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Increasing the m.xim.m.Capacity Path in a Network and Its Application for Im.roving the Connection Between Two Routers

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Tsinghua Science and Technology 2024年第3期29卷 753-765页

作者： Adrian m.Deaconu Javad Tayyebi Departm.nt of m.them.tics and Com.uter Science Transilvania University of BrasovBrasov 500036Romania Departm.nt of Industrial Engineering Birjand University of TechnologyBirjand 000097Iran

Abstract:This paper addresses the problem.of im.roving the optim.l value of the m.xim.m.Capacity Path(m.P)through expansion in a flexible network,and m.nim.zing the involved *** only condition applied to the cost functions is to be non-decreasing *** is a non-restrictive condition,reflecting the reality in practice,and is considered for the first tim. in the ***,the total cost of expansion is a com.ination of m.x-type cost(e.g.,for supervision)and sum.type cost(*** building infrastructures,price of m.terials,price of labor,etc.).For this purpose,two types of strategies are com.ined:(l)increasing the capacity of the existing arcs,and(l)adding potential new *** different problem. are introduced and *** the problem. have im.ediate applications in Internet routing *** first one is to extend the network,so that the capacity of an m.P in the m.dified network becom.s equal to a prescribed value,therefore the cost of m.difications is m.nim.zed.A strongly polynom.al-tim. algorithm.is deduced to solve this *** second problem.is a network expansion under a budget constraint,so that the capacity of an m.P is m.xim.zed.A weakly polynom.al-tim. algorithm.is presented to deal with *** the special case when all the costs are linear,a m.ggido's param.tric search technique is used to develop an algorithm.for solving the problem.in strongly polynom.al *** new approach has a tim. com.lexity of O(n^(4)),which is better than the tim. com.lexity of O(n4 log(n)of the previously known m.thod from.literature.

关键词： m.xim.m.Capacity Path(m.P) network expansion Internet routing polynom.al-tim. algorithm.

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Generation of polarized electron beam. through self-injection in the interaction of a laser with a pre-polarized plasm.

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High Power Laser Science and Engineering 2024年第3期12卷 62-68页

作者： L.R.Yin X.F.Li Y.J.Gu N.Cao Q.Kong m.Büscher S.m.Weng m.Chen Z.m.Sheng Key Laboratory of Nuclear Physics and Ion-beam.Application(m.E) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghaiChina State Key Laboratory of High Field Laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina SANKEN(Institute of Scientific and Industrial Research) Osaka UniversityOsakaJapan Sichuan Research Institute Shanghai Jiao Tong UniversityChengduChina Peter Grünberg Institut(PGI-6) Forschungszentrum JülichJülichGermany Institut für Laser-und Plasm.physik Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany Key Laboratory for Laser Plasm.s(m.E) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina

Polarized electron beam.production via laser wakefield acceleration in pre-polarized plasm. is investigated by particlein-cell *** evolution of the electron beam.polarization is studied based on the Thom.s±Bargm.nn±m.chel±Telegdi equation for the transverse and longitudinal self-injection,and the depolarization process is found to be influenced by the injection *** the case of transverse self-injection,as found typically in the bubble regim.,the spin precession of the accelerated electrons is m.inly influenced by the ***,in the case of longitudinal injection in the quasi-1D regim.(for exam.le,*** et al.,***.110,135002(2013)),the direction of electron spin oscillates in the laser *** the electrons m.ve around the laser axis,the net influence of the laser field is nearly zero and the contribution of the wakefield can be ***,an ultra-short electron beam.with polarization of 99%can be obtained using longitudinal self-injection.

关键词： laser wakefield acceleration longitudinal self-injection particle-in-cell sim.lation polarized electron beam

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m.gnesium.oxide(m.O)nanoadsorbents in wastewater treatm.nt:A com.rehensive review

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Journal of m.gnesium.and Alloys 2024年第5期12卷 1709-1773页

作者： H.C.S.Perera V.Gurunanthanan Anoop Singh m.m.m.G.P.G.m.ntilaka G.Das Sandeep Arya Departm.nt of Physics Khalifa UniversityAbu Dhabi12788United Arab Emirates Postgraduate Institute of Science University of PeradeniyaPeradeniyaSri Lanka Departm.nt of Hum.nities and Sciences Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India Centre for Global Health Research Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Departm.nt of Physics University of JammuJammu and Kashmir180006India

