• Journal of Chest Surgery
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• 제42권1호
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• pp.14-21
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• 2009

배경: 심방세동은 관상동맥우회로술후 흔히 발생하는 합병증으로, 대부분 일시적이고 양호한 경과를 보이나, 혈전색전증의 위험성을 증가시키며, 유병률의 증가와 재원기간의 증가로 인하여 의료비용의 증가를 초래할 수 있다. 대상 및 방법: 1994년 1월 1일부터 2007년 12월 31일까지 단독관상동맥우회술을 시행한 190명의 환자 중 수술 후 심방세동이 발생한 군(1군: n=139)과 발생하지 않은 군(2군: n=51)을 나누어 수술 후 심방세동 발생율, 환자의 특성, 수술관련 인자 및 수술 후 심방세동 발생으로 인한 결과를 의무기록을 토대로 후향적으로 분석하였다. 결과: 수술 후 심방세동의 발생율은 26.8%였으며, 퇴원전까지 정상동방결절리듬으로 회복된 경우는 82.4%였고, 심방세동 발생 환자의 82.4%는 수술 후 3일 이내에 발생하였다. 술후 심방세동군에서는 나이가 유의하게 많았으며, 대동맥겸자 차단시간의 차이는 없었으나, 대동맥 겸차차단 해제시 자발적으로 정상 심전도를 회복하지 못한 경우가 많았으며, 체외순환시간이 더 긴 것으로 나타났다. 수술후 베타차단제의 사용이 심방세동의 발생을 감소시키는 것으로 나타났으며, 재원기간의 차이는 없었으나, 중환자실 체류기간은 심방세동군에서 유의하게 길었다. 다변량 분석에서는 연령, 대동맥겸차 해제후 자발적 심박동 회복여부, 중환자실 재원기간 및 술후 베타 차단제의 사용이 유의한 인자로 분석되었다. 결론: 관상동맥우회로술후 심방세동은 매우 흔한 합병증으로 유병률이 증가되며, 중환자실 재원기간의 증가를 초래한다. 따라서, 술후 심방세동의 발생을 예방하기 위한 조치들이 필요할 것으로 생각되며, 특별한 금기사항이 없다면, 술후 베타 차단제를 적극적으로 사용하는 것이 좋을 것으로 생각된다.

• 한국환경생태학회지
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• 제25권6호
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• pp.878-886
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• 2011

2010년 6월부터 2011년 5월까지 봉화군 7개 지점에서 어류상과 열목어 개체군 특징을 조사하였다. 조사 기간 동안 출현한 어종은 총 7과 15종 957개체 이었다. 출현한 어종 중 법적보호종에 속하는 종은 Brachymystax lenok tsinlingensis, Koreocobitis naktongensis, Cottus koreanus 등 3종 이었다. 고유종에 속하는 종은 Microphysogobio yaluensis, Coreoleuciscus splendidus, Zacco koreanus, Cobitis hankugensis, K. naktongensis, Iksookimia longicorpus, Niwaella multifasciata, Liobagrus mediadiposalis, C. koreanus, Coreoperca herzi 등 10종으로 고유화빈도가 66.7% 이었다. 우점종은 Z. koreanus(St. 1), B. lenok tsinlingensis(St. 3, 4, 5), Rhynchocypris oxycephalus(St. 2, 6, 7) 등 이었다. 열목어 전장과 체중의 관계식은 BW = 0.000008TL3.02 이었고 비만도는 평균 0.84 이었다. 전장이 80~180mm에 해당하는 개체는 만 1년생, 200~300mm는 만 2년생, 300mm 이상은 만 3년생 이상으로 추정되었다. 보호수역 내에서 열목어는 밀도는 100$m^2$ 당 평균 17 개체가 서식하는 것으로 조사되었고 보호수역 내에는 총 4,760개체가 서식하는 것으로 추정되었다.

• 한국실내디자인학회논문집
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• 제13권1호
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• pp.62-69
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• 2004

The purpose of this study was to analyze spatial composition of elderly skilled nursing facility and to provide basic information for setting up the detail facility architectural guidelines. The results of the study were following: the residential spaces of the facilities in this study were more or less overcrowded since their capacity were more than 5 elderly residents. The dimensions of some residential spaces did not even come up to the standard of elderly welfare law in force. On the other hand, the facilities had a tendency to use a space with multiple purposes or to allocate a space but to leave it with no use. Moreover comparing with the 1st floor, which was mainly for the staffs and had enough space to spare, the upper floor which was for the elderly residents, was crowded with nursing staffs and elderly residents and had densely closed residential and public spaces. For the problem solving, law and regulation modification is needed according to the case study about the usage and using frequency of each facility space. And the crowded area for the elderly residents could be enlarged through the reduction(or combination) of the rarely used spaces and moving a few residential spaces into the 1st floor.

