식욕부진이 있는 4세 이하 영.유아의 식이 습관에 대한 조사

윤영훈,박영봉,양은석,노영일,김은영,문경래,이철갑,Yoon, Young-Hun,Park, Yeung-Bong,Yang, Eun-Seok,Rho, Young-Ill,Kim, Eun-Young,Moon, Kyung-Rye,Lee, Chul-Gab 대한소아소화기영양학회 2003 Pediatric gastroenterology, hepatology & nutrition Vol.6 No.2

목 적: 성장 장애의 비기질적 원인인 식욕부진의 원인으로 부적절한 양육, 부적절한 칼로리의 섭취, 부적절한 식이 습관 등 환경적 요인과 심리적 요인이 강조되고 있다. 이에 저자들은 영양 지도 및 평가의 기초 자료로 삼고자 성장 장애의 원인이 될 수 있는 식욕 부진이 있는 4세 이하의 영 유아에서의 식이 습관을 조사하였다. 방 법: 2002년 5월부터 2002년 8월까지 조선대학교 부속병원과 광주광역시와 전라남도의 4개의 개인 병원을 방문한 504명의 아이들의 보호자를 대상으로 하였으며 조사방법은 본 교실에서 제작한 설문지를 보호자가 기재하도록 하였다. 결과의 분석은 식욕 부진이 있는 아이 138명과 식욕 부진이 없는 아이 366명의 체중 증가의 정도, 신생아 시기의 수유 방법과 수유량, 수유시기, 이유식을 먹이는 방법과 시기 등을 비교 분석하였다. 결 과: 1) 대상아 중 식욕부진이 있는 아이는 138명(27.4%)이었고, 식욕 부진이 없는 아이는 366명(72.6%)이었다. 식욕 부진이 있는 아이 중에서 남아는 전체의 14.7%이었고, 여아는 12.7%이었으며, 식욕부진이 없는 경우는 남아가 전체의 39.1%이었고, 여아는 33.5%이었다. 2) 식욕부진이 있는 아이의 체중 분포는 3 백분위수 미만이 8.7%, 3~10 백분위수가 15.9%, 10~25 백분위수가 20.3%, 25~50 백분위수가 23.3%, 50~75 백분위수가 18.8%, 75~90 백분위수가 5.8%, 90~97 백분위수 5.1%, 97 백분위수 이상이 2.2%이었다. 3) 모유수유율은 식욕 부진이 있는 아이는 18.8%, 식욕 부진이 없는 아이는 20.3%이다. 4) 6개월 이내의 짧은 모유수유기간은 식욕 부진이 있는 아이는 70.5%, 식욕 부진이 없는 아이는 58.5%이다. 5) 이유식의 시작 시기는 식욕 부진이 있는 아이의 경우에 2~4개월 때 15.9%, 4~6개월 때 32.7%, 6~8개월 때 38.1%, 1세 이상일 때가 18.8%로 식욕 부진이 없는 아이의 경우 2~4개월 때의 5.6%와 비교하면 이유식을 4개월 이전에 너무 빨리 시작한 경우가 15.9%로 많은 수를 차지하였다. 6) 이유식을 먹이는 방법은 식욕 부진이 있는 경우는 80.4%에서 식욕 부진이 없는 경우도 66.6%에서 젖병을 이용하는 잘못된 이유 방법을 하고 있었다. 7) 식사시에 항상 다른 일을 하는 경우는 식욕 부진이 있는 경우는 17.3%, 식욕 부진이 없는 경우는 10.7%이었으며, 항상 식사에만 집중하는 경우는 식욕 부진이 있는 경우는 2%, 식욕 부진이 없는 경우는 12.7%이었다. 8) 식욕 부진으로 상담을 받았던 곳은 한방병원 68%, 소아과 20%, 내과 3%, 약국이 8% 순이었다. 9) 식욕 부진으로 복용한 약물의 종류는 한약이 77%, 영양제가 15%, 비타민제제는 8% 순이었다. 결 론: 영 유아의 식욕부진은 낮은 모유 수유율과 짧은 기간, 잘못된 이유 시기 및 방법, 식사시의 집중도, 편식의 정도와 관련이 있다. 또한 식욕 부진아의 대부분이 소아과의원 이외의 다른 기관에서 진료하고 있어 적극적인 대응책 강구와 올바른 영 유아의 영양 방법에 대한 교육이 필요하다. Purpose: To find out the differences in eating habits between poor feeding and non-poor feeding children. Methods: We performed questionnaires on 504 children under four years of age who visited hospitals in Gwangju city and JaollaNamdo from May to August, 2002. Results: 138 (27.4%) children were included in poor feeding group, and 366 (72.%) children were in non-poor feeding group. Breast feeding rate was 18.8% in the poor feeding group and 20.3% in the non-poor feeding group. Duration of breast feeding for less than six months were noted in 70.5% of poor feeding group, and 58.5% of non-poor feeding group. The time at starting solid food in the poor feeding group was as follows; 15.9% of infants started on solid food when they were 2~4 months old, 32.7% during 4~6 months, 38.1% during 6~8 months and 18.8% over one year of age. Solid food was given in wrongly manners in both groups by nursing bottles, including 80.4% in poor feeding group and 66.6% in non-poor feeding group. Conclusion: This study demonstrated close relationships among poor feeding children under four years of age with history of low rate and short duration of breast feeding, inappropriate time to start on solid food, less interest in food during mealtime, and unbalanced diet. Pediatricians should make an effort to play an important role in nutritional education and treatment in children.

