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1
Pagliuso, Alessandro. "Molecular mechanism of BARS-dependent fission process." Thesis, Open University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594182.
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Membrane fission is the cellular process by which organelles divide or release vesicles, and it is integral to cell functions such as membrane trafficking, organelle partitioning during mitosis, and mitochondrial dynamics. Membrane fission appears to rely on multiple mechanisms. Many fission events (typically, clathrin-dependent endocytosis) are driven by the large GTPase dynamin; others, instead, require C-terminal-binding-protein l -short form/brefeldin A (BFA) ADP-ribosylated substrate (CtBP1 -S/BARS; henceforth referred as BARS). Indeed, BARS can dramatically enhance the fission of Golgi-derived membranous tubules in vitro and also regulate several trafficking steps in vivo. These include the fission of basolaterally directed post-Golgi carriers and COPI vesicles, growth-factor-stimulated macropinocytosis, and fission of the Golgi ribbon during mitosis. The fission-inducing property of BARS was proposed to be dependent on an intrinsic lysophosphatidic acid acyltransferase (LP AA 1) activity responsible for phosphatidic acid production. Along with the closely metabolically interrelated lipids lysophosphatidic acid and diacylglycerol, phosphatidic acid has been suggested to mediate the rapid lipid geometry changes that might induce fission. Later work, however, showed that this activity is not intrinsic to BARS, but is due to an unknown associated protein involved in phosphatidic acid metabolism. Following from these combined considerations, the aim of the present study was to determine whether the fission-inducing property of BARS involves an interaction with a phosphatidic-acidproducing enzyme. BARS is shown to associate with two Golgi-localised LPAAT enzymes, LPAAT3 and LPAAT4. These LPAATs are involved in membrane trafficking, and treatments that block their catalytic activity result in impairment of membrane trafficking.
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Zheng, Xiao-Qin Materials Science & Engineering Faculty of Science UNSW. "Packing of particles during softening and melting process." Awarded by:University of New South Wales. School of Materials Science & Engineering, 2007. http://handle.unsw.edu.au/1959.4/31517.
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Softening deformation of iron ore in the form of sinter, pellet, and lump ore in the cohesive zone of an ironmaking blast furnace is an important phenomenon that has a significant effect on gas permeability and consequently blast furnace production efficiency. The macroscopic softening deformation behavior of the bed and the microscopic deformation behavior of the individual particles in the packed bed are investigated in this study using wax balls to simulate the fused layer behavior of the cohesive zone. The effects of softening temperature, load pressure, and bed composition (mono - single melting particles, including pure or blend particles vs binary ??? two different melting point particles) on softening deformation are examined. The principal findings of this study are: 1. At low softening temperatures, an increase in load pressure increases the deformation rate almost linearly. 2. At higher softening temperatures, an increase in load pressure dramatically increases the deformation rate, and after a certain time there is no more significant change in deformation rate. 3. The bed deformation rate of a mono bed is much greater than that of a binary one. 4. In a binary system, the softening deformation rate increases almost proportionally with the increase in the amount of lower melting point wax balls. 5. In a mono system with blend particles, the content of the lower melting point material has a more significant effect on overall bed deformation than the higher melting point one. 6. The macro softening deformation of the bed behaves the theory of creep deformation. 7. A mathematical model for predicting bed porosity change due to softening deformation based on creep deformation theory has been developed. 8. Increase in load pressure also reduces the peak contact face number of the distribution curves, and this is more prominent with higher porosity values. 9. The contribution of contact face number to bed porosity reduction is more pronounced in a mono system than in a binary system. 10. The porosity reduction in a binary bed is more due to the contact face area increase, presumably of the lower melting point particles. 11. The mono system has a single peak contact face number distribution pattern while the binary system exhibits a bimodal distribution pattern once the higher melting point material starts to deform. 12. In a binary system, an increase in deformation condition severity tends to reduce the contact face number of the higher melting point material without having to increase the contact face number of the lower melting point material accordingly to achieve a given porosity.
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Porter, Richard Thomas James. "Kinetic mechanism reduction for chemical process hazard application." Thesis, University of Leeds, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441227.
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Mesnage, Alice. "Diazonium salts induced anchoring process : mechanism, application(s)." Palaiseau, Ecole polytechnique, 2011. https://pastel.hal.science/docs/00/62/90/41/PDF/Manuscrit_Alice_Mesnage.pdf).
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In this work, three surface functionalization processes have been studied: the spontaneous grafting from diazonium salts, the chemically induced grafting from diazonium salts and the chemically induced grafting from diazonium salts in presence of vinylic monomers (which is Graftfast). These processes work at room temperature, atmospheric pressure, in aqueous medium and without any external energy source ("green" chemistry). They lead to the formation of organic films (in particular polymer films in the case of the Graftfast process), stable, strongly grafted and with a controlled thickness (chemically activated processes). Contrary to diazonium salt electrografting methods, the reaction can occur on any type of substrate from insulators to conductors including nanomaterials. The so modified surface can show new properties (for instance water-repellency or protection against corrosion) which is of a major interest in some industrial fields. The main objective of this work was to understand the grafting mechanism of those processes, especially of the Graftfast process, by studying the chemical composition of the films, their structure as well as the composition of the reactive solution. As for classical radical chain polymerization, the mechanism can be split in three steps: initiation, propagation, termination. The polymerization is initiated by aryl radicals in solution coming from the chemical reduction of the diazonium salts (outer sphere or inner sphere mechanism according to the reducing agent used). In parallel, aryl radicals can graft to the surface of the substrate and form an essential polyphenylene primer layer. The propagation stops when the growing polymer chains react on the aromatic rings already grafted on the substrate (termination step). It results an aryl groups/polymers mixed structure of the films. The Graftfast process has been notably tested with a view to improve the dispersion of nano objects in water in the framework of a preliminary study on sunscreens containing TiO2 nanoparticles<br>Au cours de ce travail, trois procédés de fonctionnalisation de surface à partir de sels de diazonium ont été étudiés, à savoir : un procédé spontané, un procédé activé chimiquement et le procédé appelé Graftfast (activation chimique en présence de monomères vinyliques). Ces procédés, dits de chimie verte, fonctionnent à température ambiante, pression atmosphérique, en milieu aqueux et sans apport extérieur d'énergie. Ils conduisent à la formation de films organiques (notamment de polymères dans le cas du procédé Graftfast) stables, greffés de manière covalente et d'épaisseur contrôlée (procédés activés chimiquement). Contrairement aux méthodes d'électrogreffage de sels de diazonium, ces procédés peuvent s'appliquer à tout type de substrats allant des isolants aux conducteurs en passant par les nanomatériaux. Le substrat ainsi modifié peut présenter de nouvelles propriétés (par exemple d'hydrophilie, de protection contre la corrosion,. . . ) ce qui est d'un intérêt majeur dans certaines problématiques industrielles. L'objectif majeur de ce travail a été de comprendre les mécanismes réactionnels de ces trois procédés et plus particulièrement du procédé Graftfast en étudiant la composition chimique des films, leur structure mais aussi la composition des solutions réactionnelles. Comme pour une polymérisation radicalaire en chaîne conventionnelle, le mécanisme réactionnel du procédé Graftfast (cas le plus complexe) procède en trois étapes : amorçage, propagation, terminaison. La polymérisation est amorcée par les radicaux aryles en solution, issus de la réduction chimique des sels d'aryldiazonium (mécanisme en sphère interne ou en sphère externe selon le réducteur chimique). Parallèlement, les radicaux aryles peuvent se greffer à la surface du substrat et former une sous couche d'accroche de polyphenylene jouant un rôle essentiel dans la construction des films. La propagation s'achève lorsque les chaînes polymères en croissance réagissent par des réactions de transfert sur les noyaux aromatiques déjà greffés sur le substrat (étape de terminaison). Les films obtenus sont alors de structure mixte : groupements aryles, polymères. Ce procédé a notamment été testé dans le but d'améliorer la dispersion des nano-objets dans l'eau, dans le cadre d'une étude préliminaire sur les crèmes solaires à base de nanoparticules de dioxyde de titane
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Hannula, J. (Juho). "Mixing mechanism studies in a pilot scale flotation cell." Master's thesis, University of Oulu, 2016. http://urn.fi/URN:NBN:fi:oulu-201609072692.
