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김준섭,권오구,박진석,오종수,박정현,박제식,안세한,이용환,서정호,신태섭,최영배,김덕수,이관,박수경 東國大學校醫學硏究所 2002 東國醫學 Vol.9 No.1
본 연구는 경주지역 1개 고등학교 3학년 여고생을 대상으로 초경 시작 전인 초등학교 4학년부터 고등학교 2학년까지의 키, 몸무게, 가슴둘레 수치와 초경 연령을 파악하여 여성의 초경이 빠를수록 체성장 속도의 변화가 있을 것이라는 가설을 기초로 두 요인간의 관련성을 파악하고자 시행되었다. 경주시 1개 여자고등학교 3학년생 총 317명에 대해 ㅊ경 나이, 초경시 심리 상태, 초경이 시작되었을 때의 상담 여부와 상담하였던 사람, 부모 신장과 초경전후의 식사 규칙성, 다이어트 경험, 수면시간, 스트레스, 음주/흡연 여부, 질병력 등에 대한 설문 조사를 시행하였고, 초등학교 4학년부터 고등학교 2학년까지의 키, 몸무게, 가슴둘레에 대한 정보는 건강기록부에서 확보하였다. 상기 대상자 중 건강기록부가 분실된 39명, 초경나이에 대해 응답하지 않았던 29명 및 결석 등으로 조사를 하지 못하였던 42명을 제외한 조사 대상자는 206명으로 선정하였다. 대상자들의 초경연령 평균값(Mean±SD)은 13.0±1.11이었고, 초등학교 4학년부터 고등학교 2학년까지의 초경 이후 신장 성장률은 감소하였으며, 초경연령이 빠른 군이 초등학교 때는 신장에 있어서 우위를 차지하나 고등학교에 오면서 신장은 비슷한 수준이 되었다. 초경후 1-2년 사이에 체중과 흉위의 증가율은 감소하였고, 초경연령이 빠른 군이 초등학교와 고등학교 사이에 체중과 흉위에서 모두 우위를 차지하였다. 본 연구의 결과는, 흔히 이차 성징의 시작 시점 혹은 사춘기의 시작 시점으로 보고있는 초경 연령이 청소년기의 성장과 밀접한 관련성이 있고, 특히 체중과 흉위의 성장 속도와 밀접한 관련성이 있음을 시사한다. To understand the onset of menarche in relation to changes in physical growth that take place during female adolescence, especially the changes in height and weight velocity. The 207 senior in one women high school of Kyongju were investigated in April 3 to 8, 2001. We collected the information, relation in the age at menarche, height & weight of parents, regularity of eating, and obesity diet, duration of sleeping, sickness & stress near age at menarche, by self-recording. The status of height, weight & chest circumference between the 4th grade of primary school and the junior of high school was collected by individual Health Record. The results were followed; The average age at menarche was 12.95±1.11 years old and the most frequent age of menarche is 13 years. After menarche, the velocity of height, weight and chest circumference were decreased. The most rapid group of menarche hold dominant position in height during elementary school. As time passed, they dont hold dominant position in height. The most rapid group of menarche get an advantage in the weight and the girth of chest after elementary school. The height of subjects is directly proportional to the height of their parents. These results suggest that the starting age at menestuation can be closely associated with physical growth and development.
고추炭疽病에 對한 新 浸透性 殺菌劑 Systhane M의 效果
鄭鳳九,沈在燮 충북대학교 농업과학기술연구소 1986 農業科學硏究 Vol.4 No.-
In order to investigate effect of the new fungicide systhane M for controlling red pepper anthracnose, this experiment was carried out in a field and indoor test during the summer months, June to September in 1986. Foliar applications of systhane M with the other 4 chemicals effectively reduced anthracnose fruits infected of red pepper compared with control. No chemical damage of the fungicides used was shown throughout the experiment. Because less than 500ppm of the fungicide was not completely retarded germination of the two causal fungi, it was recommended that effective concentration of the fungicide was more than 500ppm. In addition, further experiment regarding dates and times of the chemical application should be conducted in the future in order to obtain basic materials for establishing a feasible control calender.
