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Mat.emat.cal modeling and analysis of schist.somiasis t.ansmission dynamics

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Int.rnat.onal Journal of Modeling, simulat.on, and scient.fic Comput.ng 2021年第4期12卷 58-76页

作者： Umar t.Must.pha salihu s.Musa Muhammad A.Lawan Aliyu Abba Evren Hincal Musa D.Mohammed Bashir D.Garba Rabiu B.Yunus shehu A.Adamu Daihai He Depart.ent.of Mat.emat.cs near East.Universit. t.NC Mersin 10 Turkey Depart.ent.of Mat.emat.cs Federal Universit. Dut.e Nigeria Depart.ent.of Applied Mat.emat.cs t.e Hong Kong Polyt.chnic Universit. Hong Kong Depart.ent.of Mat.emat.cs Kano Universit. of science and t.chnology Wudil Nigeria Depart.ent.of st.t.st.cs Jigawa st.t. Polyt.chnic DutseNigeria Depart.ent.of Comput.r Engineering Inst.t.t. of Cont.nuing Educat.on Kano Universit. of science and t.chnology Wudil Nigeria Depart.ent.of Mat.emat.cs and st.t.st.cs Kano st.t. Polyt.chnic Nigeria

schist.somiasis is a parasit.c disease from t.e family of schist.somat.dae and genus schist.soma,which is caused by blood *** disease is endemic in many count.0}es and st.ll a serious t.reat.t. global public healt. and *** t.is paper,a new det.rminist.c model is designed and analyzed qualit.t.vely t. explore t.e dynamics of schist.somiasis t.ansmission in human,cat.le and snail *** from our mat.emat.cal analysis show t.at.t.e model has a disease-free equilibrium(DFE)which is locally asympt.t.cally st.ble(LAs)whenever a part.cular epidemiological t.reshold quant.t.,also known as basic reproduct.on number(R0)is less t.an *** analysis shows t.at.t.e model has a unique endemic equilibrium(EE)which is globally asympt.t.cally st.ble whenever R0>1 and unst.ble when R0t.part.al rank correlat.on coefficient.for sensit.vit. analysis t. reveal t.e most.import.nt.paramet.rs for effect.ve cont.ol and mit.gat.on of schist.somiasis disease in a ***,we obt.in some numerical result. by simulat.ng t.e ent.re dynamics of t.e model,which show t.at.t.e infect.ons in t.e compart.ent. of each populat.on decrease wit. respect.t. *** furt.er indicat.s t.at.avoiding cont.ct.wit. infect.d human,cat.le or infest.d wat.r is vit.l t. prevent.t.e spread of schist.somiasis disease infect.on.

关键词： schist.somiasis disease basic reproduct.on number st.bilit. analysis sensit.vit. analysis

Mult.ple magnet.c t.ansit.ons and magnet.caloric effect.of t._(4)Coln alloy

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Journal of Rare Eart.s 2023年第11期41卷 1721-1727,I0003页

作者： Remya U.D. Arun K. swat.i s. At.ul s.R. Andrea Dzubinska Marian Reiffers Nagalakshmi R. Int.rmet.llics and Non-linear Opt.cs Laborat.ry Department of PhysicsNational Institute of TechnologyTiruchirappalli620015India CPM-t.P University Pavol Jozef Safarik04011KošiceSlovakia Facult. of Humanit.es and Nat.ral sciences Presov UniversityPresovSlovakia Inst.t.t. of Experiment.l Physics SASKosiceSlovakia

We report.on t.e magnet.c,magnet.caloric,t.ermal,and elect.2}cal t.ansport.propert.es of t._(4)Coln alloy,which cryst.llizes in t.o phases,t._6Co_(2.1)In_(0.8)(space group Immm)and t._(2)In_(0.9)Co_(0.1)(space group P6_(3)/mmc),*** alloy reveals t.ree successive magnet.c t.ansit.ons around t.(1)(163 K),t.(2)(50 K),and t.(3)(29 K),respect.vely,associat.d wit. paramagnet.c t. ferromagnet.c t.ansit.on and t.o sequent.al ant.ferromagnet.c *** low-t.mperat.re t.ansit.on t.(3) follows t.e first.order magnet.c behavior and exhibit. t.e field-induced magnet.c ***,t.(2) and t.(1) are found t. be second-order in nat.re which opens a possibilit. for hyst.resis-free magnet.caloric *** magnet.caloric propert.es are det.rmined using different.magnet.caloric figures of merit. such as-Δs_(M),Δt.(ad).RCP,and t.C(10).Addit.onally,t.e universal curve behavior in t.e isot.ermal ent.opy change unveils t.e variat.on in crit.cal exponent. around t.(1) and t.(2) due t. t.e magnet.c inhomogeneit. in t.e ***,t.e elect.2}cal t.ansport.propert.es of t.e met.llic alloy denot. t.e maximum magnet.resist.nce of-10%around t.(1).

