MBE

강태원 대한전자공학회 1986 대한전자공학회 단기강좌 Vol.- No.-

GaN Pyramids Prepared by Photo-Assisted Chemical Etching

강태원,데준푸,G. P. Panin 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.III

GaN pyramids were formed by photo-assisted chemical etching of GaN epilayers grown by molecular-beam epitaxy. The etching was conducted by using a solution of KOH and K$_2$S$_2$O$_8$ under ultraviolet illumination. The pyramids are hexagonal, submicron in size, and nonuniformly distributed on the substrate. Energy-dispersive X-ray analysis revealed a Ga-oxide layer covering the pyramids. This oxide can be removed by boiling in concentrated KOH. Cathodoluminescence measured from the pyramids was redshifted with respect to the GaN epilayer. The main reason for the redshift is the field induced by the electric polarization of the pyramid structure.

국가교정검사기관의 전자파전력 측정정확도의 분석 및 평가

강태원,강웅택,박병권 대한전자공학회 1995 전자공학회논문지-A Vol.32 No.1

The aims of this study are to evaluate the measurement capability of the electromagnetic power and to understand the current state of standard maintanance of the eight participants among the thirteen national calibration and test organizations. The calibration factors were measured at six test frequencies, 50, 100, 500, 1000, 5000, 10000 MHz by organizations and KRISS on the basis of round robin test. The results were analyzed by calculating the standard deviation of the measured values from the standard values. The analysis shows good agreement within 1.0% for all participants at the measurement frequencies. Therefore, the measurement capability of all participants is good in the frequency range of 50 MHz to 10 GHz. For the four participants which specified standard deviations of repeated measurements in their reporst, the total uncertainties is less than 1.9% at the measurement frequencies.

커피프랜차이즈 최고경영자의 리더십이 혁신성과에 미치는 영향: 조직신뢰의 매개효과

강태원,양현근 한국프랜차이즈경영학회 2016 프랜차이즈경영연구 Vol.7 No.2

Purpose – This study aims to examine the impact of leadership on organizational trust and innovation performance, and to identify whether organizational trust plays a mediating role in the relationship between leadership and innovation performance. Also, this study attempts to find out how to improve organizational efficiency and effectiveness based on leadership-based or trust-based strategies. And, this research proposed that organizational trust plays a core mediating role in the relationship between transactional and transformational leadership and innovation performance. Research design, data, and methodology – In order to test the hypotheses of this study, the survey was conducted towards franchise coffee shop employees between November 7 and 18, 2016. We contacted top executives of coffee shop franchise headquarters and explained the purpose of this study. Among 150 questionnaires distributed, 123 were collected. Of these collected questionnaires, 102 questionnaires were coded and analyzed for further analysis. In order to test the unidimensionality and reliability of the factors, factor analysis and reliability test were performed using SPSS/PC+ 22.0. And, the hypotheses were tested using hierarchical mediated regression analysis. Result – The results are as follows. First, transactional leadership, and intellectual stimulation, motivation of transformational leadership had significant impacts on organizational trust. Second, organizational trust, transactional leadership, and influence of transformational leadership had significant impacts on innovation performance. Third, the mediating test of organizational trust showed that transactional leadership plays a partial mediator, and intellectual of transformational leadership plays a full mediator in the relationship between leadership and innovation performance. Conclusions – The implications of this study are as follows. First, the top management should provide their organizational members incentives or rewards based on their performance. Second, top management should identify and express a clear vision and desirable organizational goals for the future, present an idealized vision, and communicate to organizational members that the vision is achievable, also have organizational members to think creatively and find optimal solutions to difficult problems. In sum, this study revealed the important role of leadership in embedding organizational trust in and improving innovation performance of coffee shop employees and the mediating role of organizational trust in the influence of leadership on innovation performance.

Ziegler-Nichols와 Cohen-Coon 제어 이론의 실습을 위한 자동 유량제어 시스템의 구축

강태원,이호균,Kang, Tae-Won,Lee, Ho-Gyun 한국공학교육학회 2017 공학교육연구 Vol.20 No.4

Automatic flow control system composed by hardware and software was designed and fabricated to be used as teaching tool of feedback control theory in university experimental class. This system includes hardwares like data acquisition board, flow measuring device, transmitters, and the pneumatic valve, and software like LabView program for the monitoring and control of flow rates. The system was designed as the student can see the control effect of not only set point but also disturbance changes. Also the LabView program was composed for the calculation of controller parameters of both Ziegler-Nichols and Cohen-Coon tuning. The students can apply both tuning constants and compare the control performances. This system will provide the easy way for the students to understand the function and specification of control hardwares, and to raise the programing ability of control software.

