Doctoral Thesis in Physics

This study investigated the in vitro effects of ZnO NP and chemical UV filters commonly used sunscreens on the function of immortalised and primary skin cells. ZnO particulates (30 nm, 80 nm and 200 nm) were compared to the chemical UV filters: butylmethoxydibenzoylmethane (BMDBM) ethylhexylmethoxycinnamate (EHMC), ethylhexylsalicylate (EHS), homomenthylsalicylate (HMS) and 4-methylbenzylidenecamphor (MBC). Human epidermal keratinocytes (NHEK), epidermal melanocytes (NHEM), dermal fibroblasts (NHDF) and the immortalised keratinocyte HaCaT cell line were used in this study.

324p runthenight05 01-03-2023 8 2   Download

The document will be structured as follows: In Chapter 2 outline the methodology, discussing the computational techniques used to evaluate the interaction energies and evaluating the construction of the TT and D3(BJ) correction terms. Chapter 3 attempts to establish a foundational understanding of how these methods model vdW interactions by evaluating the performance of the corrected and uncorrected HF and DFT methods in comparison with CCSD(T) energies for a selection of inert gas dimers, and simple molecule-molecule interactions.

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The objective of this thesis is to examine the practice of infrastructure procurement in Australian State Governments in order to analyse how strategic the procurement function is. In doing so this thesis examines how Australian State Government agencies procure infrastructure projects and the extent to which they view the procurement process as an opportunity to deliver more than just a physical facility. This research contributes to both the body of knowledge focused on maximising the impact of public sector expenditure and the practice of infrastructure procurement.

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This thesis contributes to a better understanding of the relationship between residential energy efficiency and health. The thesis argues that residential energy efficiency improvements are complex interventions in complex socio‐technical systems.

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The thesis "Physical Activity, Acceptance and Mental Health in People with Alopecia Areata: The Use of a Mixed-methods Approach to Inform an Evidence-based Intervention" aimed to (1) investigate the relationship between PA, health-related QoL and mental health in people with AA; (2) identify factors that influence PA behaviours; and (3) implement an evidence-based intervention based on the outcomes of aims (1) and (2) designed to improve the mental health status in people with AA.

314p runordie3 06-07-2022 9 2   Download

The purpose of this thesis is to study and synthesize BiMO materials (M = V,Ti,Sn) by microwaveassisted chemical method, hydrothermal method, sol-gel method and evaluate their physical properties. The synthesized materials (Bi2Sn2O7 and Bi2Ti2O7) were investigated the photocatalytic activity in the decomposition of RhotaminB (RhB) under visible light.

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The thesis proposes a class for the new economic 3-3-1 model, called a simple 3-3-1 model, in order to address the mentioned problems. The simple 3-3-1 model considers the simplest lepton sector and the scalar sector.

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Research objectives of the thesis: The thesis was conducted to research and develop a new type of electrode: glass charcoal electrodes modified by flower platinum nano (PtNFs/GC) and to evaluate the properties of fabricated electrodes: electrode structure, morphology, physical and chemical properties.

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Aim of the thesis: Development of a new method for determining concentration of the radionuclides in enviromental samples by mean of gamma spectroscopy. Establishing a data set of the soil-plant transfer factor (TF) of radionuclides 238U, 232Th and 40K for some vegetables in Truong Sa island and that of 238U, 232Th, 40K and 137Cs for tea tree from Luong My farm, Hoa Binh province, Vietnam and evaluate the influence of natural radionuclide concentration to the soil-plant transfer process of artificial radionuclide 137Cs.

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The studied object is the Kerr nonlinear optical systems and optical resonator tworing systems linear coupling with the presence of linear gain and nonlinear loss.

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Research purposed: The thesis focuses on proposing and applying the teaching organizing methods of topic Kinematics and Dynamics in 10th grade Physics through experimental activities to develop student‟s creative capacity so as to improve teaching qualities.

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Study aims: Proposing principles and measures to formulate and develop teaching skills with experiments of physics pedagogical students in pedagogical training schools in teaching module "Physics experiment in high school”.

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Research purpose: to build an analytical model describing the dependence of the optical properties (absorption, dispersion, group velocity and group delay) of the three configuration energy level system Λ, Ξ and V according to the following parameters: control parameters (intensity, frequency, polarization and relative phase) of the laser fields.

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Purpose: Proposing an optical switches model that integrates both optical-magnetic switches and all optical switching in a degenerated two-levels atomic medium; Proposing a model to control the ultraslow group velocity of light soliton and dark soliton in a degenerated two-levels atomic medium.

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Research purpose: to build an analytical model representing the cross Kerr nonlinear coefficient of a four-energy quantum system in the inverse Y configuration in the presence of the Doppler effect. Apply the analytical results to the case of 87Rb at room temperature. Studying the ability to control and enhance the cross Kerr nonlinearity according to the parameters of the associated laser field and the temperature of the environment.

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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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Purposes: Organize the theme-based teaching process for the "Electricity" part of Physics Grade 11 in high schools in contribution to fostering students' problem-solving competence.

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Upgradation and enhancement of the urban seismic risk assessment tool in Vietnam based on the inherent results of the previous studies and the cutting-edge methodology of seismic risk assessment in the world; development of a realistic portrayal of seismic risk for the Hanoi urban area based on the state-of-the-art methodologies for seismic risk assessment and updated dataset.

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Investigate the scalar section, the gauge section, and currents in the 3 − 2 − 3 − 1 model and the minimal 3 − 4 − 1 model with right-handed neutrino. Identifying particles and interactions of SM as well as predicting new particles and interactions.

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Objectives of this dissertation: Develop the optimal preparation procedure of modified biochar and activated carbon derived from an agricultural byproduct, such as corncob wastes; Investigate the physical and chemical properties of modified biochar and activated carbon; apply modified biochar and activated carbon in removal of ammonium from synthesised and real water under batch and column experiments.

28p capheviahe27 23-02-2021 19 3   Download