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Thomas B. Pepinsky,Erik Martinez Kuhonta,Dan Slater,Tuong Vu,Barbara Geddes,Duncan McCargo,Richard Robison 동아시아연구원 2010 Journal of East Asian Studies Vol.10 No.2
Comparative politics has witnessed periodic debates between proponents of contextually sensitive area studies research and others who view such work as unscientific,noncumulative, or of limited relevance for advancing broader social science knowledge. In Southeast Asia in Political Science: Theory, Region, and Qualitative Analysis, edited by Erik Martinez Kuhonta, Dan Slater, and Tuong Vu, a group of bright, young Southeast Asianists argue that contextually sensitive research in Southeast Asia using qualitative research methods has made fundamental and lasting contributions to comparative politics. They challenge other Southeast Asianists to assert proudly the contributions that their work has made and urge the rest of the comparative politics discipline to take these contributions seriously. This symposium includes four short critical reviews of Southeast Asia in Political Science by political scientists representing diverse scholarly traditions. The reviews address both the methodological and the theoretical orientations of the book and are followed by a response from the editors.
Tuong Quan Vo,Hyoung Seok Kim,Hyo Seung Cho,Doan Nuoi Dang,Byung Ryong Lee 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Underwater robot is a new trend of researched field which is developing quickly in recent years. Some of thefirst researches on this field are ROV (Remotely Operated Vehicle), AUV (Autonomous Underwater Vehicle). Lately, a new type of underwater robot which is biomechanical robot is mostly concerned. One of the typical types of this one isfish robot. In this paper, firstly a dynamic model of 3-joint (4 links) Carangiform fish robot type is presented. Secondly, the surveys about the influences of input torque functions’ parameters such as: phase angle, frequency and amplitude to the velocity of fish robot by simulation method are introduced. Lastly, fish robot’s maximum velocity is optimized by using the combination of Genetic Algorithm (GA) and Hill Climbing Algorithm (HCA). GA is used to create the initial optimal parameters set for the input functions of the system. Then, this set will be optimized one more time by using HCA to be sure that the final parameters set are the “near” global optimization result for the system. Finally, somesimulation results are presented to prove the effectiveness of the proposed algorithm.
Parameter Optimization of Fish Robot’s Smooth Gaiting Using Hill Climbing – Genetic Algorithm
Tuong Quan Vo,Hyoung Seok Kim,Byung Ryong Lee 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
Recently, the underwater robotics research field has been developed quickly in some kinds of robot such as: ROV (Remotely Operated Vehicle), AUV (Autonomous Underwater Vehicle) or UUV (Unmanned Underwater Vehicle) and etc. These types of underwater robot mostly use propeller or thruster to generate the propulsion force in order to create the movement for robot. However, the research about one kind of autonomous robot called fish robot still remain at low level of technology and there are many thing need to be done in this robot type. Fish robot usually uses its body’ oscillation or its fins’oscillation to create the movement for it self in underwater environment. In this paper, a model of 3-joint (4 links) fish robot type is presented. This fish robot’ smooth gait or smooth motion is optimized by using the combination of Hill Climbing Algorithm (HCA) and Genetic Algorithm (GA). HCA is used to generate the good initial population for GA and then GA is used to find the optimal parameters set that make fish robot has a smooth gait or smooth motion. Finally, some simulation results are presented to prove this application.
Chemical Fixation of Polyelectrolyte Multilayers on Polymer Substrates
Tuong, Son Duy,Lee, Hee-Kyung,Kim, Hong-Doo The Polymer Society of Korea 2008 Macromolecular Research Vol.16 No.4
A simple chemical fixation method for the fabrication of layer-by-layer (LbL) polyelectrolyte multilayer (PEM) has been developed to create a large area, highly uniform film for various applications. PEM of weak poly-electrolytes, i.e., polyallylamine hydrogen chloride (PAH) and poly(acrylic acid)(PAA), was assembled on polymer substrates such as poly(methyl methacrylate)(PMMA) and polycarbonate (PC). In the case of a weak polyelectrolyte, the fabricated thin film thickness of the polyelectrolyte multilayers was strongly dependent on the pH of the processing solution, which enabled the film thickness or optical properties to be controlled. On the other hand, the environmental stability for device application was poor. In this study, we utilized the chemical fixation method using glutaraldehyde (GA)-amine reaction in order to stabilize the polyelectrolyte multilayers. By simple treatment of GA on the PEM film, the inherent morphology was fixed and the adhesion and mechanical strength were improved. Both surface tension and FT-IR measurements supported the chemical cross-linking reaction. The surface property of the polyelectrolyte films was altered and converted from hydrophilic to hydrophobic by chemical modification. The possible application to antireflection coating on PMMA and PC was demonstrated.
Design and development of the sorting system based on robot
Tuong Phuoc Tho,Nguyen Truong Thinh 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10
Sorting is one of the important tasks in production line. Using Robot to increase productivity in automatic sorting system interests a large of researchers. In this paper, we recommend a sorting system based on Robot that can identify the position and properties of objects. The sorting system uses the camera placed on the top of the mechanical conveyor belt. With the images captured by the camera, the software will perform the algorithms to identify the location and characteristics of the object (ei. tomatoes), the data of objects is used by pick and place process that synchronize with controller of robot. The sorting process comprising the steps of: detecting the object, determine the object properties (ei. color, size, shape, ...), locate the object, calculate the actual gripping position, the results of the sorting process will be stored and converted into signals to communicate with the control system of robot to perform the sorting tasks. The algorithms will be experimented on Delta robot 3 D.O.F, results will be analyzed and evaluated to calculate the workspace of Robots, so that the productivity and energy efficiency is appropriate.
Southeast Asia’s New Nationalism: Causes and Significance
Tuong Vu 서강대학교 동아연구소 2013 TRaNS(Trans –Regional and –National Studies of Sou Vol.1 No.2
This paper explains the post-Cold War surge of nationalism in Southeast Asia and discusses its significance for regional peace and cooperation. As argued, the growth of nationalism as a form of mass politics has different causes in each Southeast Asian context where it occurs, but at the regional level the phenomenon can be explained by three factors: the failure of earlier nationalist movements to fully deliver their promises; a shift in the international and regional order (the end of the Cold War and the rise of China); and a change in domestic order (political liberalisation and democratisation) that was also occurring across many countries in the region. While the main mission of the new nationalism is the defence of national territory, the movements have the unintended impact of bringing together national communities once divided by Cold War ideologies. The phenomenon also poses some serious risks to regional peace and cooperation.
A Study on Turning Motion Control of a 3-Joint Fish Robot Using Sliding Mode Based Controllers
Tuong Quan Vo,Hyoung Seok Kim,Byung Ryong Lee 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
The fish robot is a new type of biomimetic underwater robot. Because it moves silently, saves energy, and is flexible in its operation in comparison to other kinds of underwater robot such as ROVs (Remotely Operated Vehicles) or AUVs (Autonomous Underwater Vechicles) or UUV (Unmanned Underwater Vehicle) and etc, the fish robot can be applied to many underwater research projects in recent years. In this paper, a model of 3-joint (4 links) Carangiform fish robot type is presented at initial. Then, the dynamic model of fish robot is developed which is based on Lagrange’s method. This dynamic model also includes the heading motion of fish robot which is not covered much in other researches. Then, the Sliding Mode Controller (SMC) and the Fuzzy Sliding Mode Controller (FSMC) are proposed to control the straight motion and turning motion of fish robot. Finally, some numerical simulations are conducted to show the feasibility and the merit of the proposed controllers.