Nguyễn Hồng Sơn

ORCID: 0000-0003-4665-0984
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About
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Research Areas
  • Advanced machining processes and optimization
  • Advanced Machining and Optimization Techniques
  • Advanced Surface Polishing Techniques
  • Research studies in Vietnam
  • Manufacturing Process and Optimization
  • Engineering Technology and Methodologies
  • Nonlinear Differential Equations Analysis
  • Tunneling and Rock Mechanics
  • Banking stability, regulation, efficiency
  • Multi-Criteria Decision Making
  • Drilling and Well Engineering
  • Advanced Measurement and Metrology Techniques
  • Topological Materials and Phenomena
  • Data Quality and Management
  • Quantum and electron transport phenomena
  • Corporate Finance and Governance
  • Aerospace and Aviation Technology
  • Advanced Aircraft Design and Technologies
  • Mathematical and Theoretical Epidemiology and Ecology Models
  • Stability and Controllability of Differential Equations
  • Sustainable Supply Chain Management
  • Metallurgy and Material Forming
  • Hydraulic Fracturing and Reservoir Analysis
  • Oil and Gas Production Techniques
  • Topic Modeling

Hanoi University of Industry
2014-2023

National Hospital for Neurology and Neurosurgery
2022

National Institute Of Hygiene And Epidemiology
2006-2022

Vietnam National University, Hanoi
2013-2022

University College London
2022

Posts and Telecommunications Institute of Technology
2020-2021

Pham Ngoc Thach Hospital
2021

Vietnam Posts and Telecommunications Group (Vietnam)
2020-2021

VNU University of Science
2020

Tay Bac University
2020

Typhoid fever remains a serious problem in developing countries. Current vaccines are licensed for individuals who 5 years old or older. A conjugate of the capsular polysaccharide (CP) Salmonella enterica serovar Typhi (Vi) bound to recombinant exoprotein Pseudomonas aeruginosa (Vi-rEPA) enhanced Vi immunogenicity and protected 2- 5-year-olds Vietnam. In this study, Vi-rEPA was evaluated use infants. total 301 full-term Vietnamese infants received Expanded Program on Immunization (EPI) alone...

10.1128/cvi.00532-10 article EN Clinical and Vaccine Immunology 2011-03-17

Machine tools are indispensable components and play an important role in mechanical manufacturing. The equipment of machine has a huge effect on the operational efficiency businesses. Each tool type is described by many different criteria, such as cost, technological capabilities, accuracy, energy consumption, convenience operation, safety for workers, working noise, etc. If selection only based one or several it will be really easy to make mistakes, which means not possible choose real best...

10.21303/2461-4262.2023.002771 article EN EUREKA Physics and Engineering 2023-03-22

Welding is a method to join parts together by stable connection. used in many different fields. The limitations of manual welding methods are gradually eliminated when using robots. selection robot has great influence on the efficiency process. Choosers (customers) often encounter problems choosing among products that available market. During this study, seven types robots were given make choice including AR700, AR900, AR1440, AR1730, AR2010, MA3120, VA1400 II. These options commonly...

10.15587/1729-4061.2023.269026 article EN Eastern-European Journal of Enterprise Technologies 2023-02-28

Powder Mixed Electro-Discharge Machining (PMEDM) is a non-traditional machining process. This method used more and to machine complex surfaces, parts made from materials with high hardness. Three indispensable components in PMEDM are powder, dielectric fluid electrode. These have great influence on the efficiency of study was conducted choose best types for all three mentioned above. The numbers powder types, electrode material considered were ten, seven, respectively. weight each criterion...

10.18178/ijmerr.13.3.315-324 article EN cc-by-nc-nd International Journal of Mechanical Engineering and Robotics Research 2024-01-01

Excavators are considered an indispensable component on construction sites for performing heavy-duty tasks, reducing labor workers and speeding up progress. Therefore, the selection of excavator plays a crucial role in projects involving soil, rock, coal, etc. come different forms, which, based wheel type, there two main categories: wheeled excavators tracked excavators. Within each type or excavator, various models market with technical specifications. For example, excavators, parameters...

10.35741/issn.0258-2724.60.1.7 article EN Journal of Southwest Jiaotong University 2025-03-05

By using the data collected from whole 44 banks in banking system Vietnam 2010-2012, authors try to investigate impacts of ownership structure on bank performance Vietnamese system. Research results show that capital concentration and private have positive impact profitablity, nonperforming loan ratio has negative relation with banks' profitability. Besides, research are also consistent previous researches (Nguyen, Tran & Pham, 2014) correlation corporate governance Vietnam. The findings...

10.5430/ijfr.v6n4p123 article EN cc-by International Journal of Financial Research 2015-08-19

The surface roughness model for predicting during machining is built in order to deal with time constraints of adjusting and testing. This study aims achieve this purpose. 9XC steel turning experiment performed on a CNC lathe the cutting tool Titanium Nitride-coated. input parameters selected test matrix include velocity, feed rate, depth cut nose radius. experiments were carried out based Central Composite Design (CCD) 29 trials. analysis results using Minitab software reveals that rate...

10.3934/matersci.2021001 article EN cc-by AIMS Materials Science 2021-01-01

The average transmit power and coverage probability (Pcov) of uplink energy harvesting-enabled long-range networks are investigated in the present paper. Particularly, we model end-device (EDs) according to homogeneous Poisson point process while beacon is randomly distributed on circle middle network. All EDs rely harvested perform their operations transmissions. Under this context, upper bound an derived closed-form expression. signal-to-noise-ratio condition given expression as well....

