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Wyszukujesz frazę "Trung, Kien Nguyen" wg kryterium: Autor


Wyświetlanie 1-8 z 8
Tytuł:
Effect of heat transfer correlation on wet cylinder liner temperature distribution when converting an old engine into a turbocharged engine
Autorzy:
Trung, Kien Nguyen
Powiązania:
https://bibliotekanauki.pl/articles/1955004.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heat transfer
correlation
turbocharged engine
cylinder liner
distribution
Supercharging
Opis:
For conventional diesel engines, two of the most widely used global correlations are due to Woschni and Hohenberg. Besides, the modern diesel engines used a new heat transfer coefficient correlation was proposed by Finol and Robinson. In Vietnam, improving engine power density is a trend of improving non-turbocharged base engines by using a supercharging system with exhaust gas energy recovery. Increasing engine power by the turbocharger is limited for two reasons: mechanical stress and thermal stress of the components surrounding the combustion chamber. In general, the heat transfer coefficient has a major effect on heat transfer rate, especially during the combustion process. So, the purpose of this study is to compare the cylinder distribution results from the simulation using the equations of Woschni and Hohenberg and compare to the experiment results when converting an old heavy-duty engine into a turbocharged engine. Results show that the cylinder distribution using Hohenberg’s correlation has a good agreement with the experiment results, especially in the case of a turbocharged engine.
Źródło:
Archives of Thermodynamics; 2021, 42, 3; 159-172
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enterprises characteristics and lean outcome: an empirical evidence from Vietnam manufacturing enterprises
Autorzy:
Nguyen, Dat-Minh
Duong, Trung-Kien
Powiązania:
https://bibliotekanauki.pl/articles/2204115.pdf
Data publikacji:
2022
Wydawca:
STE GROUP
Tematy:
Lean manufacturing
challenge features
success factors
Vietnam Manufacturing enterprises
Opis:
Lean Manufacturing is a popular method to achieve the improvement on productivity, quality, cost, and delivery for organizations. This approach focuses on the systematics to eliminate wastes and non-value added activities from the production. This study mentions the successes and challenges of Vietnam manufacturing enterprises for adapting and transformation for Lean Manufacturing approaching. The aim of this study is to analyze the characteristics of Vietnam enterprises that influencing Lean outcome and present critical factors for overcoming obstacles to successful Lean implementation in Vietnam local enterprises. This paper uses case-based research to collect data through multiple cases that applied Lean to drive the findings. A combination of comprehensive literature review and interview key persons at case study was employed in this study. This study also highlights the strong potential of Lean implementation initiatives in affecting organizational performance improvements.
Źródło:
Management Systems in Production Engineering; 2022, 2 (30); 98--108
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A four-phase framework for Lean implementation in small and medium enterprises
Autorzy:
Minh, Nguyen Dat
Kien, Duon Trung
Powiązania:
https://bibliotekanauki.pl/articles/2064453.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Wydział Ekonomii i Zarządzania
Tematy:
LEAN application
LEAN manufacturing
LEAN outcome
small and medium enterprise
SME
LEAN
aplikacja LEAN
narzędzia LEAN
LEAN zastosowanie
małe i średnie przedsiębiorstwa
Opis:
Although Lean has been known and applied in both theoretical and practical on around the world for many years, a deeper understanding of Lean tools, principles implementation, and a roadmap to successfully apply is needed. In the context of Small and medium enterprises (SME), it is very difficult for local enterprises to apply synchronization Lean tools, techniques, and principles because of limited resources in manpower, technology, and management capability. Through the case-based study, this paper proposed the four-phase roadmap for Lean application in SMEs. An analysis of methods from a literature review of Lean implementation was conducted in order to identify the phases of the roadmap. Then, six SMEs in Vietnam that applied Lean were chosen to collect data and analyze the applicability and how Lean tools are successful implemented in the cases to confirm the findings.