군(軍) 기동장비에 수소에너지 적용을 위한 기술 연구

강태원,정우식 한국방위산업진흥회 2023 國防과 技術 Vol.- No.534

觀光開發에 대한 地域住民의 集團行動 特性과 役割 - 濟州道 猊來洞 地域을 事例로 -

강태원,김진,고동완 한국관광학회 2011 관광학연구 Vol.35 No.1

This study was to explore the characteristics and roles of residents' collective action against a tourism development plan in the rural community of Yere, Jeju. The residents of the region experienced collective actions against government plan of sewage treatment plant development and holiday resort development during the 1990s and 2000s. Data were collected from exhaustive in-depth interviews with thirty residents of Yere, Jeju in 2009. Results showed that the collective actions of the residents played four important roles in their community. First, residents' collective actions contributed to preserving and strengthening the identity of the community. Secondly, the residents' efforts to participate in the collective actions enriched collective efficacy of each individuals and the community as a whole. Results also showed that in the process of collective actions, residents' attachment to the community was also formed Finally, the collective actions also made a contribution to the preservation of natural environment and see-sights. 본 연구는 관광개발에 대한 지역주민의 집단행동이 지역사회에 미치는 긍정적인 영향은 무엇일까라는 의문에서 관광개발에 대한 지역주민의 집단행동을 지역사회론적 입장에서 논의한 것이다. 이를 위해서 제주도 예래동 지역을 연구대상지로 선정하고, 지역 언론보도, 문헌자료 등 및 30명의 지역주민을 대상으로 심층면접조사를 통하여 지역주민의 집단행동이 가지는 특성과 역할을 분석하였다. 연구결과 지역주민의 집단행동은 외부의 강압에 의해 지역사회의 변화가 예상될 때 발생하며, 집단행동의 형태와 강도는 과거의 경험을 바탕으로 대응하며 발전과 진화의 과정을 거친다고 할 수 있으며, 크게 네 개의 연구 결과가 도출되었다. 첫째, 관광개발에 대한 지역주민의 집단행동은 지역사회의 정체성을 보전하고 강화하는데 기여하였다. 둘째, 집단행동의 참여효과로써 개인적ㆍ집단적 효능감이 증진되었다. 셋째, 집단행동을 통해 지역애착심이 향상되었다. 예래동의 주민들은 자손들에게 물려주고 싶은 아름다운 자연환경과 사회․문화적인 환경을 지키고자 하는 ‘지역 애착심’과 지역사회를 더욱 발전시켜 자손들에게 물려주고 싶어 하는 ‘지역 애착심’이 동시에 나타냈다. 넷째, 집단행동은 자연환경 및 경관을 보전하는데 기여하였다. 무분별한 관광개발로 인하여 예래동의 환경에 대한 문제점을 새롭게 인식하게 된 결과, 지역주민 스스로 「예래환경연구회」를 조직하여 활발하게 환경보전과 환경개발에 앞장서고 있으며, 이러한 집단행동은 주변 환경에 대한 보전과 감시의 역할을 한다. 본 연구는 관광개발에 있어서 집단행동은 통상적으로 묘사되는 부정적 영향보다는 의사결정 과정에 지역주민의 집단적인 참여를 유도하며, 과격한 시위보다는 지역사회와 협력의 관계를 유도할 수 있다는 점에서 집단행동의 이해를 위한 중요한 기초가 될 것이다.

전송선을 이용한 마이크로파 영역에서의 복소유전율 및 투자율 측정상의 오차 해석 ( Error Analysis in Measurements of the Complex Permittivity and Permeability by Using Coaxial Transmission Line in Microwave Frequencies )

