Relevant bibliographies by topics / Sheet transfer systems

Academic literature on the topic 'Sheet transfer systems'

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Published: 30 May 2022
Last updated: 31 May 2022

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Journal articles on the topic "Sheet transfer systems"

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Takeo, Takashi, Masato Kawaguchi, Taichi Ishihara, and Toru Matsuzaki. "Effectiveness of Magnetic Sheets in Suppressing Magnetic Leakage in Automobile Wireless Energy Transfer Systems." Advances in Science and Technology 90 (October 2014): 51–56. http://dx.doi.org/10.4028/www.scientific.net/ast.90.51.

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Recently, wireless energy transfer techniques are being developed for hybrid (HEV) or electric (EV) vehicles. However, without taking any measures, magnetic field strength around energy transfer systems that employ solenoid type antennas is known to exceed regulated values in most countries. In this study, the application of magnetic sheets, which are widely used as EMC components, is proposed to suppress the magnetic field leakage from an automobile energy transfer system and the ability of magnetic leakage suppression with the magnetic sheet has been evaluated by means of electromagnetic simulation. Through these investigations, desirable system arrangements are discussed. As a result, if combined with a metal plate, non-conductive magnetic materials having large permeability has been found to be preferable.
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DAHLBURG, RUSSELL B. "Transition to turbulent electric current sheet reconnection." Journal of Plasma Physics 57, no. 1 (January 1997): 35–45. http://dx.doi.org/10.1017/s0022377896005247.

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Electric current sheets develop in the solar corona when different flux systems come into contact. At these sheets magnetic energy is transformed into heat and kinetic energy by means of reconnection. We have previously demonstrated how to accelerate neutral sheet energy conversion by means of a transition to turbulent reconnection via ideal, three-dimensional secondary instabilities, as conjectured by Montgomery. In this paper we describe how our previous results are modified by the presence of a finite mean sheetwise magnetic field. We find a stabilization from this field, due to a decrease in energy transfer from the basic magnetic field to the three-dimensional perturbed fields. An increase in perturbed dissipative energy losses is also observed.
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Herzfeld, Ute C., James Fastook, Ralf Greve, Brian McDonald, Bruce F. Wallin, and Phillip A. Chen. "On the influence of Greenland outlet glacier bed topography on results from dynamic ice-sheet models." Annals of Glaciology 53, no. 60 (2012): 281–93. http://dx.doi.org/10.3189/2012aog60a061.

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AbstractPrediction of future changes in dynamics of the Earth’s ice sheets, mass loss and resultant contribution to sea-level rise are the main objectives of ice-sheet modeling. Mass transfer from ice sheet to ocean is, in large part, through outlet glaciers. Subglacial topography plays an important role in ice dynamics; however, trough systems have not been included in bed digital elevation models (DEMS) used in modeling, because their size is close to the model resolution. Using recently collected CReSIS MCoRDs data of subglacial topography and an algorithm that allows topographically and morphologically correct integration of troughs and trough systems at any modeling scale (5 km resolution for SeaRISE), an improved Greenland bed DEM was developed that includes Jakobshavn Isbræ, Helheim, Kangerdlussuaq and Petermann glaciers (JakHelKanPet DEM). Contrasting the different responses of two Greenland ice-sheet models (UMISM and SICOPOLIS) to the more accurately represented bed shows significant differences in modeled surface velocity, basal water production and ice thickness. Consequently, modeled ice volumes for the Greenland ice sheet are significantly smaller using the JakHelKanPet DEM, and volume losses larger. More generally, the study demonstrates the role of spatial modeling of data specifically as input for dynamic ice-sheet models in assessments of future sea-level rise.
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Roy, Rajarshi, Ranjit Thapa, Shibsankar Biswas, Subhajit Saha, Uttam Kumar Ghorai, Dipayan Sen, E. Mathan Kumar, et al. "Resonant energy transfer in a van der Waals stacked MoS2 – functionalized graphene quantum dot composite with ab initio validation." Nanoscale 10, no. 35 (2018): 16822–29. http://dx.doi.org/10.1039/c8nr04412k.

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Porter, Michael A., Dennis H. Martens, Thomas Duffy, and Sean McGuffie. "High-Temperature Heat Exchanger Tube-Sheet Assembly Investigation With Computational Fluid Dynamics." Journal of Pressure Vessel Technology 129, no. 2 (November 20, 2006): 313–15. http://dx.doi.org/10.1115/1.2716436.

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Many modern sulfur recovery unit process waste heat recovery exchangers operate in high-temperature environments. These exchangers are associated with the thermal reactor system where the tube-sheet–tube-ferrule assemblies are exposed to gasses at temperatures approaching 3000°F. Because sulfur compounds are present in the process gas, the carbon steel tube sheet and tubes in the assembly will be deteriorated by sulfidation as the operating metal temperature rises above 600°F. Ferrule systems are used to protect the carbon steel from exposure to excessive temperatures. The temperature distribution in the steel tube-sheet–tube-ferrule system is affected by process gas flow and heat transfer through the assembly. Rather than depend on “assumed” heat transfer coefficients and fluid flow distribution, a computational fluid dynamics investigation was conducted to study the flow fields and heat transfer in the tube-sheet assembly. It was found that the configuration of the ferrule installation has a large influence on the temperature distribution in the steel materials and, therefore, the possible sulfidation of the carbon steel parts.
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Hayat, T., Z. Iqbal, and M. Mustafa. "Flow of a Second Grade Fluid over a Stretching Surface with Newtonian Heating." Journal of Mechanics 28, no. 1 (March 2012): 209–16. http://dx.doi.org/10.1017/jmech.2012.21.