Źródło:
Management; 2021, 25, 1; 259--277
1429-9321
2299-193X
Pojawia się w:
Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The extensive 1-median problem with radius on networks
Autorzy:
Nhan, Tran Hoai Ngoc
Hung, Nguyen Thanh
Nguyen, Kien Trung
Powiązania:
https://bibliotekanauki.pl/articles/29519649.pdf
Data publikacji:
2024
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
extensive facility
median problem
tree
convex
Opis:
The median location problem concerns finding locations of one or several new facilities that minimize the overall weighted distances from the existing to the new facilities. We address the problem of locating one new facility with a radius r on networks. Furthermore, the radius r is flexible and the objective function is the conic combination of the traditional 1-median function and the value r. We call this problem an extensive 1-median problem with radius on networks. To solve the problem, we first induce the so-called finite dominating set, that contains all points on the underlying network and radius values which are candidate for the optimal solution of the problem. This helps to develop a combinatorial algorithm that solves the problem on a general network G = (V,E) in O(|E||V|3) time. We also consider the underlying problem with improved algorithm on trees. Based the convexity of the objective function with variable radius, we develop a linear time algorithm to find an extensive 1-median with radius on the underlying tree.
Źródło:
Opuscula Mathematica; 2024, 44, 1; 135-149
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy benchmarking management for beer and beverage industry in Vietnam
Autorzy:
Minh, Nguyen Dat
Kien, Duon Trung
Hoang, Truong Huy
Powiązania:
https://bibliotekanauki.pl/articles/2064458.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Wydział Ekonomii i Zarządzania
Tematy:
energy efficiency
energy benchmarking
specific energy consumption
beer industry
beverage industry
Vietnam
efektywność energetyczna
benchmarking
zużycie energii
przemysł piwny
Wietnam
Opis:
The purpose of this paper is to introduce basic principles of benchmarking and explain the methodology to set the specific energy consumption (SEC) target for the beer and beverage industry in Vietnam to evaluate performance, support decisions, and energy efficiency (EE) improvement. Energy benchmarking management method is used to assess EE performance. This study also presents the SEC methodology as a guide for Vietnam enterprises in the brewery sector on how to manage the EE consumption and to comply with the legal energy consumption quota in the beer and beverage production. The study supports the enterprise in how to determine the SEC and support for national EE is essential to the promotion and deployment of practical energy saving solutions and compliance with the SEC through a suitable energy-saving target. In addition, this paper is introducing the original SEC calculation in three cases of production in the beer and beverage industry including producing beer only, producing beverage only, and producing both beer & beverage in the context of Vietnam.
Źródło:
Management; 2021, 25, 2; 36--58
1429-9321
2299-193X
Pojawia się w:
Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Digital Leadership on Organizational Performance: A Study in Vietnams coal Mining Companies
Autorzy:
Le, Van Chien
Nguyen, Duc Thang
Pham, Kien Trung
Nguyen, Thi Hoai Nga
Powiązania:
https://bibliotekanauki.pl/articles/27323234.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
digital transformation
digital leadership
digital transformation strategy
digital skills
organization performance
coal mining company
transformacja cyfrowa
strategia
górnictwo
Opis:
Under the influence of the 4th industrial revolution and the impact of the Covid-19 pandemic, digital transformation is rapidly taking place in all aspects of society. For businesses, digital transformation is an essential and objective trend for their sustainability and development. The purpose of digital transformation for businesses is to enhance operational efficiency through factors such as accelerating market speed, gaining competitive advantage, driving revenue growth, increasing labor productivity, and expanding customer attraction and retention. Numerous studies have indicated that the process of digital transformation in businesses is influenced by leadership and digital transformation strategies, and digital transformation has an impact on business performance. This study aims to identify the relationship between digital leadership and the operational efficiency of coal mining companies in Vietnam, with the mediating role of digital transformation strategies. Additionally, the study examines the moderating role of digital skills on the relationship between digital transformation strategies and the operational efficiency of the organizations. The research surveyed 111 employees and workers currently working in coal mining companies in Vietnam. Through analysis and hypothesis testing, the results showed that digital leadership does not have a direct impact on coal companies’ operational efficiency. However, it indirectly affects business performance through the mediating role of digital transformation strategies. The study's findings also revealed that the digital skills of employees play a moderating role in enhancing the relationship between digital transformation strategies and the operational efficiency of the organization.