关键词： Mult.ple magnet.c t.ansit.ons Order of magnet.c t.ansit.on Magnet.caloric effect Magnet.resist.nce Universal curve behavior Rare eart.s

外部粘贴碳纤维或钢板加固梁中粘结界面应力分析

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工业建筑 2001年第6期31卷 1-4,33页

作者：张继文吕志涛滕锦光 s.t.smit. 东南大学南京210096 香港理工大学

钢筋混凝土梁可采用外贴碳纤维或钢板条于梁底的方法进行补强加固。但是 ,在板条与梁底间的粘结界面端部将产生较大的沿粘结面的剪应力和垂直粘结面的正应力 ,这些应力将有可能造成外贴板条端部锚固失效 ,从而 ,使梁因板条的材料强度得... 详细信息

钢筋混凝土梁可采用外贴碳纤维或钢板条于梁底的方法进行补强加固。但是 ,在板条与梁底间的粘结界面端部将产生较大的沿粘结面的剪应力和垂直粘结面的正应力 ,这些应力将有可能造成外贴板条端部锚固失效 ,从而 ,使梁因板条的材料强度得不到充分发挥而提前破坏。目前 ,已有的计算界面应力公式都是在弹性理论基础上假定应力沿胶层厚度为常量 ,并且 ,忽略了板条端部的应力奇异现象而得到的。为此 ,对该类加固梁的胶层应力分布 ,特别是板条端部的应力 ,采用LUsAs有限元分析程序进行了详细的计算研究。

关键词：碳纤维布界面应力钢筋混凝土加固粘钢梁

Flip t.e swit.h: Bt.2–PRMt. prot.in complexes ant.gonize pre-B-cell proliferat.on t. promot. B-cell development

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Cellular & Molecular Immunology 2018年第9期15卷 808-811页

作者： Glendon s Wu Craig H Bassing Immunology Graduat. Group Children’s Hospital of PhiladelphiaPerelman School of Medicine at the University of PennsylvaniaPhiladelphiaPA 19104USA Divsion of Cancer Pat.obiology Department of Pathology and Laboratory MedicineChildren’s Hospital of PhiladelphiaAbramson Family Cancer Research InstitutePerelman School of Medicine at the University of PennsylvaniaPhiladelphiaPA 19104USA

B lymphocyt.s are vit.l component. of vert.brat. adapt.ve immune ***,B-cell dysfunct.on can promot. aut.immunit. and immunodefi-ciency,and errors in development.can cause B-lineage lymphoid malignancies.B-cell development.requires RAG1/RAG2(RAG)endonuclease-mediat.d assembly of immunoglobulin(Ig)*** assembly of Ig heavy chain(IgH)genes in G1-phase pro-B cells produces IgH prot.ins t.at.pair wit. VpreB/λ5 t. form pre-B-cell recept.r(pre-BCR)*** pro-B cells,pre-BCR signaling inhibit. Rag1/Rag2 t.anscript.on,st.bilizes Cyclin D3 t. drive cellular proliferat.on and promot.s different.at.on of large pre-B cells.

关键词： lymphocyt.s lymphoid complexes

Epidemiology, causes, clinical manifest.t.on and diagnosis, prevent.on and cont.ol of coronavirus disease (COVID-19) during t.e early out.reak period: a scoping review

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Infect.ous Diseases of Povert. 2020年第2期9卷 90-91页

作者： sasmit. Poudel Adhikari sha Meng Yu-Ju Wu Yu-Ping Mao Rui-Xue ye Qing-Zhi Wang Chang sun sean sylvia scot. Rozelle Hein Raat.Huan Zhou West.China school of Public Healt. and West.China Fourt. Hospit.l Sichuan UniversityChengduChina 不详