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ABSTRACTThis article describes the boundary layer flow and heat transfer in a second grade fluid over a stretching sheet. Heat transfer analysis is carried out in the presence of a Newtonian heating. The partial differential systems have been transformed into the ordinary differential systems by appropriate relations. Homotopy analysis method (HAM) is used for the solutions. Graphical and tabulated results are presented to see the significance of influential parameters on the velocity and temperature fields. It is seen that temperature profiles and heat transfer rate significantly increase by increasing the conjugate parameter (γ) for Newtonian heating.
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Asensio, M. C., and J. Seyed-Yagoobi. "Simulation of Paper-Drying Systems With Incorporation of an Experimental Drum/Paper Thermal Contact Conductance Relationship." Journal of Energy Resources Technology 115, no. 4 (December 1, 1993): 291–300. http://dx.doi.org/10.1115/1.2906435.

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A theoretical model for simulation of conventional steam-heated cylinder dryers is developed by considering the heat and mass transfer in a porous sheet during drying. Expressions for sheet shrinkage as a function of mass of water removed and for reductions in sheet porosity are derived for inclusion in the model. The interface thermal contact conductance of moist paper handsheet/metal interfaces has been experimentally investigated. A resulting empirical correlation, representing the thermal contact conductance between the cast iron dryer surface and paper web, is incorporated into the drying simulation model to reflect reductions in heat input to the sheet during drying. Finite difference techniques are used to obtain the numerical solutions. Average sheet moisture content and temperature along the length of the dryer section as well as average evaporation rates per cylinder are predicted by the model. Consideration of the internal dynamics of the drying process allows profiles of sheet moisture content, temperature, liquid flux, and vapor flux through the sheet thickness to be developed throughout the dryer section. Drying results are consistent with actual production cases. The model can be used to design dryer sections, study changes in operating conditions or in layout of a multi-cylinder dryer, or simulate the application of enhanced drying devices to a conventional drying section. The effect of the drum/paper contact conductance on drying rates and resultant dryer section requirements is provided as an example application of the model.
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Hisatomi, Takashi, and Kazunari Domen. "(Invited) Particulate Photocatalyst Systems for Sunlight-Driven Water Splitting." ECS Meeting Abstracts MA2018-01, no. 31 (April 13, 2018): 1891. http://dx.doi.org/10.1149/ma2018-01/31/1891.

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Sunlight-driven water splitting has been studied actively for production of renewable solar hydrogen as a storable and transportable energy carrier [1-3]. Both the efficiency and the scalability of water-splitting systems are important factors for practical utilization of renewable solar hydrogen because of the low areal density of solar energy. Particulate photocatalyst systems do not involve any secure electric circuit and thus can be spread over a wide area by inexpensive processes potentially. In this regard, activation of particulate photocatalysts and development of their reaction systems are important subjects. A semiconductor photocatalyst can split water into hydrogen and oxygen thermodynamically when the band gap straddles the potentials of the hydrogen evolution reaction (0 V vs. RHE) and the oxygen evolution reaction (+1.23 V vs. RHE). In addition, it is generally necessary to modify photocatalysts with appropriate cocatalysts in order to facilitate charge separation and surface redox reactions. The authors’ group has studied various semiconducting materials including oxides, (oxy)nitrides, and (oxy)chalcogenides for photocatalytic water splitting [1]. Recently, we have found that doping Al into SrTiO3 boosts the water splitting activity by two orders of magnitude [4]. The resultant Al-doped SrTiO3 achieved an apparent quantum yield (AQY) of 30% at 360 nm. Through the optimization of the preparation and modification methods of Al-doped SrTiO3, the AQY of photocatalytic water splitting has been upgraded to 56% and higher at 365 nm. Processing of such particulate photocatalysts into potentially extensible forms is to be presented [5]. Two different photocatalysts can also be combined so that hydrogen and oxygen are generated on the different photocatalysts [1,3]. Recently, the authors’ group has developed particulate photocatalyst sheets consisting of the hydrogen evolution photocatalyst (HEP) and the oxygen evolution photocatalyst (OEP) embedded into conductive layers by particle transfer [6-11]. A photocatalyst sheet consisting of La- and Rh-codoped SrTiO3 as the HEP and Mo-doped BiVO4 as the OEP embedded into a carbon conductor exhibits a solar-to-hydrogen energy conversion efficiency of 1.0% at ambient pressure [10]. The photocatalyst sheet shows significantly higher water splitting activity than the corresponding powder suspension systems, because the conductor layer transfers photogenerated electrons between photocatalyst particles effectively. In addition, evolution of hydrogen and oxygen in close proximity allows to prevent generation of pH gradient during the water splitting reaction. Therefore, the photocatalyst sheet is scalable directly without sacrificing the high activity. However, the absorption edge wavelengths of La- and Rh-codoped SrTiO3 and Mo-doped BiVO4 are 520 nm at most. It is necessary to utilize photocatalysts with longer absorption edge wavelengths to pursuit higher STH values. We have found that some (oxy)chalcogenides and (oxy)nitrides with narrower band gap energies are applicable as the HEP and the OEP of particulate photocatalyst sheets. In this talk, recent progress and future challenges in photocatalytic water splitting and system development will be presented. Hisatomi et al., Chem. Soc. Rev. 2014, 43, 7520. Hisatomi et al., Catal. Lett. 2015, 145, 95. Hisatomi et al., Faraday Discuss. 2017, 198, 11. Ham et al., J. Mater. Chem. A 2016, 4, 3027. Xiong et al., Catal. Sci. Technol. 2014, 4, 325. Minegishi et al., Chem. Sci. 2013, 4, 1120. Wang et al., J. Catal. 2015, 328, 308 Wang et al., Nat. Mater. 2016, 15, 611 Wang et al., Faraday Discuss. 2017, 197, 491 Wang et al., J. Am. Chem. Soc. 2017, 139, 1675. Hisatomi et al., Curr. Opin. Electrochem. 2017, 2, 148.
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Khan, Muhammad Ijaz, Ahmed Alsaedi, Salman Ahmad, and Tasawar Hayat. "Computational analysis of nanofluid and hybrid nanofluid in Darcy’s squeezing flow with entropy optimization." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 9 (September 2, 2019): 3394–416. http://dx.doi.org/10.1108/hff-02-2019-0133.