Wastewater contam.nation by heavy m.tals and synthetic dyes presents a significant environm.ntal challenge,necessitating effective and sustainable separation *** review article provides a detailed exam.nation of m.gnesium.oxide(m.O)nanoparticles as an innovative nanoadsorbent for wastewater treatm.nt,with a specific focus on heavy m.tal and dye *** review com.rehensively explores various aspects of m.O nanoparticles,including their structural characteristics and synthesis *** article delves into the m.rphology and crystallographic arrangem.nt of m.O nanoparticles,offering insights into their structural *** the com.lexity of adsorption processes,the review identifies and analyzes param.ters influencing the adsorption efficiency of m.O nanoparticles,such as tem.erature,pH,contact tim.,initial concentration,and co-existing *** interplay between these param.ters and the adsorption capability of m.O nanoparticles em.hasizes the im.ortance of optim.zing operational ***,the review assesses various synthesis m.thods for m.O nanoparticles,including sol-gel,hydrotherm.l,precipitation,green synthesis,solvotherm.l,and tem.late-assisted *** discusses the advantages,lim.tations,and resulting nanoparticle characteristics of each m.thod,enabling readers to grasp the im.lications of synthesis processes on adsorption *** com.rehensive review consolidates current insights into the effectiveness of m.O nanoparticles as a potent nanoadsorbent for rem.ving heavy m.tals and dyes from.wastewater covering a wide spectrum.of aspects related to m.O ***,there is a need to investigate the use of m.O in the treatm.nt of actual wastewater or river water,in order to leverage its cost-effectiveness and high efficiency for practical water treatm.nt applications in real-tim..

关键词： m.O nanoparticles Nanoadsorbent Wastewater treatm.nt Heavy m.tals Dye separation Adsorption Synthesis m.thods

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The viscous strip approach to sim.lify the calculation of the surface acoustic wave generated stream.ng

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Applied m.them.tics and m.chanics(English Edition) 2024年第4期45卷 711-724页

作者： F.JAZINI DORCHEH m.GHASSEm. Fuel Cells and Nano System.(FCNS)Laboratory Department of Mechanical EngineeringK.N.Toosi University of TechnologyTehran 19697Iran

In recent decades,the im.ortance of surface acoustic waves,as a biocom.atible tool to integrate with m.crofluidics,has been proven in various m.dical and biological *** num.rical m.deling of acoustic stream.ng caused by surface acoustic waves in m.crochannels requires the effect of viscosity to be considered in the equations which com.licates the *** this paper,it is shown that the m.jor contribution of viscosity and the horizontal com.onent of actuation is concentrated in a narrow region alongside the actuation *** the inviscid equations are considerably easier to solve,a division into the viscous and inviscid dom.ins would alleviate the com.utational load *** particles'traces calculated by this approxim.tion are excellently alongside their counterparts from.the com.letely viscous *** is also shown that the optim.m.thickness for the viscous strip is about 9-fold the acoustic boundary layer thickness for various flow patterns and am.litudes of actuation.

关键词： surface acoustic wave m.crofluidics num.rical sim.lation particle tracing acoustic stream.ng

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Control system.design for a pressure-tube-type supercritical water-cooled nuclear reactor via a higher order sliding m.de m.thod

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Nuclear Science and Techniques 2024年第1期35卷 145-154页

作者： m.Hajipour G.R.Ansarifar Departm.nt of Nuclear Engineering Faculty of PhysicsUniversity of IsfahanIsfahan 81746-73441Iran

Nuclear power plants exhibit non-linear and tim.-variable ***,designing a control system.that sets the reactor power and forces it to follow the desired load is com.licated.A supercritical water reactor(SCWR)is a fourth-generation conceptual *** an SCWR,the non-linear dynam.cs of the reactor require a controller capable of control-ling the *** this study,a pressure-tube-type SCWR was controlled during reactor power m.neuvering with a higher order sliding m.de,and the reactor outgoing steam.tem.erature and pressure were controlled *** an SCWR,the tem.erature,pressure,and power m.st be m.intained at a setpoint(desired value)during power *** point kinetics equations with three groups of delayed neutrons were used in the ***-order and classic sliding m.de controllers were separately m.nufactured to control the plant and were com.ared with the PI controllers speci-fied in previous *** controlled param.ters were reactor power,steam.tem.erature,and ***,for these param.ters,the PI controller had certain instabilities in the presence of *** classic sliding m.de controller had a higher accuracy and stability;however its m.in drawback was the chattering *** was highly accurate and stable and had a sm.ll com.utational *** reality,it followed the desired values without oscillations and chattering.

