• 센서학회지
• /
• 제21권4호
• /
• pp.241-248
• /
• 2012

Recently healthcare industry such as pharmaceutical, medical device and healthcare service technology is growing significantly. Mobile healthcare has attracted big attention due to IT convergence technology. Paradigm of healthcare has been changed from the 1st generation(communicable disease prevention) and the 2nd generation(treatment of disease due to extended life expectancy) to the 3rd generation(extended life expectancy due to prevention and control). In our study, we suggest the 3rd generation mobile healthcare system using Bluetooth based wearable ECG monitoring system and smart phone technology. The mobile healthcare system consists of wearable shirts with Bluetooth communication module, ECG sensor, battery, and mobile phone. The ECG data is obtained by a miniaturized sensor and the data is transferred to a mobile phone using Bluetooth communication. Then, user can monitor his/her own ECG signal on an application using Android in mobile phone. The Bluetooth communication device is used due to highly reliable data transmission property and the Bluetooth chip is embedded in every mobile phone. The wearable shirts with chest belt of Bluetooth ECG module is designed with a focus on convenience in the daily life of a wearer. The ECG signal evaluation software in Android based mobile phone is developed for the health check and the ECG signal variation is tested according to the activities of the wearer such as walking, climbing stairs, stand up and sit down, and so on.

• Parasites, Hosts and Diseases
• /
• 제55권6호
• /
• pp.631-641
• /
• 2017

A survey was performed to investigate the infection status of zoonotic trematode (ZT) metacercariae in fish from a local market in Yangon City, Myanmar. A total of 264 fish (12 species) were collected through 4 times from December 2013 to June 2015. All collected fish were transferred to our laboratory on ice and examined by the artificial digestion method. More than 7 species of ZT metacercariae, i.e., Haplorchis taichui, H. pumilio, H. yokogawai, Centrocestus spp., Stellantchasmus falcatus, Pygidiopsis cambodiensis, and Procerovum sp. were detected. Metacercariae of H. taichui were collected in 58 (42.3%) out of 137 fish (5 species), and their average density was 42.9 per fish infected. Metacercariae of H. pumilio were detected in 96 (49.0%) out of 196 fish (9 species), and their average density was 23.6 per fish infected. H. yokogawai metacercariae were found in 40 (50.0%) out of 80 fish (5 species), and Centrocestus spp. metacercariae in 91 (50.8%) out of 179 fish (8 species), and their densities were 306 and 25.8 per fish infected, respectively. Metacercariae of S. falcatus and P. cambodiensis were detected only in mullets, Chelon macrolepis. A total of 280 Procerovum sp. metacercariae were found in 6 out of 12 climbing perch, Anabas testudineus. Morphological characteristics of adult flukes recovered from experimental animals were described. It has been first confirmed that fish from Yangon, Myanmar are commonly infected with various species of ZT metacercariae.

• 한국운동역학회지
• /
• 제15권1호
• /
• pp.207-219
• /
• 2005

The purpose of this study was to determine the effect of the foot rotation on the lower limb muscles. Fourteen subjects performed step-up/step-down at a cadence of 80 beats/min, exercises with the foot neutral, $35^{\circ}$ internally rotated, and $35^{\circ}$ externally rotated, respectively. For each variable, a one-way analysis of variance (ANOVA) was used to determine whether there were significant differences between genders and among the eight types of jump. When a significant difference was found in jump type, post hoc analyses were performed using the Tukey procedure. A confidence level of p < .05 was used to determine statistical significance. The results showed that significant changes in averaged IEMG values occurred with the internal rotation of the foot in the lateral gastrocnemius during the knee extension, and in the semitendinosus during the knee flexion. During the knee extension, however, the internal rotation of the foot produced a significantly lower Averaged IEMG values than the neutral foot position in the medial gastrocnemius. The results also found that the peak IEMG activity of the rectus femoris during the knee extension for the external rotation of the foot was Significantly higher than the corresponding values in the neutral position of the foot, while the intenal rotaion of the foot exhibited a significant difference with the neutral position of the foot in the semitendinosus during the knee flexion. In general, the foot rotation position did not influence the average IEMG and Peak IEMG values of most muscles. The practice of adopting foot rotation to selectively strengthen individual muscles of the lower limb was not supported by this study. The external rotation of the foot produced high muscle activities in the quadriceps during the knee extension. For the knee extension, therefore, maintaining a laterally rotated position should be need for stable and comfortable position.

