotonically increased with *** phase lag spectrum followed the“U-shaped”*** rms and phase lag spectrum are modeled and explained with the single-component Comptonization model vkompthdk.

关键词： X-rays binaries-accretion-accretion disks-X-rays individual (Swift j1728.9-3613)

Surface Modification Aspects for Improving Biomedical Properties in Implants:A Review

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Acta Metallurgica Sinica(English Letters) 2024年第2期37卷 213-241页

作者： j.Sharath kumar Rakesh kumar Rajeev Verma Industrial and Production Department Dr B R Ambedkar National Institute of Technology JalandharJalandharPunjab144008India

The primary focus during surgery is to ensure successful implantation by achieving long-term and stable fixation of *** surgery is now more focused on the development of novel biomaterials intended to improve implant *** obtain a better understanding of metal implants,this article investigated the causes of material failures in certain cases and analysed a few case *** interaction between the implant and bone tissue was a crucial aspect of successful implantation,and this study explored the factors influencing this interaction as well as ways to improve *** modern approaches used for modifying implant surfaces were systematically illustrated and briefly *** spray coatings were often favoured because of their wide range of coating materials,but other substantial surface modifications(such as friction stir processing and laser surface texturing)were also used for a selection of ***,implant surfaces with desirable features,such as biocompatibility,antibacterial properties,corrosion resistance,and wear resistance,were essential for optimising implant *** systematic review's main aim is to provide exhaustive reference information and a broad overview to advance the production and design of orthopaedic implants.

关键词： Biomaterials Surface treatments Thermal spray coatings Antibacterial Biocompatibility Corrosion resistance Wear resistance

NEW STRATEGIES FOR MANAGING PLANT DISEASES ON SMALL FARMS

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NEW STRATEGIES FOR MANAGING PLANT DISEASES ON SMALL FARMS

EVALUATION OF NATIVE （COLD TOLERANT） FLUORESCENT PSEUDOMONADS FOR PLANT GROWTH PROMOTION AND MANAGEMENT OF ROOT ROT COMPLEX IN VEGETABLE CROPS IN INDIAN HIMALAYAS

The ⅩⅤth International Plant Protection Congress

作者： j.kumar U.S.SINGH G.B.Pant University of Agriculture ＆ Technology Hill Campus Ranichauri 249 199 Uttaranchal India G.B.Pant University of Agriculture ＆ Technology Pantnagar 263 145 Uttaranchal India.

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EVALUATION OF NATIVE （COLD TOLERANT） FLUORESCENT PSEUDOMON...

Mathematical modelling of ball and plate system with experimental and correlation function-based model validation

The ⅩⅤth International Plant Protection Congress

作者： Y.K.NEGI D.PRABHA S.K.GARG j.kumar Pant University of Agriculture and Technology Ranichauri 249199 Uttaranchal India Pant University of Agriculture and Technology Ranichauri 249199 Uttaranchal India Dept.of Microbiology R.M.L.Awadh University Faizabad U.P. India Pant University of Agriculture and Technology Ranichauri 249199 Uttaranchal India

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Control Theory and Technology 2024年第2期22卷 326-341页

作者： T.R.Dil kumar S.j.Mija Department of Electrical Engineering National Institute of Technology CalicutKozhikode673601KeralaIndia

The ball and plate system is an inherently nonlinear under actuated benchmark system used for validating the performance of various control schemes. A mathematical model depicting the dynamics close to that of the system is very much required for such a test bed. In this correspondence, the complete nonlinear model, a simplified nonlinear model, and a linearized model of the ball and plate system are developed. The system comprises a ball and plate mechanism and a rotary servo unit. The ball and plate mechanism is modelled using the Euler–Lagrange method, whereas the rotary servo subsystem is modelled from the first principles. The nonlinear model of the combined system is developed by including the dynamics of the servo motor with gear and rolling resistance between the ball and the plate. The simplified nonlinear model of the system is obtained with suitable assumptions. The model is linearized around the operating point using the jacobian. The validity of the developed models is investigated through correlation function analysis. The open-loop response of the three models, viz., nonlinear, simplified nonlinear, and linearized models, is analyzed in the MATLAB/Simulink platform. Since the open-loop system is unstable, the experimental validation of the model is performed with a double-loop PSO (particle swarm optimization) PID control scheme.

关键词： Ball and plate system Correlation function Model validation Particle swarm optimization(PSO) PSO PID controller

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水稻糯性的遗传分析

杂交水稻 1990年第5期5卷 45-48页

作者： j.kumar G.S.Khush B.O.juliano 刘进明王联芳湖南省水稻研究所

利用１个糯稻品种与４个直链淀粉含量分别为高、中、低及极低的非糯稻品种杂交，以研究直链淀粉含量的遗传。分析了亲本、Ｆ１、Ｆ２、Ｂ１Ｆ１及Ｂ２Ｆ１单粒种子的直链淀粉含量，发现不能合成直链淀粉的糯稻亲本与４个不同在链淀粉含... 详细信息

利用１个糯稻品种与４个直链淀粉含量分别为高、中、低及极低的非糯稻品种杂交，以研究直链淀粉含量的遗传。分析了亲本、Ｆ１、Ｆ２、Ｂ１Ｆ１及Ｂ２Ｆ１单粒种子的直链淀粉含量，发现不能合成直链淀粉的糯稻亲本与４个不同在链淀粉含量的非糯亲本之间，直链淀粉含量的差异是由一主效基因所控制。直链淀粉含量的基因剂量效应对分离方式和选择效果有很大影响。早期分离世代，可通过对胚乳外观的选择，提高对直链淀粉含量的选择效果。

