Development of a Chest‑Belt‑Type Biosignal‑Monitoring Wearable Platform System

Joo‑Hyeon Lee,Hyun‑Seung Cho,Jin‑Hee Yang,Sang‑Min Kim,Jeong‑Whan Lee,Hwi‑Kuen Kwak,Je‑Wook Chae 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.4

The purpose of this study was to develop a wearable platform system that can detect and acquire a soldier’s biosignals (i.e., heart activity signal, respiration rate, etc.) in a nonrestrained, unconscious manner. These detected biosignals are transmitted to a processing device to analyze and monitor the soldier’s physical status. To achieve this, textile-based heart activity electrodes and a strain gauge sensor for the respiration signal measurement were developed, and their performances in detecting each signal were verifed. These sensors were embedded in a chest belt to design a wearable platform that can simultaneously measure heart activity and respiration signals. The sensor part of the chest belt has a dual layer structure to detect high-quality signals. Stretch fabric was used on the outer layer and a respiration sensor was attached to the belt. On the inside layer, a non-stretch fabric was used as the base fabric and a heart activity-sensing electrode, that is capable of taking measurements using a modifed lead-II heart activity signal induction method, was embroidered onto the fabric. Subjects were asked to wear the chest belt, and a biosignal processor module was attached to verify the system’s performance while simultaneously acquiring the heart activity and respiration signals. More specifcally, it was confrmed that the two signals were detected in a stable. It is expected that the biosignal-monitoring wearable platform system developed in this study will be able to efectively analyze and monitor soldiers’ biosignals.

마라도(제주특별자치도, 서귀포시)의 거미상

김주필(Joo-Pil Kim),예용택(Yong-Taek Ye),최한석(Han-Seok Choi),장지현(Jee-Hyeon Jang):예성훈(Seong-Hun Ye),김태우(Tae-Woo Kim),김대희(Dae-Hee Kim),지승환(Seung-Hwan Ji),이형민(Hyung-Min Lee),이형진(Hyung-Jin Lee) 한국거미연구소 2016 한국거미 Vol.32 No.2

2016년 8월 3일부터 5일까지 제주특별자치도 서귀포시 대정읍 마라도 일대를 한국거미연구회 하계 합동채집회에 김주필, 예용택, 최한석, 장지현, 예성훈, 김태우, 김대희, 지승환, 이형민, 이형진, 신정애, 허양미, 이영경, 최라미, 이윤정 등이 채집조사한 결과 15과, 39속, 45종의 거미류가 조사연구되어 이에 보고하는 바이다. The authors investigated the spiders of the Mara Island in Jeju Island. In the present paper 45 species of 39 genera belong to 15 families were identified. These specimens are deposited at the Joo-Pil Spider Museum, Namyangju-Si, Kyunggi-Do.

운송업 종사 근로자의 건강가치 인식 및 건강증진 행위와 건강진단 결과와의 관련성

이선주,박정일,임현우,노영만,정치경 大韓産業醫學會 2000 대한직업환경의학회지 Vol.12 No.3

목 적 : 건강진단 결과 건강인과 요관찰자 및 일반질환자를 포함한 비건강인에서 건강가치인식 및 건강증진행위 실천정도를 알아보고, 건강인과 비건강인으로 층화한후 건강가치인식이 높은 군과 낮은 군에서 건강증진행위 실천에 차이가 있는지를 비교함으로써 바람직한 건강증진 프로그램 개발과 적용을 위한 기초자료를 제공하고자 수행되었다. 방 법 : 1998년도 건강진단을 받은 철도운송업 종사 근로자 4,919명중에서 자기기입식 설문에 응답한 건강인 233명, 요관찰자 172명, 일반질환자 160명을 연구대상으로 하였다. 결 과 . 삶의 가치 중 건강을 가장 가치있게 인식하고 있는 근로자가 건강인에서 37.3%, 비건강인에서 36.1%로 두 군간에 차이가 없었다. 건강증진 행위 실천에 있어 비 건강인이 건강인에 비하여 운동영역의 실천정도가 유의하게 낮았으며 대인관계 지지영역은 유의하게 높았다. 그 외의 영양, 스트레스관리, 자아실현 및 건강책임 관련 영역의 실천정도는 건강인과 비건강인 사이에 유의한 차이가 없었다. 건강인에서의 연령 변수를 제외하고 건강인 및 비건강인 모두 일반적 특성에 따른 건강가치 인식도에 차이가 없었다. 건강가치 인식도에 따른 건강증진행위 실천 정도는 건강인의 경우 건강가치 인식이 높은 군이 낮은 군에 비하여 자아실현 및 건강책임 영역의 실천 정도가 유의하게 높았으며, 비건강인의 경우 유의한 차이를 보이는 영역은 없었다. 결 론: 건강가치 인식, 건강증진행위 실천 정도와 건강진단 결과와의 관련성은 매우 낮게 나타나 건강증진 프로그램 개발과 적용에 있어 인식보다는 실천에 촛점을 두어야 될 것으로 판단된다. Objectives : This study was performed to compare health value cognition and health promotion behavior compliance between healthy group and not being healthy group, and to evaluate the difference of health promotion behaviors compliance between high group and low group in health value cognition. Methods . The subjecus of this study were 565 wor17ers, 233 healthy workers, 172 observation cases and 160 disease cases, selected from 4,919 transit coporation's workers. Results : In health promoting behavior compliance, not belng healthy group showed lower level than healthy group in exercise and showed higher level than healthy group in interpersonal support significantly. A worker who replied on "health" as the most value in life was consisted in 37.3% of healthy group and 36.1% of not belng healthy group, Health value cognition according to general characteristics showed no significant difference except only variable of age in healthy group. Health promoting behavior compliance according to cognition of health value showed in healthy group that a high level group of health value cognition was more significant difference than a low level group in self aclualization and health responsibility of health promoting behavior and didn't show difference significantly in not being healthy group. Conclusions : In conclusion, the relationship between health value cognition, health promotion behavior compliance and periodic health examination results showed weakly. Therefore, in order to develop and apply spontaneous health promotion program, it was considered that should emphasize compliance than cognition.

