Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst <h2>Binh Duong University Journal of Science and Technology</h2> <p>Dear Colleagues,</p> <p>Binh Duong University Journal of Science and Technology (BDUJST) is a quarterly peer-reviewed research journal with the focus on publishing original theoretical and applied research papers with the latest developments and breakthroughs in a number of science and technology fields. The journal accepts papers written in Vietnamese, English, and Russian. The BDUJST welcomes article submissions from all science and technology research areas, including <strong>Physics, Chemistry, Biology, Mathematics, Statistics, Biodiversity, Science Technology, Engineering Science, Computer Science and Educational Science</strong>. Besides that, we also aim to explore papers with contributions to the sustainability of <strong>Business and Economics</strong>, etc. </p> <p>In order to expand both theoretical and practical understandings, the journal provides readers with a variety of open access stimulating and informative research papers contributed by a broad coalition of individuals and groups.</p> <p>We would be really glad and honored if you accept our invitation since your contributions to BDUJST will definitely help guarantee the quality of our journal and keep the journal prestigious and outstanding, and especially attract more researchers to submit their works to our journal.</p> <p>We are thankful for your consideration and cooperation.</p> <p>Best regards,</p> <p><strong>Chairman of the editorial board</strong></p> <p>Academician Sergey V. Ablameyko - Belarusian State University, Republic of Belarus</p> <p><strong>Editor-in-Chief</strong></p> <p>Assoc. Prof. Dr. Le Van Cuong - Binh Duong University, Vietnam</p> <p>Vice-Dir. Cao Viet Hung - Binh Duong University, Vietnam</p> en-US bdujst@bdu.edu.vn (Binh Duong University) minhthuyky@bdu.edu.vn (Thuy - Nong Nguyen) Wed, 11 Jan 2023 01:04:20 +0700 OJS http://blogs.law.harvard.edu/tech/rss 60 Analysis of Torsional Vibration of Diesel Shaft System using Hard Coupling with Working Machine http://jst.bdu.edu.vn/index.php/jst/article/view/84 <p>The model is built to analyze and calculate the torsional vibration of the internal combustion engine shaft system and the generator connected by hard coupling to assess the response to the free and forced vibration of the shaft system, thereby serving as a basis for devising a suitable plan to reduce or avoid the problem of shaft torsion vibration. The results of the research include: modeling and building a separate calculation program for shaft torsion vibrations using MATLAB software; free vibration response analysis including calculating the vibration mode frequency and corresponding vibration forms; analyzing the forced vibration response including the amplitude of vibration of the degrees of freedom and the torsion stress of each element.</p> Cao Hieu Le, Van Tinh Nguyen; Van Cuong Le (Corresponding) Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/84 Wed, 11 Jan 2023 00:00:00 +0700 Practical training in the field of supply chain and logistics, serving digital transformation to promote business http://jst.bdu.edu.vn/index.php/jst/article/view/85 <p>The practical requirement is to improve the quality of training, thereby ensuring practical skills, aiming to help graduates have practical capacity and meet the digital transformation activities of businesses. However, ensuring a large number of students both have internships at businesses and practice digital skills is a difficult problem. Therefore, many training institutions have been looking for digital solutions that are successfully applied at businesses, in many different fields (including: e-commerce, sales management, distribution, purchasing, supply chain operations, logistics services ...) let the students practice. Atalink, with experience and success in deploying digital transformation solutions for thousands of businesses in the field of supply chain and B2B trading platforms, is currently a partner with many schools and academies in linking the implementation of the aforementioned activities. The article will introduce the main features of Atalink's plan to implement practical content on digital platforms in the field of supply, commercial business as well as some other applications with Binh Duong University.