복합재 적층평판 대변형의 해석적 계산법

이아람(Ah Ram Lee),조맹효(Maenghyo Cho) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.4-2

청소년쉼터 종사자가 경험한 클라이언트 폭력, 스트레스, 소진 간의 구조적 관계 : 청소년쉼터 유형별 다집단분석을 중심으로

이아람(Lee Ah Ram) 한국사회복지실천연구학회 2021 미래사회복지연구 Vol.12 No.3

본 연구의 목적은 첫째, 청소년쉼터 종사자들의 경험하는 클라이언트 폭력, 스트레스, 소진 간의 구조적 관계를 파악하고 둘째, 클라이언트 폭력과 소진 간의 관계에서 스트레스의 매개효과를 규명하고 셋째, 청소년쉼터 유형(일시, 단기, 중장기)에 따라 연구모형의 각 경로별 차이를 규명한다. 넷째, 실증연구 분석결과를 토대로 청소년쉼터를 운영하는 정부기관 및 관리자에게 클라이언트 폭력으로부터 종사자의 안전과 인권을 옹호 할 수 있는 효과적인 대책을 모색하도록 시사점을 제공하는데 본 연구의 목적을 두었다. 본 연구는 전국 134개 청소년쉼터에 근무하는 325명 종사자 대상의 설문지를 분석에 활용하였으며, SPSS 및 AMOS 통계분석 프로그램을 이용하여 분석하였다. 구체적인 분석결과는 다음과 같다. 첫째, 청소년쉼터 종사자가 경험한 클라이언트 폭력은 스트레스와 성취감 저하에 통계적으로 의미 있는 영향을 미치는 것으로 밝혀졌다. 둘째, 청소년쉼터 종사자의 스트레스는 감정적 고갈, 성취감저하, 비인격화에 통계적 유의수준에서 의미 있는 영향을 미치는 것으로 나타났다. 셋째, 클라이언트 폭력과 소진 하위요인들 간의 관계에서 스트레스는 매개효과가 있는 것으로 밝혀졌다. 넷째, 청소년쉼터 유형에 따라 연구모델에서 제안한 각 경로별 다집단분석을 실시한 결과 몇몇 경로에서 유형별 차이가 발견되었다. This study focuses on (i) identifying the structural relationship between the client violence, stress, and burnout experienced by youth shelter workers, (ii) identifying the mediating effect of stress in the relationship between client violence and burnout, (iii) identifying the differences by each pathway in the research model depending on the types of youth shelters (temporary, short-term, mid- to long-term), and (iv) providing implications based on the empirical research to government agencies and managers operating youth shelters to find effective measures for workers’ safety and human rights from client violence. In this study, questionnaires conducted with 325 workers working in 134 youth shelters were analyzed using the SPSS and AMOS statistical analysis programs. The analysis results show that the client violence experiences of youth shelter workers significantly affect their stress level and sense of achievement. It was also found statistically that the higher stress level causes emotional exhaustion, decrease in their sense of achievement, and depersonalization. Furthermore, the analysis revealed that stress had a mediating effect on the relationship between client violence and burnout sub-factors. Based on multi-group analysis, a pathway suggested by research models showed differences according to the types of youth shelters.

게임 활용 교육에 대한 초등교사의 인식과 활용방안

이아람 ( Ah Ram Lee ),김영식 ( Yung Sik Kim ) 한국컴퓨터교육학회 2016 한국컴퓨터교육학회 학술발표대회논문집 Vol.20 No.2

지금까지 게임은 사회적으로 부정적인 인식이 강하였으나 게임 산업을 지지하는 세계적인 추세와 더불어 정부에서 ‘게임문화 진흥계획안’을 발표하였다. 게임을 활용한 교육에 대한 연구는 조금씩 진행되어 왔고 긍정적인 효과가 인정되고 있으나 아직 게임은 교육적으로 적합하지 않다는 시각으로 보는 교사들이 대부분이다. 또한 관련 연구도 체계적으로 이루어지지 않고 있고 게임 활용 교육에 대한 용어도 혼용하여 사용하고 있다. 본 연구에서는 게임을 활용한 교육을 두 종류로 나누어 초등교사들의 인식을 살펴보고 추후 이루어질 게임 활용 교육 관련 연구에 시사점을 제공하고자 한다.