关键词：水稻糯性品质遗传胚乳稻米

Optimized protoplast isolation and transfection with a breakpoint:accelerating Cas9/sgRNA cleavage efficiency validation in monocot and dicot

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aBIOTECH 2024年第2期5卷 151-168页

作者： Debasmita Panda Subhasis Karmakar Manaswini Dash Swagat kumar Tripathy Priya Das Sagar Banerjee Yiping Qi Sanghamitra Samantaray Pradipta kumar Mohapatra Mirza j.Baig Kutubuddin A.Molla ICAR National Rice Research Institute CuttackOdisha 753006India Department of Botany Ravenshaw UniversityCuttackOdisha 753003India Department of Plant Science and Landscape Architecture University of MarylandCollege ParkMD 20742USA

The CRISPR-Cas genome editing tools are revolutionizing agriculture and basic biology with their simplicity and precision ability to modify target genomic ***-predicted guide RNAs(gRNAs)often fail to induce efficient cleavage at target *** target loci are inaccessible due to complex chromatin ***,there is no suitable tool available to predict the architecture of genomic target sites and their ***,significant time and resources are spent on performing editing experiments with inefficient *** in vitro-cleavage assay could provide a rough assessment of gRNA efficiency,it largely excludes the interference of native genomic *** in-vivo testing gives a proper assessment of the cleavage ability of editing reagents in a native genomic ***,we developed a modified protocol that offers highly efficient protoplast isolation from rice,Arabidopsis,and chickpea,using a sucrose gradient,transfection using PEG(polyethylene glycol),and validation of single guide RNAs(sgRNAs)cleavage efficiency of *** have optimized various parameters for PEG-mediated protoplast transfection and achieved high transfection efficiency using our protocol in both monocots and *** introduced plasmid vectors containing Cas9 and sgRNAs targeting genes in rice,Arabidopsis,and chickpea *** dual sgRNAs,our CRISPRdeletion strategy offers straightforward detection of genome editing success by simple agarose gel *** sequencing of PCR products confirmed the editing efficiency of specific ***,we demonstrated that isolated protoplasts can be stored for up to 24/48 h with little loss of viability,allowing a pause between isolation and *** high-efficiency protocol for protoplast isolation and transfection enables rapid(less than 7 days)validation of sgRNA cleavage efficiency before proceeding with stable *** isolation and transfection method can als

关键词： Protoplast Genome editing Transgene-free edited plants Rice Chickpea

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一种估测芒果品种对畸形病感病性的方法

福建热作科技 1993年第2期18卷 46-48页

作者： j.kumar S.P.S.Beniwal 莫贱友

在进行定量评估芒果品咱对畸形病感病性时,发现最高严重程度随病株率而增加,病指数最高.在29个评比品种中,只有3个品咱(Asaugia Davban,Langra Rampur和Malda Handle)是抗病的(病指数为零).常规品种如:Dashebr;Chausa;Langra Gorakhpur... 详细信息

在进行定量评估芒果品咱对畸形病感病性时,发现最高严重程度随病株率而增加,病指数最高.在29个评比品种中,只有3个品咱(Asaugia Davban,Langra Rampur和Malda Handle)是抗病的(病指数为零).常规品种如:Dashebr;Chausa;Langra Gorakhpur和Mallihabade是感病的(病指数>20%).

关键词：芒果品种畸形病感病性估测法

Laparoscopic management of remnant gall bladder with stones: Lessons from a tertiary care centre's experience

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Laparoscopic, Endoscopic and Robotic Surgery 2024年第1期7卷 27-33页

作者： Gilbert Samuel jebakumar jeevanandham Muthiah Loganathan jayapal R.Santhosh kumar Siddhesh Tasgaonkar K.S.Santhosh Anand j.K.A.jameel Sudeepta kumar Swain K.j.Raghunath Prasanna kumar Reddy Tirupporur Govindaswamy Balachandar Department of Surgical Gastroenterology Apollo HospitalsChennai 600006India Department of General Surgery Apollo HospitalsChennai 600006India Department of Minimal Access Surgery Apollo HospitalsChennai 600006India

Objective:Laparoscopic cholecystectomy is currently the gold standard for treating symptomatic gallstone *** its success,approximately 10%of patients may experience persistent biliary symptoms,leading to the post-cholecystectomy syndrome.A remnant gallbladder with cystic duct or bile duct stones is one of the causes of this *** objective of this study was to shed light on the clinical manifestations,evaluation,therapeutic strategies,and outcomes associated with laparoscopic management of symptomatic remnant ***:This was a retrospective study,conducted over a five-year period(january 2017 to December 2022)at Apollo Hospitals in South *** patients who underwent laparoscopic completion cholecystectomy for a remnant gall bladder were *** following data were collected:patient demographics,symptoms,preoperative investigations,intraoperative details and post operative ***:In total,36 patients were included and *** majority of patients were male(25,69.4%),with a mean age of 50.7±12.1 *** most common presentation was pain in the upper abdomen or right upper quadrant region(24,66.7%).The laparoscopic approach was attempted in all patients,with a success rate of 94.4%.Two patients required conversion to open *** fistula to the colon was observed in one *** was observed in 7 patients(19.4%),and stone clearance was successfully achieved using endoscopic retrograde cholangiopancreatography in all patients ***:Incomplete gall bladder removal either intentionally or unintentionally leaves a remnant gall bladder that is at risk for stone formation and *** who have this clinical entity with symptoms require a redo or complete cholecystectomy,a complex procedure associated with certain *** study highlights the feasibility and safety of laparoscopic completion cholecystectomy for the management of remnant gallbladder

关键词： Remnant gall bladder Stump cholecystitis Subtotal cholecystectomy Laparoscopic completion cholecystectomy