• 감성과학
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• 제21권3호
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• pp.103-114
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• 2018

SPANE(the Scale of Positive and Negative Experience) 척도는 기존 정서 측정도구의 한계를 보완하기 위해 Diener 등(2010)이 개발한 정서적 안녕감 척도이다. 이 척도는 긍정적 정서와 부정적 정서 경험을 측정하는 총 12문항으로 구성되어 있으며, 포괄적 정서(e.g. positive, negative)와 구체적 정서(e.g. joyful, sad) 문항이 포함되어 있다. 각성수준의 측면에서도 고(e.g. joy, angry), 중(e.g. happy, afraid), 저(e.g. contented, sad) 각성 정서들이 모두 반영되어 있다. 본 연구는 한국판 SPANE 척도의 요인구조 및 성별 측정 동일성을 검토하였다. 이를 위해서, 한국 대학생 총 551명(남자 276, 여자 275)의 자료를 분석했다. 그 결과, SPANE 척도는 양호한 수준의 신뢰도와 요인 타당도를 보였다. 또한 남녀 집단 간에 요인구조, 요인부하량, 절편이 동일한 것으로 나타나서, 성별 척도 동일성이 확인되었다. 이러한 결과는 SPANE 척도가 한국에서도 대학생들의 정서적 안녕감을 측정하기에 적합한 척도일 뿐 아니라 성별 차이를 비교하는 타당한 도구가 될 수 있음을 시사한다.

• Earthquakes and Structures
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• 제12권4호
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• pp.425-436
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• 2017

Vibration control using a tuned mass damper (TMD) is an effective technique that has been verified using analytical methods and experiments. It has been applied in mechanical, automotive, and structural applications. However, the damping of a TMD cannot be adjusted in real time. An excessive mass damper stroke may be introduced when the mass damper is subjected to a seismic excitation whose frequency content is within its operation range. The semi-active tuned mass damper (SATMD) has been proposed to solve this problem. The parameters of an SATMD can be adjusted in real time based on the measured structural responses and an appropriate control law. In this study, a stiffness-controllable TMD, called a leverage-type stiffness-controllable mass damper (LSCMD), is proposed and fabricated to verify its feasibility. The LSCMD contains a simple leverage mechanism and its stiffness can be altered by adjusting the pivot position. To determine the pivot position of the LSCMD in real time, a discrete-time direct output-feedback active control law that considers delay time is implemented. Moreover, an identification test for the transfer function of the pivot driving and control systems is proposed. The identification results demonstrate the target displacement can be achieved by the pivot displacement in 0-2 Hz range and the control delay time is about 0.1 s. A shaking-table test has been conducted to verify the theory and feasibility of the LSCMD. The comparisons of experimental and theoretical results of the LSCMD system show good consistency. It is shown that dynamic behavior of the LSCMD can be simulated correctly by the theoretical model and that the stiffness can be properly adjusted by the pivot position. Comparisons of experimental results of the LSCMD and passive TMD show the LSCMD with less demand on the mass damper stroke than that for the passive TMD.

• 한국의류학회지
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• 제43권2호
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• pp.274-287
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• 2019

Most corporations engage in Corporate Social Responsibility (CSR) activities. Consumers are aware of CSR activities in different domains and use the perception and evaluation in purchase decision making. This study reveals how the relationship between consumer perception about a fashion corporation's CSR activities and product evaluation (such as perceived expertise and attractiveness) affects behavioral intention. This study discussed implications for store designs depending on whether it is actively engaging in CSR communication. Two virtual fashion store images of modern or eco design were used as stimuli. The study was conducted from July to August, 2018 based on women in their 20s and 30s. We collected 154 eco designs and 157 modern design responses. The findings of the study show that consumer perceptions of CSR activities affected perceived expertise and attractiveness. Further, perceived expertise and attracti-veness led to purchase intention and time spent in the store. The store design variation had no differences in mean values of consumer perception; however, evaluation and purchase intention indicated that a varied store design emphasized different corporation capabilities.

