Preparation process

Volatile organic compounds (VOCs) are one of the environmental pollutants of concern because they contribute to polluted environmental phenomena such as photochemical smog and secondary particulate matter. The current research focuses on preparing the manganese oxide catalyst by many different methods and evaluating their activity in the toluene oxidation reaction.

6p vikwong 29-09-2024 2 1   Download

Graphene-based electrode materials exhibit a high specific capacitance and long charge-discharge cycling life, but the material cost remains high because of the complexity of the graphene manufacturing process. This study employed an electrochemical exfoliation method to prepare graphene in a simple and ecologically friendly procedure. According to research findings, the disordered multi-layer structure of graphene exhibited great purity, porosity, and graphitization.

6p vikwong 29-09-2024 3 1   Download

The research uses a mathematical method to aims to: (1) investigate the characteristics of bid compensation, (2) analyze the effectiveness of bid compensation in helping develop appropriate strategies from an owner’s perspective for projects where the bid preparation costs are high, (3) add to the existing literature on tender management.

13p vifilm 24-09-2024 5 1   Download

The process of mechanical root canal preparation creates smear layer. The smear layer can prevent the penetration of intracanal medicaments into dentinal tubules and influence the adaptation of filling materials to canal walls. The purpose of this study is to compare the smear layer removal ability of root canal irrigation methods with chelat solution.

6p vifaye 20-09-2024 2 1   Download

In this study, a thermosetting benzoxazine was successfully prepared from environmentally friendly sources to be used as an adhesive. The phenolic component used for the synthesis of the benzoxazine monomer is cardanol derived from the cashew nutshell, while the amine fractions are terephthalamide, which is a product of the amination process of used polyethylene terephthalate plastic bottles (PET).

11p xuanphongdacy06 18-09-2024 3 1   Download

To build and assess the result of the implementation in the Mechanical Bowel Preparation (MBP) process for patients undergoing laparoscopic elective colorectal surgery for cancer at the General Surgery Department in the International Medical Centre of Hue Centre Hospital.

5p vinatisu 29-08-2024 1 1   Download

In this research, in an attempt to make use of the kaolin resources in Vietnam, we present a synthetic process of zeolite A via hydrothermal from kaolinite, together with the modification process of zeolite A using different metallic cations. The characteristics of the prepared zeolite LTAs such as chemical composition and crystalline structure, as well as their catalytic activity in the methanation reaction of carbon dioxide (CO2) to methane (CH4) were extensively investigated.

8p dianmotminh02 03-05-2024 7 1   Download

A major challenge for outdoor uses of methylammonium lead halide (MAPbX3) solar cells is the poor durability of the perovskite film under humidity. This instability is due to limitations of the dipping or spin coating process in producing MAPbX3 films through a direct reaction between PbI2 and methylammonium iodide (MAI) in an organic solvent. In this study, we devised an eco-friendly and cost-effective method to fabricate MAPbX3 films using an aqueous solution of Pb(NO3)2 and MAI vapour. I

7p dianmotminh02 03-05-2024 9 2   Download

TiO2 nanoparticles with crystallite size less than 15 nm were prepared from TiCl4 precursor by a modified sol-gel route. As-prepared TiO2 nanoparticles were extensively characterized using X-ray diffractometry, and their crystallite size was calculated using Debye-Scherrer formula.

11p viohoyo 25-04-2024 6 3   Download

The objectives of this research work are: Study the clay intercalation by organic dye and develop a process to produce nanoclay-dye pigment with better stability and good performance; Conduct structural characterization to verify the level of intercalation and stability of clay-dye pigment by using X-Ray diffraction (XRD) and Transmission Electron Microscopy (TEM); Investigate the thermal stability of clay dye pigment using Thermo Gravimetric Analysis (TGA) to reveal the effect of dye intercalation into the clay on improving thermal stability of organic dye; Compound the clay- pigment with ...

141p runthenight07 01-03-2023 5 3   Download

Lecture Information technology project management (Eighth Edition): Chapter 7, after studying this section will help you understand: Understand the importance of project cost management; Explain basic project cost management principles, concepts, and terms; Describe the process of planning cost management; Discuss different types of cost estimates and methods for preparing them.

41p cuchoami2510 18-02-2022 22 6   Download

A major earthquake (Mw=7.0) occurred in the Samos Island on the 30th of October 2020 at 11:51 UTC. Swarm satellite magnetic data were analysed for 153 days before and 46 days after the earthquake. Preearthquake and postearthquake anomaly search is constrained within the Dobrovolsky’s Circular Area. Fundamentally, there are 5 steps for processing satellite magnetic data to interpret the earthquake preparation phase. The first step is converting geographical coordinates to geomagnetic latitude and longitude.

10p tanmocphong 29-01-2022 13 0   Download

In this thesis, I have developed a low-cost, simple and one-step approach to synthesize MnO2/graphene composite with enhanced electrochemical performance. MnO2/graphene composite was prepared via a plasma-assisted electrochemical exfoliation method with an electrolyte solution made of KMnO4 precursor.

60p closefriend03 13-10-2021 13 2   Download

The purposes of the dissertation: Preparation of low molecular weight sodium alginate from brown algae in Nha Trang Bay which has anticoagulant activity as a raw material for functional food production.

36p tunelove 11-06-2021 23 3   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 21 5   Download

Objectives of the dissertation: Research on the degradation process of PE films containing prooxidant additives and recycled polyethylene. After that, preparing plant polybags with different time of degradation.

27p extraenglish 24-05-2021 25 4   Download

The main aim of this research is to investigate the reading comprehension level of 12th-grade students at ADHS, as well as explore the results of improved reading comprehension after students apply some strategies to the reading process. And, it will be able to help students improve their reading skills and prepare their luggage for the national high school graduation exam.

57p cothumenhmong10 19-03-2021 43 7   Download

The objective of the thesis is to successfully build up a process for preparation of bioactive water-soluble low molecular weight β-glucan product from from spent brewer’ yeast by irradiation method.

31p capheviahe26 25-01-2021 40 5   Download

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 larachdumlanat129 20-01-2021 36 4   Download

In this study, pellets of iron alumina pillared bentonite (PFeAPB) were prepared by dispersing iron ions on alumina pillared bentonite pellet. Catalyst activity and lifetime were investigated via efficiencies of Methyl Orange (MO) decolorization and Chemical Oxygen Demand (COD) removal, a typical dye type of textile wastewater. Characteristics of the PFeAPB catalyst were examined by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area, and X-ray fluorescence (XRF).

9p larachdumlanat127 02-01-2021 20 2   Download