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Full Dyna.ic Model for Liquid Sloshing Simula.ion in Cylindrica. Ta.k Sha.e

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World j.urna. of Mecha.ics 2024年第4期14卷 55-72页

作者： Oma. Noui Moha.ed Boua.a.a.Ma.c j. Richa.d Depa.tment of a.plied Science University of Quebec at Chicoutimi Chicoutimi Canada Depa.tment of Mecha.ica. Engineering Laval University Quebec Canada

This study presents a.comprehensive full dyna.ic model designed for simula.ing liquid sloshing beha.ior within cylindrica. ta.k structures. The model employs a.discretiza.ion a.proa.h, representing the liquid a. a.network of interconnected spring-da.per-ma.s systems. Key a.pects include the a.a.ta.ion of liquid discretiza.ion techniques to cylindrica. la.era. cross-sections a.d the ca.cula.ion of stiffness a.d da.ping coefficients. Externa. forces, simula.ing va.ious vehicle ma.euvers, a.e a.so integra.ed into the model. The resulting system of equa.ions is solved using Ma.le Softwa.e with the Runge-Kutta.Fehlberg method. This model ena.les a.cura.e prediction of liquid displa.ement a.d pressure forces, offering va.ua.le insights for ta.k design a.d fluid dyna.ics a.plica.ions. Ongoing refinement a.ms to broa.en its a.plica.ility a.ross different liquid types a.d ta.k geometries.

关键词： Fluid-Structure Intera.tion Equiva.ent Mecha.ica. Model Liquid Discretiza.ion Spring-Ma.s Model Spring-Ma.s Network Liquid Simula.ion

Kikuchi-Fuj.moto Disea.e: a.Ca.e of Lympha.enitis Following COVID-19 Infection

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Open j.urna. of Rheuma.ology a.d a.toimmune Disea.es 2024年第3期14卷 118-124页

作者： j.spreet Dhillon Bha.va. j. Ma.eta.Neela.ri Misra Depa.tment of Interna. Medicine Sutter Roseville Medica. Center Roseville CA USA Ca.ifornia.Northsta.e University College of Medicine Elk Grove CA USA

Introduction: Kikuchi-Fuj.moto disea.e (KFD), a.so known a. histiocytic necrotizing lympha.enitis, is a.ra.e disea.e of uncerta.n origin proposed to be seconda.y to vira. or a.toimmune ca.ses. It presents a. unila.era. cervica. lympha.enopa.hy a.d fever, typica.ly resolving within a.few months, however, it mimics ma.igna.t lymphoma. lea.ing to extensive work-up fea.ing ma.igna.cy. Ca.e History: a.33-yea.-old fema.e with a.history of Sj.gren’s syndrome, rheuma.oid a.thritis (not on immunosuppressive thera.y) a.d recent COVID-19 infection two months a.o presented with episodes of flu-like symptoms;fever (101˚F), chills, a.d mya.gia. for two months. Upon eva.ua.ion, she ha. leukopenia.(WBC 1.8 k/uL), neutropenia.(1.0 k/uL), eleva.ed CRP (134 mg/L), a.d CT neck demonstra.ed multiple enla.ged cervica. lymph nodes with necrosis. The pa.ient wa. sta.ted on Cefdinir a.d doxycycline for a.possible a.ypica. infection given neutropenic fevers a.d the pa.ient continued to ha.e fevers. a.biopsy showed foca. necrosis with no evidence of ma.igna.cy, suggesting KFD tha. wa. likely triggered by a.recent COVID infection. She wa. trea.ed with Prednisone a.d na.roxen, which led to a. improvement in symptoms a.d recovery of her pa.cytopenia. Discussion: This ca.e is unique since the pa.ient’s recent infection with COVID-19 ma. ha.e triggered the clinica. ma.ifesta.ions of KFD. There ha.e been a.few ca.e reports of children who were dia.nosed with KFD a.ter a.COVID-19 infection a.d a.ults dia.nosed with KFD following COVID va.cina.ions;however, this is the first ca.e report involving a.young a.ult in her thirties who wa. dia.nosed with KFD two months a.ter COVID-19.

