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      • KCI등재

        청소년들의 수월성 획득을 위한 플로우(Flow) 촉진 프로그램과 그 효과의 분석

        이창호 ( Chang Ho Lee ) 한국상담학회 2005 상담학연구 Vol.6 No.2

        이 연구는 청소년들의 수월성을 촉진하기 위한 모델로서 최근 심리학 분야의 새로운 조류인 긍정심리학(positive psychology)에서 다루고 있는 플로우(flow)발달모델을 활용한 집단상담프로그램을 개발하여 그 효과를 살펴보고자 하였다. 프로그램은 총 5회기로 구성되어 있으며 실시대상은 중학교에 1-2학년에 재학 중인 학생 총 37명으로 6개 집단으로 나누어 실시하였다. 프로그램의 효과를 알아보기 위하여 청소년플로우척도(이창호 외, 2002), 자기효능감척도(홍혜영, 1995), 그리고 자아존중감척도(이창호외, 2002) 등을 사전-사후검사로 실시하였다. 그리고 우리나라 청소년들의 플로경험 영역을 알아보기 위하여 플로우 설문지(최인수, 1995)를 사용하였다. 프로그램 실시 결과, 플로우 경험 영역으로는 27.6%가 ‘게임’(27.6%), ‘스포츠’(14.7%)와‘음악’(14.6%), ‘친목’(14.2%)의 순으로 나타났다. 즉, 자신이 좋아하면서 값어치 있는 일과 흥미와 성취감을 느끼는 영역에서 플로우를 가장 많이 경험하고 있었다. 프로그램의 효과에 있어서 처치집단과 무처치집단간에 플로우 경험 정도에 있어서 전체적으로 의미있는 차이가 발견되지 않았다. 그러나 성별로 구분해본 결과, 남학생만 유의한 차이를 나타냈다. 이러한 결과는 우선 프로그램의 길이와 실시 기간 5회기로서 주관적 경험의 질을 변화시키기는데 충분한 효과를 나타내기에는 짧았다고 볼 수 있다. 남학생들의 경우 단기 프로그램임에도 불구하고 처치집단과 무처치집단간에 차이가 나타났다는 점은 주목할 만 하다. 플로우 경험과 상관이 높은 변인으로서 자아존중감의 경우 전체 집단참가자 분만 아니라 남녀모두 유의미한 차이를 보였으나 자기효능감에 있어서는 남학생의 경우에서만 유의미한 차이를 보였다.이 연구가 지닌 한계점과 시사점으로는 1) 참가자들로 하여금 주관적 경험에서의 변화를 충분히 인식하고 표현할 수 있을 정도의 범위로 프로그램의 길이와 내용을 확장할 필요가 있으며 2) 플로우 경험에 있어서 어떤 특성이나 요인들이 남녀간 차이를 유발하는지에 관한 후속연구가 진행되어야 할 것이다 3) 또한 추수기간 설정을 설정함으로써 프로그램의 장기적 효과에 대한 검토가 이루어져야 한다는 점 등을 들 수 있다. The purpose of this study was to develop a group counseling program to facilitate the excellence for adolescents and examine the effectiveness of this counseling program which utilized the concept of the Flow Development Model in Positive Psychology. This counseling program consisted of five sessions in total and 37 middle school students divided by six groups participated in this study. To measure the effectiveness of this counseling program, Flow Scale for Adolescents (Chang-Ho Lee, 2002), Self-efficacy Scale (Hye-Young Hong, 1995), and Selfesteem Scale (Chang-Ho Lee, 2002) were used before the program started and after the program finished. In addition, Flow Questionnaire (In-Soo Choi, 1995) was used to explore the flow experiences for Korean adolescents. The results were as following: adolescents experienced flow when they played on-line game (27.6%), when they played the sports (14.7%), when they played the music (14.6%), and when they have a good time with their friends (16.2%). In other words, they experienced the flow when they had a fulfillment and an interest and when they did valuable and interesting activities. For an effectiveness of this counseling program, the level of flow experiences did not show a significant difference between control group and the group which experienced this counseling program. However, male students revealed a significant difference. This short-term counseling program was proven to be ineffective, because the length of this program was too short to change the values of life. Although the scores of self-esteem scale, as a relevant variable with a flow experience did not show a significant difference between two groups, the male students` scores of self-efficacy scale showed a significant between two groups. The limits of this study and suggestions for further studies were presented.