Acoustic Duct 내부에 장착된 아이오노머의 이온기 변화에 따른 흡음패턴 측정
장순석,김준섭,이제형,박재철 조선대학교 전자정보통신연구소 2001 電子情報通信硏究所論文誌 Vol.4 No.2
Nowadays, as the industrial technology and instrumentation are developed, the interest of the characteristic improvement of sound absorbing materials is rising. Recently new sound absorbing materials are being developed and manufactured for commercialization. But most of sound absorbing materials are polymer-typed or are fabricated by polymers (mixtures of polymer and glass fiber, asbestos...) for better physical characteristic. However, there was not much research about sound absorption change by the change of the ionic nature. In this paper, I composed polymers that include alkaline or acid, or other polymer that have the ionic nature to improve sound absorption characteristic and searched the characteristic pattern of the sound absorption of polymer. I used probe microphone instead of 1/4 condenser microphone such as two- microphone method in order to measure in-duct absorption coefficient of specimen of ionomers that are thin and small so that measuring absorption coefficient is not well defined.
Je-Hyeok Yu,Min-Heon Yun,Seon-Mo Yang,Dong-Seop Kim,Young-Ho Yun,Kyung-Ho Ma,Eun-Ho Son,Sok-Young Lee,Hong-Sig Kim,Sun-Hee Woo 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
Breeding and cultivation techniques are being treated very severely regarding ecological and physiological development in buckwheat. This study was conducted to focus on the diversity occurring in the cultivated and tartary buckwheat and provide an overview of the characteristics and genetic resources activities. Morphological results showed that the height of common buckwheat ranges from 82-90cm, common buckwheat induced by 200Gy ranges from 52-75cm, common buckwheat induced by 300Gy ranges from 43-56cm, common buckwheat induced by 400Gy ranges from 33-60cm whereas the tartary buckwheat hight ranges from 65-87cm, and while it exposed to various radiation (200Gy, 300Gy and 400Gy), the obtained height ranges from 73-92cm, 55-80cm and 60-75cm respectively. However, the stems from the both cultivar are hollow and that’s why, the plant is very prone to lodging. The leaf color of common buckwheat was green, 200Gray, 300Gy 400Gy common buckwheat light green and green, whereas the tartary buckwheat green and bottle-green, 200Gray 300Gy 400Gy tatary buckwheat bottle-green, common buckwheat (control, 200Gy, 300Gy, 400Gy) stem color is light green and pink, flower color is white, tartary buckwheat (control, 200Gy, 300Gy, 400Gy) flower color is light green. The stem color from tartary buckwheat showed (200Gy, 300Gy, 400Gy) light green and light red color. The results revealed that the two buckwheat cultivars showed diversified characteristics.
Epidemiological Characterization of Opportunistic Mycoses between the Years 2006 and 2010 in Korea
( Je Seop Park ),( Seung Hak Cho ),( Seung Ki Youn ),( Young Seok Bak ),( Young Bin Yu ),( Young Kwon Kim ) 한국미생물 · 생명공학회 2016 Journal of microbiology and biotechnology Vol.26 No.1
In order to perform an epidemiological characterization of opportunistic mycosis infections, we collected health insurance data between the years 2006 and 2010 from the Health Insurance Corporation and analyzed the data to determine the prevalence of opportunistic mycoses and treatment management of opportunistic mycoses. The prevalence within the study increased consecutively by 0.02% to 0.12% every year. The annual prevalence of opportunistic mycoses increased from 2.437% in 2006 to 2.709% in 2010. The average annual prevalence was 2.605%. Candidiasis occurred the most frequently, followed by aspergillosis, zygomycosis, and cryptococcosis. The regions with the highest incidences were the capital areas, Gyeonggi and Seoul. By sex, the prevalence in females (4.851%) was 14 times higher than that in males (0.352%). Interestingly, the adults from the 20- to 49-year-old age group showed higher prevalence than children and the elderly. The average duration of hospitalized treatment was 17.31 days and of outpatient treatment was 2.21 days; 3,577 hundred million won was used in total for medical expenses. This study provides useful data to study trends of opportunistic mycoses.
