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Analysi. and opti.al synthesi. of si.gle loop spati.l mechani.ms

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Journal of Zheji.ng Uni.ersi.y-Sci.nce A(Appli.d Physi.s & Engi.eeri.g) 2011年第9期12卷 665-679页

作者： med Ami.e LARi.i.Lotfi.ROMdHANE Sad ZEGHLOUL Laboratoi.e de Géni. Mécani.ue LAB-MA-05 Ecole Nationale d'Ingénieurs de Sousse i.sti.ut Ppri.e-UPR 3346 CNRS-Université de Poitiers-ENSMA Département Génie Mécanique et Systémes Complexes SP2MIBP30179 86962 Futuroscope France

i. thi. work, a systemati. approach i. presented to obtai. the i.put-output equati.ns of a si.gle loop 4-bar spati.l mechani.ms. The di.lyti. method along wi.h denavi.-Hartenberg parameters can be used to obtai. these equati.ns effi.i.ntly. A geneti. algori.hm （GA） has been used to solve the problem of spati.l mechani.ms synthesi.. Two types of mechani.ms, e.g., RSCR and RSPC （R： revolute; S： spheri.al; C： cyli.dri.al; P： pri.mati.）, have i.lustrated the appli.ati.n of the GA to solve the problem of functi.n generati.n and path generati.n. i. some cases, the GA method becomes trapped i. a local mi.i.um. A combi.ed GA-fuzzy logi. （GA-FL） method i. then used to i.prove the fi.al result. The results show that GAs, combi.ed wi.h an adequate descri.ti.n of the mechani.m, are well sui.ed for spati.l mechani.m synthesi. problems and have nei.her di.fi.ulti.s i.herent to the choi.e of the i.i.i.l feasi.le guess, nor a problem of convergence, as i. i. the case for determi.i.ti. methods.

关键词： Spati.l mechani.ms Geneti. algori.hm-fuzzy logi. (GA-FL) method denevi.-Hartenberg parameters Mechani.m synthesi.

MOdELi.G ANd OPTi.i.ATi.N OF CYCLi. HOi.T SCHEdULES i. AN ELECTROPLATi.G Li.E

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Journal of Systems Sci.nce and Systems Engi.eeri.g 2016年第4期25卷 469-490页

作者： Ahmed Nai.-Si.i.moh Adnen Ei.Amraoui Uni.ersi.e de Pi.ardi. Jules Verne Laboratoire des Technologies lnnovantes 02100 ST Quentin France Uni.ersi.e d'Orleans Laboratoire PRISME 63 av. de Lattre de Tassigny 18020 Bourges France

Thi. paper deals wi.h the modeli.g, analysi. and opti.i.ati.n of a speci.i. ki.d of real i.dustri.l problems. Thi. class of problems i. known i. the li.erature as Cycli. Hoi.t Scheduli.g Problem （CHSP）. i. such class of problems, several jobs have to flow through a producti.n li.e accordi.g to an ordered bath sequence. The CHSPs appear i. the manufacturi.g faci.i.i.s to achi.ve a mass producti.n and to search a repeti.i.e sequence of moves for the hoi.t. i. thi. paper, we develop P-Temporal Petri.Net models to represent the behavi.r and vali.ate certai. quali.ati.e properti.s of the basi. producti.n li.e. Afterward, complex confi.urati.ns of the producti.n li.e are modeled and thei. properti.s such as reachabi.i.y of desi.ed functi.ni.g （cycli. operati.n）, deadlock-free, resource shari.g and management are checked and vali.ated. A mathemati.al analysi. and a si.ulati.n study of all proposed Petri.net models are carri.d out usi.g mathemati.al fundaments of Petri.nets and a Vi.ual Object Net ＋＋ tool. The second part of the paper deals wi.h the development of a mi.ed i.teger li.ear programmi.g models to opti.i.e processi.g of each li.e confi.urati.n. Opti.al manufacturi.g plans of the studi.d system wi.h cycli. processi.g sequences are defi.ed and the feasi.i.i.y of opti.al cycli. scheduli.g of each confi.urati.n i. proved.

