• 대한상한금궤의학회지
• /
• 제10권1호
• /
• pp.115-124
• /
• 2018

Objective : The purpose of this paper is to report the improvements of a patient who has suffered from aftereffects following stroke such as dysgraphia and articulation disorder, which is treated by herbal medication based on Shanghanlun disease pattern identification diagnostic system. Methods : According to 'Disease Pattern Identification Diagnostic System based on Shanghanlun Provisions', the patient was diagnosed as Taeyang-byung Gyeolhyung and number 138 provision, and was administered Sohamhyung-tang for 90 days. We recorded the progress of improvements based on the patient's statement and documented the patient's writing Results : The patient can write the letters such as U, 2, ㄹ,ㅇ more clearly and become confident on both writing and speaking. Conclusions : This case shows the effects of Sohamhyung-tang on aftereffects following stroke such as dysgraphia and articulation disorder. It was induced according to the 'Disease Pattern Identification Diagnostic System based on Shanghanlun Provisions' so that it suggest a potential interpretation, which is different with it of the text books Herbal Formula Science and Sanghallonjeonghae, on the provision no. 138. Also the usage of Sohamhyung-tang in this case may support the way far from the diagnosis of oriental neurological medicine, which explain the pathology of stroke as fire-heat(火熱), dampness-phlegm(濕痰), static blood(瘀血) and dual deficiency of qi and blood(氣血兩虛).

• 한국통신학회논문지
• /
• 제39C권12호
• /
• pp.1307-1313
• /
• 2014

본 논문에서는 IR-UWB 통신 시스템의 테이퍼드 슬롯 안테나를 통해 지상 건물의 실내위치인식이 아닌 해양선박 실내에서의 위치 인식에 적합한 안테나를 제안하였다. 제안한 테이퍼드 슬롯 안테나는 Ansys사의 HFSS를 사용하여 전산모의 하였으며, 주파수 영역에서의 반사손실 및 정재파비, 방사패턴 등을 분석하였다. 분석한 결과 2.36 GHz ~ 5.51 GHz 대역에서 -10 dB 반사손실 및 $VSWR{\leq}2$를 만족하였으며, 방사패턴은 모든 대역에 걸쳐 특정한 방향으로 전파에 대한 감도가 높아지는 end-fire 특성을 보였다.

• 전자공학회논문지SC
• /
• 제42권3호
• /
• pp.17-24
• /
• 2005

본 논문에서는 PDP 상판의 패턴결함을 검출하는 영상처리 알고리즘을 제안하고, 이를 실시간으로 처리하기 위한 영상처리 하드웨어의 구현을 나타낸다. 제안된 영상처리 알고리즘은 참조영상의 패턴간격을 이용하여 결함영상을 추출하는 알고리즘이며, 영상처리 시스템은 실시간 구조로 설계된 고속 영상처리 하드웨어와 여러 개의 영상처리 하드웨어 제어를 위한 데이터관리 및 시스템제어 하드웨어에로 나누어 구현하였다. 또한, 본 논문에서는 구현한 영상처리 시스템을 이용하여 실제 PDP 상판의 결함을 검사하는 실험 환경을 구성하여 패턴의 결함을 검사하는 실험을 수행하였다. 그 결과 제안한 알고리즘과 구현한 하드웨어의 우수성을 입증 하였다.

• 전기전자학회논문지
• /
• 제24권2호
• /
• pp.536-542
• /
• 2020

본 논문에서는 광대역 지향성 방사패턴을 가지는 자연에서 영감을 얻은 새싹 모양 안테나를 제안한다. 모션감지 센서 응용을 위해 넓은 빔폭을 가지는 새싹 모양의 기울어진 방사체를 설계하였다. 확장된 잘려진 접지면을 반사기로 작용하도록 하여 지향성 방사패턴을 가지도록 하였다. 평형 방사체를 급전하기 위하여 우수한 진폭 및 위상 평형도를 가지는 광대역 발룬을 활용하였다. 제안된 안테나는 8.5에서 14.5 GHz의 넓은 주파수 대역폭과 넓은 빔폭을 가졌으며, 방사 효율은 90% 정도이었다. 측정된 이득은 4에서 5dBi이며, 전후방비는 10~20dB이었다. 제안된 안테나는 광대역 넓은 빔폭과 지향성 방사패턴을 요구하는 이미징 센서, 위상 배열 시스템 및 레이더 등에 활용될 수 있음을 보였다.

