Factors Influencing Physical Activities of Older Adults with Hip Fracture Surgery in Vietnam

Vo Thanh Ton 인제대학교 일반대학원 2020 국내석사

Factors Influencing Physical Activities of Older Adults with Hip Fracture Surgery in Vietnam Vo Thanh Ton (Advisor: Prof. Jina Oh PhD.RN) Department of Nursing Graduate School, Inje University * This study was supported by the Global Korea Scholarship (GKS) of the National Institute for International Education under the Ministry of Education, Korea (grant number KGSP-GRA-2016-092). Background: Worldwide, about two million patients suffer a hip fracture per year and as the population continues to age this figure has increased. In Vietnam hip fracture is a big problem especially with older adults. Therefore, we need to find the factors influencing physical activities of older adults with hip fracture to support for rehabilitation after hip fracture and to know basic information about physical activities after hip fracture in older adults. Objectives: The purpose of this study was assess the factors influencing physical activities of the older adults with hip fracture surgery in Vietnam. Methods: A descriptive cross-sectional design was used. Participants of 120 in-patients over 60 years old in two general hospitals located in a central province of Vietnam completed a questionnaire. The questionnaire included six parts; physical activities, pain, sleep quality, fear of falling, cognitive function and general characteristics. Descriptive statistics was used to describe the socio-demographic variables and level of study variables. Pearson correlation coefficient was used to examine of the relationship among study variables. Independent t-test, ANOVA and Scheffé's post-hoc test was used to identify differences of study variables according to general characteristics, and multiple regression analysis was performed to identify factors influencing physical activities of patients with hip fracture surgery. Results: The total mean score of physical activities was 1.63±1.12, pain was 7.26±1.19, sleep quality was 6.87±3.04, fear of falling was 41.58±7.47 and cognitive function was 16.85±6.31. The scores of physical activities were significant difference according to age (F=10.8, p<.001), residence (t=-0.91, p=.019) and were not significant difference according to another characteristics including gender and BMI. Physical activities were negatively correlated with pain (r=-.47, p<.001), fear of falling (r=-.25, p=.005), physical activities were positively correlated with cognitive function (r=.36, p<.001). According to the result of multiple regression analysis, pain (β =-0.42, p<.001), age (β =-0.48, p=.001) were significant influencing factors of physical activities. These variables explained 29.4% of the variances in physical activities of older adults with hip fracture surgery (F=9.24, p<.001) Conclusions: The present study shows pain, age are the factors significant influence the older adults’ physical activities and provides data on new rehabilitation research areas which has an implication for older adults with hip fracture.

Overview and some barriers in public : private partnership cooperation in Vietnamese law, situation and solutions

Nguyen, Ton Quynh Vy TLBU Graduate School of Law 2019 국내석사

Deburring mechanism on inclined exit surface by new deburring Tool

Ton, Thien-Phuong 건국대학교 대학원 2012 국내박사

Direct torque control of IPMSMs based on a nonlinear optimal control technique for electric vehicle applications

Ton, Duc Do Dongguk Univ. 2014 국내박사

This dissertation deals with design and analysis of direct torque control (DTC) system for interior permanent magnet synchronous motors (IPMSMs) in electric vehicle (EV) applications. First, dynamics equations of the IPMSMs are transformed to a suitable form that makes a nonlinear optimal DTC technique applicable. Moreover, the maximum torque per ampere (MTPA) control is incorporated by using a simple approximated formula. Also, because the load torque information is directly calculated via calculating rotor acceleration, a load torque observer is avoided. Because of being constructed in stationary reference frame, the proposed direct torque controller is not only simpler but also more robust than the conventional PI direct torque controller which requires an estimated stator position information and Park transformation. Based on a nonlinear control technique, which approximates the optimal solution to the Hamilton-Jacobi-Bellman equation, the proposed DTC scheme can effectively handle the nonlinearities of the IPMSM drive systems. Therefore, high control performances such as fast dynamic response, small speed and torque ripple, and zero steady-state errors are expected. In this dissertation, the proposed nonlinear optimal DTC system is proven to be semi-global asymptotically stable. Finally, the proposed DTC scheme is simulated on MATLAB/Simulink software and implemented on a prototype IPMSM with a TMS320F28335 DSP. The detailed simulation and experimental results are shown to verify the feasibility of the proposed DTC system. To illustrate the superiority of the proposed nonlinear optimal direct torque controller, its results are compared to that of the conventional PI direct torque controller.