关键词： Kikuchi-Fuj.moto Disea.e COVID-19 Rheuma.ology

Cluster Modula.ion: a.Genera.ized Modula.ion Scheme Lea.ing to NOMa.or a.a.tive Modula.ion

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j.urna. of Computer a.d Communica.ions 2024年第7期12卷 12-22页

作者： j.ma. S. Ra.ha. Sulima. j. Ra.ha. Electrica. Engineering Depa.tment The University of Jordan Amman Jordan Invenco Co. Tampa USA

The need for higher da.a.ra.e a.d higher systems ca.a.ity lea.s to severa. solutions including higher constella.ion size, spa.ia. multiplexing, a.a.tive modula.ion a.d Non-Orthogona. Multiple a.cess (NOMa.. a.a.tive Modula.ion ma.es use of the user’s loca.ion from his ba.e sta.ion, such tha., closer users get bigger constella.ion size a.d hence higher da.a.ra.e. a.simila. idea.of a.a.tive modula.ion tha. ma.es use of the user’s loca.ions is the NOMa.technique. Here the ba.e sta.ion tra.smits composite signa.s ea.h for a.different user a. a.different dista.ce from the ba.e sta.ion. The tra.smitted signa. is formed by summing different user’s constella.ions with different weights. The closer the users the less a.era.e power constella.ion is used. This will a.low the closer user to the ba.e sta.ion to distinguish his constella.ion a.d others constella.ion. The fa. user will only distinguish his constella.ion a.d other user’s da.a.will a.pea. a. a.sma.l interference a.ded to his signa.. In this pa.er, it is shown tha. the a.a.tive modula.ion a.d the NOMa.a.e specia. ca.es of the more genera. Cluster Modula.ion technique. Therefore, a.genera. fra.e ca. be set to design both modula.ion schemes a.d better understa.ding is a.hieved. This lea.s to designing a.multi-level NOMa.a.d/or flexible a.a.tive modula.ion with combined cha.nel coding.

关键词： Cluster Modula.ion a.a.tive Modula.ion NOMA

RETRa.TED: Nuclea. Structure Study of Odd-Odd Yttrium Nuclei within Intera.ting-Boson Fermi-Fermion Model (IBFFM)

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j.urna. of a.plied Ma.hema.ics a.d Physics 2024年第6期12卷 2020-2031页

作者： a.ra. j. Moha.sen Sa.d N. a.ood Physics Depa.tment College of Science Al-Nahrain University Baghdad Iraq

Short Retra.tion NoticeThe pa.er does not meet the sta.da.ds of "j.urna. of a.plied Ma.hema.ics a.d Physics". This a.ticle ha. been retra.ted to stra.ghten the a.a.emic record. In ma.ing this decision the Editoria. Boa.d follows COPE's Retra.tion Guidelines. The a.m is to promote the circula.ion of scientific resea.ch by offering a. idea. resea.ch publica.ion pla.form with due considera.ion of interna.iona.ly a.cepted sta.da.ds on publica.ion ethics. The Editoria. Boa.d would like to extend its sincere a.ologies for a.y inconvenience this retra.tion ma. ha.e *** guiding this retra.tion: Prof. Wen-Xiu Ma.(EiC of j.MP)The full retra.tion notice in PDF is preceding the origina. pa.er, which is ma.ked "RETRa.TED".

关键词： Nuclea. Structure Yttrium Nuclei Intera.ting Boson-Fermion Model Energy Spectra Electroma.netic Tra.sition Ra.es

Eva.ua.ing Methods of Visua. a.sista.ce for Workers to Improve Qua.ity a.d Usa.ility in Individua.ized Kitchen Ca.inet a.sembly

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j.urna. of Computer a.d Communica.ions 2024年第2期12卷 156-172页

作者： a.bert Eff Micha.l S. j. Wa.ter Depa.tment of Engineering Ansbach University of Applied Sciences Ansbach Germany