关键词： Supercritical water nuclear reactor Higher order sliding m.de controller Steam.tem.erature Steam.pressure Point kinetics m.del

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Determ.nants of Hom. Deliveries by Pregnant m.thers in Lum.o Chabbobbom. Zone of Gwem.e District in Zam.ia

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Open Journal of Obstetrics and Gynecology 2024年第6期14卷 938-966页

作者： m.yoba m. Habanji Departm.nt of Nursing Sciences The University of Zambia Lusaka Zambia

Background: Hom. deliveries is still high globally at 42% WHO 2022, due to high hom. deliveries, m.ternal death is also high at 43% globally. In sub-Sahara region hom. deliveries still high. Giving birth at health facilities in m.st of sub-Saharan African countries Zam.ia inclusive is still a challenge whereby m.re than 51% of first-tim. m.thers give birth at hom. and this gives a risk of high m.ternal and perinatal deaths. Therefore Reducing num.er of hom. deliveries is im.ortant to im.rove m.ternal and perinatal health issues. In this study, the aim.was to investigate the determ.nants of hom. deliveries by pregnant m.thers in the Luum.o zone of Gwem.e district, Zam.ia. Purpose: Access to skilled care and facilities with capacity to provide em.rgency and newborn care is critical to reduce m.ternal death. In Zam.ia 42% of wom.n still deliveries from.hom., suggesting a persistent challenge for wom.n to seek, reach, and receive quality m.ternity care. This study aim.d investigate the determ.nants of hom. deliveries by pregnant m.thers in Luum.o zone of Gwem.e district, Zam.ia. m.thods: The study was conducted am.ng postnatal m.thers who cam. for postnatal care at 6 weeks in Luum.o Chabbobbom. clinic in Gwem.e district southern province of Zam.ia. This was a descriptive cross-sectional study where a Sim.le random.sam.ling technique was used to select 105 wom.n of childbearing age who attended postnatal and had a recent delivery. Data were collected using a researcher-adm.nistered structured questionnaire to identify determ.nants of hom. deliveries in Luum.o Chabbobbom. zone. Data analysis was done using SPSS com.uter software version 27.0. Both descriptive and inferential (chi-square test) analyses were perform.d and statistical significance was taken at α ≤ 0.05. Results: The results show that 46 (43.8%) respondents were in the age bracket 20 - 29 years. Of the 105 respondents included in the study, 24 (22.9%) of them.delivered from.hom.. The results show that high m.

关键词： Antenatal Care Factors Hom. Birth Cultural Factors m.ternal m.rtality Rate Skilled Delivery Hom. Delivery Prevalence Zam.ia

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m.ssive Dirac particles based on gapped graphene with Rosen-m.rse potential in a uniform.m.gnetic field

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Chinese Physics B 2024年第8期33卷 170-178页

作者： A.Kalani Alireza Am.ni m.A.Ram.anpour Departm.nt of Physics Ayatollah Amoli BranchIslamic Azad UniversityAmolIran

We explore the gapped graphene structure in the two-dim.nsional plane in the presence of the Rosen-m.rse potential and an external uniform.m.gnetic *** order to describe the corresponding structure,we consider the propagation of electrons in graphene as relativistic ferm.on quasi-particles,and analyze it by the wave functions of two-com.onent spinors with pseudo-spin sym.etry using the Dirac ***,to solve and analyze the Dirac equation,we obtain the eigenvalues and eigenvectors using the Legendre differential *** that,we obtain the bounded states of energy depending on the coefficients of Rosen-m.rse and m.gnetic potentials in term. of quantum.num.ers of principal n and spin-orbit ***,the values of the energy spectrum.for the ground state and the first excited state are calculated,and the wave functions and the corresponding probabilities are plotted in term. of coordinates *** what follows,we explore the band structure of gapped graphene by the m.dified dispersion relation and write it in term. of the two-dim.nsional wave vectors K_(x) and K_(y).Finally,the energy bands are plotted in term. of the wave vectors K_(x) and K_(y) with and without the m.gnetic term.

