• Nuclear Engineering and Technology
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• v.49 no.1
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• pp.234-244
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• 2017

Natural frequencies of immersed square sections decrease due to a contribution of added mass to the movement of square sections. In this study, natural frequencies of square sections are obtained as a function of gap size between the square section and a rigid square wall using the finite element method. Additionally, they are used to extract the added mass effect on translational and rotation motions. Published information and studies on the translational and torsional vibration of square beams are also examined for practical use. D coupling of a square section is also investigated for multiple square sections. The suggested added mass estimation can be applicable to the spent fuel storage design of a pressurized light water modulated nuclear power plant.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.11a
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• pp.150-151
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• 2013

Recently, the internal space organization of the building changes to the frame construction and flat slab construction in the wall type structure. And the use of light weight panel changing the internal joint use easily is increased. Therefore, in this research, the length change characteristic that the magnesium chloride addition rate reaches to the magnesium curing body tries to be studied. It could confirm according to the length change specific result that the magnesium chloride amount of addition reaches to the magnesium oxide curing body to expand. And the thing described below was the large-scale expansion the magnesium oxide addition rate 60%. And it showed up as 50, 40, 30, 20, and order of 10s (%). It could look at to form the hydrate of the SEM picture result needle-shaped of the Hardened.

• Korean Institute of Interior Design Journal
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• no.29
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• pp.137-144
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• 2001

The purpose of this study was to suggest the design guidelines for healthcare facilities for the elderly. D healthcare facility for the elderly in Busan was case studied. Subjects were 34 elderly patients, 35 families, and 36 nurses who were in this facility. The elderly Patients and their families were interviewed and the nurses were answered through self-administered questionnaires. Generally, the users of this facility were positively responded to the building and interior design of this facility. Also, the elderly patients and the families were mere satisfied with the design of this healthcare facility than the nurses. All users responded the functional aspects and the whole interior design of this healthcare facility positively and the environmental psychological aspects negatively Also, the nurses responded this facility's ambient environments negatively and the patients and the families positively. The elderly patients and their families wanted to share the inpatient room with 3-6 persons because of their economical conditions and social contacts. Almost half of them preferred to sit down on the floor Also, they tended to prefer to light interior color, wall papers, and the familiar and home-like environments.

• Journal of the Korean Institute of Educational Facilities
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• v.6 no.4
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• pp.16-23
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• 1999

The thermal and condensation performance of steel stud walls are monitored in steel-framed schools of Ee-Wol Elementary School and kindergarten using temperature and humidity sensors installed. The monitoring process carried out during the summer and winter period, shows decrement effect of the external heat flow to be quite remarkable and excellent. And steel stud walls provides a highly efficient time-lag effect in spite of its light weight property, with 30 minutes to 4 hours time-lag for external heat flow, which variation mainly depends on its location of each part of the wall. Any condensation phenomena are not observed in either external or internal surfaces.

• Proceedings of the KIEE Conference
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• 2003.11c
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• pp.848-851
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• 2003

Display devices are becoming increasingly important as an interface between humans and machines in the growing information society In display device, PDP(Plasma Display Panel) has many advantages in that wide screen, light weight, thin, wide viewing angle and unaffected by magnetic field. In this paper, modified ramp waveform is suggested by Vt Close Curve, and PDP driving circuit is designed by modified ramp waveform, this modified ramp waveform have more addressing wall voltage better then the old ramp waveform.

• ALGAE
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• v.24 no.2
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• pp.57-60
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• 2009

We described a freshwater filamentous zygnematacean species, Zygnema cruciatum (Vaucher) Agardh in Korea,based on light microscopy and scanning electron microscopy. Zygnema cruciatum is characterized by unbranched fil-amcnts of short cylindrical cells, two stellate chloroplasts per cell, a pyrenoid in each chloroplast. Cells are 32-39 $\mu$m in width and 35-50 $\mu$m in length, Conjugation is scalariform and female gametangia are cylindrical or slightlyenlarged. Zygospores are yellow-brown, spherical or broadly ovoid, 35-44 $\mu$m wide and 40-47 $\mu$m long. Under SEM, wall of zygospore has pitted mesospore and pits are 1.4-1.8 $\mu$m in diameter and 3-4 $\mu$m apart from each other.

