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Performance and calibration of quark/gluon-jet taggers using 140 fb^(-1) of pp collisions at √s=13 TeV with the ATLAS detector

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Chinese Physics C 2024年第2期48卷 1-25页

作者： G. Aad B. Abbott K. Abeling N.J. Abicht S.H. Abidi A. Aboulhorma H. Abramowicz H. Abreu Y. Abulaiti B.S. Acharya C. Adam Bourdarios L. Adamczyk S.V. Addepalli m.J. Addison J. Adelman A. Adiguzel T. Adye A.A. Affolder Y. Afik m.N. Agaras J. Agarwala A. Aggarwal C. Agheorghiesei A. Ahmad F. Ahmadov W.S. Ahmed S. Ahuja X. Ai G. Aielli A. Aikot m. Ait Tamlihat B. Aitbenchikh I. Aizenberg m. Akbiyik T.P.A. Åkesson A.V. Akimov D. Akiyama N.N. Akolkar K. Al Khoury G.L. Alberghi J. Albert P. Albicocco G.L. Albouy S. Alderweireldt m. Aleksa I.N. Aleksandrov C. Alexa T. Alexopoulos F. Alfonsi m. Algren m. Alhroob B. Ali H.m.J. Ali S. Ali S.W. Alibocus m. Aliev G. Alimonti W. Alkakhi C. Allaire B.m.m. Allbrooke J.F. Allen C.A. Allendes Flores P.P. Allport A. Aloisio F. Alonso C. Alpigiani m. Alvarez Estevez A. Alvarez Fernandez m. Alves Cardoso m.G. Alviggi m. Aly Y. Amaral Coutinho A. Ambler C. Amelung m. Amerl C.G. Ames D. Amidei S.P. Amor Dos Santos K.R. Amos V. Ananiev C. Anastopoulos T. Andeen J.K. Anders S.Y. Andrean A. Andreazza S. Angelidakis A. Angerami A.V. Anisenkov A. Annovi C. Antel m.T. Anthony E. Antipov m. Antonelli F. Anulli m. Aoki T. Aoki J.A. Aparisi Pozo m.A. Aparo L. Aperio Bella C. Appelt A. Apyan N. Aranzabal S.J. Arbiol Val C. Arcangeletti A.T.H. Arce E. Arena J-F. Arguin S. Argyropoulos J.-H. Arling O. Arnaez H. Arnold G. Artoni H. Asada K. Asai S. Asai N.A. Asbah J. Assahsah K. Assamagan R. Astalos S. Atashi R.J. Atkin m. Atkinson H. Atmani P.A. Atmasiddha K. Augsten S. Auricchio A.D. Auriol V.A. Austrup G. Avolio K. Axiotis G. Azuelos D. Babal H. Bachacou K. Bachas A. Bachiu F. Backman A. Badea P. Bagnaia m. Bahmani A.J. Bailey V.R. Bailey J.T. Baines L. Baines O.K. Baker E. Bakos D. Bakshi gupta V. Balakrishnan R. Balasubramanian E.m. Baldin P. Balek E. Ballabene F. Balli L.m. Baltes W.K. Balunas J. Balz E. Banas m. Bandieramonte A. Bandyopadhyay S. Bansal L. Barak m. Barakat E.L. Barberio D. Barberis m. Barbero m.Z. Barel K.N. Barends T. Barillari m-S. Barisits T. Barklow P. Baron D.A. Baron mo The ATLAS Collaboration

The identification of jets originating from quarks and gluons,often referred to as quark/gluon tagging,plays an important role in various analyses performed at the Large Hadron Collider,as Standard model measurements and searches for new particles decaying to quarks often rely on suppressing a large gluon-induced *** paper describes the measurement of the efficiencies of quark/gluon taggers developed within the ATLAS Collaboration,using √s=13 TeV proton–proton collision data with an integrated luminosity of 140 fb^(-1) collected by the ATLAS *** taggers with high performances in rejecting jets from gluon over jets from quarks are studied:one tagger is based on requirements on the number of inner-detector tracks associated with the jet,and the other combines several jet substructure observables using a boosted decision tree.A method is established to determine the quark/gluon fraction in data,by using quark/gluon-enriched subsamples defined by the jet *** in tagging efficiency between data and simulation are provided for jets with transverse momentum between 500 GeV and 2 TeV and for multiple tagger working points.