关键词： Manufacturi.g li.es processi.g tanks cycli. scheduli.g Petri.nets mi.ed i.teger li.ear programmi.g modeli.g opti.i.ati.n

Tanzani.’s Forei.n Poli.y Towards Kenya Si.ce 2010

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Tanzania’s Foreign Policy Towards Kenya Since 2010

作者： Rashi.,Rashi. moh’d 华中师范大学

学位级别：硕士

长期以来,坦桑尼亚一是东非外交事务的前沿阵地,并在非洲东部地区地区发挥了领导性作用。自2004年以来,坦桑尼亚的外交政策逐渐由解放外交转向经济外交。坦桑尼亚对肯尼亚的外交政策对两国人民生活的各个方面都产生了影响,其中包括政治... 详细信息

长期以来,坦桑尼亚一是东非外交事务的前沿阵地,并在非洲东部地区地区发挥了领导性作用。自2004年以来,坦桑尼亚的外交政策逐渐由解放外交转向经济外交。坦桑尼亚对肯尼亚的外交政策对两国人民生活的各个方面都产生了影响,其中包括政治影响、社会影响和经济影响。坦桑尼亚的外交政策主要体现在它会向肯尼亚公司的投资、贸易和安全做出指示。坦桑尼亚的外交政策为巩固睦邻政策、促进非洲统一、加快工业化进程与经济发展指明了方向。在东非国家中,肯尼亚是坦桑尼亚的重要合作伙伴之一,因为与其他东非国家相比,肯尼亚对坦桑尼亚的贸易额和投资额要高出许多。坦桑尼亚政府制定了法律和法规来规范与肯尼亚的跨境贸易,并为肯尼亚政府和私人投资者在坦桑尼亚的投资创造了有利的环境。坦赞两国政府都致力于解决其经济问题,进一步促进两国经济的发展。坦桑尼亚对肯尼亚的外交政策将东非地区的的工业化和区域建设作为重中之重。坦桑尼亚的外交政策积极解决了肯尼亚不安全的困境,并与肯尼亚携手共同解决与肯尼亚部落、野生生物走私和矿物开采问题有关的犯罪。因此,坦桑尼亚对肯尼亚的外交政策不仅为该地区的经济发展做出了巨大贡献,也为维护东非地区国家之间的团结、和平与安全做出了巨大贡献。

关键词：外教政策双边关系经济发展

Bi.li.metri. analysi. of global research output on anti.i.robi.l resi.tance i. the envi.onment(2000-2019)

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Global Health Research and Poli.y 2020年第1期5卷 153-163页

作者： Waleed M.Swei.eh Ahmad moh’d Mansour department of Physi.logy Pharmacology/ToxicologyCollege of Medicine and Health SciencesAn-Najah National UniversityNablusPalestine Busi.ess Faculty Al-Balqa Applied UniversityAmmanJordan

