서울대학교병원에서의 Provox 장기간 사용경험

정영호,박준범,원태빈,이승신,모지훈,박석원,성명훈,김광현,Jung, Young-Ho,Park, Jun-Beom,Won, Tae-Bin,Lee, Seung-Shin,Mo, Ji-Hun,Park, Seok-Won,Sung, Myung-Whun,Kim, Kwang-Hyun 대한기관식도과학회 1999 大韓氣管食道科學會誌 Vol.5 No.2

Background and Objectives : Provox, a recently developed tracheoesophageal prosthesis, had been widely used for voice rehabilitation after total laryngectomy for its low resistance and easiness of speech ability. But, long-term use of Provox resulted in many complications and resulted in cessation of Provox as a primary method of vocal rehabilitation. The aim of this study is to report Provox-related problems and the long-term results of Provox voice prosthesis. Materials and Methods : Medical records from patients who had undergone total laryngectomy with Provox insertion at seoul National University Hospital between January 1993 and December 1998 were reviewed retrospectively. Results : 36 patients had used 79 Provox voice prostheses during the observed period. The most common complication causing prosthesis change or removal was leakage and/or aspiration, followed by granulation formation, crusting and/or obstruction, and non-function. Median in situ lifetime of Provox was 274 days and 1-year-in situ rate was 31.0% Among 36 patients, 17 patients had undergone tracheoesophageal shunt closure at the last follow-up visit. 10 patients had complications but got along without further treatments, and 1 patient changed to Blom-Singer voice prosthesis. Only 8 patients experienced no complication, and 5 out of whom had several times of Provox change. Conclusion : long-term use of Provox resulted in discontinuation of its use due to complications in many cases. A better voice prosthesis with lower complication rate and longer in situ lifetime is needed.

RFID를 이용한 국방 비밀관리시스템 발전방안에 관한 연구

정영호,장월수,박목민,박진우,Chung, Young-Ho,Jang, Worl-Su,Park, Mok-Min,Park, Jin-Woo 한국국방경영분석학회 2007 한국국방경영분석학회지 Vol.33 No.2

군에서 비밀을 관리하는 것은 가장 중요한 업무 중 하나이다. 그러나 현재의 비밀관리 방식 하에서는 인력과 시간이 많이 소요되고 있을 뿐 아니라 관리 대상의 범위도 점차 넓어지고 있는 실정이다. 본 연구에서는 한국군 최초로 비밀관리시스템에 RFID를 도입한 한국 국방연구원의 'RFID를 적용한 비밀관리시스템 구축 사업'의 사례를 살펴본다. 이 사례를 통해 보안 업무에 RFID 시스템 도입효과를 보안행정의 효율성, 정확성과 편의성 측면에서 분석하고 이를 바탕으로 야전 부대로 확대 도입 시 예상되는 문제점과 그 개선방향을 제안하고자 한다. The secret management of the Korea Military is one of the most significant operation. But the present method of the Korea Military requires much manpower and time, also the range of an object of administration become wider. In this study, We look into an instance of KIDA's 'The Secret Management System Construction Project' which was the first case to incorporate RFID in secret management system. From this instance, We analyze the effect of RFID on security operation in terms of the efficiency, accuracy and usability of security administration. We also present expected problems and possible solutions when it is extended to the field unit.

갱도 포병 타격 시 무인항공기 운용 효과에 관한 연구

정영호,신기태,장태우,박진우,Jeong, Young-Ho,Shin, Ki-Tae,Chang, Tai-Woo,Park, Jin-Woo 한국시뮬레이션학회 2008 한국시뮬레이션학회 논문지 Vol.17 No.4

The enemy will attempt to destroy our troop's core facilities using various fire supports at the beginning of war. Among these fire supports, artillery is given the most deal of weight and mine artillery is a great threat to our troops because it has a superior predominance on the ability of survival. Our troops are planning to introduce UAV (Unmanned Aerial Vehicle) to overcome these difficulties. A study about hitting mine artillery has been developed inside the military field only. However, these studies had been mostly qualitative analyses, thus having limitations in the aspects of non objectiveness and simplicity. We propose a new method to evaluate about working effect of UAV hitting mine artillery. We studied on hitting mine artillery in a quantitative way using CA (Cellular Automata) simulation. 개전 초, 적군은 다양한 화력지원수단을 이용하여 아군의 핵심시설 파괴를 기도할 것이다. 이러한 화력지원수단 중 포병은 가장 큰 비중을 차지하고 있다. 갱도포병은 생존성 측면에서 아군에 비해 월등한 우세를 점하고 있어 아군에게 큰 위협요소로 판단된다. 아군은 이러한 어려움을 극복하고자 무인항공기 도입을 추진하고 있다. 갱도포병을 타격하는 연구는 지금까지 군내부의 연구를 통해서 발전해 왔으나 대부분의 연구가 정성적인 분석방법으로 이루어져 객관적이지 못하고 다양하지 못한 방법이라는 한계를 지니고 있다. 이에 본 연구에서는 갱도포병을 타격 시 무인항공기 운용 효과에 대한 평가의 새로운 방법을 제안하고자 한다. 세포 자동자(Cellular Automata) 시뮬레이션을 이용한 정량적인 분석방법으로 갱도포병 타격에 관한 연구를 수행했다.