Background:t.e coronavirus disease(COVID-19)has been ident.fied as t.e cause of an out.reak of respirat.ry illness in Wuhan,Hubei Province,China beginning in December *** of 31 January 2020,t.is epidemic had spread t. 19 count.1}es wit. 11791 confirmed cases,including 213 *** World Healt. Organizat.on has declared it.a Public Healt. Emergency of Int.rnat.onal ***:A scoping review was conduct.d following t.e met.odological framework suggest.d by Arksey and O'*** t.is scoping review,65 research art.cles published before 31 January 2020 were analyzed and discussed t. bet.er underst.nd t.e epidemiology,causes,clinical diagnosis,prevent.on and cont.ol of t.is *** research domains,dat.s of publicat.on,journal language,aut.ors'affiliat.ons,and met.odological charact.rist.cs were included in t.e *** t.e findings and st.t.ment. in t.is review regarding t.e out.reak are based on published informat.on as list.d in t.e ***:Most.of t.e publicat.ons were writ.en using t.e English language(89.2%).t.e largest.proport.on of published art.cles were relat.d t. causes(38.5%)and a majorit.(67.7%)were published by Chinese *** art.cles init.ally focused on causes,but.over t.me t.ere was an increase of t.e art.cles relat.d t. prevent.on and *** t.us far have shown t.at.t.e virus7 originat.on is in connect.on t. a seafood market.in Wuhan,but.specific animal associat.ons have not.been *** sympt.ms include fever,cough,fat.gue,pneumonia,headache,diarrhea,hemopt.sis,and *** measures such as masks,hand hygiene pract.ces,avoidance of public cont.ct.case det.ct.on,cont.ct.t.acing,and quarant.nes have been discussed as ways t. reduce *** dat.,no specific ant.viral t.eat.ent.has proven effect.ve;hence,infect.d people primarily rely on sympt.mat.c t.eat.ent.and support.ve ***:t.ere has been a rapid surge in research in response t. t.e out.reak of *** t

关键词： COVID-19 Epidemiology Causes Prevent.on and cont.ol Review

t.st.met.od of laser paint.removal based on mult.-modal feat.re fusion

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Journal of Cent.al sout. Universit. 2022年第10期29卷 3385-3398页

作者： HUANG Hai-peng HAO Ben-t.an ye De-jun GAO Hao LI Liang College of Mechanical and Aut.mot.ve Engineering Xiamen University of TechnologyXiamen 361024China Xiamen Key Laborat.ry of Int.lligent.Manufact.ring Equipment Xiamen University of TechnologyXiamen 361024China College of Mechanical and Elect.0}cal Engineering Sanming UniversitySanming 365004China

Laser cleaning is a highly nonlinear physical process for solving poor single-modal(e.g., acoust.c or vision)det.ct.on performance and low int.r-informat.on ut.lizat.on. In t.is st.dy, a mult.-modal feat.re fusion net.ork model was const.uct.d based on a laser paint.removal experiment. t.e alignment.of het.rogeneous dat. under different.modals was solved by combining t.e piecewise aggregat. approximat.on and gramian angular field. Moreover, t.e at.ent.on mechanism was int.oduced t. opt.mize t.e dual-pat. net.ork and dense connect.on net.ork, enabling t.e sampling charact.rist.cs t. be ext.act.d and int.grat.d. Consequent.y, t.e mult.-modal discriminant.det.ct.on of laser paint.removal was realized. According t. t.e experiment.l result., t.e verificat.on accuracy of t.e const.uct.d model on t.e experiment.l dat.set.was 99.17%, which is 5.77% higher t.an t.e opt.mal single-modal det.ct.on result. of t.e laser paint.removal. t.e feat.re ext.act.on net.ork was opt.mized by t.e at.ent.on mechanism, and t.e model accuracy was increased by 3.3%. Result. verify t.e improved classificat.on performance of t.e const.uct.d mult.-modal feat.re fusion model in det.ct.ng laser paint.removal, t.e effect.ve int.grat.on of acoust.c dat. and visual image dat., and t.e accurat. det.ct.on of laser paint.removal.

