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紅藻 김屬 3種의 貝殼絲狀體의 成長, 成熟과 採苗에 미치는 照度의 影響
Young Jong KIM(金永鍾),Young Pyo KIM(金容標),Jong Ahm SHIN(申宗岩) 전남대학교 수산과학연구소 2003 수산과학연구소논문집 Vol.12 No.-
To advance seeding of conchospores of Porphyra dentata, P. seriata and P. tenera, the effect of light intensity on growth of shell-inhabiting conchocelis and formation and maturation of conchosporangia were studied from May to October in 1998. Growth of shell-inhabiting conchocelis of these species was similar to one another in early culture under natural light intensity, photoperiod and room temperature; growth of P. dentata and P. seriata was higher than that of P. tenera at 800 lux from August to September; growth of these three species was similar to one another at 800 lux in October. The color of shell-inhabiting conchocelis of P. dentata and P. seriata was red and the color of P. tenera black, but all the species were reddish-purple after mid-September. Formation rate of conchosporangia was 90% or more in P. tenera, 70% in P. seriata and less than 40% in P. dentata at September. Maturation of conchosporangia under 500 and 800 lux was better than 1,500 lux in the three species. Numbers of released conchospores was more at 18℃ than at 22℃, and the short-day treatment (8L:16D) gave rise to promotion of conchospore release. Numbers of conchospore germlings attached 1 ㎝ long netting-twine after 30 days of seeding were 35 individuals in P. tenera, 10 individuals in P. seriata and 3 individuals in P. dentata. Attached germlings of P. seriata were increased after 45 and 60 days; it suggests that monospores might be released in P. seriata.
기술사례 : 전자뇌관을 이용한 터널발파의 근거리 지반진동 특성
김용표 ( Yong Pyo Kim ),김갑수 ( Gab Soo Kim ),손영복 ( Young Bok Son ),김재훈 ( Jae Hoon Kim ),김희도 ( Hee Do Kim ),이준원 ( Jun Won Lee ) 대한화약발파공학회 2013 화약발파 Vol.31 No.1
전자뇌관을 사용하여 근접 보안물건에 대한 터널발파 진동제어를 위해서는 근거리 발파진동 특성에 대한 이해가 필요하다. 본 논문에서는 터널발파 진동의 결정에 있어서, 심 발부와 확대부의 영향을 분석하였다. 분석을 위한 계측자료는 “원주~강릉 복선전철 제OO공구 노반건설공사” OOO 터널 현장의 기존 도로 하부통과 구간에서 획득하였다. 이에, 0.01%의 높은 시차 정밀도를 가진 터널용 전자발파시스템을 활용하여, 최 대지발당 장약 량을 정밀하게 유지함으로써 뇌관 오차에 의한 진동 증폭현상을 제거하고, 진동제어에 유리한 심 빼기 발파 방법으로 번 컷(Burn-Cut)을 채택하였다. 그 결과, 심 발부의 진동수준이 가장 높다는 일반적인 발파 상식과 달리 확대부의 진동수준이 상대적으로 더욱 높은 것으로 나타났다. 결과적으로, 근접 거리의 터널 발파진동은 전자뇌 관을 심 발부에 적용 함으로서 저감시킬 수 있으며, 전체 영역에 전자뇌관을 사용할 경우 더욱 효과적으로 발 파진 동을 감소시킬 수 있을 것으로 판단된다. In order to control tunnel blast vibration for adjacent facilities using electronic detonator, Understanding about the characteristics of near-field ground vibration is necessary. The purpose of this paper is to analyze effects of Cut-area and Extension-area vibration in relation to decision of tunnel blast vibration. These data were obtained at the top monitoring positions while OOO tunnel site of “Wonju~Gangneung double railroad section OO construction” was passing under the existing road. Thus, tunnel blasting was conducted by tunnel electronic blasting system with 0.01% high delay-time accuracy. It can be possible that not only keeping maximum charge per delay-time but also preventing amplification of vibration which is occurred by delay-time scatter using common detonators. Additionally, V-Cut was changed into Burn-Cut. The results was presented that vibration level of extension-holes were higher than Cut-holes. Therefore, near-field ground vibration can be effectively minimized using electronic detonators in the Cut area. And also more effective way to reduce tunnel blast vibration is full-face blast using electronic detonators.
