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春季 錦江下流域의 水質 및 Diatom의 組成變化에 關하여
金榮吉,金鍾培 군산대학교 1978 群山水産專門大學 硏究報告 Vol.12 No.2
The monthly observation on the composition quantity of Diatoms and chemical contents was done at 7 stations in the below stream area of Gum River from April to June, 1978. The total numbers of Diatom appeared by observation were 27 species ; neritic planktons(27), and oceanic planktons(2) and the composition organism of total diatoms was 1,600Cells/ℓ∼41,700Cells/ℓ. The surface water temperature is 6.8∼20.8℃ at St. 3, 13.4∼23. 6℃ at St. 7 and the difference between two stations, was 3.3∼6.6℃, when, the temperature at St. 5∼7 was higher than 1∼4. Transparency was 3.2m at St. 7, 11m at St, 3 and salinity was 29, 9∼32.2% at St. 1∼4, 28.4∼29.7% at 5∼7. The surface water of dissolved oxygen content was 5. 3∼6.2cc/ℓ, and bottom water was 5.3∼5.9cc/ℓ. The content of C.O. D was 0.49∼1.2ppm and it was higher in April than it was in May and June. In case of NO2-N, the surface water was 0.3∼0.6㎍- at/ℓ, bottom water was 0.3∼0.6㎍- at/ℓ, and it's contents was the highest in June. The contents of PO4- P was 0.03∼0.0㎍- at/ℓ, SiO2 was 5.9∼10.1㎍- at/ℓ and Ammonia-N was 0.8∼1.6㎍ at/ℓ.
西海 沿岸의 養殖場 環境 調査 : 2. 高亭理 海域 김養殖場의 水質環境
金容浩,金榮吉,李廷烈,金鍾連 군산대학교 1990 群山水産專門大學 硏究報告 Vol.24 No.1
To understand the effects of oceanographic condition on the harvest of laver and establish the basic environmental data for cultivation farm of laver, a series of survey was carried out in Gojeong-ri sea area, west coast of Korea from January to September, 1987. Variation of water temperature in Gojeong-ri sea area was 3.8-25.8℃, pH was 7.8-8.4, and transparency was 1.3-3.1m. Salinity was changed from 19.57 to 31.99% and lower remarkably in July and August owing to a heavy rain. The concentration of DO in surface water wart varied from 9.4-10.1㎎/ℓ and in lower layer was 8.0-9.99㎎/ℓ . COD was 0-4.28㎎/ℓ by alkalic modification of potassium permanganate method. Distribution of total suspended solid was 13.7-488.7㎎/ℓ and the rate of light penetration in 1m water column was 7.2-15.5%. The concentration of nutrients were changed in 0.48-23.63㎍-at./ℓ for ammonia nitrogen, 0-4.45㎍-at./ℓ for nitrite nitrogen, 0.39-3.13㎍-at./ℓ for nitrate nitrogen, 0-21.42㎍-at./ℓ for phosphate, and 0.84-157.32㎍-at./ℓ for silicate. It was showed high concentration in summertime, raining season in general. The concentration of chlorophyll a was 0.39-20.62㎎/㎥. Total 57 species of phytoplankton and 21 groups of zooplankton were identified from collected samples. Dominant species were Coscinodiscus radiatus, Eucampia zodiacus as a phytoplankton and Noctiluca scinitillans, Cladocera, Copepods sp. as a zooplankton. The total standing crop of phytoplankton was ranged of 5,500-1,524,400cells/ℓ and that of zooplankton was 3,000-43,000 individuals/㎥.
安鍾弼,朴吉鉉,金永先 조선대학교 국토개발연구소 1988 국토개발연구 Vol.8 No.1
In Seadyke design a surface stress Calculation using osterberg chart for few point has been generally used to settlement quantity Computation. This study is developed to the Computer Program of integral formula having a Zonal triangular load, A few Case studies are examinedand find out degree of error about the Cross section. This results can be use to the seadyke design.
