Zobrazeno 1 - 10
of 525
pro vyhledávání: '"Minh Hoang Nguyen"'
Autor:
Duyen Thi My Huynh, Linh My Le, Lam Thanh Nguyen, Trung Ho Nhan Nguyen, Minh Hoang Nguyen, Khang Tran Vinh Nguyen, Khanh Quoc Tran, Trung Le Quoc Tran, Minh-Ngoc Thi Le, Huynh Nhu Mai
Publikováno v:
Pharmacia, Vol 71, Iss , Pp 1-14 (2024)
Mangiferin is a xanthonoid found in Mango leaves in abundance with many effects as a hypoglycemic, antioxidant, and anti-inflammatory agent, plant metabolite, and so on. However, nowadays, mango leaves are merely a waste product in Vietnam. To take a
Externí odkaz:
https://doaj.org/article/863d1a965fa64c478d5184ab1899a59a
Publikováno v:
IEEE Access, Vol 12, Pp 51193-51207 (2024)
Active front-end (AFE) rectifiers are a well-known solution in industries due to bidirectional power flow, sinusoidal line currents, and dc-link voltage adjustment. Typically, in three-phase AFE rectifiers, the power is distributed evenly among the p
Externí odkaz:
https://doaj.org/article/feb4f43722b844f69b907c902ebd1ee5
Publikováno v:
IEEE Access, Vol 12, Pp 5864-5881 (2024)
Nowadays, active rectifiers are increasingly used, particularly in grid-connected applications. The high efficiency and reliability of active rectifiers become crucial for increasing the system performance. Due to the lack of model predictive control
Externí odkaz:
https://doaj.org/article/dec50004e44847aba0e0682b143b4589
Publikováno v:
IEEE Access, Vol 11, Pp 88686-88702 (2023)
In a power electronic system, a control objective is to improve efficiency and reduce thermal stress in converters in order to increase the lifetime of devices. To achieve this, minimizing losses is crucial. The objective of this research paper is to
Externí odkaz:
https://doaj.org/article/f7772458dcab4296865676c7f18baa56
Publikováno v:
Machines, Vol 12, Iss 1, p 66 (2024)
Three-phase AC/DC pulse-width-modulated (PWM) converters have been widely employed in various renewable energy systems and industrial applications, which require a high-efficiency power converter operation. This article proposes a technique to reduce
Externí odkaz:
https://doaj.org/article/b8eec5a0377f4a7aac10c33fd36e06fb
Publikováno v:
Machines, Vol 11, Iss 12, p 1053 (2023)
Unequal thermal stress among the phase legs of a multiphase converter leads to a reduction in the useful lifespan and reliability of that converter in general. Increasing the converter’s lifespan by relieving the stressed phase leg, which suffers e
Externí odkaz:
https://doaj.org/article/0d1152cd4c244e41a1a5bc17e5a40112
Publikováno v:
Machines, Vol 11, Iss 12, p 1054 (2023)
Discontinuous pulse-width-modulation (DPWM) methods have been extensively used in the industrial area to reduce overall losses, which decreases the corresponding thermal stress on the power switches of converters. However, local thermal overload can
Externí odkaz:
https://doaj.org/article/28a57ba5b3a24c358e236576da8c327c
Publikováno v:
Machines, Vol 11, Iss 8, p 829 (2023)
Due to the lack of comparative studies between discontinuous pulse-width modulation and model predictive control methods for reducing switching losses in two-level three-phase voltage source inverter, a comparative analysis of a generalized discontin
Externí odkaz:
https://doaj.org/article/238ae8a4d53e4316a5e7a307f7153034
Publikováno v:
Molecules, Vol 28, Iss 14, p 5381 (2023)
Heat storage technologies are essential for increasing the use of solar energy in the household sector. Their development can be achieved by designing new storage materials; one way is to impregnate a porous matrix with hygroscopic salts. In this art
Externí odkaz:
https://doaj.org/article/17ac4aa454934f68a37cdacd1c332dad
Autor:
Vinh Hoang Le, Minh Hoang Nguyen
Publikováno v:
Journal of Eastern European and Central Asian Research, Vol 9, Iss 3 (2022)
Vietnam has faced the long-lasting COVID-19 outbreak, which has imposed a negative impact on corporate activities, since 2020. This study aims to examine how the COVID-19 outbreak has influenced the risk-taking behavior of companies in Vietnam, inves
Externí odkaz:
https://doaj.org/article/e796c704c1de477ba9803fd30c26317e