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This thesis was done as an assignment and supervision of Outotec (Finland) Oy. The experimental part was carried out in the facilities of Oulu Mining School, University of Oulu. In this work two mixing mechanism setups, A and B, are compared in a pilot scale flotation cell, TankCell® 1. The aim of the thesis is to compare the gas dispersion ability of the two mixing mechanisms. The secondary goal is to define optimal operation ranges for these mixing mechanisms. The comparison is based mainly on gas dispersion parameters: gas hold-up, superficial gas velocity, bubble size and bubble surface area flux. Furthermore, power consumption and sanding of the mixing mechanisms is measured. The experiments are conducted both in two-phase system (water and air) and in three-phase system (solid, water and air). A wide range of hydrodynamic conditions were studied to cover the conditions used in actual mineral processing plants. The conditions were varied using rotor tip speeds from 4 to 7 m/s, and overall superficial gas velocities from 0.5 to 2.5 cm/s. The results of this study indicate that significant differences exist between the gas dispersion properties of the two mixing mechanisms. Mixing mechanism setup A performed substantially better at operating conditions with high air flow rates. Mixing mechanism setup B struggled to maintain good air dispersion at high air flow rates, but gave promising results at low air flow rates. The results of this study can be used as a background for future research. Furthermore, suggestions for future pilot scale testing procedures are reported<br>Tämä diplomityö on tehty Outotec (Finland) Oy:n toimeksiannosta ja valvonnassa. Työn kokeellinen osa on toteutettu Oulun yliopiston kaivannaisalan tiedekunnan tiloissa. Diplomityössä vertaillaan kahta sekoitusmekanismia, A ja B, pilottivaahdotuskenno TankCell®-1:ssä. Diplomityön tarkoituksena on vertailla näiden sekoitusmekanismien kykyä dispergoida ilmaa. Toissijaisena tavoitteena on määritellä sekoitusmekanismien optimaaliset toimintaolosuhteet. Sekoitusmekanismien vertailu perustuu kaasun dispersioparametreihin: kaasun tilavuusprosenttiin, ilmavuohon, kuplakokoon sekä kuplien pinta-alavuohon. Lisäksi mitataan sekoitusmekanismien tehonottoa ja hiekoittumista. Testit on suoritettu sekä kaksifaasisysteemissä (vesi ja ilma) että kolmifaasisysteemissä (kiintoaine, vesi ja ilma). Testeissä sekoitusmekanismeja tutkittiin laajasti eri toimintaolosuhteissa, joita rikastamoilla tyypillisesti käytetään. Toimintaolosuhteita muutettiin käyttämällä roottorin kehänopeuksia 4–7 m/s sekä teoreettista ilmavuota 0,5–2,5 cm/s. Diplomityön tulokset osoittavat, että sekoitusmekanismien välillä on suuria eroja niiden kyvyssä dispergoida ilmaa. Sekoitusmekanismi A:n tulokset olivat selkeästi mekanismi B:tä parempia käytettäessä suuria ilmamääriä. Sekoitusmekanismi B ei pystynyt käsittelemään yhtä suuria ilmamääriä, mutta antoi lupaavia tuloksia pienemmillä ilmamäärillä. Saatuja tuloksia voidaan käyttää jatkotutkimuksen pohjana. Pilottikokoisten vaahdotuskokeiden tekijät voivat hyötyä tässä työssä tehdyistä huomioista
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Beaumont, Michael. "Towards a low temperature, liquid phase methyl methacrylate process through mechanism-guided process design." Thesis, University of Liverpool, 2015. http://livrepository.liverpool.ac.uk/2037982/.
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Moghaddas, Mohamad Amin. "On the Mechanism of the Ultrasonic-Assisted Drilling Process." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534723108853497.
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Lee, Mei-yin. "The mechanism of gibbsite crystal growth in Bayer liquor." Thesis, Curtin University, 1998. http://hdl.handle.net/20.500.11937/759.