The Effects of Vietnam-Korea FTA on Vietnam Economy

TON DIEU QUYNH The Graduate School of the University of Ulsan 2016 국내석사

The aim of this thesis is to study the participation in Free trade agreements between Korea and Vietnam, the establishment and main content of Vietnam-Korea free trade agreement (VKFTA). Based on the theory of FTA, this thesis gives a comprehensive assessment about the potential impact of Vietnam-Korea free trade agreement (VKFTA) on Vietnam's economy. It also provides a comprehensive view of trade relation, specifically export-import relation and foreign direct investment (FDI), between Vietnam and Korea since the establishment of formal diplomatic relations in 1992 based on collecting and analyzing data about export-import and FDI. The results of bilateral trade analysis indicates that, the trade structure between Korea and Vietnam still remains unchanged, even though bilateral trade between the two has expanded significantly over the past two decades. Vietnam exports to South Korea are mainly labor-intensive products which have low-values, while the imports from Korea are mainly capital-intensive and technology-intensive products which have higher values. The results from the evaluation based on theory of free trade agreement (FTA) show that Vietnam-Korea free trade agreement (VKFTA) will bring out potential impacts on Vietnam's economy such as growing of merchandise trade, attracting investment and technology, increasing social benefits, giving more motivation to promote growth of Vietnam economy in particular. It will also strengthen exchanges of bilateral economic, trade and investment between Korea and Vietnam in general in the future.

Video Stabilization by Smoothing Motion Parameters : 스무딩 모션 계수에 의한 비디오 안정화

TON THI KIM LOAN Graduate School of Soongsil University 2015 국내석사

Video stabilization (VS) is becoming a video enhancement technique that aims to remove unsteadiness and unexpected vibrations in video sequence and makes it to be stabilized and smoothed in order to acquire more pleasant and better output one. This dissertation presents a digital video stabilization process using Kanade-Lucas-Tomasi algorithm for tracking good features between two continuous frames. Basing on these feature information, motion parameters are estimated by using RANSAC method. Continuously, the estimated motion parameters will be sent to the motion smoothing stage, where the unwanted motion (jitter) is eliminated. A moving adaptive alpha-trimmed filter window is adopted to obtain the smoothen motion. Finally, the image warping stage warps the current frame according to the smoothen parameters and generates the stabilized video sequence. 비디오 안정화 (VS)는 비디오 시퀀스에서 불필요한 흔들림을 제거하고 보다 더 좋은 출력을 얻기 위한 기술중 하나이다. 이 논문에서는 Kanade-Lucas- Tomasi 알고리즘을 이용하여 두 개의 연속적인 프레임 사이의 특징을 추출하는 디지털 비디오 안정화 방법을 제시한다. 이러한 특징 정보를 토대로 움직임 파라미터는 RANSAC 방법을 이용하여 추정된다. 추정된 움직임 파라미터는 움직임 평활화 단계에서 사용되며, 이 단계에서는 원치 않는 움직임(jitter)이 제거된다. 평활화된 움직임을 얻기 위해서 움직임 적응 알파 트리밍 필터 윈도우가 사용된다. 마지막으로, 이미지 워핑(warping) 단계에서는 움직임 파라미터들에 따라 현재 프레임을 워핑하고 안정화 된 비디오 시퀀스를 생성한다.

Speech emotion recognition using fuzzy inference system based on fuzzy associative memory

Ton That, Hoa An Soongsil University 2014 국내박사

WORKING WITHIN LIMITS : THE ROLE OF THE COMMISSION FOR THE ENVIRONMENT IN ENVIRONMENTAL POLICY DEVELOPMENT IN NEW ZEALAND

BUHRS, TON University of Auckland 1991 국내박사

(Die)Grammatische und die psychologische Interpretation in der Hermeneutik Schleiermachers

Kang, Ton-Ku [s.n.] 1978 국내박사

Deprivation of liberty of children in light of international human rights law and standards

Liefaard, Ton Intersentia 2008 해외석사