東萊福泉洞古墳群 第2次 調査槪報

李賢珠,李尙律,全玉年 嶺南考古學會 1989 嶺南考古學 Vol.- No.6

오원천의 식물플랑크톤 군집에 대한 연구

주현수,김진,박종천,정원석,송현철,이용탁,이우범 國立麗水大學校 環境問題硏究所 2004 環境硏究論文集 Vol.6 No.-

We carried out a study on phytoplankton community at Owon stream, Jeollabukdo, Korea. The author have examined 83 taxa of the phytoplankton from researched area. These were composed of 5 classes, 11 orders, 21 families, 44 genera, 79 species, and 9 varieties. The composition of occurrence species were as follows: green algae are 48.2%, diatoms are 33.7%, blue green algae are 10.8% and etc(7.3%). Dominant species were Chlamydomonas angulosa, Pandorina morum, Coelastrum microporum, Scenedesmus quadricauda, Staurastrum gracile, Melosira varians, Me. italica, Synedra ulna, Sy. acus, Cocconeis placentula, and Cymbella tumida. The standing crops varied from 1,650cells/ℓ to 47,000cells/ℓ. Phytoplankton density of Owon stream were lower about 8.6 times to a 1,531 times than those of other lakes and rivers in Korea. So, to preserve the water quality in Owon stream we have to manage continuously on the nitrogen and phosphorus.

장상피화생과 Helicobactor pylori와의 상관 관계에 관한 연구

이복희,김대수,이현숙,진영주,윤세진,송형근,성노현,정현용,이동호 충남대학교 의과대학 지역사회의학연구소 1994 충남의대잡지 Vol.21 No.2

In 1965 Lauren divided advanced gastric carcinoma into two main types-namely, "intestinal" and "diffuse" type carcinoma, which differ not only morphologically but also in their clinical and epidemiological characteristics. Moreover, a different histogenetic process has been postulated by many authors that intestinal type gastric carcinoma might arise from areas with intestinal metaplasia. Since Warren and Marshall reported the presence of Helicobacter pylori in the stomach in 1983, strong evidence has been obtained that there is a close relationship between Helicobacter pylori and chronic gastritis, atrophic gastritis, intestinal metaplasia, and intestinal type gastric carcinoma. To study the relationship between intestinal metaplasia and Helicobacter pylori infection, we performed gastroscopic biopsies and CLO tests taken from patients with epigastric pain. Only 87 patients with macroscopically suspected antral gastritis were included. The prevalence of intestinal metaplasia in gastric antral biopsies increased from 33.3% in the age group<30 years to 63.6% in the age group 60 years. When all patients were divided into two age groups-namely, (i)<50 years(n=41) and (ii)≥ 50 years(n-=46), intestinal metaplasia was found significantly more often in patients ≥ 50 years. ((i) 39.2%, (ii) 54.3%, p<0.0001). The prevalence of Helicobacter pylori in gastric antral biopsies decreased from 66.7% in the age group<30 years to 62.5%, in the age group in the age group 50 to 59 years. When all patients were divided into the same two age groups-namely(i)<50 years and (ii)≥50 years, the prevalence of Helicobacter pylori did not differ between two groups in a statistically significant way. The mean age of intestinal metaplasia positive patients who were also Helicobacter pylori positive was 48±11.0(mean±S.D.)years, whereas the mean age of intestinal metaplasia positive patients who were Helicobacter pylori negative was 52±9.7(mean±S.D.)years. In conclusion. although our data do not prove a causal relationship between Helicobacter pylori infection and the histogenesis of intestinal metaplasia, we suggest that Helicobacter pylori plays an important role in the development of intestinal metaplasia in the gastric mucosa. Whether Helicobacter pylori has to be present at all times during this process or is only necessary as a 'trigger', needs further research.