10.1080/24751839.2023.2281144 article EN cc-by Journal of Information and Telecommunication 2023-11-19

The report presents method and results of experiments in wind tunnel to determine aerodynamic characteristics 3D wings by measuring pressure distribution on the wing surfaces. Simultaneously, a numerical using sources doublets distributed panel elements surface also is carried out calculate flows around wings. This computational allows solving inviscid problems for with thickness profile. experimental are compared each other verify built program that permits extend range applications...

10.15625/vjmech.v36i2.3405 article EN Vietnam Journal of Mechanics 2014-05-30

The paper examines the impact of corporate governance on performance Vietnamese banks. Corporate Governance Index has been used to evaluate banks in period 2010-2012. return equity and assets have measure bank performance. It is found that there a significant gap between actual practices international principles, statistically difference listed non-listed Vietnam. Better associated with better authors also positive correlation disclosure, role board directors, shareholders shareholder...

10.5539/ass.v10n9p213 article EN Asian Social Science 2014-04-29

Abstract Unless there is support provided by a workover rig or temporary fixed platform, coiled tubing (CT) intervention on small offshore platform not feasible. Usually, platforms have low deck load capacity and available space insufficient for CT operations. To puzzle out the solution to this issue, operations from vessel were discussed subsequently developed more than decade ago. In 2002, technique was substantially refined improved improve safety reliability, which allows well of...

10.2118/141234-ms article EN All Days 2011-04-05

BACKGROUND: After coronary artery bypass graft (CABG) surgery, heart failure is still major problem. The valuable marker for it needed.
 AIM: Evaluating the role of serial NT-proBNP level in prognosis and follow-up treatment acute after CABG surgery.
 METHODS: prospective, analytic study evaluated 107 patients undergoing surgery at Ho Chi Minh Heart Institute from October 2012 to June 2014. Collecting data was done pre- post-operative days with measuring levels on day before...

10.3889/oamjms.2019.872 article EN Open Access Macedonian Journal of Medical Sciences 2019-12-20

We characterize the long-run foreign direct investment (FDI) absorption capacity by both and indirect methods on one cross-section data sample covering 180 economies from 1980 to 2013. The is built up productivity growth rate, savings–investment gap first approach financial development level second one. Two together reveal that deeper international integration a higher capital account openness can expand substantially capacity.

10.1142/s1793993319500042 article EN Journal of International Commerce Economics and Policy 2019-02-01

Abstract This study was performed to develop a surface roughness model in the grinded process by using response method (RSM). The experimental research grinding SKD11 steel CBN wheel (symbol of HY-180x13x31.75-100#). matrix developed basing on Box - Behnken plan with 15 experiments. Experimental results were analyzed Minitab 16 statistical software model. proposed is quadratic function parameters such as workpiece velocity, feed rate, and depth cut. verified very consistent results. can be...

10.1088/1757-899x/758/1/012029 article EN IOP Conference Series Materials Science and Engineering 2020-02-01

In this paper we investigate stochastic implicit difference equations (SIDEs for short). We give a definition of solution to such kind equations. An index-1 concept is introduced and formulas are established. The continuous dependence on initial condition also considered these After that, the mean square stability SIDEs studied by using method Lyapunov functions. Some examples given illustrate obtained results.

10.1080/10236198.2020.1843644 article EN The Journal of Difference Equations and Applications 2020-11-10

This paper aims at studying the restructuring of commercial banks which has been started since 2011 in Vietnam. is considered as an active approach banking system order to effectively obtain targets circumstance no risk severe crisis or recession. The summarizes international practices and experiences bank including: (i) concept goals restructuring, (ii) circumstances conditions before (iii) methods implementation (iv) evaluation effectiveness restructuring. By conducting a survey for...

10.5430/afr.v3n2p36 article EN Accounting and Finance Research 2014-03-14

The report presents method and results of experiments in wind tunnel to determine aerodynamic characteristics 3D wings by measuring pressure distribution on the wing surfaces. Simultaneously, a numerical using sources doublets distributed panel elements surface also is carried out calculate flows around wings. This computational allows solving inviscid problems for with thickness profile. experimental are compared each other verify built program that permits extend range applications...

10.15625/0866-7136/36/2/3405 article EN Vietnam Journal of Mechanics 2014-06-10

Splenic artery aneurysm and splenic pseudoaneurysm are rare vascular pathologies. The represents the third most common site for intra-abdominal aneurysms. In contrast with true aneurysm, is typically symptomatic, presenting a range of symptoms, from abdominal pain to hemodynamic instability due rupture. However, gastrointestinal hemorrhage an uncommon complication pseudoaneurysm. We report case acute upper patient was successfully treated by endovascular intervention.

10.1177/2050313x211061910 article EN cc-by-nc SAGE Open Medical Case Reports 2021-01-01

The occurrence of weeds in water rice was surveyed the Red River Delta, Vietnam during spring and summer rice-growing seasons 1995 1996. Sixty different from 19 plant families were recorded. most important as Poaceae Cyperaceae. weed however Rotala indica (Willd.) Koehne (Lythraceae) followed by Echinochloa crus-galli (L.) Beauv. Cyperus difformis L. A brief comparison this flora those Australia California made. Keywords: WeedsRiceVietnamSurvey

10.1080/09670870050206055 article EN International Journal of Pest Management 2000-01-01

This paper presented the experimental results about investigation of influence cutting conditions on surface roughness when hole turning SCM400 steel. Three paramesters that have mentioned in this study included speed, axial feed rate, and depth. The design was chosen following orthogonal matrix added center experiment points. analyzed show rate has greatest degree impact roughness. And, second third factors negligible effect are speed depth, respectively. These will guide determination...

10.24018/ejers.2019.4.8.1461 article EN European Journal of Engineering and Technology Research 2019-08-15
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