남상길,조경연,이수범,김종진 釜慶大學校 1997 釜慶大學校 論文集 Vol.2 No.2
The wide spread of multimedia system demands a wide viewing angle display device which can imform a message to many peoples in open area. This paper is about the design and simulating of a large viewing LED pannel control ASIC(Application Specific Integrated Circuit). This LED pannel control ASIC runs on 16bit micropricessor MC68EC000 and has following functions : 16 line interlaced LED pannel contriller, memory controller, 16 channel priority interrupt cotroller, 2 channel direct memory access controller, 2 channel 12 bit clcok and timer, 2channel infrared remocon receiver, 2 channel RS-23C with 16 byte FIFO, IBMPC/AT compatible keyboard interface, battery battery backuped real time clock and timer,2controller, battery backuped 256 byte SRAM and watch dog timer. The 0.6 micronCMOS Sea of Gate is used to desing the ASIC in amiunt of about 39,000 gates,and it is simulated at 48MHz
아질산 노출이 이스라엘잉어 혈장내 아질산 농도 및 간장 약물대사효소에 미치는 영향
박관하,최상훈,김영길,김용호,최선남,김종배 한국환경독성학회 2003 환경독성보건학회지 Vol.18 No.2
Effects of ambient nitrite, N0₂^(-), at 1, 3, 10 and 30 mg/l, on the changes of plasma nitrite/nitrate and on hepatic drug-metabolizing enzyme activity were examined in the juvenile Israeli carp, Cyprinus carpio. When the fish were exposed to 1 and 3 mg/l N0₂^(-), there was an exposure duration-dependent increase in plasma N0₂- over the 96-hr period reaching 6~7 fold excess the ambient concentration, In the fish exposed to 10 mg/l, a plateau concentration of less than 2-fold of the environment was attained in 12 hr. With 30 mg/l, however, the maximal plasma NOf was 41.25 mg/1 at 12 hr followed by a gradual decline. There was a concentration increase in methemoglobin (metHb) level in all N02^(-)-exposed groups and a significant decrease in hematocrit value in 30 mg/l group after 96-hr exposure. Apart from the blunted increase in plasma N0₂^(-) with higher N0₂^(-)(10 and 30 mg/1) exposure, the ratio of plasma N0₃^(-) to N0₂^(-) was significantly higher in these groups compared to 1 and 3 mg/l. The imbalance in the plasma N0₃^(-)/N0₂^(-) at higher N0₂^(-) exposure suggests a possible accelerated conversion of N0₂^(-) to N0₃^(-). Nitrite exposure did not affect the hepatic drug-metabolic activities in juvenile Israeli carp. All these data indicate that disposition of N0₂- differ depending upon exposed concentration and that metHb production may not be the exclusive toxic mechanism in carp
Kim, Kyung-A,Kim, Jong-Chan,Ko, Hoan-Uck,Lee, Jung-Bock,Kim, Young-Sug,Park, Yong-Bae,Lee, Myung-Jin,Kim, Myung-Gill,Kim, Jae-Kwan,Park, Eun-Mi 대한미생물학회 2008 Journal of Bacteriology and Virology Vol.38 No.2
The integrated cell culture-PCR (ICC-PCR) method has been suggested as an improved method for detection of viruses in water environments. We tested 57 source waters including finished water samples in Gyeonggi-do for enteric viral contamination using total culturable virus assay (TCVA) using BGMK cells and ICC-PCR. Nineteen of the 57 source water samples (33.3%) exhibited the cytopathic effect (CPE) on BGMK cells and no finished water did exhibited CPE. Nineteen samples (33.3%) of the 57 were positive for reoviruses. For the enteroviruses, only 3 samples (5.3%) of the 57 samples showed positive results. By using ICC-PCR method, 202 flasks from source water samples were positive for enteroviruses and reoviruses. Three samples from source water were positive for both viruses. However, any flasks tested was not co-infected with two types of viruses. While the enteric viral frequencies in TCVA and ICC-PCR were similar, the viral frequency for reoviruses at first passage in two type of method was higher in ICC-PCR (94.7%) than TCVA (56.9%).