• 지역사회간호학회지
• /
• 제11권1호
• /
• pp.80-89
• /
• 2000

This study was designed to investigate effects on cognitive perception. health promotion activity and life satisfaction of elderly. The participants for this study were 292 in senior citizen's center in S-city. The participants were categorized by two groups. one have taken exercise regularly. at least more than one a week for 6 months, the other have not. The measurement tools were the Perceived Benefit Scale developed by Walker, et al. and translated by Kim. Hee Ja(1994), the Life Satisfaction Index developed by Neugarten. etc. and translated by Lee. Ga Ok(1994) and Self efficacy Scale developed by Kim. Hee Ja (1994). The data were collected by personal interviews. which were taken from January 11 to 16. 1999, and analyzed by SAS 6.12. The major results of this study were as follows 1) Scores of self-efficacy were higher regular exercise group than irregular group. 2) Regular exercise group have taken exercise such as jogging, climbing and the other hands irregular group have not. 3) When the participants were categorized by smoking, other health promotion behavior (weight control. diet), both scores of life satisfaction index were higher smoking group than non-smoking group, other health promotion behavior than non-health promotion behavior. 4) There was no significant difference between the two groups in terms of perceived benefit, life satisfaction, From these findings, regular exercise program will be able to provide elderly with opportunity to change positively their lives in cognitive perception. health promotion activity.

• 한국의류학회지
• /
• 제34권1호
• /
• pp.92-101
• /
• 2010

This study reports on the development of intelligent clothing using a shape memory alloy (SMA) that forms a still air layer and provides thermal insulation depending on the environment temperature. SMA springs were prepared with Nitinol and have an original length of 6mm and a latent length of 20mm with a response temperature of $24.5^{\circ}C$. Hysteresis was evaluated at a temperature between $0^{\circ}C$ and $40^{\circ}C$. An experimental outdoor jacket that was attached with 30 springs was compared with a commercial jacket in terms of the microclimate temperature, humidity, and comfort properties by human subject tests in the microclimate chamber set at $5{\pm}0.5^{\circ}C$. The results showed that the microclimate temperature of SMA embedded clothing system from the wear trials was higher than the commercial ones during the rest period after exercise, especially on the skin side. In addition the thermal, humidity, and comfort sensations of SMA embedded clothing were better than the commercial ones.

• 정보보호학회논문지
• /
• 제23권2호
• /
• pp.319-328
• /
• 2013

세계 주요 국가들은 전력수요 증가, 환경오염 등의 문제를 해결하기 위해 자국의 전력망을 스마트그리드로 변경하기 위한 노력을 기울이고 있다. 국내에서도 스마트그리드 도입을 위한 다방면의 연구가 진행되고 있다. 그러나 양방향 통신을 적용한 스마트그리드에는 기존 IT에 존재하는 사이버 위협이 적용되어, 국가적 차원에서 사회적 경제적 혼란을 야기할 수 있는 사이버 테러의 위험도 증가하고 있다. 이러한 사이버 공격에 대응하기 위해 사이버 침해사고 발생 시 이에 대한 조사와 이를 분석하고 재발 방지를 위한 노력이 필수적이다. 침해사고에 대응하기 위한 디지털 증거 수집에 대한 연구는 그간 꾸준히 진행되고 있으나 스마트그리드 환경에 적합한 디지털 증거 수집 방안에 대한 연구는 아직까지 미흡하다. 본 논문에서는 스마트그리드 환경에서 필요한 증거 수집 요구사항과 기존까지 연구된 디지털 증거 수집 방안을 분석하여 스마트그리드 환경에 적합한 디지털 증거 수집 기법에 대해 제안한다.

• 셀메드
• /
• 제5권1호
• /
• pp.6.1-6.10
• /
• 2015

Fumaria indica Linn. (Syn: Fumaria parviflora, Fumariaceae) is a wildly grown weed, mentioned and recommended in classical Ayurvedic texts for treatments of variety of ailments including dermatological diseases, topical diseases, cardiovascular complaints, circulatory disease, fever and headache etc. The present pilot study was designed to experimentally verify the possibility that fumarates are the major bioactive principles of Fumaria indica extracts involved in their stress response modulating activities, and to estimate pharmacologicallyactive dose ranges of fumarates and standardized methanolic extract of Fumaria indica (MFI). Effect of single, 5 and 10 daily oral doses of pure fumaric acid (FA), monomethyl fumarate (MMF), dimethyl fumarate (DMF) and MFI was quantified in well validated rodent models viz. apomorphine induced cage climbing, stress induced hyperthermia, and elevated plus-maze tests. Obtained results reveal high efficacy of MFI and pure fumarates possess qualitatively analogous activity profiles in all the three tests. There were no significant difference in the potencies of pure FA, MMF and DMF in the three tests, whereas efficacy of MFI in the elevated plus maze test for anxiolytics was higher than in the other two tests. Efficacies of all the four test agents in all the three tests increased with increasing number of days of oral treatments. Results of these pilot experiments should be helpful for more rational selections of pharmacologically interesting dose ranges and treatment regimens of fumarates and Fumaria indica extracts for further more holistic explorations of their diverse therapeutic potentials.