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Although the precipitation of aluminium trihydroxide as gibbsite, via the Bayer process has been widely studied, the mechanism of crystal growth is poorly understood. This work focus on the morphology of gibbsite and the relative growth rates of individual crystal faces.Initial work was carried out to characterize aluminium trihydroxide and it was found that bayerite, another polymorph, precipitated at temperatures below 50 [degrees] C and its morphology depended on the method of precipitation. Gibbsite however, precipitated above this temperature and its morphology depended on the type of alkali aluminate solutions used. The method of precipitation does not affect the morphology, only the size of the precipitate formed. The morphology of gibbsite can be altered by the addition of organic compounds which are known to inhibit gibbsite precipitation. Some of these compounds were found to selectively inhibit the growth of individual crystal faces, thus altering the overall morphology of gibbsite. Boehmite, a polymorph of aluminium hydroxide, can be produced by partial dehydration of gibbsite at 300T. The morphology of boehmite consisted of diamond shaped crystals.The influence of cation incorporation on the morphology of gibbsite was studied experimentally and computationally (molecular modelling). These studies showed that there is a linear relationship between the amount of cation incorporated and atomic radii and between the amount of cation incorporated and the defect energy calculated. The equilibrium morphology of gibbsite predicted in the absence of media matched the morphology of gibbsite grown slowly from sodium aluminate, implying that the amount of sodium incorporation is low in these crystals.The growth rates of individual crystal faces were measured in situ, and found to be a function of supersaturation squared for the prismatic faces, possibly indicating that E growth occurs by spiral growth mechanism. The growth of the basal face was found to follow the spiral growth mechanism below a relative supersaturation of 0.815 and the birth and spread mechanism above this level. The activation energies and kinetic coefficients for the individual prismatic faces were also determined.Growth rate dispersion was observed in these microscopic studies, but the question of size dependency remains unanswered.The overall growth rates of gibbsite crystal, determined using rapid dynamic light scattering, was found to be an exponential function of supersaturation indicative of a birth and spread growth mechanism.
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Karampour, Katayoun. "Municipal funding mechanism and development process : a case study of Tehran." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10057579/.
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In the late 1980s, Tehran municipality became financially independent from central government. As a result, the municipality utilised innovative tools to finance the city, such as granting excess construction density to developers, which enabled them to construct taller buildings in exchange for a fee. This financing tool has generated a significant amount of money for the municipality and boosted the housing construction sector but it was the first step towards relaxing planning regulations and giving power to developers to pursue their agendas. The aim of this research is to investigate the impacts of municipal fiscal decentralisation on the development process and planning system of Tehran. The general orientation of this research is qualitative strategy. Primary data was collected by conducting 47 semi-structured interviews with housing developers and planners within both the public and private sectors in Tehran. In order to understand the interest and strategies of housing developers, interviews were conducted with developers working as individual developers or as construction companies. To collect data on various aspects of planning and financing the city, interviews were carried out with key informants who are, or used to be, members or officers of relevant departments in the government or other institutions. By careful analysis of the collected data on the behind the scenes of development and planning process in Tehran, this study argues that the financial dependence of Tehran Municipality on incomes generated from construction density charges, payable by housing construction developers, has resulted in the occurrence of a certain type of market-led growth in specific areas of the city. Although attempts have been made to harness this market-led growth by introducing a new plan for the city this has led to massive alterations and interventions intended to secure the benefit of developers and the municipality's income. Without providing an alternative source of income for the Tehran Municipality it is unlikely to have much success in planning for Tehran.
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Lee, Mei-yin. "The mechanism of gibbsite crystal growth in Bayer liquor." Curtin University of Technology, School of Applied Chemistry, 1998. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=10719.
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Although the precipitation of aluminium trihydroxide as gibbsite, via the Bayer process has been widely studied, the mechanism of crystal growth is poorly understood. This work focus on the morphology of gibbsite and the relative growth rates of individual crystal faces.Initial work was carried out to characterize aluminium trihydroxide and it was found that bayerite, another polymorph, precipitated at temperatures below 50 [degrees] C and its morphology depended on the method of precipitation. Gibbsite however, precipitated above this temperature and its morphology depended on the type of alkali aluminate solutions used. The method of precipitation does not affect the morphology, only the size of the precipitate formed. The morphology of gibbsite can be altered by the addition of organic compounds which are known to inhibit gibbsite precipitation. Some of these compounds were found to selectively inhibit the growth of individual crystal faces, thus altering the overall morphology of gibbsite. Boehmite, a polymorph of aluminium hydroxide, can be produced by partial dehydration of gibbsite at 300T. The morphology of boehmite consisted of diamond shaped crystals.The influence of cation incorporation on the morphology of gibbsite was studied experimentally and computationally (molecular modelling). These studies showed that there is a linear relationship between the amount of cation incorporated and atomic radii and between the amount of cation incorporated and the defect energy calculated. The equilibrium morphology of gibbsite predicted in the absence of media matched the morphology of gibbsite grown slowly from sodium aluminate, implying that the amount of sodium incorporation is low in these crystals.The growth rates of individual crystal faces were measured in situ, and found to be a function of supersaturation squared for the prismatic faces, possibly indicating ++<br>that E growth occurs by spiral growth mechanism. The growth of the basal face was found to follow the spiral growth mechanism below a relative supersaturation of 0.815 and the birth and spread mechanism above this level. The activation energies and kinetic coefficients for the individual prismatic faces were also determined.Growth rate dispersion was observed in these microscopic studies, but the question of size dependency remains unanswered.The overall growth rates of gibbsite crystal, determined using rapid dynamic light scattering, was found to be an exponential function of supersaturation indicative of a birth and spread growth mechanism.
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Malaviya, Anoop Kumar. "Decision mechanism, knowledge representation, and software architecture for an intelligent control system /." Connect to this title, 1997. http://theses.library.uwa.edu.au/adt-WU2006.0127.
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Zhao, Mingrui, Angelin McCormack, and Manish Keswani. "The formation mechanism of gradient porous Si in a contactless electrochemical process." ROYAL SOC CHEMISTRY, 2016. http://hdl.handle.net/10150/615615.
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Recently, gradient porous silicon has been developed to meet the requirements of various applications
due to its unique physical and chemical properties. In this paper, the formation mechanism and
morphology of radially symmetric gradient porous silicon films fabricated using a contactless method
and their dependence on different process parameters, such as HF concentration, solution pH, current
density and wafer resistivity, have been investigated in detail. The design and geometry of the sample
assembly allow decreasing current density radially inward on the silicon surface in contact with HF
based etchant solution. In the presence of surfactants, an increase in the distribution range of porosity,
pore diameter and depth was observed by increasing HF concentration or lowering pH of the etchant
solution, as the formation of pores was considered to be limited by the etch rates of silicon dioxide.
Gradient porous silicon was also found to be successfully formulated both at high (10 mA cm2
) and
low (3 mA cm2
) current densities. Interestingly, the morphological gradient was not developed when
dimethyl sulfoxide (instead of surfactants) was used in the etchant solution potentially due to limitations
in the availability of oxidizing species at the silicon–etchant solution interface.