• Journal of Fashion Business
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• v.25 no.6
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• pp.1-12
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• 2021

The purpose of this study examines the fashion-related concerns of women in their early twenties and their personal thoughts on sociocultural factors through fashion. Data were collected twenty-seven female participants in their twenties in order to examine their traumas related to fashion and how these experiences affect their attitude toward clothing and fashion. Based on this, this study sheds light on what effects traumatic experiences have had on participants' self-esteem. It also provides an in-depth analysis of the problems underlying and reasons for the study participants' fashion choices, and attempts to demonstrate their self-reflection through fashion. Finding of the study was that the participants had a passive attitude toward fashion and built a wall against it. The study results suggest that the very first step to going beyond oneself and developing an active attitude is to try to be proactive and face a challenge related to fashion or clothes that one chooses oneself. Therefore, it is now time for Korean society to shape a culture that respects the unique qualities of every individual and allows free expression of diversity.

• Journal of applied mathematics & informatics
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• v.41 no.5
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• pp.1085-1102
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• 2023

In this study the magneto hydrodynamic (MHD) micro polar fluid flow of a viscous incompressible fluid past a porous medium in the presence of chemical reaction is considered. This work is devoted to investigate the Soret effect and Electromagnetic radiation effect and analyze analytically. In the energy equation the applied magnetic field strength and in the concentration equation the Soret effect are incorporated. The basic PDE (partial differential equations) are reduced to ODE (ordinary differential equations) using non dimensional variables. Then the analytical solution of the dimensionless equations are found using perturbation technique. The features of the fluid flow parameters are analyzed, discussed and explained graphically. The graphical solutions are found using MATLAB R2019b. Skin friction coefficient at the wall, Couple stress coefficient at the plate and the local surface heat flux are also thoroughly examined. Overall, this study sheds light on the complex interplay between physical parameters in the behavior of MHD micro-polar fluid past a porous medium in the presence of chemical reaction.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.19-21
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• 2008

본 논문에서는 테이블 형이 아닌 스탠드형 테이블 탑 디스플레이에 대한 연구를 다루고 있다. 스크린에 대한 터치를 인식으로 입력을 받아들이므로 TouchFace III 라고 명명하고 있으며, 기존에 개발되었던 두 대의 테이블 탑 디스플레이와는 형태에서 차별을 두고 있다. TouchFace III 시스템은 FTIR(Frustrated Total Internal Reflection : 내부 전반사 장애 현상) 방식이 아닌 TouchLight방식과 HoloWall방식을 조합하여 시스템을 구성하였다. 그래서 스크린에서의 직접적인 손터치 뿐만 아니라, 스크린에 반사되는 손형상에 대한 제스처까지도 인식할 수 있도록 연구중에 있다. 이는 협업을 강조하는 테이블 탑 디스플레이의 컨셉에 어울리며 한 디바이스를 이용하여 동시에 여러사용자가 디바이스를 조작하는 것을 가능하게 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.163-165
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• 2008

본 논문은 공간적인 제약을 벗어난 협업을 위하여 사용자가 서로의 모습을 확인할 수 있고, 직접적인 터치에 공간적인 터치(손 형상 및 제스처 인식)를 통하여 보다 자유롭고 직관적인 시스템 제어를 추구 하는 테이블 탑 디스플레이를 제안한다. 테이블 탑 디스플레이는 FTIR(Frustrated Total Internal Reflection : 내부 전반사 장애 현상) 방식이 아닌 TouchLight방식과 HoloWall방식을 조합하여 손 형상 및 제스처 인식을 할 수 있도록 설계하였다.