Energy technologies

Buckling and postbuckling behaviors of porous functionally graded graphene platelets-reinforced composite (porous FG-GPLRC) cylindrical shells with stiffeners subjected to external pressures are presented in this paper. Three distribution types of porosity in the shells are considered. The smeared technique for stiffeners is employed to model the mechanical behaviors of the stiffened shells.

13p viengfa 28-10-2024 4 2   Download

An analytical approach for nonlinear buckling of functionally graded graphene platelet reinforced composite toroidal shell segments is presented in this paper. The Ritz energy procedure is executed, and radial pressure– deflection expression is constituted to obtain the postbuckling strength and critical buckling pressure of the shells.

7p viengfa 28-10-2024 3 1   Download

Along with the development of science and technology and the application of the achievements of the 4th Industrial Revolution, many countries around the world have succeeded in building a smart city model that contributes to improving the quality of life, improving the service quality of the city government, reducing energy consumption, and enhancing the effective management of natural resources. This article aims to propose technological solutions in smart city management and development associated with digital transformation.

8p vibecca 01-10-2024 3 2   Download

The research results are aimed at providing materials for use in training engineers specializing in urban environmental engineering. It is also a reference for engineers who directly perform operational management at waste power plants or scientists and managers interested in research in the field of domestic solid waste management.

6p vibecca 01-10-2024 2 1   Download

The Adsorption – desorption is considered as one of the most promising VOCs treatment technologies due to its cheap operational cost and low energy consumption. However, there are a huge amount of adsorbed VOCs released in desorption process. That is the reason why this study focused on the combination of adsorption-desorption with catalytic oxidation to treat completely VOCs as toluene.

6p vikwong 29-09-2024 3 1   Download

This paper offers a comprehensive techno-economic analysis of capacitive deionization (CDI) technology, examining its significance in water treatment. The analysis begins with a detailed elucidation of CDI principles, emphasizing its operational framework, and delineating both advantages and limitations.

14p vifaye 20-09-2024 2 1   Download

Accelerogram is a significant input in seismic analysis of structures, particularly for performance-based seismic designs and for advanced technologies using nonlinear energy dissipation devices. The paper aims to detail the procedure of selecting and scaling recorded seismic accelerations according to requirements specified by TCVN-9386:2012.

13p vifaye 20-09-2024 4 1   Download

This paper uses the autoregressive method of 23 years to investigate the effect of transitioning to a green economy with those mentioned issues on sustainable development in Vietnam. The results show that FDI and trade openness has a negative impact on sustainable development in both a short time and a long time, whereas using renewable energy and technological innovation significantly promotes sustainable development in Vietnam.

14p toduongg 24-08-2024 3 2   Download

Once entirely the domain of space-borne applications, the effects of high energy charged particles on electronics systems is now also a concern for terrestrial devices. Reconfigurable components such as FPGAs are particularly vulnerable to radiation single event effects (SEU) as they carry a large amount of memory within a relatively small amount of circuit area. This thesis presents a Silicon on Insulator (SOI) based configuration memory system in a radiation hard reconfiguration system.

101p runthenight05 01-03-2023 9 3   Download

The aim of this project is to provide a summary of the current knowledge on energy recovery options from wastewater treatment plants sludge and/or biosolids. This covers technologies as well as data from case studies and research experimental results. The focus of the study is the ATP. The project methodology comprised two stages. The first stage involved a review of the current literature.

166p runthenight07 01-03-2023 7 3   Download

The aim of this research is to improve the reliability of the dynamic formula. This research program will concentrate on the proposal of a correction factor to adjust for this dynamic component similar to the damping parameter used in the Wave Equation Analysis and validate its reliability experimentally and theoretically. Similarly, the issue of the variation in the hammer energy delivered to pile needs to be improved by the adoption of new technology and validate experimentally.

207p runthenight07 01-03-2023 6 3   Download

The noncondensable gases in most geothermal resources include CO2 and smaller amounts of other gases. Currently, the worldwide geothermal power is a small sector within the energy industry, and CO2 emissions related to the utilisation of geothermal resources are consequently small. In some countries, however, such as Turkey and Iceland, geothermal energy production contributes significantly to their energy budget, and their CO2 emissions are relatively significant.

15p tanmocphong 29-01-2022 12 1   Download

Find the optimal technology parameters and components for fabricating Fe-based nanomaterials using high-energy ball milling method; clarify the relationship between technological conditions with the structural characteristics and magnetic properties of fabricated materials; assess the applicability of Fe, Fe-Co nano materials in fabricating nanocomposite magnets and magnetic induction heating.

24p capheviahe26 25-01-2021 19 2   Download

In this study, we provide a greatly improved precision of estimations using the LISE code by evaluating the energy loss straggling of the alpha particles at 5.486 MeV in Tb, Ta, and Au materials. After comparing with the observables, it was found that the ratio of the energy loss straggling computed by the LISE code to that measured in experiments has a fairly large range of 1.5 - 3.0.

6p larachdumlanat127 02-01-2021 9 1   Download

Leachate is a noticeable pollution problem because it contains a considerable amount of persistent organic pollutants (POPs). If leachate isn't treated thoroughly, its leak will negatively affect the environment. Therefore, appropriate treatment technologies are required to remove them. Bio-Electro-Fenton (BEF) is a new method using microorganisms such as electrolytes to convert chemical energy into electricity to help create H2O2 support advanced oxidation process (AOPs).

9p larachdumlanat127 02-01-2021 30 2   Download

Dosimetry is of crucial importance in radiation processing of food. Among others, plastic film has been widely used for dosimetry in radiation therapy since its density is quite similar to the equivalent biological materials. In this study, the depth dose distribution was estimated by using gafchromic film for the purpose of dosimetry in food irradiation.

7p larachdumlanat127 02-01-2021 14 1   Download

There were more than 200 reports with five specialized subcommittees: (A) Physics and magnetic materials, (B) Semiconductor and dielectric physics, (C) Materials - semiconductor components - dielectric, (D) Biomedical materials - agriculture, energy - environment, (E) Composite materials - metals - ceramics. Besides, numerous reports submitted to the Journal of Science and Technology (Vietnam Academy of Science and Technology), full-text reports sent to the Organizing Committee, after a critical review process, had been summarized and published in the Collection of conference reports.

9p larachdumlanat127 02-01-2021 13 1   Download

The feasibility of the synthesis of the 309,312126 isotopes via the mentioned systems is investigated based on the widths. The widths in the excitation energy range of E= 10 – 100 MeV are calculated in the scope of the statistical model, in which the level density is calculated by using the Fermi-gas model. By employing the LISE++ code, the level densities the compound nuclei, 309,312126 nuclei, are calculated to be about 105 – 1050 (MeV−1 ) in the energy range of interest

8p larachdumlanat127 02-01-2021 5 1   Download

Justification of the optimal values of corn cob grinder in the process of pre-grinding the corn cob, reduce energy consumption and improve productivity. Thus, the urgent problem of today is the need to develop a new technology for grinding corn cobs for small peasant and personal subsidiary farms that have a productivity that meets their needs.

9p lucastanguyen 01-06-2020 9 2   Download

This paper was carried out with the purpose of reviewing, classifying and testing the existing methods for determination the Bond Ball Mill Index.

15p lucastanguyen 01-06-2020 20 2   Download