• 한국안전학회지
• /
• 제25권6호
• /
• pp.86-91
• /
• 2010

The purpose of this study is to analyze the damage patterns and metal structure of 3 phase mold transformers collected from places where accidents have occurred. Compared to an oil-immersed transformer, a mold transformer has the advantage of requiring a smaller installation area and can be kept clean, while its disadvantages include the fact that abnormal symptoms of an accident are difficult to discover and its repair is impossible. The capacity of the mold transformers collected from places where accidents have occurred was 200kVA with primary voltages being F23,900V, R22,900V, 21,900V, 20,900V, 19,900V, etc., as well as secondary voltages being 380V, 220V, etc. It was found from the analysis on the diffusion of combustion in the damaged mold transformers that fire occurred first inside the U-phase primary winding and that carbonization and heat were diffused to V-phase and W-phase in V-pattern. In addition, from the analysis on the cross-sectional structure of the metal of the melted high voltage winding using a metallurgical microscope, it was found that the boundary surface, voids, and columnar structure were formed when an interlayer short-circuit had occurred Therefore, even though it is not possible to find the cause for the occurrence of an interlayer short-circuit at the inner side of the primary winding, it is thought that, due to the thermal energy generated when the short-circuit occurred, the heat source was diffused to the upper side and outside, causing a secondary accident.

• 한국전기전자재료학회논문지
• /
• 제37권1호
• /
• pp.79-87
• /
• 2024

This paper is a study on the optimal microdroplet generation conditions in indirect charging electrostatic spraying. Unlike the direct charging method, which applies power to the nozzle, the indirect charging method applies power to the discharge electrode between the nozzle and the collection electrode. Therefore, an electrically simplified system can be obtained by minimizing the insulation part a stable spray pattern can be obtained with a wide spray angle, and a stable spray pattern can be obtained with a wide spray angle. To conduct the study, an indirect charging type electrostatic spray visualization system was constructed and the static characteristics of the microdroplets were analyzed through image processing of the spray shape of the microdroplets. The total number of microdroplets and the number of microdroplets per power consumption are confirmed according to the changes in the distance between the discharge electrode and the collection electrode, the flow rate, and the applied voltage, which affect the generation of microdroplets, and using this, the optimal generation conditions are derived and the corresponding microdroplet size distribution was analyzed. As a result of the experiment, it was confirmed that the optimal generation condition was at a flow rate of 15 to 20 mL/min and a voltage of -22.5 to -25 kV in terms of the number of microdroplets, and at a flow rate of 15 to 20 mL/min and a voltage of -20 kV in terms of energy consumption efficiency.

