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Geometri.ally Nonli.ear Bendi.g Analysi. of Metal-Cerami. Composi.e Beams under Thermomechani.al Loadi.g

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Chi.ese Journal of Mechani.al Engi.eeri.g 2013年第4期26卷 701-713页

作者： TORABi.ADEH mohammad amin Department of i.dustri.l Desi.n Engi.eeri.g University of Applied Science and Technology

A new method i. developed to deri.e equi.i.ri.m equati.ns of Metal-Cerami. beams based on fi.st order shear deformati.n plate theory whi.h i. named fi.st order shear deformati.n beam theory2(FSDBT2). Equi.i.ri.m equati.ns obtai.ed from conventi.nal method (FSDBT1) i. compared wi.h FSDBT2 and the case of cyli.dri.al bendi.g of Metal-Cerami. composi.e plates for non-li.ear thermomechani.al deformati.ns and vari.us loadi.gs and boundary condi.i.ns. These equati.ns are solved by usi.g three di.ferent methods (analyti.al, perturbati.n techni.ue and fi.i.e element soluti.n). The through-thi.kness vari.ti.n of the volume fracti.n of the cerami. phase i. a Metal-Cerami. beam i. assumed to be gi.en by a power-law type functi.n. The non-li.ear strai.-di.placement relati.ns i. the von-Kármán sense are used to study the effect of geometri. non-li.eari.y. Also, four other representati.e averagi.g esti.ati.n methods, the li.ear rule, Mori.Tanaka, Self-Consi.tent and Wakashi.a-Tsukamoto schemes, by compari.g wi.h the power-law type functi.n are also i.vesti.ated. Temperature di.tri.uti.n through the thi.kness of the beams i. thermal loadi.gs i. obtai.ed by solvi.g the one-di.ensi.nal heat transfer equati.n. Fi.ally i. i. concluded that for Metal-Cerami. composi.es, these two theori.s result i. i.enti.al stati. responses. Also the di.placement fi.ld and equi.i.ri.m equati.ns i. the case of cyli.dri.al bendi.g of Metal-Cerami. plates are the same as those supposed i. FSDBT2.

关键词： thermomechani.al loadi.g functi.nally graded beams monli.ear analysi. analyti.al soluti.n

A novel method for the management of sulfone-ri.h waste produced i. the oxi.ati.e desulfuri.ati.n(ODS) process

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Chi.ese Journal of Chemi.al Engi.eeri.g 2020年第9期28卷 2447-2456页

作者： Sobhan Farahani.mohammad amin Sobati School of Chemi.al Engi.eeri.g Iran University of Science and Technology(IUST)Tehran 16765-163Iran

The oxi.ati.e desulfuri.ati.n(ODS) process i. one of the new desulfuri.ati.n processes for the producti.n of clean fuels. Despi.e the benefi.s of the ODS process, thi. process faces several i.portant challenges. One of the most i.portant challenges of thi. process i. the management of a waste whi.h i. ri.h of sulfone *** the present study, a new strategy whi.h i. the addi.i.n of waste to the bi.umen wi.h other soli. waste such as hi.h densi.y polyethylene(HDPE) waste has been i.vesti.ated. The experi.ental desi.n method was appli.d to i.vesti.ate the effect of addi.i.n of the sulfone and HDPE wastes to the properti.s of the bi.umen blends i.cludi.g degree of penetrati.n, softeni.g poi.t, and mass loss. i. was found that the sulfone waste can be added to the bi.umen as a softener. The results showed that several grades of bi.umen i.cludi.g 50/60, 60/70, 85/100 can be produced through the addi.i.n of sulfone waste along wi.h the HDPE waste to the base 60/70 *** general, the appli.ati.n of si.ple processes such as mi.i.g the wastes wi.h the bi.umen can reduce the cost of waste management, consi.erably.

关键词： OXi.ATi.E desulfuri.ati.n Waste management Sulfone waste Bi.umen Experi.ental desi.n Hi.h densi.y polyethylene(HDPE)waste

Numeri.al analysi. of confi.ement effect on crack propagati.n mechani.m from a flaw i. a pre-cracked rock under compressi.n

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Acta Mechani.a Si.i.a 2012年第5期28卷 1389-1397页

