• 한국보육학회지
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• 제17권2호
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• pp.45-73
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• 2017

본 연구는 뇌 기반 학습 원리를 적용한 유아디자인교육 활동이 유아의 창의성과 친사회적 행동에 미치는 효과를 알아보는 데 목적이 있다. 실험집단 연구대상은 K광역시에 위치한 I유치원 만 5세반 유아 17명, 비교 집단의 연구대상은 S유치원 만 5세반 유아 19명이다. 실험집단 유아들에게는 8주 동안 16회에 걸쳐 뇌 기반 원리를 적용한 유아디자인교육 활동을 적용하였고, 비교집단은 연령별 만 5세 누리과정에 기초한 미술 교육 활동을 실시하였다. 연구결과는 첫째, 뇌 기반 원리를 적용한 유아디자인교육 활동을 한 실험집단 유아들이 비교집단 유아들보다 창의성의 유창성, 독창성, 민감성 점수가 높았다. 둘째, 뇌 기반 원리를 적용한 유아디자인교육 활동을 한 실험집단 유아들은 비교집단 유아들보다 도움주기, 의사소통 능력, 나누기, 감정이입 및 조절 점수가 높았다. 이러한 결과는 뇌 기반 학습 원리를 적용한 유아디자인교육 활동이 유아의 창의성과 친사회적 행동 증진에 있어 긍정적 영향을 미치며, 이는 유아의 창의성과 친사회적 행동 향상을 돕기 위한 교수 학습방법으로 뇌 기반 원리를 적용한 유아디자인교육 활동이 의미 있는 대안이 될 수 있음을 시사해 준다.

• EDISON SW 활용 경진대회 논문집
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• 제4회(2015년)
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• pp.467-475
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• 2015

In this paper, the FREECAD 0.14 was used for modeling conventional Selfie-stick and the newly proposed Selfie-stick design. The purpose of this paper is to demonstrate the utility of FREECAD 0.14, which is open-source and still in development for further use. After modeling the conventional Selfie-stick, CatiyaV5 was used to assemble FREECAD 0.14 drawn elements. Main advance in newly designed Selfie-stick is the portability. To improve portability of the Selfie-stick, folding mechanism was adopted from folding LED stands. Several mechanisms were adopted to improve user convenience as well. Ansys 14.0 was used for structural analyses of conventional Selfie-stick model and the newly designed model as well. Several simplifications for the models were needed to process the analyses. When analyzing the newly designed model various materials were used one by one to find compatible composition. Using Aluminum alloys for the stick and the hand grip was found to be compatible. FREECAD was useful for suggestion of the newly designed model but not so much useful to design an actual product. Various efforts would make FREECAD the best choice for industrial use for free as it is named.

• 한국CDE학회지
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• 제21권2호
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• pp.61-64
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• 2015

In this paper, the FREECAD 0.14 was used for modeling conventional Selfie-stick and the newly proposed Selfie-stick design. The purpose of this paper is to demonstrate the utility of FREECAD 0.14, which is open-source and still in development for further use. After modeling the conventional Selfie-stick, CatiyaV5 was used to assemble FREECAD 0.14 drawn elements. Main issue in newly designed Selfie-stick is the portability. To improve portability of the Selfie-stick, folding mechanism was adopted from folding LED stands. Several mechanisms were adopted to improve user convenience as well. Ansys 14.0 was used for structural analyses of conventional Selfie-stick model and the newly designed model as well. Several simplifications for the models were needed to process the analyses. When analyzing the newly designed model various materials were used one by one to find compatible composition. Using Magnesium Alloy for the stick and the hand grip was found to be compatible. FREECAD was useful for suggestion of the newly designed model but not so much useful to design an actual product. Various efforts would make FreeCAD the best choice for industrial use for free as it is named.

• 대한인간공학회지
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• 제26권1호
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• pp.79-85
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• 2007

Demand forecasting methods for a consumer product such as TV or refrigerator are widely known. However, sales forecast for a brand new product cannot be estimated using conventional forecasting methods. This study proposes a five-step procedure in forecasting a newly developed product. Step one defines functions in a High Touch product in order to estimate relative attraction of the product to consumer group. In step two, for a comparison purpose, a compatible product that is successfully penetrated into market is selected. Step three breaks a target population into many segments based on demography. Step four calculates relative attraction between the High Touch product and the compatible product. Finally, market penetration rate of the High Touch product is estimated using a bell-shaped diffusion curve of the compatible product. The process offers a method to estimate potential demand and growth pattern of the new High Touch product.