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Purpose This paper aims to examine squeezing flow of hybrid nanofluid inside the two parallel rotating sheets. The upper sheet squeezes downward, whereas the lower sheet stretches. Darcy’s relation describes porous space. Hybrid nanofluid consists of copper (Cu) and titanium oxide (TiO2) nanoparticles and water (H2O). Viscous dissipation and thermal radiation in modeling are entertained. Entropy generation analysis is examined. Design/methodology/approach Transformation procedure is implemented for conversion of partial differential systems into an ordinary one. The shooting scheme computes numerical solution. Findings Velocity, temperature, Bejan number, entropy generation rate, skin friction and Nusselt number are discussed. Key results are mentioned. Velocity field increases vs higher estimations of squeezing parameter, while it declines via larger porosity variable. Temperature of liquid particles enhances vs larger Eckert number. It is also examined that temperature field dominates for TiO2-H2O, Cu-H2O and Cu-TiO2-H2O. Magnitude of heat transfer rate and skin friction coefficient increase against higher squeezing parameter, radiative parameter, porosity variable and suction parameter. Originality/value The originality of this paper is investigation of three-dimensional time-dependent squeezing flow of hybrid nanomaterial between two parallel sheets. To the best of the authors’ knowledge, no such consideration has been carried out in the literature.
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Ramesh, G. K., B. J. Gireesha, and C. S. Bagewadi. "Heat Transfer in MHD Dusty Boundary Layer Flow over an Inclined Stretching Sheet with Non-Uniform Heat Source/Sink." Advances in Mathematical Physics 2012 (2012): 1–13. http://dx.doi.org/10.1155/2012/657805.

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This paper presents the study of momentum and heat transfer characteristics in a hydromagnetic flow of dusty fluid over an inclined stretching sheet with non-uniform heat source/sink, where the flow is generated due to a linear stretching of the sheet. Using a similarity transformation, the governing equations of the problem are reduced to a coupled third-order nonlinear ordinary differential equations and are solved numerically by Runge-Kutta-Fehlberg fourth-fifth-order method using symbolic software Maple. Our numerical solutions are shown to agree with the available results in the literature and then employ the numerical results to bring out the effects of the fluid-particle interaction parameter, local Grashof number, angle of inclination, heat source/sink parameter, Chandrasekhar number, and the Prandtl number on the flow and heat transfer characteristics. The results have possible technological applications in liquid-based systems involving stretchable materials.
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Dissertations / Theses on the topic "Sheet transfer systems"

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Карпенко, Ірина Сергіївна. "Засоби цифрового визначення параметрів стабілізації суміщення фарб в аркушевих друкарських машинах." Doctoral thesis, Київ, 2015. https://ela.kpi.ua/handle/123456789/13874.

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Deckner, Fanny. "Vibration transfer process during vibratory sheet pile driving : from source to soil." Doctoral thesis, KTH, Jord- och bergmekanik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-203946.

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Vibratory driven sheet piles are a cost-effective retaining wall structure, and in coming decades the continued use of this method will be crucial for minimising costs within the construction sector. However, vibratory driven sheet piles are a source of ground vibrations, which may harm structures or induce disturbance. Most urban construction projects face strict limits on permissible vibration level. Being able to reliably predict the expected vibration level prior to construction is therefore highly important. Reliable prediction demands a profound knowledge of the vibration transfer process, from source to point of interest. This thesis focuses on clarifying the vibration transfer process and will serve as a platform for the future development of a reliable prediction model. The vibration transfer process is divided into two main parts: vibration source and vibrations in soil. The different parts in the vibration transfer process are studied and investigated with the help of a literature review, field tests and numerical modelling. Within the scope of this thesis, three field tests have been conducted and a new instrumentation system has been developed. The new instrumentation system enables recording of both sheet pile vibrations and ground vibrations at depth during the entire driving. The field tests aimed to study the vibration transfer from sheet pile to soil and the vibration transfer within a sheet pile wall, as well as the wave pattern in soil. To study sheet pile behaviour during driving a numerical model was developed, which is also meant to serve as a basis for further studies. The main scientific contribution of this thesis is the identification of the sheet pile behaviour during driving. For practical application, the main contribution is the development of an increased knowledge of the vibration transfer process from source to soil, together with the new instrumentation system and the development of the numerical model.
Vibrodriven spont är en kostnadseffektiv stödkonstruktion och i framtiden kommer den fortsatta användningen av denna metod att vara nödvändig för att minimera kostnader för byggprojekt. Vibrodriven spont är dock en källa till markvibrationer, som kan skada byggnader eller orsaka störningar. De flesta byggprojekt måste förhålla sig till strikta krav gällande vibrationsnivåer. Möjligheten att på ett tillförlitligt sätt förutsäga vibrationsnivåerna innan bygget startar är därför av största vikt. Tillförlitlig prognos av vibrationsnivåer i samband med vibrodrivning av spont kräver god kännedom om vibrationsöverföringsprocessen, från källan till det potentiella skadeobjektet. Denna avhandling fokuserar på att förtydliga vibrationsöverföringsprocessen och fungera som en plattform för framtida utveckling av en tillförlitlig prognosmodell. Vibrationsöverföringsprocessen delas in i två huvuddelar; vibrationskällan och vibrationer i jord. De olika delarna av vibrationsöverföringsprocessen studeras och undersöks med hjälp av litteraturstudie, fältförsök och numerisk modellering. Inom ramarna för denna avhandling har tre fältförsök utförts och ett nytt instrumenteringssystem har utvecklats. Det nya instrumenteringssystemet möjliggör mätning av både spontvibrationer och vibrationer på djup i jorden, under hela neddrivningsfasen. Fältförsöken syftade till att studera vibrationsöverföringen mellan spont och jord, vibrationsöverföringen inom en spontvägg samt vågmönstret i jorden under drivning. För att studera spontens beteende under neddrivning utvecklades en numerisk modell, som också kan fungera som en bas för framtida studier. Avhandlingens huvudsakliga vetenskapliga bidrag är identifieringen av spontens beteende under neddrivning. För praktisk tillämpning är det huvudsakliga bidraget förklaringen av vibrationsöverföringsprocessen från källa till jord, det nya instrumenteringssystemet samt utvecklingen av den numeriska modellen.
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Cabello, Gérard. "Developpement et importance physiologique de la fonction thyroidienne chez l'agneau pendant la periode perinatale." Clermont-Ferrand 2, 1987. http://www.theses.fr/1987CLF2E390.

