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Effect of cold-working on corrosion induced damage in lug joints

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Defence Tech.ology（防务技术） 2024年第6期36卷 175-182页

作者： Ramanath.M.N Ch.kmath.L. Murth. h. Department of Aerospace Engineering Indian Institute of Technology-MadrasChennai 600036India Department of Aeronautical Engineering KLS Gogte Institute of TechnologyBelagavi 590008India

Lug joints are preferred joineries for transferring h.avy loads to parent components in aerospace *** experience corrosion due to environmental conditions,improper surface finish.s and rubbing displacement between th. pin and *** causes damage of different sizes and sh.pes near th. *** degradation due to corrosion-induced damage is modelled as a th.ough.pit at one of th. identified critical locations th.ough.stress *** effect of th.s pit on fatigue crack initiation life is ***-h.le is pre-stressed by cold-working and th. benefits of inducing plastic wake on th. intended performance of th. lug joint during th. damages due to corrosion are brough. out and compared with.non-cold-worked *** analysis is performed on th.s lug joint with.*** results obtained h.gh.igh. th. benefits of cold-working and th. meth.dology can be extended to damage growth.and analyse th. effect of surface treatments for better structural integrity of components of aerospace veh.cles.

关键词： Lug joint Corrosion Crack initiation Cold-working Structural integrity

Optimization of gas lift system for well performance improvement in Asmari formation:A tech.o-economic perspective

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Petroleum Research 2024年第1期9卷 115-124页

作者： h.ri Sreenivasan Jash.patel Dev Jain Setu patel Isaac Wilson Sh.nker Krish.a Drilling Cementing&Stimulation(DCS)Research CentreDepartment of Petroleum EngineeringSchool of Energy Technology(SoET)Pandit Deendayal Energy University(PDEU)Knowledge CorridorRaysanGandhinagarGujarat382426India

Well productivity in th. Asmari carbonate formation of south.est Iran h.s decreased in recent years as a result of production *** production rate must be maintained below 1500 STB/day to prevent water *** th.s study,a gas lift well is modeled using data from one of th. producing wells of th.s *** analysis is performed using lift-gas injection rates and wellh.ad pressures at different reservoir pressures and water cut conditions to optimize *** aspects are considered to optimize th. artificial gas injection rates at different tubing h.ad pressures and water cut *** th. lift-gas injection rate from 0.4 MMscf/day to 1 MMscf/day enh.nces th. oil production rate by 37.71%and 43.89%for 10%and 30%water cut conditions,*** injection rates of 5.2 MMscf/day and 5.4 MMscf/day are determined to be economically optimal for 30%water cut with.tubing h.ad pressures of 260 psig and 270 psig,respectively.

关键词： Production enh.ncement Artificial lift Gas lift Asmari carbonate formation Tech.o-economic analysis Well productivity

Magnetoh.drodynamics bio-convection flow at Casson fluid stagnation point in porous medium:Cross-diffusion effect and h.at production

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Propulsion and Power Research 2024年第3期13卷 445-457页

作者： Sneh.l patel h.rsh.d R.patel Gujarat Tech.ological University AhmedabadGujaratIndia Department of Math.matics U V Patel College of EngineeringGanpat UniversityMahesanaIndia

Th.s study examines th. effect of h.at production and radiation absorption on th. magnetoh.drodynamic Cassonfluidflow at th. stagnation point in a porous *** convert th. group offluidflow equations,wh.ch.are non-linear partial differential equations with.suitable boundary constraints,into a set of non-linear ordinary differential equations using similarity *** h.motopy analysis meth.d(h.M)solves th. converted system of ordinary differential *** draw graph. for numerous values of non-dimensional pa-rameters and tables of surface drag force,rates of h.at transfer,and mass transfer to analyze th. relationsh.p between velocityfield,temperaturefield,concentrationfield,and oth.r essential parameters involved in th. *** h.ve proven th.t th. Dufour number,radiation parameter,and h.at generation parameter elevate th.fluid temperature,wh.reas th. magnetic parameter lowers *** Cassonfluid parameter,buoyancy force parameter,and mixed convection param-eter all promotefluid movement th.ough.ut *** presented tabular data allows us to see th. trend of h.at and mass transfer rates,as well as drag force rates,against important parameters,enh.ncing our understanding of th.se rates.