关键词： ATLAS JET QUARK GLUON TAGGING

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Image of polynomials under generalized Szasz operators

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Applied mathematics(A Journal of Chinese Universities) 2021年第4期36卷 599-610页

作者： Pooja gupta mangey Ram Ramu Dubey Department of mathematics J.C.Bose University of Science and TechnologyYMCAFaridabad 121006India Department of mathematics Computer Science and Engineering Graphic Era Deemed to be UniversityDehradun 248002India

The motivation behind this paper is a sequence Sn of generalized Szasz operators using multiple Appell *** purpose of the present paper is to find the image of the polynomials under these *** find that as n→∞,S_(n)(t^(m);x)approaches to x^(m)for every m∈***,We prove the image of a polynomial of degree m under these operators is another polynomial of degree m by using the linearity of these operators.

关键词： Szaasz operator multiple Appell polynomials image of polynomials

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Corrosion Behavior and Hardness of Al-m (m:mo,Si,Ti,Cr) Alloys

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Acta metallurgica Sinica(English Letters) 2017年第4期30卷 333-341页

作者： J.Esquivel R.K.gupta Department of Chemical and Biomolecular Engineering The University of Akron Akron OH 44325-3906 USA

The corrosion behavior of Al-5 at.% Cr, A1-5 at.% Si, Al-5 at.% mo and Al-5 at.% Ti produced via casting and Al-5 at.% Cr produced by high-energy ball milling and subsequent consolidation by cold pressing was studied using potentiodynamic polarization and surface analysis following constant immersion tests. Alloys were characterized using a scanning electron microscope coupled with the energy-dispersive X-ray spectroscopy and X-ray diffraction analysis. Hardness, a representative of the strength, was also measured. The alloys produced by casting contained coarse intermetallics and therefore exhibited poor corrosion resistance. Al-5 at.% Cr alloy produced by high-energy ball milling exhibited a significantly improved corrosion resistance and hardness, which was attributed to the grain refinement to nanoscale and extended solid solubility of Cr in AL The study indicated that the high-energy ball milling was capable of producing Al alloys with improved corrosion behavior and hardness.

关键词： Corrosion mechanical alloying Casting Aluminum alloys

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Optimization of Limn_2O_4 electrode properties in a gradient-and surrogate-based framework

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Acta mechanica Sinica 2013年第3期29卷 335-347页

作者： Wenbo Du Nansi Xue Amit gupta Ann m.Sastry Joaquim R.R.A.martins Wei Shyy Department of Aerospace Engineering University of Michigan Department of mechanical Engineering Indian Institute of Technology Department of mechanical Engineering University of Michigan Department of mechanical Engineering Hong Kong University of Science and Technology Clear Water Bay

In this study, the effects of discharge rate and Limn2O4 cathode properties （thickness, porosity, particle size, and solid-state diffusivity and conductivity） on the gravimetric energy and power density of a lithium-ion battery cell are analyzed simultaneously using a cell-level model. Surrogate-based analysis tools are applied to simulation data to construct educed-order models, which are in turn used to perform global sensitivity analysis to compare the relative importance of cathode properties. Based on these results, the cell is then optimized for several distinct physical scenarios using gradient-based methods. The comple-mentary nature of the gradient-and surrogate-based tools is demonstrated by establishing proper bounds and constraints with the surrogate model, and then obtaining accurate optimized solutions with the gradient-based optimizer. These optimal solutions enable the quantification of the tradeoffs between energy and power density, and the effect of optimizing the electrode thickness and porosity. In conjunction with known guidelines, the numerical optimization frame-work developed herein can be applied directly to cell and pack design.