      • KCI등재

        주민자력의 주택개량을 위한 주거모델 선정 시스템 구축 및 시뮬레이션에 관한 연구

        이창호(Lee, Chang-Ho),백혜선(Parik, Hae-Sun) 한국도시설계학회 2009 도시설계 : 한국도시설계학회지 Vol.10 No.4

        본 연구는 주민들이 자신들의 의지에 따라 손쉽게 주택개량을 추진할 수 있도록 주거모델 선정 시스템을 구축하고, 실제의 대상지에 주거모델을 적용하여 그 변화상을 시뮬레이션 하였다. 연구방법으로서는 첫째, 박스형, 필로티형, 테라스형, 굴곡형, 응용형의 5가지 유형별로 필지단위 주거모델을 제시하였다. 다음으로 과거 15년간의 선행연구로부터 7가지 평가지표를 도출하여 각각의 주거모델에 대한 주거환경을 상대평가 방식으로 평가하였다. 둘째, 주민들이 자력으로 주택개량을 할 때 사업비 및 대지폭, 가구구성으로부터 주거모델의 후보군을 선정한 후, 주거환경을 평가하여 주민들이 자신에게 맞는 최적의 모델을 선정할 수 있는 시스템을 구축하였다. 마지막으로 셋째로는, 충남 서천군사지구의 주민들을 대상으로 설문조사를 실시하여 이를 바탕으로 시뮬레이션의 기본구상을 설정하고, 주거모델을 실제로 적용하여 지구의 변화상을 시뮬레이션 하였다. 도출된 연구성과는 정비지구 주민들이 자신들의 의지에 따라 손쉽게 주택개량을 추진할 수 있도록 해주는 가이드라인의 역할과, 담당공무원 및 사업시행자 등이 주택개량을 원활히 유도할 수 있도록 하는 매뉴얼의 역할을 담당할 수 있다. This study set up a selection system of housing models with self-evaluation results that induce the residents to self-improvement and simulated the changes of the test site with applying the new housing models. The research process and conclusions of this study are as follows. First, it proposes five types of housing models for a lot - Box type, Piloti type, Terrace type, Folded type and Complex type - for residents’ self-improvement, and they are evaluated by the 7 evaluation index based on the literature review over the past 15 years. Second, it suggests the selection system from which residents can judge each housing type with its factors - cost, width of each lot and household feature and select several alternations of housing model, and then select their own housing model with self-evaluation results by the 7 evaluation index, if they improve their housing environment. Third, it suggests the master plan for a test site - Chungnam Seochoen Gunsa area- based on the results of the residents’ survey, designs the site plan with the devised housing types and simulates the changes.

      • KCI등재

        웹 서비스 애플리케이션의 동적 성장을 위한 ESB와 에이전트 기반 프레임워크

        이창호,김진한,이재정,이병정,Lee, Chang-Ho,Kim, Jin-Han,Lee, Jae-Jeong,Lee, Byung-Jeong 한국정보처리학회 2007 정보처리학회논문지 A Vol.14 No.7

        유비쿼터스 컴퓨팅 환경에서는 이기종 플랫폼간의 상호작용과 빠른 환경의 변화에 대처할 수 있는 능력이 필요하다. 웹 서비스는 이러한 문제를 위해 이종의 분산 서비스 또는 자원들을 활용하고 조직하기 위한 방법을 제공한다. 그렇지만 서비스 요청 시, 의미 정보의 부족으로 원하는 서비스를 찾기가 어렵다. 시맨틱 웹 서비스는 의미 정보는 제공하지만 다양한 매칭에 대한 방법은 지원하지 않고 있다. 또한 웹 서비스를 이용해서 소프트웨어에 적응과 확장 능력을 제공할 순 있지만, 서비스들을 관리하고 운영하는 방법이 필요하다. 따라서 본 논문에서는 웹 서비스 애플리케이션의 동적 성장을 위해 ESB(Enterprise Service Bus)와 에이전트 기반의 프레임워크를 제안하고 유용성을 보이기 위한 프로토타입을 제시한다. Software adaptation may be required to interact between heterogeneous platforms and to react to rapid change of environment in ubiquitous computing. Web service provides a way to use heterogeneous and distributed services or resources to utilize and organize them. But it is not easy to retrieve appropriate services when we search services because web service lacks of semantic information. Semantic web service provides additional information of services, but it does not support a method to match them in various ways. We can adapt and extend web applications by using web service, but a method for management and administration is still needed. Therefore in this paper, we propose a framework for dynamic growing of web service applications based on ESB(Enterprise Service Bus) and agent and provide a prototype to show its usefulness.

