• Title/Summary/Keyword: 후향연구

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A Study on Flow Characteristics of Two-Dimensional Backward-Facing Step by CFD (CFD에 의한 2차원 후향계단에서의 재부착 유동특성에 관한 연구)

  • 이영호
    • Journal of Advanced Marine Engineering and Technology
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    • v.23 no.1
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    • pp.9-18
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    • 1999
  • The present study is aimed to investigate flow characteristics of two-dimensional backward-fac-ing step by numerical approach. A convection conservation difference scheme based upon SOLA algorithm is used for the solution of the two-dimensional incompressible Navier-Stokes equations to simulate the laminar transitional and trubulent flow conditions at which the experimental data can be available for the backlward-facing step. The twenty kinds of reynolds number are used for the calculations. In an effort to demonstrate that the reported solutions are dependent on the mesh refinement computations are performed on seven different meshes of uniformly increasing refinement. also to investigate the result of inflow dependence two kinds of the inflow profile are chosen for the laminar flow. Irregular grid is adopted to minimize the errors on the satis-faction fo the discretized continuity. As criterion of benchmarking the result of numerical simula-tion reattachment lengthis used for the selected Reynolds numbers. The results of the present study prove the fact that the numerical predictions agree well with the experimental data and the flow characteristics are shown at the backward-facing step.

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Effects of Oriental Medical Treatment on ADHD - A retrospective clinical survey - (ADHD에 대한 한방치료의 효과에 대한 후향적 관찰 연구)

  • Byun, Ki-Won;Kim, Joo-Ho;Kim, Jong-Woo;Chung, Sun-Yong
    • The Journal of Korean Medicine
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    • v.32 no.4
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    • pp.75-82
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    • 2011
  • Objectives: This case report aimed to evaluate whether oriental medical treatment was effective on ADHD through a records review of a local oriental medical clinic. Methods: We reviewed clinical charts of a local oriental medical clinic between December 2007 and September 2010 to select ADHD patients. Among those patients, for comparison before and after treatment, we selected cases which had at least twice Stroop test results and 2 months of treatment. Baseline, 3-month and 6-month Stroop test results were compared. Oriental medical treatment consisted of 2 months' herbal medicine, periodic acupuncture and exercise. Results: 1. 3-month data showed that subjects were 12 and improved word score and word-color score of Stroop test. 2. 6-month data showed that subjects were 20 and improved word score, color score, and word-color score of Stroop test. Conclusions: 1. Relatively short term herbal medication and exercise are effective on the word score and word-color score of the Stroop test. 2. After short term herbal medication, continuous exercise maintained the effects of short term oriental medical treatment. 3. We need to consider the balance of left and right as an important point of exercise, but further study is needed.

A Retrospective Study on Herbal Medication and Obesity for Children (소아의 한약 복용과 비만에 대한 후향적 연구)

  • Jang, Ji-Hye;Kang, Hyun-Kyoung;Lee, Seung-Yeon
    • The Journal of Pediatrics of Korean Medicine
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    • v.20 no.2
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    • pp.35-44
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    • 2006
  • Objective : As today obese children have increased rapidly in Korea, the interest has been much increased. And parents concern about the effect of Herbal Medication(HM) on gaining weight. Therefore we had a retrospective study HM and obesity for children. Method : We examined medical record of 38 patients who visited to Department of Pediatrics in 00 medical center from 2002 to 2006 and took HM. Their Hight, Weight, Obesity Index(OI) were estimated at two points: before and after HM treatment. And they were divided into two groups according to the HM type and analyzed for differences of OI. Result : There were no significant changes in 38 patients's OI before and after treatment. But only one case gained over weight(OI: 21.31). OI increased slightly after treatment but there were not statistically significance. OI according to the HM type had slightly difference but there were not statistically significance. There were no connections between HM type, the number of days taking HM and changes of OI. Conclusion : On the basis of this study, we thought there were no connections between HM and obesity for children. But this study's cases are small in number so more study is need.