• 한국환경생태학회지
• /
• 제21권5호
• /
• pp.400-414
• /
• 2007

본 연구는 산불피해지역 식생구조 분석을 통한 생태적 식생복원 모델을 제시하고자 2000년도에 산불이 발생하여 사방사업차원에서 잣나무, 자작나무 등을 조림한 영인산 자락 일대를 대상으로 하였다. 현존식생 조사대상지로 선정한 $1,152,404.3m^2$ 중 산불지역은 69.2%이었고 이중 관목숲이 24.67%로 가장 넓었다. 현존식생유형과 산불피해상태를 고려해 설정한 27개 조사구(단위면적 $100m^2$)를 분석한 결과 10개 군락으로 구분되었다. 산불지역은 관목층 식생이 우점하였고 잣나무군락, 굴참나무군락, 곰솔군락, 졸참나무군락, 자작나무군락으로 나뉘어졌고 비산불지역은 소나무군락 상수리나무군락, 졸참나무군락, 신갈나무-졸참나무군락, 자작나무군락으로 구분되었다. 종다양도는 산불지역이 $0.3679{\sim}0.5907$로 비산불지역 $0.5728{\sim}0.8865$보다 낮았다. 출현종수는 산불지역이 $5{\sim}8$종으로 비산불지역 $8{\sim}12$종보다 작았으며 개체수는 산불지역 ($156{\sim}465$개체)이 비산불지역($61{\sim}227$개체)보다 많았다. $100m^2$당 층위별 생육밀도 분석결과 교목층에서는 신갈나무가 $1{\sim}8$주, 졸참나무가 $3{\sim}5$주, 아교목층에서는 졸참나무 $2{\sim}4$주, 신갈나무 1주 등이 출현하였다. 토양의 경우 산불지역 pH가 5.45로 비산불지역 pH 5.25보다 높았다. 식생복원모델은 천이 중간단계에 해당하는 신갈나무-졸참나무 중경목군락을 모델로 설정하여 식재종과 식재밀도 그리고 식재모델을 제시하였다.

• 한국재난정보학회 논문집
• /
• 제15권4호
• /
• pp.469-478
• /
• 2019

연구목적: 본 연구는 산불에 의한 시설물피해 특성연구를 위하여 2018년 3월 28일 강원도 고성군 간성읍 탑동리 산16(야산)에서 발생한 산불(피해면적 40ha)을 대상으로 시설물피해 현황을 조사 하였다. 고성산불은 산림 및 농작물 피해는 물론이고, 사람이 거주하는 주택, 공공시설, 창고, 군사시설 등 17건의 시설물에 피해를 주었다. 본 연구의 목적은 이 피해 시설물들의 세부적인 피해원인을 분석하여, 산림인접 시설물들에 대한 산불피해 방지 방안을 제시하기 위하여 수행하였다. 연구방법: 고성산불발생시 기상을 분석하기 위해 산불발생과 진화완료시(2018.3.28 06:19 ~ 22:00)의 기상상황(기온, 풍속, 풍향, 습도)을 1분단위로 분석하였고, 시설물 피해 사례조사를 위해 고성산불로 인해 발생한 17건의 시설물 중 군사시설 등을 제외한 10건의 피해 시설물 주변의 경사도, 사면향, 지세특성, 산림과의 이격거리, 주요수종, 수관화발생 유무, 주택방위, 주택재질 등 9개 항목에 대한 현장조사를 실시하여 산불피해특성을 분석하였다. 연구결과:고성산불 발생과 진화완료시(2018.3.28 06:19 ~ 22:00)의 기상상황(간성 517AWS)은 기온 및 습도가 고온 건조한 상태였으며, 풍속은 평균 4.1m/s, 최대 11.6m/s의 강한 바람이 불었다. 주풍향은 W(225~315°)방향이었으며, 산불의 확산 방향과 일치하였다. 또한 산불피해 시설물들은 급경사지와 능선의 산정부에 위치하였고, 시설물주변 산림은 수관화 발생지역의 소나무 밀임분 지역이었다. 산림과 시설물과의 이격거리는 평균 13.5m이었으며, 시설물의 재질이 불에 강한 콘크리트였을 경우 경미한 피해를 입었지만, 샌드위치판넬 등 산불에 약한 재질은 모두 전소한 것으로 나타났다. 결론: 본 연구를 통해 얻은 결과인 주택주변의 숲 가꾸기 실시와 이격거리 확보, 시설물들의 불연재 재질로의 개선 등을 통해 산림인접 시설물들에 대한 산불방지 대책수립에 기여 할 것으로 기대된다.

