organizing engineering research papers(45)

8/8/2019 Organizing Engineering Research Papers(45)

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Organizing Engineering

Research Papers (45)工程英文論文組織寫作

柯泰德線上英文論文編修訓練服務http://www.chineseowl.idv.tw

工程英文

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工程英文研究的基本科技論點

(第一部 :!" )

• Setting of research (研究#$ ): %研究的&'()* ?%的+,-./0研究的123 ?

• Research problem (研究4' ) : %的研究56%789:;<(=>?一@0:的4'3 ?

• Quantitative specification of problem (研究4'的AB ) :%9CDAB4'EF%的+,/GHI文J研究KLM 的ABNO

• Importance of problem (研究4'的PQ ) : CR4'ST:;<(U0: , VW研究的+,X6YZ的[\]^?



(第_部 :`a )

• Research objective (研究bc )

• Methoolog! to achieve objective(debc的fg )

• "nticipate results (hi的jR )

• #ontribution to fiel (kl的mJ )



no一 (第一部 :!" )

研究#$ "s inispensable actuators for auto$focusing ("%) an

&ooming, stepping motors are e'tensivel! aopte in igital vieo

cameras (#s)* %ollo+ing rising consumer eman for #s in the

electronic proucts maret, enhance properties an elevate

functions pla! an increasing pivotal role in luring ne+ customers*

研究4' espite their fast !namic "% access, even the most

avance #s are limite in terms of lo+ po+er consumption an

inae-uate operational efficienc! to satisf! consumer eman*

#onventional "% actuators in #s are all stepping motors,

subse-uentl! limite b! a slo+ !namic "% spee, high po+erconsumption lo+ po+er efficienc!* Moreover, noise interference from a

stepping motor in a # is easil! recore into the igital films uring

"% operation*



no一 (第一部 :!" )

研究4'的AB %or instance, the operational time for a t!pical "% linearactuator in a # is onl! ./0th that of a conventional stepper motor* "itionall!, the po+er consumption b! using a linear actuator in a # is onl!./1r of that +hen using a conventional stepping motor for "%* Moreover, theoperational efficienc! b! using a linear actuator in a # is onl! ./2 that of aconventional steeping motor* %urthermore, the acoustic noise interferencecause b! using a linear actuator for "% in a # is lo+er than that +henoperate b! a conventional stepping motor* 3herefore, linear actuators arehighl! promising alternatives to conventional stepping motors in #s*

研究4'的PQ 3heoreticall!, conventional stepping motors are limite interms of their fi'e resolution, possibl! incurring errors +hen using open$loopcontrol in "% operation* Such limitations lea to unclear ## images in a#* In practice, a conventional stepping motor is larger than a linear actuator

o+ing to the simple structure of the latter* "itionall!, the conventionalstepping motor for "% s!stem in a # leas to slo+ !namic "% spee, highpo+er loss an lo+ operational efficienc!* Moreover, noise interference from astepping motor is easil! recore into igital forms uring "% operation*



no一 (第_部 :`a )

研究bc 4ase on the above, +e shoul evelop a sliing motorcontrol (SM#) metho base on the position estimation algorithm (56")for use in "% of the linear actuator in a # to achieve lo+ po+erconsumption, high operational efficienc! an fast !namic "% accesscharacteristics*

debc的fg 3o o so, a concrete an linear actuator +ith lo+ po+erconsumption an high operational efficienc! can be manufacture for "%in a #* " magneto$resistive (MR) encoer in the linear actuator canthen be aopte for use as a position feebac sensor to ac-uire theposition of the moving part of the linear actuator in "% operation* 7e't,an interpolation chip can be embee to enhance the resolution of alinear actuator in a #, attain an enhance image an avoi an

increasing prime cost of a #* "itionall!, the 56" can be evelopefrom the MR encoer to etermine accuratel! the position of the movingpart of the linear actuator in a #*



no一 (第_部 :`a )

hi的jR "s anticipate, the propose SM# metho can offer aneffective means of positioning an controlling velocit! o+ing to its man!avantages, e*g*, insensitivit! to parameter variations, isturbancerejection an fast !namic response* 8ence, the SM# base on the 56"+ritten in a single chip can enhance control performance in orer toincrease focusing spee an accurac!* "itionall!, the propose SM#

metho can be aopte to manufacture a linear actuator +ith lo+ po+erconsumption an high operational efficienc! for "% operation in a #*3he propose 56" can also etermine accuratel! the position of a movingpart of a linear actuator in a #* Moreover, the SM# metho base onuse of the 56" in "% operation in a # can reuce "% access time b!several microsecons an avoi the recoring of acoustic noiseinterference into the igital films*

kl的mJ 3he propose metho is highl! promising for use inmanufacturing an efficient linear actuator +ith lo+ po+er consumption anhigh operational efficienc! for "% operation in # rapil!* %urthermore,the "% s!stem +ith a linear actuator has a fast !namic "% spee anlimite acoustic noise interference*



no_ (第一部 :!" )