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Kang, Daein. "Development of an arc voltage control mechanism for underwater wet smaw process." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1298565838.
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Al-Garni, Dafer Ali. "Digital mapping inference mechanism : a process of knowledge extraction and hypotheses evaluation /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487779439848009.
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Gualtero, Ivan A. "Deterioration process and deck failure mechanism of Florida's precast deck panel bridges." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000466.
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Gualtero, Ivan A. "Deterioration Process and Deck Failure Mechanism of Florida’s Precast Deck Panel Bridges." Scholar Commons, 2004. https://scholarcommons.usf.edu/etd/1058.
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During the late 70's and early 80's, several precast deck panel bridges were constructed in Florida. These utilize prestressed precast panels as stay-in-place forms and are designed to act compositely with a cast-in-place deck which is poured subsequently. Such bridges offer advantages of quicker construction and lower costs. However, several such bridges built in Florida developed extensive cracking and spalling. Following localized failures, the Florida Department of Transportation has decided to replace all 127 precast panel deck bridges in Districts 1 and 7. Since deck replacement is contingent on funding, it is necessary to develop a rational procedure to decide the order in which they are replaced. This requires a better understanding of the deterioration process and failure mechanism in such bridge decks. The methodology used in this study was to first analyze in detail 5 cases of sudden localized deck failures to identify the causes of the failures and any common factors in the failed bridges. Also, forensic studies were conducted on eight bridges scheduled for deck replacements during 2003 and 2004. In these studies it was possible to investigate in detail the condition of the deck at different stages of deterioration. Based on the information collected, a deck failure model was developed.
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Saeed, Muhammad Saqib. "A Mechanism for Representing N-Dimensional Software Process Models in One-Dimensional Documents." Thesis, Blekinge Tekniska Högskola, Avdelningen för programvarusystem, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3238.
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Current software process modeling tools lack the capabilities of generating word processing documents that can represent model semantics in a computer process-able and human understandable way. This results into inefficient use of word processors for editing and reviewing a model’s textual data. In an attempt to resolve this problem, this thesis presents an approach for representing software process models in word processing documents. The development of the approach is based on a set of issues that can hinder the generation of human understandable and computer process-able documents from software process models. The approach is validated through its implementation for a software process modeling tool. The implementation allows for the generation of word processing documents from software process models and their re-import into the process modeling tool.<br>Email: msaqibsaeed@hotmail.com
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Jain, Vikesh. "A PLATFORM INDEPENDENT PROCESS DATA-EXCHANGE MECHANISM BETWEEN JAVA APPLICATIONS AND CAM SYSTEMS." Ohio University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1081784819.
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Dong, Xuecheng. "Mechanism of Passivation and Inhibition of Trivalent Chromium Process Coating on Aluminum Alloys." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1335904469.
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Kisner, Wendell H. "Life as idea : the irreducibility of living process to mechanism in Hegel's Logic /." Available online to subscribers via ProQuest, 1996. http://proquest.umi.com/pqdweb?index=0&sid=1&srchmode=1&vinst=PROD&fmt=13&startpage=-1&clientid=31663&vname=PQD&did=739490671&scaling=FULL&ts=1161368541&vtype=PQD&rqt=309&TS=1161368551&clientId=31663.
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Kisner, Wendell H. "Life as idea the irreducibility of living process to mechanism in Hegel's Logic /." Available online to subscribers via ProQuest, 2005. http://proquest.umi.com/pqdweb?index=0&did=739490671&SrchMode=1&sid=1&Fmt=13&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1161961843&clientId=31663.
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Bartlett, Elizabeth Kay. "Evaluating the design process of a four-bar-slider mechanism using uncertainty techniques." Master's thesis, Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-04092002-180523.
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Tremble, Kathryn. "The requirement, role and mechanism of Sox2 in the process of induced pluripotency." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/277703.
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Edwards, Charles Kumar. "A Framework for the Governance of Information Security." NSUWorks, 2013. http://nsuworks.nova.edu/gscis_etd/143.
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Information security is a complex issue, which is very critical for success of modern businesses. It can be implemented with the help of well-tested global standards and best practices. However, it has been studied that the human aspects of information security compliance pose significant challenge to its practitioners. There has been significant interest in the recent past on how human compliance to information security policy can be achieved in an organization. Various models have been proposed by these researchers. However, there are very few models that have tried to link human commitment attributes with information security governance of an organization. The research problem of this study was to identify the security controls and mechanisms to govern information security effectively. The proposed model was based on agency theory and comprises a relationship between human commitment variables (ethics, integrity and trust) with security governance variables (structural, relational and process) referred as systemic variables in the research. The resulting correlation is further related with governance objectives (goal congruence and reducing information asymmetry) to hypothesize an effective information security in an organization. The research model proposed was tested employing confirmatory factor analysis (CFA) and structural equation modeling (SEM).
There were four models tested in this research. The first model (initial measurement model) comprised human variables linked with relational and the systemic variables linked with goal congruence and information asymmetry. This model could not get through the CFA tests. A modified model comprising human and systemic attributes related with goal congruence and information asymmetry, separately, was taken forward to SEM. This model returned low model fitment scores and hence two alternate models were tested. In the first alternative, the human attributes were related with goal congruence and systemic attributes were linked with information asymmetry. In the second alternative, the relationships of the first alternatives were retained and two alternate relationships were introduced - integrity was linked with information asymmetry and structural was linked with goal congruence. Both models are very close to good model fitment scores. However, the second alternative returned better results and hence, was chosen as the final outcome of the research. The model reflects that human attributes and systemic attributes are fairly independent in an effective information security framework, and drive goal congruence and information asymmetry, respectively. However, integrity is an important human commitment for ensuring information asymmetry and the right organizational structure and roles are important for ensuring goal congruence.
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Zhang, Xi. "Physical and statistical analysis of functional process variables for process control in semiconductor manufacturing." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0003176.
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Saha, Deepak. "De-lubrication during sintering of P/M compacts: Operative mechanism and process control strategy." Digital WPI, 2004. https://digitalcommons.wpi.edu/etd-theses/1049.