      • SCOPUSKCI등재

        원형제트출구 전단류 조절에 따른 제트충돌면에서의 열전달 특성

        이창호,김영석,조형희,Lee, Chang-Ho,Kim, Yeong-Seok,Jo, Hyeong-Hui 대한기계학회 1998 大韓機械學會論文集B Vol.22 No.3

        The present experiment is conducted to investigate heat transfer characteristics on the impinging surface with secondary flows around circular nozzle jets. The changed vortex pattern around jet affects significantly the flow characteristics and heat transfer coefficients on the impinging surface. The effects of the jet vortex control are also considered with jet nozzle-to-plate distances and main jet velocities. The vortex pattern around a jet is changed from a convective instability to an absolute instability with a velocity suction ratio of the main jet and the secondary counterflow. With the absolute instability condition, the jet potential core length increases and the heat transfer on the impinging surface is increased by small scale eddies. The region of high heat transfer coefficients is enlarged with the high Reynolds number due to increasing secondary peak values. The effect of suction flows is influenced largely with collars attached the exit of the jet nozzle because the attached collar guides well the counterflow around the main jet.

      • KCI등재

        주민자력의 주택개량을 위한 가구단위 주거모델 선정에 관한 연구

        이창호(Lee Chang-Ho),백혜선(Paik Hae-Sun) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.10

        Korean Government launched the local improvement project on May, 2007 that was a public-based model project for setting up the base for further renewal in terms of social renewal. This study researched 12 deteriorated residential area case for devicing housing types and a selection system with self-evaluation results that induce the residents to self-environment improvement and provides an easy reference. The study is concluded as follows. First, it proposes four types of block housing models for residents' self-environment improvement, and is evaluated by the evaluation index based on the literature review over the past 15 years. Second, it suggests the selecting system from which residents can judge each housing type by its factors-cost, the number of households and layers, and select their own model, if they improve their housing environment. Third, it suggests the master plan for a test site, designs the site plan with the devised housing types and simulates the changes. It can be used as a guideline for inducing the residents to self-environmental improvement and easy improvement in their own way, and also a manual for government officials and professionals to promote the local improvement project in actuality.

      • PET/CT 검사에서 환자체형에 따른 적정검사 프로토콜에 관한 고찰

        조석원,함준철,강천구,반영각,이승재,임한상,이창호,박훈희,Cho, Seok Won,Ham, Joon-Chul,Kang, Chun Goo,Bahn, Young Kag,Lee, Seung Jae,Lim, Han Sang,Lee, Chang-Ho,Park, Hoon-Hee 대한핵의학기술학회 2013 핵의학 기술 Vol.17 No.2

        Purpose: Whole-body PET using radiopharmaceutical is one of the imaging study methods for physiological changes of body. High specificity of the PET-CT examination is used to detect an early stages of cancer and metastatic cancer by imaging a physiological changes. During the imaging process, PET image has been characterized by a relatively low image quality due to its low sensitivity and the acquisition of random and scatter coincidences as well as patients figure. Therefore, the image quality as the changes of the acquisition times of patient weight was evaluated in this study. Materials and Methods: Thirty patients who presented to our hospital were enrolled. They were divided to normal, overweight, and obese group using BMI index, respectively. The patients with a liver disease and diabetes were excluded. $^{18}F-FDG$ was administered to the patients as 5.2 MBq per kg. After an hour from an injection, image acquisition was obtained as List mode in a part of liver in 1 bed. SNR (signal-to-noise ratio) of each groups acquisition times were confirmed from the calculated radiation counts and random fractions. The statistical significance of three groups was confirmed through one-way ANOVA test. On the basis of the counts of 2 minutes on normal group, the SNR of overweight group and obese group were compared. Results: The SNR were increased with loger aquisition time in 3 groups. In the condition of same acquisition time, the SNR had a statistical significance (P<0.05). The SNR were decreased to the normal, overweight, and obese, respectively. Liver activity had no significance difference on each group and RF had the significance differences (P<0.05). On the basis of the counts of 2 minutes on normal group, there were no statistical significance in a three minute acquisitions of overweight group and two minute acquisitions of obese group (P=0.150). Conclusion: In this study, the administrated amount of radiation dose did not adjust as the change of the patients weight. Increasing the acquisition time when the administration of the same amount of dose was able to get a good result of SNR. When the Based 2 minute on normal group, if overweight and obese case the increased acquisition time of 3 minute was able to obtain a similar SNR. On the basis of the normal group, the acquisition times of overweight and obese group were increased to 3 minutes per bed and the SNR were similar to the normal group.