关键词： Lithiumion battery Optimization Surrogate modeling Porous electrode model

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Single point and asymmetric incremental forming

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Advances in manufacturing 2015年第4期3卷 253-262页

作者： J. Jeswiet D. Adams m. Doolan T. mcAnulty P. gupta Department of mechanical and materials Engineering Queen's University Kingston ON Canada Faculty of Engineering and Information Technology Australian National University Canberra Australia

This paper presents an update on single point incremental forming （SPIF） of sheet metal since 2005. It includes a description of the process with new information on the maximum forming angle, Фmax, for 5052-H32. An indepth example of the successful design and production of parts is given for industry. This includes discussion on production times and surface roughness with details that will help designers. A general design guide for users of SPIF is provided. It is based upon experience gained in the last decade. In general, materials show a trend of decreasing formability with increasing initial thickness. It is shown that for thicker sheet metal, it is recommended using large spherical tools （12.7 mm or larger）, or a large fiat-ended tool. The fiat-ended tool provides the best combination of good formability and very low surface roughness. For aluminum, galvanized steel and stainless steel, it is recommended using a fiat-ended tool. Advances in multi-pass techniques and information on successful and useful numerical models which predict forming behaviour are included. Finally, there is a discussion on future work needed in SPIF.

关键词： Single point incremental forming (SPIF) Design guide for SPIF Advances in SPIF

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The pursuit of transplantation tolerance:new mechanistic insights

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Cellular & molecular Immunology 2019年第4期16卷 324-333页

作者： Pawan K.gupta Christine m.mcIntosh Anita S.Chong maria-Luisa Alegre Department of medicine The University of ChicagoChicagoIL 60637USA Department of Surgery The University of ChicagoChicagoIL 60637USA

Donor-specific transplantation tolerance that enables weaning from immunosuppressive drugs but retains immune competence to non-graft antigens has been a lasting pursuit since the discovery of neonatal *** recently,efforts have been devoted not only to understanding how transplantation tolerance can be induced but also the mechanisms necessary to maintain it as well as how inflammatory exposure challenges its *** review focuses on recent advances regarding key peripheral mechanisms of T cell tolerance,with the underlying hypothesis that a combination of several of these mechanisms may afford a more robust and durable tolerance and that a better understanding of these individual pathways may permit longitudinal tracking of tolerance following clinical transplantation to serve as *** review may enable a personalized assessment of the degree of tolerance in individual patients and the opportunity to strengthen the robustness of peripheral tolerance.

关键词： tolerance TCR avidity Treg T cell dysfunction

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Augmenting prostate magnetic resonance imaging reporting to incorporate diagnostic recommendations based upon clinical risk calculators

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World Journal of Radiology 2022年第8期14卷 249-255页

作者： Karisma gupta Jordan D Perchik Andrew m Fang Kristin K Porter Soroush Rais-Bahrami Department of Radiology University of WashingtonSeattleWA 98195United States Department of Radiology University of Alabama at BirminghamBirminghamAL 35233United States Department of Urology University of Alabama at BirminghamBirminghamAL 35233United States O'Neal Comprehensive Cancer Center University of Alabama at BirminghamBirminghamAL 35233United States

Risk calculators have offered a viable tool for clinicians to stratify patients at risk of prostate cancer(PCa)and to mitigate the low sensitivity and specificity of screening prostate specific antigen(PSA).While initially based on clinical and demographic data,incorporation of multiparametric magnetic resonance imaging(mRI)and the validated prostate imaging reporting and data system suspicion scoring system has standardized and improved risk stratification beyond the use of PSA and patient parameters ***-naïve patients with lower risk profiles for harboring clinically significant PCa are often subjected to uncomfortable,invasive,and potentially unnecessary prostate biopsy *** risk calculator data into prostate mRI reports can broaden the role of radiologists,improve communication with clinicians primarily managing these patients,and help guide clinical care in directing the screening,detection,and risk stratification of PCa.