作者： amin Manouchehri.n mohammad Fatehi.Marji Mi.i.g and Metallurgi.al Engi.eeri.g Department Yazd University

i. many si.uati.ns rocks are subjected to bi.xi.l loadi.g and the fai.ure process i. controlled by the lateral confi.ement stresses. The i.portance of confi.ement stresses has been recogni.ed i. the li.erature by many researchers, i. parti.ular, i.s i.fluence on strength and on the angle of fracture, but sti.l there i. not a clear descri.ti.n for the i.fluence of confi.i.g stress on the crack propagati.n mechani.m of rocks. Thi. paper presents a numeri.al pro- cedure for the analysi. of crack propagati.n i. rock-li.e ma- teri.ls under compressi.e bi.xi.l loads. Several numeri.al si.ulati.ns of bi.xi.l tests on the rock speci.en have been carri.d out by a bonded parti.le model （BPM） and the i.flu- ence of confi.ement on the mechani.m of crack propagati.n from a si.gle flaw i. rock speci.ens i. studi.d. For thi. purpose, several bi.xi.l compressi.e tests on rectangular spec- i.ens under di.ferent confi.ement stresses were modeled i. （2 di.ensi.nal parti.le flow code） PFC2D. The results show that wi.g cracks i.i.i.te perpendi.ular to the flaw and trend toward the di.ecti.n of major stress, however, when the lat- eral stresses i.crease, thi. i.i.i.ti.n angle gets wi.er. Also i. i. concluded that i. addi.i.n to the materi.l type, the i.i.i.ti.n di.ecti.n of the secondary cracks depends on confi.e- ment stresses, too. Besi.es, i. i. understood that secondary cracks may be produced from both tensi.e and shear mechani.ms.

关键词： Crack propagati.n Confi.ement Bonded par-ti.le model - Rock Secondary cracks

Development of a Colori.etri. Loop-medi.ted i.othermal Ampli.i.ati.n Assay for the Vi.ual Detecti.n of Fusari.m oxysporum ***. meloni.

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Horti.ultural Plant Journal 2019年第3期5卷 129-136页

作者： mohammad amin Almasi Young Researchers and Eli.es Club North Tehran Branch Islamic Azad University

Fusari.m wi.t of melon, Fusari.m oxysporum ***. meloni. i. one of the most i.portant di.eases, causi.g tremendous losses i. melon growi.g areas i. i.an. There i. a real need for a rapi. and i.expensi.e assay to faci.i.ate accurate di.ease di.gnosi. and survei.lance for better management of Fusari.m wi.t outbreaks. One of the procedures desi.ned for detecti.n of thi. di.ease i. loop-medi.ted i.othermal ampli.i.ati.n(LAMP)assay; i.s effi.i.ncy has been contrasted wi.h polymerase chai. reacti.n(PCR). The translati.n elongati.n factor 1-alpha gene i. basi.ally used for desi.ni.g the LAMP(i.e. F3, B3, Fi., and Bi.) together wi.h PCR(F and B). Usi.g hydroxynaphthol blue(HNB) dye, LAMP was placed i. a water bath after the opti.i.ati.n was done. The results show LAMP i. an advantageous method because i. i. hi.hly sensi.i.e(100-fold), qui.e cheap,user-fri.ndly, and safe; i. addi.i.n, i. i. performed qui.kly by vi.ual detecti.n and does not requi.e DNA extracti.n(i. di.ect-LAMP). The LAMP i. beli.ved to be a si.ple and reli.ble tool for laboratory purposes because i. needs only very basi. i.struments and the results can be observed and contrasted vi.ually.

关键词： Di.ect-LAMP assay Fusari.m oxysporum f.sp. meloni. Vi.ual detecti.n

Regulari.y classi.i.ati.n and correspondi.g analysi. method requi.ements of hori.ontally curved bri.ges wi.h unequal pi.r hei.hts

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Earthquake Engi.eeri.g and Engi.eeri.g Vi.rati.n 2023年第2期22卷 549-571页

作者： mohammad Jalal Maleki.amin Shahrokh Maalek School of Ci.i. Engi.eeri.g Tehran UniversityTehran 11155-4563Iran i.ani.n Bri.ge Engi.eeri.g Associ.ti.n Tehran 36481684Iran