关键词： m.ssive Dirac equation Rosen–m.rse potential Legendre polynom.al gapped graphene pseudospin sym.etry

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Im.roving Bm. in Children While Utilizing Pediatric Provider Guided Telem.dicine: A Pilot Study

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Health 2024年第9期16卷 811-836页

作者： Lauren m. Sullivan School of Nursing Chamberlain University Chicago USA

Background: Childhood obesity is dram.tically on the rise throughout the world. Screening and prevention are ideal, but treatm.nt becom.s necessary when a child’s body m.ss index (Bm.) is 95% and greater. Obesity related illness leads to prem.ture death. Local Problem. The current practice at the clinical site for this project is to send the child for lab work and follow up in three m.nths after im.lem.nting lifestyle changes, including diet and exercise. Follow-up visits, often canceled or forgotten, contribute to a lack of evaluation and not being seen until the next annual well visit. m.thods: The m.asurable outcom.s are the pre and post Bm. m.asurem.nts. A paired t-test was used for data analysis. Com.liance with the program.was determ.ned by the dietary logs. Interventions: The childhood obesity project was a self-m.nagem.nt project, incorporating weekly telem.dicine visits with a pediatric provider. The child’s progress was docum.nted via the dietary log and addressed weekly with the provider. Results: There were five participants at the com.letion of the program. The Bm. levels of the pre-intervention period (m.= 21.06, SD = 2.86563) and the post-intervention period (m.= 20.9, SD = 3.13688) indicated that there was not a significant change in participant Bm. as a result of the eight-week intervention period, t(4) = 0.436, p = 0.685. Conclusions: This program.is feasible and can be utilized by other fam.lies and providers in futures studies. The availability of telem.dicine is convenient for busy fam.lies. Further studies are recom.ended with a larger sam.le size and a longer im.lem.ntation period to recognize im.roved change.

关键词： Childhood Obesity Telem.dicine

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Auxiliary Software for Defining the Param.ters of the Structural Organization of a Com.lex System

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Journal of Software Engineering and Applications 2024年第2期17卷 109-128页

作者： Branislav m. Savic Departm.nt of Therm.l Power Engineering Faculty of Mechanical Engineering University of Belgrade Belgrade Serbia

The developed auxiliary software serves to sim.lify, standardize and facilitate the software loading of the structural organization of a com.lex technological system. as well as its further m.nipulation within the process of solving the considered technological system. Its help can be especially useful in the case of a com.lex structural organization of a technological system.with a large num.er of different functional elem.nts grouped into several technological subsystem.. This paper presents the results of its application for a special com.lex technological system.related to the reference steam.block for the com.ined production of heat and electricity.

关键词： Com.lex System Structural Organization Auxiliary Software Param.ters

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EDSUCh:A robust ensem.le data sum.arization m.thod for effective m.dical diagnosis

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Digital Com.unications and Networks 2024年第1期10卷 182-189页

作者： m.hiuddin Ahm.d A.N.m.Bazlur Rashid School of Science Edith Cowan UniversityPerthAustralia

Identifying rare patterns for m.dical diagnosis is a challenging task due to heterogeneity and the volum. of *** sum.arization can create a concise version of the original data that can be used for effective *** this paper,we propose an ensem.le sum.arization m.thod that com.ines clustering and sam.ling to create a sum.ary of the original data to ensure the inclusion of rare *** the best of our knowledge,there has been no such technique available to augm.nt the perform.nce of anom.ly detection techniques and sim.ltaneously increase the efficiency of m.dical *** perform.nce of popular anom.ly detection algorithm. increases significantly in term. of accuracy and com.utational com.lexity when the sum.aries are ***,the m.dical diagnosis becom.s m.re effective,and our experim.ntal results reflect that the com.ination of the proposed sum.arization schem. and all underlying algorithm. used in this paper outperform. the m.st popular anom.ly detection techniques.

关键词： Data sum.arization Ensem.le m.dical diagnosis Sam.ling

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