• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.1A
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• pp.35-40
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• 2011

The complex-valued blind algorithm based on a set of randomly generated symbols and Euclidean distance can take advantage of information theoretic learning and cope with the channel phase rotation problems. On the algorithm, in this paper, the effect of kernel size has been studied and a kernel-modified version of the algorithm that rearranges the forces between the information potentials by kernel-modification has been proposed. In simulation results for 16 QAM and complex-channel models, the proposed algorithm show significantly enhanced performance of symbol-point concentration and no phase rotation problems caused by the complex channel models.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.75-77
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• 2022

본 논문에서는 복합 개체 센싱(다축 멀티 센서)이 적용되고 수중 다이빙 시 몸통, 핀 부분의 동작 정보를 수집하여 수중 활동 시 발차기, 몸통 회전, 몸통 위치, 이동 속도 등의 움직임 정보를 수집 할 수 있도록 구성하여 다이빙 시 발생되는 다양한 동작 정보를 실시간 수집 할 수 있는 웨어러블 시스템 개발을 제안한다. 다이빙 Suit, 몸에 탈부착이 가능하도록 구성하여 개인의 수중 다이빙 상황을 실시간 정보 수집을 통하여 객관적으로 다이빙 자세, 공기소모와 의 관계 분석, 다이빙 습관 교정, 속도 조절 등 자가 진단 체계화 정보 구축하고, 다이빙 포함 다양한 해양 스포츠의 훈련 이슈는 수중에서 발생되는 문제를 객관화된 정보 없이 강사, 훈련생의 느낌으로만 교정 한다는 의미에서 보다 객관화된 센싱 정보와 복합적으로 수집 분석된 정보를 학습된 정보의 비교분석에 의하여 수중 다이빙의 문제점을 교정 할 수 있다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.3
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• pp.13-22
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• 2014

This article investigates the effects of prior firm founding experience, prior firm's performance, same industry matters, entrepreneurship communities or educations on subsequent firm performance. This study also explores whether same industry matters and entrepreneurship communities or educations have interaction effects between entrepreneurial experience and subsequent firm performance. The results show that prior firm founding experience and prior firm's performance have a positive effect on subsequent firm performance. The rest of variables have no significant direct effects on firm performance. However, same industry matters and entrepreneurship communities or educations have interaction effects of entrepreneurial experience on firm performance. Based on results of this empirical study, this study draws some implications that entrepreneurs can become serial entrepreneurs and experience entrepreneurial success.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.206-213
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• 2018

For sustainable management under uncertainty, organizations should explore factors influencing organizational creativity. This research examined affective commitment as the factor expected to increase organizational creativity. Clarifying the relationship between affective commitment and organizational creativity, we consider training motivation as a moderator. The participants in this empirical study were 472 employees and 64 firms' CEO to confirm hypotheses that training motivation make strengthen the positive relationship between affective commitment and organizational creativity. Results showed that organizational creativity was associated with affective commitment. Moreover, there was a moderating effect of training motivation on the relationship between organizational commitment and organizational creativity. This study attempted to avoid common method bias by using different sources such as CEO's response and employees' response. The implications for future research are discussed, including exploring the mechanism of organizational creativity and practice.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.33 no.4
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• pp.1591-1601
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• 2013

In this study, It is conducted for novice drivers about driving behavior and psychological characteristics analysis to reduce traffic accident risk and provide the basic data of education program development. Therefore, this study classified by the category-specific characteristics and hazard prediction through survey of the novice driver and unpredictable behavior and psychological characteristics were studied. The novice and general characteristics and driving behavior with vehicle simulators, comparison and analysis of the novice driver traffic safety education basic research direction based on the statistical results. Prediction the results of this study, the Hazard of the driver, speeding, traffic violation, information providing omission, abrupt change, the number of accidents in all areas novice driver is high compared to the general driver. In addition, Novice driver showed a statistically significant level of Hazard compared to the general driver target novice drivers and the general ability to predict Hazard of violation, abrupt change, and a number of traffic accidents were omitted level of speeding and other information providing level drivers all showed similar results. Vehicle simulator. The experimental results showed that novice drivers compared to drivers poorly overall driving performance. It showed a notable difference in the number of collisions, especially novice drivers compared to drivers in complex road traffic conditions due to a lack of driving experience and learning ability are considered.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.34 no.12
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• pp.1865-1870
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• 2010