The sei.mi. behavi.r of hori.ontally curved bri.ges,parti.ularly wi.h unequal hei.ht pi.rs,i. more compli.ated than that of strai.ht bri.ges due to thei. geometri. *** thi. study,the sei.mi. responses of several hori.ontally curved si.gle-column-bent vi.ducts wi.h vari.us degrees of curvature and di.ferent pi.r hei.hts have been i.vesti.ated,employi.g three di.ferent analysi. approaches:namely,modal pushover analysi.,uni.orm load method,and nonli.ear ti.e hi.tory *** the i.vesti.ated bri.ge confi.urati.ns and uti.i.i.g the most common regulari.y i.di.es,the results i.di.ate that vi.ducts wi.h 45-degree and 90-degree deck subtended angles can be categori.ed as regular and moderately i.regular,respecti.ely,whi.e the bri.ges wi.h 180-degree deck subtended angle are found to be hi.hly ***,the vi.ducts whose pi.r hei.hts are asymmetri. may be consi.ered as i.regular for almost all ranges of the deck subtended *** effects of hi.her transverse and longi.udi.al modes are di.cussed and the mi.i.um analysi. requi.ements are i.enti.i.d to assess the sei.mi. response of such bri.ge confi.urati.ns for desi.n *** the Regulari.y i.di.es used here are useful tools to di.ti.gui.h between regular and i.regular bri.ges,further studi.s are needed to i.prove thei. reli.bi.i.y.

关键词： hori.ontally curved bri.ges unequal hei.ht pi.rs pushover analysi. regulari.y i.dex sei.mi. analysi. and response

Enhanced removal of ni.rate and phosphate from wastewater by Chlorella vulgari.: Multi.objecti.e opti.i.ati.n and CFD si.ulati.n

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Chi.ese Journal of Chemi.al Engi.eeri.g 2019年第3期27卷 639-648页

作者： mohammad Bagher Sabeti.mohammad amin Hejazi.Afzal Kari.i Faculty of Chemi.al and Petroleum Engi.eeri.g University of Tabriz Department of Food Bi.technology Branch for Northwest & West Region Agricultural Biotechnology Research Institute of Iran Agricultural Education and Extension Organization (AREEO) Department of Bi.technology Faculty of Advanced Technologies in Medicine Iran University of Medical Sciences

To enhance the effi.i.ncy of wastewater bi.treatment wi.h mi.roalgae, the effects of physi.al parameters need to be i.vesti.ated and opti.i.ed. i. thi. regard, the i.di.i.ual and i.teracti.e effects of temperature, p H and aerati.n rate on the performance of bi.logi.al removal of ni.rate and phosphate by Chlorella vulgari. were studi.d by response surface methodology(RSM). Furthermore, a multi.objecti.e opti.i.ati.n techni.ue was appli.d to the response equati.ns to si.ultaneously fi.d opti.al combi.ati.ns of i.put parameters capable of removi.g the hi.hest possi.le amount of ni.rate and phosphate. The opti.al calculated values were temperature of 26.3 °C, pH of 8 and aerati.n rate of 4.7 L·mi.^(-1). i.teresti.gly, under the opti.um condi.i.n, approxi.ately 85% of total ni.rate and 77% of whole phosphate were removed after 48 h and 24 h, respecti.ely, whi.h were i. excellent agreement wi.h the predi.ted values. Fi.ally, the effect of baffle on mi.i.g performance and, as a result, on bi.removal effi.i.ncy was i.vesti.ated i. Sti.red Tank Photobi.reactor(STP) by means of Computati.nal Flui. Dynami.s(CFD). Flow behavi.r i.di.ated substanti.l enhancement i. mi.i.g performance when the baffle was i.serted i.to the tank. Obtai.ed si.ulati.n results were vali.ated experi.entally. Under the opti.um condi.i.n, due to proper mi.i.g i. baffled STP, ni.rate and phosphate removal i.creased up to 93% and 86%,respecti.ely, compared to unbaffled one.

关键词： Ni.rate Phosphate Nutri.nt removal Response surface methodology Sti.red Tank Photobi.reactor Computati.nal Flui. Dynami.s

Opti.i.ati.n of a conti.uous ultrasound assi.ted oxi.ati.e desulfuri.ati.n(UAOD) process of di.sel usi.g response surface methodology(RSM) consi.eri.g operati.g cost

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Chi.ese Journal of Chemi.al Engi.eeri.g 2020年第5期28卷 1384-1396页

作者： mohammad Dana mohammad amin Sobati.Shahrokh Shahhossei.i.aminreza Ansari School of Chemi.al Engi.eeri.g Iran University of Science and Technology(IUST)TehranIran

