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고혈압(高血壓) 뇌졸중(腦卒中) 환자(患者)에 대한 사혈(瀉血)의 강압효과(降壓效果)
문장혁,안호진,정동화,윤형선,장재원,김경선,문익렬,백종엽,이상무,Mon, Jang-hyuk,Ahn, Ho-jin,Jeong, Dong-hwa,Yoon, Hyung-sun,Jang, Jae-won,Kim, Kyung-sun,Moon, Ik-ryoul,Baek, Jong-yeob,Lee, Sang-moo 대한침구의학회 2003 대한침구의학회지 Vol.20 No.2
Objective : The aim of this research was to investigate the depressive effect of depletion of B15(心兪), B23(腎兪), L5(尺澤), B40(委中) in hypertentive stroke patients. Methods : Depletion on B15(心兪), B23(腎兪), L5(尺澤), B40(委中) in hypertentive stroke patient who were admitted in Dong-Seo Oriental Medical Hospital every other day form 4 weeks, without western antihypertensive drug. Results : After treatment in 2nd week, depletion on B15(心兪), B23(腎兪), L5(尺澤), B40(委中) without western antihypertensive drug increased the systolic and diastolic blood pressure. After treatment in 4th week, depletion on B15(心兪), B23(腎兪), L5(尺澤), B40(委中) without western antihypertensive drug decreased the systolic and diastolic blood pressure. After treatment in 4th week, values of RBC and hemoglobine were not significantly changed. Conclusions : Continous depletion on B15(心兪), B23(腎兪), L5(尺澤), B40(委中) in hypertentive stroke patient without western antihypertensive drug implies decreasement of blood pressure, without change of values of RBC and hemoglobine.
Test-bed Implementation of DC Microgrid in Islanding Mode
Dong-Keun Jeong,Ju-Won Baek,Jin-Tae Cho,Hee-Je Kim,Jee-Hoon Jung 전력전자학회 2015 ICPE(ISPE)논문집 Vol.2015 No.6
In order to increase the reliability and response speed of a DC microgrid system, the power management algorithm for autonomous operation is proposed using a DCbus signaling (DBS) method, instead of the centralized power management system which needs communications among power interfaces. The DC-bus voltage is considered as an information signal of the status of the DC-bus. In addition, DC-bus voltage bands are proposed to classify the scenarios of DC-bus conditions. The DC microgrid components individually operate to achieve the functionality of the system control in the DC-bus voltage band. This paper suggests a control strategy for the power management among independent components in the islanding mode. Its test-bed contains the power management algorithm which consists of a grid-connected AC/DC rectifier, a bidirectional DC/DC converter, a renewable energy simulator, DC loads, and a DC-bus protector. The proposed power management algorithm in the islanding mode is analyzed via simulation result, which is verified from the proposed DC microgrid testbed.
A DIFFERENTIAL EQUATION FOR MULTIPLE BESSEL POLYNOMIALS WITH RAISING AND LOWERING OPERATORS
Baek, Jin-Ok,Lee, Dong-Won Korean Mathematical Society 2011 대한수학회보 Vol.48 No.3
In this paper, we first find a raising operator and a lowering operator for multiple Bessel polynomials and then give a differential equation having multiple Bessel polynomials as solutions. Thus the differential equations were found for all multiple orthogonal polynomials that are orthogonal with respect to the same type of classical weights introduced by Aptekarev et al.
Analysis of Research Trends Using G-power in Physiotherapy Research in Korea: Systematic Review
Baek, Ki Hyun,Lim, Mi Soo,Park, Mi Ho,Seo, Hee Ae,Hyeon, Dong A,Lim, Hyoung-won 대한물리치료학회 2020 대한물리치료학회지 Vol.32 No.2
Purpose: This study examined the research trends using G-power centered on major Korean registered sites and presents the research trends of studies with a high level of evidence. Method: This study selected three research journals listed in the Korea Research Foundation among physical therapy journals in the field of physiotherapy. The selected papers were classified according to the following: 1) study type, 2) study level, and 3) quality of the study. Result: Sixty-nine articles were selected and classified according to the study type. The musculoskeletal system, central nervous system, and others comprised 73.91% (n=51), 17.39% (n=12), and 8.7% (n=6), respectively. The results were classified into 62 experimental studies, four observational analytic studies, and three descriptive studies. The experimental studies included 22 randomized controlled trials (level 2) and 40 non-randomized trials (level 3). Sixteen randomized controlled trials were classified for a qualitative evaluation, and 12 papers with a score of six or more (good) were found. Conclusion: Many high-level studies were found in G-power, and the quality of the study was also good. Therefore, the effective number of samples obtained using G-power is one of the ways to enable high-quality research.