DEVS을 이용한 갱도포병 타격에 관한 연구

정영호,신기태,박진우,Chung, Young-Ho,Shin, Ki-Tae,Park, Jin-Woo 한국시뮬레이션학회 2008 한국시뮬레이션학회 논문지 Vol.17 No.3

개전 초,적군은 다양한 화력지원수단을 이용하여 아군의 핵심시설 파괴를 기도할 것이다. 이러한 화력지원수단 중 포병은 가장 큰 비중을 차지하고 있다. 갱도포병은 생존성 측면에서 아군에 비해 월등한 우세를 점하고 있어 아군에게 큰 위협요소로 판단된다. 갱도포병을 타격하는 연구는 지금까지 군 내부의 연구를 통해서 발전해 왔다. 그러나 이러한 연구의 대부분이 정성적인 분석방법으로 이루어져 객관적이지 못하고 다양하지 못한 방법이라는 한계를 지니고 있다. 이에 본 연구에서는 아군이 생존성의 약점을 극복하기 위하여 갱도포병이 갱도 출구를 개방하고 사격을 개시하기 전에 타격하는데 초점을 맞추고 갱도 포병을 타격하기 위한 정량적인 분석 방법으로 DEVS를 이용한 시뮬레이션 연구를 수행하고자 한다. The enemy will attempt to destroy our troop's core facilities using various fire supports at the beginning of war. Among these fire supports, artillery is given a most deal of weight and mine artillery is a great threat to our troops because it has a superior predominance on the ability of survival. A study about hitting mine artillery has been developed inside the military field only. However, these studies had been mostly qualitative analyses, thus having limitations in the aspects of nonobjectiveness and simplicity. Current study attempts to develop theory on hitting mine artillery beginning from mine opening until the target got hit, based on the assumption that one side which has inferior force will attack first. We studied on hitting mine artillery in a quantitative way using DEVS method.

중금속원소(重金屬元素)에 의(依)한 농작물(農作物) 피해(被害) 및 그 대책(對策)에 관(關)한 연구(硏究) -크롬(Cr)에 의(依)한 배추의 피해(被害) 및 대책(對策)-

정영호,Jeong, Young-Ho 한국토양비료학회 1978 한국토양비료학회지 Vol.10 No.4

중금속원소중(重金屬元素中) 크롬(Cr)에 의(依)한 배추의 피해정도(被害程度) 및 그 피해대책(被害對策)으로 석회시용(石灰施用) 및 석회(石灰)와 퇴비(堆肥)의 혼합시용(混合施用)에 의(依)한 효과를 구명(究明)하기 위하여 pot시험(試驗)한 결과(結果). 1. 크롬 첨가(添加)에 따른 배추의 지상부(地上部) (생총중(生總重)) 수량(收量)은 첨가(添加)된 크롬의 농도(濃渡)가 증가(增加)함에 따라 비례(比例)하여 현저(顯著)히 감소(減少)하는 경향(傾向)을 보였다. 2. 크롬을 첨가(添加)한 토양(土壤)에 석회시용(石灰施用)은 유의적(有意的)인 증수효과를 보였으며 퇴비(堆肥)와 시용(施用)은 더욱 현저(顯著)한 효과를 보였다. 3. 크롬 첨가(添加) 토양(土壤)에 석회시용(石灰施用) 및 석회(石灰)+퇴비(堆肥)의 시용(施用)에 따른 식물체중(植物體中) 크롬함량(含量) 및 토양중(土壤中) N/2-HCl 가용(可溶) 크롬함량(含量)은 공(共)히 현저(顯著)한 감소(減少)를 보였다. 4. 토양중(土壤中) N/2-HCl 가용(可溶) 크롬함량(含量) 및 식물체중(植物體中) 크롬함량(含量)과 배추의 지하부(地下部) 수량(收量)과 5%의 유의적(有意的) 부(負)의 상관관계(相關關係)를 보았다. 5. 크롬의 첨가(添加)는 식물체중(植物體中) 질소(窒素), 인산(燐酸), 석회(石灰) 및 고토(苦土)의 함량(含量)을 감소(減少)시키는 경향(傾向)을 보였다. A study was carried out to examine the effects of chromium added in soil on yield of Chinese cabbage and the responses of lime and lime with compost applied on the plant growth as a control measures. The results are summarized as follows: 1. The yield of fresh leaf weight of Chinese cabbage was apparently decreased in proportion to the increased amount of chromium added. 2. Lime application on the chromium added soil were significantly increased the yield and the responses were more effective with the application of lime and compost. 3. Percentage of chromium in plant and N/2-HCI soluble chromium was decreased with the application of Lime and lime with compost. 4. Significant correlations were observed on total chromium contents in soil with fresh leaf weight of Chinese cabbage. 5. Nitrogen, phosphorus, calcium and magnesium contents in plant were decreased by added rate of chromium.

