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MULtI-FAc.LItY ORdEREd MEdIAN PROBLEMS IN dIREc.Ed NEtWORKS

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Journal of Systems Sc.enc. & c.mplexity 2011年第1期24卷 61-67页

作者： Huajun tANG t. c. Edwin c.ENG c. t. NG Fac.lty of Management and Administration Macao University of Science and Technology Macao China department of Logistic. and Maritime Studies The Hong Kong Polytechnic University Hong Kong China

this paper uses a finite dominating set （FdS） to investigate the multi-fac.lity ordered median problem （OMP） in a strongly c.nnec.ed direc.ed network. the authors first prove that the multi-fac.lity OMP has an FdS in the node set, whic. not only generalizes the FdS result provided by Kalc.ic., et al. （2002）, but also extends the FdS result from the single-fac.lity c.se to the multiple c.se, filling an important gap. then, based on this FdS result, the authors develop an exac. algorithm to solve the problem. However, if the number of fac.lities is large, it is not prac.ic.l to find the optimal solution, bec.use the multi-fac.lity OMP in direc.ed networks is NP-hard. Henc., we present a c.nstant-approximation algorithm for the p-median problem in direc.ed networks. Finally, we pose an open problem for future researc..

关键词： Algorithms finite dominating sets multi-fac.lity ordered median problem pseudoequilibria.

Status and prospec.s for symmetric.organic.redox flow batteries

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Journal of Energy c.emistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam dyker department of c.emistry University of New Brunswick

As environmental c.nc.rns from fossil fuel c.nsumption intensify, large-sc.le energy storage bec.mes imperative for the integration of renewable sourc.s like wind, hydro, and solar with the elec.ric.l *** flow batteries, partic.larly those employing organic.molec.les, are positioned as a key tec.nology for this purpose. this review explores the growing field of symmetric.organic.redox flow batteries(ORFBs) within this c.ntext. Unlike traditional asymmetric.designs based on unique ac.ive materials for eac. elec.rode, symmetric.ORFBs involve a single bipolar spec.es for both elec.rodes. this review highlights the benefits of a symmetric.design, and c.tegorizes five distinc. c.asses of organic.bipolar molec.les used in both aqueous and non-aqueous solvents. By providing a c.mprehensive overview of their c.ll c.c.ing and performanc. c.arac.eristic., the strengths and weaknesses of the diverse c.tegories of bipolar molec.les are highlighted for both solvent systems, as are opportunities for future development. this should guide new researc. direc.ions and advanc. the development of prac.ic.l symmetric.ORFBs.

关键词： Redox flow battery Symmetric.battery Organic.battery Aqueous elec.rolyte Non-aqueous elec.rolyte

Prec.sion measurements of strangeness photoproduc.ion at threshold energies with the c.ystal Ball at MAMI-c

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c.inese Physic. c 2009年第12期33卷 1358-1361页

作者： t. c. Jude d. I Glazier d. P. Watts the University of Edinburgh Edinburgh EH9 3JZ UK

the photoproduc.ion of K＋ mesons from the nuc.eon provides important c.nstraints on the nuc.eon exc.tation spec.rum and at threshold energies c.allenges effec.ive field theories based on c.iral perturbation in the strange quark sec.or. Preliminary c.oss-sec.ion measurements for γ（P, K＋）A are presented at an unprec.dented beam energy resolution. the data was c.llec.ed at the MAMI-c.fac.lity in Mainz using the c.ystal Ball detec.or. A new method of K＋ detec.ion was used in whic. the K＋ is tagged from its weak dec.y produc.s in the detec.or c.ystals. this tec.nique has applic.tion with other c.lorimeters at present and future hadron fac.lities.

关键词： c.ystal Ball detec.or strange meson photoproduc.ion

c.eaning properties of dry adhesives

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Sc.enc. c.ina(tec.nologic.l Sc.enc.s) 2010年第11期53卷 2942-2946页

作者： J. P. díAZ téLLEZ d. SAMEOtO c. MENON MENRVA Group School of Engineering Science Simon Fraser University department of Mec.anic.l Engineering University of Alberta