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Books on the topic "Sheet transfer systems"

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Office, General Accounting. Export controls: U.S. controls on trade with selected Middle Eastern countries : fact sheet for the Chairman, Subcommittee on Oversight, Committee on Ways and Means, House of Representatives. Washington, D.C: U.S. General Accounting Office, 1991.

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Office, General Accounting. Aviation safety: Comparison of specific responses in FAA controller questionnaire : fact sheet for Congressional requesters. Washington, D.C: U.S. General Accounting Office, 1989.

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United States. Congress. Senate. Committee on Governmental Affairs. and United States. General Accounting Office., eds. Weapons acquisition: Processes of selected foreign governments : fact sheet for the chairman, Committee on Governmental Affairs, United States Senate. [Washington, D.C.]: The Office, 1986.

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Office, General Accounting. Export controls: U.S. policies and procedures regarding the Soviet Union : fact sheet for the Chairman, Committee on Finance, U.S. Senate. Washington, D.C: U.S. General Accounting Office, 1990.

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Book chapters on the topic "Sheet transfer systems"

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Narayana, Mahesha, and Ramone R. Jackson. "Heat Transfer in a Nanoliquid Flow Due to a Permeable Quadratically Stretching Sheet." In Energy Systems and Nanotechnology, 307–28. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-1256-5_16.

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Tadakuma, Kenjiro, Nobuyuki Tanaka, Yuji Haraguchi, Mitsuru Higashimori, Makoto Kaneko, Tatsuya Shimizu, Masayuki Yamato, and Teruo Okano. "Cell Scooper: A Device for the Rapid Transfer of Living Cell Sheet." In Hyper Bio Assembler for 3D Cellular Systems, 235–47. Tokyo: Springer Japan, 2015. http://dx.doi.org/10.1007/978-4-431-55297-0_14.

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Soltani, Saeed. "“Designing Optimal Valuation Model of Bank Stocks”." In Advances in Business Information Systems and Analytics, 212–33. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1086-5.ch012.

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The growth and diversification of investment and management property have development requirements, so achieving first place economically requires transfer of share of ownership from government to private sector. One of the major requirements of these operations is pricing of shares through stock exchange. The accurate and transparent assessment in assignment of stock value has great importance. So, it has been tried to design optimal model and then determine the bank stock value in public offerings. In this regard, the review of conventional models of stock valuation has been analyzed and the effect of functional variables and balance sheet on the value of bank stocks is investigated. In the statistical stage, the relevant tests have been accepted for 16 banks in Tehran Stock Exchange and Iranian OTC market on a three-year timeframe. The results of research lead to design and specify the optimal model for evaluating of Bank stock.
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Markose, Sheri M., Bewaji Oluwasegun, and Simone Giansante. "Multi-Agent Financial Network (MAFN) Model of US Collateralized Debt Obligations (CDO)." In Simulation in Computational Finance and Economics, 225–54. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2011-7.ch012.

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A database driven multi-agent model has been developed with automated access to US bank level FDIC Call Reports that yield data on balance sheet and off balance sheet activity, respectively, in Residential Mortgage Backed Securities (RMBS) and Credit Default Swaps (CDS). The simultaneous accumulation of RMBS assets on US banks’ balance sheets and also large counterparty exposures from CDS positions characterized the $2 trillion Collateralized Debt Obligation (CDO) market. The latter imploded at the end of 2007 with large scale systemic risk consequences. Based on US FDIC bank data, that could have been available to the regulator at the time, the authors investigate how a CDS negative carry trade combined with incentives provided by Basel II and its precursor in the US, the Joint Agencies Rule 66 Federal Regulation No. 56914, which became effective on January 1, 2002, on synthetic securitization and Credit Risk Transfer (CRT), led to the unsustainable trends and systemic risk. The resultant market structure with heavy concentration in CDS activity involving 5 US banks can be shown to present too interconnected to fail systemic risk outcomes. The simulation package can generate the financial network of obligations of the US banks in the CDS market. The authors aim to show how such a Multi-Agent Financial Network (MAFN) model is well suited to monitor bank activity and to stress test policy for perverse incentives on an ongoing basis.
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Enoki, Toshiaki, Morinobu Endo, and Masatsugu Suzuki. "Introduction." In Graphite Intercalation Compounds and Applications. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195128277.003.0003.

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There are two important features in the structure and electronic properties of graphite: a two-dimensional (2D) layered structure and an amphoteric feature (Kelly, 1981). The basic unit of graphite, called graphene is an extreme state of condensed aromatic hydrocarbons with an infinite in-plane dimension, in which an infinite number of benzene hexagon rings are condensed to form a rigid planar sheet, as shown in Figure 1.1. In a graphene sheet, π-electrons form a 2D extended electronic structure. The top of the HOMO (highest occupied molecular orbital) level featured by the bonding π-band touches the bottom of the LUMO (lowest unoccupied molecular orbital) level featured by the π*-antibonding band at the Fermi energy EF, the zero-gap semiconductor state being stabilized as shown in Figure 1.2a. The AB stacking of graphene sheets gives graphite, as shown in Figure 1.3, in which the weak inter-sheet interaction modifies the electronic structure into a semimetallic one having a quasi-2D nature, as shown in Figure 1.2b. Graphite thus features a 2D system from both structural and electronic aspects. The amphoteric feature is characterized by the fact that graphite works not only as an oxidizer but also as a reducer in chemical reactions. This characteristic stems from the zero-gap-semiconductor-type or semimetallic electronic structure, in which the ionization potential and the electron affinity have the same value of 4.6 eV (Kelly, 1981). Here, the ionization potential is defined as the energy required when we take one electron from the top of the bonding π-band to the vacuum level, while the electron affinity is defined as the energy produced by taking an electron from the vacuum level to the bottom of the anti-bonding π*-band. The amphoteric character gives graphite (or graphene) a unique property in the charge transfer reaction with a variety of materials: namely, not only an electron donor but also an electron acceptor gives charge transfer complexes with graphite, as shown in the following reactions: . . .xC + D → D+ C+x. . . . . .(1.1). . . . . .xC + A → C+x A−. . . . . .(1.2). . . where C, D, and A are graphite, donor, and acceptor, respectively.
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Dicko, Amadou, Seydou Golo Barro, Yaya Traore, and Pascal Staccini. "A Data Warehouse Design for Dangerous Pathogen Monitoring." In Studies in Health Technology and Informatics. IOS Press, 2021. http://dx.doi.org/10.3233/shti210198.

