• The Journal of the Korea Contents Association
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• v.14 no.2
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• pp.535-543
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• 2014

In this paper, I proposed a way of improving computer education in elementary, middle and high schools. I firstly analyzed the importance of computer education by researching an index of a national economic condition, People's IT use frequency and the demand for computer education by students and parents. Secondly, I researched the condition of computer education in elementary, middle and high schools. Finally, I analyzed problems of current computer education and proposed three way of improving computer education in elementary, middle and high schools.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2007.04a
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• pp.141-145
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• 2007

The part in the structure that is most affected by changes of external temperature is the protective concrete layer that protects a waterproofing layer. Also, the waterproofing layer that is situated under or on the back of such a protective concrete layer is affected by temperature and the behavior of the protective concrete layer under the condition of consolidation or close adhesion. In particular, in many cases, the damage is serious mainly around the projection (such as a parapet), crack, and joint (expansion joint). However, there is no proper way of examining again the non-exposed waterproofing layer once it has been constructed. Therefore, there is an assessment only on the physical property of materials and the capability of the layer in construction, and there is no actual assessment in consideration of its environmental condition or the condition of the use of buildings after construction. Therefore, in order to create more pleasant buildings and to enhance the durability of structures, this study conducts research into the change of capability of non-exposed waterproofing material after the application of a static load and moving load on the waterproofing layer situated under or on the back of protective concrete.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.17 no.8
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• pp.722-728
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• 2005

The present paper deals with heating energy estimation in Korean-style apartments, paying special attention to the effect of room condition settings. Two types of heating modes are considered: continuous single-zone and scheduled multi-zone. In the latter, zones during unoccupied periods remain unconditioned. Also analyzed are sensitivities in heating energy with respect to the air change rate and the set temperature. The energy use is estimated with TRNSYS 15, a dynamic load calculation program. Heating energy for the actual residential condition (1.0 ACH and $24^{\circ}C$) appears to be nearly the same as that for a typical design standard (1.5 ACH and $20^{\circ}C$). The air change rate affects heating energy as sensitive]y as the set temperature. For all the simulated cases, the scheduled multi-zone heating mode is more energy-efficient than the continuous single-zone. Heating energy depends appreciably on the shading factor. It is expected that considerable heating energy for apartment houses can be saved by employing a multi-zone mode along with appropriate control devices.

• Journal of the Korean Institute of Educational Facilities
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• v.8 no.4
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• pp.5-15
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• 2001

The purpose of this study is to clarify the using condition and requirement for outdoor space between the parallel types of elementary school buildings focused on Chungbuk province in Korea. Consequently, we investigated the actual conditions of students and teachers, using conditions of outdoor space between school buildings. The summary of outdoor space can be given below. 1) In the using condition of outdoor spaces, most of them have path & covered walks, garden, playground and soon. The distances between neighboring building fixed, the use and quality of outdoor space is differently to spatial configuration of school buildings. For example, garden functions as itself in case of D/H>3, but the other space to observe in D/H>3. 2) In the requirements of outdoor spaces, the amount of scatter number of classmates and teachers is wide. The favoring outdoor space is the woods to take a rest by oneself, the demanding outdoor space is almost a resting place like a school store in case of classmates and the natural facilities like ponds garden pagora in teachers.

• Design & Manufacturing
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• v.11 no.2
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• pp.46-50
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• 2017

EPS used in lost foam casting elastic modulus is extremely low. So it is necessary to derive machining conditions for effective cutting. Therefore this study were analyzed end-milling machining conditions to affecting the surface roughness of EPS foam. The machining conditions were set to depth, feed, and RPM at 3-level. And 18experimental conditions were derived using mixed orthogonal array. The most important condition for surface roughness is RPM. In addition, RPM machining condition range test that can realize surface roughness less than $10{\mu}m$ was performed. he range of RPM conditions is more than 15,000. However the range of RPM conditions is a condition that is difficult to use in actual field. In the future variance analysis and experiments are needed to derive the range of machining conditions available.

• Proceedings of the SAREK Conference
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• 2006.06a
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• pp.506-511
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• 2006

To today with the acceleration due to the preference actual condition of high-class energy national income level it is together improving. It follows hereupon and it is convenient and the neat heat source is increasing a tendency where it is. It investigates the government offices building in commerce portion from the research which it sees and from the draft it analyzes a coat dosage. And comparison it analyzes the movable present condition of thread use dosage and the freezer. It presents the improvement direction against enemy conditions heat source equipment selecting. Also, currently it produces the dosage of heat source equipment and application it tries. The result, the various safety rate and the premium rate which it uses universally are considered above thread using. The reappraisal for enemy conditions heat source equipment selecting which it follows hereupon is necessary.