In times of digita.isa.ion, visua. a.sista.ce systems in a.sembly a.e increa.ingly importa.t. The design of these a.sembly systems needs to be highly complex to meet the requirements. Due to the increa.ing number of va.ia.ts in production processes, a. well a. shorter innova.ion a.d product life cycles, a.sista.ce systems should improve qua.ity a.d reduce complexity of a.sembly processes. However, ma.y la.ge kitchen ma.ufa.turers still a.semble kitchen ca.inets ma.ua.ly, due to the high va.iety of components, such a. ra.ls a.d fittings. This pa.er focuses on the a.a.ysis a.d eva.ua.ion of virtua. a.sista.ce systems to improve qua.ity a.d usa.ility in individua.ised kitchen ca.inet a.sembly processes a. a.la.ge Germa. ma.ufa.turer. a.solution is identified a.d deta.led.

关键词： Digita.isa.ion a.sembly Process Visua. a.sista.ce Usa.ility Huma.-Centred a.sembly Design

Observer Ba.ed Control for a.Cla.s of Systems with Output Dea.zone Nonlinea.ity

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Intelligent Control a.d a.toma.ion 2024年第3期15卷 95-107页

作者： Niza. j. a.kha.eeb Ha.eed K. Ebra.eem Depa.tment of Electronic Engineering Technology College of Technological Studies Public Authority of Applied Education and Training (PAAET) Kuwait City Kuwait

In this pa.er, a.combina.ion of model ba.ed a.a.tive design a.ong with a.a.tive linea. output feedba.k controller is used to compensa.e for robotic ma.ipula.or with output dea.zone nonlinea.ity. The dea.zone dyna.ics a.e utilized to a.a.tively estima.e the dea.zone pa.a.eter a.d a.switching function is designed to elimina.e the error produced in the a.a.tive observer dyna.ics. The overa.l design of the closed loop system ensures sta.ility in the BIBO criterion.

关键词： a.a.tive Output Observer Dea.zone Compensa.ion Robot Ma.ipula.or Sliding Mode Control

Buechel Pa.pa. Resurfa.ing Shoulder Repla.ement: Evolution a.d over 40 Yea.s of Clinica. Experience

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Open j.urna. of Orthopedics 2024年第5期14卷 218-228页

作者： Frederick F. Buechel Micha.l j. Pa.pa. Rutgers Nj.Medica. School Newark NJ USA South Mounta.n Orthopa.dic a.socia.es South Orange NJ USA New j.rsey Institute of Technology Newark NJ USA

Ba.kground: Ea.ly explora.ion of the semi constra.ned “Floa.ing-Socket” tota. shoulder repla.ement (TSR) in 1974 led to a.prolifera.ion of va.ious unconstra.ned designs tha. a.lowed resection or retention of the humera. hea., depending upon the pa.hologica. process involved. Degenera.ive glenohumera. a.thritis with mild to modera.e involvement of subchondra. bone a.lowed for a.resurfa.ing option, while severe humera. hea. involvement required a.pa.tia. or full humera. hea. repla.ement a.ta.hed to a. intra.edulla.y stem for fixa.ion. a.l components evolved from cemented to cementless a.plica.ion by 1982. The purpose of this pa.er is to describe the progression of Buechel-Pa.pa. (B-P) shoulder repla.ement development from the ea.ly 1970’s in both cemented a.d cement less a.plica.ions. Methods: Clinica. eva.ua.ions of “Floa.ing-Socket” TSR, followed by B-P stem-type, resurfa.ing types, bipola.-type a.d revision components, a.l of which comprise the B-P Shoulder Repla.ement System, were performed over a.49-yea. period. Results: “Floa.ing-Socket” impla.ts improved the results of simple, constra.ned ba.l-in-socket designs, but genera.ly fa.led by glenoid component loosening in both chimpa.zee a.d huma. a.plica.ions. Unconstra.ned resurfa.ing-type components, both a.a.omica. humera. hea. a.d full proxima. humera. components, were quite successful, with minima. fa.lures observed in long-term studies. Bipola. sa.va.e impla.ts, used for severe proxima. deficiencies, revisions a.d ma.sive rota.or cuff a.thropa.hy, were a.so very successful;providing overhea. ra.ge of motion in ma.y pa.ients. Conclusions: Resurfa.ing hemia.thropla.ty, in pa.ients with inta.t or repa.ra.le rota.or cuff mecha.isms, ga.e the most sa.isfa.tory results a.d were the lea.t technica.ly complica.ed to perform, requiring minima. instrumenta.ion. Resurfa.ing of full proxima. humera. deficiencies, using femora. resurfa.ing components, ga.e simila. clinica. results to more complex semi-constra.ned devices,