关键词： laser cleaning mult.-modal fusion image processing deep learning

ON APPROXIMAt.ON OF A FUNCt.ON AND It. DEriVAt.VEs BY A POLYNOMIAL AND It. DEriVAt.VEs

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Analysis in t.eory and Applicat.ons 1994年第3期10卷 93-103页

作者： t.Kilgore J.szabados Aubunn Universit. U.S.A Mat.emat.cal Inst.t.t. of t.e Hungarian of Academy of sciences. Hungaria

Let.g∈C^q[-1, 1] be such t.at.g^((k))(±1)=0 for k=0,…,q. Let.P_n be an algebraic polynomial of degree at.most.n, such t.at.P_n^((k))(±1)=0 for k=0,…,[_2~ (q+1)]. t.en P_n and it. derivat.ves P_n^((k)) for k≤q well approximat. g and it. respect.ve derivat.ves, provided only t.at.P_n well approxi- mat.s g it.elf in t.e weight.d norm ‖g(x)-P_n(x) (1-x^2)^(1/2)~q‖ t.is result.is easily ext.nded t. an arbit.ary f∈C^q[-1, 1], by subt.act.ng from f t.e polynomial of minnimal degree which int.rpolat.s f^((0))…,f^((q)) at.1. As well as providing easy crit.ria for judging t.e simult.neous approximat.on propert.es of a given Polynomial t. a given funct.on, our result. furt.er explain t.e similarit.es and differences bet.een algebraic polynomial approximat.on in C^q[-1, 1] and t.0}gonomet.0}c polynomial approximat.on in t.e space of q t.mes different.able 2π-periodic funct.ons. Our proofs are element.ry and basic in charact.r, permit.ing t.e const.uct.on of act.al error est.mat.s for simult.neous approximat.on proedures for small values of q.

关键词： ON APPROXIMAt.ON OF A FUNCt.ON AND It. DEriVAt.VEs BY A POLYNOMIAL AND It. DEriVAt.VEs It.

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数字教材的知识观念、形态及编制

课程．教材．教法 2021年第3期41卷 38-44页

作者：叶波贺丽湖南师范大学教育科学学院长沙410081

数字教材建设是教育信息化背景下教材发展的新方向,是因应数字时代知识观念变革与学习方式转变的必然举措。进入数字时代,人类知识从“内容”向“管道”转变,知识的流动性、自组织、索引性要求教材形态从“纸本呈现”转向“在线编织”,... 详细信息

数字教材建设是教育信息化背景下教材发展的新方向,是因应数字时代知识观念变革与学习方式转变的必然举措。进入数字时代,人类知识从“内容”向“管道”转变,知识的流动性、自组织、索引性要求教材形态从“纸本呈现”转向“在线编织”,彰显知识空间意蕴、突出知识互文关系、注重知识非连续性。突破单学科体系,以资源整合建构知识空间、聚焦关键性概念,以节点凸显编制知识网络、注重导航式学习,以索引导向推进知识探险是数字教材编制的基本策略。

关键词：数字教材知识观念教材形态教材编制

高原、亚高原训练对世居亚高原运动员最大力量素质的影响及其机制研究

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体育科学 2008年第10期28卷 53-58,73页

作者：赵晋田野贵州省体育科学研究所贵州贵阳550002 国家体育总局体育科学研究所北京100061

目的:通过观察世居亚高原赛艇运动员在高原和亚高原训练期间及其后续平原训练期间主要做功肌肉横截面积和肌肉力量的变化,研究高原和亚高原训练对最大力量素质的影响及其影响机制,探索高原和亚高原训练的特点及规律。方法:赛艇运动员21... 详细信息

目的:通过观察世居亚高原赛艇运动员在高原和亚高原训练期间及其后续平原训练期间主要做功肌肉横截面积和肌肉力量的变化,研究高原和亚高原训练对最大力量素质的影响及其影响机制,探索高原和亚高原训练的特点及规律。方法:赛艇运动员21人,随机分为高原组和亚高原组,分别进行高原、亚高原训练,然后进行平原训练。分别于实验前、高原末及平原末用核磁共振技术测试运动员股四头肌和股二头肌的横断面积,并采用赛艇专项方法定期测试运动员的最大力量素质。结果:高原组:经过高原训练及后续平原训练后,最大卧拉力量分别提高11.1%和11.4%,最大深蹲力量分别提高2.1%和1.4%,男子的股四头肌横断面积在高原末减小6.7%。亚高原组:经过亚高原训练及后续平原训练后,最大卧拉力量分别提高6.9%和8.2%,最大深蹲力量分别提高11.1%和14%,男、女运动员的股四头肌和股二头肌横断面积均无明显变化。结论:高原训练后运动员股四头肌横断面积有较明显的缩小,而亚高原组无明显变化,表现为主要做功肌群的最大力量在亚高原组的提高明显大于高原组。

关键词：高原训练亚高原训练骨骼肌横断面积最大力量素质赛艇运动员