Developmental Characteristics and Life History of the Korean Native Firefly, Pyrocoelia rufa
( Jong Gill Kim ),( Keun Young Kim ),( Young Cheol Choi ),( Ji Young Choi ),( Sam Eun Kim ),( Byung Rae Jin ),( Sang Mong Lee ),( Jong Eun Lee ),( Ki Yeol Lee ),( Sang Ho Lee ) 한국잠사학회 2003 International Journal of Industrial Entomology Vol.6 No.1
미토콘드리아 DNA 의 COI 유전자 염기서열을 이용한 애반딧불이 Luciola(Coleoptera : Lampyridae)의 유전적 분할에 관한 연구
김익수,최지영,최영철,진병래,김근영,김삼은,손흥대,김종길,배진식,이기열,노시갑 한국유전학회 2001 Genes & Genomics Vol.23 No.3
To investigate the genetic structure of the firefly population, known as Luciola lateralis, in Korea. We determined on a portion of mitochondrial Cytochrome Oxidase Subunit I(COI) gene sequences (403 bp) for phylogenetic comparison. Sequence analysis of 80 individuals collected from 12 localities revealed 24 haplotypes, ranging in sequence divergence from 0.2% to 4.0%. Phylogenetic analyses using PAUP, PHYLIP, and networks subdivided L lateralis into two Glades (termed clade A and B) and the nucleotide divergence between them was 2.2%. This haplotype subdivision was also in accordance with geographic separation: one at Ansung, Suwon, Namhe, Henam, and Muju, and the other at Kwesan, Poun, Yangyang, and Ponghwa. Population genetic analysis subdivided these two population groups with a substantial statistical significance (p=0.000), suggesting the presence of a long-term barrier to maternal gene flow in the firefly populations. We interpreted this phenomenon in terms of geomorphological features of the Korean Peninsula: clade B in the localities neighboring "Bekdudegan", which is the major Korean mountain ranges and clade A in the lowlands, which is differentiated from "Bekdudegan".
Ecology of the Black Soldier Fly, Hermetia illucens (Diptera: Stratmyidae) in Korea
Jong-Gill Kim,Ji-Young Choi,Won-Tae Kim,Gil-Sang Jeong,Kwan-Ho Park,Young-cheol Choi 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.05
This study was conducted to investigate the distribution pattern, ecological characteristics and life cycle of the Black Soldier Fly (Hermetia illucens, BSF). The BSF was widely distributed throughout Korea. The insect was mainly found in the vicinity of and in cattle sheds, manure sheds, living waste dump grounds, and food waste dump grounds. Developmental characteristics of the BSF are as follows: the egg was long oval shaped of 887㎛ in the major axis and 190㎛ in the minor axis; it weighed 24㎍. Female oviposited ca. 1,000 eggs on average; eggs hatched in 81 hours under laboratory condition (27℃, 60% R.H.). The duration of the larval stage was approximately 15-20 days. The size of the last instar larvae was 21mm. The cuticle of the pupae gradually acquired red-brown color and the size of them was 19 mm. The pupal stage was shorter for females (16 days) than males (15 days). Adults were sized about 13-20mm long and black-colored. The life span of adult insects was 5-8 days for the first generation (June-July), 7-10 days for the second generation (Aug.-Sept.), and 13-18 days for the third generation (Sept.-Oct.). Mating started on the next day of emergence and actively occurred at the third day after emergence. Mating mostly occurred between 10:00 and 16:00 during which light intensity is highest. Egg-laying started on the third day and was most frequent from the fourth to the sixth day after emergence. Similar to mating time, females oviposited mostly between 10:00 and 16:00.