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Effect of Comprehensive Korean Medicine with Rehabilitation in Stroke Patients: A Retrospective Study (뇌졸중 환자의 재활에서 포괄적인 한방치료의 효과: 후향적 연구)

  • Kim, Min Su;Moon, Byung Soon
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.30 no.5
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    • pp.355-359
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    • 2016
  • This study is to investigate the effect of the level of Korean medical intervention (KMI) on the recovery of activity of daily living (ADL) and the motor function in patients with stroke. A total of 43 stroke patients were recruited. The participants were divided into two groups, the basic Korean medical intervention (BKM) and the comprehensive Korean medical intervention (CKM) group. The patients in BKM group were treated with the basic acupuncture and the consultation of Korean medicine doctors. The treatments of CKM group patients included the comprehensive herbal medical therapies in addition to the treatments of BKM group. The western rehabilitation therapies were performed in all participants with KMI. The functional outcomes using modified Barthel Index of Korean version (K-MBI) and Fugl-Meyer assessment (FMA) were analyzed before and after the treatment between two groups. Significant differences between the BKM and the CKM group were demonstrated in both K-MBI and FMA (p<0.05). There were significant relationships between the level of the KMI and K-MBI/FMA (p<0.05). In conclusion, the comprehensive KMI was more effective to improve the ADL and motor function in patients with the stroke east-west integrative medical care.

Treatment Results of Rhabdomyosarcomas of Head and Neck (두경부의 횡문근육종에서 다방면요법의 효과)

  • Ahn Ki-Jung;Suh Chang-Ok;Kim Gwi-Eon
    • Korean Journal of Head & Neck Oncology
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    • v.7 no.1
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    • pp.45-51
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    • 1991
  • 최근 횡문근육종을 치료함에 있어서 수술적 요법, 방사선 치료, 강암 약물요법을 적절히 병행함으로써 치료에 따르는 후유증을 극소화하면서 괄목할만한 생존율 향상을 가져오게 되었다. 특히 두경부의 횡문근육종은 소아에서 다발하고 병소의 위치에 따라서 각각 다른 임상적 특성을 가지며 수술적 절제를 했을 때 기능 및 외견상 결손이 크므로 별도의 연구 대상이 되어 왔으며 수술적 방법보다는 방사선 치료 및 항암 약물요법이 강조되고 있다. 저자들은 1976년부터 1987년까지 두경부 횡문근육종으로 진단받고 연세 암센터에서 항암 약물요법 및 방사선 치료를 받은 22명의 환자를 대상으로 하여 발생 부위, 조직 병리, 병기별 분포 및 생존율, 치료 방법에 따른 생존율을 후향성으로 분석하였다. 22명의 환자중 10 세 미만이 12 예로 가장 많았고, 13명이 배아세포형이였으며, 임상병기는 병기 III 이 가장 많아서 14 예였다. 병소의 위치는 안와가 6명으로 가장 많았고, 뇌수막주변부가 7명 (상악동 3명, 중이도 2명, 비강 l명, 비인강 1명), 기타 9명 (경부 5명, 이하선 2명, check 2명) 이었다. 5년 무병 생존율은 안와 종양에서 가장 높아서 50% 였고, 안와외 두경부가 37.5%, 뇌수막주변부가 16.7% 로 가장 낮았으며, 낮은 병기(병기 III), 배아세포형, 항암 약물 요법 병용군에서 상대적으로 높은 생존율이 관찰되었다.

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Retrospective Observational Study for Effectiveness of Inmok-tang on Dry Eye Syndrome (건성안 증후군 환자에서 인목탕의 유효성 평가를 위한 후향적 관찰연구)

  • Kim, Young-Sam;Park, Beom-Chan;Kim, Hee-Yeon;Choi, Jun-Yong;Moon, Jin-Bok;Oh, Tae-woo;Ma, Jin-Yeul;Kim, Kibong
    • Herbal Formula Science
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    • v.27 no.4
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    • pp.285-297
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    • 2019
  • Objectives : The purpose of this study is to analyze effectiveness of herbal medicine treatment on Dry Eye Syndrome. Methods : We analyze medical records of 114 patients who visited Indara oriental medical clinic for dry eye syndrome. Patients were treated with acupuncture and Inmok-tang, and the ocular surface disease index was evaluated before and after treatment. Results : Analysis of 114 medical records showed a significant decrease in the pre-treatment and post-treatment ocular surface disease index, and a statistically significant positive correlation between the duration of Inmok-tang administration and the change in the ocular surface disease index. Conclusions : Herbal medicine treatment with Inmok-tang reduces the Ocular Surface Disease Index, an indicator of subjective symptoms of dry eye syndrome.

