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Spectroscopic properties of Δ baryons

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Chinese Physics C 2021年第2期45卷 119-125页

作者： Chandni Menapara zalak shah Ajay Kumar Rai Department of Applied Physics Sardar Vallabhbhai National Institute of TechnologySurat-395007GujaratIndia

The resonance state of theΔ baryon,which exists in four isospin(I=3/2)states,has been studied using the hypercentral constituent quark model(hCQM)with a simple linear potential with added first order *** calculated data ranges for 1S-5S,1P-5P,1D-4D and 1F-2F are given,with possible spin-parity assignments for all the *** magnetic moments have also been obtained for all four ***\pidecay channel width has been calculated for a few *** linear nature of the data has been verified through Regge trajectories.

关键词： mass spectra light baryon magnetic moment Regge trajectory

Spectroscopy of light N~* baryons

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Chinese Physics C 2019年第3期43卷 49-55页

作者： zalak shah Keval Gandhi Ajay Kumar Rai Department of Applied Physics Sardar Vallabhbhai National Institute of Technology

We present the masses of N baryons up to 3300 MeV. The radial and orbital excited states are determined using hypercentral constituent quark model with the first-order correction. The obtained masses are compared with the experimental results and other theoretical predictions. The Regge trajectories are also determined in(n, M^2) and(J, M^2) planes. Moreover, the magnetic moments with J^p =(1^+/2,1^-/2) are calculated. We also calculates the Nπ decay width of excited nucleons.

关键词： baryons potential model Regge trajectories

Mass spectra and Regge trajectories of Λ_c^+,∑_c^0,Ξ_c^0 and Ω_c^0 baryons

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Chinese Physics C 2016年第12期40卷 10-21页

作者： zalak shah Kaushal Thakkar Ajay Kumar Rai P. C. Vinodkumar Department of Applied Physics Sardar Vallabhbhai National Institute of Technology Surat Gujarat 395007 India Department of Applied Sciences &: Humanities GIDC Degree Engineering college Abrama Navsari 396406 India Department of physics Sardar Patel University V.V. Nagar Anand 388120 India

We calculate the mass spectra of the singly charmed baryons （∧＋ c, ∑0 c,[I]0c and Ω0 c） using the hypercentral constituent quark model （hCQM）. The hyper color Coulomb plus linear potential is used to calculate the masses ofpositive （up to JP = 7＋/2 ）9 and negative （up to JP = 9-/2）parity excited states. The spin-spin, spin-orbital and tensorinteraction terms are-also incorporated for mass spectra. We have compared our results with other theoretical and lattice QCD predictions for each baryon. Moreover, the known experimental results are also reasonably close to our predicted masses. By using the radial and orbital excitation, we construct Regge trajectories for the baryons in the （n,M2） plane and find their slopes and intercepts. Other properties of these baryons, like magnetic moments, radiative transitions and radiative decay widths, are also calculated successfully.

关键词： baryons potential model Regge trajectories

Betulin protects against isoproterenol-induced myocardial injury by inhibiting NF-κB signaling and attenuating cardiac inflammation and oxidative stress in rats

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Asian Pacific Journal of Tropical Biomedicine 2024年第6期14卷 236-244页

作者： Hital shah Tejal Gandhi Gujarat Technological University AhmedabadGujarat 382424India Department of Pharmacology Anand Pharmacy CollegeAnandGujarat 388001India

Objective:To investigate the cardioprotective potential of betulin in isoproterenol(ISO)-induced myocardial injury in ***:Wistar rats were divided into five groups(n=10):normal,ISO,nebivolol 5 mg/kg,and betulin(20&40 mg/kg).Nebivolol and betulin were administered orally for 29 ***(85 mg/kg)was administered subcutaneously on day 27 and day 28 to induce myocardial *** day 29,blood was collected for determination of cardiac markers,and hemodynamic parameters were *** levels of oxidative stress markers and the gene expressions of apoptotic markers and inflammatory mediators were ***,2,3,5-triphenyltetrazolium chloride staining and histopathological analysis were also ***:Betulin reduced the size of myocardial infarction,decreased elevated levels of cardiac enzymes,and maintained hemodynamic *** also inhibited ISO-induced upregulation of Bax,caspase-3,NF-κB,and IL-6,enhanced endogenous antioxidant enzymes,and reduced lipid ***,pretreatment with betulin alleviated myocardial ischemic damage,as reflected by reduced myonecrosis,edema,and inflammatory ***:Betulin exhibits strong cardioprotective activity against ISO-induced myocardial injury by anti-inflammatory,anti-apoptotic,and antioxidant activities.

关键词： NF-κB Isoproterenol Betulin Myocardial injury Oxidative stress Inflammation Apoptosis

Detection of internal crack growth in polyethylene pipe using guided wave ultrasonic testing

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 319-329页

作者： Jay Kumar shah Hao Wang Said El-Hawwat Centre of Advanced Infrastructure and Transportation RutgersThe State University of New JerseyNJ 08854USA Department of Civil and Environmental Engineering RutgersThe State University of New JerseyNJ 08854USA

Despite the success of guided wave ultrasonic inspection for internal defect detection in steel pipes,its application on polyethylene(PE)pipe remains relatively *** growth of internal cracks in PE pipe severely affects its pressure-holding capacity,hence the early detection of internal cracks is crucial for effective pipeline maintenance *** study extends the scope of guided wave-based ultrasonic testing to detect the growth of internal cracks in a natural gas distribution PE *** experiments and a finite element model were planned to study the wave-crack interaction at different stages of axially oriented internal crack growth with a piezoceramic transducer-based setup arranged in a pitch-catch *** dispersion analysis supplemented with preliminary experiments was performed to isolate the optimal inspection frequency,leading to the selection of the T(0,1)mode at 50-kHz for the investigation.A transmission index based on the energy of the T(0,1)mode was developed to trace the extent of simulated crack *** findings revealed an inverse linear correlation between the transmission index and the crack depth for crack growth beyond 20%crack depth.