• 한국농업기계학회:학술대회논문집
• /
• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
• /
• pp.1186-1195
• /
• 1993

The Japanese type combine harvester has adopted rubber crawlers for the driving mechanism from first production . However, combine harvesters with movable track rollers in the rubber crawler system have been adopted recently for the purpose of stability at the time of climbing over the footpaths between rice fields, as the results of the machines becoming large. However, the dynamic characteristics of movable track rollers have not been clarified. For this reason, the design of movable track rollers depends on trial and errors. It is known that vibration characteristics of the vehicle with movable track rollers are different from the vibration characteristics of the vehicles with fixed track rollers even though the track roller arrangements are the same. Therefore, the theoretical analyses of movable track rollers must be hurried in order to formulate a reasonable track roller arrangement design. the authors have studied the vibration characteristics of the rubber crawler ve icle with fixed track rollers. in this study, the dynamic model of the vehicle with movable track roller sis compared with the dynamic model of the vehicle with fixed track rollers. Next, motions are simulated to analyze the movable track rollers by expanding the motion equation which were constructed for the dynamic model of the fixed track rollers.

• 한국콘텐츠학회논문지
• /
• 제9권10호
• /
• pp.75-101
• /
• 2009

본 연구는 노인용 기능성 게임 개발을 위해 중노년층 1030명을 대상으로 여가행동과 여가콘텐츠, 게임행동과 게임콘텐츠, 기능성게임 수용의지 파악을 위한 설문을 실시하고, 결과를 토대로 수요도 및 게임 요구사항을 분석한 것이다. 분석결과 노인은 건강과 휴식, 재미, 자기계발, 스트레스 해소를 위해 등산을 비롯한 정적여가활동 및 동적여가활동을 즐기고 있었는데, 궁극적으로 여가활동 중 게임활동 선호율은 낮으나, 기능성 게임을 통해 재미와 유익함을 얻을 수 있도록 건강게임이나 시뮬레이션 게임, 치료용 게임, 체험형 스포츠 게임 등 기능성 콘텐츠를 개발해 보급한다면 이용의지는 중년층에 비해 높은 것으로 나타났다. 그러나 성별, 연령별, 학력수준별, 소득수준별, 가족규모별로 일부의 수요가 다르게 나타나므로, 노인집단의 인구학적 변인을 토대로 한 게임 콘텐츠 개발을 고려해야 한다. 즉, 기능성 게임개발에 주요 목표층을 구체화하는 작업이 요구되며, 다양한 실험과 효과성 검증을 통해 편리한 이용과 기능에 대한 신뢰, 그리고 심미적 만족감을 높일 수 있도록 수요자 중심 연구개발이 지속되어야 한다.

• 한국통신학회논문지
• /
• 제32권11C호
• /
• pp.1119-1126
• /
• 2007

본 논문에서는 연방통신위원회 (Federal Communication Commission; FCC) 에서 제안한 CR (Cognitive Radio) 사용자가 주사용자 (primary user) 와 공존할 수 있는 간섭온도의 개념에 대해 살펴보고, 스펙트럼 센싱 (sensing) 후 주사용자의 신호와 간섭 및 잡음 신호의 구분가능성 여부에 따라 이상적인 간섭온도 모델과 일반적인 간섭온도 모델로 구분하여 각각의 모델에 대한 CR 사용자의 대역폭, 송신전력 및 용량을 산출할 수 있는 구체적인 간섭온도 모델 및 간섭온도 다중접속 기술에 대해서 살펴본다. 특히, T. Clancy가 제안한 간섭온도 다중접속 기술에서 공존을 위해 주사용자에게 간섭을 미치지 않게 CR 사용자에게 할당하는 방안만을 고려하였지만, 본 논문에서는 CR 사용자의 성능가지도 고려하는 공존방안을 제시하였다. 또한, 간섭온도 모델링을 통해 CR 사용자의 허용할 수 있는 최대송신전력을 도출하였으며, 도출된 대역폭과 송신전력 이용 시 주사용자 및 CR 사용자의 QoS를 만족하여 서로 공존할 수 있는 방안을 제시하였다.