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Rangoon, Myanmar

Yangon Technological University , located in Gyogone, Yangon, is the premier engineering university of Myanmar. Established as Department of Engineering under Rangoon University in 1924, and popular known by its former name RIT , YTU is the country's oldest and largest engineering university, and one of the most selective universities in Burma. The university offers bachelor's, master's and doctorate degree programs in engineering disciplines to nearly 8000 students.YTU is a member of ASEAN University Network, Southeast Asia Engineering Education Development Network , and Greater Mekong Sub-region Academic and Research Network . Wikipedia.

Aung M.T.S.,Kyushu University | Aung M.T.S.,Yangon Technological University | Kikuuwe R.,Kyushu University
2015 10th Asian Control Conference: Emerging Control Techniques for a Sustainable World, ASCC 2015 | Year: 2015

This paper proposes a position control scheme that is suitable for the use as the internal position servo of an admittance controller. The proposed controller is characterized by four points: (a) PDD2 (proportional, derivative, and second derivative) feedback, (b) dither-based friction compensation, (c) sliding-mode-based noise filtering, and (d) variable D2 gain. The PDD2 structure and the friction compensation are theoretically expected to contribute the stability of the admittance control by expanding the bandwidth of the internal position control system. The sliding-mode-based filter is for smoothing the acceleration signals without producing a large phase lag. The variable D2 gain is for reducing the effect of acceleration-measurement noise at low velocity. The proposed controller was tested with a 1-DOF device in contact with environments. © 2015 IEEE.

Aye M.M.M.,Yangon Technological University
World Academy of Science, Engineering and Technology | Year: 2011

Any rotation of a 3-dimensional object can be performed by three consecutive rotations over Euler angles. Intrinsic rotations produce the same result as extrinsic rotations in transformation. Euler rotations are the movement obtained by changing one of the Euler angles while leaving the other two constant. These Euler rotations are applied in a simple two-axis gimbals set mounted on an automotives. The values of Euler angles are [π/4, π/4, π/4] radians inside the angles ranges for a given coordinate system and these actual orientations can be directly measured from these gimbals set of moving automotives but it can occur the gimbals lock in application at [π/2.24, 0, 0] radians. In order to avoid gimbals lock, the values of quaternion must be [π/4.8, π/8.2, 0, π/4.8] radians. The four-gimbals set can eliminate gimbals lock.

Haine A.T.,Kumamoto University | Haine A.T.,Yangon Technological University | Niidome T.,Kumamoto University
Journal of Photopolymer Science and Technology | Year: 2015

Gold nanoparticles have been becoming attractive metals in biomedical applications. The unique optical, chemical, and biological properties of gold nanoparticles have supported them for clinical interest in several applications including drug and gene delivery. Gold nanorods have strong absorption bands in the near-infrared region, in which light penetrates deeply into tissues. Hence, gold nanorods are expected to act not only as on-demand thermal converters for photothermal therapy but also as controllers of a drug-release system responding to irradiation by near-infrared light. These attributes can be promoted to provide an effective and selective platform for a targeted intracellular release of some substance. Here we review recent advances in the use of gold nanorods in drug and gene delivery systems. © 2015 SPST.

Aung M.T.S.,Kyushu University | Aung M.T.S.,Yangon Technological University | Kikuuwe R.,Kyushu University
Proceedings of the American Control Conference | Year: 2015

High-gain proportional-integral-derivative (PID) position control can achieve stiff position control but it involves the risk of overshoots in some cases such as discontinuous position commands and disturbances. This paper presents a new position controller that achieves accurate trajectory tracking and overdamped resuming motion from large positional errors and disturbances. The proposed controller is a combination of PDD2 (proportional, derivative, and second derivative) controller with nonlinear D2 term, which we call (N-PDD2), and the output of a friction compensator (FC). The nonlinear D2 term allows the use of high gain PDD2 and thus, advantageous in dealing with disturbances. Accurate trajectory-tracking is achieved due to friction compensation. The validity of the proposed controller was demonstrated through experiments in realizing overdamped motion and accurate tracking simultaneously and achieving improvement in robustness to disturbances in a robotic manipulator. © 2015 American Automatic Control Council.

Niidome Y.,Kagoshima University | Haine A.T.,Kumamoto University | Haine A.T.,Yangon Technological University | Niidome T.,Kumamoto University
Chemistry Letters | Year: 2016

Among the several types of nanoparticles in existence, anisotropic gold-based nanoparticles demonstrate special advantages because of their unique properties. Gold nanoparticles can be prepared and modified with a wide range of functional materials including polymers, surfactants, ligands, dendrimers, drugs, DNA, RNA, proteins, peptides, and oligonucleotides. Hence, they are a promising vehicle for bioimaging, drug delivery, and other therapies. This review mainly addresses the properties, preparation, and applications of anisotropic gold nanoparticles in biomedical applications and targeted drug delivery. © 2016 The Chemical Society of Japan.

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