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"De-lubrication is the first stage in a sintering operation, where the lubricants (higher weight hydrocarbons) are removed from the parts by controlled heating. Improper de-lubrication leads to defects such as blistering, sooting, micro-porosity etc in a sintered part. Most of these problems arise, as there exists a gap in the present understanding of de-lubrication. The primary motive of this work is to direct research towards the development of sensors and controls and thus, mitigate the various problems due to improper de-lubrication. Currently, there exists a myriad of lubricants being used during the process of compaction. They include metallic based lubricants, polymers and non-metallic lubricants. In this work, research was limited in understanding the de-lubrication of EBS (Ethylene Bisstearimide), as, it the most commonly used lubricant in the industry. It has replaced commonly used lubricant due to cleaner burnouts, absence of metallic residue and, cost effectiveness. The entire work is divided into three phases: • Phase 1: Ascertained the most important parameters that affect the kinetics of de-lubrication. • Phase 2: Investigated the type of gases released during the decomposition of EBS. • Phase 3: Recommended a control strategy. TGA (Thermo-gravimetric analysis) was used in the phase I, the results clearly show that the rate of heating is the most important parameter during de-lubrication. Identification of gases was performed using the FTIR (Fourier transform infrared spectroscopy) and DUV (Deep ultraviolet spectroscopy). This constituted the second phase of our experiments. The primary gases identified in Phase II were carbon dioxide and a hydrocarbon (hepta-decane). Finally, an empirical model for de-lubrication has been proposed in Phase III. The model was verified in an industrial furnace. It has been observed that there exists a very good correlation between the proposed empirical model and the experiments performed in Phase II of this study. This study lays down the following guidelines for the development of future sensors and controls: • The development of future sensors should focus in the detection of CO2 and hepta-decane. • Rate of heating determines how fast or slow the lubricant decomposes and finally escapes form the compacted part. • The empirical model may be used, as a means to determine the time a part should reside in a furnace for complete lubricant burnout at a given heating rate."
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Tsai, Cheng-Hsin, and 蔡政信. "Advanced Process Control for Gas Feedback Mechanism of ETCH Process." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/03703828684220452307.
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碩士<br>國立中興大學<br>資訊科學與工程學系所<br>101<br>The main goal of this thesis is to design an algorithmic model for the dry etch machine to calculate the optimal gas flow before the process starts. The method is to utilize the parameter function of the machine to adjust the gas flow in real time. This model has been practically applied in the semi-conductor plants to reduce the unit of critical dimension of the etch process from 40nm to 30nm.
This algorithmic model is created on the basis of the advanced process control (APC) system. Firstly, we get the bias of gas through the feed-forward and feedback schemes of the APC. Secondly, we adjust the weighting effect of the bias of gas by the radio frequency time of the chamber. Finally, we optimize the bias of gas according to the interaction between gas in the center area and in the edge area of the chamber. Through the method mentioned above, this model can make the yield of the product better.
Finally, as the machine becomes unstable after maintenance and repair, the model implements the pilot run. The machine process a limited quantity of products to ensure the quality measurement meets the expectation before the full release. This mechanism can minimize the rework ratio.
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Chu, Yuan-Te, and 朱員德. "Conflict Detecting Mechanism for Business Process Integration." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/64926261750994737076.
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碩士<br>國立中正大學<br>資訊管理學系<br>91<br>While enterprises today are aware of the competitive role of information technology, various kinds of application systems have been implemented to support their daily business operations. However, those systems may be developed or acquired at different time from different vendors, and even incompatible with each other. Thus, for the sake of integration, a lot of standards and technologies have been addressed to draw an integral vision in the field of enterprise application integration (EAI).
The concept of the emerging Web Services has come up to promise that enterprises can deploy a new digital service as soon as possible by composing existed application systems. In such integration context, operational processes of heterogeneous systems were seamlessly controlled and put into integration through meta-processes. It could preserve original systems’ autonomy and enhance flexibility and agility. As a result, in this paper, the researcher tried to shed a light on the design of these meta-processes and proposed a conflict detecting mechanism (CDM) which plays an aided role for the process designers. A prototype has been developed to evaluate feasibility of the CDM, and the research result shows that it is useful in guiding process designers to correct and improve their designed meta-processes.
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Wang, Hsin-Hsiang, and 王信翔. "Mechanism of electrochemical oxidation process in dye degradation." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06574676324321243415.
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碩士<br>淡江大學<br>水資源及環境工程學系碩士班<br>100<br>This study tries to confirm a three pathways, namely the primary oxidant, the second oxidants and the electrode oxidation, theory of electrochemical oxidation process in the degradation of dye solution. The electrochemical oxidation for degradation of various dyes including azo and anthranquinone dyes with different solubility were tested in this study. The experiments of direct and indirect of electrochemical oxidation with NaCl and Na2SO4 as electrolyte and RuO2 and graphite as electrode were performed and compared. The comparison of direct and indirect dye electrochemical oxidation is to evaluate the cases with and without electrode oxidation. The comparison confirms that oxidation with three pathways in the direct electrochemical oxidation is more efficient than that of indirect process without electrode oxidation. The comparison of dye electrochemical oxidation by using NaCl and Na2SO4 as electrolytes is to evaluate the cases with primary oxidant OCl- and without primary oxidant. The comparison confirms oxidation with primary oxidant OCl- in the electrochemical oxidation with NaCl as electrolyte is more efficient than that with Na2SO4 as electrolyte without primary oxidant. Since the secondary oxidant such as O3 or OH radicals OH- exists in a short period and their concentrations are usually unknown or are difficult to measured, this pathway was only qualitatively observed in this study.
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Lin, Chih-An, and 林芷安. "Process Safety Assessment Mechanism Improvement in Semiconductor Industry." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/sm99ar.
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碩士<br>國立交通大學<br>理學院應用科技學程<br>108<br>The main purpose of process safety management is to help public institutions prevent the occurrence of major process accidents such as fire, explosion and leakage when manufacturing, disposing and using hazardous chemicals; or minimize the impact when it occurred.
Process Safety Management is a systematic management approach to planning, implementation, check and action (PDCA) to identify and assess hazards and risks that may occur in the process, and to take effective control and preventive measures. The overall risk of the process is reduced to an acceptable level as much as possible to ensure the safety and healthy.
To improve the process safety management system and process safety culture in the semiconductor industry, this study reviews the development history of process safety management all of the world and takes the improvement of the preliminary hazard analysis in the process safety assessment of a semiconductor industry in Taiwan as an example. This study will analyze the current implementation of the process safety management of the institution, and then understand the importance of preliminary hazard analysis and classification of relative hazard levels. The research results show that the design of simple and clear definition of relative hazard classification in the process safety management method can effectively improve the potential hazard of the process in the factory. Also can quickly and clearly identify the hazard, then achieve the effect of personnel on the safety awareness. I hope this research can help domestic semiconductor institutions to achieve more effective process safety management methods.
