• Korean Journal of Organic Agriculture
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• v.14 no.3
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• pp.251-266
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• 2006

This study was surveyed and analyzed in 2005 year for environmentally-friendly rice's production 78 farmers in korea. The major results was as follows: The average age of farmers were 54 years old, the experiences of environmentally-friendly rice's production farms was 7.4 years, the cultivated scales of environmentally-friendly rice's production was 3.4ha. The 74%'s Farmers of all unified rice's breeds for rice's production of high-grade in quality, the ranking of rice's breeds selection were the high-grade rice's breeds of government>japan rice's breeds. The control of damage by blight and insects were needed environmentally-friendly control, the endured study of this control were very important. To cut down cost of the environmentally-friendly rice for income security of farmers and sustenance of farming will. To receive reasonable price of environmentally-friendly rice, the brand image were raised to consumers, the variety and miniaturization of rice packaging unit were needed in view of consumers. In addition to must be campaigns of publicity through the press and event to consumers, were managed the exchange of rice goods and exchanged e-mail together consumers for the maintenance of confidence. To drive direct marketing between environmentally-friendly rice farmers and consumers through experiential marketing, to diversify the marketing channel. To strengthen public relations at regional level and relationship at the consumers.

• Korean Journal of Biological Psychiatry
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• v.4 no.2
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• pp.234-236
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• 1997

Though initial report from Japan showed positive association of schizophrenia with dinucleotide repeat polymorphism in the NT-3 gene, subsequent studies showed mixed results. Therefore we conducted a replication study with Korean schizophrenics and matched controls who share similar ethnic background with Japanese population. The frequency of allele of dinucleotide repeat at 147 base pairs in the NT-3 gene was slightly increased, however, failed to reach statistical significance(${\chi}^2$=1.884, df=1, p<0.170) between the two groups. These findings do not support an association of NT-3 gene polymorphism with schizophrenia in Korean sample.

• Korean Journal of Ichthyology
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• v.30 no.3
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• pp.175-180
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• 2018

A single bothid specimen (113.9 mm in standard length) was collected by bottom trawl from southern Jejudo Island, Korea. It was easily identified as Kamoharaia megastoma (Kamohara, 1936), based on extremely large mouth. The species is characterized by maxillary extending beyond eyes, three pairs of long curved canines on lower jaw, tip of vomer projecting into mouth cavity, blackish pectoral fin, and blind side without lateral line. We described it as the first record to Korean fish fauna, and proposed the new Korean name, "Keun-ip-dung-geul-neop-chi" for this species.

• Asian Pacific Journal of Cancer Prevention
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• v.13 no.8
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• pp.4093-4095
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• 2012

Objective: To determine whether pituitary adenomas can be diagnosed by identifying protein biomarkers in the serum. Methods: We compared serum proteins from 65 pituitary adenoma patients and 90 healthy donors using proteomic fingerprint technology combining magnetic beads with matrix assisted laser desorption ionization time of flight mass spectrometry (MALDI-TOF-MS). Results: A total of 42 M/Z peaks were identified as related to pituitary adenoma (P<0.01). A diagnostic model established based on three biomarkers (3382.0, 4601.9, 9191.2) showed that the sensitivity of diagnosing pituitary adenoma was 90.0% and the specificity was 88.3%. The model was further tested by blind analysis showing that the sensitivity was 88.0% and the specificity was 83.3%. Conclusions: These results suggest that proteomic fingerprint technology can be used to identify pituitary adenoma biomarkers and the model based on three biomarkers (3382.0, 4601.9, 9191.2) provides a powerful and reliable method for diagnosing pituitary adenoma.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2005.05a
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• pp.370-372
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• 2005

본 연구는 전자선을 이용하여 염색폐수에 함유되어 있는 난분해성 물질을 생물학적으로 분해가 용이한 물질로 전환시키는 한편 전환되어진 물질을 표준 활성슬러지법을 이용하여 생물학적 처리함으로 처리효율을 극대화 하는 전자선이용 염색폐수 정화기술을 개발하기위해 수행하였다. 종합 염색폐수에 1 kGy의 전자선 전처리를 한 후 생물학적 처리를 연계하였을 때 0.1 이상의 생분해도 증가를 나타냈으며 오염부하량 변화에 따른 미생물 활동도역시 안정적이었다. 또한 물벼룩을 이용한 생태독성 평가에서도 2.49의 원폐수 독성이 2.16이하로 감소함을 확인하였다. 난분해성 물질에 대한 전자선 전처리의 효과를 확인하기 위하여 대표적인 난분해성 물질인 TPA 인공폐수를 대상으로 전자선 가속기 전처리한 결과40 % 이상 처리효과를 얻을 수 있었다. 이러한 결과로 보아 전자선 전처리와 생물학적 처리공정의 연계로 보다 효과적인 염색폐수의 처리가 가능할 것으로 사료된다.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.1100-1101
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• 2008

After lamination process, Isc is increased by sheet reflection. This paper presents the electrical output characteristics by back sheet reflection. The experiments was conducted by using single crystalline and multi crystalline PV module. The reflection area of single crystalline PV module is larger than multi one due to the difference of solar cell manufacturing. The experiments show that the increased performance ratio of single crystalline PV module output power is 1.55% rather than that of multi crystalline PV module output power is 1.13%. In addition, it is expected that the output power of single one rather than multi-one is increased by the lower temperature when the PV module is installed outside. The results can be reconsidered by the test material and test process. Back sheet used for humidity prevention makes PV module output power increasing.

