• 복식
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• 제55권8호
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• pp.99-111
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• 2005

The research analyzed the clothing attitude which it follows in type of performance musical instrument and a design preference moral difference. The result which tries to observe the clothing attitude which it follows in type of performance musical instrument and a design preference moral difference, it was visible a difference little by little. When comparison it tries the design which it prefers but consequently most in type of performance musical instrument, the big difference is not born and not to be putting the difference of the preference design which it follows in type of musical instrument specific your neck line, color, and silhouette of the vocal musician or wind music performer. When seeing whole, the clothing attitude regarding a performance luck compared to considered seriously an aesthetic pursuit and a convenient characteristic and harmonious, there design preference is the clothes which have no sleeve, neckline like camisole, black and pastel color, design with lots of decorations, princess silhouette, and they prefer the fabrics which have softness to it. Now, I want to introduce restriction of this research and proposal. First, the fundamental research of performance's clothes is insufficient with restricted point and the literature investigation is difficult, second, it was difficult to stretch the whole market for performers because of limitation for research volunteers. Only few volunteers are from college who are majoring in music.

• 대한조선학회논문집
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• 제52권6호
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• pp.444-451
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• 2015

Lifting lugs are frequently used in shipyard to transport and turn over blocks of ship and offshore structures. As the shipbuilding technology develops, blocks has become bigger and bigger, and block management technology takes a more important role in shipbuilding to enhance the productivity. For the sake of economic as well as safe design of lug structure, more rational design procedure based on the rigorous structural analysis is needed. This study is concerned with the optimum design of T type lug which is frequently used in shipyard. The optimum thickness of lug's main body is to be determined based on the results of non-linear strength analysis. As far as the present results for the present T type lugs having different capacity are concerned, it seems to be necessary to review the current design procedure of lug structure. The present design procedure can be extensively used in design of various types of lug structures used in shipyard.

• 대한의용생체공학회:의공학회지
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• 제39권3호
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• pp.134-139
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• 2018

One of the most common problems with pedicle screw system is pullout of the screw. This study was performed to evaluate the pullout strength and driving torque of newly designed pedicle screws. The design of three type screws were standard pedicle screw, which had single lead threaded and single pitched design (Type A), single pitched and dual lead threaded pedicle screw (Type B), dual pitched and dual lead threaded pedicle screw (Type C), respectively. The tests were performed in accordance with the ASTM standards using polyurethane (PU) foam blocks. There was no significant difference in pullout strength among three types of screw. Type B and Type C exhibited higher insertion torque and removal torque than Type A, respectively (p<0.05). Pedicle screws newly developed with dual pitched and dual lead threaded design showed higher driving torque without decrease in pullout strength compared to the standard pedicle screw and could be inserted more rapidly with the same number of revolutions.

• 한국기계가공학회지
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• 제19권8호
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• pp.43-49
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• 2020

The growth of the AR/VR market due to the advent of the 4th Industrial Revolution begins with the development of the display industry. The development of OLED and flexible displays is further accelerated by the development of R2R technology. Micro-processing technology using a fast tool servo (FTS), the core technology in R2R processes, is making technological progress in increasingly diverse ways. This paper proposes a method to develop an FTS for horizontal driving and presents this method through experiments and analyses. To develop a swing-type FTS based on a seesaw motion, a rotational moment hinge structure was designed for each type, and research was conducted to determine an effective design method. A cantilever-based swing-type FTS was developed in two variations: one with single-side hinges and another with dual-side hinges. The parameters in the design of the swing-type FTS are rotational moment, natural frequency, and material selection. In conclusion, an FTS with a single-side hinge demonstrates the high performance required for micro processing.

• 대한인간공학회지
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• 제36권4호
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• pp.281-292
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• 2017

Objective: This study aims to identify important physical design variables in designing a necklace type wearable device, and to present design guidelines to maximize comfort that a user feels upon wearing the device. Background: Interests in fitness culture and personal health are on the rise recently. In such a situation, demand for necklace type wearable devices is projected to increase a lot, as the devices enable users to use their hands freely and to enjoy various contents through connection with mobile devices. However, the necklace type wearable device's comfort was assessed to have the lowest comfort in a running situation, where human body moves up and down and left and right more than other devices wearable on other human body parts. Therefore, the usability of a necklace type wearable device was low. In this regard, studies on identification of the variables affecting user comfort upon wearing a necklace type wearable device and on physical design direction maximizing comfort and usability are needed. Method: A pretest and a main test were carried out to draw the direction of necklace type wearable device design. In the pretest, wearing evaluation on the diverse types of devices released in the market was conducted to draw physical design variables of the devices affecting comfort. Furthermore, variables significantly affecting the comfort of a device were selected through an analysis of variance (ANOVA). In the main test, anthropometry was performed, and information on anthropometric items corresponding to the design variables selected in the pretest was acquired. Based on the pretest results and the anthropometric information in the main test, the present study produced design guidelines maximizing the comfort of a necklace type wearable device with regard to major design variables upon dynamic tasks. Results: According to the pretest results, the variables having effects on comfort were the angle of side points, width, and height. Due to interactions between variables, those need to be simultaneously considered upon designing a device. Upon dynamic tasks, the angle of side points and width of a device was designed to be smaller than mean angle of the trapezius muscle and neck width, and thus attachment to human body was high. As height was designed to be larger than mean neck front and rear point width, comfort was higher due to feeling of stability. Conclusion: Because user sensitivity to comfort was high at human body's inflection points, a device needs to be designed for users not to feel high pressure on specific body parts with the device fitting human body shape well. A design considering user's situation is also required in further studies.