关键词： polyethylene pipes internal cracks guided wave ultrasonic testing torsional modes finite element modeling

A novel fractional case study of nonlinear dynamics via analytical approach

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Applied Mathematics(A Journal of Chinese Universities) 2024年第2期39卷 276-290页

作者： Hassan Khan Adnan Khan Rasool shah Dumitru Baleanu Department of Mathematics Abdul Wali khan UniversityMardan 23200Pakistan Department of Mathematics Faculty of Arts and SciencesCankaya UniversityAnkara 06530Turkey Institute of Space Sciences Magurele-BucharestRomania

The present work describes the fractional view analysis of Newell-Whitehead-Segal equations,using an innovative *** work is carried with the help of the Caputo operator of fractional *** analytical solutions of some numerical examples are presented to confirm the reliability of the proposed *** derived results are very consistent with the actual solutions to the problems.A graphical representation has been done for the solution of the problems at various fractional-order ***,the solution in series form has the desired rate of convergence and provides the closed-form *** is noted that the procedure can be modified in other directions for fractional order problems.

关键词： Homotopy Perturbation method Shehu transform Newell-Whitehead-Segel Equation Caputo operator

PETG:Applications in Modern Medicine

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Engineered Regeneration 2024年第1期5卷 45-55页

作者： Catherine Yan Corinne Kleiner Aaron Tabigue Veer shah Gregory Sacks Darshi shah Vincent DeStefano Renaissance School of Medicine at Stony Brook University Stony BrookNYUSA Department of Biology Niagara UniversityLewistonNYUSA Stony Brook University Stony BrookNYUSA Department of Mechanical and Industrial Engineering Northeastern UniversityBostonMAUSA

Polyethylene terephthalate glycol,PETG,is a miscible,transparent thermoplastic known to have strong tensile properties,high ductility,as well as resistance to heat and chemical *** may be manufactured in several ways,most notably 3D printing *** such,PETG has emerged as a viable biomaterial for a variety of medical applications such as tissue engineering,dentistry,optometry,vascular health,cardiology,orthopedics,neurology,gynecology,and *** also serves a valuable role in biomedical research and engineering by offering improvements in cell studies,drug carriers,and anti-bacterial *** medical research and innovation utilizing PETG will better characterize its value as an inexpensive and versatile biomaterial.

关键词： Polyethylene terephthalate glycol Tissue Engineering 3D Printing Clinical Applications Biomedical Research

EPQ model with the effect of inflation and reliability for partial trade credit under fuzzy and cloudy fuzzy environment

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Journal of Management Analytics 2024年第1期11卷 110-134页

作者： Supriya Tiwari Kunal shah Kajal Bhimani Department of Science and Humanities Apollo Institute of Engineering&TechnologyGTUAhmedabadIndia Department of Mathematics SMMPISRKadi Sarva VishwavidyalayaGandhinagarIndia AVAerials 401 Swarnim Business Hub-1 New Chamunda SocietyGodrej Garden CityGotaAhmedabadIndia

The proposed study offers the first-of-its-kind economic production quantity model for deteriorating items having a demand rate to be price dependent under the effect of inflation and reliability with partial trade *** model is extended under an uncertain environment by assuming inventory parameters to be triangular fuzzy numbers and cloudy triangular fuzzy *** objective of the study is to maximize the profit of the inventory system and to identify the most suitable environment for the proposed *** are verified using the numerical ***,the comparative study is presented to justify the nature of fuzzy and cloudy fuzzy *** analysis under all environments is conducted to identify the most sensitive parameters of all.

关键词： EPQ partial trade credit inflation reliability triangular fuzzy number cloudy triangular fuzzy number

Robust Optimal Framework for Doubly Fed Induction Generator with Uncertain Dynamics

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Protection and Control of Modern Power Systems 2024年第5期9卷 129-141页

作者： Yongfeng Lü Xiaowei Zhao Priyank shah College of Electrical and Power Engineering Taiyuan University of TechnologyTaiyuan 030024China Intelligent Control and Smart Energy(ICSE)Research Group School of EngineeringThe University of WarwickCoventry CV47ALUK

A robust optimal framework is designed herein to mitigate the oscillatory dynamics in a doubly fed induction generator(DFIG)even in the presence of network disturbances and input *** address uncertain dynamics,herein,a novel transformation formula is developed for a wind energy conversion *** unscented Kalman filter is applied to estimate the un-measured internal states of the wind energy conversion system using terminal *** detailed convergence and stability analyses of the presented framework are investigated to validate its ***,comparative modal analyses are carried out to demonstrate the improvement in the damping of critical low-frequency oscillatory modes using the presented *** simulation results demonstrate satisfactory performance under various operating scenarios,such as increasing and decreasing wind speed and varying the terminal *** comparative performance is demonstrated to validate the effectiveness of the presented framework over that of the state-of-the-art *** Terms—Optimal control,power system,renew-able energy sources,wind energy conversion system,doubly fed induction generator.

关键词： Optimal control power system renew-able energy sources wind energy conversion system doubly fed induction generator