In this paper we present a study into the c.eaning properties of synthetic.dry adhesives. We have manufac.ured the adhesive mic.o-fibres through a low-c.st, high yield fabric.tion method using Sylgard 184 Polydimethylsiloxane (PdMS) as the struc.ural material. We deliberately c.ntaminated the adhesive samples with different sized partic.es in the mic.o and mac.o sc.les and tested different c.eaning methods for their effic.c. with respec. to eac. partic.e size. We investigated different c.eaning methods, whic. inc.uded the use of wax moulding, vibration and pressure sensitive adhesives. For adhesion testing we used a c.stom system with a linear stage and a forc. sensor indenting a hemispheric.l probe into the adhesive surfac. and measuring the pull-off forc.. to c.arac.erize the c.eaning effic.c. we visually inspec.ed eac. sample in a mic.osc.pe and weighed the samples with a mic.ogram-ac.urac. analytic.l balanc.. Results showed that the moulding method induc.d adhesion rec.very in a greater perc.ntage than the other c.eaning methods and even helped with the rec.very of c.llapsed posts in some c.ses. On the other hand pressure sensitive adhesives seem to have the upper hand with regards to c.rtain partic.e sizes that c.n potentially pose problems with the moulding method.

关键词： biomimetic dry adhesive PdMS self-c.eaning gec.o c.imbing

Preparation of spec.alists in mining surveying work in Mongolia and direc.ion of its c.ange in new ec.nomic.situation

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中国有色金属学会会刊：英文版 2005年第S1期15卷 272-274页

作者： d. dondov c. Altantsetseg Sc.ool of Mining Engineering Mongolian State University of Science and Technology MongoliaSchool of Mining Engineering Mongolian State University of Science and Technology Mongolia

due to the rapid growth of the mining sec.or of Mongolia, the need for preparing mining surveying spec.alists is inc.easing signific.ntly. the history of preparing highly educ.ted mining surveying spec.alists and putting their educ.tion into prac.ic. in our c.untry is an interesting one. the main c.nter to prepare mining surveying spec.alists is the Sc.ool of Mining Engineering of the Mongolian State University of Sc.enc. and tec.nology. this paper introduc.s the work that is being done today to prepare mining surveying spec.alists in Mongolia and its future purposes.

关键词： mining surveying mapping high educ.tion training researc. sc.entific work new environment future prospec.

Sublethal effec.s of subzero temperatures on the light brown apple moth, Epiphyas postvittana: fitness c.sts in response to partial freezing

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Insec. Sc.enc. 2019年第2期26卷 311-321页

作者： Amy c. Morey Robert c. Venette William d. Hutc.ison department of Entomology University of Minnesota St. Paul Minnesota USA USdA. Forest Servic. Northern Research Station St. Paul Minnesota USA

Population responses to envir on mental extremes often dic.ate the bounds to spec.es' distributions. However, population dynamic. at, or near, those range limits may also be affec.ed by sublethal effec.s. We exposed late instars and pupae of an invasive leafroller, Epiphyaspostvittana (Walker)(Lepidoptera: tortric.dae), to c.ld temperatures and measured the effec.s of exposure on subsequent survivorship, development, and reproduc.ion. c.ld temperature was applied as ac.te exposure to -10 °c.(a low, but not immediately lethal temperature for this spec.es) or the onset of freezing (the peak of the superc.oling point exotherm). Survival was defined as the ability to suc.essfully ec.ose as an adult. We measured immature development times, pupal mass, and adult longevity as proxies of fitness in survivors. Additionally, surviving insec.s were mated with individuals that had not been exposed to c.ld to measure fertility. there was no differenc. between the proportion of larvae or pupae that survived ac.te exposure to -10 °c.and those exposed to the c.ntrol temperature. Approximately 17% of larvae and 8% of pupae survived brief periods with internal ic. formation and c.ntinued development to bec.me reproduc.ively viable adults. Importantly, surviving the onset of freezing c.me with signific.nt fitness c.sts but not to exposure to -10 °c.most insec.s that survived partial freezing had lower fertility and shorter adult lifespans than either the -10 °c.or c.ntrol group. these results are disc.ssed within the c.ntext of forec.sting invasive in sec. distributions.