• 설비공학논문집
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• 제14권3호
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• pp.191-198
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• 2002

Cooling tower design procedure was set up using conventional Merkel theory, The design data could be different depending on the characteristic curve that the engineer chose. It reveals that the consistent and reasonable criteria are required based on the exact information of the cooling tower Performance. In this study, an off-design performance analysis program for a counterflow-type cooling tower was developed and verified by comparing with experimental data. Also, the off-design performance with various operating conditions was analyzed.

• 항공우주기술
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• 제1권1호
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• pp.163-172
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• 2002

액체로켓용 터보펌프시스템의 주요한 구성품의 하나로서 고압 터보펌프의 구동에 사용되는 터빈시스템 설계에 대한 연구가 수행되었다. 터빈시스템은 가스발생기에서 발생된 고온/ 고압의 연소가스의 운동에너지를 펌프를 구동시킬 수 있는 기계적 에너지로 전환하는데, 노즐을 통해 연소가스의 운동 에너지를 증가시켜 펌프와 동일 축으로 연결된 동익을 회전시킨다. 액체로켓엔진의 시스템설계의 결과로 주어지는 압력비, 일량, 입구온도, 입구압력 등의 요구조건하에, 이를 만족시키는 터빈 시스템(노즐 및 동익)의 설계연구가 수행되었다. 터빈시스템은 입/ 출구 압력비에 따라서 개방형(Open Type)과 밀폐형(Closed Type)으로 나눌 수 있는데, 개방형의 경우 높은 압력비와 소량의 유량을 필요로 하며 충격형(Impulse Type)의 동익이 사용되며, 낮은 압력비와 다량의 유량을 필요로 하는 밀폐형의 경우 반동형(Reaction Type)의 동익이 사용된다. 시스템의 단순화 및 효율화를 위해서 본 연구에서는 개방형 터빈시스템이 채택되었으며, 특히 개방형 터빈의 특징인 소량의 유량이 터빈을 구동하므로 효율을 증가시키기 위해서 부분분사노즐(Partial Admission Nozzle)이 채택되었으며, 이의 효율에 미치는 영향이 연구되었다. 공기역학적 이론과 실험에 근거한 이론이 사용되었으며, 차후에 항공우주연구원에서 터빈 상사시험을 통하여 본 연구에 적용된 설계를 검증하고자 한다.

• 한국실내디자인학회논문집
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• 제17호
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• pp.60-64
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• 1998

The results of simulation on greenery ratio using CG are as follows: arrangement type of optimal condition and greenery ratio were summarized as below as dispersion type and 5% ratio greenery for 20 pairs of assessment items and these assessment items were classified into 5 factors as a result of factor analysis,. These factors were Harmony Animation Atmosphere texture Peculiarity. Verification results of factors differences according to each condition can be. there was no apparent difference among factors in accordance with gender, In case of arrangement type dispersion type was higher than concentration type in all factors. Based on the above results dispersion type was assessed higher than concentration type the most suitable condition of Harmony Factor was 5% dispersion type Animation Factor was 5% dispersion type Animation Factor was 7% dispersion type Atmosphere Factor was 10% dispersion type Texture Factor was 5% concentration type and $\ulcorner$Peculiarity Factor$\lrcorner$was 7% concentration type.

• International Journal of Contents
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• 제6권4호
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• pp.14-21
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• 2010

In this study, the preferences with regard to floral design in a public space and the correlation between such preferences and the image features of the floral design types were identified. Based on the review of the related literature, the floral designs placed in a public space were classified into three types(the flower bed, container, and three-dimensional sculpture types) according to physical factors, and were classified into two types(the indoor and outdoor types) according to environmental factors. In the floral-design type classified by physical and environmental factors, the flower bed and outdoor types, respectively, were highly preferred. The factor that was found to have the greatest influence on the preference for the flower bed type was 'well-orderedness', which included the adjective categories 'harmonious', 'clean', and 'simple'; that which was found to have the greatest influence on the preference for the outdoor-type floral design was 'identity', which included the adjective categories 'symbolic', 'distinctive', 'harmonious', 'impressive', and 'clean'. It can thus be concluded that the plants that are effectively displayed in a public space can express the nature and identity of the city itself, can be a yardstick for giving value to the city and for evaluating it, and can be important components of the urban landscape. A design that is suitable for the purpose of each public space and that reflects the factors that exert an influence on the users' floral-design type preference should thus be developed.

• 복식문화연구
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• 제13권2호
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• pp.318-328
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• 2005

Our interest in human body is more and more increasing. Not only academic and art communities but also other social communities show a keen interest in the human body. Especially, the breast of women's body parts may be comparable to men's penis because it is protruded. The breast which sexually distinguishes women from men becomes an important topic in the fashion design community. Therefore, such designs which emphasize the breast are being introduced in a natural way. This paper aims at examining the reason and symbolism for the exposure of breast and analyzing the fashion design that breast is exposed. This study will help us grasp the meaning which the design has. The exposure's scope of breast in the design includes the partial exposure, total exposure and the concealment of breast. But these all have their effects in each scope. For this paper, some general things were investigated. They are as follows: the phases of breast exposure in the fashion design, the exposure of breast expressed in the works of fine art, and the alteration of breast-exposing phenomenon shown in apparels. Then, each type of breast-exposing design shown in the women's fashion was analyzed from the middle of 1980s' when the phenomenon of breast exposure occurred to the year 2004. These could be divided into 4 types. They include a suggestive type, an exaggerative type, an open type and a reproductive type. As the result of analysis of 4 types, such meanings of design as an emphasis of femininity, an expression of liberty, a symbol of maternity and a commercialization of sex could be analogized.