研究#$ Inventor! refers to the stoc of an! organi&ational$relate item or

resource* "ll firms maintaining an inventor! suppl! can satisf! eman +ith

respect to prouct variation* 8o+ever, a large inventor! ma! incur long prouct

c!cle times* "itionall!, the proportion of inventor! an setup costs of a

prouction line to the total operational fun in a compan! is e'tremel! high,

highlighting the importance of eveloping a more economic inventor! orer moelto satisf! prouction re-uirements*

研究4' 3he economic prouction -uantit! (65Q) moel erives an optimal

prouction lot si&e that minimi&es overall inventor! costs for a single item*

8o+ever, a situation in +hich multiple items are scheule on a single facilit!

oes not ensure a feasible 65Q solution for each iniviual item in orer to

prevent stoc epletion uring the prouction c!cle* 3he rotation c!cle polic!assumes that e'actl! one setup is available for each prouct uring each c!cle*

"itionall!, all proucts are manufacture in the same se-uence uring each

prouction c!cle* espite its feasibilit!, the rotation c!cle approach is not optimal

in terms of minimi&ing overall prouction costs*



no_ (第一部 :!" )

研究4'的AB %or instance, for prouct m. +ith a prouction timet+ice that of m2, the rotation c!cle obtains a feasible solution* 4othproucts are manufacture once in a single c!cle, +ith the total costsignificantl! higher than the sum of t+o single optimal solutions*8o+ever, using a iagrammatic e'planation, a solution can be easil!foun that prouces m. once an prouces m2 t+ice uring each

c!cle* 3he latter metho is obviousl! better than the former is*

研究4'的PQ 3he rotation c!cle polic! is evelope to ajust 65Q+hen multiple items are scheule on a single facilit!, as +ell as toajust the prouction time of all proucts to the same fre-uenc!* oingso can lea to the establishment of a simple an accessible formula*8o+ever, +hen proucts var! too +iel! in terms of manufacturing

time, aopting the rotation c!cle polic! creates a feasible solution, butnot optimal one, leaing to a marel! higher cost as +ell*



no_ (第_部 :`a )

研究bc 4ase on the above, +e shoul evelop a process optimi&ationproceure, capable of moif!ing the prouction c!cle time base on the rotationc!cle metho* uring each c!cle, proucts ma! have more than one setup* "solution proceure can etermine the appropriate c!cle length, number ofsetups for each item, scheuling constraints an total inventor! cost function*ia this proceure, each item c!cle can be close to the prime solution erivefrom the 65Q moel*

debc的fg 3o o so, the moel frame+or can be evise in contrast+ith the rotation c!cle polic!* 3he polic! can be ajuste to ientif! ho+ eachitem is relate +ith respect to optimal c!cle time* %easibilit! of the proposemoel can then be verifie, +ith esire changes mae accoringl!* 7e't, arec!cle time formula, conitions of moel constraints an total cost formula canbe establishe*

6'amining the rule b! iteration can allo+ us to anal!&e the rationalit! anvaliit! of these moels* "itionall!, an actual e'ample can emonstrate itsfeasibilit!, along +ith a comparison mae to the solution of the primal rotationc!cle* Moreover, sensitivit! can be performe to emonstrate ho+ alternationc!cle time influences total cost*



no_ (第_部 :`a )

hi的jR "s anticipate, the propose algorithm can resolve the65Q an rotation c!cle problem of multiple items for a prouction facilit!*

"ccoring to the numerical anal!sis of a case stu!, the proposeproceure can reuce overall cost more than rotation c!cle polic! can*In oing so, the setup cost an setup time can be integrate into thepropose algorithm* "itionall!, prouction line facilities can be

upgrae b! centrali&ing the ile times simultaneousl!, thus ensuringtheir efficienc!, e*g*, routine maintenance an fle'ibilit! in prouctionscheuling*

kl的mJ Importantl!, the propose proceure can resolve problemsinvolving multiple items for a single facilit!* #onse-uentl!, prouctionmanagement can construct a feasible solution uner multiple items on a

single facilit!* "itionall!, a larger ratio for multiple prouction time forone item to another implies more benefits ac-uire for the proposealgorithm* etermining prouction -uintiles is often referre to as atrae$off problem, in +hich the formulae attempt to minimi&e cost, reuceinventor! costs, enhance prouct -ualit! an increase corporate profits*



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organizing engineering research papers(45)

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