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HE, ZHENG-YI, and 何正義. "Mechanism of a high energy density beam penetration process." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/64177692045349513645.
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Pan, Chun-Fan, and 潘俊帆. "The Personal Knowledge Process Mechanism Base on Bayesian Network." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/89908897306858483586.
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碩士<br>東海大學<br>工業工程學系<br>89<br>The way to acquire information in the world has been changed by Internet dramatically. Everyone can have access to the information easily from the Internet. Unlike the old days, you don’t have to transport to the other location in having access to the information that is located in that specific geographical area. Hook up your PC to the Internet port and send your keywords to the search engine and catalog service. Waiting for few moments, the required information will be shown upon your screen. But, due to the easiness of acquiring information, the information explosion becomes very sever and the quality of the information deteriorated very quickly, accordingly.
Usually, we asked the expert to shorten the acquired keywords list. However, due to the information explosion and the variant of the requests, it is very difficult to have the “expert” besides and respond in real time. In this research, we have adopted the Bayesian Network (BN) approach and successfully applying the BN approach in constructing the group knowledge network and the individual knowledge network. The results displayed the promises of implementing BN in the future Internet world in improving the quality of the acquired information.
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Liu, Li-Chia, and 劉力嘉. "Application of Referendum mechanism in Taiwan’s Urban Planning process." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/36198137955154477934.
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碩士<br>逢甲大學<br>都市計畫所<br>93<br>The construction of the Fourth Nuclear Power Plant and Ping-Ling freeway interchange trigger the public opinion. Currently referendum is hottest issue between politics and news. Despite referendum enforcement probably generated dispute, this study just concentrated in research into its implement.
How wide referendum’s law will affect in urban planning? Whether it can overwrite the urban planning resolution? What essential condition did referendum need? Urban planning goes toward Citizen Participation and authority delegation, therefore the referendum ought to draft conceptual direction in urban planning.
Research categorical point out “What planning stage will need referendum to make final decision?“ and “What is best timing for apply referendum into urban planning process?“ The study concludes referendum’s orientation in urban planning from U.S. and Europe. Through publication and article research, which provided the arguments for and against the use of initiative and referendum and outlines the spirit taken from Arizona, California and Colorado for those seeking to understand how to use initiative and referendum to their best advantage?
This study looking for regularity from each case, and let urban planning administer make expedient plan when face to the similar discord. During plan making, must be let information transparently, and reduce citizenry conflict, and let people know sentiment.
Studies hold referendum enters urban planning after public hearing and plan implementation. Apply referendum into urban planning after public and plan implementation will be a good timing and let referendum workable, under this circumstance, this study ensure the urban planning and referendum can reach the win/win statues.
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Ho, Ming-zhe, and 何明哲. "Failure mechanism of wire bonding in IC package process." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/30674209529454619280.
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碩士<br>國立中山大學<br>電機工程學系研究所<br>92<br>Aluminum bond pads on semiconductor chips play an important role in IC device reliability and yield. In the paper, the vertical tension loading transferred from the capillary is clarified as the direct driving force for bond pad metal peeling. The crack on the bonding pad is identified as the root cause of the pad peeling. It is simulated by finite element method to find the effect of driving force resulting in the crack during the ultrasonic wire bonding process. It indicated that the horizontal vibration of the capillary controlled by ultrasonic power of the bonding machine was the main factors led to the crack on the bonding pad as well as its propagation into the oxide layers in chip.
The degradation of Au wire/Al bond pad has become a major bonding failure problem. It is because that the molding resin with low thermal stability (e.g. bi-phenyl epoxy resin) and the IC devices under high thermal environments were used in packaging process. For the lifetime to bond failure, the bi-phenyl epoxy molding becomes shorter than that for cresol novolac epoxy due to the corrosion reaction of Au-Al intermetallics with bromine (Br) contained in the resin compounds. It was clarified that the reactive intermetallic was Au4Al phase formed in the bond interface.
In addition, by utilizing the SEM, AES, EDS and XPS techniques, it could be carried out to reveal and identify defects underneath Al layer, and the contaminated Al bond pads could cause poor intermetallic growths led to the failed or unreliable connections from the chip to the outside world.
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Su, Hung-Wei, and 蘇泓瑋. "Study of Optimal Bidding Process Mechanism for Spinning Reserve." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/2br5a7.
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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>103<br>The electric power industry is a main energy industry at Taiwan, so the security constrained dispatch is very important for all industry and the family life. The fuel cost increases in recent years, the Taiwan Power Company (TPC) has run into a loss because TPC can’t adjust electricity price. The government has one idea of liberalizing the electricity market. In the competitive electricity market, security dispatch resources can be acquired from the bilateral contracts or the ancillary service market. All participants must share the system security dispatch cost. The one of security dispatch resources is Spinning Reserve (SR).
This thesis proposes two kinds of bidding process models based on the spinning reserve including “capacity model” and “integrated model” for the ancillary services market. Capacity model: the participants get a lower price but when accidents happen, it may cost higher than others. Integrated model: The participants get a higher price but when accidents happen, it can avoid additional power cost. Finally, this thesis considers how to dispatch in the system congestion state to achieve the minimum cost target.
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Ciou-Long, Jheng, and 鄭秋龍. "Developing Coordination Mechanism for SOA-Based Dynamic Service Process." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/86854043123541693157.
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碩士<br>國立屏東科技大學<br>工業管理系所<br>101<br>This study addresses the conflict problem that arises in a SOA (Service Oriented Architecture) based environment in which any process is adjusted or revised, or any schedule is rearranged subject to limited service resources and guaranteed service levels. In the SOA based environment, every activity or task is regarded as a service. The service, following SOA standards to be coded into Web Service, will provide specific functions through the Internet. SOA is a distributed computing architecture which uses open standards. Web Services therefore are loose-coupled, reusable, inter-operatable and can be assembled flexibly to form dynamic service processes to meet user demands and context variations. The Web Services in the service processes can be roughly classified into two categories, the software-based service and the human-based service. The human-based services mostly are capacity-limited and conflicts are then very likely to occur once any service process is adjusted. To solve this problem, this study proposes an agent based coordination mechanism for the SOA based dynamic service processes. Further, to evaluate the validity of the proposed mechanism, this study executed some experiments. The experiments showed that the coordination mechanism can effectively help service processes adjust themselves and then lessen the impacts caused by the service process changes.