      • KCI등재후보

        수술을 시행한 갑상선 우연종의 임상적 고찰

        이창호,윤현조,정성후,Chang Ho Lee,Hyun Jo Youn and Sung Hoo Jung 대한갑상선-내분비외과학회 2006 The Koreran journal of Endocrine Surgery Vol.6 No.1

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        Purpose: An incidentaloma is a tumor that is found incidentally without clinical symptoms. This study was carried out to evaluate the clinicopathologic characteristics and to offer the optimal diagnostic and therapeutic strategies for surgical treated thyroid incidentaloma. Methods: We reviewed the medical records of 139 consecutive patients who were operated on for incidentally detected thyroid nodules from January 2000 to June 2005, and we retrospectively investigated the clinicopathologic characteristics, preoperative diagnostic methods, operative methods and histologic diagnosis of surgical treated thyroid incidentaloma. Results: The male-to-female ratio was 1:9.7 (13:126) and the mean age was 45.8 years. The mean tumor size was 1.27 cm and 122 cases (87.8%) were 1.5 cm or less in diameter. 138 patients underwent ultrasonography and 34 patients (24.6%) were diagnosed with malignant nodules. US-guided fine needle aspiration cytology (FNAC) was performed in 118 patients and 42 patients (35.6%) were diagnosed with papillary carcinoma. According to postoperative histologic diagnosis, 70 cases (50.3%) were adenomatous goiter, 14 cases (10.2%) were follicular adenoma and 54 cases (38.8%) were papillary carcinoma. Among the papillary carcinoma, capsular invasion were presented in 3 cases (5.6%) and lymph node metastasis were presented in 5 cases (9.3%). According to the TNM staging, 33 cases (61.1%) were stage I, 16 cases (29.6%) were stage II, and 5 cases (9.3%) were stage? By the AMES scoring system, 2 cases (3.7%) were in the high risk group.Conclusion: Although most patients with incidental thyroid carcinomas were low stage, their clinicopathologic characteristics were similar to those of general thyroid carcinoma. Therefore, high risk patients with thyroid incidentaloma should have active diagnostic methods performed such as FNAC for confirming the presence of carcinoma. (Korean J Endocrine Surg 2006;6:12-16)

      • SCOPUSKCI등재

        알칼리성 Prottease를 생산하는 Xanthomonas sp. YL-37의 분리 및 조효소의 성질

        이창호,권태종,강상모,서현효,권기석,오희목,윤병대,Lee, Chang-Ho,Kwon, Tae-Jong,Kang, Sang-Mo,Suh, Hyun-Hyo,Kwon, Gi-Seok,Oh, Hee-Mock,Yoon, Byung-Dae 한국미생물 · 생명공학회 1994 한국미생물·생명공학회지 Vol.22 No.5

        A bacterial strain, which showed the high protease activity at low temperature and the high tolerance for the surfactant, was isolated from soil and identified as Xanthomonas sp. YL-37. The optimal temperature, initial pH, and cultivation time for the production of the alkaline protease by Xanthomonas sp. YL-37 were 20$\circC , 11.0, and 84 hours, respectively. In the jar fermenter culture of Xanthomonas sp. YL-37, the alkaline protease activity was about 15,000 DU/ml/-broth after cultivating for 108 hours. The optimal pH and temperature for the protease activity were 70$\circC and 11.0, respectively. The protease was relatively stable at the pH range of 7.0~12.0 and at the temperatures below 50$\circC . The protease activity at 20$\circC was about the level of 40% of its activity at 70$\circC . The enzyme was suggested as a serine protease because the enzyme activity was inhibited by phenylmethane sulfonyl fluoride, a serine modifier.

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