</p> Van Toan Ngo, Thu Thuy Nguyen, Ngoc Bich Vu; Trong Cang Vo (Corresponding) Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/85 Wed, 11 Jan 2023 00:00:00 +0700 LQR control for ball and beam system with deviated axis: simulation and experiment http://jst.bdu.edu.vn/index.php/jst/article/view/86 <p>The Ball and Beam system with Deviated Axis is a single input-multi output (SIMO) system commonly used in laboratories to test control algorithms. In this paper, we build and investigate an LQR controller in simulation. The controller demonstrates the ability to control the system balance in different placement positions. Next, we conduct a survey of the above controller in the object of the deflection bar through the control board STM32F4. Through simulation and experiment, our LQR controller has successfully controlled the system. In addition, the control parameters adjustment rules are also verified and summarized.</p> Van Chinh Pham; Duy Tan Hoang (Corresponding); Van Dong Hai Nguyen, Trung Dung Nguyen, Minh Dat Luong, Hoang Nam Duong, Tran Minh Tu Ngo, Thai An Dang Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/86 Wed, 11 Jan 2023 00:00:00 +0700 Groundwater Investigation by Combined Vertical Electrical Sounding and Magnetotelluric Sounding in Eastern Region of Mekong Delta, in the South of Vietnam http://jst.bdu.edu.vn/index.php/jst/article/view/87 <p>In the Eastern Region of Mekong Delta (South Vietnam) may contain brackish or saline water from land surface to great depth, both superficial Quaternary and deep Tertiary Alluvium. The combination of two geophysical methods, the Vertical Electrical Sounding (VES) for shallow investigation, and the Magnetotelluric Sounding (MTS) for deep investigation, provides a complete electrical image of the sedimentary series from the surface to the deep crystalline basement. It turns out very efficient to delineate the groundwater contamination in both superficial and deep aquifers. The combined results reveal a close correlation of the extent of the contamination with the paleogeomorphology of laterites, and subsequently with the paleorelief during the Tertiary and Quaternary times. Because this study area is very complicated hydrogeological structure, it is necessary to survey the current status of deep-water storage floors with geophysical measurement technologies to prevent groundwater pollution when exploiting groundwater here.</p> Giang Nguyen Van, Vu Nguyen Trong; Vung Nguyen Huy (Corresponding) Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/87 Wed, 11 Jan 2023 00:00:00 +0700 Kaizen Applications in the Garment Industry: A Case Study http://jst.bdu.edu.vn/index.php/jst/article/view/88 <p>Industry 4.0 helps companies be more flexible in the production process and the supply chain. Thereby creating quality products and services at low prices, saving time and costs in manufacturing. Kaizen is known as an advanced tool in the application of a series of methods to eliminate waste and improve the quality and efficiency of production activities in enterprises in Japan. However, in Vietnam, many businesses are still hesitant and consider the effectiveness of this tool in Vietnamese enterprises. In the article, the author mentions the implementation of Kaizen at Thuan Phuong Group. The method selected in the article includes describing the current problem of the enterprise, proposing solutions for the Kaizen application, designing and programming Kaizen software, and deploying Kaizen at the factory according to the PDCA cycle. Kaizen tools have been deployed to almost all departments at the enterprise such as the production department, mechanics, engineering, quality management, and maintenance. After 2 years of application implementation Kaizen, the total improvement time of the business increased more than 10 times, saving companies a large amount of money. The article is an example of the successful application of Kaizen in production and business activities in Vietnam. Therefore, this article helps other businesses have a more objective view of the application aspects of Kaizen in their businesses.</p> Cao Van Pham (Corresponding); Ho Van Phang Le, Huu Cong Tu Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/88 Wed, 11 Jan 2023 00:00:00 +0700 Promoting scientific research at universities in Vietnam http://jst.bdu.edu.vn/index.php/jst/article/view/80 <p>Scientific research plays an important role in contributing to the improvement of the training quality and creating high-quality human resources for meeting social needs. The university is a place for training and fostering human resources at undergraduate and graduate levels, and is also a scientific research facility. The university’s scientific research is obviously part of the process of improving the quality of education and training. This article aims to analyze the advantages and disadvantages of the practical scientific research at several universities in Vietnam nowadays, and thus determining the causes and proposing several solutions for promoting activities as such at universities in Vietnam in general.