Źródło:
Inżynieria Mineralna; 2023, 2; 121--130
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enhancing Workplace Safety: A Comprehensive Action Plan for Duong Huy Coal Company (2021– 2025)
Autorzy:
Nguyen, Thi Hoai Nga
Nguyen, Duc Thang
Le, Dinh Chieu
Le, Van Chien
Pham, Kien Trung
Powiązania:
https://bibliotekanauki.pl/articles/27323288.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
workplace safety
safety standards
safety solutions
extractive industries
Duong Huy coal company
bezpieczeństwo i higiena pracy
Wietnam
przemysł
Opis:
Workplace safety is of paramount importance in industries such as coal mining, where accidents and occupational illnesses can result in significant human and economic costs. This study aims to develop an action plan to improve safety standards at Duong Huy Coal Company from 2021 to 2025. A comprehensive survey involving 93 safety managers and 379 workers from various production sites was researched to gather insights and opinions on safety priorities. Focus group discussions and expert consultations were employed to assess the current safety situation, identify challenges, and develop coherent safety solutions. Based on the survey results, the proposed action plan focuses on the following objectives: reducing workplace accidents by 20-25% annually, progressing towards zero accidents in the following years, and increasing productivity and benefits for both workers and the company. The plan also emphasizes the role of company leadership in widely communicating their commitment to safety and the need for individual units within the company to proactively plan, budget, and implement safety measures following their functions and responsibilities. Collaboration with relevant state agencies, mass mobilization campaigns, and the application of science and technology in safety and occupational health will further contribute to the enhancement of workplace safety at Duong Huy Coal Company.
Źródło:
Inżynieria Mineralna; 2023, 2; 205--208
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Promoting Gender Equality and Awareness in the Vietnamese Mining Sector: Perceptions, Challenges, and Policy Recommendations
Autorzy:
Pham, Minh Hang
Pham, Thi Luong
Nguyen, Thi Hoai Nga
Pham, Kien Trung
Powiązania:
https://bibliotekanauki.pl/articles/27323284.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
gender equality
gender knowledge
gender perspective
extractive industries
mining sector
płeć
zatrudnienie
górnictwo
Wietnam
Opis:
Females in the industry nowadays have been offered many opportunities to develop their careers. However, the chances are not the same in different areas or sectors. This study investigated the perceptions and understanding of gender-related issues in the mining sector among potential young workers and industry experts in Vietnam. The study employs Oxfam's Gender Impact Assessment Guidelines for extractive industries and the Convention on the Elimination of All Forms of Discrimination Against Women - CEDAW's Women's Economic and Social Rights Framework to assess gender-related issues in the mining sector. A survey of 207 students in Hanoi was conducted, besides focus group discussions and in-depth interviews with gender and mining experts. Findings reveal significant differences in knowledge and awareness of gender issues between students, emphasizing the need to integrate gender knowledge into specialized fields such as mining. In addition, professionals working solely in the mining sector demonstrated a lack of sensitivity to gender issues. Consequently, the study recommends capacity building, seminars, and exchanges to help mining professionals incorporate a gender perspective into their activities. Current policies exhibit gender neutrality, indirectly excluding women's participation and compromising men's safety in the mining sector. The study proposes policy recommendations for enhancing the protection of workers in the mining industry and promoting gender equality. These include incorporating gender perspectives into relevant laws, raising awareness of gender issues among policymakers and professionals, and increasing the mining sector's presence in the media to encourage youth to pursue careers in this field.
Źródło:
Inżynieria Mineralna; 2023, 2; 235--238
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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