• Journal of Acupuncture Research
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• 제21권5호
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• pp.27-44
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• 2004

Objective : To evaluate the pain improvement of the lumbago patients taken the electro-acupuncture therapy using Visual Analogue Scale. Methods : The 25 patients of 46 lumbago patients visited department of Acupuncture & Moxibustion in National Medical Center from 1st March to 20th August had taken the electro-acupucture therapy more than 5 times. We checked on their age, sex, onset, radiating pain, back pain past history and Straight Leg Raising test. And we evaluated their improvement of back pain using Visual Analog Scale(VAS) at each visit. Then we analyzed the pain improvement by their age, sex, onset, radiating pain, back pain past history, Straight Leg Raising test, visiting frequency and Visual Analog Scale on 1st visit(VAS1) Results : VAS of 24 patients has improved and VAS of one patient has not been changed. There's no patient getting worse. The women and the positive group at SLR Test had better result of pain improvement. Conclusion : The lumbago patients taken electro-acupuncture more than 5 times showed significantly different pattern of pain improvement according to the sex and the SLR test.

• 한국의상디자인학회지
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• 제7권1호
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• pp.33-40
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• 2005

Gathering is method used to control fullness along a seam line. The purpose of this study was to investigate the relationship between the quantitative research and qualitative method; the effect of gather and the types of gather drape. The experimental design consists of four factors: (l) three kinds of different weight and thickness of fabrics (2) three kinds of stitch densities (3) five kinds of ratio of gathers (4) three kinds of grain directions. Therefore one hundred thirty five (135) samples were made. And utilized SPSS WIN 10.0 Package in data analysis. The results of this study were as follows; First, after frequency analysis, side height, hem line width, node depth, node count, node width accorded with these result data recording. Second, after correlation analysis, side height related with front statements. Side height and entire visual was negative correlation. Hem line width, node depth, node count with section statements was negative correlation but node width at section statements was positive correlation. Third, after $k^2$ analysis, front picture parts getting excellent evaluation were 1st side height, 3rd hem line width, 4th node depth, 3rd node count, 3rd node width. And section illustration parts getting excellent evaluation were 4th side height, 1st hem line width, 2nd node depth, 3rd node count, 4th node width.

• 여성건강간호학회지
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• 제12권1호
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• pp.22-28
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• 2006

Purpose: The purpose of this study was to investigate sex role identity and family group characteristics among university students. Method: The participants of the study were 325 university students at S university in Seoul from September 1st to 30th, 2001 and from September 1st to 30th, 2003. Data were collected using a structured questionnaire, sex role identity scale, and family group characteristics type scale. Data were analyzed by frequency, means, t-test, Chi-square test, and Pearson's correlation in the SPSS Win Program. Result: In this study, there was a high prevalence of androgyny to female(31.9%) and masculinity to male(39.4%) university students. There was a significant difference between male and female students in sex role identity(p=.000). "Family concord" indicated a high mean score of family group characteristics (4.71$\pm$.80). There were significant differences between family group characteristics and masculinity and femininity type. Conclusion: There is a high relationship between family group characteristics and sex role identities of university students. It is necessary to explore the varied aspects of the androgyny concept, and further research is needed on factors of family group characteristics.

• 대한조선학회지
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• 제23권2호
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• pp.1-13
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• 1986

The nonlinear hydrodynamic forces acting on a two-dimensional circular cylinder, oscillating with large amplitude in the free surface, are calculated by using the Semi-Lagrangian Time-Step-ping Method used by O.M. Faltinsen. In present calculation the position and the potential value of free surface are calculated using the exact kinematic and dynamic free surface boundary condition. At each time step an integral equation is solved to obtain the value of potential and normal velocity along the boundaries, consisting of both the body surface and the free surface. Some effort was devoted to the elimination of instability arising in the range of high frequency. Numerical simulations were performed up to the 3rd or 4th period which seems to be enough for the transient effect to die out. Each harmonic component and time-mean force are obtained by the Fourier transform of forces in time domain. The results are compared with others' experimental and theoretical results. Particularly, the calculation shows the tendency that the acceleration-phase 1st-harmonic component(added mass) increases as the motion amplitude increases and a reverse tendency in the velocity-phase 1st-harmonic component(damping coefficient). The Yamashita's experimental result also shows the same tendency. In general, the present result show relatively good agreement with the Yamashita's experimental result except for the time-mean force.

