Materials selection

This study aimed to characterize new tomato accessions on their desirable morphological traits to select potential materials for further breeding programs of ornamental tomato varieties in Vietnam.

15p vibecca 01-10-2024 4 2   Download

The article has focused on performing the experimental measurement of the thermal difference between two coating materials. The result will also be applied to evaluate and select the effective thermal paint for the protected system.

12p viyoko 01-10-2024 2 1   Download

Supplier selection criteria are of importance in supplier selection because of their impact on the input materials and production progress of purchasers. However, there is a dearth of researches on a well-designed and validated questionnaire, from which practitioners or researchers are able to execute an official survey in large scope to assess supplier selection criteria for textile and apparel sector in general and for Vietnamese textile and apparel industry in particular.

8p longtimenosee10 26-04-2024 5 2   Download

Digital technology has put much influence on curriculum design and lesson planning, especially for language classes. This study shed a light on the background of Industrial Revolution (IR) 4.0 in relation with designing curriculum and selecting appropriate teaching materials in higher education in Vietnam.

9p viindra 06-09-2023 11 5   Download

Two major areas of the scorecard development process were identified as having much capacity for improving credit scoring models. These are the application of 1) better classifiers and 2) variable selection techniques. However, the application of an artificial immune system for developing scorecards as well as the use of other variable selection techniques, other than stepwise regression, in credit scoring are quite limited as indicated by the scarcity of published materials in these two areas in the current literature.

210p runthenight04 02-02-2023 6 2   Download

The following boundaries are considered in pursuing the proposed research study: This study is conducted on an experimental basis; Domestic hot water supply using evacuated tube solar thermal collectors has been selected as the applied context for this study; Paraffin has been chosen to be used as a PCM for this study due to its attractive techno-economic properties for use with solar thermal systems in domestic hot water applications; The effect of scale factor is not studied; The effect of the shape of the PCM container is not investigated in this study.

102p runthenight04 02-02-2023 4 2   Download

Once the mechanical properties of printed TPU are characterised, a novel, low cost, and environmentally friendly method for concrete casting using printed TPU moulds is proposed in this thesis. Additively manufactured TPU mould is developed to cast complex concrete structures. A planar topologically optimized cantilever and a free-form 3D column are cast using the proposed TPU mould. Good surface quality is obtained for the cast concrete elements, and the moulds can be reused many times after cleaning.

98p runthenight04 02-02-2023 8 4   Download

Once the mechanical properties of printed TPU are characterised, a novel, low cost, and environmentally friendly method for concrete casting using printed TPU moulds is proposed in this thesis. The findings of this thesis will provide clear guidelines for the selection of processing parameters for additively manufactured TPU parts and the method of casting complicated concrete structures with additively manufactured TPU mould.

98p runordie3 06-07-2022 13 3   Download

In the paper "Programmed Synthesis of Tetraarylthieno[3,2-b]thiophene by Site-Selective Suzuki Cross-Coupling Reactions of Tetrabromothieno[3,2-b]thiophene", Thieno[3,2-b]thiophene is a structural motif that can be found in many important organic materials. A number of mono-, diand tetraarylthieno[3,2-b]thiophenes are reported herein.

4p runordie3 27-06-2022 11 2   Download

The aim of the study is to describe the beliefs of teachers in some English centers in Ho Chi Minh City regarding the selection of supplementary materials and how supplementary materials are adapted and designed; identify the most influential sources of teachers’ beliefs; examine the convergence and divergence between teachers’ beliefs and their practice.

193p badbuddy10 21-04-2022 40 7   Download

Studying, analyzing and evaluating the basic factors affecting the wear resistance of the shear cutting drum, such as coal strength, the geometry of the cutting teeth, materials of cutting teeth, the cutting angle. Cutting depth, cutting feed and cutting speed are the basis for selecting the appropriate factors in fabrication, using the cutting teeth of the shearer.

27p closefriend09 16-11-2021 20 2   Download

Keeping in view the importance of Sugarcane crop as food, feed and fodder as well as industrial material this study was conducted to find out the socio-economic aspects of sugarcane cultivators and the cost incurred for cultivation. One hundred respondents were selected from Kurebhar block of Sultanpur district.

8p trinhthamhodang11 27-04-2021 25 3   Download

An experiment was conducted to study the effect of edible coating and packaging material on physiological and sensory quality of litchi fruits. For this, mature litchi fruits were harvested from HRC, Patharchatta and the selected fruits were treated with Guar Gum, Xanthan Gum and Methyl cellulose (low viscosity and high viscosity)as edible coating at different concentration (0.5%, 1.0%, 2.0%, 2.5%) and stored at 4 ± 1 °C under 90 ± 5% RH.

10p chauchaungayxua11 23-03-2021 22 3   Download

Homogenization of materials is a long-term research field of supervisor Pham Duc Chinh and Material Mechanics team with many published results. Therefore, author has selected the topic "Estimates and simulation for the elastic moduli of random polycrystals " as the research thesis.

27p capheviahe26 25-01-2021 9 3   Download

Successfully synthesized nano – mixed oxide by different gelling agents; compared, selected the appropriate gelling agent; researched to evaluate the catalytic activity of mixed oxide nanoparticles formed with pollutants methyl orange (MO), methylene blue (MB). Successful dispersed mixed oxide nanoparticles on rGO; investigated catalytic activity of material systems on parathion, fenitrothion.

28p capheviahe26 25-01-2021 32 5   Download

In this work, the adsorption ability of β12 borophene towards some main harmful gases was investigated. The first-principles calculations were employed to obtain the adsorption configurations and the adsorption energies of CO, NO, CO2, NH3, and NO2 on 12 borophene. The vdW interactions are taken into account by using three functionals: revPBE-vdW, optPBE-vdW, and vdW-DF2.

8p tamynhan6 14-09-2020 45 5   Download

The complexation activity of NADO with various metal ions in an ethanolic solution is specifically studied by means of fluorescent spectra. The NADO exhibits a significant fluorescence enhancement at 469 nm in presence of Al3 þ due to the formation of a complex.

8p tamynhan4 06-09-2020 9 1   Download

This review article is an effort to combine the recent developments, concerns and prospective applications of environmentally friendly nano- with micro-structured polymeric materials such as chitin, starch, polycaprolactone and nanocellulose.

26p tamynhan4 06-09-2020 8 2   Download

Study on fabrication proton exchange membrane fuel cell (PEMFC). Characteristics and selection of the optimal catalyst material and composition for the catalyst layer in membrane electrodes assembly (MEA) and to evaluate influence of manufacturing technological parameters on MEA properties and from that basis master core technology to develop MEA manufacturing process.

28p trinhthamhodang7 31-08-2020 22 2   Download

Raw materials management can be defined as the function of business that is responsible for the coordination of planning, sourcing, purchasing, moving, storing and controlling raw materials in an optimum manner so as to provide services to customers at a minimum cost. Raw materials management enables companies to coordinate raw materials-related activities and control total raw materials costs through integrated systems. The raw materials management has the duties as follows: Purchasing; Selecting supplier; Valuation process; Reception process; Technical evaluation; Trade evaluation.

31p cothumenhmong6 17-07-2020 31 4   Download