</p> Thanh Phuoc Cao; Quoc Cuong Phan (Corresponding); Van Cuong Le Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/80 Wed, 11 Jan 2023 00:00:00 +0700 Contribution of Ho Chi Minh's style to enhance and fulfill the personalities of officers and members of Vietnamese Communist Party http://jst.bdu.edu.vn/index.php/jst/article/view/81 <p>Ho Chi Minh's style includes valuable characteristics of Ho Chi Minh's personality, methods, manners, ethics and lifestyle, associated with the brilliant intellectual personality, pure morality, and simple lifestyle of a leader of the nation. That style is both national and modern, scientific and revolutionary, noble and practical. Ho Chi Minh's style is expressed in all areas of his life and activities, through manifestations of frugality and integrity; a harmonious life combining Eastern and Western cultures; and nature respect and attachment. All of these manifestations have always been paid special attention by Ho Chi Minh and implemented consistently, throughout his whole life and activities of revolution, with the enthusiasm of a faithful communist who devotes to "serve the fatherland and the people", striving for the goal of national independence and socialism. Ho Chi Minh's style also contributes to fostering and perfecting the personality of current cadres and party members.</p> Van Thuyen Nguyen (Corresponding); Thi Thuy Giang Nguyen Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/81 Wed, 11 Jan 2023 00:00:00 +0700 Supreme ultimate sexagenary cycle contribute activate human potential forecasting capacity http://jst.bdu.edu.vn/index.php/jst/article/view/82 <p>The article presents the basic content of the new method of decoding the “Luc Hao Sutra”, improving forecasting accuracy, reducing gossipy, and enhancing detailed judgment, activate human forecast potential called the "Forecasting According to Supreme Ultimate Sexagenary Cycle" method. The article consists of 3 parts: Purpose and meaning of “Supreme Ultimate Sexagenary Cycle”; Theoretical basis; Some applications.</p> Ngoc Thach Nguyen (Corresponding) Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/82 Wed, 11 Jan 2023 00:00:00 +0700 Can Gio villagers’ belief in whale worship be traced to The Tomb of Ong Thuy Tuong http://jst.bdu.edu.vn/index.php/jst/article/view/83 <p>Can Gio district is directly under Ho Chi Minh city - the major economic and cultural hub of the country. As a result, Can Gio's folk beliefs combine the characteristics of the South with those of the Central area. The sea has influenced and developed values in the material and spiritual culture of the Can Gio community since antiquity. The marine cultural aspect has a clear influence on the beliefs and faiths of the Can Gio people, as they are dependent on the sea for their livelihood. In which, the whale-worshipping belief is the most popular. The whale-worshing belief is a typical cultural activity of the residents here, containing many profound human values, directing people to the good things in life. The whale-worshing belief is clearly described through The Tomb of Ong Thuy Tuong relic in Can Thanh town, Can Gio district. The Tomb of Ong is both a famous spiritual place worshiping the skeleton of Whale about 12m long and a place that attracts a large number of tourists when they arrive in Can Gio.</p> Quoc Dao Du (Corresponding) Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/83 Wed, 11 Jan 2023 00:00:00 +0700 Factors affecting the effectiveness of state budget management in Nam Can district, Ca Mau province http://jst.bdu.edu.vn/index.php/jst/article/view/74 <p>The district budget is part of the state budget system and is also an important financial instrument contributing to socio-economic development. However, there are still many problems in the commune budget management. This study aims to determine the factors and their influence on effective budget management, thereby providing solutions for effective budget management in Nam Can district, Ca Mau province. The study used methods such as: assessing the reliability of Cronbach's Alpha scale, exploratory factor analysis (EFA), multiple regression analysis with a sample of 242 leaders and civil servants, non-specialist officials. commune level and part-time hamlet officials working in the field of finance - budget in units under the People's Committee of Nam Can district. The results showed that the financial management capacity, the object of management, the system of legal documents, information and information technology, the organization of the local budget management apparatus all had a positive impact on the effectiveness of the budget management. Therefore, in order to improve the efficiency of budget management, local authorities need to focus on improving these factors.