Background:Anti.i.robi.l resi.tance(AMR)i. a global health threat that requi.es a“One Health”*** the One Health tri.d,the envi.onmental component i. the most dynami. and most ***,the objecti.e of the current study was to assess and analyze global research acti.i.y on AMR i. the ***:Thi. was a bi.li.metri. descri.ti.e study of publi.ati.ns on AMR i. the *** were retri.ved usi.g Sci.erse Scopus for the study peri.d from 2000 to *** search query was developed usi.g terms and phrases related to the *** retri.ved publi.ati.ns were analyzed for speci.i. bi.li.metri. i.di.ators i.cludi.g annual growth,ci.ati.n analysi.,key players,research output for each world regi.ns,research themes,and occurrences of di.ferent drug classes of *** maps i.cludi.g research collaborati.n were created usi.g VOSvi.wer *** Hi.sch(h)i.dex was used to assess sci.nti.i. ***:There were 2611 research arti.les based on the i.plemented research *** retri.ved documents had an average of 22 ci.ati.ns per document and an h-i.dex of *** annual number of publi.ati.ns showed a steep i.crease from 2011 to *** major research themes i. the fi.ld were(1)di.semi.ati.n and abundance of anti.i.ti.-resi.tant genes and(2)detecti.n of bacteri.l strai.s or anti.i.ti. resi.ues i. vari.us envi.onmental *** bulk of the retri.ved arti.les(n=899;34.4%)ori.i.ated from the European *** led wi.h 598(22.9%)*** of the top 10 acti.e i.sti.uti.ns were i. *** top 10 acti.e countri.s had relati.ely i.adequate i.ternati.nal research *** most commonly encountered anti.i.ti. drug classes i. the retri.ved arti.les were peni.i.li./cephalospori.(n=1152 occurrences).The most frequently encountered pathogen i. the retri.ved publi.ati.ns was ***(n=666).The Sci.nce of the Total Envi.onment journal was the most proli.i. journal wi.h 139(5.3%)***

关键词： Anti.i.robi.l resi.tance Envi.onment Research acti.i.y One health

Experi.ental i.vesti.ati.n of “Scale i.fluence on Plasti. Rotati.nal Capaci.y of Rei.forced Concrete Beams”

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Engi.eeri.g（科研） 2016年第4期8卷 196-203页

作者： moh’d El Khati.b department of Ci.i. Engi.eeri.g Zarqa University Zarqa Jordan

The i.portance of the geometri.al effect i. practi.al desi.n has been evaluated, showi.g that an overesti.ati.n of the actual member rotati.n i. very li.ely i. the avai.able rotati.n capaci.y i. based on the evaluati.n of the behavi.r of the reference members wi.hi. a li.i.ed si.e range. The i.crease of ducti.i.y wi.h decreasi.g member si.e has been i.terpreted i. fracture mechani.s of rei.forced concrete. i. fracture mechani.s i.’s seen that beams wi.h hi.her di.ensi.ns are bri.tle, whi.e those wi.h small di.ensi.ns are ducti.e, so i.’s i.portant here to clari.y i. the same materi.l and desi.n concepts can be appli.d for rei.forced concrete beams wi.h di.ferent scales. Three poi.t bendi.g test was executed on 20 rei.forced concrete beams varyi.g scale and slenderness rati. (where steel rati. bei.g kept constant). The experi.ental results obtai.ed varyi.g beam slenderness and beam depth wi.l be used to analyze the structural response for a practi.al constructi.n, taki.g i. consi.erati.n the si.e effect, these beams are normally desi.ned i. such a way that the di.tri.uti.n of thei. i.ternal forces over the transversal secti.n has been calculated as per elasti. beam theory, whi.e the beam di.ensi.n wi.l be desi.ned as per the ulti.ate li.i. state to obtai. a ducti.e response of the rei.forced concrete beams whi.h i. necessary to guarantee the structural safety [1].

关键词： Si.e Effect Plasti. Rotati.n Rei.forced Concrete Elasti. Beam Theory Fracture Mechani.s

desi.n Study of a Cable-based Gai. Trai.i.g Machi.e

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Journal of Bi.ni. Engi.eeri.g 2017年第2期14卷 232-244页

作者： Houssei. Lami.e med Ami.e Lari.i.Sami.Bennour Lotfi.Romdhane Sai. Zeghloul Mechani.al Laboratory of Sousse (LMS) National Engineering School of Sousse University of Sousse Sousse 4000 Tunisia department of GMSC Pprime Institute CNRS ENSMA University of Poitiers UPR 3346 France Mechani.al Engi.eeri.g department American University of Sharjah PO Box 26666 Sharjah United Arab Emirates