각종백혈구백분비계산법(各種白血球百分比計算法)에 관(關)한 고찰(考察)

윤영훈,Yoon, Young Hun 대한수의학회 1961 大韓獸醫學會誌 Vol.1 No.1

각종백혈구(各種白血球) 백분비계산방법(百分比計算方法)에는 거이 백종(百種)에 가까울 정도(程度)인데 학자(學者)에 따라서 각각상이(各各相異)하여 각각상이(各各相異)한 백분비(百分比)가 산정(算定)되어 어느방법(方法)을 택(擇)하여야 할것인가 곤란(困難)하다. 여기에서 가장 널리 사용(使用)하고 있는 5종방법(種方法)과 필자(筆者)가 고안(考案)한 13종방법(種方法)을 적용(適用)하여 각혈액도말표본(各血液塗抹標本)에 있는 백혈구(白血球) 실측수(實測數)와 비교검토(比較檢討)한 결과(結果) 도말표본장축(塗抹標本長軸)의 중안선부(中央線部)와 이 중안선부(中央線部)의 양변연(兩邊緣)과의 양(兩) 중안선부(中央線部) 즉(卽) 삼평행선연(三平行線緣)을 종단부(終端部)에서 초단부(初端部)까지 산정(算定)하는 방법(方法)이 비교적(比較的) 이상적(理想的) 방법(方法)이었다. 끝으로 시종강력(始終强力)히 지도편달(指導鞭撻)하여주신 김용필교수(金容珌敎授)에 심심(甚深)한 사의(謝意)를 표(表)하며 선생님(先生任)의 의도(意圖)를 백분발휘(百分發揮)치 못함에 미안(未安)한 마음 금(禁)치 못하며 선배제현(先輩諸賢)의 냉철(冷徹)한 비판(批判)과 지도편달(指導鞭撻)을 바라는바입니다. Inasmuch as a great variety of methods for the leukocyte differential counting have been described, it may be expected that actual counts obtained considerably vary according with the particular methods applied to the enumeration of differentiated leukocyes. An attempt, therefore, was undertaken to compare the values measured by five authentic methods commonly in use with those obtained by thirteen methods devised by the author. The results seemed to indicate that relatively reliable method is to count, end to end, all leucocytes on fields looted on the central horizontal axis of the film and two adjacent lines parallel to the central line and quartering the film.

구토를 주소로 내원한 영아에서 발견된 Chilaiditi's Syndrome 1례

윤영훈,노영일,문경래,Yoon, Young-Hun,Rho, Young-Il,Moon, Kyung-Rye 대한소아소화기영양학회 2002 Pediatric gastroenterology, hepatology & nutrition Vol.5 No.1

저자들은 지속적인 구토를 동반한 1세 3개월된 남아에서 단순 촬영과 소장 대장 조영술에서 Chilaiditi's syndrome을 보이는 환아에서 수액요법과 대증요법으로 호전된 예를 경험하였기에 보고하는 바이다. Chilaiditi's sign is a radiographic term used when the hepatic flexure of colon is seen interposed between the liver and right hemidiaphragm. Mostly asymptomatic, Chilaiditi's syndrome can present with abdominal pain, nausea, vomiting, anorexia, abdominal distension, tender hepatomegaly and change in bowel habits. Uncommon in childhood, the incidence seems to increase with age. We have experienced a case of Chilaiditi's syndrome presenting with vomiting in a 15-month-old boy. The patient recovered uneventfully.

