• 대한조선학회논문집
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• 제46권3호
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• pp.313-314
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• 2009

To project military power, the paradigm of the modern warship aquisition has evolved with more large platform and high-technology equipment. For example, the Aegis combat system equipped warship is one of the most advanced and capable defense systems currently in use. Concurrently, if the warship attacked and disabled, it may worse the asymmetry of the battle field and it also depress the morale of the fleet. For that reason, to keep and protect few number of the big and high technology equipped warship from enemy is very important. At the present, the performance of unit weapon has enhanced remarkably. A Korean-built SS-209 class submarine, Lee Chun-ham, participated in Naval Exercise Tandem Thrust conducted in 1999, sink the target ship ex-USS Oklahoma by a single torpedo. USS Stark was struck on May 17, 1987, by two Exocet anti ship missiles and disabled. For this reason, susceptibility should be prior to vulnerability and recoverability. In this paper, deception ship which is small and chief but has very similar signatures to large and high technology equiped warship has conceptually studied by using systems engineering approach. And it may be a effective way to enhance the susceptibility of the key fighting power.

• 한국직업건강간호학회지
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• 제18권1호
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• pp.44-54
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• 2009

Purpose: The aim of this study was to examine the effects of obesity on the physiological levels of adiponectin, leptin and components of metabolic syndrome (MS) in male workers, aged 30-40 years. Methods: Body mass index (BMI) was measured with Anthropometric equipment. Blood pressure and serum parameters were measured with an automatic digital sphygmomanometer and autochemical analyzer, respectively. Adiponectin and leptin were analysed by ELISA kits and MS was defined based on the NCEP-ATP III. Results: Body fat mass of waist and hip, systolic and diastolic blood pressure were significantly higher, as expected, in the BMI>25kg/$m^2$ in comparison with the $BMI{\leq}25kg/m^2$. While fasting glucose, insulin, HOMA-IR and leptin in the BMI>25kg/$m^2$ were also significantly higher compared with $BMI{\leq}25kg/m^2$, HDL-cholesterol and adiponectin were significantly higher in $BMI{\leq}25kg/m^2$. On multiple logistic regression analysis for the components of MS, exercise, adiponectin and leptin were an only independent factor for MS in non-obese male workers($BMI{\leq}25kg/m^2$) after adjustment for age, cigarette smoking and drinking habits. Conclusion: These results suggested that the obesity in men was associated with physiological levels of adiponectin and leptin contributing to feedback control of MS and that dysfunction and/or declination in feedback control system associated with changes in physiological levels of neurptrophics: adiponectin and leptin might ultimately induce MS.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 추계학술대회
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• pp.661-663
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• 2015

현재 사용되고 있거나 개발되고 있는 모바일 피트니스 시스템은 대부분 비만과 관련된 어플리케이션이다. 이러한 시스템들은 체중을 줄이기 위해 사용자에게 알림을 주거나, 사용자의 운동량을 체크하여 소모한 칼로리를 알려준다. 그러나 사용자들의 개인적인 특성이나 환경을 고려하지 않고 보편적으로 데이터를 제공 및 관리하기 때문에 정확도가 낮다. 본 논문에서는 모바일 피트니스 시스템들의 단점을 분석하고 이를 해결하기 위해 자신과 같은 BMI 그룹에 속한 타 사용자가 사용한 운동 기구를 사용자에게 알려주는 데이터 공유 메커니즘을 제시한다. 그리고 데이터 공유 메커니즘을 기반으로 한 모바일 피트니스 시스템의 설계를 다룬다.

• 융합보안논문지
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• 제16권6_1호
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• pp.67-74
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• 2016

무기체계의 개발은 막대한 예산이 투입될 뿐만 아니라 전투준비태세에 직결된다고 판단된다. 만일 우리가 개발한 고가의 장비들이 불가동 상태가 되거나 정비를 위해 많은 시간을 정비시설에서 대기해야 한다면 이는 전투력 발휘에 지대한 영향을 미칠 것이다. 이러한 문제를 해결하기 위해서는 무기체계의 운용과 사용가능 상태가 규정에 의해 유지되고 부여된 임무를 성공적으로 수행하기 위한 노력이 필요하고, 나아가서 정비인력 및 군수지원 비용을 절감하기 위하여 RAM 분석을 실시해야 한다. 이러한 RAM 업무의 역할은 개발에서부터 체계고장률 정비도 등을 리 함으로써 체계신뢰성을 증대하고, 수명주기 비용을 절감하는 것이다. 따라서, 본 연구에서는 종합군수지원의 효과를 극대화하기 위한 RAM 분석 각 요소의 수행절차 및 방법과 제한사항 등을 파악하여 효과적인 군수지원을 연구하는데 도움이 되고자 한다.

