Science material

In this research, Molecular Dynamics (MD) simulations were conducted to explore the temperature effect on the microstructure and phase transition of the Ag0.25Au0.75 alloy. The findings reveal that as the temperature rises, the material's phase transition switches from crystalline to liquid and vice versa.

9p viengfa 28-10-2024 5 1   Download

Dredging plays a crucial role in port management, but disposing dredged material in the ocean raises environmental concerns. In recent years, this practice has become more prevalent in Vietnam. This study examined the dispersion of total suspended solids (TSS) in seawater from the submersion of dredged material in Vung Ang Port, northern Vietnam, to evaluate the environmental impact.

15p vibecca 01-10-2024 3 1   Download

Welcome to the section that really makes this book unique. In my opinion, one of the best ways to prepare for the DB2 9 Fundamentals certification exam (Exam 730) is by answering sample questions that are presented in the same format that you will see when you take the certification exam. In this section you will find 150 sample questions, along with comprehensive answers for every question. (It's not enough to know which answer is correct; it's also important to know why the answer is correct and why the other choices are wrong!)...

72p vanchien054 27-11-2010 234 59   Download

This is the 3500 question test certificate B to refer your readers. They settled in the south-east of the island, became the majority and do a variety of languages ​​other natives on the island, the Celts, come dangerously close to oblivion. English is widely used due to the influence of U.S. and UK in the fields of military, economic, science, computer science, politics and culture.

503p newbievnx 18-03-2011 745 430   Download

Is a branch of polymer science dealing with analysis and characterisation of polymers. üThe complication of macromolecular chains, the dispersion in molecular weight, tacticity, crystallinity, orientation, composition of polymers etc. and complex morphological systems ⇒ analysis of polymer ≠ the small organic materials ⇒ Focus on viscoelastic properties, dynamic mechanical testing.

114p buitiendung87 06-01-2011 345 154   Download

In international pistol shooting competition the performance improvement needed to be able to move into a medal winning position in a final from fourth position is 1.5 points (Bedford et al., 2012). It may be expected therefore, that by providing a method of reducing tremor resulting in a corresponding performance improvement. This research consists of two studies investigating the physiological response and the shooting performance of elite pistol shooters.

137p runthenight07 01-03-2023 8 3   Download

The objective of this project was to develop \(Ti{O_2}\) based multifunctional substrates through silver decoration, while simultaneously enhancing the photocatalytic performance of \(Ti{O_2}\) in the substrate. Employing Ag nanoparticles introduced additional functionality to the system, namely surface-enhanced Raman scattering (SERS), thus enabling the detection of trace amounts of organic molecules prior to their degradation, all with the same substrate.

123p runthenight04 02-02-2023 10 2   Download

The thesis is performed theoretically and experimentally. The theoretical studies on the dynamics of the single short pulse emission using transient cavity method and narrow linewidth and tunable wavelength generation using Littrow grating configuration were performed. On the other hand, the experimental investigations were carried out Experimental research was carried out based on the optimal results obtained by the theoretical studies.

27p beloveinhouse01 15-08-2021 35 4   Download

The research in this thesis follows two directions: The first, using high performance computing currently available, we studied atomic and molecular emissions in astrophysical environment. The radiative transfer model was applied to explain the characteristics of the recombination line masers Hnα in the envelope of the star MWC 349A.

27p beloveinhouse01 15-08-2021 20 4   Download

Aims of the study: Designing a module-based document on Teaching Methods in secondary school Mathematics and to produce a methodology for using those modules in the teacher training process at the Teachers Training College in Lao PDR, to improve the quality of training and contribute to fostering self-study capacity for students of Mathematics Teacher training College.

27p thebadguys 08-06-2021 34 4   Download

Goals of the thesis: Preparing of zirconia/silane combined films on steel subtrate for organic coatings to replace phosphate and chromate pretreatment; Proposing the mechanism of film formation process and assessing characteristics of morphology, composition, electrochemical properties and bonding of the zirconia/silane film.

27p extraenglish 24-05-2021 24 5   Download

Target of thesis: To develop a method that can simplify the determination of the thermodynamic parameters and XAFS spectra which base on the second-order cumulant only. In particular, this method can be applied for both theoretical calculations and experimental measurements in the XAFS method.

27p extraenglish 24-05-2021 34 5   Download

In this thesis, we research and fabricate AgNDs, AgNFs, AuNFs structures on silicon by chemical deposition and electrochemical deposition method for the main purpose of using as SERS substrate. To this target, we have studied the morphology, structure and some properties of the nanostructures produced.

26p extraenglish 24-05-2021 31 4   Download

The research objectives of the thesis: Improve the usability and quality of LED-based lighting products. Develop a new generation of high-efficiency LED lights, evenly distributed, eliminating light pollution, and replacing existing LEDs.

27p extraenglish 24-05-2021 20 5   Download

The objectives of the thesis: Research, fabricate Er3+-doped silica glass microspheres with different sizes by arc discharge method; building an experimental system to investigate WGM mode laser emission spectrum in the optical communication wavelength region ~ 1550 nm of some fabricated microspheres.

28p extraenglish 24-05-2021 18 4   Download

The main theme of the dissertation: The dissertation targets the basic research on the physical models and new structures; calculating and simulating the bistable devices using 1D, 2D PhC structures. The effects of the PhC configuration and structural parameters on the optical characteristics and working performance of bistable devices will be investigated.

28p extraenglish 24-05-2021 27 4   Download

Research purpose: Preparation and characterization of nanocarrier systems for drug delivery system based on the modification of dendrimer (PAMAM) with biocompatible surfaces such as PNIPAM and PAA to improve the capping cisplatin.

30p extraenglish 24-05-2021 29 4   Download

Research objectives of the thesis: Clarification influence of the elements Na, Sr and Ba substituting for La/Ca and crystal size on the magnetic properties, phase transition and magnetocaloric effects of La0,7Ca0,3MnO3 materials. Found the materials for significant mmagnetocaloric parameters have potential for applications in magnetic refrigeration.Determine the effect of replacing Sr/Ba for Ca in La0,7Ca0,3MnO3 and Co substituting for Mn in La0,7Sr0,3MnO3 on their critical behavior as well as the ferromagnetic interactions order.

31p extraenglish 24-05-2021 28 4   Download

Objective: Study on synthesis of nano dendrimer PAMAM with anticancer drugs carboplatin (CAR) and oxaliplatin (OXA) to reduce the toxicity of the drug to normal cells and improve the effectiveness on cancer cell destruction by increasing solubility, increasing drug storage capacity, targeting drugs passively.

27p extraenglish 24-05-2021 24 4   Download

The goal of the thesis: The thesis examined the effect of different nanostructured morphologies in conductive polymer films (PPy, PANi) on NH3 gas sensitivity. The thesis fabricated the nanostructured hybrid films between metal oxide (NiO) and conductive polymer (PPy) successfully and examined the NH3 gas sensitivity properties of the NiO / PPy hybrid film.

28p extraenglish 24-05-2021 30 3   Download