• 건강소식
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• v.14 no.11 s.144
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• pp.2-5
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• 1990

뚱뚱한 아이들이 늘고 있다. 어린이 비만의 문제는 아이들이 뚱뚱하다는 것에서 그치지 않는다. 흔히 얘기하는 성인병을 어릴 때부터 앓게 하는가 하면, 어른이 되어서도 여전히 성인병의 늪에서 헤매이게 하는 커다란 원인으로 작용한다. 이렇게 무서운 어린이 비만을 해결하기 위해 한국사회체육센터(강동구 둔촌동 482-1105)에서는 비만아 체력단력교실을 ‘84년부터 열어오고 있다. 이 교실은 단기간에 살을 뺀다는 의미보다는, 비만아들에게 움직이는 것을 즐겁게 생각하도록 하고 자신감과 사회성을 갖도록 해주는데 더 큰 목적이 있다. 치료 위주가 아닌 예방의학적 차원의 건강관리와 밀접하게 접목되는 사회체육의 의미를 보여준 비만아 체력단련 교실의 프로그램과 의의를 소개한다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2010.05a
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• pp.221-224
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• 2010

The introduction of BIM-based project has increased in the domestic recently. Therefore the demand of BIM professionals is surging combined with the necessity of BIM education. However BIM education done in the domestic industry and public organization is only focusing on the 3D modeling, As a result an educatee could not put the real intention of BIM into practice. Thus through this study the wrong recognition of BIM will be corrected and this study analyzes the problems of domestic BIM-based project. This study examines the improvement of domestic BIM education cases by drawing the capability of BIM professionals.

• Korean Journal of Optics and Photonics
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• v.10 no.2
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• pp.169-173
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• 1999

We have experimentally investigated the eye margin characteristics of intensity modulated 10Gb/s NRZ signals in optically amplified systems depending on optical signal-to-noise ratio and chromatic dispersion. For the practical system application, the minimum optical signal-to-noise ratio was 25 dB. We utilized the negative chirped transmitter and a dispersion compensation fiber to compensate the chromatic dispersion in single mode fiber. We found the optimum eye opening and receiver sensitivity in case of the residual dispersion of 0~+935 ps/nm.

• The Journal of the Petrological Society of Korea
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• v.8 no.3
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• pp.149-170
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• 1999

The volcanic lavas in the Janggi area are plotted on basalt, basaltic andesite and andesite field (SiO$_2$; 48-61 wt.%) in the TAS diagram and belong to subalkaline series. Nineteen chenmical analyses of lavas show two distinct differentiation trends; tholeiitic and calc-alkaline. Calc-alkaline basaltic andesites composed of plagioclase and two-pyroxenes (cpx, opx) in their phenocrysts. Tholeiitics basaltic lavas can be classified into two sub-types. The one is porphyritic basalts composed of plagioclase, clinopyroxene and olivine phenocryst, and the other is aphyric basalt and more evolved lavas (aphyric basaltic andesite) with the same mineral phases. Incompatible elements and REE patterns show the enrichment of LILE and depletion of HFSE. This characteristics indicate that these lavas are evolved from the magmas related to subduction. Howeverm calc-alkaline basaltic andesite lavas show that slightly higher enrichment of LILE and the depletion of HFSE than those of tholeiitic basaltic lavas. On the tectonic discriminant diagram such as Ba/Th and La/Th ratios, calc-alkaline basaltic andesite lavas belong to orogenic medium to high-K suites, whereas tholeiitic basaltic lavas belong to medium-K suites and MORB. On the other diagram, such as La/Yb vs. Th/Yb, the volcanic lavas in the study area plotted in the field of oceanic arc basalt. Tholeiitic basaltic lavas are located in more prinitive environment than calc-alkaline andesitic lavas.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.1076-1082
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• 2009