关键词： Prostatic adenocarcinoma multiparametric magnetic resonance imaging Nomograms Risk calculators Biopsy

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Phylogenetic analysis and biological characteristic tests of marine bacteria isolated from Southern Ocean(Indian sector)water

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Acta Oceanologica Sinica 2015年第8期34卷 73-82页

作者： gupta Pratibha BALAJI Raju PARANI m CHANDRA T S SHUKLA P KUmAR Anil BANDOPADHYAY Rajib Department of Bio-Engineering Birla Institute of Technology Department of Genetic Engineering Kattankulathur Campus SRM University microbiology and Genetics Laboratory Department of Biotechnology Indian Institute of Technology Madras Department of microbiology Maharshi Dayanand University OSSG Department National Centre for Antarctic and Ocean Research Ministry of Earth Sciences Government of India UGC Centre of Advanced Study Department of Botany the University of Burdwan

Fifty-seven bacteria were isolated from Southern Ocean （Indian sector） water samples which were collected from different latitude and longitude of the ocean. All the isolates were able to grow at 4℃, 20℃, 37℃ and tolerable NaCI concentration up to 13.5% （w/v）. 29 out of 57 isolates were identified using 16S rDNA amplification and the sequences were submitted to National Center for Biotechnology Information （NCBI）. All the isolates were classified by using Ribosomal Database Project （RDP） and found that isolates belongs to Proteobacteria and Bacteriodes. The average G＋C content was 56.4%. The isolates were screened for the presence of extracellular enzymes, viz. amylase, catalase, urease, esterase, lipase and protease. The disc diffusion method is used to screen antibiotic production by the isolates against four pathogenic bacteria, viz. Salmonella typhimurium （NCIm 2501）, Staphylococcus aureus （NCIm 2122）, Bacillus subtilis （NCIm 2193）, and Pseudomonas aeruginosa （NCIm 2036）. Nine out of 29 were found to be antibiotic producer.

关键词： Southern Ocean marine bacteria 16S rDNA phylogenetic tree antibacterial

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Despeckling of Ultrasound Images Using modified Local Statistics mean Variance Filter

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Computer modeling in Engineering & Sciences 2018年第1期114卷 19-32页

作者： Ranu gupta Rahul Pachauri Ashutosh Singh Department of Electronics and Communication Department of Computer Science Jaypee University of Engineering and Technology RaghogarhGuna(M.P.)473226India Thapar Institute of Engineering and Technology University Patiala147004India

This article presents an improved method of despeckling the ultrasound medical *** this paper a modified local statistics mean variance filter method has been *** the proposed method,more consideration is given to local statistics since local statistical features are more important rather than global *** parameters like mean square error,peak signal to noise ratio,quality index,and structural similarity index measure are calculated to analyze the quality of the despeckled image.

关键词： Local statistics speckle ultrasound image

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Enhanced performance of nano-sized SiC reinforced Al metal matrix nanocomposites synthesized through microwave sintering and hot extrusion techniques

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Progress in Natural Science:materials International 2017年第5期27卷 606-614页

作者： m.Penchal Reddy R.A.Shakoor Gururaj Parande Vyasaraj manakari F.Ubaid A.m.A.mohamed manoj gupta Center for Advanced materials Qatar University Department of mechanical Engineering National University of Singapore Department of metallurgical and materials Engineering Suez University

In the present study, nano-sized SiC(0, 0.3, 0.5, 1.0 and 1.5 vol%) reinforced aluminum(Al) metal matrix composites were fabricated by microwave sintering and hot extrusion techniques. The structural(XRD, SEm),mechanical(nanoindentation, compression, tensile) and thermal properties(co-efficient of thermal expansionCTE) of the developed Al-SiC nanocomposites were studied. The SEm/EDS mapping images show a homogeneous distribution of SiC nanoparticles into the Al matrix. A significant increase in the strength(compressive and tensile) of the Al-SiC nanocomposites with the addition of SiC content is observed. However,it is noticed that the ductility of Al-SiC nanocomposites decreases with increasing volume fraction of SiC. The thermal analysis indicates that CTE of Al-SiC nanocomposites decreases with the progressive addition of hard SiC nanoparticles. Overall, hot extruded Al 1.5 vol% SiC nanocomposites exhibited the best mechanical and thermal performance as compared to the other developed Al-SiC nanocomposites.

关键词： Al-SiC nanocomposites microwave sintering Hot extrusion mechanical properties Thermal expansion

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