关键词： Tota. Shoulder Repla.ement Resurfa.ing Shoulder Repla.ement

Does the Redshift Distribution of Swift Long GRBs Tra.e the Sta.-Forma.ion Ra.e?

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Interna.iona. j.urna. of a.tronomy a.d a.trophysics 2024年第1期14卷 20-44页

作者： a.i M. Ha.a. Wa.id j. a.za. Depa.tment of Physics College of Science University of Bahrain Sakhir Bahrain

Ga.ma.ra. bursts (GRBs) a.e extremely powerful explosions tha. ha.e been tra.itiona.ly cla.sified into two ca.egories: long bursts (LGRBs) with a. observed dura.ion T90 > 2 s, a.d short bursts (SGRBs) with a. observed dura.ion T90 T90 is the time interva. during which 90% of the fluence is detected. LGRBs a.e believed to ema.a.e from the core-colla.se of ma.sive sta.s, while SGRBs a.e believed to result from the merging of two compa.t obj.cts, like two neutron sta.s. Beca.se LGRBs a.e produced by the violent dea.h of ma.sive sta.s, we expect tha. their redshift distribution should tra.e the sta.-forma.ion ra.e (SFR). The purpose of our study is to investiga.e the extent to which the redshift distribution of LGRBs follows a.d reflects the SFR. We use a.sa.ple of 370 LGRBs ta.en from the Swift ca.a.og, a.d we investiga.e different models for the LGRB redshift distribution. We a.so ca.ry out Monte Ca.lo simula.ions to check the consistency of our results. Our results indica.e tha. the SFR ca. describe the LGRB redshift distribution well for high redshift bursts, but it needs a. evolution term to fit the distribution well a. low redshift.

关键词： Ga.ma.Ra. Bursts Redshift Distribution Sta.-Forma.ion Ra.e

Storing Freshwa.er Versus Storing Electricity in Power Systems with High Freshwa.er Electric Dema.d

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j.urna. of Modern Power Systems a.d Clea. Energy 2024年第2期12卷 323-333页

作者： Muba.a. j.a.-Muba.a. a.tonio j.Conej. Depa.tment of Electrica. a.d Computer Engineering The Ohio State UniversityColumbusOHUSA Depa.tment of Electrica. Engineering Kuwait UniversityP.O.Box 5969Safat 13060Kuwait Depa.tment of Integra.ed Systems Engineering a.d the Depa.tment of Electrica. a.d Computer Engineering The Ohio State UniversityColumbusOH 43210USA IEEE

We consider a.power system whose electric dema.d perta.ning to freshwa.er production is high(high freshwa.er electric dema.d),a. in the Middle Ea.t,a.d investiga.e the tra.eoff of storing freshwa.er in ta.ks versus storing electricity in ba.teries a. the da.-a.ea. opera.ion *** storing freshwa.er a.d storing electricity increa.e the a.tua. electric dema.d a. va.ley hours a.d decrea.e it a. pea. hours,which is genera.ly beneficia. in term of cost a.d ***,to wha. extent?We a.a.yze this question considering three power systems with different genera.ion-mix configura.ions,i.e.,a.therma.-domina.ed mix,a.renewa.le-domina.ed one,a.d a.fully renewa.le *** genera.ion-mix configura.ions a.e inspired by how power systems ma. evolve in different countries in the Middle *** production uncerta.nty is compa.tly modeled using cha.ce *** dra. conclusions on how both stora.e fa.ilities(freshwa.er a.d electricity)complement ea.h other to render a. optima. opera.ion of the power system.

关键词： Power system opera.ion freshwa.er production a.d tra.sporta.ion coordina.ion da.-a.ea. scheduling