Physical chemistry

This study has adopted a systematic approach to identify the extent to which 20 kHz ultrasound affects the particle size and solubility of different protein solutions containing 4%, 7% and 10% whey proteins, caseins or a mixture at a range of energy densities (15-400 J/mL) and various pH (4.0-9.0). Milk proteins hold a prominent place in the food industry as they are used in many manufactured products for their functionality and most importantly nutritional benefits.

136p runthenight04 02-02-2023 8 2   Download

Research purpose: Using computational chemistry methods to study the mechanism of hydrogenation CO on the transition metal catalyst systems of Ni, Cu, Co, bimetallic catalysts NiCu, CoCu and catalytic systems bearing cluster on oxide carriers: MgO, Al2O3 and activated carbon (AC); compare and clarify the role of catalyst centers in single or bimetallic catalyst systems; clarifies the role of carriers (MgO, Al2O3 and AC) in the hydrogenation of CO.

27p thebadguys 08-06-2021 27 4   Download

Purpose: Using the density functional method (DFT) to find out the mechanism of CO2 hydrogenation reaction, the main product, by-products, the optimal reaction path, compare and evaluate the catalytic ability of the Ni5 cluster, Ni5/MgO, and Ni5/AC.

25p thebadguys 08-06-2021 12 3   Download

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.

28p extraenglish 24-05-2021 32 4   Download

Research aims and objectives: Determining the effect of the single additive being organic and inorganic substances such as poly alcohol, poly amines, sodium salt of various modules and the combination of additives on the properties of the zinc coating created in the solution. alkaline plating solution without cyanide, compare the chemical and physical properties of the coating obtained from the non cyanide alkaline plating bath and other plating baths.

26p extraenglish 24-05-2021 20 4   Download

Purposes of the study: Introduce and clarify the concept "the competency of exploring and obtaining knowledge" through elemental competencies and compatible activities in teaching maths for high school students; Find out the reality and need of improving the competency of exploring and obtaining knowledge in teaching maths for high schools students majoring in physics, chemistry and biology; Build and test the feasibility of pedagogy method applied in teaching maths at high school classes majoring in physics, chemistry, and biology to foster this capacity for students.

27p prisonbreak123 21-05-2021 25 3   Download

Determining the effect ofthe single additive being organic and inorganic substances such as poly alcohol, poly amines, sodium salt of various modules and the combination of additives on the properties of the zinc coating created in the solution. alkaline plating solution without cyanide, compare the chemical and physical properties of the coating obtained from the non cyanide alkaline plating bath and other plating baths.

26p capheviahe29 17-03-2021 17 5   Download

Successful fabrication of polymer nanocomposite on the basis of PA6, PC thermoplastics, and CNT reinforcement to effectively apply the material system to the production of body protection equipment for the army forces.

28p capheviahe27 23-02-2021 16 2   Download

Determining the effect of the single additive being organic and inorganic substances such as poly alcohol, poly amines, sodium salt of various modules and the combination of additives on the properties of the zinc coating created in the solution. alkaline plating solution without cyanide, compare the chemical and physical properties of the coating obtained from the non cyanide alkaline plating bath and other plating baths. Since then, an additive system can be used in alkaline zinc-plated tanks without cyanide.

26p capheviahe27 23-02-2021 30 5   Download

Manufacture composite based on epoxy reinforced by glass fiber with organ – modified nanosilica using organotitanate curing agent that have good mechanical strength, thermal stability, flame restraint ability; improve the toughness of epoxy resin by incorporating reinforcing agent such as organ – modified nanosilica and glass fiber with appropriate manufacturing condition and ratio.

28p capheviahe26 25-01-2021 31 3   Download

Study the structural, morphological and physicochemical properties of synthetic materials by modern physical and chemical methods such as XRD, FTIR, SEM, TEM, XPS, EDX, BET, TG-DTA, UV -Vis; evaluation of photochemical catalyst using visible light in the decomposition of dyes RR-195, RY-145 on synthetic materials.

27p capheviahe26 25-01-2021 44 3   Download

Fabbrication of electrocatalyst materials on the IrO2 basis for oxygen evolution reaction in proton exchange membrane water electrolyser PEMWE; applying to fabbricated proton exchange membrane water electrolyser PEMWE to produce hydrogen.

26p larachdumlanat129 20-01-2021 25 5   Download

Objectives of the study: Focusing on studying how to incorporate of Fe and Cu atoms into GO and SBA-15 frameworks by atomic implantation method to create new, advanced and highly efficient nanocomposite catalysts for DDT treatment.

26p xacxuoc4321 08-07-2019 49 6   Download

 IUPAC Definition: chromatography is a physical method of separation in which the components to be separated are distributed between two phases, one of which is stationary while the other moves in a definite direction  Stationary phase (SP): common name for the column packing material in any type of chromatography  Mobile phase (MP): liquid media that continuously flows through the column and carries the analytes  Analyte: the chemical species being investigated (detected and quantitatively measured) by an analytical method...

19p qdung92ct 03-07-2012 82 10   Download

Công trình bảng tuần hoàn mở rộng được đăng trên tạp chí Physical Chemistry Chemical Physics, 2010, trong đó 54 nguyên tố siêu nặng mà giáo sư Pyykko mới dự báo có thể tồn tại trong các điều kiện cực trị với tuổi thọ rất ngắn do sự phân rã phóng xạ, nhưng cho đến nay chúng vẫn chưa được tổng hợp. Công trình nghiên cứu này cho thấy các quy tắc của cơ học lượng tử và thuyết tương đối xác định các tính chất hóa học như thế nào, ví dụ trạng thái oxy hóa cao kỷ lục...

2p nkt_bibo41 02-02-2012 155 12   Download

Collection of research reports best university in 2007 honored the author: 12. Truong Van Nam, Nguyen Xuan Dung, study the effect of substituents on the properties of aniline by approximate methods AM1 quantum ... Quantum mechanics is one of the fundamental theory of physics. Quantum mechanics is an extension and supplement of Newtonian mechanics (also known as classical mechanics). It is the basis of many other disciplines of physics and chemistry as solid state physics, chemistry quantum particle physics.

6p phalinh14 07-08-2011 86 3   Download

A writing english test (number 1) Use of English Question I : Underline the correct word to complete the passage below. Miss Richards was a teacher (1. in / at) a school in England. She taught chemistry and (2. physics / physicist ) from the lowest (3. to / and ) the highest classes in the school.

5p fulham246 23-06-2011 94 5   Download

Physics has an important role in our life. Without physics and the work of physicists, our modern life would not exist. Using physics, people created machines, instruments and some different divices from the crudest to the most modern aspect. Techology is developed more rapidly, more modern day by day. Moreover, all other natural sciences- example chemistry, biology, medicinedepend upon physics for the foundations of their knowledge.

17p tieulaubau 21-06-2011 87 5   Download