关键词： Cassonfluid Magnetoh.drodynamics(Mh.) Stagnation pointflow Th.rmal radiation h.at source/sink Soret effect

Editorial for th. Special Issue on Emerging Tech.ology and Advanced Application of Nondestructive Detection for Power Equipment

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Ch.nese Journal of Electrical Engineering 2024年第1期10卷 1-2页

作者： Li J. Mei h. Li S. Tianjin University China Tsingh.a Sh.nzh.n International Graduate Sch.ol China Lanzh.u Jiaotong University China

Th. rapid development of clean and renewable energy tech.ologies represented by wind and solar energy,as well as th. continuous growth.of load demand,h.ve put forward h.gh.r requirements for th. safe operation of th. power *** performance of power equipment based on traditional dielectric materials is often limited by various defects generated during molding,transportation,assembly,and operation,wh.ch.cannot meet th. reliability requirements of power systems in th. new *** detection is an essential tech.ical meth.d in industrial development,wh.ch.can detect and evaluate th. defect and damage status of in-service equipment,key components,and materials with.ut damaging th. object.

关键词： service Application operation

Predictive active control of building structures using LQR and artificial intelligence

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Earth.uake Engineering and Engineering Vibration 2024年第2期23卷 489-502页

作者： Nirmal S.Meh.a Vish.sh. Bh.iya K.A.patel Eh.an Noroozinejad Farsangi Department of Civil Engineering SVNIT SuratGujarat 395007India Urban Transformations Research.Centre Western Sydney UniversityNSWAustralia

Th.s study presents a neural network-based model for predicting linear quadratic regulator(LQR)weigh.ing matrices for ach.eving a target response *** on th. expected weigh.ing matrices,th. LQR algorith. is used to determine th. various responses of th. *** responses are determined by numerically analyzing th. governing equation of motion using th. state-space *** training a neural network,four input parameters are considered:th. time h.story of th. ground motion,th. percentage reduction in lateral displacement,lateral velocity,and lateral acceleration,Output parameters are LQR weigh.ing *** study th. effectiveness of an LQR-based neural network(LQRNN),th. actual percentage reduction in th. responses obtained from using LQRNN is compared with.th. target percentage ***,to investigate th. efficacy of an active control system using LQRNN,th. controlled responses of a system are compared to th. corresponding uncontrolled *** trained neural network effectively predicts weigh.ing parameters th.t can provide a percentage reduction in displacement,velocity,and acceleration close to th. target percentage *** on th. simulation study,it can be concluded th.t significant response reductions are observed in th. active-controlled system using ***,th. LQRNN algorith. can replace conventional LQR control with.th. use of an active control system.

关键词： active control system linear quadratic regulator artificial neural networks state-space approach response effectiveness factor resilience

FPGA Accelerators for Computing Interatomic Potential-Based Molecular Dynamics Simulation for Gold Nanoparticles:Exploring Different Communication Protocols

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Computers, Materials & Continua 2024年第9期80卷 3803-3818页

作者： Ankitkumar patel Srivath.an Vasudevan Satya Bulusu Department of Electrical Engineering Indian Institute of Technology IndoreIndore453552India Department of Ch.mistry Indian Institute of Technology IndoreIndore453552India

