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김석우,김성만,현명택,최동호,고정삼,박영하 제주대학교 공과대학 첨단기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.2
The heat performance in a forced circulating cool storage room was numerically investigated. A commercial PHOENICS package was used to simulate 3-D airflow. For solving the governing equations a standard k-ε turbulent model was implemented to calculate steady state turbulent velocity and temperature distributions. The results show that the large air contacting area of products increases the storage quality, because the airflow between products helps to remove the heat from the products by convective heat transfer.
김석우,김성만,현명택,최동호,고정삼,박영하 제주대학교 공과대학 첨단기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.2
The low temperature storage method has been used to increase the value of agricultural products by reducing quality deterioration and controlling respiration rate. The respiration rate of agricultural products depends on several factors such as temperature, moisture, gas composition and microbe inside the storage room. Among that temperature is the most important factor, which affects respiration rate and causes severe damage. The results obtained from these experiments are that electric consumption is decreased as setting temperature is decreasing and temperature deviation is increasing. In the ventilation experiment, the case ventilated four times a day(every six hours a day) with ten minutes operation each time, was inspected require as much electric consumption as non-ventilation case.
건강인에서 결핵균 30-kDa항원이 말초혈액 임파구증식에 미치는 영향
최대경,고석신,김화중,조은경,백태현,신철식 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.1
T lymphocytes are thought to play a central role in cell mediated immune response. To Study the T lymphocyte proliferative response to 30-kDa antigen purified from Mycobacterium tuberculosis H37Rv, peripheral blood lymphocytes isolated from healthy subjects were stimulated with the 30kDa antigen, crude antigen or PHA. Healthy subjects were divided into three groups so that PPD(+), PPD(±) and PPD(-). The proliferations of lymphocytes were measured by the incroporation of ^3H-thyrnidine. The results were summarized as follows: 1. For the PPD(+) person, at concentration of < 1 ㎍/ml, the proliferative response to 30-kDa antigen resulted in a mild reduction but crude antigen showed relatively rapid reduction. For the PPD(-) person, decreasing the concentration of the both antigens showed rapid reduction of proliferation 2. The lymphocytes proliferations to 30-kDa antigen and crude antigen were significantly increased in PPD(+) group when compared to those in PPD(-) group, but PHA response was no significant difference. 3. The sensitivity and specificity of lymphocyte proliferation assay to 30-kDa antigen and crude antigen when compared with skin test results were 92.3%, 100% and 76.9%, 50%, respectively.
Koh, Hyun Seok,Kim, Gyoung Hee,Lee, Young Sun,Koh, Young Jin,Jung, Jae Sung The Korean Society of Plant Pathology 2014 Plant Pathology Journal Vol.30 No.1
The molecular features of Pseudomonas syringae pv. actinidiae strains isolated in Korea were compared with strains isolated in Japan and Italy. Sequencing of eight P. syringae pv. actinidiae and three P. syringae pv. theae strains revealed a total of 44 single nucleotide polymorphisms across 4,818 bp of the concatenated alignment of nine genes. A multiplex PCR assay was developed for the detection of P. syringae pv. actinidiae and for the specific detection of recent haplotype strains other than strains isolated since the 1980s in Korea. The primer pair, designated as TacF and TacR, specifically amplified a 545-bp fragment with the genomic DNA of new haplotype of P. syringae pv. actinidiae strains. A multiplex PCR conducted with the TacF/TacR primer pair and the universal primer pair for all P. syringae pv. actinidiae strains can be simultaneously applied for the detection of P. syringae pv. actinidiae and for the differentiation of new haplotype strains.
Koh, Hyun Seok,Sohn, San Ho,Lee, Young Sun,Koh, Young Jin,Song, Jang Hoon,Jung, Jae Sung The Korean Society of Plant Pathology 2013 Plant Pathology Journal Vol.29 No.4
The fungus Venturia nashicola is the causal agent of scab on Asian pears. For the rapid and reliable identification as well as sensitive detection of V. nashicola, a PCR-based technique was developed. DNA fingerprints of three closely related species, V. nashicola, V. pirina, and V. inaequalis, were obtained by random amplified polymorphic DNA (RAPD) analysis. Two RAPD markers specific to V. nashicola were identified by PCR, after which two pairs of sequence characterized amplified region (SCAR) primers were designed from the nucleotide sequences of the markers. The SCAR primer pairs, designated as D12F/D12R and E11F/E11R, amplified 535-bp and 525-bp DNA fragments, respectively, only from genomic DNA of V. nashicola. The specificity of the primer sets was tested on strains representing three species of Venturia and 20 fungal plant pathogens. The nested PCR primer pair specific to V. nashicola was developed based on the sequence of the species-specific 525-bp DNA fragment amplified by primer set E11F/E11R. The internal primer pair Na11F/Na11R amplified a 235-bp fragment from V. nashicola, but not from any other fungal species tested. The nested PCR assay was sensitive enough to detect the specific fragment in 50 fg of V. nashicola DNA.
Koh, Young Jun,Koh, Bong Ihn,Kim, Honsoul,Joo, Hyung Joon,Jin, Ho Kyoung,Jeon, Jongwook,Choi, Chulhee,Lee, Dong Hun,Chung, Jin Ho,Cho, Chung-Hyun,Park, Won Seok,Ryu, Ji-Kan,Suh, Jun Kyu,Koh, Gou Young Ovid Technologies Wolters Kluwer -American Heart A 2011 Arteriosclerosis, thrombosis, and vascular biology Vol.31 No.5