</p> Hoang Anh Le (Corresponding); Thanh Nha Tran Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/74 Wed, 11 Jan 2023 00:00:00 +0700 Factors affecting the work stress of employees at VNPT Binh Duong Business Center http://jst.bdu.edu.vn/index.php/jst/article/view/75 <p>The objective of the study is to study the factors affecting the work stress of employees at VNPT, Binh Duong province; from there, providing solutions to contribute to controlling work stress for employees at VNPT in Binh Duong province. Based on a primary data set of 150 observations who are current employees who are working full-time and have worked for 6 months or more at VNPT, Binh Duong province, sampling is done by convenience method. Data processing methods used in this study include: Descriptive statistics (frequency, absolute number comparison, and relative number (%)), EFA exploratory factor analysis, regression analysis. Multivariate regression with the help of SPSS software. The results of multivariable regression analysis showed that 05 factors (F1, F2, F3, F4 and F7) had regression coefficients with Sig. less than 1% and 5% significance level, which means that these variables have an effect on Employee stress at VNPT Binh Duong province, the factors are ranked in descending order of impact including: : Work pressure (β=0,775); Relationship with colleagues (β=0,394); Role conflict (β=0,223); Job stability (β=0,240); Time pressure (β=0.069).</p> Van Hoang Lam Huynh (Corresponding) Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/75 Wed, 11 Jan 2023 00:00:00 +0700 Financial Technology: Implementation Experience in Some Countries and Policy Implications http://jst.bdu.edu.vn/index.php/jst/article/view/76 <p>Digital financial services have flourished from simple peer-to-peer money transfers to advanced financial technologies that make use of the latest technologies in digital banking, distributed ledgers, and central bank digital currencies. Governments, corporations, and individuals may all benefit from new digital financial services. Expanding inclusive economic growth and addressing the Sustainable Development Goals can be accomplished through the development of inclusive digital financial services in an environment with the right regulatory framework and policies. The number of financial technology (Fintech) companies globally has grown, attracting billions of dollars new investments in recent years. However, Fintech companies remain relatively small compared with traditional financial service providers in developed countries. In contrast, Fintech services and products are becoming economically important in some developing countries. The article summarizes the experience of implementing Fintech in some high-ranked Fintech countries such as the United States, United Kingdom, Singapore, Australia, China and Indonesia; thereby providing policy implications for regulators in Vietnam.</p> Viet Hieu Cao; Minh Hai Nguyen (Corresponding) Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/76 Wed, 11 Jan 2023 00:00:00 +0700 Theoretical and practical issues of priority industrial development -Spearhead industry in Binh Duong province today http://jst.bdu.edu.vn/index.php/jst/article/view/77 <p>After a quarter of a century of re-establishing the province, Binh Duong has grown strongly to become one of the leading provinces in industrial development, achieving the criteria of industrialization and modernization, leading the country in many aspects, making significant contributions. into the national budget revenue. The above results confirm the creative application of the Central Government's policy lines, in accordance with the specific conditions of the province. Within the research limit, the authors will analyze theoretical and practical issues through the process of developing priority industry - spearhead industry of the province, thereby proposing and recommending some solutions for industrial development. Binh Duong province's industry is sustainable and suitable for the new context.