Molecular Dynamics(MD)simulation for computing Interatomic Potential(IAP)is a very important h.gh.Performance Computing(h.C)*** simulation on particles of experimental relevance takes h.ge computation time,despite using an expensive h.gh.end *** computing,a combination of th. Field Programmable Gate Array(FPGA)and a computer,is proposed as a solution to compute MD simulation *** such.h.terogeneous computation,communication between FPGA and Computer is *** such.MD simulation,explained in th. paper,is th.(Artificial Neural Network)ANN-based IAP computation of gold(Au_(147)&Au_(309))*** simulation calculates th. forces between atoms and th. total energy of th. ch.mical *** work proposes th. novel design and implementation of an ANN IAP-based MD simulation for Au_(147)&Au_(309) using communication protocols,such.as Universal Asynch.onous Receiver-Transmitter(UART)and Eth.rnet,for communication between th. FPGA and th. h.st *** improve th. latency of MD simulation th.ough.h.terogeneous computing,Universal Asynch.onous Receiver-Transmitter(UART)and Eth.rnet communication protocols were explored to conduct MD simulation of 50,000 *** th.s study,computation times of 17.54 and 18.70 h.were ach.eved with.UART and Eth.rnet,respectively,compared to th. conventional server time of 29 h.for Au_(147) *** results pave th. way for th. development of a Lab-on-a-ch.p application.

关键词： Eth.rnet h.rdware accelerator h.terogeneous computing interatomic potential(IAP) MDsimulation periph.ral component interconnect express(PCIe) UART

Colorimetric Sensor for Detection of Tabun Mimic Dieth.l Cyanoph.sph.nate

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Journal of Analysis and Testing 2024年第3期8卷 374-384页

作者： Madh. Bala Dh.eraj Pandey Nikita patel Sh.etal Yadav Abh. Sh.rma Department of Medicinal Ch.mistry National Institute of Pharmaceutical Education and Research RaebareliTransit Campus

h.rein,a colorimetric ch.mosensor （probe 7） was designed and synth.sized for sensing dieth.l cyanoph.sph.nate （DCNP）,a Tabun nerve agent *** sensitive,selective,fast response and ph.tostable probe 7 in dimeth.lsulfoxide （DMSO）responded to DCNP at low concentrations with.visual naked eye color ch.nge from pink to pale yellow and displayed unresponsive beh.viour against various interferences except for copper ions,wh.ch.can be di?erentiated by adding eth.lene diamine wh.re th. yellow color persisted in th. case of DCNP but turned to pink in th. case of copper ***,th. yellow aqueous solution of probe 7 at ph.10 and 12 turned colorless against th. response of *** limit of detection（LOD） of probe 7 was found to be 50 nmol/L in an aqueous basic solution at ph.10 for th. detection of *** formation of th. cyclized product was elucidated by1h.and31P NMR nuclear magnetic resonance (1h.NMR,31P NMR),Fourier transform infrared spectroscopy （FTIR）,and h.gh.resolution mass spectrometry （h.MS） ***?lter paper and silica plate loaded with.probe 7 were fabricated for real-time and on-site detection of DCNP.

关键词： Ch.mosensor Colorimetric Fluorescence Tabun mimic

Differentiating rh.th.ic h.gh.amplitude delta with.superimposed(poly)spikes from extreme delta brush.s:limitations of standardized nomenclature and implications for patient management

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World Journal of Pediatrics 2024年第8期20卷 764-773页

作者： Rene Andrade-Mach.do Elh.m Abush.nab Namrata D.patel Avantika Singh Ch.ldren’s h.spital of Wisconsin Wauwatosa:Milwaukee 8915 W Connell CtMilwaukeeWI53226USA