The Korean Version of the Singing Voice Handicap Index

이아람(Ah Ram Lee),심현섭(Hyun Sub Sim) 한국언어청각임상학회 2013 Communication Sciences and Disorders Vol.18 No.2

배경 및 목적: 음성장애 성악인을 대상으로 최근 개발되어 보고된 Singing Voice Handicap Index (SVHI)를 한국어로 번안하고, 신뢰도 및 타당도를 검증하여 이를 국내 음성장애 치료의 임상현장과 연구에 사용하는 것이 적합한지를 알아보기 위한 것이다. 방법: 한국어로 번안하여 내용 타당도를 거친 K-SVHI와 Iowa Patient’s Voice Index (IPVI) 1번 문항, Voice Handicap Index (VHI)를 설문지로 제공한 후 결과를 분석하였다. 본 연구의 대상자는 총 120명으로 일반 성악인 90명과 음성장애 성악인 40명이다. 일반 성악인 집단은 성악전공 대학생 30명, 합창단원 30명, 연주가 30명으로 구성되었다. 결과: 1) 음성장애 성악인의 K-SVHI 총점의 평균이 일반 성악인의 KSVHI 총점의 평균에 비해 통계적으로 유의하게 높았다. 2) 세 개의 일반 성악인 집단, 즉 성악전공대학생, 합창단원, 연주가 집단을 대상으로 K-SVHI 총점에 대한 차이를 연구한 결과, 그룹 간 유의한 차이를 보였다. 성악전공 대학생들이 가장 높은 점수를 보였고 다음으로는 합창단원 및 연주가 순서였다. 3) 한국어로 번안된 K-SVHI는 내용 타당도를 거쳐 신뢰도 및 타당도 면에서 유의한 측정도구임이 밝혀졌다. 논의 및 결론: K-SVHI가 음성장애 성악인이 자신의 음성 문제를 인식하게 하며 일반 성악인과 비교하여 변별력 있게 평가할수 있는 도구라는 사실을 입증 해 주었다. 또한 K-SVHI가 음성장애 심리측정적 평가도구로 신뢰도 및 타당도가 있음을 밝혔다. Objectives: The purpose of this study was to generate a Korean version of the Singing Voice Handicap Index (K-SVHI) and to test whether application of the K-SVHI would be plausible for patients with voice disorders. Methods: Subjects who participated in the study were 130 vocalists, including 90 normal and 40 dysphonic vocalists. The group of normal vocalists consisted of 30 students majoring in vocal music, 30 members of the chorus and 30 performing musicians. The Korean version of SVHI was translated into Korean from the English version. Three different types of rating tools were used to document the subject’s perception of the handicap of Korean vocalists: the first item of Iowa Patient’s Voice Index (IPVI), VHI and K-SVHI. Internal consistency reliability, test-retest reliability and concurrent validity were assessed as well as group differences. Results: The results of this study are summarized as follows. 1) There was a high internal consistency between items of K-SVHI. Test-retest reliability was extremely high. With regards to the concurrent validity, Spearman correlation between the K-SVHI and IPVI’s first item was high in the dysphonic vocalists group. 2) Dysphonic vocalists had higher K-SVHI scores compared to normal vocalists. 3) Three normal vocalist groups showed significant differences from each other when analyzed with the ANOVA. Students majoring in vocal music received significantly higher scores than members of the chorus, and members of the chorus had higher scores than the performing musicians. Conclusion: The K-SVHI seems to be a useful psychometric instrument for assessing the voice handicap of Korean vocalists with voice problems.

