Nguyen Thi Hai Yen

Hybrid Bayesian–grid search optimization for concrete strength prediction

Hung P. Thach, Nguyen Thi Hai Yen

The accurate prediction of concrete compressive strength is critical for ensuring structural reliability and optimizing material use. Recent advancements in machine learning (ML) offer promising alternatives in improving prediction accuracy and efficiency. However, many studies overlook the critical role of systematic hyperparameter …

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ELECTRONIC PHASES OF THE IONIC HUBBARD MODEL WITH COULOMB DISORDER

Nguyen Thi Hai Yen, Hoàng Anh Tuấn, Lê Đức Anh

We investigate the effects of Coulomb disorder on the half-filled ionic Hubbard model within the framework of dynamical mean-field theory (DMFT), using the equation-of-motion method as the impurity solver, combined with typical medium theory (TMT). In contrast to conventional disordered Hubbard models, …

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Teachers’ and students’ perceptions about the Medical English Program at Haiphong University of Medicine and Pharmacy

Tran Thi Hoa, Nguyen Thi Hai Yen

Introduction: The content-based Medical English Program has been applied at Hai Phong University of Medicine and Pharmacy since the academic year 2018-2019. This is a part of the Health Professional Education and Training for Health System Reforms Project (HPET). It is important …

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Private Sector Development Coupled with the Promotion of Environmental Enterprises in Vietnam in the Context of Green Growth

Nguyen Thi Hai Yen, Ho Thi Hien, Le Thi My Tam, Tran Phuong Thao et autres

This article analyzes the relationship between private sector development and the promotion of environmental enterprises in Vietnam in the context of green growth. On the basis of synthesized macroeconomic data for the 2015-2024 period, policy documents on green growth, environmental protection, the …

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Đa thuốc và tình trạng dễ bị tổn thương ở bệnh nhân nội trú cao tuổi tại Việt Nam

Nguyen Thi Hai Yen, Lê Thị Loan, Trần Thị Nga, Nguyễn Thị An et autres

Bối cảnh: Tình trạng dễ tổn thương và đa thuốc là hai hội chứng lão khoa quan trọng thường xuất hiện đồng thời và có thể làm trầm trọng thêm các kết cục bất lợi ở người cao tuổi. Mặc dù mối …

Implementing Social Security Policy in the Current Context: A Case Study of Ho Chi Minh City, Vietnam

Đinh Trung Thanh, Nguyen Thi My Huong, Tran Viet Quang, Ton Nu Hai Yen et autres

Ensuring the implementation of social security policies in Ho Chi Minh City is not only a requirement for the central political system but also for local authorities, especially in promoting the role of resource mobilization and ensuring the implementation of policies. The …

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Highly electrochemical stability of PEO-based polymer electrolytes for lithium-metal batteries

Nguyen Thi Hai Yen, Pham Xuan Thao, V. Hung

Polyethylene oxide (PEO)-based polymer electrolytes, incorporating lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and succinonitrile, are highly promising for solid-state lithium-ion batteries due to their superior ionic conductivity and electrochemical stability. Electrochemical impedance spectroscopy (EIS), electrochemical stability window (ESW) are used in this study to assess …

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Solutions to Ensure Efficient Transportation for Multiphase Gas - liquid Waxy Flow Through the RC - DM - RC - 4 - RC - 4 - RP - 1 Pipelines at Nam Rong - Doi Moi Oilfield

Van Thinh Nguyen, Nguyen Thi Hai Yen

The Nam Rong - Doi Moi oilfield is located between Block 09 - 3 and Block 09 - 1 in the Cuu Long Basin, on Vietnam's continental shelf. It is operated by the Vietnam - Russia Joint Venture (Vietsovpetro) and has been …

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Bayesian updating of fatigue crack growth parameters for failure prognosis of miter gates

Anita Brown, Brian Eick, Travis B. Fillmore, Nguyen Thi Hai Yen

Navigable waterways play a vital role in efficient transportation of millions of tons of cargo annually. Inland traffic must pass through a lock, which consists of miter gates. Failures and closures of these gates can significantly disrupt waterborne commerce. Miter gates often …

Pain management and related factors in pediatric patients after congenital heart surgery at Hanoi Heart Hospital

Nguyen Thi Hai Yen, Sinh Hien Nguyen, Tiến Dũng Nguyễn, Thanh Hung Ngo

Introduction: Congenital heart disease (CHD) is a common birth defect, affecting approximately 0.2–1% of live births. Surgery is a primary treatment method, especially when medical or interventional approaches fail. Postoperative pain remains a significant issue, impacting both recovery and the psychological state …

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Tilt Stability for Nonlinear Programs under Relaxed Constant Rank Constraint Qualification

Nguyễn Huy Chiêu, Nguyễn Thị Quỳnh Trang, Nguyen Thi Hai Yen

This paper investigates the tilt stability of local minimizers for nonlinear programs under the relaxed constant rank constraint qualification in finite dimensions. By employing a neighborhood primal-dual approach and extending calculus rules for subgradient graphical derivative, we obtain some pointbased characterizations of …

Research on evaluating crude oil sources to meet the quality of Jet A-1K fuel production for fighter aircraft

Hung T. Le, Tien D. Bui, Huyen Le, Duong Du Bui et autres

The article presents a study evaluating the current crude oil feedstock available at BSR for producing Jet A-1K fuel for fighter aircraft. Unlike Jet A-1 fuel, Jet A-1K is a specialized fuel produced according to stringent standards for quality, stability, and performance …

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