Thi. paper deals wi.h a desi.n approach of a gai. trai.i.g machi.e based on a quanti.ati.e gai. analysi.. The proposed trai.i.g machi.e i. composed of a body wei.ht support devi.e and a cable-dri.en parallel robot. Thi. paper i. focused on the cable-dri.en robot, whi.h controls the pose of the lower li.b through an orthosi. placed on the pati.nt＇s leg. The cable robot reproduces a normal gai. movement through the moti.n of the orthosi.. A moti.n capture system i. used to perform the quanti.ati.e analysi. of a normal gai., whi.h wi.l be used as an i.put to the i.verse dynami. model of the cable robot. By means of an opti.i.ati.n algori.hm, the opti.al desi.n parameters, whi.h mi.i.i.e the tensi.ns i. the cables, are determi.ed. Two constrai.ts are consi.ered, i.e., a non-negati.e tensi.n i. the cables at all ti.es, and a free cable/end-effector colli.i.n. Once the opti.al soluti.n i. computed, a power analysi. i. carri.d out i. order to si.e the robot actuators. The proposed approach can be easi.y extended for the desi.n study of a si.i.ar type of cable robots.

关键词： gai. rehabi.i.ati.n cable-dri.en robots body wei.ht support system desi.n opti.i.ati.n

Mai. Factors i.fluenci.g Stress for Employees:A Study of Azi.i.Bank Kabul,Afghani.tan

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Main Factors Influencing Stress for Employees:A Study of Azi...

作者： moh Shoai. Nai. Khi. 河北地质大学

学位级别：硕士

Stress has become a worldwi.e phenomenon, whi.h happens i. vari.us procedures i. every organi.ati.n. Nowadays, employees at the workplace generally work more extended ti.e than before, as the responsi.i.i.i.s i.crease the tensi.n and stress i.crease and i. requi.es to employ themselves even more energeti.ally to encounter i.creasi.g expectati.ns about workplace acti.i.i.s. Omolara (2018) descri.ed workplace stress as psychologi.al and physi.al responses that happen i. an i.di.i.ual as an outcome of exi.tence unable to cope wi.h the stresses bei.g made. Accordi.g to Swanepoel (2017), busi.ess-related to pressure and theme has expanded consi.erably i. the regi.n of word-related well-bei.g throughout the four decades. These creators were of the feeli.g that the world, parti.ularly the cosmos of work and busi.ess, has gotten gradually subject to rapi. alteri.g powers li.e prolonged competi.i.n, the wei.ht of value, development, and an expansi.n i. the movement of doi.g busi.ess. The requests on representati.es developed si.i.arly si.ni.i.antly, and thi. put pressure on workers. Asi.e from the stress that ari.es from the work si.uati.n, di.ferent fountai.s of stress could i.enti.y wi.h di.crete i.fluences, for example, relati.es wi.h others and operati.n of free ti.e. Stress can next be depi.ted as the unfavorable mental and physi.al responses that happen i. a person because of thei. powerlessness to adapt to the requests bei.g made on the person i. questi.n. Gri.fen, (2018), That i. pressure from speci.l requi.ements on an i.di.i.ual. i. i. noti.ed that stress i.n't downri.ht awful;i. i. an opportuni.y when i. offers expected addi.i.n. i. any ci.cumstance, whatever i.s tendency, i. typi.ally starts when i.di.i.uals are put i. a workplace i.congruent wi.h thei. work style and or personali.y. i. becomes di.turbed when people determi.e that they have or can practi.e li.tle command over i..

关键词： career,i.terpersonal,psychologi.al,everythi.g,moti.ati.n,eati.g,questi.nnai.e,competence,i.ems,anxi.ty,

Evi.ence for structural phase transi.i.ns and large effecti.e band gaps i. quasi.metalli. ultra-clean suspended carbon nanotubes

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Nano Research 2013年第10期6卷 736-744页

作者： Shun-Wen Chang Rohan dhall moh Amer Kentaro Sato Ri.chi.o Sai.o Stephen Croni. department of Physi.s and Astronomy University of Southern California Los Angeles CA 90089 USA department of Electri.al Engi.eeri.g University of Southern California Los Angeles CA 90089 USA department of Chemi.try University of Southern California Los Angeles CA 90089 USA department of Physi.s Tohoku University Sendai 980-8578 Japan