히스테리시스를 갖는 미세 구동기의 실시간 제어 알고리즘

이아람(Ah-Ram Lee),이지홍(Jihong Lee) 대한전자공학회 2008 電子工學會論文誌-SC (System and control) Vol.45 No.1

본 논문에서는 자기변형재료를 이용한 미세 구동기의 개발과 실시간 제어 알고리즘에 관한 내용을 다룬다. 자기변형재료는 빠른 응답속도, 미세변위동작, 높은 에너지 효율 등의 장점을 가지고 있어 미세 구동기의 재료로 적합하지만 히스테리시스 특성도 함께 갖고 있어 제어에 많은 어려움이 따른다. 본 논문에서는 자기변형재료의 히스테리시스를 제어하기위해 Preisach model을 바탕으로 구동기를 모델링 하였다. 기존의 Preisach 모델은 실험적 데이터를 바탕으로 하기 때문에 정밀한 제어를 하기 위해서는 많은 양의 데이터가 필요하고 결과적으로는 처리해야할 데이터의 양이 많아져 연산하는데 많은 시간이 걸리는 문제가 있다. 본 논문에서는 이러한 문제를 해결하기 위하여 기존의 Preisach 모델의 데이터를 선행 처리하여 일정구간 구동기의 움직임을 저장해 놓은 확장된 Preisach 모델을 제안하였다. 본 논문에서는 Tefenol-D라는 자기변형재료를 사용하여 미세구동기를 제작하고 제어 실험을 통하여 제안된 모델의 우수성을 증명하였다. This paper presented the development and real-time control of a magnetostrictive micro actuator. Magnetostrictive material has many advantages such as high response time, precision displacement and powerful output force. But Magnetostrictive material has characteristic of hysteresis. Conventional Preisach model which based on experimental data is not suitable to the real-time control because of controlling a magnetostrictive system by Preisach model costs a lot of calculating time. And, we prove the validity of proposed model through the experimental comparison between the classical Preisach model and the proposed one.

중증 소화불량증 환자에 대해 체침요법과 자하거 약침요법의 치료 효과에 대한 후향적 비교 연구

이아람 ( Ah Ram Lee ),김원일 ( Won Il Kim ) 경락경혈학회 2013 Korean Journal of Acupuncture Vol.30 No.4

The purpose of this research was to compare the effect of general acupuncture therapy to Hominis placenta Pharmacopuncture therapy on pain and discomfort of severe dyspepsia in upper abdomen. Methods: We investigated 60 cases of patients with severe dyspepsia, who had been treated at Dept. of Internal Medicine, College of Oriental Medicine Dongeui University from May 2011 to September 2012. We divided patients into two groups: Group I was treated by general acupuncture (ACU, n=30) and Group II was treated by Hominis placenta Pharmacopuncture therapy (PHA, n=30). The symptoms and quality of life were measured with the Nepean dyspepsia index-Korean version (NDI-K) at baseline and 2 weeks. The responsiveness of the NDI-K was evaluated by correlation with symptom scores. Results: In ACU group, the 13 symptom scores were significantly decreased after treatment(p<0.05). In PHA group, the 9 symptom scores were significantly decreased after treatment(p<0.05). In ACU group, the 3 Quality of life(QOL) scores were significantly increased after treatment(p<0.01). In PHA group, the 3 QOL scores were significantly increased after treatment(p<0.05). Conclusions: General acupuncture therapy and Hominis placenta Pharmacopuncture therapy improves the symptoms and the quality of life in patients with severe dyspepsia. But there were no significant differences statistically between the two groups.

히스테리시스가 있는 미세구동기의 정밀제어

이아람(Ah-Ram Lee),이지홍(Jihong Lee) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.11

Magnetostrictive actuator has many advantages such as high response time, powerful output force and scale of nano-resolution. In spite of these advantages, the magnetostrictive actuator has hysteresis problem. In general, to solve the hysteresis problem, Preisach model had been applied to the control of magnetostrictive actuators. But Preisach model is not suitable to the real-time control because of controlling a magnetostrictive system by Preisach model costs a lot of calculating time. Accordingly, in this paper, we propose the extended Preisach model for real-time control. And, we prove the validity of proposed model through the experimental comparison between the classical Preisach model and the proposed one.