A Retrospective Analysis of Ruptured Breast Implants
Baek, Woo Yeol,Lew, Dae Hyun,Lee, Dong Won Korean Society of Plastic and Reconstructive Surge 2014 Archives of Plastic Surgery Vol.41 No.6
Background Rupture is an important complication of breast implants. Before cohesive gel silicone implants, rupture rates of both saline and silicone breast implants were over 10%. Through an analysis of ruptured implants, we can determine the various factors related to ruptured implants. Methods We performed a retrospective review of 72 implants that were removed for implant rupture between 2005 and 2014 at a single institution. The following data were collected: type of implants (saline or silicone), duration of implantation, type of implant shell, degree of capsular contracture, associated symptoms, cause of rupture, diagnostic tools, and management. Results Forty-five Saline implants and 27 silicone implants were used. Rupture was diagnosed at a mean of 5.6 and 12 years after insertion of saline and silicone implants, respectively. There was no association between shell type and risk of rupture. Spontaneous was the most common reason for the rupture. Rupture management was implant change (39 case), microfat graft (2 case), removal only (14 case), and follow-up loss (17 case). Conclusions Saline implants have a shorter average duration of rupture, but diagnosis is easier and safer, leading to fewer complications. Previous-generation silicone implants required frequent follow-up observation, and it is recommended that they be changed to a cohesive gel implant before hidden rupture occurs.
Chronic gastric anisakiasis provoking a bleeding gastric ulcer
Dong Baek Kang,Won Cheol Park,Jeong Kyun Lee 대한외과학회 2014 Annals of Surgical Treatment and Research(ASRT) Vol.86 No.5
Gastric anisakiasis is a parasitic disease caused by the gastric mucosal penetration of the Anisakis larvae ingested with raw fish. Acute gastric anisakiasis is diagnosed by the endoscopic visualization of Anisakis larvae along with mucosal edema, erythema, hemorrhage, and/or an ulcer, whereas chronic anisakiasis is often observed as a localized tumor commonly occurring in the submucosal layer, and is characterized by eosinophilic granuloma with edema and embedded Anisakis larvae on pathological examination of surgical specimens. We report here a case of chronic gastric anisakiasis provoking a bleeding gastric ulcer, which is a rare clinical manifestation of this condition.
Application of single incision laparoscopic surgery for appendectomy in children
Dong Baek Kang,Seung Hyun Lee,Seok Youn Lee,Jung Taek Oh,Dong Eun Park,Cheol Lee,Duk Hwa Choi,Won Cheol Park,Jeong Kyun Lee 대한외과학회 2012 Annals of Surgical Treatment and Research(ASRT) Vol.82 No.2
Purpose: Recently, single incision laparoscopic surgery (SILS) has been popular in use with its progress studied for more minimally invasive surgery and cosmetic improvement. We investigated the feasibility and efficacy of SILS for appendectomy (SILS-A) in children and compare it with conventional laparoscopic appendectomy (C-LA). Methods: We studied, retrospectively, adolescent patients who underwent C-LA or SILS-A. There were 25 patients in the C-LA group and 30 patients in the SILS-A group. The clinical outcomes were compared between the groups. Results: The SILS-A procedures were performed successfully in adolescent patients . There were no significant difference between the C-LA and SILS-A group with respect to demographic data and post-operative outcomes. There was one complication (4%) in the C-LA group and two complications (6.6%) in the SILS-A group, but there was no significant difference. Conclusion: SILS-A was technically feasible and safe in children. Considering little postoperative scar and no difference in post-operative outcomes compared to C-LA, SILA could be applicable in adolescent patients. Larger studies and further technical implements will be necessary to assess the true benefit of this approach.
A New Pea Cultivar, Cheongmi with Short Stem Height, Lodging Resistance and High Yield
Won Young Han,Sang Ouk Shin,Myoung Gun Choung,Chan Sik Jung,Doo Chull Shin,Sea Kwan Oh,Sung Taeg Kang,In Youl Baek,Duck Yong Suh,Soon Chul Kim,Dong Kwan Kim,Chang Ki Son 한국육종학회 2004 한국육종학회지 Vol.36 No.5
A new pea cultivar, Cheongmi was developed at the Yeongnam Agricultural Research Institute (YARI) in 2003. It was selected from a cross YP303 (Frescoloy / Upton) // YP113 (Sparkle/Early Bird) /3/ YP115 (Sparkle / Euiseongjaerae) in 1992. The preliminary,