Methods

In this study, we investigated some conditions affecting the extraction of total carotenoids from R. mucilaginosa using environmentally friendly chemicals: cell disruption conditions with organic acids combined with ultrasound-assistant method, using ethanol and petroleum ether solvents to replace acetone in the process of extracting total carotenoids to obtain a benign product, easy to apply in food.

8p viling 11-10-2024 2 1   Download

This paper presents an improved method of direct torque control (DTC) for three–phase asynchronous motors with squirrel cage rotors. The improved method of DTC uses three sliding mode controllers to control torque and flux independently.

13p viling 11-10-2024 3 0   Download

In kinematic synthesis and analysis of planar mechanisms the designer must define a geometry and set of motions for a design task. This paper will focus on how to determine the forces or torques acting on the planar mechanism by numerical method when acceleration and dynamic properties of the linkage are known.

9p viling 11-10-2024 3 1   Download

In this paper, we propose a wavelet type-2 fuzzy brain imitated controller (WT2FBIC) for nonlinear robotic systems. The suggested method combines a wavelet type-2 fuzzy system (WT2FS) and a brain imitated controller (BIC) to improve learning efficiency.

11p viling 11-10-2024 1 1   Download

The paper will present the design of techniques for building an application for testing and evaluating knowledge in the Data Structures and Algorithms course. This application will be a useful tool for both instructors and students, thereby enhancing the quality of teaching and learning in Information Technology-related subjects.

10p viling 11-10-2024 4 1   Download

Through the use of four tradional research methods including document synthesis, interviews, pedagogical testing, and stascal analysis with a sample of 12 male students, the study had synthesized documents, conducted interviews, and tested the reliability of the tests, selecting 10 physical fitness tests for the U12 male soccer team of the school with sufficient reliability (coefficient r > 0.8).

8p viling 11-10-2024 1 1   Download

This research aimed to investigate teachers’ perceptions and practices of projectbased learning (PBL) in teaching speaking skill at some high schools in a Central Vietnam province. The mixed methods research was adopted with the population of twenty-five teachers of English as a foreign language (EFL).

16p viling 11-10-2024 1 0   Download

This study examines the implementation of the case study method in teaching National Defense - Security Education in Ho Chi Minh City high schools. A survey of 50 teachers and 200 students from three high schools reveals that while the case study method has been introduced, its application remains limited, with an average score of 3.19.

10p viling 11-10-2024 1 1   Download

This article aims to investigate the impact of personal background characteristics on the socialization with academic aspects of ethnic minority students in higher education institutions in Ho Chi Minh City. A quantitative method was used to measure the extent of the impact of these elements.

12p viling 11-10-2024 3 1   Download

Initial Public Offering (IPO) is considered a strategic decision of utmost importance for every business, especially companies that wish to list on the stock exchange. international. Using the Wilcoxon non-parametric test method, the study shows that IPO activities have a positive impact on the profits of businesses listed on the NASDAQ Global Select Market stock exchange in general and of VinFast in particular.

16p viling 11-10-2024 4 1   Download

This paper aims to complete the three main goals: i) Confirming the existence of the pricing bubbles in segment residential land in Thach That from 2017 to 2023; ii) Clarifying the factors affecting the landing bubbles in the district; and iii) Suggesting some methods to handle the bubbles problems.

15p viling 11-10-2024 1 0   Download

This research applies mixed methods of comprehensive literature review and secondary data collection related to the Vietnamese traditional food products (TFPs) production and a national promotion strategy for these products, namely the One Commune One Product program (OCOP).

16p viling 11-10-2024 5 1   Download

In this paper, the authors have based on the methodologies of historical materialism and diffusionism, as well as research methods such as comparison, analysis and synthesis, logic and history, abstraction and generalization.

14p viling 11-10-2024 2 0   Download

Low-rank representation (LRR) plays a significant role in image classification tasks due to its ability to capture the underlying structure and variations in image data. However, traditional low-rank representation-based dictionary learning methods struggle to leverage discriminative information effectively.

9p viling 11-10-2024 3 1   Download

Ultra-wideband (UWB) radars are getting much attention for maritime applications of smart and luxury ships in which UWB radar could be integrated into Bridge Navigational Watch & Alarm System - BNWAS. One of the interesting applications of UWB radar is vital signs measurement, which is a contactless method. UWB radar measures respiration and heartbeat rate by the motion of thorax for detecting and checking the state of people on the bridge.

5p vifilm 11-10-2024 3 1   Download

This study evaluates the effect of the air gap size (d) on the air uniformity in the chamber dryer with the most appropriate air blade angle value inherited from the previous study. Furthermore, several cases of tray and equipment length are also tested, and they also affect the air distribution.

5p vifilm 11-10-2024 2 1   Download

Consumer demand is an important factor in any business, especially in the food retail industry whose products are perishable and have a short life cycle. The daily demand for a food product is affected by external factors, such as seasonality, price reduction and holidays.

8p vifilm 11-10-2024 2 1   Download

This study aims to explore the opinions of HIU students about the Google Form tool in reviewing and testing English Grammar knowledge. The research team used qualitative and quantitative methods to collect data from 94 first-year students of the English Language Department of Hong Bang International University

7p vifilm 11-10-2024 8 1   Download

This study evaluated the test-retest reliability of the question about trouble with the locomotive organs in the NMQ in Vietnamese physical therapists (VPTs). Materials and method: It was a cross-sectional study in 10 VPTs by a convenient sampling technique.

6p vifilm 11-10-2024 3 1   Download

A novel series of s-triazine derivatives was designed and screened for in silico an cancer activity in histone deacetylase 6 (HDAC6) target by molecular docking method using AutoDock Vina.

10p vifilm 11-10-2024 2 1   Download