We develop an IPMC actuator with self-sensing behavior based on an accurate neural network model (NNM). The supplied voltage and voltage signals measured at two determined points on both sides of the IPMC sheet are used as inputs to the NNM. A CCD laser displacement sensor is installed in the rig for accurate measurement of the IPMC tip displacement that is used as the training output of the proposed NNM. Consequently, the NNM model is used to estimate the IPMC tip displacement; the NNM parameters are optimized by the collected input/output training data. The effectiveness of the model for the IPMC actuator is then verified by modeling results.

• Korean Journal of Health Education and Promotion
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• v.14 no.2
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• pp.59-68
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• 1997

당뇨병은 고혈당을 조절 안할 경우에는 돌이킬 수 없는 신체적 합병증은 물론 정신적 손상까지 받지만, 고혈당은 노력만 하면 조절이 가능하며, 정상에 가까울 정도로 조절되면 정상인과 같은 삶을 영위할 수 있다. 그러나 보건의료 전문가의 인슐린 주사 요법, 식사 및 운동요법 등의 일방적인 처방만으로 성공적인 당조절을 기대하기에는 어려움이 있다. 그래서 당뇨병 환자에게 당뇨병이라는 것이 무엇이며, 어떻게 이 병을 스스로 조절할 수 있게 만드느냐가 더욱 중요한 것이다. 따라서 우리나라에서도 당뇨병에 대한 관심이 높아짐에 따라 각 지역과 의료기관마다 다양한 당뇨병 교육 프로그램이 실시되고 있다. 특히 소아 당뇨병 환자는 이러한 전통적인 당뇨병에 관한 교육을 통해서 당뇨병에 관한 지식은 많이 가지고 있지만, 당뇨병 자가 조절을 위한 환자 역할 행위(sick-role behavior)를 변화시키는데는 그다지 성공절이라 할 수 없다. Bandura(1977)는 자기 효능은 ‘할 수 있다는 자신감’으로 수행 성취, 대리 경험, 언어적 설득, 정서적 각성에 관한 정보에 의해 결정된다고 하였다. 따라서 이러한 정보들은 자기 효능을 증진시키기 위한 중재의 방향을 제시해 준다. 오늘날 이러한 정보를 활용한 중재 프로그램 중에서 가정과 학교를 떠나 자연 환경 속에서의 집단 활동을 통하여 사회 학습 경험을 하는 캠프 프로그램에 대한 관심이 높아지고 있다. 캠프에 참여한 당뇨병 아이들은 캠프 활동속에서 다른 동료 아이들이 자신이 갖고 있는 문제들을 성공적으로 해결해 나가는 것을 관찰하여 대리 경험하게 될 때 희망을 가지게 되며, 당뇨병을 가진 다른 동료들과 공통의 경험을 공유할 수 있는 기회를 갖게 되어 그들은 자신이 더 이상 혼자가 아니며 남과 ‘다르지’도 않다는 것을 깨닫게 되어 점차 자신감을 가지고 살아갈 수 있게 된다. 본 연구는 캠프 프로그램이 소아 당뇨병의 자기 효능을 증진시키고, 당뇨병 환자 역할 행위 이행 정도를 높여주는지를 규명해 봄으로써, 소아 당뇨병 환자를 위한 효과적인 간호 중재 방안을 제시하고자 비동등성 대조군 전후 실험 설계의 유사 실험 연구를 시도하였다. 1996년 8월 10일 부터 12월 12일까지 종합병원에서 추후 관리하고 있는 소아 당뇨병 환자중 선정 기준에 맞는 환자 41명을 연구대상으로 하였으며, 그 중 19명은 실험군으로 Bandura의 자기 효능 증진을 위한 정보원을 활용한 캠프 프로그램을 5박 6일간에 걸쳐 실시하였고, 다음 22명은 대조군으로 캠프 프로그램을 실시하지 않았다. 자료수집은 자기 효능 척도와 환자 행위 역할 이행 척도를 캠프 프로그램을 실시하기 전에 사전 조사를 하고 중재 후 4주째 사후 조사를 하였다. 수집된 자료는 SPSS/PC+로 Chi-square test, t-test, ANCOVA, Pearson correlation을 이용하여 분석하였으며, 그 결과는 다음과 같다. 캠프 프로그램은 소아 당뇨병 환자의 자기 효능을 증진시키고 환자 역할 행위 이행을 높여주는데 효과적 이었다. 소아 당뇨병 환자의 자기 효능은 환자 역할 행위 이행과 순 상관 관계가 있어, 자기 효능이 증진될수록 환자 역할 행위 이행 정도가 높아졌다.