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Emerging diseases are a major public health problem as illustrated by the current coronavirus disease (COVID-19) pandemic. To make the right decisions, public health departments need a decision-making system. In Africa few IT systems have been put in place to help managers of public health in the analysis of their multidisciplinary data. The majority of digital health solutions are operational databases, as well, focused on surveillance activities that do not include the laboratory component. This paper describes the design model and implementation of data warehouse for dangerous pathogen monitoring in a laboratories network. Talend data integration is used to extract data in Excel sheets, transform it and load it into a MySQL database.
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Brint, Steven, and Jerome Karabel. "The Final Transformation in Massachusetts: Market Pressures, Fiscal Crises, and Business Influences, 1971-1985." In The Diverted Dream. Oxford University Press, 1989. http://dx.doi.org/10.1093/oso/9780195048155.003.0012.

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The focus of this chapter is on the shift toward predominantly vocational enrollments in the 1970s, brought on by the combined pressures of market decline, state fiscal crisis, and the political ascendance of conservative business leaders. Nevertheless, it would be misleading to suggest that contrary forces were not in evidence at least in the first few years of the 1970s. The most important of these contrary pressures was the sheer growth of the community college and university systems, which, for a time, encouraged an increase in the absolute numbers of transfers. The community colleges in Massachusetts proved to be at least as attractive in a period of economic retrenchment as they had been in better times. Low-cost, close-to-home two-year colleges were a practical alternative to more expensive higher education. Between 1970 and 1973, the community colleges’ full-time enrollment increased by over one-third, and the other two tiers grew slightly less rapidly. As the system became more vocational in the late 1960s, it also grew. Because of this growth, the absolute number of community college students who transferred to four-year colleges increased, even though the transfer enrollment rates were slowly declining. The number of community college students transferring to the University at Massachusetts at Amherst, for example, increased from just 80 in 1964, when only seven community college campuses were open, to 425 in 1970 and then to 950 in 1972, when twelve campuses were operating at full capacity. In 1973, at the peak of transfer enrollments, 1,165 public two-year college students enrolled at the University of Massachusetts; 680 enrolled in the state colleges; and 525 enrolled in four-year private colleges in Massachusetts.2 Although never more than a small fraction of total community college enrollments, transfer rates did rise dramatically, from approximately 12.5 percent of the sophomore class in 1964 (a rate congenial to the original planners) to nearly 30 percent of the sophomore class in 1973 (Beales 1974). The nationwide decline in the market for college-educated labor in the early 1970s hit Massachusetts with slightly greater force than in other states, being reinforced by a recession in the newly emerging high-technology belt around Boston that was related to the winding down of the war in Southeast Asia.
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Peng, Xiangdong, and Jerson L. Silva. "High-Pressure NMR Studies of the Dissociation of Arc Represser and the Cold Denaturation of Ribonuclease A." In High Pressure Effects in Molecular Biophysics and Enzymology. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195097221.003.0011.

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We begin this article with a brief discussion of the specialized high-resolution NMR instrumentation developed for high-pressure studies of biochemical systems. We then present the potential for the unique information content of high-pressure NMR spectroscopy as illustrated by the results of two NMR studies performed recently in our laboratory. Different denatured states of Arc represser are characterized by one-dimensional (1D) and two-dimensional (2D) NMR. Increasing pressure promotes sequential changes in the structure of Arc represser: from the native dimer through a predissociated state to a denaturated molten globule monomer. A compact state (molten globule) of Arc represser is obtained in the dissociation of Arc represser by pressure, whereas high temperature and urea induce dissociation and unfolding to less structured conformations. The presence of NOEs (Nuclear Overhauser Enhancement) in the β-sheet region in the dissociated state suggests that the intersubunit β-sheet (residues 6–14) in the native dimer is replaced by an intramonomer β-sheet. Changes in 2D NMR spectra prior to dissociation indicate the existence of a predissociated state that may represent an intermediate stage in the folding and subunit association pathway of Arc represser. The cold denaturation study of ribonuclease A has shown that high pressure can be utilized not only to perturb the protein structure in a controlled way but also to lower the freezing point of aqueous protein solutions substantially. As a result, one can access subzero temperatures and carry out cold denaturation studies of proteins. The results of the NMR study of the reversible cold denaturation are compared with the heat and pressure denaturation of bovine pancreatic ribonuclease A. High-resolution NMR spectra of complex molecules in the liquid phase usually exhibit a great deal of structure and yield a wealth of information about the molecule. Therefore, it is not surprising that multinuclear high-resolution Fourier transform NMR spectroscopy at high pressure represents the most promising technique in studies of the pressure effects on biochemical systems (Jonas & Jonas, 1994). The high information content of the various advanced NMR techniques, including 2D NMR techniques such as NOESY, COSY, and ROESY, have yet to be fully exploited in high-pressure NMR experiments.
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Kobayashi, Shiro, Soo-Ik Oh, and Taylan Altan. "Metal-Forming Processes." In Metal Forming and the Finite-Element Method. Oxford University Press, 1989. http://dx.doi.org/10.1093/oso/9780195044027.003.0005.

