낙상 경험 유무에 따른 노인 여성의 허리와 무릎관절 근력 비교 연구

황병준,김종우,최운호,Hwang, Byeong-jun,Kim, Jong-woo,Choi, Woon-ho 대한정형도수물리치료학회 2015 대한정형도수물리치료학회지 Vol.21 No.1

Background: This study was conducted in order to see if muscle strength is different according to fall experience in female elders by comparing their muscle strength of waist and knee, which is one of factors inducing fall. Method: For this study, 22 female elders aged over 65 sampled from senior centers in D City were surveyed on their fall experiences using a questionnaire asking clinical history. Then, 8 elders with fall experience (FE) and another 8 without (NFE) were selected and participated in the research. Isokinetic muscle strength was measured with isokinetic equipment BIODEX SYSTEM 3 PRO, and the peak torque was obtained from the highest of 9 measurements at angular velocity $60^{\circ}/sec$ according to the method recommended in the manual. Measured items were waist flexion and extension, and knee flexion and extension. Results: The FE group showed higher extensor and flexor muscle strength of the waist, but the difference was not significant (p<.05). In addition, no difference was observed in extensor muscle strength of the knee (p<.05). In flexor muscle strength, however, the FE group was significantly higher than the NFE group (p<.05). Conclusion: The application of regular exercise programs for improving muscle strength, endurance, etc. to those with fall experience will be effective in preventing falls among them.

Circular Annulus 대 회전 이층유체 실험

황병준,나정열,Hwang, Byong-Jun,Na, Jung-Yul 한국해양학회 1999 바다 Vol.4 No.1

본 이층 유체 실험의 목적은 하층유체가 외부유체의 유입 유출로 움직일 때 그에 따른 상층유체의 경압적인 응답을 연구하는 것이다. 최근에 관측된 용해 심층해류의 순압성 특성(Takematsu et al., 1994; 한국해양연구소, 1997)을 고려할 때 상층은 이러한 동해 심층수의 움직임을 경계면의 변형을 통해 느낄 수 있을 것이다. 본 실험은 이러한 경계면의 변형에 영향을 주는 요인들을 연구함으로써 전체적인 동해의 해수순환 혹은 국지적인 해수순환을 파악하고자 하였다. 정상적(steady)인 축대칭의 유입 혹은 유출실험은 균질 유체의 경우, 축대칭의 지형류를 야기시키며 이층유체의 하층유체 흐름도 유사한 특성을 가졌다. 그러나 로스비 수(${\varepsilon}$) 혹은 내부 프라우드 수($f_2$)가 증가하면서 하층유체의 운동은 경계면 변형에 영향을 받았다. 상층유체의 최대속도는 ${\varepsilon}f_2$에 매우 의존적이며, 그 흐름은 거의 포물선 형태를 보였다. 관찰된 상 하층유체의 속도로부터 계산된 경계면의 기울기는 ${\varepsilon}f_2$에 따라 커졌다. 즉 ${\varepsilon}f_2$의 증가는 이층유체가 순압적인 구조에서 경압적인 구조로 바뀌게 하였다. The purpose of this study is to investigate the baroclinic response of the upper-layer of two-layered fluid when the lower-layer motion is driven by pumping an external fluid into the lower-layer or by pumping out the lower-layer fluid. Recent observations of the barotropic nature of deep water movements in the East Sea (fakematsu et al., 1994; KORDI, 1997) may suggest a possibility of interaction between the upper and lower layer via interface tilting. For homogeneous fluid, steady and axisymmetric source or sink causes axisymmetric geostrophic flow, and the lower-layer motion in two-layered fluid was similar to homogeneous flow. But as Rossby number (${\varepsilon}$) or internal Froude number ($f_2$) increases, the lower-layer motion was affected by the interface tilting. The interface tilting calculated based on the observed azimuthal velocities of upper- and lower-layers becomes greater as $f_2$ increases. In other words, the increase of the $f_2$ changes the barotropic system to baroclinic system.

절기예배와 기독교교육의 새 패러다임을 위한 제언

황병준(Byung-June Hwang) 한국기독교교육정보학회 2009 기독교교육정보 Vol.24 No.-

This study articulates the educational issues of seasonal worship following the Christian church calendar. The methods of this research are derived from the questions regarding Christian education following the church calendar, historical teaching methods by the Hebrews for their next generation, and the development of the seasonal worship in the early church. The final question has drawn upon the ways seasonal worship is celebrated in the contemporary church. Celebrating seasonal worship stands at the forefront of church worship. Then, how can the modem church interest people to become involved in and to educate people in the deep implications of seasons in church calendar? How can it be developed to connect faithful education and seasonal worship? What is the issue of Christian education relating to seasonal worship in the changing circumstances? Underlying the questions raised above, this research examines the historical background of the church calendar and its meaning in formatting seasonal worship. Next, this study is about 'what to teach' regarding the contents and meanings of the church calendar. The final part of this study suggests 'how to teach', the methodology of seasonal worship, ways of 'curriculum reformatting', 'teaching and learning methods', and the 'ecology of seasonal worship'. To redesign curriculum, this study suggests potential ideas of methods for explicit, implicit, and null curriculum. Types of teaching and learning methods suggested are experimental, reflective, and relational learning methods. The ecology of seasonal worship provides a way of inter-generational faithful education, development of partnership, and formation of a faithful community.