강태원,김정필,박위상 대한전자공학회 1989 대한전자공학회 학술대회 Vol.1989 No.5

중소기업 조직구성원의 자기효능감이 직무열의와 직무성과에 미치는 영향: 구조모형분석-인공신경망 분석의 적용

강태원,이용기,이용숙 한국벤처창업학회 2018 벤처창업연구 Vol.13 No.6

The purpose of this study is to analyze the impact of self-efficacy of SMEs’ organization members on job engagement and job performance, and to analyze the difference between gender and marital status by applying SEM-ANN analysis. To accomplish the study purpose, 285 valid samples were collected from 400 SMEs' organization members and analyzed. In this study, self - efficacy consisted of three sub-dimensions: self-confidence, self-regulation efficacy, and task difficulty preference. As a result of the analysis, self - efficacy such as self-confidence, self-regulation efficacy, and task difficulty preference had a positive direct effect on job engagement. In addition, self-efficacy and self-control efficacy have a positive effect on job performance, but the preference of task difficulty has no significant effect. In addition, job engagement has a positive(+) effect on job performance, and has a mediating role in the relationship between self-efficacy and job performance. Also, married males preferred self-regulation efficacy, while females preferred self-regulation and self-control efficacy regardless of marital status. The purpose of this study is to present the framework of self-efficacy-job engagement-job performance of SMEs by measuring the self-efficacy related researches mainly in education and service industries, and is meaningful that companies can help to find the basis of management of organization members by gender and marital status of organization members. In addition, the SEM-ANN analysis process of this study is different in that it explains the nonlinear (nonobservative) relationship that can analyze the influence or the combination of the reference variables in the linear (compensatory) relation using the SEM. 본 연구의 목적은 중소기업 조직구성원의 자기효능감이 직무열의와 직무성과에 미치는 영향을 연구하고 SEM-ANN (structural equation modeling-artificial neural network) 분석을 적용하여 성별 (gender)과 결혼 여부의 변수에 따른 차이를 분석하기 위한 것이다. 연구목적의 달성을 위하여 400명의 중소기업 조직구성원들로부터 자료를 수집하여 285명의 유효표본이 분석에 이용되었다. 본 연구에서 자기효능감은 자신감, 자기조절효능감, 그리고 과제난이도 선호의 세 가지 하위차원으로 구성되었다. 분석 결과, 자신감, 자기조절효능감, 그리고 과제난이도 선호 등의 자기효능감은 직무열의에 직접적으로 유의한 정(+)의 영향을 미치는 것으로 나타났다. 그리고 자기효능감 중 자신감과 자기조절효능감은 직무성과에 정(+)의 유의한 영향을 미치나, 과제난이도 선호는 유의한 영향을 미치지 않는 것으로 나타났다. 또한, 직무열의는 직무성과에 정(+)의 유의한 영향을 미치는 것으로 나타났으며, 자기효능감과 직무성과 간의 관계에서 매개역할을 하는 것으로 나타났다. 또한 미혼 남성은 과제난이도 선호 , 기혼 남성은 자기조절효능감을 가장 중요시하나, 여성은 결혼 여부에 관계없이 자신감과 자기조절효능감을 중시하는 것으로 나타났다. 본 연구는 주로 교육 및 서비스업종 등에서 이루어지고 있는 자기효능감 관련 연구를 다차원으로 측정하여, 중소기업 구성원들을 대상으로 하여 자기효능감-직무열의-직무성과 간의 프레임워크를 제시하고, 기업들이 조직구성원의 성별, 결혼 여부에 따른 조직구성원 관리의 근거를 찾는데 도움을 줄 수 있다는데 의의가 있다. 또한, 본 연구의 SEM-ANN 분석 과정은 지금까지 SEM을 이용한 선형적(보상적) 관계에서 영향 또는 기준 변수들의 조합을 분석할 수 있는 비선형적(비보상적) 관계를 설명한다는 점에서 차별성이 있다

성인 폐결핵의 방사선학적 소견에 관한 고찰

강태원,윤여성,원종진 대한영상의학회 1981 대한영상의학회지 Vol.17 No.3

During the period from March, 1980 to February, 1981 in the Department of Raiology, Jeonbug National University Hospital, we reviewed the raidiologic findings of 879 cases diagnosed pulmonary tuberculosis and 56 cases diagnosed tuberculous pleural effusion without lung parenchymal lesion on initial chest P-A film in adult(older than 16 years). The results were as follows. 1. Sex distribution of pulmonary tuberculosis was 668 cases(76%) in male, 211 cases (24%) in female, the average age 44.6, and the highest incidence in the third and sixth decade with similarity. 2. The incidence of pulmonary tuberculosis was highest in the springtime (29.5%) and its peak particularly in May. 3. Classifying the extent of pulmonary tuberculosis into minimal, moderately advanced and far advanced pulmonary tuberculosis, their ratio was 6 :1 , 5 : 1 with the concrete data of 553 cases (70.8%), 136 cases(17.4%), and 92 cases (11.8%) respectively. 4. In the cases of minimal pumonary tuberculosis t e location of TB -lesion incidence were right upper, left upper and both upper lobes in the ratio of 45 :27 : 28(%). 5. The radiological findigs of pulmonary tuberculosis appeared various, but the ill-defined patchy density of exudative reaction signifying an initial lesion were the most 935%). 6. As an unusual type of tuberculosis, cavitary TB was 38 cases(4.3%), among them, in 3 cases (7.9%) there appeared air-fluid level. Miliary TB was 8 cases (0.9%) , mostly abundant inthe youngsters (esp. in the third decade), and female immensely outnumbered male. Tuberculoma was 10 cases 91.4%), female precede male in the ratio of 7 ; 3 m and in right upper lobe the incidence was highest (50%). 7. Without lung parencymal lesions, the cases to have caused an tuberculous pleural effusion was 56 (6.0%), and in the years of 16 to 29 it was the most frequently with 26 cases(46.4%). 8. With complicated pulmonary tuberculosis, 78 cases (9.5%) showed to combine with other diseases. Among them pleura effusion was 14 cases (1.7%) , and pneumothorax 14 cases 91.7%) which were the most frequent. 9. Spread of tuberculosis beyond the lung to other organ was 28 cases ( 3.1%) and frequent in female. characteristically. Among them, bone and joint TB was 16 cases and the most abundant in number, inparteicular , spine TB was the most frequent with 10 cases(36%).