소방대원 소음 노출 예방을 위한 고출력 지향성 사이렌의 적용성 평가
박제섭(Je-Seop Park),한동훈(Dong-Hun Han) 국립소방연구원 2021 소방안전연구 Vol.2 No.1
소방대원은 현장 활동 과정에서 노출되는 다양하고 높은 소음으로 인해 소음성 난청 등 청력 질환자 비율이 높다. 최근 소방차용 사이렌의 상한 음압 기준이 상향됨에 따라 소방대원은 더 높은 소음에 노출될 가능성이 크다. 고출력 지향성 사이렌은 전방으로의 소음 전파량을 증가시키기 위해 전파 각도를 줄인 형태로 소리가 퍼지지 않고 일정 각도로 집중된다. 본 사이렌을 소방차에 적용한 결과, 전방 지향 성능 및 소음 강도가 기존 사이렌 대비 증가하였으나, 오히려 차량 내부의 소음 강도는 소음 노출 기준치 이하로 측정되었다. 향후 고출력 지향성 사이렌을 다양한 소방차에 확대 적용하면 전방 안전사고 예방뿐만 아니라 탑승한 소방대원의 소음 노출 예방에 도움이 될 것으로 기대된다. Firefighters are exposed to strong noise during various firefighting activities. Hence, the proportion of people with noise-related diseases is high. As the performance standards for fire engine sirens have recently been strengthened, they are likely to be exposed to higher noise levels. To prevent noise exposure, a new firefighting acoustic hailing device (AHD) siren with directional characteristics was manufactured. We analyzed the effect of preventing noise exposure through the application of this siren to fire engines. With the application of a new AHD siren, frontal directivity and noise intensity were higher than those of the existing siren, but when the new AHD siren was applied, the level of noise exposure inside the vehicle was rather lower than before. In conclusion, the noise exposure prevention performance of the new AHD siren was confirmed, and further study such as performance evaluation is required.
Studies on new antibiotics in Korea IV
Shim Je-Seop,Oh You-Jin,Yun Jeong-Ku,Han Seong-Soon Korean Society of Applied Entomology 1980 한국식물보호학회지 Vol.19 No.3
본시험은 한국산항생물질 또는 항생균의 개발이용을 목적으로 한 기초연구로서 주로 전년도의 계속연구와 아울러 토양시료로부터 새로히 항생세균을 분리하였다. 청주부근의 토양시료 500점으로부터 83점의 항생균을 분리하였으며 이들은 주로 gram음성균인 Escherichia coli에 유효한 것을 선별하였다. 이들에 대한 연구는 앞으로 계속할 것이며 수년간 계속 연구중인 우수항생균 JS7501은 그동안 수차에 걸쳐 재선별하였기 때문에 JS901로 개칭하여 본시험에 공시하였으며 항균작용법 위도 재확인하였으며 주로 추출을 목적으로 용매추출, 흡착, TLC, 이온교환 수지 등을 총동원하였으나 TLC에 의하여 활성이 확인된 4 spot를 분리할 수 있었다. JS7901의 배양배지로서는 Soytone Sugar배지가 가장 높은 항균력을 보였으며 Soytone보다는 Sugar가 활성물질 증가와 관계가 있었다. The antibiotic bacterium JS7901, one of the eighty three antibiotic microorganisms which have been is elated in the surburbs of CheongJu-city, showed the most effective antimicrobial activities against test organisms, both bacteria and fungi. Among the different culture media Soytone Sugar medium was the most effective for growth and activity of the JS7901 antibiotic bacterium a against both Escherichia coli and Staphyllococcus aureus by the cylinder plate method. The higher the sugar content, was, the greater the antibiotic amount of substances of JS7901 were produced in the soytone sugar media. The antibiotic bacterium, JS7901 appeared to have a broad activity spectrum showing inhibition in Vitro against gram positive and negative bacteria and plant disease fungi. In general, the active substances were not transferred into organic solvents. Only a small portion of the activity was transferred into ethyl ether and was also adsorbed to active carbon when the cultured broth was also adsorbed to active carbon when the cultured broth was at $pH\;2.0\~4.0$. On adjusting at pH 8.0, the activity disappeared. The crude active substances could be obtained by means of vacuum drying method and still shelved strong activity. The dried active rake was solved by solvents and crystallized into various shapes. The active substances were developed on the silica gel plate in the solvent system of n-butanol-acetic acid-water(3 : 1 : 1) and gave 5 pinkish colored spots when sprayed with $0.2\%$ ninhydrine in ethanol. The upper 5th spot, which was the result of using disc plate method with Escherichia coli was the strongest of these spots.
