Summary of Engineering doctoral dissertation

Research objectives: Understand and implement the experimental process to determine the sound transmission loss of through composite sandwich plates used in ships in Vietnam; Application of research results on the reduction of engine room composite shell ship was built at the Institute of Ship Research and Development, Nha Trang University

30p tunelove 11-06-2021 15 3   Download

Thesis objectives and tasks: Develop a strategy for the DSM program to operate the PVG and WG exploitation system in EPS Vietnam; develop the concept maps to meet the requirements of the DSM program.

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Objective: This dissertation explores the influence of pectoral fin structures at different swimming modes on a robotic fish's locomotion behavior; Some objectives are addressed to achieve the mentioned aim as follows: Firstly, new designs based on bio-inspired pectoral fin types are constructed. Secondly, to describe fin deformation and body part movement, novel dynamically mathematical models are developed.

28p extraenglish 26-05-2021 26 5   Download

Research purposes: Developing problem-solving skills for students in teaching about Thermal Science of General Physics at Military Technical Officers; Research Subjects: Students' problem-solving skills in studying Physics. Teaching process of General Physics.

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The purpose of the dissertation is to test and use different accuracy assessment methods to evaluate the improvement of grid DEMs accuracy when increasing resolution by popular resampling methods. Currently and building the algorithm and programs to increase the spatial resolution and accuracy of the grid DEM using Hopfield neural networks. Objects of the study are grid DEMs which are built from different methods such as: LiDar DEM, contour and field measurements. The scope of the study includes the spatial resolution and accuracy of the above grid DEMs.

25p dolphintaletale 23-04-2021 32 6   Download

Thesis objectives and tasks: Establishing a mathematical model, putting forward an algorithm applied for seeking the solar system's irradiance equalization configuration under the heterogeneous lighting conditions; establishing a mathematical model, putting forward an algorithm applied for choosing an optimal circuit switching method, from the initial connection configuration to the irradiance equalization configuration.

26p capheviahe27 23-02-2021 23 4   Download

Thesis objectives and tasks: Develop a strategy for the DSM program to operate the PVG and WG exploitation system in EPS Vietnam; develop the concept maps to meet the requirements of the DSM program.

27p capheviahe27 23-02-2021 14 4   Download

The objectives of the thesis are to study on a method to analyze a large-scale system into a number of relatively independent subsystems (interconnected subsystems). Then, the dissertation will focus on designing a decentralized control method for the large-scale system which has been decomposed into the interconnected subsystems.

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Propose the global – local mean square error criterion (GLOMSEC) for Gaussian equivalent linearization method (GEL) for randomly excited MDOF nonlinear system subjected to white noise or color noise excitation. The mean square of response solution will be concentrated to evaluate the accuracy of the proposed criterion by comparison with exact solution or other accepted solutions.

28p capheviahe26 25-01-2021 11 3   Download

This dissertation focuses on establishing the process of manufacturing bimetallic Fe / Cu internal electrolysis nanomaterial, thereby studying some characteristics correlation between corrosive line and TNT decomposition kinetics and time. Setting and optimizing the internal electrolysis process by bimetal Fe / Cu nanomaterials combined with biological method A2O-MBBR (moving bed Biological reactor) to treat TNT wastewater at laboratory scale and Pilot scale at the scene.

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To establish the behavior model of the MIs and to employ this model to determine the seismic behavior of infilled frames; to study how to control the failure mechanisms of reinforced concrete (RC) frames under seismic actions, considering the interaction between the frame and the MIs.

27p kequaidan7 01-09-2020 30 2   Download

The objective of the thesis is to propose some new control methods to compensate for the negative effects of pattern uncertainty, external noise and wheel slip. Analyze and build dynamic and kinetic models of mobile robots when model uncertainties exist. Demonstrating the correctness and effectiveness of new control methods by the Lyapunov stability standard and Barbalat lemma. Advanced domestic and foreign control methods for mobile robots in the presence of uncertainty models, external noise, and wheel slip. Then propose new control methods.

26p xacxuoc4321 09-07-2019 38 3   Download

The thesis aims to propose some control techniques for mobile target Robot-camera. After that, I studied some of the torque control techniques of joints for the Robot-camera system sticking to the mobile target and the Robot-camera system, paying attention to the motivating motor sticking to the mobile target. Finally, the author also proposed some control algorithms for Robotic-camera arm system with irregular model, external noise and preventing system degradation, using nonlinear sliding controller (TSMC) in combination with Artificial neural networks to estimate uncertain numbers.

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The objective of research is to build CNST using TVTS to treat pig waste water after microbiological treatment, to minimize environmental pollution. Technology is feasible when applied in practice.

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The research objective of the dissertation completes the technological process of modulating super oxidation solution, thereby manufacturing equipment to suit Vietnamese conditions and applying this solution to disinfect hospital wastewater.

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The dissertation aims to study to reduce torsional vibration for the shaft The machine is equipped with DVA (dynamic vibration absorber) oscillator, mass disk type - spring - viscous. To know more details of the content please refer to the thesis summary.

32p xacxuoc4321 11-07-2019 27 3   Download

The thesis aims to propose the Heuristic method algorithm applied to the problem of power grid restructuring with the objective of reducing power loss in case of having / without distributed power source connecting to the distribution grid. Study the effect of distributed power source when connecting to the distribution grid, affecting the power grid restructuring problem.

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The research objective of the thesis is to select microorganisms capable of producing laccase, laccaselike from Ba Vi National Forest area, in herbicide / dioxin contaminated soil at Bien Hoa airport. Assessing the ability of decomposing herbicides containing dioxin and reactive dyes by laccase, laccase-like and VSV strains were selected to guide the application in defense activities.

27p xacxuoc4321 11-07-2019 43 5   Download