• 한국농촌간호학회지
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• 제3권1호
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• pp.24-33
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• 2008

Purpose: To analyze health programs of the PHCP (Primary Health Care Posts) Method: From August 2006 to July 2007, data on the general quality and health program of the PHCP was requested by official letter and replies were received via E-mail. From December 8 to December 30, 2007, data from 1,268 (66.8%) PHCP out of 1,897 PHCP were analyzed using SPSS 12.0 Win program. Results: The average population covered by each PHCP is 878.3 people. For the health and special programs, Community Health Practitioners report high motivation for programs on health promotion, management of chronic illness, social welfare (40-50%). Demand by the residents was reported at 10% and increases in the health of the residents were attributed to high interest and demand. Volunteer work was 83.3% for bathing, 54.5% for equipment support and 46% for exercise programs. As elders make up 30% of the population in rural areas, there is an increasing demand for volunteer work in bathing programs. Conclusions: As the number of elders in the population increases and there is an increased need for more medical treatment for older people who are sick, the role of PHCP must be strengthened to include visits to homes of community residents. Where financial support for the PHCP is difficult, it is necessary to develop sound data on demographic characteristics of the population in order to develop efficient and effective health promotion programs. The finding that 54.7% of the population need management of chronic illness has difficulty in seeing a physician indicates a need to enhance the health care delivery system by strengthening the role of the Community Health Practitioners and including them in the civil service system to ensure stability of the PHCP.

• 복식문화연구
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• 제19권1호
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• pp.176-190
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• 2011

Today's young generation in digital era has a rich education environment and convenient life, on the other hand, there was negative impact on growth as normal body type because of adverse impact on an excessive study and insufficient exercise, etc. Also, for these people in IT culture generation, using small mobile including computer for long time is becoming main issue as changing factor in posture and body type in terms of spine like their neck disc. This body-typed characteristic reaches to normal adult body type in the process of physical development of adult woman and has least modification in body type. Therefore, despite of early young generation, body suitability of upper body clothes might caused imbalance. So, for intended to early 20s women, to design clothes with consideration on imbalance of body type by bended and curved spine, body type studies about size of upper body and forms are needed. As this researcher measured the body type of early 20s college women in metropolitan area, changes in body type of young generation with use of digital equipment recently were recognized since straight body type was decreased unequally and had characteristic in terms of changes to be bended body type. The changes of these body type should be considered to make clothes. Also, since there are some restrictions on this research objects in terms of local and numbers of measured objects, a broad interpretation of result on this research should be really careful.

• Physical Therapy Rehabilitation Science
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• 제9권2호
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• pp.98-104
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• 2020

Objective: The shoulders are a particularly an important body part for elite boxers. The purpose of this study was to investigate the characteristics of the upper trapezius (UT), infraspinatus (IS) muscle tone, pain, and isokinetic muscle function of shoulder movements such as external rotation, internal rotation, protraction, and retraction according to the scapular position of elite boxers of the Korean national team. Design: Cross-sectional study. Methods: Using the double square method, the scapular position was measured and divided into the forward scapular position group (n=8) with a measurement distance of 135 mm or more, and the normal scapular position group (n=10) with a measurement distance of less than 135 mm. Through the numeric rating scale of the subject, the pain value displayed during movement was measured. The muscle tone of the subjects' UT and IS were measured. The isokinetic muscle function of ER, IR, protraction, and retraction were measured using isokinetic exercise equipment. Results: The results of this study showed statistically significant differences when comparing muscle tone of the UT and IS, shoulder pain, isokinetic function of ER and IR, protraction, and retraction according to scapular position (p<0.05). Conclusions: The findings of this study were that shoulder muscle tone, pain, and isokinetic muscle function were affected according to the scapular position of elite boxers. In the future, this information may be a useful indicator when studying the effects of medium and long-term intervention in elite boxers who possess these characteristics.