소방청사 차고지 공기질 분석 및 유해물질 노출 관리 방안
박제섭 ( Je-seop Park ),한동훈 ( Dong-hun Han ) 한국산업보건학회 (구 한국산업위생학회) 2020 한국산업보건학회지 Vol.30 No.4
Objectives: The aims of this study are to derive the characteristics of diesel exhaust gas emissions generated during vehicle checking in the garage of fire stations and of the related improvement plans for proper air quality management. Methods: The researcher measured changes in the air quality inside garages according to the operating conditions of the exhaust facility and before and after vehicle checking at three fire stations. Results: During the checking of fire engines, a large volume of hazardous substances exceeding management standards were generated, and improvement of the discharge facilities was required for proper air quality management. Conclusions: It is necessary to study the hazard evaluation of firefighters’ exposure to exhaust gas, to operate exhaust gas ventilation facilities, and to prepare technical standards for proper indoor air quality management.
Studies on new antibiotics in Korea 4
Shim Je-Seop,Oh You-Jin,Yun Jeong-Ku,Han Seong-Soon 한국응용곤충학회 1980 한국응용곤충학회지 Vol.19 No.3
본시험은 한국산항생물질 또는 항생균의 개발이용을 목적으로 한 기초연구로서 주로 전년도의 계속연구와 아울러 토양시료로부터 새로히 항생세균을 분리하였다. 청주부근의 토양시료 500점으로부터 83점의 항생균을 분리하였으며 이들은 주로 gram음성균인 Escherichia coli에 유효한 것을 선별하였다. 이들에 대한 연구는 앞으로 계속할 것이며 수년간 계속 연구중인 우수항생균 JS7501은 그동안 수차에 걸쳐 재선별하였기 때문에 JS901로 개칭하여 본시험에 공시하였으며 항균작용법 위도 재확인하였으며 주로 추출을 목적으로 용매추출, 흡착, TLC, 이온교환 수지 등을 총동원하였으나 TLC에 의하여 활성이 확인된 4 spot를 분리할 수 있었다. JS7901의 배양배지로서는 Soytone Sugar배지가 가장 높은 항균력을 보였으며 Soytone보다는 Sugar가 활성물질 증가와 관계가 있었다. The antibiotic bacterium JS7901, one of the eighty three antibiotic microorganisms which have been is elated in the surburbs of CheongJu-city, showed the most effective antimicrobial activities against test organisms, both bacteria and fungi. Among the different culture media Soytone Sugar medium was the most effective for growth and activity of the JS7901 antibiotic bacterium a against both Escherichia coli and Staphyllococcus aureus by the cylinder plate method. The higher the sugar content, was, the greater the antibiotic amount of substances of JS7901 were produced in the soytone sugar media. The antibiotic bacterium, JS7901 appeared to have a broad activity spectrum showing inhibition in Vitro against gram positive and negative bacteria and plant disease fungi. In general, the active substances were not transferred into organic solvents. Only a small portion of the activity was transferred into ethyl ether and was also adsorbed to active carbon when the cultured broth was also adsorbed to active carbon when the cultured broth was at . On adjusting at pH 8.0, the activity disappeared. The crude active substances could be obtained by means of vacuum drying method and still shelved strong activity. The dried active rake was solved by solvents and crystallized into various shapes. The active substances were developed on the silica gel plate in the solvent system of n-butanol-acetic acid-water(3 : 1 : 1) and gave 5 pinkish colored spots when sprayed with ninhydrine in ethanol. The upper 5th spot, which was the result of using disc plate method with Escherichia coli was the strongest of these spots.