A conti.uous-flow ultrasound-assi.ted oxi.ati.e desulfuri.ati.n(UAOD)of parti.lly hydro-treated di.sel has been i.vesti.ated usi.g hydrogen peroxi.e-formi. aci. as si.ple and easy to apply oxi.ati.n *** effects of di.ferent operati.g parameters of oxi.ati.n stage i.cludi.g resi.ence ti.e(2–24 mi.),formi. aci. to sulfur molar rati.(10–150),and oxi.ant to sulfur molar rati.(5–35)on the sulfur removal have been studi.d usi.g response surface methodology(RSM)based on Box–Behnken *** the operati.g costs of the conti.uous-flow oxi.ati.n stage i.cludi.g chemi.al and electri.al energy consumpti.n,the appropri.te values of operati.g parameters were selected as follows:resi.ence ti.e of 16 mi.,the formi. aci. to sulfur molar rati. of 54.47,and the oxi.ant to sulfur molar rati. of *** these condi.i.ns,the sulfur removal and the volume rati. of the hydrocarbon phase to the aqueous phase were 86.90%and 4.34,*** drasti. reducti.n i. the chemi.al consumpti.n i. the oxi.ati.n stage,the volume rati. of the hydrocarbon phase to the aqueous phase was i.creased up to ***,the formi. aci. to sulfur molar rati. and the oxi.ant to sulfur molar rati. were obtai.ed 23.64 and 3.58,respecti.ely,whi.h lead to sulfur removal of 84.38%wi.h consi.erable i.provements on the operati.g cost of oxi.ati.n stage i. compari.on wi.h the previ.us works.

关键词： Ultrasound-Assi.ted Oxi.ati.e Desulfuri.ati.n(UAOD) Conti.uous-flow system Sulfur removal Response Surface Methodology(RSM) Operati.g cost

Stochasti. pri.e based coordi.ated operati.n planni.g of energy storage system and conventi.nal power plant

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Journal of Modern Power Systems and Clean Energy 2019年第5期7卷 1020-1032页

作者： mohammad Reza SHEi.ANi.Gholam Reza YOUSEFi.mohammad amin LATi.Y Department of Electri.al and Computer Engi.eeri.g Isfahan University of TechnologyIsfahan 84156-83111Iran

A generati.n company(GENCO)whi.h has a conventi.nal power plant(CPP)i.tends to add an energy storage system(ESS)besi.e the CPP to i.crease i.s flexi.i.i.y and *** thi. purpose,a new model i. proposed for coordi.ated operati.n planni.g of the CPP and ESS i. energy and spi.ni.g reserve markets i. the presence of a bi.ateral *** proposed model i. based on the stochasti. pri.e based uni. commi.ment(PBUC)and pri.e based storage commi.ment(PBSC).The uncertai.ti.s of the energy and spi.ni.g reserve pri.es and deli.ery requests i. the spi.ni.g reserve market are modeled vi. scenari.s based upon hi.tori.al *** proposed model maxi.i.es the profi.abi.i.y of the ESS besi.e the CPP and encourages the GENCO to i.vest the *** technology opti.ns to use besi.e the CPP are determi.ed by economi. *** results show that uti.i.ati.n of ESSs i.proves the techni.al operati.n of CPPs,as well as GENCOs’profi.abi.i.y.

关键词： Energy storage system Conventi.nal power plant Operati.n planni.g Pri.e based uni. commi.ment

On the potenti.l of alyssum as an herbal fi.er to i.prove the fi.trati.n and rheologi.al characteri.ti.s of water-based dri.li.g muds

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Petroleum 2022年第4期8卷 509-515页

作者： mohammad amin Ebrahi.i.Ali.Sanati Department of Petroleum Engi.eeri.g Amirkabir University of TechnologyTehranIran Petroleum and Petrochemi.al Engi.eeri.g School Hakim Sabzevari UniversitySabzevarIran

Dri.li.g muds play an i.portant role i. dri.li.g and producti.n operati.ns so that the degree of success i. such operati.ns i. determi.ed by the proper desi.n of these *** opti.i.e dri.li.g operati.ns and avoi. excessi.e expendi.ure,i. i. essenti.l to prepare a dri.li.g mud that i. both cheap and *** addi.i.es are typi.ally used i. dri.li.g systems to i.prove these flui.s'capabi.i.i.s i. terms of hole cleani.g capaci.y,fi.trati.n control,vi.cosi.y,yi.ld poi.t,heat transfer,***,envi.onmental concerns,cost of producti.n,and avai.abi.i.y are always consi.ered challengi.g *** study i.troduces an eco-fri.ndly herbal fi.er i. powder and regular forms as a potenti.l alternati.e to other chemi.al *** do so,alyssum homolocarpum seed muci.age was added wi.h di.ferent concentrati.ns to the water-based dri.li.g muds,and i.s rheologi.al behavi.r,fi.trati.n control,and the i.duced formati.n damage were examined and the opti.um concentrati.n was *** results of thi. study revealed the advantages of the dri.li.g muds formulated wi.h alyssum i. terms of fi.trati.n control,rheology,formati.n damage,and greenness.

关键词： Dri.li.g flui. alyssum Herbal fi.er Rheology Fi.trati.n contro