• 한국정밀공학회지
• /
• 제18권1호
• /
• pp.89-97
• /
• 2001

A microgyroscope, which vibrates in two orthogonal axes on the substrate plane, is designed and fabricated. The shuttle mass of the vibrating gyroscope consists of two parts. The one is outer shuttle mass which vibrates in driving mode guided by four folded springs attached to anchors. And the other is inner shuttle mass which vibrates in driving mode as the outer frame does and also can vibrate in sensing mode guided by four folded springs attached to the outer shuttle mass. Due to the directions of vibrating mode, it is possible to fabricate the gyroscope with simplified process by using polysilicon on insulator structure. Fabrication processes of the microgyroscope are composed of anisotropic silicon etching by RIE, gas-phase etching (GPE) of the buried sacrificial oxide layer, metal electrode formation. An eletromechanical model of the vibrating microgyroscope was modeled and bandwidth characteristics of the gyroscope operates at DC 4V and AC 0.1V in a vacuum chamber of 100mtorr. The detection circuit consists of a discrete sense amplifier and a noise canceling circuit. Using the evaluated electromechanical model, an operating condition for high performance of the gyroscope is obtained.

• 한국농촌건축학회논문집
• /
• 제23권1호
• /
• pp.35-42
• /
• 2021

This study analyzed the path that affects the user's walking satisfaction on main street in four local government towns in Jeollanam-do. and as an empirical study to find the direction of improvement toward the main street from the perspective of walking, the results are as follows. First, it was found that the network had a direct (+) effect on walking satisfaction as a main street. In addition, it was analyzed that land use had no direct (+) effect on walking satisfaction on the main street, but had a direct (+) effect on the network. Second, it was analyzed from the fact that the walking environment does not have a direct (+) effect on walking satisfaction, but has a direct (+) effect on the network. and it was analyzed that the street-building relationship had a direct (+) effect on the street landscape, and the street landscape had a direct (+) effect on the walking environment. The study was completed by suggesting implications according to the above research results.

• 한국의상디자인학회지
• /
• 제24권3호
• /
• pp.169-184
• /
• 2022

This study aims to discuss sustainable fashion trends and sustainable design directions that fashion companies are practicing with ESG in the post-corona new normal era. As a research method, this study examined sustainable fashion trends and ESG practices through empirical case studies focusing on each fashion brand's website, including previous research and literature research, using materials such as newspapers and magazines. As for ESG practice plans, they were divided into four categories: technology orientation, design orientation, consumption orientation, and social value pursuit orientation. The sustainable fashion trends were also divided into four categories. First, the trend exhibits cyclical sustainability using pro-environmental materials, such as pro-environmental fibers, recycled fibers, biodegradable fibers. Second, high sensitivity and rare value sustainability were shown using reuse and upcycling. Third, consumption-oriented trends were promoted through slow fashion. Fourth, in order to realize eco-friendly sustainable fashion and ESG as practical ways to pursue social values, there is a trend of integrating sustainability through changes in perception considering people, society, and the environment. Beyond spreading concern about value consumption trends and the environment, it presents a direction for future industries concerning core values with social roles, responsibility, and ethical awareness from various perspectives.

• 패션비즈니스
• /
• 제26권5호
• /
• pp.135-152
• /
• 2022

This study aimed to evaluate the user experience of hearable devices for seniors and suggest possible development directions. A literature review, case study, and in-depth interviews were conducted. Based on the literature review, convenience, accessibility, transmissibility, wearability, aesthetics, and interest were determined as the user experience factors of hearable devices. Then, in-depth interviews were conducted with 12 participants aged 60 or older regarding four devices. Participants tried four different types of wireless earphones which were selected based on a case study: open-type, kernel-type, neckband-type, and earring-type. Regarding convenience, the participants preferred to carry small devices and regarding accessibility, participants responded positively for most product types. For transmissibility and wearability, there were differences depending on whether devices were put on correctly, but the participants preferred products that did not wholly block external sounds. For aesthetics, participants preferred small and cutting-edge designs. Interest was noticeable among those who had not used the devices before, and for stability, the neckband-type was the most preferred. Based on the results we suggest designing small cutting-edge designs and button-type assist devices, not blocking the external sound, providing a participation program, simplifying device functions, and establishing a method that can be combined with and stored in clothes and a delivery method that can signal danger.

• 대한인간공학회:학술대회논문집
• /
• 대한인간공학회 1992년도 추계학술대회논문집
• /
• pp.46-53
• /
• 1992

Finger movements in the sagittal plane mainly consist of flexion and extension about the metacarpophalangeal(MCP) and proximal interphalangeal(PIP) joints. A kinematic finger model was developed with the assumption of constant tendon moment arms. Equations of static equilibrium were derived for the finger model using the principle of virtual work. Equations of static equilibrium for the finger model were indeterminate since only three equations were available for five unknown variables(forces). The number of variables was reduced based on information on muscular activities in finger movements. Then the amounts of forces which muscles exerted to maintain static equilibrium against external loads were computed from the equilibrium equations. The muscular forces were expressed mathematically as functions of finger positions, tendon moment arms, lengths of phalanges, and the magnitude and direction of external load. The external finger strength were computed using the equations of muscular forces and anatomical data. Experiments were performed to measure finger strengths. Measurements were taken in combinations of four finger positions and four directions of force exertions. Validation of the finger models and of procedure to estimate finger strengths was done by comparing the results of computations and experiments. Significang differences were found between the predicted and measured finger strengths. However, the trends of finger strengths with respect to finger positions were similar inboth the predicted and measured. These findings indicate that the finger model and the procedure to predict finger strengths were correctly developed.