대학 내 커피전문점에 대한 소비자의 요구도와 만족도

윤영훈(Young-Hun Yoon),김인호(In-Ho Kim),유현정(Hyun Jung Yoo) 충북대학교 생활과학연구소 2012 생활과학연구논총 Vol.16 No.1

This study examined how much consumers were satisfied and what their needs were for a coffee shop located on a university campus. Also, it was examined what factors were influencing the satisfaction of a coffee shop located on a university campus. The questionnaire survey method was conducted and 194 university students who had experiences visiting a coffee shop located on university campus in Cheongju, were selected. For the statistical analysis, descriptive analysis, factor analysis, t-test and ANOVA were used by the SPSS 14.0 program. The findings were as following: First, consumers’ overall satisfaction with a coffee shop located on a university campus was near mid-point. Second, the most important factor for consumers’ satisfaction of a coffee shop on university campus were location. And, price, taste, and various product options followed. Third, consumers’ needs for a coffee shop on a university campus were composed of three factors: interior circumstance, service, and attendant circumstances. The most important out of these three factors was the service factor (m=3.89). Fourth, consumers’ satisfaction for the coffee shop on a university campus was composed of four factors: interior circumstance, service, ease of access, and brand loyalty. Furthermore, ease of access was found to be the most important factor (m=3.98).

충돌 회피와 실시간으로 변하는 경로를 추종하는 무인비행기 제어 알고리즘

윤영훈(Young-Hun Yun),박진배(Jin-Bae Park),최윤호(Yoon-Ho Choi) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7

본 논문에서는 무인 비행기의 충돌 회피를 위해 역장(force field) 기반 방법을 이용한 제어 방법을 제안한다. 제안된 방법에서는 장애물이 가까이에 없는 경우, 추종 경로 발생 모델의 각속도와 선속도를 추정하여 무인 비행기의 롤링 각(roll angle)을 구하여 이를 통해 요잉 각(yaw angle)을 제어한다. 무인비행기에 근접한 장애물이 감지되면 포텐셜 함수(Potential Function)를 이용하여 충돌 회피를 하도록 하는 요잉 각을 구한다. 이러한 시스템을 리아프노프 안정도 판별기법을 이용해 안정도를 증명한다. 마지막으로, 알고리즘 성능을 모의실험을 통해 검증하고자 한다.

지속적인 쌀죽 섭취에 의한 각기병 1례

양은석,윤영훈,노영일,문경래,Yang, Eun Seok,Yoon, Young Hun,Rho, Young Il,Moon, Kyung Rye 대한소아소화기영양학회 2004 Pediatric gastroenterology, hepatology & nutrition Vol.7 No.2

저자들은 1년 6개월간 지속적인 쌀죽의 섭취이후에 발등부터 시작하여, 전신적인 부종과 무관심, 걷지 못하는 증상을 주소로 입원한 환아가 티아민 투여 이후에 증상의 회복을 보인 beriberi 1례를 치험 하였기에 보고하는 바이다. Beriberi, which is caused by thiamin deficiency, is a rare disease in recent years. But it has been described in the Eastern literature as far back as the 17th century. Early symptoms are fatigue, apathy, irritability, drowsiness, anorexia, nausea, vomiting and abdominal pain. Signs and symptoms of progression are peripheral neuritis, paresthesia, decreased tendon reflex and congestive heart failure. Thiamin deficiency remains as an important health care issue in many world population, specially in AIDS, pregnancy women and TPN associated patients. The best diagnostic test is assessing clinical response to administration of thiamin. We have experienced a case of Beriberi caused by continuous rice-soup feeding during one and half years in a 7-year-old boy.

Survey on Public Responses to Odor Produced at Jangrim-Sinpyoeng Municipal and Industrial Wastewater Treatment Plant in Busan

손현근,윤영훈,Son, Hyun-Keun,Sivakumar, Subpiramaniyam,Yoon, Young-Hun Korean Society of Environmental Health 2011 한국환경보건학회지 Vol.37 No.3

Objective: Emissions of volatile organic compounds (VOCs) from municipal wastewater treatment plants and industrial wastewater are often overlooked as sources of exposure to toxic chemicals. VOCs from such sources evaporate readily into the air and may have significantly adverse impacts on public health. The present study aimed to establish the concentration of VOCs released from Jangrim-sinpyoeng Municipal and Industrial Wastewater Treatment plant (JWTP) in Busan, South Korea and assess the causes of the odor/stench in the surrounding residential facilities. Stench intensity, frequency and release time, and wind direction were also monitored. Methods: Onsite data were collected on a daily basis from a laboratory located on the JWTP premises through a period spanning 2006 to 2010. A second set of data was obtained in 2006 by conducting a questionnaire survey with 210 respondents living near JWTP. The experimental and survey data were analysed statistically using the SPSS package. Results: The survey results showed that people residing around JWTP strongly perceive a stench from the plant. The intensity of the stench was influenced significantly by wind direction and the location of the apartments facing the JWTP. Public participation formed a significant step in determining the quality of the study environment. Conclusion: Onsite data and survey data obtained in 2006 indicate that the nature of the odor experienced by residents is due to the intensity of total VOCs released by JWTP. However, additional research is needed to determine the effects of the VOC pollution on public health and quality of life.