The Retrospective Medical Charts Review of 459 Neck Pain Inpatients in Korean Medicine Hospital (경항통으로 한방병원에 입원치료한 환자 459명에 대한 후향적 연구)

  • Huh, Gun;Oh, Min-Seok
    • Journal of Korean Medicine Rehabilitation
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    • v.25 no.2
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    • pp.119-134
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    • 2015
  • Objectives The purpose of this study was to investigate the characteristics of inpatients who were admitted to Korean medicine hospital due to neck pain. Methods Four hundred fifty nine neck pain patients who were admitted to Cheonan Korean Medicine Hospital, Dae-jeon University from 1st, January, 2013 to 31th, December, 2013 were retrospectively reviewed according to medical charts. Results In this study, people in their 30s, females, within 0~2 weeks after onset, motivated by traffic accident, diagnosed with neck sprain, with no medical history related to neck pain, underwent outpatient treatment at medical institutions, took the highest percentage from each category of patients who admitted to Korean Medicine Hospital due to neck pain. In most (78.77%) of the patients, symptoms were more than improved. Conclusions Neck pain inpatients in Korean medicine hospital, it is difficult to find tendency. This study suggests the characteristics of neck pain inpatients who were hospitalized in Koean medicine hospital.

The Retrospective Review of 410 Shoulder Pain Inpatients in Korean Medicine Hospital (어깨 통증으로 한방병원에 입원한 환자 410명을 대상으로 한 후향적 연구)

  • Lee, Jae-Eun;Oh, Min-Seok
    • Journal of Korean Medicine Rehabilitation
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    • v.25 no.2
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    • pp.155-173
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    • 2015
  • Objectives The purpose of this study is to investigate the characteristics of inpatients who were admitted to Korean medicine hospital due to shoulder pain. Methods Characteristics of four hundred ten shoulder pain inpatients of single institution from 2011 to 2013 were retrospectively reviewed through medical charts. Results Patients showed different characteristics in sex, age, motives, interval between onset and admission day, first occurrence or not, related medical history before admission, usage of west medication, admission days, treatment results, radiological examinations by shoulder pain disease groups. Accordingly, Korean medical treatment such as acupuncture, moxibustion, external treatment, cupping therapy, physiotherapy, herb-medication varied with the characteristics of shoulder pain disease groups. Conclusions Through retrospective medical charts review, characteristics of 410 single institution shoulder pain inpatients showed distinctive features and versatile Korean medicine treatments by disease groups. It is expected that this study would accelerate multi-institutional and large scale characteristic review of shoulder pain patients, which would raise reconsideration and expand boundary of Korean medicine.

Comparative analysis of immediate functional loading and conventional loading about implant survival rate in the completely edentulous: Retrospective study (완전 무치악에서 즉시 부하시와 표준 부하시 임플란트 생존율에 대한 비교 분석: 후향적 연구)

  • Seo, Hyun-Soo;Park, Jun-Woo;Hong, Soon-Min;Lee, Seok-Ryun
    • The Journal of the Korean dental association
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    • v.52 no.12
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    • pp.771-782
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    • 2014
  • Introduction: This study researched the clinical application of immediate functional loading technique about implant survival rate in the completely edentulous and suggested our protocol about surgical & prosthetic procedure. Materials and methods: 32 consecutive patients participated in this study. A total of 242 implants were inserted. In test group, 144 implants were inserted in 19 patients with immediate functional loading with occlusal contact. In control group, 98 implants were inserted in 13 patients and conventional loading was done after 4~6 months. Result: In the immediately loaded implants group, overall cumulative survival rate was 98.6%.

Reasons for primary teeth extraction in children : Retrospective study (유치 발거 원인에 대한 후향적 연구)

  • Kim, Byoung-hwa;Lee, Je-woo;Ra, Ji-young
    • The Journal of the Korean dental association
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    • v.58 no.3
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    • pp.169-179
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    • 2020
  • The purpose of this study was to investigate the principal reasons for primary teeth extractions and the tooth type extracted in children. 1159 patients were selected in this study. Dental records and radiographs were reviewed and age, gender, medical history, type of tooth extracted and the reasons for extraction were collected. The data were statistically analyzed using Chi-square test. Total 2078 primary teeth were extracted. Central incisors(34.1%) were most frequently extracted. Extractions due to physiological mobility(77.5%) were the most frequent followed by caries(13.8%), orthodontic(3.9%), trauma(1.7%). Reason for the extraction was different according to age (p = 0.000), but there was no difference according to gender (p = 0.109). While extractions due to physiological mobility predominated overall, reason for extraction was different according to the tooth type. There was no previous treatment in 54.6% of primary teeth extracted due to caries. Excluded physiological mobility, caries are the most common reason for extraction of primary teeth. The importance of preventive care should be emphasized in order to preserve primary teeth and improve children's oral health.

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