• 대한한방내과학회지
• /
• 제27권1호
• /
• pp.237-252
• /
• 2006

Objectives : This study was done to investigate clinical frequency and correlation among the indicators of dampness-phlegm pattern identification settled by tentative Korean Standard Differentiation of the Symptoms and Signs for Stroke. Methods : The subjects were 147 hospitalized patients with stroke, and a list of registry was made for each of them. Among the five types of pattern identification, fire-heat, dampness-phlegm, blood-stasis and deficiency of Qi and of Yin, those that have shown a high frequency in dampness-phlegm type were categorized as the dampness-phlegm pattern group. Frequency of dampness-phlegm indicators was compared with those from the non-dampness-phlegm pattern group. Correlations among dampness-phlegm indicators were also studied. Results : 1. Dampness-phlegm pattern group included 26 patients out of 147. 2. Among the indicators of dampness-phlegm pattern. those, in order of highest frequency, were 'tiredness or sluggishness', 'white Coated tongue' and 'sputum'. 3. In comparing dampness-phlegm pattern group with non-dampness-phlegml group, the indicators such as 'lightheadedness', 'nigrescence', 'sputum', 'dermatic dysaesthesia' showed significantly high frequency. 4. Among the indicators, 'sputum' and 'tiredness or sluggishness', 'sputum' and 'yellow coated tongue', and 'white coated tongue' and 'yellow coated tongue' showed significant correlation. 5. In investigation of the correlation of scale in symptoms, various results such as positive correlation and negative correlation were obtained. Conclusion : In this study, more sensitive indicators of dampness-phlegm pattern identification were found. Based on these results, it is suggested that a more practical Korean Standard Differentiation of the Symptoms and Signs of Stroke would be established through continuous clinical studies by giving weight on each specific type of pattern identification.

• 동의신경정신과학회지
• /
• 제30권1호
• /
• pp.1-11
• /
• 2019

Objectives: Attention-Deficit/Hyperactivity Disorder (ADHD) is characterized by a persistent pattern of inattention and/or hyperactivity impulsivity that interferes with function or development in children. In traditional Korean medicine (TKM) and traditional Chinese medicine (TCM), ADHD is classified by several patterns based on symptoms and signs. However, currently, there is no objective diagnostic tool for ADHD in traditional medicine. The objective of this study was to develop the Pattern Identification Questionnaire for ADHD (parents-survey style) to be used in Korean medicine, through a literature review and consultation with groups of experts. Methods: The types of pattern identifications of ADHD mentioned in 13 pieces of Korean and Chinese literatures and their symptoms and signs were analyzed. The advisory committee (15 Neuropsychiatrist and 11 Pediatrist in Korean Medicine) assessed the appropriateness of the literature selection and the types of pattern identification selection and their symptoms and signs, and weighed the significance of the symptoms and signs. The Pattern Identification Questionnaire for ADHD was developed using the calculated weights by evaluated significance. The translation of symptoms and signs to the Korean language was achieved through consultation with expert translators. Results: 1. Four pattern identification types and their symptoms and signs were selected according to frequency of appearance in the Korean and Chinese literatures, and were reviewed by the advisory committee: Kidney yin deficiency and liver yang ascendant hyperactivity (腎虛肝亢), Dual deficiencies in the heart and spleen (心脾兩虛), Phlegm-fire harassing the heart (痰火擾心), and Spleen weakness and liver energy preponderance (脾虛肝旺). 2. The weights of all the symptoms and signs in the four patterns were calculated using the means and standard deviations of the symptoms and signs' importance that were obtained from specialists' significance weighting. 3. The Pattern Identification Questionnaire for ADHD (parents-survey style) in Korean medicine composed of 38 questions was suggested. Conclusions: Using a review of the literature and expert advice, Pattern Identification Questionnaire for ADHD (parents-survey style) in Korean medicine was developed. Further clinical study is required to develop a final version of the questionnaire through the evaluation of reliability and validity.