VNU-UET Repository: No conditions. Results ordered -Date Deposited. 2024-03-29T05:21:24ZEPrintshttp://eprints.uet.vnu.edu.vn/images/sitelogo.pnghttps://eprints.uet.vnu.edu.vn/eprints/2020-12-08T09:28:32Z2020-12-08T09:28:32Zhttp://eprints.uet.vnu.edu.vn/eprints/id/eprint/4134This item is in the repository with the URL: http://eprints.uet.vnu.edu.vn/eprints/id/eprint/41342020-12-08T09:28:32ZA new structure of Tesla coupled nozzle in synthetic jet micro-pumpSynthetic jet pump is a potential technique to improve the pumping performance by introducing a smart structure which can enhance counter-rotating vortexes. Aligning with this approach, a new structure of valveless micro-pump is developed in this work. The mechanism of the present micro-pump is based on the combination of the nozzle and a tesla element to rectify the synthetic jet. The new structure of “ace of spades” nozzle, named Tesla coupled nozzle, creates series of vortexes at the orifice of the pump chamber that allows to attenuate the reversed flows while fluid is drawn through the pump. The present
micro-pump is simple but robust and can perform at rather low voltages.Canh-Dung TranCanh-Dung.Tran@usq.edu.auHong Phuc Phamphucph-fme@mail.hut.edu.vnTuan-Khoa Nguyenkhoa.nguyentuan@griffithuni.edu.auHoang-Phuong Phanphuong.phanhoang@griffithuni.edu.auToan Dinhtoan.dinh@griffithuni.edu.auThanh Viet Nguyenthanh.nguyenviet@griffithuni.edu.auThanh Tung Buitungbt@vnu.edu.vnDuc Trinh Chutrinhcd@vnu.edu.vnNam-Trung Nguyennam-trung.nguyenEmailgriffith.edu.auDzung Viet Daod.dao@griffith.edu.auThanh Van Dauv.dau@griffith.edu.au2013-12-31T10:11:25Z2013-12-31T10:11:25Zhttp://eprints.uet.vnu.edu.vn/eprints/id/eprint/209This item is in the repository with the URL: http://eprints.uet.vnu.edu.vn/eprints/id/eprint/2092013-12-31T10:11:25ZMicro/nano-Mechanical Sensors and Actuators based on SOI-MEMS TechnologyMEMS (micro-electro-mechanical systems) technology has undergone almost 40 years of development, with significant technology advancement and successful commercialization of single-functional MEMS devices, such as pressure sensors, accelerometers, gyroscopes, microphones, micro-mirrors, etc. In this context of MEMS technology, this paper introduces our studies and developments of novel micro/nano-mechanical sensors and actuators based on silicon- on-insulator (SOI)-MEMS technology, as well as fundamental research on piezoresistive effects in single-crystal silicon nanowires (SiNWs). In the first area, novel mechanical sensors, such as 6-DOF micro-force moment sensors, multi-axis inertial sensors and micro-electrostatic actuators developed with SOI-MEMS technology will be presented. In the second area, we have combined atomic-level simulation and experimental evaluation methods to explain the giant piezoresistive effect in single crystalline SiNWs along different crystallographic orientations. This discovery is significant for developing more highly sensitive and miniaturized mechanical sensors in the near future.Dzung Viet DaoKoichi NakamuraBui Thanh Tungtungbt@vnu.edu.vnSusumu Sugiyama2013-12-25T08:18:01Z2013-12-25T08:18:01Zhttp://eprints.uet.vnu.edu.vn/eprints/id/eprint/212This item is in the repository with the URL: http://eprints.uet.vnu.edu.vn/eprints/id/eprint/2122013-12-25T08:18:01ZIntegrated CNTs Thin Film for MEMS Mechanical SensorsVan Thanh DauTakeo YamadaDzung Viet DaoBui Thanh Tungtungbt@vnu.edu.vnKenji HataSusumu Sugiyama2013-12-12T08:57:16Z2013-12-12T09:09:43Zhttp://eprints.uet.vnu.edu.vn/eprints/id/eprint/194This item is in the repository with the URL: http://eprints.uet.vnu.edu.vn/eprints/id/eprint/1942013-12-12T08:57:16ZInvestigation of Strain Sensing Effect in Modified Single-Defect Photonic Crystal NanocavityThis paper reports the theoretical and experimental investigations on the strain sensing effect of a two dimensions (2D) photonic crystal (PhC) nanocavity resonator. By using the finite element method (FEM) and finite difference time domain (FDTD) simulations, the strain sensitivity of a high quality factor PhC nanocavity was calculated. Linear relationships between the applied strain and the shift in the resonant wavelength of the cavity were obtained. A single-defect silicon (Si) PhC cavity was fabricated, and measurements of the strain sensitivity were performed. Good agreement between the experimental and simulation results was observed.Bui Thanh Tungtungbt@vnu.edu.vnDzung Viet DaoTaro IkedaYoshiaki KanamoriKazuhiro HaneSusumu Sugiyamasugiyama@se.ritsumei.ac.jp