• Fisheries and Aquatic Sciences
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• v.23 no.7
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• pp.18.1-18.10
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• 2020

During June 2017, we collected two postflexion larvae (6.01 and 7.56 mm in standard length [SL]) and two juveniles (7.72 and 9.62 mm SL) belonging to Myctophidae in the waters of Jejudo Island. Those four individuals were identified as Diaphus garmani, which had not been reported in Korea. They were distinguished from Benthosema pterotum by melanophores in the abdominal cavity (absent in D. garmani vs. present in B. pterotum) and the development of photophores (developed in D. garmani vs. rudimentary in B. pterotum) when shorter than 10.0 mm SL. Analysis of 16S rRNA sequences showed that the sequences of four individuals matched those of adult D. garmani (Kimura 2-parameter distance: 0.6-0.8%). This is the first record of larvae and juveniles of D. garmani in Korean waters, and we propose a new Korean name, Gar-ma-ni-sat-bi-neul-chi.

• Microbiology and Biotechnology Letters
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• v.24 no.2
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• pp.197-205
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• 1996

The $\beta$-xylosidase was purified 99- fold from the culture supernatant of Pseudo onas sp. CB-33 by ammonium sulfate precipitation, PEI precipita- tion, DEAE-Sephadex column chromatography, Sephadex G-75 gel filtration chromatography and preparative disc gel electrophoresis. Molecular weight of the enzyme was estimated to be 44,000 by SDS polyacrylamide gel electrophoresis. The enzyme has a pH optimum for activity at 7.0 and is stable over pH 6.5-9.0. The optimal temperature of the enzyme was 45$\circ$C, and its enzymatic activity was completely inactivated at 55$\circ$C for 30 min. Km value of the enzyme for p-nitrophenyl-$\beta$-D-xylopyranoside was calculated to be 4.6 mM. The effect of various reagents on the $\beta$-xylosidase activity was investigated. The enzyme activity was completely inhibited by Hg$^{2+}$, Cu$^{2+}$ and Zn$^{2+}$. The $\beta$-xylosidase was inactivated by tryptophan-specific reagent, N-bromosuccinimide and tyrosine-specific reagent, iodine. The enzyme could degrade xylo-oligosaccharides to xylose and the enzyme was competitively inhibited by xylose. The $\beta$-xylosidase and endoxylanase from Psedomonas sp. CB-33 hydrolized xylan synergically. The purified enzyme also showed $\alpha$-L-arabinofuranosidase activity.

• Proceedings of the SAREK Conference
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• 2008.06a
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• pp.194-202
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• 2008

In this study, we investigated the tribology behaviour of two different bearing materials. One of these alloys content is Cu(90)-Sn(10) alloy and is widely used in the automotive industry.The other is Al alloy. This bearing content is Al-Sn-Si-Cu. Therefore, it is required to study on the lublicating characteristics of bearing according to different materials. In this study, compressor bearings made by respectively "PTFE solid lubricant" and "AI alloy with superior load carrying capacity, rubbing and impact endurance", have gone through journal bearing test. Lubrication and abrasion characteristics are evaluated by analyzing the material characteristics of a scroll compressor bearing bush. The AI alloy bearing showed the most excellent lubrication and abrasion characteristics than Cu-Sn alloy under high load condition.

• Journal of the East Asian Society of Dietary Life
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• v.22 no.6
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• pp.895-902
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• 2012

This study was conducted to understand the Ramyun's selection attributes of Korean adults and examine differences in demographic characteristics and meal intake behavior among three groups of samples divided based on the Ramyun's selection attributes. Self-administered questionnaires were completed by 702 adults, and data were subjected to frequency analysis, chi-square analysis, factor analysis, reliability tests, cluster analysis, and discriminant analysis using SPSS. The results of the study were as follows. The Ramyun's selection attributes for Korean adults investigated were food quality (four variables), price (three variables), and company reliability (four variables). Cluster analysis resulted in the subjects being divided into three groups according to their Ramyun's selection attributes, a high-selection group, mid-selection group, and low-selection group. Three groups of samples classified by Ramyun's selection attributes differed based on demographic characteristics (gender and education level) and meal intake behavior (meal numbers, reason for meal, meal time, and meal size).