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In metal forming, an initially simple part—a billet or sheet blank, for example—is plastically deformed between tools (or dies) to obtain the desired final configuration. Thus, a simple part geometry is transformed into a complex one, in a process whereby the tools “store” the desired geometry and impart pressure on the deforming material through the tool-material interface. The physical phenomena constituting a forming operation are difficult to express with quantitative relationships. The metal flow, the friction at the tool-material interface, the heat generation and transfer during plastic flow, and the relationships between microstructure/properties and process conditions are difficult to predict and analyze. Often, in producing discrete parts, several forming operations (preforming) are required to transform the initial “simple” geometry into a “complex” geometry, without causing material failure or degrading material properties. Consequently, the most significant objective of any method of analysis is to assist the forming engineer in the design of forming and/or preforming sequences. For a given operation (preforming or finish-forming), such design essentially consists of (1) establishing the kinematic relationships (shape, velocities, strain-rates, strains) between the deformed and undeformed part, i.e., predicting metal flow; (2) establishing the limits of formability or producibility, i.e., determining whether it is possible to form the part without surface or internal defects; and (3) predicting the forces and stresses necessary to execute the forming operation so that tooling and equipment can be designed or selected. For the understanding and quantitative design and optimization of metal-forming operations it is useful (a) to consider a metal forming process as a system and (b) to classify these processes in a systematic way. A metal-forming system comprises all the input variables relating the billet or blank (geometry and material), the tooling (geometry and material), the conditions at the tool-material interface, the mechanics of plastic deformation, the equipment used, the characteristics of the final product, and finally the plant environment in which the process is being conducted. Such a system is illustrated in Fig. 2.1, using impression die forging as an example.
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"The author did not discover how the transfer pricing issue was ultimately resolved. THE 1872 BRANCH SET OF ACCOUNTS The slow maturing process that started with the setting up of a cost accounting system in the 1820's and 1830's led, in 1872, to the adoption of branch accounting in which each branch of the Company had its own set of accounts. This development placed the Company very close to a modem day cost accounting system used by French companies today. All the basic principles were present in 1872. The July 25, 1872 instruction does not attribute a number to each account and does not group accounts into "classes” as is now done in France. Therefore, the following classification is the researcher’s and consists of five categories: the balance sheet ac­ counts, expense accounts, activity center accounts, perpetual in­ ventory accounts, and manufacturing accounts. 1 — Balance sheet accounts a. “Central administration”: looks like a current account of the Paris Headquarters by the branch. b. "Industrial buildings, tools and machinery” c. "Debts” d. "Drafts on Paris"; to be paid by Paris e. "Drafts on the factory"; to be paid by the factory f. “Cash” 2 — Expenses accounts a. “Supply" b. "Wages" c. “Sundries” 3 — Activity center accounts a. T ransport." In Accounting in France (RLE Accounting), 265. Routledge, 2014. http://dx.doi.org/10.4324/9781315871042-33.

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Conference papers on the topic "Sheet transfer systems"

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Takei, Yusuke, Tetsuo Kan, Eiji Iwase, Kiyoshi Matsumoto, and Isao Shimoyama. "Integration of Bridging-Structural SWNTs on Flexible PDMS Sheet by Stamping Transfer." In 2009 IEEE 22nd International Conference on Micro Electro Mechanical Systems (MEMS). IEEE, 2009. http://dx.doi.org/10.1109/memsys.2009.4805441.

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Su, Hsien-Chin, and Yen-Feng Li. "Heat transfer enhancement of a heat sink using electromagnetically-driven oscillating sheet array." In 2016 15th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm). IEEE, 2016. http://dx.doi.org/10.1109/itherm.2016.7517543.

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Hayes, Andrew M., Jamil A. Khan, Ian G. Spearing, and Aly Shaaban. "CFD Heat Transfer Investigation Into the Convective Coefficient of a Perforated Plate." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72710.

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A computational fluid dynamics (CFD) model investigating the heat transfer convective coefficient of the upstream face, the upstream face and the tube face, and the upstream face, tube face, and leeward face of a perforated sheet was developed. This model was based on the hexagonally shaped flow pattern that exists around each of the holes in a perforated sheet of a certain pitch to diameter ratio. The CFD model used in the investigation of the convective heat transfer coefficient involved a single hole in a thin hexagonally shaped sheet with appropriate boundary conditions. Through a series of models varying the inlet velocity, hole diameter, and the plate temperature and then solving for the exit temperature the convective coefficient could be obtained. After obtaining the convective coefficient, the Nusselt number was calculated. These values were then plotted against the Reynolds number and an equation for the line was obtained of the form: Nu=C1·ReC2(1)
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Ansari, Ajmal I. "Post Extrusion Cooling of Multilayer Polymer Sheet on Chilled Rolls." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72459.

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To meet the stringent emission and environmental regulations, polymer sheet with as many as six layers is required for thermoformed fuel tanks used in the automotive industry. The 10 mm to 12 mm thick sheet is made using an extrusion process. Typically each polymer layer has its own hopper, screw, barrel, nozzle and extruder. During manufacturing, polymer layers are fused together within the tool and the multilayer polymer sheet leaves the extruder in a viscoelastic state. The multilayer sheet is initially cooled by passing it over chilled rolls. The final cooling of the sheet is done via natural convection to the ambient air while the sheet is transported to the cutting station at the end of the line. The cooling of the sheet on the chilled and polished rolls has a direct influence on the quality of the sheet as well as the scrap. The conductive heat transfer is primarily responsible for the cooling while the sheet is on the chilled roll. It is desired to have the smooth sheet exterior surfaces with constant thickness of each polymer layer in the cross section. Due to the numerous materials in the cross section, and associated variability of material properties, it becomes a challenging task to meet these requirements. This paper discusses the problem of the smoothness of the exterior surfaces of the extruded sheet. The “dimpled” or “orange peel” surface finish is observed to be linked to the cooling of the sheet on the chilled rolls. Experimental data and simulation results are presented that relate the formation of dimples to the local cooling rate. The variability of thermal contact resistance between the sheet surface and the chill rolls also appear to be another variable that contributes to the dimpled surface.
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Zhao, Yao-Hua, Fei-Long Zou, Yan-Hua Diao, and Zhen-Hua Quan. "Experimental Investigation of a New Flat Plate Solar Heat Collector by Micro Heat Pipe Array." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22442.