• Journal of the Korean Institute of Landscape Architecture
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• v.20 no.2
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• pp.90-105
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• 1992

the purpose of this study is to suggest objective basic daa for park management proposal through the quantitative analysis of users' behaviours and satisfaction for the actual conditions of management in Chonju neiborhood parks. For this, users' behaviors and socio-ecnomic characteristics have been anlyzed. Specificaly, it atempts to investigate users' anticipation and degree of satisfaction applied Expectancy Theory by Likert scale. And users' satisfaction for the actual conditions of management had been analyzed by using the multiple regression. Results of this study can be summarized as follow; From the aspect of utilization reality, the male usage was slightly higher than female usage, and the usage rate among the young and students such as high school students or university students also appeared slightly higher than the norm. Due to the fact, subject park had been neighborhood parks, walking usage was predominant, and the length of stay to be less than an hour. Generally, the values of users' post occupancy evaluation were lower than those of anticipated, in well known parks. In landscape satisfaction level, the parks with harmonious visual element had high landscape evaluation, and each category showed diversity depending on the park. Seasonableness, formation of physical elements, visual uniqueness, cozy atmosphere appeared as main explicatory variables having positive effects on the satisfaction level for the landscape. According to the multiple regression analysis, the major variables to the satisfaction for the actual condition of vegetation managements were harmony with facilities, recovery of artificial injury. In the park facilities and operation, the major variables related to the satisfaction were conditions of management of rest equip, facilities and guidance of use, observe the rules, respectively.

• Journal of Oriental Neuropsychiatry
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• v.32 no.4
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• pp.321-328
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• 2021

Objectives: To compare bone proportional cun and finger-breadth cun in the head area to clearly distinguish the anterior hairline. Methods: In this study, the head area was measured for 50 adult males and females in their 20s with normal hair condition. We compared bone proportional cun and finger-breadth cun in the head area and calculated the error by analyzing the difference between the actual location of the anterior hairline and the location measured with the two methods. Results: There was a significant difference between bone proportional cun and finger-breadth cun in the head area. The two methods showed significant difference from the actual location of the anterior hairline. In addition, as a result of calculating the error between the actual location of the anterior hairline and the location measured by the two methods, the finger-breadth cun had fewer errors than the bone proportional cun. Conclusions: The finger-breadth cun is better than the bone proportional cun as an alternative when it is difficult to find the anterior hairline.

• Journal of the Korean housing association
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• v.13 no.2
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• pp.73-78
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• 2002

Recently, the energy consumption has been sharply increased and the environmental pollution has been serious, resulted in increased use of fossil fuel. These facts are applied to most fields, and are especially important issues in the field of architecture. The energy consumption rate of building is about 30% of all energy consumption, and the rate of residential is about 20% of the rate of building and is increasing gradually. The purpose of this article is firstly to analyse an actual energy consumption rate of model building and compare it with alternative methods, which are applied passive system to, and secondly to suggest an optimal passive method for saving energy. The conclusion of this study is as follows; 1) As compared with the existing house on actual energy consumption rate, 6% in changing orientation to a south, 9% in using double low-e glazing and 23% in shading is decreased. 2) The change of insulation from 50 to 100mm did not show dramatical difference in energy consumption rate. 3) As changed indoor temperature at 2$0^{\circ}C$ in winter and 27$^{\circ}C$ in summer, the rate shows a reduction of 14% compared with the existing condition.

• Fashion & Textile Research Journal
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• v.17 no.4
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• pp.597-603
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• 2015

This study investigates the actual domestic and overseas cyclewear wearing conditions for male high school cyclists. The study results provide factors and degree of dissatisfaction as basic data for cyclewear development. This study was conducted on 35 male high school cyclists (freshman to seniors) by a questionnaire and interview method. Study results were: Male high school cyclists considered functionality as most important when they bought cyclewear and the brand they most often bought was a cheap domestic brand. Dissatisfaction with the crotch, thigh circumference and minimum leg circumference was higher than other parts during wearing. A cyclist is more sensitive to wear because they require more lower body motion than other parts. Cyclewear should be: less transformed even by frequent laundering, made of breathable material and use a sewing technique that minimizes air resistance and increases fit the body. Functional pads ergonomically designed with high tactile materials should be developed to prevent 'saddle sore' and groin soreness region that happens because of a lower body bending posture when cycling. A follow-up study is recommended to further develop excellence in cyclewear functionality and dimension suitability for male high school cyclists through the size system.