This study investigated caregivers' communication styles and children's emotional development. Emotion-laden puzzle tasks were used to elicit caregivers' communication styles while interacting with their children. Participants included children with Down syndrome (N=10) and typical children (N=15) and their caregivers. As expected, caregivers of children with Down syndrome (DS) used more behavior and attention directives with their children, and caregivers of typical children used more conversation-eliciting prompts with their children. Parents of children with Down syndrome also used a unique communication style in which they asked a question and immediately answered it themselves. Additionally, caregivers of typical children focused more on emotion concepts in their communications with their children and caregivers of DS used more cognitive concepts such as labeling colors and shapes. The results revealed that caregivers of children with Down syndrome usually tried to educate children by emphasizing cognitive concepts to compensate for their delayed development. Because the children are delayed in their emotional development, parents may need help in intervening on the area of emotional development.

• Journal of Convergence for Information Technology
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• v.11 no.8
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• pp.23-28
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• 2021

In this paper, we analyze the tracking errors of monopulse radar according to the JSR of retrodirective cross-eye and radar skin return signals. The cross-eye jammer gain(G_c) is used to calculate the radar tracking errors, and the relationship between the jammer gain and the JSR is represented mathematically. We analyze the radar tracking errors by varying the tracking angle and JSR. Analysis results of the phase difference(ϕ) and amplitude ratio(a) between the two jammer signals and the changing JSR show that the closer the phase difference of the two jammer signals is to 180, the greater the tracking error and it shows that if the JSR is above 20dB, the tracking errors no longer increase. This work presents an effective utilization of retrodirective cross-eye jammers through various tracking error analyses based on the JSR, tracking angles, two-jammer phase differences and amplitude ratios of two-jammer signals.

• 제어로봇시스템학회:학술대회논문집
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• 1986.10a
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• pp.443-447
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• 1986

오늘날 제조업에 있어서는 시장의 다양화, 원가절감 및 리드타임의 단축이라는 대내외적 요구에 부응할 수 있는 기술 생산체재의 확립이 요구되고 있다. 이에 따라 설계 및 기술변경(Engineering Change)에따른 원가상승을 막기 위해 CAE(Computer aided engineering), CAD(Computer aided design)의 도입을 서두르게 되었고 CAD데이타의 효율적 이용에 의한 가공 및 생산적 측면에서 CAM(Computer aided manufacturing)의 도입도 검토하게 되었다. 본 논문은 이러한 개념의 발상동기와 이를 뒷받침하기 위한 한국 아이 비 엠이서 제공하는 하드웨어 및 소프트웨어를 소개하고 공장자동화를 위한 기술 생산 통합시스템의 구축이라는 측면에서 아이 비 엠이 추구하는 방향을 검토하고 있다.

• Journal of Korea Technology Innovation Society
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• v.9 no.3
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• pp.412-434
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• 2006

Investigation into the sources of firms' ideas for new product development is very important because the capabilities of developing new products determine the competitiveness of a firm. This study aims at drawing the managerial implications for new product development in terms of the autonomy and the size of firms. To do this, this study analyzes how the capabilities of developing new products and the sources of ideas are different by the types of firms. More concretely, it compares differences in the capabilities of developing new products between types of firms, and in the sources of ideas for new product development between internal sources and external sources.

• Journal of Convergence for Information Technology
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• v.10 no.6
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• pp.14-18
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• 2020

In this paper, when two sets of cross-eye jammer antennas are installed vertically to jam a monopulse radar, the jamming effects according to the jammer's phase difference, amplitude ratio, and radar angle of engagement are analyzed. The phase difference and amplitude ratio of the cross-eye jammer can be adjusted in the jammer, but since the angle of engagement is relatively determined by the radar, it is very important to respond to changes in the angle of engagement. The orthogonally deployed jammer antennas can be considered as a good way to increase the jamming effect while minimizing the hardware configuration, and the jamming effect is analyzed while changing the angle of inclination from 0° to 360°. This jammer greatly improves the jamming effects at the angles of incidence 45°~135° and 225°~315°, compared to a single jammer. And it is expected to be useful in the design of cross-eye jammers for military aircraft and ships.

• KSCI Review
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• v.9 no.2
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• pp.73-84
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• 2002