• Ocean and Polar Research
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• 제38권4호
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• pp.303-314
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• 2016

We tested the combined effects of increased partial pressure of $CO_2$ ($pCO_2$) and temperature on the reproduction and survival of the copepod Calanus sinicus from Asan Bay, the Yellow Sea under laboratory conditions to understand the impact of acidification on copepods. Egg production rate, survival rate, and fecal pellet production of C. sinicus were not affected by 1305 ppm $pCO_2$ or with combined treatments of temperature and $pCO_2$, including $8^{\circ}C$ and 289 ppm $pCO_2$ (ambient), $8^{\circ}C$ and 753 ppm $pCO_2$ (high $pCO_2$), $12^{\circ}C$ and 289 ppm $pCO_2$ (high temperature), and $12^{\circ}C$ and 753 ppm $pCO_2$ (greenhouse), for 5 or 10 d of exposure. However, egg hatching success of C. sinicus decreased significantly in the greenhouse treatment compared with the ambient or the high $pCO_2$ treatments. These results suggest that a combined treatment ($pCO_2$ and temperature) affected egg viability more than a single treatment($pCO_2$).

• The Journal of Korean Physical Therapy
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• 제14권4호
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• pp.423-440
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• 2002

The purpose of this study is to investigate the conception and developmental process of stretching in sports physical therapy. This study is to find conception of stretching, feature and effect, principles and fundamental rule, consideration of enforcement and developmental process in order to use the basic material which is very helpful in the every field and the scene of sports needing stretching. Flexibility is the ability to move muscles and joints through their full ranges of motion. Flexibility is developed by stretching. About player who insufficiency of flexibility, patient and disabled person who restrict of range of motion, older adult who reduce of flexibility, promote of flexibility for upgrading stability and efficiency of body on the based of scientific principles is completed by stretching. The method of stretching has been developed with passive stretching, CR, PNF stretching, PIC stretching, MET stretching in the order. The effects that we can get through stretching are as follows : 1. Enhance physical fitness. 2. Optimize learning, practice and performance of many types of skilled movement. 3. Increase mental and physical relaxation. 4. Promote development of body awareness. 5. Reduce risk of joint sprain or muscle strain. 6. Reduce risk of back problem. 7 Reduce muscular soreness. 8. Reduce the severity of painful menstruation for female athletes. 9. Reduce muscular tension. 10. Advance recognition of body.

• Journal of Preventive Medicine and Public Health
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• 제24권4호
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• pp.473-484
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• 1991

Hospitals have been very susceptable to changes in external environment. Accordingly, they have been experiencing great financial difficulty due to low insurance rates and increasing competition. As a remedy, hospitals have attempted to use computer in a strategic manner. Such system is called strategic information system(SIS), and order communication system(OCS ) is an example of SIS in hospital setting. While OCS has known to be effective in reducing waiting time for outpatients, many hospitals are reluctant to introduce this system mainly because there are no real data or methods for justifying the cost of the system. Cost-benefit analysis has been traditionally used for such purpose, but this method deals with limited portion of benefits and therefore not very useful for analyzing the economic feasibility of SIS. In this paper, information economics tools which expand cost with value was used to analyze the economic feasibility of OCS. To assist the analysis, financial simulation model was developed using simulation package, called IFPS(Interactive Financial Planning System).

• 방송공학회논문지
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• 제20권4호
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• pp.641-644
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• 2015

본 논문에서는 이진 프레임 기술자와 이를 이용한 프레임 단위 유사중복 동영상 정합 알고리즘을 제안한다. 우선 동영상으로부터 취득한 프레임을 패치(patch)단위로 나누고 패치간의 관계를 이진으로 나타낸다. 그리고 두 동영상 프레임 간의 정합비용과 보상비용으로 비용 함수를 표현한다. 초기 정합과 반복적인 정합 갱신을 통해 비용 함수를 최소화한다. 실험을 통해 제안하는 이진 프레임 기술자의 적합성과 프레임 단위 정합 알고리즘 성능이 우수함을 확인한다.

• Bulletin of the Korean Chemical Society
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• 제28권8호
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• pp.1289-1293
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• 2007

Persicaside has been isolated as a new alkaloid natural compound from a methanol (EtOA)-soluble extract of Prunus persica seed. It was purified by a combination of chromatographic techniques and recrystallization. The structure of Persicaside was determined by extensive NMR experiments and mass ppectroscopic data. It inhibited nitric oxide (NO) and prostaglandin E2 (PGE2) production via suppression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2 expression in rat osteoblast sarcoma cells (ROS 17/2.8) in concentration-dependent manner whereas it spares the COX-1 enzyme activity.

