만성 부비동염에서 섬모운동과 전산화 단층촬영에서의 상악동 점막비후의 상관관계

민양기,전상준,이재서,이철회,이강수,윤자복,이원진,박광석 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.7

南江댐 流域에 있어서 高度에 따른 降水量分布에 關한 調査 硏究

梁崙模,朴浚一 慶尙大學校生産技術硏究所 1990 生産技術硏究所論文集 Vol.6 No.-

Based on rainfall over upper basin, dam operation would be used. There are some questions in convertion point rainfall measured in upper basin to areal rainfall. Since the rainfall varies with basin elevation, orientation, density of rain gauges and topological distribution of mountains. Among these elements, basin elevation would influence the distribution of rainfall over a basin. Therefore, this paper aims at rainfall distribution according to basin elevation in the Nam River dam basin where there have complex terrain. Authors can be formulated the relation between basin elevation and rainfall depth in the Nam River dam basin.

Delphi방법을 이용한 일차의료 고혈압 진료지침 개발 및 적용

양윤준,홍명호 한국의료QA학회 1995 한국의료질향상학회지 Vol.2 No.1

background: Guideline for practice is useful because it can be the standard for assessment and way to improve quality. We need to take account of expert opinion and consensus as well as scientific evidences to develope practice guideline because it should be practical. Delphi method has been developed to gather opinions from experts fairly. This study was designed to develop practice guideline and apply it to practices as a method to improve quality in primary medical care. Methods: Hypertension(in adults over 18 years old) was selected as a target problem. Self questionnaires about management of hypertensive patients were developed by a researcher with advice of 11 experts. The questionnaires were designed to response as a 5 pont scale. The results of previous questionary were given to respondents in second and third questionnaires. If needed, the questionnaires were changed on the previous responses. The items with medium greater than or equal to 4 point in 1st and 2nd responses were accepted in guideline. The items with medium lesser than or equal to 3 point were questioned again about whether they can be excluded or not. The criteria for assessment was made with reference to guideline and applied to 85 hypertensive patients of 9 family practitioners. At 3 months after practice guideline had been given to family practitioners, performance of same practitioners was assessed with 36 new hypertensive patients. Results: 23 professors in family medicine, 22 family practitioners and 6 cardiologists. responded among 50, 50, 15 respectively. Practice guideline with 33 items was developed as a result of 3 times questionaires. The difference of responses between professors in family medicine, family practitioners and cardiologists was not significant. Performance of practice was improved in diagnosis, history taking about 6 fields, Jaboratory examination and decision making about time fo pharmaceutical prescription. It was not improved in physical examination, life style modification, method of pharmaceutical prescription, choice of initial antihypertensives and history taking about duration of disease and diet habit. It was decreased in history taking about psychosocial factors. The assessment scores were low in history taking, physical examination and life style modification before and after use of practice guideline. Conclusion: Practice guideline for hypertension could be developed by Delphi method. Performance of practice improved partially after use of guideline.

AB 슬라이드, 크런치 및 윗몸일으키기 운동이 복직근 근활성도에 미치는 효과 : Comparison of It `s Myoelectrical Activities with Crunch and Sit-Up

지송운,김호성,양윤준,장재원 대한스포츠의학회 2004 대한스포츠의학회지 Vol.22 No.1

The purpose of this study was to compare the effect of AB slide™ on abdominal muscles with Crunch and Sit-up. Myoelectrical activities of Rectus abdominis muscles produced by AB slide™, Crunch and Sit-up were recorded. Healthy male aged from 17 to 36 years(23.0±5.9 yrs) were included fo the test. Surface electrodes were attached to upper and lower part of Rectus abdominis of the study subjects. Averaged integrated electromyography(AIEMG) and Normalized integrated electromyography(NIEMG) were recorded. The results are summarized as follows; First, the AIEMG of Sit-up were highest among them with insignificant difference statistically. Second, the NIEMG of upper part of Rectus abdominis were higher than the one of lower part with significant difference statistically(p<0.05). This phenomenon was same irrespective of the type of exercises. AB slide™ was not more effective than Sit-up and Crunch for strengthening of Rectus abdominis muscle. The upper part of Rectus abdominis was more activated than the lower part by all three exercises.

악교정 수술중 수액요법과 술후 합병증의 연관성

류정호,김대윤,배준수,양병은,유준영,김용관 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.5

Few topics in operative and perioperative patient management generate more controversy than that of appropriate fluid and electrolyte therapy. especially, controversy has swirled around colloid vs crystalloid therapy and the composition of administered fluids, agreement among clinicians as to what fluid therapy is appropriate, and in what amount, is rare. This controversy likely will be enhanced by Arieff' s provocative article. He described 11 adults and 2 pediatric patients. All developed fatal postoperative pulmonary edema, seemingly caused solely by excessive postoperative fluid administration. From January 1999 to December 1999, we investigated 24 patients, which were operated by orthognathic surgery, about the intraoperative fluid therapy and the associated effect in orthognathic surgery, which is regarded as one of the major surgery of oral and maxillofacial surgery. First, They were devided into two groups, that is one-jaw surgery and two-jaw surgery, and each groups were devided by intraoperative fluid volume of 8ml/kg/hr. Subjective assesment was collected through use of a series of 3 questionnaries. In each questionnaire, a 5-point Liekert scale was used far assessment of following parameters of recovery from anesthesia: headache, dizziness, drowsiness, nausea/vomiting, thirst. The patient completed questionnaire 1 at 4 hour after surgery, questionnaire 2 was completed at 24 hours after surgery, and questionnaire 3 was completed at 48 hours after surgery. This study demonstrated that appropriated perioperative rehydration decreases postoperative adverse outcomes and improved the patient's perception of the postoperative period.