• 한국항행학회논문지
• /
• 제27권6호
• /
• pp.828-834
• /
• 2023

본 논문에서는 패치배열안테나에 혼 형상의 반사기를 적용하여 넓은 빔 폭을 형성하는 안테나를 연구하였다. 넓은 빔 폭을 구현하기 위해 정사각형 마이크로스트립 기판 상의 4개 방면에 3개의 패치들을 각각 배열하였고, 배열안테나 후방에 혼(Horn) 형상의 반사기를 각각 적용하였다. 이 구조를 통해 패치로부터 형성 된 수직 빔 패턴이 사선 방향으로 변환되었고 결과적으로 네개의 섹터에서 형성된 각각의 빔 폭이 더해져서 반구형에 가까운 넓은 빔 폭을 만들 수 있었다. 제안된 안테나는 UAV(unmanned aerial vehicle)에 적용하기 위해 연구되었고 모의시험결과, 4.5 dBi 빔 폭이 146.8°임을 확인하였다.

• 패션비즈니스
• /
• 제28권1호
• /
• pp.51-67
• /
• 2024

Recently, as the "Kidult" culture has become the culture of life, the vintage fashion doll market is rapidly emerging. This change, coupled with a tendency to cherish childhood memories among adults, shows a phenomenon that vintage dolls are gaining popularity. This study explored the possibility of creative fashion doll clothing design, aiming to satisfy consumers' more diverse and unique emotional needs and provide new perspectives and inspiration to the doll fashion industry and the fashion doll industry. Therefore, this study attempted to propose a fashion doll costume design using the Y2K fashion style that is currently popular. Based on publications and prior research considerations, the Y2K fashion style could be categorized into four main styles: 'Future Technology', 'The Matrix', 'Millennium Spice Girl', and 'Harajuku'. Based on characteristics of these four styles, this study designed and produced eight stylish doll costumes incorporating the Y2K style under themes of 'Ex Machina', 'Digital Warrior', 'Rebelious Sugar', and 'Harajuku Dopamine'. This can inspire fashion doll costume design and production based on trendy styles. This study can be a useful foundation for presenting more diverse directions for fashion doll costume design.

• Perspectives in Nursing Science
• /
• 제11권2호
• /
• pp.109-122
• /
• 2014

Purpose: The purpose of this study was to review research papers on structural equation models for hospital nurses' turnover intentions, and to identify the factors that influence these intentions. Methods: Twenty-four research papers on structural equation models for hospital nurses' turnover intentions were identified for systematic review. Results: All 24 papers assessed nurses' turnover intentions in general hospitals and university hospitals. A total of 36 indicators and 105 items were used to measure turnover intention. Turnover intention was positively related with 10 variables, and negatively with 17 variables. Organizational commitment, job satisfaction, job stress, burnout, organizational culture, and empowerment were found to have significant direct and indirect effects on nurses' turnover intentions. Structural equation models in 23 of the 24 research papers showed high compatibility with the data. The models accounted for 20.1% 68.0% of total variances. Conclusion: The study findings show recent trends in nurses' turnover intentions, and indicate directions for future research.

• 한국의류학회지
• /
• 제23권6호
• /
• pp.864-875
• /
• 1999

This study was done to classify type os arms and to correspond these types with partial somatotype of upper body such as lateral views of upper body shapes of shoulder. The subjects of this study were female college students of twenties 58 anthropometric and photographic data were measured. The results were as follows : 1. Form the factor analysis arm girth/armscye size factor arm length factor the slope of lower arm, arm factor the curves of armscye the roundness of arm/shapes of shoulder the slope of upper arm factor were obtained. 2. By using factor scores 4 clusters of arm types were extracted. The characteristics of these clusters were projections of armscy slant of lower arm thick-set canelike. 3. Four types of arm were corresponded with the specified lateral views of upper body directions of shoulder slopes of shoulder.

• 산업경영시스템학회지
• /
• 제36권2호
• /
• pp.25-31
• /
• 2013

This paper analyzed the management quality activities and performance based on industrial types. We divided the business into four industrial types, manufacturing industry, service industry, medical institution and public enterprise. We analyzed the differences of the elements of management quality in industrial types. The results show that leadership, measurement, analysis and knowledge management and workforce focus categories are not significant and strategic planning, customer and market focus, process management and performance categories are significant. This paper proposes the directions of management quality activities and performance according to industrial types based on these results.