• Journal of Digital Convergence
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• v.17 no.12
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• pp.413-425
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• 2019

This study was conducted to identify factors affecting depression in junior nursing students(JNS). The number of the participants was 144 at a college in S and G city. The data were collected using questionnaires about somatic symptoms(SS), sleep quality, stress, adaptation to college life(AC), depression. Mean score of depression was 18.89, 58.3% are experiencing depression that requires clinical treatment. The significant predictors of JNS were levels of depression AC(β=-.503, p=.000) and SS(β=.263, p=.000) respectively, explaining 58.9% of variance. In order to control the depressive symptoms of JNS, it is necessary to diagnose basic learning ability from the beginning of admission and provide guidance management plans to help students adapt to academic activities by providing customized programs for each level to improve learning ability. It is necessary to develop and apply various intervention programs to alleviate physical symptoms such as fatigue/low energy experienced by JNS.

• Journal of the Korean Society of Radiology
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• v.15 no.3
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• pp.381-390
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• 2021

The purpose of this study was to examine the lecture satisfaction of radiological science majors in total remote classes due to coronavirus disease 2019, and influencing factors were analyzed. An online survey was conducted from September 1, 2020 to November 15, 2020, lecture satisfaction, teaching presence, academic motivation, self efficacy, behavior regulation and usage simplicity of remote classes for 458 3 and 4-year radiological science majors located in the Yeongnam area. Lecture satisfaction was significantly different according to grade, self-review time, and preferred teaching method. In addition, lecture satisfaction showed a significant positive corrleation with the teaching presence and usage simplicity of remote classes. In the multiple regression model, lecture satisfaction showed a significant explanatory power of 45.7% through usage simplicity, teaching presence, self efficacy and academic motivation. This study was attempted to provide basic data to increase the effect of remote classes at universities that are expected to expand in the post-corona.

• Journal of the Korea Convergence Society
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• v.11 no.9
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• pp.433-441
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• 2020

This study was conducted to identify the factors that influence the other behaviors taken by nursing students during online lectures. The study subjects were 304 nursing students in three universities. Data were collected between April 20 and 30, 2020, using by completing structured self report questionnaires. Data were analyzed using T-test, ANOVA, Pearson's correlation coefficient, and multiple regression using SPSS 26.0 program. In correlation analysis, significant negative correlations were found between other behaviors, interest(r=-17, p<.01), understanding(r=-19, p<.01), needs(r=-12, p<.05), learning motivation(r=-12, p<.05), self-regulation efficacy(r=-11, p<.05), learning confidence(r=-14, p<.05), lecture satisfaction(r=-22, p<.01), lecture flow(r=-24, p<.01). In the multiple regression analysis, learning confidence, prefer to discuss & present (β=.19), lecture flow(β=-.15), lecture satisfaction(β=-.15) were statistically significant factors that explained 10.6% of variance of other behaviors taken by nursing students during online lectures. Thus, we suggest to develop that teaching methods and programs to reduce other behaviors taken by nursing students during online lectures.