본태성 고혈압에서 염산에포니디핀 (NZ-105, 핀테20정�)의 유효성 및 안전성 : 제3상 다기관 임상시험 The phaseⅢ multicenter open trial

배종화,손일석,강흥선,조정휘,강재헌,김성원,이선영,양윤준,김영식,선우성 대한간질학회 2003 대한간질학회지 Vol.9 No.1

만성 승모판 패쇄부전증 환자에서의 안지오텐신 전환효소 억제제의 장기 투여 효과

김대희,이명묵,이해영,조현재,박승정,서재빈,서정원,양한모,윤창환,조상호,이준희,김용진,김명아,손대원,오병희,박영배 대한순환기학회 2004 Korean Circulation Journal Vol.34 No.2

Research on Discontinuous Pulse Width Modulation Algorithm for Single-phase Voltage Source Rectifier

Yang, Xi-Jun,Qu, Hao,Tang, Hou-Jun,Yao, Chen,Zhang, Ning-Yun,Blaabjerg, Frede Journal of International Conference on Electrical 2014 Journal of international Conference on Electrical Vol.3 No.4

Single phase voltage source converter (VSC) is an important power electronic converter (PEC), including single-phase voltage source inverter (VSI), single-phase voltage source rectifier (VSR), single-phase active power filter (APF) and single-phase grid-connection inverter (GCI). As the fundamental part of large scale PECs, single-phase VSC has a wide range of applications. In the paper, as first, on the basis of the concept of the discontinuous pulse-width modulation (DPWM) for three-phase VSC, a new DPWM of single-phase VSR is presented by means of zero-sequence component injection. Then, the transformation from stationary frame (abc) to rotating frame (dq) is designed after reconstructing the other orthogonal current by means of one order all-pass filter. Finally, the presented DPWM based single-phase VSR is established analyzed and simulated by means of MATLAB/SIMULINK. In addition, the DPWMs presented by D. Grahame Holmes and Thomas Lipo are discussed and simulated in brief. Obviously, the presented DPWM can also be used for single-phase VSI, GCI and APF. The simulation results show the validation of the above modulation algorithm, and the DPWM based single-phase VSR has reduced power loss and increased efficiency.

Two-Photon Absorption Properties of 2,6-Bis(styryl)anthracene Derivatives: Effects of Donor–Acceptor Substituents and the π Center

Yang, Wen Jun,Kim, Dae Young,Jeong, Mi-Yun,Kim, Hwan Myung,Lee, Yun Kyoung,Fang, Xingzhong,Jeon, Seung-Joon,Cho, Bong Rae WILEY-VCH Verlag 2005 Chemistry Vol.11 No.14

<P>A series of 2,6- and 2,7-bis(styryl)anthracene derivatives with the donors at the styryl group and acceptors at the 9,10-positions have been synthesized, and their two-photon cross sections (Φδ<SUB>max</SUB>) were determined. These compounds exhibit a peak two-photon absorptivity (δ<SUB>max</SUB>) in the range of 700–2500 GM at 780–1030 nm. Values of λ<SUB>max</SUB> and Stokes shifts increase as the acceptor is changed to a stronger one. There is also a parallel increase in <TEX>${\lambda {{(2)\hfill \atop {\rm max}\hfill}}}$</TEX> and δ<SUB>max</SUB> with the same variation of the chromophore structure. Both <TEX>${\lambda {{(2)\hfill \atop {\rm max}\hfill}}}$</TEX> and Φδ<SUB>max</SUB> have been optimized by introducing donor-substituted styryl groups at the 2,6-positions and p-cyanophenyl groups at the 9,10-positions, respectively. The effect of a π center on the two-photon absorption properties has been assessed by comparing the existing data for a variety of D–π–D derivatives.</P> <B>Graphic Abstract</B> <P>2,6-Bis(styryl)anthracene derivatives (see figure) have been synthesized and shown to exhibit a large two-photon cross section in the peak absorptivity range of 1080–2490 GM at <TEX>${{\lambda {{(2)\hfill \atop {\rm {\rm max}}\hfill}}}}$</TEX>=780–990 nm; values which are significantly larger than those of the corresponding 1,4-bis(p-dibutylaminostyryl)benzene derivatives. <img src='wiley_img/09476539-2005-11-14-CHEM200401134-content.gif' alt='wiley_img/09476539-2005-11-14-CHEM200401134-content'> </P>

An Overview of Current Physical Activity Recommendations in Primary Care

Yun Jun Yang 대한가정의학회 2019 Korean Journal of Family Medicine Vol.40 No.3

Primary care physicians should encourage their patients to engage in adequate physical activity. Current recommendations for physical activity in adults are as follows: at least 150–300 minutes per week of moderate-intensity, 75–150 minutes per week of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate- and vigorous-intensity aerobic activity. Adults should also perform muscle-strengthening activities of moderate intensity or higher that involve all major muscle groups for 2 or more days per week. The elderly should perform additional balance training and fall prevention exercises more than 3 times a week. Children and adolescents should perform at least 1 hour of moderate-to-vigorous physical activity daily, which includes vigorous aerobic activity at least 3 days per week. As part of their 60 minutes or more of daily physical activity, resistance training and bone strengthening exercise should be done at least 3 days per week. According to new evidence, one bout of any exercises can be shorter than 10 minutes. Previously, physical activities were recommended for more than 10 minutes. For patients with diabetes, it is advisable to perform resistance exercise or short-distance running before aerobic exercise to prevent hypoglycemia. New evidence shows that dynamic resistance training is safe and effective in patients with hypertension provided the load is not too heavy. Exercise reduces pain and improves quality of life and physical function in patients with osteoarthritis,. Therefore, the treatment guidelines for osteoarthritis have been changed recently from not recommending exercise to highly recommending it.