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The performance of a new flat plate solar heat collector with perfect combination of high efficiency and low cost is investigated experimentally. The new system described in this study uses a novel micro heat pipe array as a key component for the system. One such flat plate heat collector contains over 300 micro heat pipes per 1m2 and the hydraulic diameter of the micro heat pipes is 0.4–1.0mm. A detailed heat transfer experimental study is conducted during daylight hours over several months, focusing on the collector efficiency and overall efficiency of the system as well as total heat loss factor. The results show that the collector’s maximum instantaneous efficiency is up to 88%. Compared with conventional evacuated glass tube solar water heater, the system offers the additional benefits of high pressure resistance, low weight, good reliability and durability, easy integration into buildings and absence of freezing during winter months. Besides, compared with traditional flat-plate solar water system which is mainly sheet-and-tube concept, the system also shows many advantages: higher efficiency, much cheaper, absence of tube-bonding and freezing etc. Therefore, the system proposes a unique substitute to common solar water heating systems.
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Porter, Michael A., Dennis H. Martens, Thomas Duffy, and Sean McGuffie. "Computational Fluid Dynamics Investigation of a High Temperature Waste Heat Exchanger Tube Sheet Assembly." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71143.

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Many modern Sulfur Recovery Unit (SRU) process waste heat recovery exchangers operate in high temperature environments. These exchangers are associated with the thermal reactor system where the tubesheet/tube/ferrule assemblies are exposed to gasses at temperatures approaching 3000°F. Because sulfur compounds are present in the process gas, the carbon steel tubesheet and tubes in the assembly will be deteriorated by sulfidation as the operating metal temperature rises above 600°F. Ferrule systems are used to protect the carbon steel from exposure to excessive temperatures. The temperature distribution in the steel tubesheet/tube/ferrule system is affected by process gas flow and heat transfer through the assembly. Rather than depend upon “assumed” heat transfer coefficients and fluid flow distribution, a Computational Fluid Dynamics (CFD) investigation was conducted to study the flow fields and heat transfer in the tubesheet assembly. It was found that the configuration of the ferrule installation has a large influence on the temperature distribution in the steel materials and, therefore, the possible sulfidation of the carbon steel parts.
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Smalc, Martin, Gary Shives, Gary Chen, Shrishail Guggari, Julian Norley, and R. Andy Reynolds. "Thermal Performance of Natural Graphite Heat Spreaders." In ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ipack2005-73073.

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Heat spreaders can be made from natural graphite sheet materials. These spreaders take advantage of the anisotropic thermal properties of natural graphite. Natural graphite exhibits a high thermal conductivity in the plane of the sheet combined with a much lower thermal conductivity through the thickness of the sheet. As a result, a natural graphite sheet can function as both a heat spreader and an insulator and can be used to eliminate localized hot spots in electronic components. In some cases, a natural graphite heat spreader can replace a conventional thermal management system consisting of a heat sink and cooling fan. This paper examines the properties of natural graphite heat spreaders and the application of these spreaders to thermal management problems in laptop computers. The thermal and mechanical properties of natural graphite heat spreaders are presented along with a discussion of how those properties are measured. The use of a natural graphite heat spreader to reduce the touch temperature in a laptop computer is presented. Both experimental techniques and numerical models are used to examine performance of the heat spreader in this application.
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Stöhr, Michael, Stefanie Werner, and Wolfgang Meier. "Experimental study of liquid-vapor mass transfer in non-reacting and reacting droplet chains." In ILASS2017 - 28th European Conference on Liquid Atomization and Spray Systems. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/ilass2017.2017.4767.

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The dynamics of liquid-vapor mass transfer largely determines the performance of internal and gas turbine spraycombustors. The key mechanisms however typically take place on small spatial scales of less than 100 μm which have been difficult to measure. The present work thus aims at the development and application of an experimental technique for the characterization of droplet evaporation with high spatial resolution. Single chains of monodisperse acetone droplets with diameters of 125 and 225 μm are injected into a channel with a cross-section of 60x60 mm² and quartz glass side walls for optical access. The droplet chains are surrounded by a laminar air flow with velocity and temperature of about 0.1 m/s and 300 K, respectively. The distribution of acetone vapor around the droplets is measured using planar laser-induced fluorescence (PLIF) excited by the 4th harmonic of a Nd:YAG laser at 266 nm. The measurements are performed in thin transversal sections between the droplets in order to avoid signal corruption by halation effects that occur when the laser directly hits the droplets as reported in previous studies. In addition, the spatial resolution of the PLIF setup was enhanced by using proper sheet- forming and imaging optics. The resulting in-plane resolution and out-plane-resolution (i.e. thickness of the laser sheet) are both determined to about 20 μm, which thus allows an accurate characterization of the small-scale vapor distribution near the droplets. Using a separate calibration measurement, quantitative acetone concentrations are obtained for non-reacting conditions. As a complementary technique, the droplet evaporation is measured using shadowgraphy droplet sizing. Both non-reacting and reacting droplet chains are studied. The results for the non-reacting cases show that the droplet chains are surrounded by a column of nearly-saturated acetone vapor with a concentration maximum at the centerline. For increasing radial distances, the vapor concentration decays quickly with a half width of 0.5 mm and reaches almost zero for r>1 mm. It is further seen that the width of the vapor column increases with streamwise distance. For the experiment with a reacting droplet chain, which is continuously ignited by a heating wire at the channel inlet, a cylindrical reaction zone around the chain with a radius of about 1.5 mm is observed. The shadowgraphy measurements show that the rate of droplet evaporation is significantly enhanced for the reacting conditions. This is attributed to the high rate of heat transfer from the flame to the droplets and the resulting enhanced acetone mass transfer to the sink at the reaction zone.DOI: http://dx.doi.org/10.4995/ILASS2017.2017.4767
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Chiou, Richard Y., Michael G. Mauk, Dharma T. Varapula, Senyu Wang, Carlos Ruiz, and Tzu-Liang (Bill) Tseng. "Microfluidic Systems for Studying Chemical Reactions, Mixing, and Heat Transfer." In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-72307.