• IEIE Transactions on Smart Processing and Computing
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• 제3권2호
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• pp.65-73
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• 2014

An overall responding security-centered framework is necessary required for infringement accidents, failures, and cyber threats. On the other hand, the correspondence structures of existing administrative, technical, physical security have weakness in a system responding to complex attacks because each step is performed independently. This study will recognize all internal and external users as a potentially threatening element. To perform connectivity analysis regarding an action, an intelligent convergence security framework and road map is suggested. A suggested convergence security framework was constructed to be independent of an automatic framework, such as the conventional single solution for the priority defense system of APT of the latest attack type, which makes continuous reputational attacks to achieve its goals. This study suggested the next generation convergence security framework to have preemptive responses, possibly against an APT attack, consisting of the following five hierarchical layers: domain security, domain connection, action visibility, action control, and convergence correspondence. In the domain, the connection layer suggests a security instruction and direction in the domains of administrative, physical and technical security. The domain security layer has consistency of status information among the security domain. A visibility layer of an intelligent attack action consists of data gathering, comparison and decision cycle. The action control layer is a layer that controls the visibility action. Finally, the convergence corresponding layer suggests a corresponding system of before and after an APT attack. The administrative security domain had a security design based on organization, rule, process, and paper information. The physical security domain is designed to separate into a control layer and facility according to the threats of the control impossible and control possible. Each domain action executes visible and control steps, and is designed to have flexibility regarding security environmental changes. In this study, the framework to address an APT attack and load map will be used as an infrastructure corresponding to the next generation security.

• 한국조사연구학회지:조사연구
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• 제7권2호
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• pp.71-95
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• 2006

이 글에서는 복잡한 설문구조를 가진 사회조사에서 CAPI를 활용할 때 나타날 수 있는 장점을 고령화연구패널조사(Korean Longitudinal Study of Ageing: KLoSA) 제1차년도 조사 및 예비조사에서 실제 작성한 CAPI 설문 사례를 가지고 살펴보았다. 특히 CAPI 활용이 자료의 질(data quality)을 어떻게 향상시켜 줄 수 있는가에 초점을 맞추어 다음과 같은 다섯 가지 측면에서 살펴보았다. 첫째, CAPI는 설문 논리와 경로 구조화, 응답 범위 설정, 응답 일관성 유지 등을 통하여 응답 오류를 줄여준다. 둘째, 응답자 맞춤식 설문 문항 작성, 자동 계산 및 채점, 도움말 탑재 등을 통하여 면접의 편의성을 제고시켜 준다. 셋째, 설문 문항의 순서를 무작위로 배치할 수 있어서 보기 순서 효과나 문항 순서 효과를 방지하여 준다. 넷째, 항목 무응답을 감소시켜 응답률을 높이는 효과가 있다. 다섯째, 면접 상황을 모니터링하여 설문을 개선하거나 면접원을 감독하는 데에 도움을 준다. CAPI가 가진 이와 같은 특성은 면접 과정에서 발생할 수 있는 오류를 감소시키고, 또한 면접 편의성을 제고하여 면접의 흐름을 자연스럽게 만들어준다.

• 한국해양공학회지
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• 제29권6호
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• pp.488-498
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• 2015

This paper presents the dynamic model of an AUV called HW200 for underwater surveillance. The mathematical model of HW200 is briefly introduced, considering its shape. The maneuvering coefficients were initially estimated using empirical formulas and a database of vehicles with similar shapes. A motion simulator, based on Simulink of Mathworks, was developed to evaluate the mathematical model of the vehicle and to tune the maneuvering coefficients. The parameters were finely tuned by comparing the experimental results and simulated responses generated with the simulator by applying the same control inputs as the experiment. The velocity of HW200 in the tuning process was fixed at a constant forward speed of 1.83 m/s. Simulations with variable speed commands were conducted, and the results showed good consistency in the motion response, attitude, and velocity of the vehicle, which were similar to those of the experiment even under the speed variation. This paper also discusses the feasibility of its application to a model-based integrated navigation system (INS) using the auxiliary information on the velocities generated by the model.

• 초등상담연구
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• 제9권2호
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• pp.163-173
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• 2010

본 연구는 초등학생의 학교부적응에 대한 교사보고형 척도를 개발하는 것이다. 초등학교교사의 응답을 통해 50개의 학교부적응 행동을 설정하였다. 하위척도를 확인하기 위하여, 60명의 교사가 240명의 학생의 행동을 평정한 자료에 대해 요인분석을 하였다. 그 결과 공격적 자기중심적 행동, 수업 및 학급규범 일탈행동, 소극적 비사회적 행동, 학교생활 적극적 기피 행동을 확인하였다. 타당도를 확인하기 위하여 120명의 학생자료에 대해 본 연구에서 개발한 척도와 초등학생 문제행동체크리스트(김혜숙, 황매향, 2009)간의 상관을 구하였고, 신뢰도를 확인하기 위하여 120명의 학생자료에 대해 본 척도의 내적합치도와 검사-재검사 신뢰도를 산출하였다. 연구결과 본 연구에서 개발한 초등학생의 학교 부적응에 대한 교사보고형 척도는 타당하고 신뢰로왔다.