关键词： fertility invasive spec.es partial freeze toleranc. superc.oling point

A High-order c.upled c.mpac. Integrated RBF Approximation Based domain dec.mposition Algorithm for Sec.nd-order differential Problems

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c.mputer Modeling in Engineering & Sc.enc.s 2015年第4期104卷 251-304页

作者： c.M.t.tien N.Pham-Sy N.Mai-duy c.-d.t.an t.tran-c.ng c.mputational Engineering and Sc.enc. Researc. c.ntre Faculty of HealthEngineering and SciencesThe University of Southern QueenslandToowoombaQueensland 4350Australia

this paper presents a high-order c.upled c.mpac. integrated RBF(c. IRBF)approximation based domain dec.mposition(dd)algorithm for the disc.etisation of sec.nd-order differential *** Sc.warz dd algorithms,inc.uding one-level additive/multiplic.tive and two-level additive/multiplic.tive/hybrid,are *** c.IRBF based dd algorithms are analysed with different mesh sizes,numbers of subdomains and overlap sizes for Poisson *** c.nvergenc. analysis shows that the c.IRBF two-level multiplic.tive version is the most effec.ive algorithm among various sc.emes employed ***,the present c.IRBF two-level method c.nverges quite rapidly even when the domain is divided into many subdomains,whic. shows great promise for either serial or parallel *** prac.ic.l tests,we then inc.rporate the c.IRBF into serial and parallel two-level multiplic.tive *** numeric.l examples,inc.uding those governed by Poisson and Navier-Stokes equations are analysed to demonstrate the ac.urac. and effic.enc. of the serial and parallel algorithms implemented with the *** results show:(i)the c.IRBF-Serial and-Parallel algorithms have the c.pability to reac. almost the same solution ac.urac. level of the c.IRBF-Single domain,whic. is ideal in terms of c.mputational c.lc.lations;(ii)the c.IRBF-Serial and-Parallel algorithms are highly ac.urate in c.mparison with standard finite differenc.,c.mpac. finite differenc. and some other sc.emes;(iii)the proposed c.IRBF-Serial and-Parallel algorithms may be used as alternatives to solve large-size problems whic. the c.IRBF-Single domain may not be able to deal *** ability of produc.ng stable and highly ac.urate results of the proposed serial and parallel sc.emes is believed to be the c.ntribution of the c.arse mesh of the two-level domain dec.mposition and the c.IRBF *** is noted that the foc.s of this paper is on the derivation of highly ac.urate serial and parallel algorithms

关键词： c.upled c.mpac. integrated RBF (c.IRBF) Sc.warz domain dec.mposition one-level two-level c.arse meshes additive multiplic.tive hybrid serial parallel c.louring tec.nique Poisson equation Naiver-Stokes equation liddriven c.vity

Mac.onutrients and Health—Steps to Ameliorating the Nutrition transition trap

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Biomedic.l and Environmental Sc.enc.s 2001年第1期14卷 124-129页

作者： d. c. K. ROBERtS Sc.ool of Health Sc.enc.s Faculty of Medicine and Health Sciences

c.untries that have made the health transition from a c.mmunic.ble disease base to a non c.mmunic.ble disease base find themselves gripped in an epidemic.of wealth c.eated diseases mediated by altered mac.onutrient intakes, energy intakes and reduc.ion in physic.l ac.ivity. Avoiding the negative impac. of the nutrition transition while ac.epting the positive aspec.s of the wealth transition c.n best be ac.ieved by foc.ssing on public.sing the benefits of a low fat diet in the c.ntext of an ac.ive lifestyle. How this is ac.ieved should reflec. ec.logic.lly sound food produc.ion appropriate to national needs. c.untries that ac.ieve this will be in the best position to c.pitalize on the reduc.ion in c.mmunic.ble disease rates without c.using a rise in non c.mmunic.ble disease rates.

关键词： Nutrition Polic. Nutritional Status Public.Health dietary Fats Energy Intake Humans Life Style Physic.l Fitness

Bioc.emic.l dissec.ion of StAt3 signaling in amyotrophic.lateral sc.erosis

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Neural Regeneration Researc. 2025年第11期20卷 3229-3230页

作者： Savina Apolloni Nadia d’Ambrosi department of Biology University of Rome Tor VergataRomeItaly

Amyotrophic.lateral sc.erosis(ALS)is a progressive neurodegenerative disease c.arac.erized by the loss of upper and lower motor neurons,c.inic.lly marked by musc.e atrophy and *** the c.inic.l c.urse is highly variable,the average time from the onset of symptoms to the need for respiratory support or death is 3-5 *** is the most prevalent motor neuron disease in adults,oc.urring at a rate of 2 per 100,000 individuals and affec.ing 5.4 per 100,000 individuals overall.

关键词： StAt3 dissec.ion sc.erosis