요부안정화운동이 여성 노인의 요부 및 하지 근력에 미치는 영향

황병준 ( Byeong Jun Hwang ),김종우 ( Jong Woo Kim ) 대한물리의학회 2011 대한물리의학회지 Vol.6 No.3

Objective:This study aims to examine how lumbar stabilization exercise and resistive exercise affect lumbar and lower extremity muscular strength of the aged. Method:Randomly selected 15 female senior citizens aged 65 or older at S, Y, and J senior citizens` center located in D city who meet the requirements for the study were divided into a resistive exercise group of 7 and a stabilization exercise group of 8 for which 60-minute-exercise sessions were administered three times a week for 12 weeks. Measuring lumbar and lower extremity muscular strength was measured six weeks and 12 weeks after exercise, respectively. Results:First, both resistive exercises and stabilization exercises are effective to improve lumbar muscular strength. Second, resistive exercise is effective to improve flexural muscle strength as well as lower extremity muscular strength, and stabilization exercise is effective for both flexion and extensor muscle strength. Conclusion:The 12 week lumbar stabilization exercise program appeared to be effective to improve lumbar and lower extremity muscular strength of the aged. This indicates that applying this program to identify and prevent frequent risk factors of falling can lead to the prevention of secondary problem factors of falling accidents.

상지의 탄력저항 운동이 낙상경험 노인의 보행과 균형 능력에 미치는 영향

황병준(Byung Jun Hwang),김차용(Cha Yong Kim),이대연(Dae Yeon Lee) 한국사회체육학회 2006 한국사회체육학회지 Vol.0 No.28

폐목질을 사용한 시멘트보드의 기초적 특성에 관한 실험적 연구

황병준 ( Byoung Jun Hwang ),김광기 ( Kwang Ki Kim ),박희곤 ( Hee Gon Park ),강태경 ( Tae Kyoung Kang ),백민수 ( Min Soo Back ),정상진 ( Sang Jin Jung ) 한국건축시공학회 2004 한국건축시공학회 학술발표대회 논문집 Vol.4 No.1

Recently, as the alternatives to preserve environment such as effective usage of wastes or unusable resources are drawing attentions, researches and measures for the two tasks, which are reuse of waste wood and development of eco-friendly materials, are being examined and established in various fields. However, they are still insufficient. Therefore, in this study, for the efficient application of waste woods and eco-friendly effects, mortar was produced using sawdust as the waste wood and mineral material cement for combination, in order to produce inorganic boards using waste woods, which were made when sawing. The present study purposed to analyze the physical and dynamic characteristics of woody cement boards, which were made by modifying water-cement ratio for each wood inclusion rate based on a hardening-accelerator inclusion rate set in previous studies and, based on the findings, to provide basic data about the physical properties of inorganic boards made of waste wood, in order to produce woody cement boards using waste wood, which has problems in being used in the manufacturing of woody cement boards.

두 종류의 불순물을 가진 광굴절 물질의 체적 홀로그램 광연결에서 생기는 모드간 공간 전하 필드

황병준(Hwang Byeong Joon),이혁(Hyuk Lee) 대한전기학회 1993 대한전기학회 학술대회 논문집 Vol.1993 No.7

전동식 오일 펌프의 고장 진단 요구사항 설계 및 검증

황병준(Byung Jun Hwang),김종찬(Jong-Chan Kim) 한국자동차공학회 2023 한국자동차공학회 부문종합 학술대회 Vol.2023 No.5

This paper proposes design and validation of fault diagnosis for electric oil pumps used in vehicle. There can be various requirements for a malfunction diagnosis, but it is difficult to analyze without understanding the characteristics of an electric oil pump. The proposed method provides how to analyze the fault diagnosis requirements of electric oil pumps and state machine model designs to implement source code and validate with system implementation. This method will be necessary to predict various fault situations and determine the actions to be taken in each situation. Also it presents a way to ensure consistency between fault diagnosis requirements and the implementation.

미세구조체를 형성한 스테인레스 표면의 생물막 형성 제어 연구

황병준(Hwang Byeong),이성호(Lee Sung Ho) 한국생산제조학회 2013 한국생산제조시스템학회 학술발표대회 논문집 Vol.2013 No.4

순환전압전류법을 이용한 수중 생물막 측정 전기화학센서

황병준 ( Byeong Jun Hwang ),이성호 ( Sung Ho Lee ) 한국센서학회 2012 센서학회지 Vol.21 No.5

Biofouling causes many problem in industrial processes, medical health industries, water utilities and our daily life, So detecting formation of biofilm on the surface of medical appliance, water pipe and industrial utility is highly important to prevent the problem caused by biofouling, In this study, we suggest an electrochemical sensor for detecting biofilm, We fabricated the electrochemical sensor in MEMS process and cultivated two different kinds of Pseudomonas aeruginosa RpoN type and Wild type on the surface of electrochemical sensor. Each group of Pseudomonas aeruginosa was cultivated according to the hours of 2, 4, 6, 8, 12 and 24. Then we investigated changes in degree of biofilm cultivation using cyclic voltammetry. As a result, it was observed that peak of the cyclic voltammetry curve is increased according as the biofilm growth on the surface of electrochemical sensor. Also we can discern between Pseudomonas aeruginosa RpoN type and Wild type.