방사무늬김 색소변이형 엽상체의 성장과 광합성의 색소함량
김용표(Young Pyo KIM),최성제(Sung Je CHOI),강성필(Sung Pil KANG),조용희(Young hi JO),신종암(Jong Ahm SHIN) 전남대학교 수산과학연구소 1998 수산과학연구소논문집 Vol.7 No.-
Comparative studies were made on growth and photosynthetic pigment contents of the gametothallus of the wild-type (U-511), the red-type (F6-1) and the green-type (C-01) in P. yezoensis. The mean gametothallus length of the green-type was lowest in the earlier growth period and was highest in the latter growth period. The mean relative growth rate per day was highest during the earlier growth period and became lower with age of gametothallus in all the three strains, and the differences among the strains were almost negligible during the period later than 28 days old. The mean contents of chlorophyll a, phycoerythrin and phycocyanin on a gametothallus area basis were highest in the red-type mutant. In the red-type mutant, the PE/Chl. a and the PE/PC ratios were highest and the PC/Chl. a ratio was similar to as that of the wild-type.
김용표(Young Pyo KIM),최성제(Sung Je CHOI),김범규(Beom Kyu KIM),심종암(Jong Ahm SHIN) 전남대학교 수산과학연구소 1998 수산과학연구소논문집 Vol.7 No.-
Comparative study was made on absorption spectra (300-750 ㎜) of water extracts centrifuged (5,000 rpm, 5min.) of the sporothallus of the wild-type (U-511) plant, and the red-type (H-25), the green-type (C-O giant), the yellow-type (ZY-1), the violet-type (ZV-1), the gray-type (ZGr-1), the light red-type (ZLR-1), the light green-type (C-31) and the light yellow-type (ZLY-1) mutants in P. yezoensis. The absorption was recorded with a double monochrometer recording spectrophotometer (Hitachi U-3210) not equipped with an integrating sphere attachment or a head-on photomultiplier. The wild-type plant and the red-, the green-, the violet- and the light red-type mutants showed the spectra having a maximum in near ultraviolet region (300-400 ㎜), indicating the presence of the ultraviolet absorbing substance. The wild-type plant and the red-, the green-, the yellow- and the violet-type mutants showed the spectra having two absorption maxima in 530-580 ㎜ region. The yellow- and the gray-type mutants had the spectra with markedly low absorption in a 300-750 ㎜ region. The violet- and the gray-type mutants were characterized by higher PE/Chl. a and PC/Chl. a ratios. The light green-type mutant was marked by lower PE/Chl. a and PE/PC ratios, while the light yellow-type by higher PE/Chl. a and PE/PC ratios. The light red-type mutant was featured by higher PE/Chl. a and PE/PC ratios and by lower PC/Chl. a ratio. It is inferred : that the light green- and the light yellow-type mutants might result from qualitative and quantitative variations of phycoerythrin ; that the gray- and the light red-type mutants might originate from qualitative variation of phycoerythrin and quantitative variation of chlorophyll a and phycocyanin; that the violet-type mutant might arise from quantitative variation of chlorophyll a; that the yellow-type might stem from quantitative variation of phycocyanin.