중증 소화불량증 환자에 대해 체침요법과 자하거 약침요법의 치료 효과에 대한 후향적 비교 연구

이아람 ( Ah Ram Lee ),김원일 ( Won Il Kim ) 경락경혈학회 2013 Korean Journal of Acupuncture Vol.30 No.4

Objectives: The purpose of this research was to compare the effect of general acupuncture therapy to Hominis placenta Pharmacopuncture therapy on pain and discomfort of severe dyspepsia in upper abdomen. Methods: We investigated 60 cases of patients with severe dyspepsia, who had been treated at Dept. of Internal Medicine, College of Oriental Medicine Dongeui University from May 2011 to September 2012. We divided patients into two groups: Group I was treated by general acupuncture (ACU, n=30) and Group II was treated by Hominis placenta Pharmacopuncture therapy (PHA, n=30). The symptoms and quality of life were measured with the Nepean dyspepsia index-Korean version (NDI-K) at baseline and 2 weeks. The responsiveness of the NDI-K was evaluated by correlation with symptom scores. Results: In ACU group, the 13 symptom scores were significantly decreased after treatment(p<0.05). In PHA group, the 9 symptom scores were significantly decreased after treatment(p<0.05). In ACU group, the 3 Quality of life(QOL) scores were significantly increased after treatment(p<0.01). In PHA group, the 3 QOL scores were significantly increased after treatment(p<0.05). Conclusions: General acupuncture therapy and Hominis placenta Pharmacopuncture therapy improves the symptoms and the quality of life in patients with severe dyspepsia. But there were no significant differences statistically between the two groups.

뇌졸중에 병발한 요로감염으로 인한 발열, 부종에 대한 마황가출탕 치험 1례

임제민,이아람,감철우,김원일,Yim, Je-Min,Lee, Ah-Ram,Kam, Cheol-Woo,Kim, Won-Il 대한한의학방제학회 2011 大韓韓醫學方劑學會誌 Vol.19 No.1

Objectives : The purpose of this study is to report the improvement after treatment with Mahwanggachul-tang on fever and edema due to urinary tract infection combined with stroke. Methods : From December 8th to 22nd 2010, We treated a ischemic stroke patient having fever and edema due to urinary tract infection with Mahwanggachul-tang. We checked body temperature, intake-output, urine analysis and chest X-ray. Results : There were improvement on body temperature, Intake-output, urin analysis and chest X-ray. Conclusions : This report shows Mahwanggachul-tang has effectiveness on fever and edema due to urinary tract infection combined with stroke.

연구논문 : 운동시 피부온의 변화에 대한 서모그래피 활용 분석

김희은 ( Hee Eun Kim ),이아람 ( Ah Ram Lee ) 한국의류산업학회 2012 한국의류산업학회지 Vol.14 No.1

The purpose of this study was to investigate the variation of regional skin temperature with thermography during exercise. Seven men completed 82-min trials which consisted of rest, exercise of V02 max 60% and recovery period at 30±o.5°C and 60±5%RH. Changes in skin temperature due to physical activity varied, depending region of the body. The skin temperature of the chest was significantly lowered and that of the back was significantly increased after exercise period(p<0.05). There were significant negative relationship between the skin temperature of the chest and thermal comfort sensation, and positive relationship between skin temperature of the back and thermal comfort sensation(p<0.05). It would be better to keep the chest warm, and the back cool during exercise. The skin temperature changed differently on body site due to exercise, and it was influenced by blood flow, sweating and air movement This study would be meaningful in that the change of regional skin temperature during exercise was investigated consecutively with thermography. In further study, it would be more realistic to measure physiological response with functional sportswear which applies different functional fabric based on skin temperature.