• 한국콘텐츠학회논문지
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• 제22권3호
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• pp.513-528
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• 2022

본 연구는 한국의 게임 관련 이슈에 대한 분석과 게임 관련 계획·예산 등 정책에 대한 분석을 진행하여, 향후 관련 정책의 실효성을 높이고, 해당 정책의 사회적 통념과의 일치성을 높이고자 하는데 목적이 있다. 한국은 '음반·비디오물 및 게임물에 관한 법률'로 최초 게임을 규정하고 관련 법제를 확립한 이후 게임산업 진흥과 이스포츠 진흥 등 다양한 법제를 확립해왔다. 하지만 게임산업은 지속적으로 발전하고 있으며, 그 변화 속도는 4차 산업과 AI, 메타버스(metaverse) 등의 등장으로 더욱 빨라지고 있다. 본 연구에서는 이러한 배경에 따라 한국의 신문기사의 변동을 운형함수와 텍스트마이닝 방법으로 분석하여 관련 이슈화를 분석하고, 이슈의 증폭이 나타난 시점에서의 신문기사 내용을 분석해봄으로써 게임 관련 정책에 대한 환류(feedback)를 진행하여 향후 게임 관련 정책에서 다루어야 할 주요 쟁점과 발전방향을 제시한다. 분석결과, 게임 관련 이슈는 다양하게 나타났으며, 게임 관련 규제(과세, 도박 규제, 게임중독 질병화, 수수료 확대 저지) 등과 정부와 지자체의 지원이 공존하였다. 정부는 규제에도 불구하고 지원의 증대와 게임진흥정책에 따라 본 연구에서는 메타버스, NFT 등이 게임에 적용됨으로써 나타나는 문제의 선제적 대응과 게임 관련 전문가 육성, 스타트업 지원, 인력이탈 방지 지원 등을 정책적 함의로 제시한다.

• 한국전기전자재료학회논문지
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• 제35권3호
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• pp.232-240
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• 2022

A variable vacuum capacitor (VVC), which is a variable element, is used to match impedance in plasma that changes with various impedance values, and its use is expanding with the rapid growth of the semiconductor business. Since VVCs have to secure insulation performance and vary capacitance within a compact size, electrode design and manufacturing are very important; thus, various technologies such as part design and manufacturing technology and vacuum brazing technology are required. In this study, based on the model of an advanced foreign company that is widely used for impedance matching in the manufacture of semiconductors and displays, a VVC that can realize the same performance was developed. The electrode part was designed, the consistency was confirmed through analysis, and the precision of capacitance was improved by designing a cup-type electrode to secure the concentricity of the electrode. As a result of the evaluation, all requirements was satisfied. We believe that self-development will be possible if satisfactory responses are received through evaluation by VVC consumers in the future.

• 대한영양사협회학술지
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• 제14권1호
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• pp.87-96
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• 2008

The purposes of this research were to investigate in-patients' perception on foodservice quality and to examine factors influencing their meal consumption at hospitals. Three general hospitals with over 400 beds in Seoul and Chon-An agreed to participate in the research. A total of 516 in-patients of the hospitals were surveyed on their meal consumptions, reasons of plate wastes, perceptions of foodservice quality, and demographic information. A response rate was 76% after excluding responses with significant missing data. On average the regular diet patients consumed 72%, 69%, and 68% of rice, soups, and side dishes served, respectively; the therapeutic diet patients consumed less than 70% of the meals they were served. The consumption rates did not differ significantly by diet type, gender, age, and hospitalization period. Among the therapeutic diet patients, those who had nutrition education consumed significantly more rice than the others (p<0.05). The main reasons why the patients did not eat all food served were 'lack of energy' and 'not tasty'. The patients' perception on foodservice quality was low; the therapeutic diet patients perceived more negatively than the regular diet patients in 'keeping hot food hot, cold food cold(p<0.05)', 'maintaining consistency of taste(p<0.01)', and 'providing nutrition information(p<0.01)'. To achieve the goal of the foodservice at hospitals, the dietitians can use the findings of the research in developing and implementing strategies to improve the patients' meal consumption. Recipe standardization, employee training, and production management will be useful for improving food quality and nutrition education on therapeutic diets for the patients will improve their meal consumption at hospitals.