We report evi.ence for a structural phase transi.i.n i. i.di.i.ual suspended metalli. carbon nanotubes by exami.i.g thei. Raman spectra and electron trans- port under electrostati. gate potenti.ls. The current-gate voltage characteri.ti.s reveal anomalously large quasi.metalli. band gaps as hi.h as 240 meV, the largest reported to date. For nanotubes wi.h band gaps larger than 200 meV, we observe a pronounced M-shape profi.e i. the gate dependence of the 2d band （or G＇ band） Raman frequency. The pronounced di. （or softeni.g） of the phonon mode near zero gate voltage can be attri.uted to a structural phase transi.i.n （SPT） that occurs at the charge neutrali.y poi.t （CNP）. The 2d band Raman i.tensi.y also changes abruptly near the CNP, provi.i.g further evi.ence for a change i. the latti.e symmetry and a possi.le SPT. Pronounced non-adi.bati. effects are observed i. the gate dependence of the G band Raman mode, however, thi. behavi.r devi.tes from non-adi.bati. theory near the CNP. For nanotubes wi.h band gaps larger than 200 meV, non-adi.bati. effects should be largely suppressed, whi.h i. not observed experi.entally. Thi. data suggests that these large effecti.e band gaps are pri.ari.y caused by a SPT to an i.sulati.g state, whi.h causes the large modulati.n observed i. the conductance around the CNP. Possi.le mechani.ms for thi. SPT are di.cussed, i.cludi.g electron-electron （e.g., Mott） and electron-phonon （e.g., Pei.rls） dri.en transi.i.ns.

关键词： carbon nanotube Raman spectroscopy phase transi.i.n bandgap energy

Revi.w on 209 Congeni.al Cysts of the Floor of the Mouth

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口腔医学研究 2005年第6期21卷 682-685页

作者： moh’d Jamal Al-Shari. department ofOral and Maxi.lofaci.l Surgery School and Hospital ofStomatology Wuhan UniversityChina 430079

目的:比较1980～2005年在武汉大学口腔医院治疗的89位中国病人和在约旦医院治疗的120位病人三型口底囊肿的临床特点.方法:回顾性分析皮样囊肿、表皮样囊肿和畸胎样囊肿患者的年龄、性别、种族,以及比较两组患者的囊肿位置、大小、就诊... 详细信息

目的:比较1980～2005年在武汉大学口腔医院治疗的89位中国病人和在约旦医院治疗的120位病人三型口底囊肿的临床特点.方法:回顾性分析皮样囊肿、表皮样囊肿和畸胎样囊肿患者的年龄、性别、种族,以及比较两组患者的囊肿位置、大小、就诊时间、手术治疗方法和复发率等方面的差别.结果:209例口底囊肿中,93例(44.5%)男性,116例(55.5%)女性.皮样囊肿66例(31.6%)、表皮样囊肿115例(55%)、畸胎样囊肿28例(13.4%).皮样囊肿、表皮样囊肿多见于头3个10岁年龄组,20～29岁高发,而畸胎样囊肿高好发于10岁以前.约90%的患者无自觉症状.发病后6个月以内就诊者,第1组(43.8%)明显少于第2组(80%).这些先天性囊肿常发生在口底中部.就诊时第1组中囊肿直径大于3 cm 者达48.3%,而第2组中囊肿直径大于3 cm 者仅11.7%.第1组中经口外进路切除病变占58.4%,而第2组为41.7%.141例随访病例的术后复发25例,复发率是17.7%.结论:两组口底囊肿有类似的临床特点,其中表皮样囊肿较常见,畸胎样囊肿的发病年龄较小.手术切除不彻底可导致病变复发.

关键词：皮样囊肿表皮样囊肿畸胎样囊肿