• 한국수산과학회지
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• 제37권4호
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• pp.330-336
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• 2004

To meet the increasing demand from various fishing fields for training of fishing equipment operators, a fishing winch simulator was designed to train maritime students in the correct and safe operation of hydraulic winches under various load conditions related to fishing operations. The aim of this study is to describe the basic dynamic characteristics of the newly developed hydraulic fishing winch simulator and particularly to analyze the mechanical responses produced on the winch operation controls. The winch simulator consists of two winch units, a computer control and data acquisition system, a control consol and other associated mechanisms. When one winch is in hauling mode, the other one will always be in loading mode. The revolution speed of the hauling winch was controlled by a proportional directional control valve, and the braking torque of the loading winch was controlled by a proportional pressure control valve. The simulation experiments indicated that the dynamic characteristics of the hauling winch followed the braking response characteristics of the loading winch. The tests also showed that the warp speed and tension linearly depend on the pressure differential across the motor of the loading winch controlled by operating the proportional pressure control valve during the hauling operation. The experience gained from various training courses showed that the fishing winch simulator was very realistic and it was valuable for training novice winch operators. The results of the winch simulation exercise were recorded and used to evaluate the training on the operation and handling of the winch system. From these test results, we concluded that the tension acting on the warp during hauling operations can successfully be simulated by controlling the pressure differential across the motor with step changes of the control input signal to the proportional pressure control valve of the loading winch.

• 재활복지
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• 제21권4호
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• pp.59-75
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• 2017

본 연구는 장애인운동선수들의 스포츠상해유형에 대하여 알아봄으로써 장애인 운동선수들의 상해 예방 및 치료, 관리, 운영방안에 기초적 자료를 제공하고자 한다. 2015년에 전국장애인체육대회에 참가한 선수 171명을 대상으로 스포츠상해관련 설문을 조사하여 다음과 같은 결과를 얻었다. 상해 부위는 어깨, 손가락, 손목 순으로 상해 빈도가 가장 높았으며, 상해 유형으로는 타박상, 근육통, 염좌 순으로 높게 나타났다. 생해기전으로는 선수들과의 접촉, 기구와의 접촉으로 인한 상해가 가장 많이 발생되었다. 상해발생원인으로는 과도한 승부욕으로 인한 상해 발생가 가장 많았으며, 게임 중에 가장 많이 부상을 당한다고 하였다. 만성적 통증 부위 역시 어깨가 가장 많았으며 다음으로는 대퇴, 손목 순으로 나타났다. 상해 직후 처치는 감독이나 코치, 자가 치료가 순으로 가장 많았으며 치료는 파스나 스프레이를 이용한 치료방법이 가장 많았으며, 치료방법은 물리치료가 가장 많았다. 상해 예방방법으로 준비운동과 정리이 필요하다는 응답이 가장 많았으며 그 다음으로는 체력 훈련이 필요하다고 응답하였다. 이상의 결과를 통해, 장애인 선수들의 상해 예방 및 치료, 관리를 위한 체계적이고, 과학적인 체력관리 및 재활훈련 프로그램 제공을 위한 후속연구가 필요하다.

• 대한통합의학회지
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• 제9권1호
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• pp.173-181
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• 2021

Purpose : The purpose of this study is to compare muscle activity after applying two muscle energy techniques (MET) to subjects with forward head posture to see if the post isometric relaxation (PIR) technique is more effective than the reciprocal inhibition (RI) technique. Methods : The muscle activity was measured using EMG after applying the PIR and RI techniques to 30 adults at K College. Subjects were selected for forward head posture whose ear center was 2.5 ㎝ front of the center of the shoulder. EMG equipment was used to measure muscle activity, and the measurement sites were measured in cervical flexor and extensor muscles. The experiment period was performed once a week for a total of two weeks, and after the pre-measurement was performed for 5 minutes PIR and RI exercise. In the PIR technique, the head is tilted back in a sitting position, and the experimenter applies resistance with the same force for 7~10 seconds and repeats 3-5 times after rest. In the RI technique, in a sitting position, the subject gives the force to bend the head forward, and the experimenter applies resistance with the same force for 7 to 10 seconds, and repeats 3 to 5 times after rest. Results : The result is same as the following. In the comparison of muscle activity, there was a significant decrease in both PIR and RI at 1 and 2 weeks. And there was a greater decrease in muscle activity in PIR. There was no difference in the comparison of decrease in muscle activity at 1 week and 2 week. Conclusion : Both PRI and RI can be said to be effective in improving the function of the forward head posture in the neck muscles. Therefore, the selection of the two techniques in clinical practice should be appropriately performed under the judgment of experts according to the patient's situation.