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Tony Utomo,Zhenhua Jin,MSq Rahman,정효민,정한식 대한기계학회 2008 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.22 No.9
An investigation of the gas-liquid ejector has been carried out to study the influence of operating conditions and ejector geometries on the hydrodynamics and mass transfer characteristics of the ejector by using three-dimensional CFD modeling. The CFD results were validated with experimental data. Flow field analysis and prediction of ejector performance were also conducted. Variations of the operating conditions were made by changing the gas-liquid flow rates ratio in the range of 0.2 to 1.2. The length to diameter ratio of mixing tube (LM/DM) was also varied from 4 to 10. CFD studies show that at LM/DM=5.5, the volumetric mass transfer coefficient increases with respect to gas flow rate. Meanwhile, at LM/DM=4, the plot of volumetric mass transfer coefficient to gas-liquid flow rate ratio reaches the maximum at gas-liquid flow rate ratio of 0.6. This study also shows that volumetric mass transfer coefficient decreases with the increase of mixing tube length.
Assembly and Structure of Primitive Membraneless DNA Liquid Crystal Coacervates
Tony Z. Jia,Tommaso P. Fraccia 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.2
Compartmentalization supported the eventual assembly and evolution of protocells on early Earth. Recent trends have resulted in investigation of membraneless droplets as primitive compartments. Membraneless droplets, such as DNA peptide coacervates, could have been present on early Earth due to the potential prevalence of amino acid and/or nucleotide-based polymers. Here, we introduce a peptide/DNA coacervate system where the structural complexity can be increased through incorporation of DNA liquid crystals (LC). LC-coacervates form through peptide-DNA binding (coacervation) and DNA stacking (LC formation), and can transition through all known LC mesophases through variations in salinity, heat, and hydration. We predict that the increased structural complexity of LC phases applied to coacervates could help to increase the functional complexity of primitive compartment systems, perhaps even extending applications to modern engineering fields.
Sympathetic Magic in A.I. and the Humanities
( Tony Veale ) 중앙대학교 인문콘텐츠연구소 2018 인공지능인문학연구 Vol.2 No.-
Much of what we consider humorous is a perishable commodity. As the shifting plates of the Zeitgeist create new opportunities for humour in one domain of human experience, other opportunities dry up or cease to be topical. To deploy automated humour generation in a dynamic environment, we shall need to build flexible frameworks that allow designers to respond quickly to changing norms and topical new targets for wit. We consider Twitter to be such an environment, and explore the rapid development of new humour generators by transferring a reusable sense of humour from one domain-specific generator to another. We articulate what it means for a computer program to have a sense of humour in the first place, before we distinguish between those aspects that are generic and reusable from those that are bespoke and tied to a specific goal.
Monetary Policy Rules for Small and Open Developing Economies: A Counterfactual Policy Analysis
Tony Cavoli,Ramkishen S.Rajan 중앙대학교 경제연구소 2006 Journal of Economic Development Vol.31 No.1
This paper uses a model calibrated to suit a small open Asian economy to present a series of counterfactual policy experiments aimed at comparing conventional optimal inflation targeting (IT) under commitment and discretion and variations of simple fixed monetary policy rules (MPRs). Two significant points of departure between the model presented here and previous ones for industrial countries are the incorporation of the real exchange rate and consideration of possible contractionary depreciation/devaluation. This represents a realistic scenario for some Asian economies after the crisis. In assessing the impact of different policy types it is essential to find parameters for model calibration that suitably represent the small and open Asian economies that have recently implemented inflation targeting arrangements. We have used estimates from Thailand over a recent period (1993-2003) to assist in selecting these parameters.
Control validation of Peugeot 3∞8 HYbrid4 Vehicle Using a Reduced-scale Power HIL Simulation
Tony Letrouve,Walter Lhomme,Alain, Bouscayrol,Nicolas Dollinger 대한전기학회 2013 Journal of Electrical Engineering & Technology Vol.8 No.5
The new engineering challenges lead to a control of a vehicle more and more complex. To tackle this issue, Hardware-In-the-Loop (HIL) simulation is used in the development of real-time embedded systems. In this paper, the control of a double parallel hybrid vehicle is validated using a reduced power HIL simulation. A graphical description is used in order to organize the emulation and control. Some experimental results of a versatile testbed are given for the Peugeot 3∞8 HYbrid4.