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QIU, ZHI-ZONG, and 邱志宗. "A mechanism supporting resilient process in the DMINIX system." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/98103647056291894661.
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Yang, Tsai-wei, and 楊采薇. "Quality Control Process Apply for Cloud Services Monitoring Mechanism." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/77898577046424839712.
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碩士<br>國立中央大學<br>資訊管理學系<br>101<br>With the rise of Cloud Computing, cloud application services have become more popular and will be affected by IaaS’s quality of service. The problems cloud application services encountered be recognized or not will affect problem-solving time and quality of service, so quality control of cloud application service is an important issue. There are some researches and tools for IaaS resources, application and SLA monitoring. Using these cloud monitoring methods for cloud application services can only check the status of the service but not recognize the problems. We proposed a mechanism that used traditional quality control process for cloud services monitoring, and used CSEP Cloud Security Experimental Platform as example. Our mechanism including a period monitor and a trace monitor for finding problems.
The cloud monitoring mechanism we proposed has been proven that it can recognize six CSEP main service problems and IaaS SAMEVED’s API service problems. Our mechanism can find the problems and provide some error messages to CSEP admin and users help for problem-solving and for giving other cloud application services monitoring as a reference.
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KE, CHENG-GUO, and 柯成國. "Extrahepatic obstructive jaundice: investigations on the mechanism and the process." Thesis, 1985. http://ndltd.ncl.edu.tw/handle/64879300529283496609.
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Lin, Cheng-Nan, and 林政男. "A Study Of Technology Transfer Mechanism For IC Packing Process." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/77102061720626710693.
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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>92<br>The current packaging trend toward smaller and thinner package has pushed the manufacturing technology to the limit. Due to fast development of encapsulation technology, the need for shortening factory time and upgrading technological ability are vital to promote companys’ competitiveness. Most of IC packing factory are expanding resources to adapt on the technology development needs. Technology transfer methods are utilized to effectively cope with the technology trend.
This research takes technology suppliers, characters of the technology and receivers of technology as three major independent variables. In other words, the negative effect of the absorptive capacity can be reduced effectively by using proper technology transfer mechanism and thus achieving satisfactory performance. In the technology transfer process , in-depth factors other than existing procedures and rules are considered. This will affect the effectiveness and goals of the transfer. Besides, the technology characteristics and technology transfer performance are related to each other. The knowledge and ability to technology transfer with shorter gap between technology provider and accepter, help developing new products and improving management process with consolidated firm competitiveness and has become the significant theme of the 21st century.
Keyword: Technology transfer、IC Package
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Liao, Chia-Hsiung, and 廖嘉雄. "The Study of the Bayesian-network-based Knowledge Process Mechanism." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/75806585554332898898.
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碩士<br>東海大學<br>工業工程學系<br>88<br>Recently, Knowledge Management becomes the important competitiveness of enterprise and the trend of management theory. Now, the tools of knowledge management include group ware and intranet, etc.. But, these tools are brokers and responsible for knowledge or information collection and dispatching. The traditional knowledge process tool, expert system, is not good enough about dynamic and uncertainty problem. This research proposes a mechanism to solve dynamic and uncertainty problem, and combine local knowledge with it.
In this research, network-based representation is adopted, like Bayesian Network. The probability model and learning ability of Bayesian network are used to deal with dynamic and uncertainty problem. The man-machine-balanced cooperated model is used to be learning mechanism of Bayesian network. With the cooperation between user and system, and the function of role-shift between man and machine, user’s knowledge is integrated with system. Finally, the car-diagnosis problem is conducted to illustrate the power of the design. The result of the research is highly positive.
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Wu, Ching-Lin, and 吳清麟. "The Mechanism of Remote Association in the process of Creativity." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/94407061505583987844.
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博士<br>國立臺灣師範大學<br>教育心理與輔導學系<br>103<br>The ability of remote association is important to the creativity. By the idea of Associative Theory, Mednick developed the Remote Associates Test (RAT) to measure the creativity. Among previous studies of problem solving process in cognitive neuroscience approach, it generally emphasized the role of insight but ignored the work of remote association which is essential to solve the problem. Therefore, we know less about the neural correlates of remote association and the creativity. To address this issue, present study develops the remote association and near association tests according to Associative Theory, and investigates the neural correlates of remote and near associations from the perspectives of functional and structural MRI. In study 1, the behavioral indices of subjects in near and remote association tests were compared, result showed that problem solving time was longer, the correct percentage was lower, the correlation with fluency test was higher, and the times of A-HA was fewer in the remote association test than in near one. In study 2, it used the technique of fMRI to record the change of Blood Oxygenation Level-Dependent (BOLD) in two seconds before the problem solved for finding the mechanism of near and remote association and analysis the key of remote association. The result shows that remote association was correlated to the activation of the PHG (Parahippocampal Gyrus), the IPL (inferior parietal lobe), the MTG (middle temporal gyrus), and the STG (superior temporal gyrus); while near association was correlated to the arousal of the MFG (middle frontal gyrus) and the SFG (superior frontal gyrus). Besides, the STG and MTG where are responsible of semantics retrieval and working memory monitoring were found to be highly relevant to the key of remote association. The study 3 was a structural neural image study and analyze the DTI (Diffusion Tensor Imaging) pictures according to the Graph Theoretical Analysis. After controlling the gender, age and intelligence factors of subjects, it shows that remote association was positively correlated to the global efficiency of brain networking but negatively correlated to the standardized local efficiency and the small-worldness. It also shows that remote association was positively correlated to the activation of MTG,FG (fusiform gyrus), IPL, the insula, median cingulate, AG (angular gyrus), calcarine fissure, and SPG (superior parietal gyrus) as well as to the node efficiency of these brain areas. As for the near association, it found to be negatively relevant to the global efficiency. Present study is the pioneer which investigates the neural correlates of remote association in the process of creativity by the perspectives of functional and structural MRI. The study results contribute the overall empirical data for the physiological basis of creativity.
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Kuo, Chung-Ming, and 郭崇銘. "The study of Quickcast shell fracture mechanism under burnout process." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/90504481552510285410.
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碩士<br>國立高雄應用科技大學<br>模具工程系<br>97<br>The objective of this study is to analyze the thermal expansion effect of rapid prototype during the burnout process in the course of investment casting. Conventionally, investment casting wax was applied to be the sacrificial pattern. A major impact rapid prototyping processes have had on investment casting is to replace the wax pattern with rapid prototype part. This replacement enables the possibility to fabricate a complex pattern in a matter of hours and to provide a casting in a matter of days. Another advantage is the low cost of producing castings in medium lot sizes. However, the thermal expansion condition becomes complicated because the crack of ceramic shell could be caused by rapid prototype expansion.
