Organic chemical

A Abatement: Reducing the degree or intensity of, or eliminating, pollution. Abatement Debris: Waste from remediation activities. Absorbed Dose: In exposure assessment, the amount of a substance that penetrates an exposed organism's absorption barriers (e.g.,, skin, lung tissue, gastrointestinal tract) through physical or biological processes. The term is synonymous with internal dose. Absorption Barrier: Any of the exchange sites of the body that permit uptake of various substances at different rates (e.g., skin, lung tissue, and gastrointestinal-tract wall).

217p holigon10 15-06-2012 473 150   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 343 154   Download

Trace element (iron, manganese, cobalt, copper, zinc, selenium, and molybdenum): chemical element that is needed in minute quantities for the proper growth, development, and physiology of the organism. In biochemistry, a trace element is also referred to as a micronutrient.

25p zingzing09 21-10-2012 84 8   Download

The objectives of the thesis: Isolation and determination of chemical structures of the isolated compounds from the leaves of Excoecaria agallocha L. and Excoecaria cochinchinensis Lour.; studied the cytotoxic, anti-inflammatory, and antimicrobial activities of the isolated compounds to find the bioactive compounds.

27p closefriend09 16-11-2021 32 3   Download

Study on main chemical constituents of two Gymnema species including Gymnema sylvestre and Gymnema latifolium growing in Vietnam and evaluate the inhibitory effect of α-glucosidase and α-amylase enzymes of isolated compounds.

27p closefriend09 16-11-2021 19 4   Download

Aims of the study: The study has applied the view of differentiated teaching in designing and using the system of differentiated exercises in organic chemistry teaching at high schools in order to develop the problem-solving capacity for high school students in several Mekong Delta provinces.

27p tunelove 10-06-2021 13 3   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.

28p thebadguys 08-06-2021 26 3   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 30 4   Download

The objectives of the thesis: The objectives of this study are to investigate the main chemical compositions of Euphorbia hirta L. to search for chemical constituents in relation to biological activities, contributing to further studies to create products for application in the aquarculture industry in particular and for life in general.

31p extraenglish 24-05-2021 36 3   Download

Objectives of the dissertation: Research and synthesize and determine the hybrid compound structure containing Quinazoline frame. Research on carcinogenic activity and inhibition of acetylcholinesterase enzyme of synthetic compounds..

26p extraenglish 24-05-2021 22 3   Download

The aim of the thesis: Study on chemical constituents of two Knema species including Knema pachycarpa and Knema saxatilis growing in Vietnam. Evaluate cytotoxic and cetylcholinesterase enzyme inhibitory activitiesof isolates to find out bioactive compounds.

25p extraenglish 24-05-2021 20 4   Download

The aim of the thesis: Study on chemical composition of starfish Acanthaster planci of Vietnam, synthesizing hydroxyl and oxime derivatives from a steroid isolated from this starfish and assessing biological activity of isolated and synthesized compounds.

26p extraenglish 24-05-2021 24 4   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 21 4   Download

The purpose of the thesis is to develop the novel and more effective strategies to furnish fluorine containing compounds employing readily, inexpensive and effective methods under heterogeneous transition metal catalysts.

29p extraenglish 26-05-2021 9 3   Download

Purpose of research: Construction and use of the system of chemical exercises used in teaching organic chemistry to develop the creative capacity for students in gifted high school, contribute to renovating teaching and learning methods Chemistry in gifted high schools oriented towards capacity development.

27p prisonbreak123 21-05-2021 43 4   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 19 5   Download

The objective of the research is to evaluate combination ability of nano additive with carbon black reinforced for rubber and rubber blend; create rubber nanocomposite materials with a high quality, solvent durability and sustainability in the naturally humid environment.

27p capheviahe27 23-02-2021 27 3   Download

The objectives of this study are to investigate the main chemical compositions of Euphorbia hirta L. to search for chemical constituents in relation to biological activities, contributing to further studies to create products for application in the aquarculture industry in particular and for life in general.

31p capheviahe27 23-02-2021 28 4   Download

The objectives of the thesis: Extraction, chemical charaterization of glucomannan from the tubers of Amorphophallus Konjac K.Koch in Lam Dong, Vietnam; parameter optimization for glucomannan hydrolysis reaction to make different types of low molecular weight glucomannan by different methods.

27p capheviahe27 23-02-2021 16 4   Download