한국 고유식물의 종속지 (種屬誌) 10. 괭이눈속 식물의 분류와 종간유연관계 (種間類緣關系)

정영호,김영동 ( Yung Ho Chung,Young Dong Kim ) 한국환경생물학회 1988 환경생물 : 환경생물학회지 Vol.6 No.2

This research was conducted to discuss the taxonomic problems in the genus Chrysosplenium in Korea. Materials used in this research were collected from Cheju island, Mt. Odae, and Mt. Cheonma, etc. and cultured in the greenhouse at Seoul National University. Specimens deposited at several university herbariums were also used. The external morphologies of leaf, flower, fruit, pollen, and seed were investigated with the stereo microscopy and scanning electron microscopy. As the results, C. Grayanum and C. macrostemon were proved as taxa not ditributed in this country. The C. trachyspermum and C. barbatum were synonymous of the C. pseudo-Fauriei, C. pilosum var. fulvum respectively. The C. pilosum var. valdepilosum was recognized and its new Korean name was proposed. The types of theeth, flower, fruit and seed were considered as the diagnostic characters in this taxon. Conclusively, the Korean Chrysosplenium could be rearranged as 7 species, 1 variety: C. flaviflorum, C. pilosum var. valdepilosum, C. pilosum var. fulvum, C. pseudo-Fauriei, C. ramosum, C. alternifolium var. sibiricum, C. japonicum, and C. flagelliferum.

NaOCl 처리 농도 및 시간에 따른 희귀식물 자란(Bletilla striata Rchb.f.)의 종자 발아 및 활력 연구

정영호,김진기,이하얀,송세규,배기화,Jung, Young Ho,Kim, Jinki,Lee, Hayan,Song, Se-kyu,Bae, Kee Hwa 한국식물생명공학회 2020 식물생명공학회지 Vol.47 No.1

This study was conducted to examine the vitality of Bletilla striata Rchb.f. seed treated with different concentrations sodium hypochlorite (NaOCl) for different lengths of time. This study also examined the effect of NaOCl treatment times and concentrations on swelling formation and seed germination of B. striata seed. The non-treated B. striata seed had the highest survival rate (82.7%) Treatment with more than 1.5% NaOCl negatively affected the seed survival rate, as compared to concentrations of less than 1%. The swelling formation and seed germination percentages were highest (90.1% and 94.1%, respectively) when seeds were treated with 0.5% NaOCl for 20 min. These results can be used as important basic data for the growth and restoration of B. striata and further suggest the possibility of individual restoration in habitats.

응용논문 : 금형보정을 이용한 PCB 품질향상에 관한 실험

정영호,권이장 ( Young Ho Chun,Lee Jang Kwon ) 한국품질경영학회 1997 품질경영학회지 Vol.25 No.1

두경부암 치료에 따라 발생한 흡인 환자에 대한 다각적 재활운동 치료

정영호,진영주,Jung, Young Ho,Jin, Young Ju 대한후두음성언어의학회 2018 대한후두음성언어의학회지 Vol.29 No.1

Patients who have the head and neck cancer are usually treated by surgery, radiation therapy, chemotherapy, or combinations of them. These treatments can induce variable degree of aspiration with dysphagia. The type and severity of aspiration depends on the size and location of the original tumor, the structures involved, and the treatment modality used for treatment. The management of aspiration after the head and neck cancer's treatment begins with an accurate evaluation for the cause and mechanism of aspiration through modified barium swallow (MBS) and fiberoptic endoscopic examination of swallowing (FEES). Then, the clinician can use postures, maneuvers, and exercises to treat the swallow disorder and to help the patient achieve optimal function. To achieve optimal swallowing without aspiration, multidimensional rehabilitation by various medical personnel is definitely necessary.

스마트TV 기술

정영호,안충현,홍진우,Jeong, Young Ho,Ahn, Chung Hyun,Hong, Jin Woo 한국정보통신학회 2010 한국정보통신학회지 Vol.11 No.2