In this study, Taguchi experimental method is adopted to study various factors in the ceramic shell crack. Four controllable factors are the wall thickness of the rapid prototype, span and depth of the webbed pattern inside the prototype and the thickness of ceramic shell. Finite element method was used to analyze the thermal stress generated during the burnout process both on the rapid prototype and ceramic shell. Experimental study was also carried to compare with the results from simulation.
The numerical result shows that the thickness of the web pattern plays the most important role to the shell cracking. Also from the result, the inside stress of the shell mold could be reduced when the thickness in rapid prototyping gets thinner and the span is increased. The thermal stress will become larger when the thickness of the shell is thicker.
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HE, ZI-CHENG, and 何子誠. "Design of the service-process binding mechanism in distributed environment." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/51801404691862847031.
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Hung, Chi-Yen, and 洪啟硯. "Study on Optimization of Carbon Dioxide Mechanism in Carbonated Process." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/yr7e94.
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Lin, Wan-Ting, and 林婉婷. "INPR: A Mechanism to protect installation process on Android adb." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/wxfd3u.
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碩士<br>國立中央大學<br>資訊工程學系<br>106<br>With high market share of Android devices, more and more researchers are focusing on their security issues. Android provides many useful tools for developers, like Android Debug Bridge (adb). Developers can use adb for debugging Application and accessing many kind of resources on Android devices. Although adb is so powerful and convenient for developers, it is able to become an approach to a terrible attack. With most users’ lack of security awareness and insufficient protection on Android adb, the attacker can obtain some personal information from users or even to inject malicious Application in users’ devices. These attacks can lead to a disaster situation.
In this paper, we design and implement a tool named Installation Protector (INPR) to prevent installation of malicious APK through adb. It will show up the confirmation Dialog while adb launches the installation command, and block the action on users’ acconunt. INPR only alerts the user when the potential risk comes from adb for installation, which makes the interference as less as possible to provide developer an undisturbed environment, and users obtain a safe environment when using adb.
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Tsai, Kuo-Ming, and 蔡國銘. "ANALYSIS OF PROCESS MECHANISM AND MODEL FOR DIE-SINKING ELECTRICAL DISCHARGING." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/00194911395235991480.
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博士<br>國立清華大學<br>動力機械工程學系<br>90<br>Electrical discharge machining has been employed for cutting special alloys and hardened steel for some decades; however, the process has still been treated as an empirical art rather than a technical skill because of the complex physical phenomena are incompletely understood during the process. With the advent of neural networks for modeling manufacturing process, the applications of neural networks on modeling of electrical discharge machining could be thoroughly studied and evaluated for better understanding the process; and, as a further step, the results could lead to the improvement of the process efficiency. In this dissertation, complete review on the published literatures has been conducted for including the pertinent process parameters of the process. Then, Design of Experiment has been established for screening the most important parameters in order to compare the effectiveness of various models, namely a semi-empirical model and seven types of neural networks models. The semi-empirical model has been based upon fundamental laws of physics together with dimensional analysis for pure electrode and work materials. Whereas, the neural networks have been completely accounted for the through study on the experimental data given by the design of experiment procedures. The erosions of both tool and work-piece and the surface roughness of the work-piece materials have been measured and analyzed for the purpose of testing the models. With the appropriate training process, the predictions from both the empirical model and the various neural networks models have been compared to the checking experimental results. Evidently, the neural networks have shown better agreement than the empirical model in this study. This could lead to the successful applications of modeling of electrical discharge machining on the shop floor in the near future.
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Wang, Ta-chung, and 王大中. "Surveillance Mechanism for the Production Process - Based On ISO 9001:2000." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/46715651501192328230.
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碩士<br>逢甲大學<br>工業工程與系統管理學研究所<br>95<br>ISO Quality Management Systems have gained increasing importance in recent years. However, the effort of properly incorporating such a management model is often overlooked. In this thesis, a highly efficient and effective Surveillance Mechanism for the Production Process has been developed. The mechanism is based on ISO 9001:2000 and utilizes Processes Maps to efficiently integrate the ISO requirements. e-Record keeping tools were also established and implemented. The developed system has been applied to semiconductor company X and as a result, the production performance indexes such as the yield rate and the re-work rate have improved noticeably. It is evident to validate that this Surveillance Mechanism has positively improved the production process of that company, and serves as a legitimate reference for other businesses.
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Wang, Shih-Yuan, and 王詩淵. "Exploring the microscopic mechanism how electromagnetic radiation affects blood coagulation process." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/14593002391668991185.
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碩士<br>國立雲林科技大學<br>電子工程系<br>102<br>In this study, we explored the mechanism how modulated radiation affected blood coagulation by measuring the intercellular interaction among red blood cells (RBCs) during coagulation process. By optical tweezers, we evaluated pN-range micro-interaction between coagulating RBCs by determining the power required to trap them. By deriving the coagulation curve of the cellular interaction versus coagulation time, we found the three distinct phases of human coagulation process. Depending on the position of NIR radiation relative to the coagulating RBC, we discovered the mechanism electromagnetic radiation could promote or suppress the blood coagulation by either enhancing or attenuating the interaction among coagulating RBCs in coagulation process. Besides, we found that radiation modulated with ELF (extremely low frequency) could induce resonant oscillation of the coagulating RBC, which could moderate the impact of electromagnetic radiation on blood coagulation.
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Ke, Therm-Hoo, and 柯盛夫. "A study of springback mechanism in the sheet-metal bending process." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/68333225167356644963.
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碩士<br>國立臺灣大學<br>機械工程學研究所<br>92<br>The main defects on bending of the sheet-metal forming are springback and accuracy of forming on shape fixation.Analyzing V-die bending and L-bending by using the software of the finite element method to understand the mechanism of bending and the parameters of affecting springback.On the part of reducing springback,research the availability of reducing springback methods on bibliographies and complete the analysis of springback mechanism for them.From the analysis of springback mechanism,we provide a new method on reducing springback-Inverse bending method,and confirm it is feasible.So, the design principle of inverse bending method can be as the reference on die of inverse bending method. On the part of accuracy of forming,based the bend allowance and length of change,modify the neutral axis offset to get more accuracy sheet-metal length before forming which is contributive for the industry.