• 한국컴퓨터정보학회논문지
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• 제18권10호
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• pp.217-223
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• 2013

본 연구는 사회복지 현장실습이 진로선택에 미치는 영향에 관한 연구를 통계분석 기법을 중심으로 연구하고자 한다. 복지 현장실습이 전문가를 양성시키는 중요한 곳이기 때문에 지식, 가치, 실천적 기술을 파악하고자 한다. 이러한 측면에서 복지현장실습이 진로와 직결되기 때문에 사회복지학과의 교과수업 만족도, 기관 등 연계를 원하는 정도, 사회복지학과의 실습에 관한 요인인 실습의 만족도에 대해 분석하고자 한다. 첫째, 사회복지학과 실습생들의 개인적 특성을 파악한다. 둘째, 사회복지학과 요인과 진로선택의 관계를 규명한다. 셋째, 사회복지학과 대학(원)생들이 사회복지현장실습이 진로선택에 영향을 주는지 살펴본다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1990년도 하계학술대회 논문집
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• pp.500-503
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• 1990

Neural network is a computational model of the biological nervous system developed to exploit its intelligence and parallelism. Applying neural networks to robots creates many advantages over conventional control methods such as learning, real-time control, and continuous performance improvement through training and adaptation. In this paper, dynamic control of a six-link robot will be presented using neural networks. The neural network model used in this paper is the backpropagation network. Simulated control of the PUMA 560 arm shows that it can move at high speed as well as adapt to unforseen load changes. The results are compared with the conventional PD control scheme.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.123-124
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• 2006

This paper investigates an efficient pre-equalization technique that can be applied on the up-link of a time division duplex (TDD) orthogonal frequency division multiplexing (OFDM) systems. This technique provides the spectral efficiency by omitting the usage of training sequences on the up-link. In this paper, the performance of a variety of pre-equalization techniques is analyzed and simulations are performed by applying power efficient pre-equalization algorithms with phase and amplitude & phase pre-equalization in the Rayleigh fading channel.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2003년도 ISIS 2003
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• pp.300-303
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• 2003

An Algorithm based on direct implementation of variable structure systems theory approach is proposed for on-line training of multilayer perceptrons. Network structures which have multiple inputs, single output and one hidden layer are considered and the weights are assumed to have capabilities for continuous time adaptation. The zero level set of the network learning error is regarded as a sliding surface in the learning parameters space. A sliding mode trajectory can be brought on and reached in finite time on such a sliding manifold. Results from simulated on-line identification task for a two-link planar manipulator dynamics are also presented.

• ETRI Journal
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• 제42권3호
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• pp.341-350
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• 2020

In a wireless sensor network (WSN), the data transmission technique based on the cooperative multiple-input multiple-output (CMIMO) scheme reduces the energy consumption of sensor nodes quite effectively by utilizing the space-time block coding scheme. However, in networks with high node density, the scheme is ineffective due to the high degree of correlated data. Therefore, to enhance the energy efficiency in high node density WSNs, we implemented the distributed source coding (DSC) with the virtual multiple-input multiple-output (MIMO) data transmission technique in the WSNs. The DSC-MIMO first compresses redundant source data using the DSC and then sends it to a virtual MIMO link. The results reveal that, in the DSC-MIMO scheme, energy consumption is lower than that in the CMIMO technique; it is also lower in the DSC single-input single-output (SISO) scheme, compared to that in the SISO technique at various code rates, compression rates, and training overhead factors. The results also indicate that the energy consumption per bit is directly proportional to the velocity and training overhead factor in all the energy saving schemes.

• Clinical and Experimental Reproductive Medicine
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• 제44권1호
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• pp.28-32
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• 2017

Objective: Growing evidence suggests that increased cardiovascular disease (CVD) risk is associated with female infertility caused by conditions such as polycystic ovarian disease, obesity, thyroid dysfunction, and endometriosis. The aim of this study was to evaluate whether any relationship exists between CVD and unexplained infertility. Methods: Sixty-five women with unexplained infertility and 65 fertile controls were enrolled in the study. CVD risk markers such as low-density lipoprotein (LDL), high-density lipoprotein (HDL), total cholesterol (TC), triglycerides (TG), insulin resistance (defined by the homeostasis model assessment ratio), and high-sensitivity C-reactive protein (hs-CRP) were assessed. Results: TG, TC, LDL, and hs-CRP levels were higher and HDL levels were lower in patients with unexplained infertility than in fertile controls (p<0.05 for all). Positive associations were found between unexplained infertility and TG, TC, LDL, and hs-CRP levels, and a negative correlation was found for HDL (p<0.05 for all). Multivariate logistic regression analysis showed that TG, HDL, and hs-CRP were independent variables associated with unexplained infertility. Conclusion: Our study showed that women with unexplained infertility had an atherogenic lipid profile and elevated hs-CRP levels, suggesting a higher risk of developing CVD in the future. Further studies with larger groups are needed to investigate the nature of this link.