• JSTS:Journal of Semiconductor Technology and Science
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• 제16권6호
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• pp.781-792
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• 2016

This paper presents a new approach to enhance the data retention of logic-compatible embedded DRAMs. The memory bit-cell in this work consists of two logic transistors implemented in generic triple-well CMOS process. The key idea is to use the parasitic junction capacitance built between the common cell-body and the data storage node. For each write access, a voltage transition on the cell-body couples up the data storage levels. This technique enhances the data retention and the read performance without using additional cell devices. The technique also provides much strong immunity from the write disturbance in the nature. Measurement results from a 64-kbit eDRAM test chip implemented in a 130 nm logic CMOS technology demonstrate the effectiveness of the proposed circuit technique. The refresh period for 99.9% bit yield measures $600{\mu}s$ at 1.1 V and $85^{\circ}C$, enhancing by % over the conventional design approach.

• 한국통신학회논문지
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• 제25권7A호
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• pp.960-966
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• 2000

무선 채널 상으로 동영상 신호를 전송하는 경우 채널 상의 잡음과 간섭 신호 등이 압축된 돋영상 신호를 크게 왜곡시키기 때문에 무선 전송 상의 오류에 강인한 영상 전송 기법 개발이 필수적이다. 본 논문에서는 오류 정정 부호로 우수한 성능을 보이느 turbo 코드를 압축된 동영상 신호의 안정적인 전송에 적용하기 위해서 동영상 신호전송에 맞는 RCPT(rate compatible punctured turbo)코드를 설계하고 이의 성능을 해석하였다. 특히 RCPT 코드는 동영상 신호의 UEP(unequal error protection) 적용에 유용하다. 모의 실험 결과 turbo 코드의 인터리버 (interleaver)의 크기가 크지 않을 때는 helical 인터리버를 사용한 turby 코드가 우수한 성능을 보이는 것을 확인하였다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.635-637
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• 2017

'프로그래밍은 어렵다'라는 인식이 학습자들 가운데 퍼져있다. 실제로 대학교육에서 프로그래밍 수업의 중도 포기율이 다른 강좌들에 비해 높은 것을 볼 수 있다. 따라서 학습자들이 프로그래밍을 왜 어렵게 생각하는지 인지적인 측면의 분석을 통해 그에 대한 적절한 교수 전략이 필요하다. 최근에 뇌과학의 발달을 통해 뇌가 어떻게 학습하고 어떤 상황에서 가장 효과적으로 활동하는지 파악하여 적절한 학습 환경을 구축하기 위한 뇌친화적 학습에 대한 연구들이 진행되고 있다. 본 연구에서는 뇌친화적인 학습 원리를 기반으로 하여 프로그래밍 수업에 대한 교수 설계를 하였다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(4)
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• pp.261-264
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• 2001

In this paper, we introduce a simple design method f9r mot-squared type raised cosine filter with equiripple characteristics. Through some design examples, we show that the proposed filter has much better performance in ripple than the conventional SRCF at the expense of small increasing of ISI. In addition, the proposed Inter is compatible with conventional SRCF. Finally, we designs the filter for W-CDMPI which uses RRC (Root Raised Cosine) with a=0.22, in 12bit finite precision.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2002년도 봄 학술발표회 논문집
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• pp.985-990
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• 2002

Contemporary architecture calls for a wide range of surface textures and treatments. A surface compatible with the architect's design may vary from a glass-smooth finish to one requiring special sculptured ornamentation. These surfaces require many different types of form sheathing and lining. The purpose of study development new design form and made elaborateness shape. Easy to used in field that architecture finish material not used expect effective reduce of working hours, personnel expenses, architecture finish material, cost. After this, building wall apply a variety shape in concrete surface.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1996년도 한국자동제어학술회의논문집(국내학술편); 포항공과대학교, 포항; 24-26 Oct. 1996
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• pp.996-999
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• 1996

This paper introduces prototype design of 765kV Substation control system based on fiber optics LAN and distributed network protocol. Two major important facts, immunity of any surge which frequently occurs in Ultra High Voltage Substation and the most suitable communication protocol for substation control system, are considered on the system design conception. To meet the first fact, use of fiber optics cable and isolation transformer are considered, and to satisfy the second fact, DNP3.0(Distributed Network Protocol) which is IEC870-5 compatible is adopted.