High performance

The study was conducted with the hope that the result gained could clarify the effects of peer feedback on students’ writing performance at a high school, Thai Nguyen province. Based on the aims, an action research design was employed.

8p viengfa 28-10-2024 1 0   Download

High quality of service (QoS) requirements in multi-priority wireless sensor networks pose new challenges to the Internet of Things (IoT). In a multi-event wireless sensor network (MWSN), nodes generate different types of data packets with different priority such as urgent (high priority) or normal (low priority), with different traffic proportion.

10p viengfa 28-10-2024 1 1   Download

This study aims to contribute to the development of a GaN/Ga2O3 diode that can be utilized in high-power device applications. The simulated device is calibrated against experimental GaN and Ga2O3 diodes, considering the effect of thickness of GaN layer and its doping concentration on the performance of GaN/Ga2O3 diodes. The band structures of devices are investigated to revial which factors that affect the properties of GaN/Ga2O3 diode.

6p viling 11-10-2024 3 1   Download

In this study, a numerical model was developed to simulate the mechanical behavior of an orthotropic steel bridge deck (OSBD) strengthened with UHPC under localized loads based on the five-point bending beam test configuration.

10p vibecca 01-10-2024 2 0   Download

This article presents the results of an experimental study on the flexural behavior of 4 specimens: 1 specimen of reinforced concrete (RC), 1 specimen strengthened with FRP sheets, and 02 specimens with the same height as the RC specimen but with a replacement of 3 cm of the protective concrete layer with a UHPC layer, either bonded or not bonded to the existing concrete, with or without the reinforcement of FRP sheets.

11p vibecca 01-10-2024 1 1   Download

The composite girder, which combines a steel beam with an ultra-highperformance concrete (UHPC) slab, has gained significant attention in recent years as a new type of bridge structure. However, accurately estimating the bending capacity of such girders remains a challenge, as practical methods are limited. In this article, the authors propose a theoretical approach based on the Euler-Bernoulli beam theory to determine the bending capacity of composite girders.

10p vibecca 01-10-2024 2 2   Download

In the paper, we propose a mathematical model that combines bottom erosion and riverbank failure mechanisms. The model incorporates high-performance GPUs (Graphics Processing Units) to enhance its computational efficiency and capability.

22p vibecca 01-10-2024 3 1   Download

This paper proposes a new method of representing malicious code as an image by arranging highly correlated bytes in close pixels in the image. The current research trains deep learning models on self-built datasets and compare the performance of different image representation methods.

9p viyoko 01-10-2024 3 1   Download

This paper present a high-throughput, low latency 4-pipeline stages architecture of AES with efficient throughput per resource (Mbps/slice). The proposed implementation achieves a high throughput of 105.7 Gbps with an efficiency of 31.48 Mbps/slice. In comparison to state-of-the-art works, our design surpasses the majority of existing designs in terms of throughput and latency.

9p viyoko 01-10-2024 1 1   Download

This study investigated the mechanical properties of high-performance concrete using notched specimens. All flexural specimens had an identical geometry of 40×40×160 mm3 with a span length of 120 mm.

12p viyoko 01-10-2024 4 1   Download

This study aimed to validate a procedure for the quantification of verbascoside in the root of Rehmannia glutinosa varieties 19 by high performance liquid chromatography (HPLC) to serve the assessment of medicinal quality

8p viyoko 01-10-2024 3 1   Download

In this study, the experimental program was performed on two full-scale steel-concrete composite beams to investigate the effect of the shear connection degree on the strain of the steel-concrete composite beams. Perfobond shear connectors were used in these steel-concrete composite beams.

5p viyoko 01-10-2024 2 2   Download

The graphene-based sponge showed remarkable adsorption performance toward oils and organic solvents with the adsorption capacity ranging from 40 to 70 folds of sponge’s weight. The sponge also exhibited high recyclability, which is considered as a promising material for the practical application.

5p vikwong 29-09-2024 2 1   Download

The combination of hydrochlorothiazide (HCT), amlodipine besylate (AML) and olmesartan medoxomil (OLM) is highly effective in treating hypertension. Currently, Vietnamese Pharmacopoeia V and other reference pharmacopoeias do not have a procedure for the simultaneous quantification of these three ingredients. Objective: To develop and validate a procedure for simultaneous determination of HCT, AML and OLM in tablets by HPLC method.

11p viengfa 29-09-2024 3 2   Download

Bài viết trình bày xây dựng và thẩm định phương pháp định lượng Quercetin trong cây trai hoa trần (Murdannia nudiflora (L.) Brenan.) bằng phương pháp sắc ký lỏng hiệu năng cao (High-performance liquid chromatography - HPLC).

11p viengfa 29-09-2024 1 1   Download

The article develops a novel framework for Multidisciplinary Design Optimization of aircraft wing. Practically, the study implements a high-fidelity fluid/structure analyses and accurate optimization codes to obtain the wing with best performance.

14p vifilm 24-09-2024 1 1   Download

This study aims to investigate the effect of confining pressure on the shear resistance of UHPFRCs reinforced with different types of fiber: 1.5 vol.-% of the short smooth (SS, l/d = 13/0.2) fiber and the long smooth (LS, l/d = 30/0.3) were investigated.

8p vifilm 24-09-2024 3 1   Download

In this study, grid nanoindentation and statistical deconvolution analysis were applied into a developed Ultra-high performance concrete (UHPC) to broaden the understanding of the microstructure phases and their mechanical properties.

12p vifilm 24-09-2024 1 1   Download

The dependence of load-carrying capacity on span length of beams, which contained a combination of normal strength concrete (NC) - High-performance fiber-reinforced concrete (HPFRC), was investigated in this study.

12p vifilm 24-09-2024 2 1   Download

This research is aimed to propose a mix design method of HVFA ultra-high performance concrete (HVFA UHPC) comprising 50 wt.% replacement of cement and have a reasonable workability and 28-day compressive strength above 120 MPa and 150 MPa under standard curing and heat treatment, respectively.

12p vifilm 24-09-2024 5 1   Download