• 대한수의학회지
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• 제49권1호
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• pp.59-62
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• 2009

Susceptibility to chronic wasting disease (CWD) in cervid species has been associated with polymorphisms in the prion protein gene (PRNP). The single nucleotide polymorphisms (SNPs) were found in the PRNP of the Korean subspecies of Chinese water deer via analyses of the DNA sequences obtained from 34 individual deer. Two SNPs were detected at codons 77 and 100. One SNP at codon 77 encoding Glycine was determined to be a silent mutation but the other SNP detected at codon 100 induced an amino acid change, from Asparagine to Serine. The prion protein (PrP) amino acid sequence of the water deer showed 98.8-99.2% homology with those of American elk, white-tailed deer and mule deer. The PrP of the water deer contained amino acid residues closely related with CWD-susceptibility. This study is the first to describe genetic variations in the PRNP of the Korean subspecies of Chinese water deer.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2017년도 추계학술발표대회
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• pp.81-84
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• 2017

본 논문은 반려동물 강아지를 위한 전용 관리 및 지역 애완동물 병원과의 연동을 통한 긴급 조치 서비스망의 구축, 반려동물 강아지를 키우는 사람들의 커뮤니티 운영을 위하여 필요한 스마트 App.과 Web Site에 관한 설계 연구이다. 먼저, 본 논문은 서론에서 기존의 반려동물 강아지의 관리 및 긴급 구조 시스템에 관련된 상표출원 동향을 조사한다. 본론으로, 본 논문은 한이음 프로젝트로서 반려동물 강아지 서비스/시스템/콘텐츠의 설계, 대학생 멘티들이 참여하는 역할분담을 연구한다. 결론적으로, 본 논문은 반려동물의 평상시 관리와 비상시의 긴급구조에 필요한 IoT기반의 스마트시스템과 Web Page, 스마트 단말기에서 작동하는 App.의 설계, 제작, 시험, 인증에 관하여 필요한 준비사항, 시스템 개발의 절차와 지식재산권, 기술문서의 작성법에 관하여 연구한다.

• 제어로봇시스템학회논문지
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• 제14권6호
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• pp.530-534
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• 2008

The LGP with nanometer structures resulted in enhancement of optical efficiency. Its fundamental mechanism is to recycle the polarized light via one round-trip through QWP(Quarter-wave Plate) but the maximum efficiency to reach with this method is limited up to 2. To get the larger efficiency than this a LGP with 1D PC(one-dimensional photonic crystal) nanometer-patterned on its top and bottom surfaces is suggested. For its optimum design the computer simulation is performed and suggests a grating that the spatial frequency between adjacent patterns is 500nm, its height 250nm, duty cycle 50%, and its cross section is rectangular. The angles of transmitted light are nearly the same as the results expected from the generalized Snell's law. Thus the Mathematica code, developed in this experiment, will be applied to designing the optimized LGP. The LGP with nanometer-patterened 1D PC LGP on its both surfaces shows the enhancement of transmitted intensity distribution up to 5.7 times.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 심포지엄 논문집 정보 및 제어부문
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• pp.247-248
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• 2007

컴퓨터의 발전은 철도 산업에 큰 영향을 끼치고 있다. 특히 기계식이나 수동식 신호 장치들이 마이크로프로세서를 탑재하면서 전자식, 자동식으로 변경되면서 철도 신호 시스템에 큰 변화를 가져왔다. 이로 인해 안전성은 더 높아지고 수송력 또한 증가하게 되었다. 이런 변화에 핵심적인 역할을 하는 것이 바로 열차집중제어장치이다 열차집중제어장치는 기본적인 역할은 운행되는 열차들의 운전정보를 획득하고 이 정보들을 이용하여 효율적으로 차량을 운행하게 제어하는 것이다. 하지만, 다양한 철도 차량들이 생겨나고 신호 시스템이 발전하게 되면서 열차집중제어장치도 더 다양한 기능과 처리 능력을 가지도록 설계되어져야 한다. 특히, 현재 큰 관심을 받고 있는 무인운전, 무선을 이용한 철도 시스템에서는 열차집중제어장치의 역할이 매우 중요한 부분이 되고 있다. 본 논문에서는 이런 상황을 고려하여 실시간으로 정보를 처리하고, 차량을 안전하게 제어하며, 모든 상황들을 정보화할 수 있는 열차집중제어장치에 대한 설계를 하고자 한다.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 1999년도 춘계학술대회 논문집
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• pp.242-250
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• 1999

The objective of this paper is to propose an Extended AND-OR Graph (EAOG)-driven inferential simulation mechanism with which decision makers engaged in electronic commerce (EC) can effectively deal with complicated decision making problem. In the field of traditional expect systems research, AND-OR Graph approach cannot be effectively used in the EC problems in which real-time problem-solving property should be highly required. In this sense, we propose the EAOG inference mechanism for EC problem-solving in which heurisric knowledge necessary for intelligent EC problem-solving can be represented in a form of matrix. The EAOG method possesses the following three characteristics. 1. Realtime inference: The EAOG inference mechanism is suitable for the real-time inference because its computational mechanism is based on matrix computation.2. Matrix operation: All the subjective knowledge is delineated in a matrix form, so that inference process can proceed based on the matrix operation which is computationally efficient.3. Bi-directional inference: Traditional inference method of expert systems is based on either forward chaining or based on either and computational efficiency. However, the proposed EAOG inference mechanism is generically bi-directional without loss of both speed and efficiency.We have proved the validity of our approach with several propositions and an illustrative EC example.