</p> Thi Thuy Linh Pham; Van Quang Nguyen (Corresponding); Thi Thom Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/77 Wed, 11 Jan 2023 00:00:00 +0700 Development of digital banking in Vietnam - Situation and solutions http://jst.bdu.edu.vn/index.php/jst/article/view/78 <p>With the trend of global integration, especially in the industrial revolution 4.0, digital transformation is an inevitable trend that commercial banks are trying to implement in order to become the leading digital bank in Vietnam. The rapid development of modern products and services has brought many conveniences to consumers and is the foundation for the development of the digital economy and digital society. This article focuses on clarifying the need to change the operating model from a traditional bank to a digital one, and analyzes the advantages and disadvantages of current regulations and difficulties in terms of financial resources. for the development of digital banking in Vietnam. The study uses secondary data from the State Bank of Vietnam, domestic and foreign studies on digital banking development. The research results show that the investment by commercial banks to promote the development of digital banking is the main trend in the coming time and brings benefits to the bank itself, customers as well as to the economy. . Besides advantages, there are also disadvantages, so the article proposes some recommendations to remove difficulties and thereby promote the development of digital banking activities in Vietnam.</p> Thi Cuc Phan, Cam Nhung Vu; Minh Xuan Phan (Corresponding) Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/78 Wed, 11 Jan 2023 00:00:00 +0700 Situation and some solutions to improve the efficiency of State management of foreign direct investment (FDI) in Vietnam http://jst.bdu.edu.vn/index.php/jst/article/view/79 <p>In the trend of international economic globalization and the strong scientific and technological revolution 4.0, for developing countries like Vietnam, while the accumulated capital in the country is still limited, all countries are It is necessary to attract investment capital from abroad to meet the investment demand for production and business development, transfer of science and technology, accelerate economic growth, create jobs and increase economic growth income for workers. By collecting published data, statistics, analysis, synthesis, comparison, the article assesses the current situation of attraction and state management of foreign direct investment in Vietnam in the period 2010-2020, points out shortcomings, and on that basis proposes some solutions. practical to improve the efficiency of foreign direct investment management in the coming period.</p> Thanh Cai Nguyen Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/79 Wed, 11 Jan 2023 00:00:00 +0700 Diversity of medicinal plant resources in Tho Son village, Hon Dat district, Kien Giang province http://jst.bdu.edu.vn/index.php/jst/article/view/90 <p>Tho Son village - Hon Đat district - Kien Giang province has a diverse and abundant plant resources. The mountainous vegetation has created many natural landscapes and these forests are resident to a variety of rare and precious forest animals and plants. From September 2021 to July 2022, the research team have established six survey routes to diversify species composition. 291 medicinal species belong to 234 genera, 88 families, 2 divisio of vascular plants that are Polypodiophyta and Magnoliophyta have been identified. Seven of the identified species are listed in Medicinal plants in Vietnam's Red List", "Vietnam Red Book” (2007) and four medicinal plants are listed in the Decree 84/2021/ND-CP which is mentioned the limitation of exploitation and trade for commercial purposes for the flora of special use.</p> Van Ut Le (Corresponding); Thi Loc Nguyen, Thi Linh Tran, Thi Huyen Nguyen, Nguyen Duyen Thuong Truong, Minh Anh Nguyen Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/90 Wed, 11 Jan 2023 00:00:00 +0700 Botanical characteristics, and pharmacological properties of Alangium salviifolium (L.f.) Wang.: A review http://jst.bdu.edu.vn/index.php/jst/article/view/89 <p>Alangium salviifolium (L.f.) Wang. (Alangiaceae family) is a valuable medicinal herb of Vietnam, but this herb isn't ettended. To contribute a premise for future studies, the authors have reviewed documents about Alangium salviifolium (L.f.) Wang., such as botanical, chemical components (alkaloids, flavonoids, streroids, terpenoids, tannins, and polyphenols), biology activities (antibacterial, antifungal, antioxidant, anti-inflammatory, analgesic, anti-cancer, cytotoxic, anti-peptic ulcer, hepatoprotective, hypoglycemic, diuretic...). This review contributes to the identification and orientation for future studies on medicinal plant of Alangium salviifolium (L.f.) Wang..</p> Thi Le Thuy Dang; Hong Huong Ha Ly (Corresponding); The Nhut Nguyen, Thi Hong Yen Nguyen, Khoi Nguyen Vo, Thi Ngoc Diep Vo, Tran Thanh Nguyen Le, Hien Vinh Vo Copyright (c) 2023 Tập san Khoa học và kỹ thuật trường Đại học Bình Dương http://jst.bdu.edu.vn/index.php/jst/article/view/89 Wed, 11 Jan 2023 00:00:00 +0700