• 한국산학기술학회논문지
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• 제6권1호
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• pp.17-23
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• 2005

지식, 기술, 정보가 경쟁력의 원천이 되는 산업 발전의 변화추세에 따라 세계 각국은 일-교육$\cdot$훈련-자격의 긴밀한 연계체제인 국가직업능력표준을 통해 국가 인적자원 개발 시스템을 개선해 나아가고 있다 우리나라에서도 노$\cdot$사$\cdot$정 합의에 의해 2002년부터 전 산업분야에 적용될 국가직업능력표준이 개발되고 있다. 본 연구에서는 이렇게 개발된 국가직업능력표준을 이용하여 우리나라 기능대학/전문대학의 컴퓨터 응용기계설계과에서 활용할 수 있는 교육과정과 교재개발방안을 개발하여 제시한다.

• 가족자원경영과 정책
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• 제25권1호
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• pp.63-75
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• 2021

이 연구의 목적은 가족친화 컨설팅 컨설턴트, 인증심사원, 직장교육 전문강사 등 가족친화 전문인력의 활동 경험을 통해 전문인력의 필요 역량을 살펴보고, 전문인력 양성 교육과정 개선 방안을 마련하는 것이다. 이를 위해 10명의 전문인력을 대상으로 포커스그룹 인터뷰를 실시하였다. 본 연구 결과에 따르면, 세 영역에서 활동하는 가족친화 전문인력 모두 가족친화제도 및 가족친화사업 이해라는 공통 역량을 필요로 하지만, 활동 영역에 따른 필요 역량이 상이하므로 공통 교육과 함께 전문인력별로 차별화된 교육과정을 마련하는 것이 필요하다. 교육과정 개편 방향과 관련하여 전문인력별 교육과정 간 연계성 강화, 가족친화 전문인력 교육 시수 확대, 신규 양성교육과 보수교육 간의 차별화가 제안되었다. 이와 함께 교육 운영과 방법의 다양화, 시의성 있는 주제의 심화보수 교육의 필요성 등이 제안되었다. 이러한 결과는 가족친화 전문인력에게 요구되는 역량과 활동 중인 전문인력의 교육 요구에 따라 가족친화 전문인력 교육과정이 재구성될 필요가 있음을 시사한다.

• 한국환경교육학회지:환경교육
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• 제21권3호
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• pp.66-78
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• 2008

Since Environmental Education in Elementary School is taught separately in various subject area, a well-founded and organized curriculum in integrated Environmental Education is needed to educate teachers for professional development. In this research, a curriculum for elementary teacher in-service training program was developed in order to improve both environmental and educational competencies of elementary school teachers. The curriculum was based on the needs analysis on Environmental Education training for elementary school teachers. Also it was based on international and updated perspectives on Environmental Education, Education for Sustainable Development. The curriculum consists of the introduction and the particular perspectives. The particular is made of 60 hours, which covers 6 perspectives on environment. They are ecological perspective, environmental ethics perspective, social-cultural perspective, economic perspective, environmental hygienic perspective, and environmental policy. Environmental policies of Korea and the world were included so that teachers will understand efforts made at national level and participate more to environmental action in their schools. Lesson objectives were specified for teachers to apply this curriculum to their classroom easily. Related elementary curriculum and textbook were indicated at the end of each lesson so teachers can link their training setting with their classroom setting. Especially, in this curriculum various teaching and teaming methods for each lesson are introduced. Thus, this re- search is very practical for elementary school teachers who are planning to teach environment in their classroom.

• 대한전자공학회논문지TC
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• 제43권1호
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• pp.121-126
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• 2006

본 논문은 9.6kbps 무선 통신용 DSSS CDU방식의 모뎀을 설계 및 제작하였다 개발된 모뎀은 마이크로프로세서에서 신호를 주고받을 수 있도록 범용 인터페이스를 제공한다. 인터페이스는 8비트 데이터버스와 칩 Enable, R/W, 및 인터럽트 핀으로 구성하였다. 송신은 먼저 외부로 8비트 병렬 데이터를 받아 시리얼 데이터로 변환하고 모뎀 내부에서 8 비트 PN-code를 생성하여 Direct Sequence 방식으로 데이터를 76.Bkcps로 확산하여 전송한다 그리고 송수신기의 동기를 위해 8비트 훈련시퀀스를 데이터 프레임 헤드에 첨부하였다. 수신기의 경우 수신된 76.8kcps의 확산된 데이터에서 먼저 PN코드 동기를 찾아낸 후 훈련시퀀스를 이용하여 데이터 동기를 얻어낸다. 이를 위해 Early and Late방식을 이용하였다. 본 논문의 모뎀은 Xilinx FPGA 보드로 구현 및 검증된 후 Hynix $0.25{\mu}m$ CMOS 공정을 이용하여 ASIC 칩으로 제작되었으며, DSSS를 이용한 다중사용자 방식을 사용하였다.