토지적성평가 개선방안에 관한 연구

서주환,최현상,양승희,이신형 경희대학교 디자인연구원 2003 예술· 디자인학연구 Vol.6 No.1

Concerning the national land management of Korea, the disordered development in Semi-agriculture and forestry area has been issued since 1990s. Due to the adoption of Semi-agriculture and forestry area system in 1994, and injudicious encroachments in suburb area, the efficient national land management system is facing to difficult problems. Therefore, the Korean government promoted "the reform of national land use plan" as a part of the synthetic counter-plan for preventing the disordered development of national land. The reform of national land use plan has three areas; preserve-management, product-management, plan-management. With these reasonable divided standards, Land Suitable Analysis is executing properly. In this study, we make definitions of Land Suitability Analysis and Land Classification based on previous researches in those areas. This study analyzes the purpose, the evaluation standard, the merits and demerits as well as grading classifications of L.S.A research in domestic, external area. Throughout this method, we point out problems in L.S.A along with solutions. This research suggests that L.S.A could be used as a practical use for the basic standard information of the city planning and land use planning.

항진균물질을 생산하는 Streptomyces fimbriatus AF21-3의 분리 및 동정

장주현,김정완,이우윤,윤영준,이경림,김승곤,이태수 인천대학교 2000 基礎科學論文集 Vol.11 No.1

Actinomycetes were isolated from soil to find new antibiotics. An active antimicrobial compound was isolated from the culture filtrate of Actinomycetes AF 21-3. The Actinomycetes strain which showed strong antifungal activity against Candida tropicalis and Microsporum gypseum was identified as Streptomyces fimbriatus and named as Streptomyces fimbriatus AF 21-3.

우포늪(경상남도, 창녕군)의 거미상

김주필(Joo Pil Kim),예용택(Yong Taek Ye),예성훈(Seong Hun Ye),유혜성(Hye Seong Yeu),장지현(Jee Hyeon Jang),오종화(Jong Hwa Oh),채준호(Jun Ho Chae),김태우(Tae Woo Kim),김민섭(Min Seob Kim),변진관(Jin Gwan Byun),이형민(Hyung Min Lee),김 한국거미연구소 2015 한국거미 Vol.31 No.2

2014년 8월 5일부터 7일까지 경상남도 창녕군 일대에 위치한 대한민국 최대의 내륙 습지인 우포늪 일대를 한국거미연구회 회원(김주필, 예용택, 장지현, 오종화, 예성훈, 유혜성, 채준호, 김태우, 김민섭, 변진관, 성민규, 김지후, 김대희, 김녕, 이정준, 이형민 등 16명)들이 채집 조사한 결과 16과 48속 69종의 거미가 조사 연구되어 이에 보고하는 바이다. The authors investigated the spiders of the Upo wetland from 5th August to 7th August, 2014. In the present paper 69 species of 48 genera belong to 16 families were identified. These specimens are deposited at the Joo-Pil Spider Museum, Namyangju-Si, Kyunggi-Do.

HPLC를 이용한 백삼,홍삼,홍삼농축액의 유리당 성분 및 함량 확인

맹주양;이용구;이숙재;정진아;황규찬;김태희;문용현 순천향대학교 기초과학연구소 2010 순천향자연과학연구 논문집 Vol.16 No.2

Free sugars-Fructose, Glucose, Sucrose, Maltose-were isolated from white ginseng, red ginseng, and red ginseng concentrate by HPLC. The results for the content of sugar was as follows: in white ginseng, Sucrose(30.70ppm) > Maltose (7.45ppm) > Fructose(0.42ppm) > Glucose(0.22ppm), in red ginseng, Maltose(33.65ppm) > Sucrose(8.84ppm) > Fructose (0.81ppm) > Glucose(0.43ppm), and in red ginseng concentrate, Sucrose(14.12ppm) > Fructose(9.23ppm) > Maltose(6.86ppm) > Glucose(5.87ppm). Overall results suggest that, in the contents of sugar, monosaccharide(Glucose) is lowest and disaccharide(Sucrose, Maltose) is highest, in all of ginseng.