박물관내 실내공기오염물질의 분포 특성 실태조사

김윤신,노영만,윤영훈,이철민,김기연,김종철,전형진,심인숙,Kim, Yoon-shin,Roh, Young-man,Yoon, Young-hun,Lee, Cheol-min,Kim, Ki-yeon,Kim, Jong-cheol,Jeon, Hyoung-jin,Sim, In-suk 국립문화재연구소 2007 保存科學硏究 Vol.28 No.-

The goal of this study was to provide basic data for arrangement of management in museum environment. We investigated characteristics of distribution on indoor air pollutants at exhibition halls and storages in museums between July and August, 2007. The monitoring carried out at three cultural sites, Pusan, Daejeon and Kyungjoo which is possessed their own exhibition hall and storage in Museums. We adopt the several pollutants for this survey such as $PM_{10}$, $PM_{2.5}$ $CO_2$, Formaldehyde, TBC, CO, $NO_2$, Rn, VOCs, $O_3$ and followed the standard method of Ministry of Environment, Korea for sampling and analysis, respectively. The results of this survey revealed that average concentration of $PM_{10}$ and $PM_{2.5}$ in storages were $117.3{\mu}g/m^3$ and $92.6{\mu}g/m^3$, respectively. The average concentration in storages of gases pollutants and microorganism such as $CO_2$, Formaldehyde, $NO_2$, Rn, TVOC, $O_3$, and TBC showed as: 788.8ppm, $30.7{\mu}g/m^3$, 0.4ppm, 6.4ppb, $1.3pCi/{\ell}$, $1,374.9{\mu}g/m^3$, 2.4ppb, and $119.4cfu/m^3$, respectively. In addition, average concentration of $PM_{10}$ and $PM_{2.5}$ in exhibition halls were $49.5{\mu}g/m^3$ and $56.1{\mu}g/m^3$, respectively. The average concentration in exhibition halls of gases pollutants and microorganism such as $CO_2$, Formaldehyde, $NO_2$, Rn, TVOC, $O_3$, and TBC showed as: 475.2ppm, $94.1{\mu}g/m^3$, 0.3ppm, 12.4ppb, $0.3pCi/{\ell}$, $1,179.1{\mu}g/m^3$, 5.2ppb, 2.4ppb, and $24.8cfu/m^3$, respectively.

쿼드로터 무인항공기의 모델링 및 제어기 설계

이근욱(Keun Uk Lee),윤영훈(Young Hun Yun),장욱(Wook Chang),박진배(Jin Bae Park),최윤호(Yoon Ho Choi) 대한전기학회 2011 대한전기학회 학술대회 논문집 Vol.2011 No.7

공단밀집지역에 위치한 일개 응급의료센터에 내원한 급성산업중독환자에 대한 분석

신준현,문성우,백승원,임성익,윤영훈,이성우,홍윤식,Shin, Jun-Hyun,Moon, Sung-Woo,Baek, Seung-Won,Lim, Sung-Ik,Yoon, Young-Hun,Lee, Sung-Woo,Hong, Yun-Sik 대한임상독성학회 2008 대한임상독성학회지 Vol.6 No.2

Purpose: Surveys on poisoning usually involves intoxication rather than inhalation, skin contact, etc. Therefore, we examined the characteristics of patients who visited the emergency department in an industrial complex after acute industrial exposure to toxic materials. Methods: Medical records of patients exposed to toxic materials in the work places from April, 2006, to March, 2008, were analyzed retrospectively. Inhalation patients due to fire were excluded. Results: Subjects included 66 patients, with a mean age of $35.4{\pm}10.9$ years, mostly men (91%). Toxicity occurred in 51 patients (77%) by contact, 15 patients (23%) by inhalation, and none by oral ingestion. For toxic materials, 10 patients were exposed to hydrofluoric acid, 8 to hydrochloric acid, 7 to sodium hydroxide, 7 to metals, and others. The face and hands were the most frequent exposure site by contact. Most exposures were caused by accidents, with 29 cases (42%) exposed because of carelessness or not wearing protective equipment. Most complaints were pain on exposure site, but 7 of the inhalation patients complained of dyspnea. The majority of patients with contact exposure were discharged after wound care or observation. After inhalation exposure, 1 patient died and 5 patients were admitted to the intensive care unit. Conclusion: Major causes of workplace exposure were not wearing protective equipment or carelessness. Although contact exposures are usually benign, cautious observation and management are required in patients with inhalation exposure.