• 한국응급구조학회지
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• 제17권3호
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• pp.115-137
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• 2013

Purpose: The purpose of this study was to investigate the extended job of paramedic after the 1st job description in 2000 by the National Health Personnel Licensing Examination Board. Methods: This study was carried out from May 2012 to July 2013 on the Developing A Curriculum (DACUM) method to analysts 330 responses among 400 questionnaires (response rate 82.5%) after analysing 30 pilot questionnaires. In order to enhance validity and reliability of this job description, 2 job analysts in universities and 10 EMT-Paramedics in hospitals and fire stations were recruited. Results: There were differences between 166 (year 2000) and 240 (2012) in task element. There were higher answering at triaging patient(2.64 frequency, 4.15 importance), calling for help(2.68 frequency, 4.07 importance) in disaster emergency care. There were higher answering at measuring vital sign (3.95 frequency, 4.22 importance), measuring ECG(3.84 frequency, 4.14 importance), wound care(3.48 frequency, 3.86 importance), bleeding control & wound care(3.46 frequency, 3.86 importance), applying $O_2$(3.40 frequency, 3.94 importance) in physician assistant. Conclusion: Scope of extended practice as a physician assistant in hospital setting recommended us to replace the present curriculum and national exam with new curriculum and national written & skill test.

• 한국어류학회지
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• 제34권3호
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• pp.160-171
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• 2022

강릉시 주수천의 어류군집 특징 및 쌀미꾸리의 서식지 특징과 연령을 밝히기 위해 2013년 1월부터 12월까지 조사를 실시하였다. 어류상 조사 결과 주수천은 10과 23종이 채집되었고, 우점종은 참갈겨니 Zacco koreanus (22.1%), 아우점종은 버들개 Rhynchocypris steindachneri (20.1%)였으며, 그 다음으로 민물검정망둑 Tridentiger brevispinis (10.7%), 대륙종개 Orthrias nudus (9.7%), 피라미 Zacco platypus (8.6%), 쌀미꾸리 Lefua costata (7.9%), 참종개 Iksookimia koreensis (6.0%), 가시고기 Pungitius sinensis (3.0%) 등의 순으로 우세하였다. 환경부지정 멸종위기 야생생물은 가시고기 1종이 채집되었고, 한국고유종은 참갈겨니, 참종개, 미유기 Silurus microdorsalis, 둑중개 Cottus koreanus 4종이, 회유성 어종은 황어 Tribolodon hakonensis, 빙어 Hypomesus nipponensis, 큰가시고기 Gasterosteus aculeatus, 연어 Oncorhynchus keta, 은어 Plecoglossus altivelis 5종이 채집되었다. 군집구조는 최상류(St. 1), 상류(St. 2~4), 중류(St. 5), 하류(St. 6)로 구분되었으며, 하천 건강성 평가는 매우좋음(5개 지점)과 좋음(1개 지점)으로 양호하였다. 쌀미꾸리의 주요 서식지는 하천 중·하류(St. 5~6)의 수초 지대로 하상이 펄로 이루어졌으며 수심 40~80 cm의 유속이 느린 정수역이었다. 또한 연령(암컷)을 전장빈도분포도로 추정한 결과, 산란이 시작되는 5월 기준 24~37 mm는 만 1년생, 38~51 mm는 만 2년생, 52~63 mm는 만 3년생, 64~77 mm는 만 4년생, 80~91 mm는 만 5년생 이상으로 추정되었다. 끝으로 주수천 어류군집 특징 및 쌀미꾸리의 서식지 특징과 연령 등에 대해 논의하였다.

• 한국전자통신학회논문지
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• 제3권2호
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• pp.53-57
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• 2008

도파로 급전 방법의 인쇄형 모노폴 구조를 응용하여 UWB대역인 이중 주파수 대역 프린트형 이중 모노폴 안테나를 설계 및 제작하였다. 이중대역을 얻기 위하여 기존의 단일 모노폴 구조를 수정한 이중 모노폴 구조를 제안하였다. 제안된 안테나는 기존의 모노폴 안테나와 동일한 무지향 복사 특성을 가지며 평면으로 구현되어 모노폴 안테나 보다 크기가 작고 높은 이득을 갖는다. 두개의 단일 모노폴은 상호 임피던스 매칭을 위한 스터브로 작용하여 임피던스 매칭이 용이하고 이에 따른 대역폭의 증가를 향상 시킬 수 있었다. 안테나의 대역폭은 VSWR$$\geq_-$$2를 기준하여 350MHz (1.69~2.04[GHz]z])와 2,670MHz (4.33~6[GHz]), 3980MHz (6.1~10.08[GHz])의 결과를 얻었다. 이는 PCS대역(1.75~1.87[GHz]) 과 UWB대역을 충족시킬 수 있다.