김영주,김용표,Kim, Young Ju,Kim, Yong Pyo 한국입자에어로졸학회 2017 Particle and Aerosol Research Vol.13 No.2
Policy direction for the management of air quality in Korea has been on the reduction of the average concentrations of the criteria air pollutants such as sulfur dioxide and fine particles. However, recently, risk based management of air pollutants becomes an important issue. In this study, to develop an effective air quality management policy direction in Korea, (1) the fourth Multiple Air Toxics Exposure Study (MATES IV) carried out in the South Coast Air Quality Management District (SQAQMD) in the USA is reviewed and (2) the results are compared with in these in Seoul and (3) policy directions are suggested. It was found that (1) systematic integrated study comprising of measurement, modeling, emission inventory estimation, and risk assessment was essential to estimate the health risk of air pollutants reliably, (2) cancer risk of diesel particle was dominant over other air pollutants, and (3) health risk based emissions were different from amount based emissions. It was suggested that (1) reducing the exposure from hot spots might important to reduce health risk from air pollutants and (2) an integrated air quality management administration system is important for the efficient management of air pollution.
서울 대기 중 PM<sub>2.5</sub> 내 OC와 EC로부터 SOC 추정방법의 비교 평가
유하영,김기애,김용표,정창훈,신혜정,문광주,박승명,이지이,Yoo, Ha Young,Kim, Ki Ae,Kim, Yong Pyo,Jung, Chang Hoon,Shin, Hye Jung,Moon, Kwang Ju,Park, Seung Myung,Lee, Ji Yi 한국입자에어로졸학회 2020 Particle and Aerosol Research Vol.16 No.1
The organic carbon in the ambient particulate matter (PM) is divided into primary organic carbon (POC) and secondary organic carbon (SOC) by their formation way. To regulate PM effectively, the estimation of the amount of POC and SOC separately is one of important consideration. Since SOC cannot be measured directly, previous studies have evaluated determination of SOC by the EC tracer method. The EC tracer method is a method of estimating the SOC value from calculating the POC by determining (OC/EC)pri which is the ratio of the measured values of OC and EC from the primary combustion source. In this study, three different ways were applied to OC and EC concentrations in PM<sub>2.5</sub> measured at Seoul for determining (OC/EC)pri: 1) the minimum value of OC/EC ratio during the measurement period; 2) regression analysis of OC vs. EC to select the lower 5-20% OC/EC ratio; 3) determining the OC/EC ratio which has lowest correlation coefficient value (R<sup>2</sup>) between EC and SOC which is reported as minimum R squared method (MRS). Each (OC/EC)pri ratio of three ways are 0.35, 1.22, and 1.77, respectively from the 1 hourly data. We compared the (OC/EC)pri ratio from 1hourly data with 24 hourly data and revealed that (OC/EC)pri estimated from 24 hourly data had twice larger than 1hourly data due to the low time resolution of sampling. We finally confirmed that the most appropriate value of (OC/EC)pri is that calculated by a regression analysis of 1 hourly data and estimated SOC amounts at PM<sub>2.5</sub> of the Seoul atmosphere.
서울 대기 중 미세먼지 내 n-alkanes의 계절별 농도 및 배출 특성
이세표 ( Se Pyo Lee ),임형배 ( Hyung Bae Lim ),이지이 ( Ji Yi Lee ),김용표 ( Young Pyo Kim ) 한국환경분석학회 2015 환경분석과 독성보건 Vol.18 No.2
Ambient particulate n-alkanes were analyzed for PM10 samples collected in Seoul from April 2010 to April 2011. The average concentration of total n-alkanes from C20 to C34 was 53.68±35.02 ng/m3, ranging from 10.36 to 166.1 ng/m3. The concentration distributions of n-alkane compounds in this study exhibited peaks at C29 during the whole sampling period, which indicated that n-alkanes of biogenic origin such as plant wax predominated in the PM10 in Seoul. The average carbon preference index (CPI) value was 1.95±0.54 in the range of 0.82-6.02. The decrease of the CPI during the heating period indicated the contribution of fossil fuel combustion. Estimation of sources based on the WNA% calculation showed that 32.2±15.0% of the n-alkanes in PM10 in Seoul during the non-heating period originated from plant wax. The source estimation was performed using the principal component analysis method. Three major components were found to account for 38.2%, 33.4% and 19.0% of the total variance, which corresponded to plant wax, vehicular emissions and fossil fuels for heating, respectively.