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Microsystems comprising microfluidic networks and miniaturized actuators, transducers, and sensors provide a convenient, revealing, and low-cost means for studying chemical reactions, separation processes such as filtration and extraction, phase changes, mixing, heat and mass transfer, and fluid flow phenomena. For instance, palm-sized plastic cartridges or cassettes (‘chips’) with channels, chambers, manifolds and other components for flow control and fluid actuation can be instrumented with embedded thermocouples and pressure sensors, and operated with small Peltier coolers/heaters and programmable syringe pumps or microrotary pumps. With proper design, the on-chip microfluidic processes can also be imaged with CCD cameras (especially using fluorescent dyes and particles), and infrared thermal cameras for temperature profiling. Such image (including video) capture and processing affords much more data compared to point sensors such as thermocouples and pressure transducers, and can be directly compared with finite element modeling. These systems are effective vehicles for project-based learning in fluid mechanics, heat transfer, chemical reaction engineering, separation processes and other unit operations, process control, and various biotechnical operations such as enzymatic digestion, nucleic acid amplification, and sample fractionation. The chips are made as bonded laminates from patterned acrylic, polycarbonate, thin metal sheet, and many other material types. Students can quickly design (using CAD software such as SolidWorks™), simulate (using FEM programs such as Comsol) microfluidic platforms, that can be rapid prototyped with laser machining, 3D printing, CNC machining, soft lithography, engraving and printed circuit board fabrication methods with a turn-around time of 1 day. The chip is instrumented using LabView™ or an Arduino™ microcontroller for data acquisition and process control. These benchtop or desktop systems make only modest demands on the resources of educational institutions, due to their low cost and safety, and minimal waste generation and reagent consumption. Also, their multidisciplinary nature affords an excellent opportunity for students to integrate their knowledge of CAD, simulation, prototyping, instrumentation and microcontrollers, statistical data analysis, and image processing and analysis. Further, these experiments give students a high level of hands on interaction and visualization of important unit operation processes. We discuss in detail some representative systems for heat exchangers, mixers, chemical reactors, and crystal growth, and their use as educational, project-based modules in the undergraduate engineering curriculum.
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Yang, Eui-Hyeok, and Dean V. Wiberg. "A Wafer Transfer Technology for MEMS Adaptive Optics." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/mems-23807.

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Abstract Adaptive optics systems require the combination of several advanced technologies such as precision optics, wavefront sensors, deformable mirrors and lasers with highspeed control systems. The deformable mirror with a continuous membrane is a key component of these systems. This paper describes a new technique for transferring an entire wafer-level silicon membrane from one substrate to another. This technology is developed for the fabrication of a compact deformable mirror with a continuous face sheet. A 1 μm thick silicon membrane, 100 mm in diameter, has been successfully transferred without using adhesives or polymers (i.e. wax, epoxy, or photoresist). Smaller or larger diameter membranes can also be transferred using this technique. The fabricated actuator membrane with an electrode gap of 1.5 μm shows a vertical deflection of 0.37 μm at 55 V. The proposed technique has the following benefits over those previously reported: 1) No post-assembly release process (e.g. using HF) is required, and no wax, photoresist, or epoxy is used for the transfer purpose 2) The bonded interface is completely isolated from any acid, etchant, or solvent, which ensures a clean and flat membrane surface. 3) It offers the capability of transferring wafer-level membranes over deformable actuators.
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Reports on the topic "Sheet transfer systems"

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Pforr, Tobias, Fabian Pape, and Steffen Murau. After the Allocation: What Role for the Special Drawing Rights System? Institute for New Economic Thinking Working Paper Series, March 2022. http://dx.doi.org/10.36687/inetwp180.

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In August 2021, the IMF made a new SDR allocation to help ease pandemic-induced financial strains in the Global South. This paper assesses the potential of the SDR system to address debtrelated problems in global finance. We analyze the SDR system as a web of interlocking balance sheets whose members can use SDR holdings—the system’s tradable assets—for conversion into usable currency as a perpetual low-interest loan or to make payments to each other. Using original IMF data, we study how the system has been practically used since 1990. Though widely perceived as a solution in search of a problem in the post-Bretton Woods era, we find that the SDR system provides three mechanisms through which IMF members borrow and lend usable currency to each other, with different strings attached: first, transactions by agreement; second, the IMF’s core lending facilities for which the SDR system offers additional resources; and third, IMF-sponsored Trusts which seek to harness the SDR system for development purposes and are the basis for the current idea of ‘voluntary channeling’. Overall, given the SDR system’s idiosyncratic accounting rules, the new allocation can improve the liquidity position of a country and offer some limited avenues for sovereign debt restructuring but comes with new interest and exchange rate risks. Voluntary channeling cannot happen without a wealth transfer, neither the SDR allocation nor the use of Trusts can overcome this problem. Still, Trusts can be a useful instrument to help with debt forgiveness and to ensure that borrowed funds are used for their intended purpose.
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Author, Not Given. NREL Improves System Efficiency and Increases Energy Transfer with Wind2H2 Project, Enabling Reduced Cost Electrolysis Production (Fact Sheet). Office of Scientific and Technical Information (OSTI), November 2010. http://dx.doi.org/10.2172/993651.

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Halide and Oxy-Halide Eutectic Systems for High-Performance, High-Temperature Heat Transfer Fluids (Fact Sheet). Office of Scientific and Technical Information (OSTI), December 2012. http://dx.doi.org/10.2172/1059153.

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