Background Following th. standardized nomenclature proposed by th. American Clinical Neuroph.siology Society(ACNS),rh.th.ic h.gh.amplitude delta activity with.superimposed spikes(Rh.DS)can be reported as an extreme delta brush.EDB).Th. clinical implications of similar electrograph.c patterns being reported as Rh.DS versus EDB are important to *** aim to review th. electrograph.c ch.racteristics of Rh.DS,evaluate wh.th.r Rh.DS is seen in oth.r neurological disorders,and identify th. similar and unique ch.racteristics between Rh.DS and EDB to ultimately determine th. most accurate way to differentiate and report th.se *** believe th.t th. differentiation of Rh.DS and EDB is important as th.re is a vast difference in th. diagnostic approach.and th. medical management of associated underlying *** source We conducted an extensive search.on MEDLINE and Pubmed utilizing various combinations of *** for“gamma polymerase and EEG”,or“Rh.DS”or“Alpers syndrome and EEG”or“EEG”AND“Alpers–h.ttenloch.r syndrome”.Results Th.ee articles were found to be focused on th. description of“Rh.DS”pattern in Alpers *** publication to date were found wh.n search.ng for th. terms“EDB”AND“ch.ldren”,AND“infant”AND“adolescent”excluding“enceph.litis”and“neonate”.Alth.ugh.Rh.DS and EDB appear as similar EEG patterns,meticulous analysis can differentiate *** is not exclusive to patients with.Alpers–h.ttenloch.r syndrome and may manifest in regions beyond th. posterior h.ad *** to eye-opening and response to anesth.sia can be two oth.r elements th.t h.lp in th. differentiation of th.se *** Rh.DS is not exclusive to patients with.Ah. and may manifest in regions beyond th. posterior h.ad *** to eye-opening and response to anesth.sia are features th.t h.lp in th. differentiation of th.se patterns.

关键词： Alpers-h.ttenloch.r syndrome Autoimmune enceph.litis Extreme delta brush Neurological disorder Polyspike Rh.th.ic delta activity Rh.th.ic h.gh.amplitude delta activity Seizure

h.patocellular carcinoma presenting as an extrah.patic mass:A case report and review of literature

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 2241-2252页

作者： Wei Kelly Wu Krutika patel Ch.ndrasekh.r Padmanabh.n Kamran Idrees Department of Surgery Vanderbilt University Medical CenterNashvilleTN 37232United States Department of Path.logy Microbiology and ImmunologyVanderbilt University Medical CenterNashvilleTN 37232United States Division of Surgical Oncology and Endocrine Surgery Department of SurgeryVanderbilt University Medical CenterNashvilleTN 37232United States

BACKGROUND h.patocellular carcinoma(h.C)is a primary liver tumor generally diagnosed based on radiograph.c *** disease is typically associated with.increased tumor diameter,multifocality,and vascular *** report a case of a patient wh. presented with.extrah.patic h.C metastasis to a portocaval lymph.node with.occult h.patic primary on computed tomograph.(CT).We review th. literature for cases of extrah.patic h.C presentation with.ut known h.patic lesions and discuss strategies to differentiate between metastatic and ectopic *** SUMMARY A 67-year-old male with.remotely treated h.patis C was referred for evaluation of an enlarging portocaval,mixed cystic-solid *** CT evaluations demonstrated steatosis,but no cirrh.sis or liver *** ultrasound demonstrated a normal-appearing pancreas,biliary tree,and *** needle aspiration yielded atypical *** differential diagnosis included duodenal or pancreatic cyst,lymph.proliferative cyst,stromal or mesench.mal lesions,nodal involvement from gastrointestinal or h.matologic malignancy,or duodenal gastrointestinal stromal *** review by a multidisciplinary tumor board,th. patient underwent open surgical resection of a 5.2 cm×5.5 cm retroperitoneal mass with.path.logy consistent with.moderately-differentiated *** resonance imaging(MRI)subsequently demonstrated a 1.2 cm segment VIII h.patic lesion with.late arterial enh.ncement,fatty sparing,and intrinsic T1 *** fetoprotein was 23.3 ng/*** patient was diagnosed with.h.C with.portocaval nodal ***:We surveyed th. literature for h.C presenting as extrah.patic masses with.ut h.story of concurrent or prior intrah.patic *** identified 18 cases of extrah.patic h.C ultimately found to represent metastatic lesions,and 30 cases of extrah.patic h.C found to be primary,ectopic *** h.patocellular carcinoma can seldomly present with.extrah.patic metastasis in th. setting of

关键词： Extrah.patic Metastasis Portocaval Lymph.node Case report