• Title/Summary/Keyword: Lee Sam

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Molecular Characterization of a Bombyx mori LIM protein

  • Hwang, Jae-Sam;Go, Hyun-Jeong;Youn, Eun-Young;Goo, Tae-Won;Choi, Kwang-Ho;Kim, Ik-Soo;Ahn, Mi-Young;Lee, Pyung-Jae;Kang, Seok-Woo;Seong, Su-Il
    • Proceedings of the Korean Society of Sericultural Science Conference
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    • 2004.04a
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    • pp.60-60
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    • 2004
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Current status and prospect of the sericulture industry in gyeongsangbukdo (경상북도 양잠산업의 현황과 전망)

  • Lee, Hi-Su;Gwak, Byeong-Sam;Kim, Ki-Jae
    • Journal of Sericultural and Entomological Science
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    • v.55 no.1
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    • pp.6-10
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    • 2019
  • Current status and prospect of sericultural industry in Gyeonsangbukdo were examined through history and business of institute, sericultural status of Gyeongsangbukdo, purchasing results, and prospects of Gyeongsangbukdo. Silkworm & Insect Business Center was established in 1911 as Sericultural training institute. Original silkworm 400 case, and Nuedongchunghacho inoculant 100 box will be spreaded. Sericultural farmer is 339 and 41.5 percent on the whole country in 2016. Ten thousand kilogram of cocoon was purchased by institute in 2016. Farm income was increased to 13.7 million won and purchased cocoon 9,875 kg in 2017. To activate sericulture Gyeongsangbukdo will support Hanbok Institute in 2019 and make sericultural complex.

A Study on Business Support System For Small Enterprises Using CRM (CRM을 활용한 중소기업 지원시스템에 관한 연구)

  • Jin, Byoung-Sam;Lee, Sang-Hwan;Moon, Young-Su;Choi, Jin-Young;Shin, Ki-Jeong
    • Annual Conference of KIPS
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    • 2004.05a
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    • pp.1581-1584
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    • 2004
  • 정부와 공공기관은 전자정부 및 정보화사업 등을 통해 구축한 시스템을 통해 각종 정보와 인터넷 지원서비스를 기업에 제공하고 있다. 공공부분의 정보시스템 구축과 웹을 통한 서비스는 일반화 되어 있으며, 이제 정보시스템의 효율성과 고객 활용도 및 만족도를 높이기 위해 다양한 IT 기술의 적용을 고민하고 있다. 본 논문에서는 중소기업 지원시스템에서 CRM(Customer Relationship Management)을 활용한 기업중심의 On-Off Line 통합 기업지원 모델을 제시한다.

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Endoscopic features aiding the diagnosis of gastric mucosa-associated lymphoid tissue lymphoma

  • Park, Byung Sam;Lee, Si Hyung
    • Journal of Yeungnam Medical Science
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    • v.36 no.2
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    • pp.85-91
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    • 2019
  • The incidence of gastric mucosa-associated lymphoid tissue (MALT) lymphoma is increasing worldwide, but the diagnosis is difficult. Most patients are asymptomatic or complain of nonspecific gastrointestinal symptoms. As the endoscopic features of gastric MALT lymphoma are variable and nonspecific, the possibility of this condition may be overlooked during esophagogastroduodenoscopy, and it remain undiagnosed. Therefore, this condition needs to be considered when an abnormal mucosa is observed during this procedure. Biopsy performed during endoscopy is the primary diagnostic test, but false negative results are possible; large numbers of samples should be collected from both normal and abnormal mucosae. Endoscopic ultrasonography is useful to assess the depth of invasion and to predict the treatment response. After treatment, follow-up tests are required every 3 months until complete remission is achieved, and annually thereafter. Early diagnosis of gastric MALT lymphoma is difficult, and its diagnosis and follow-up require wide experience and competent endoscopic technique.

A Study on the Leakage Current Detection System of Lighting Installation Using IoT Technology (IoT를 기반한 조명설비 누전사고 감지시스템에 관한 연구)

  • Park, Kun-Young;Kwak, Dong-Kurl;Lee, Bong-Seob;Kim, Choon-Sam;Jeon, Ho-Jin
    • Proceedings of the KIPE Conference
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    • 2018.11a
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    • pp.7-8
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    • 2018
  • In this study, we develop a leakage current detection device of lighting installation. The reed switch using in proposed device is activated when the leakage current is generated. We also design a GUI system of a management computer using LabVIEW and administrator's mobile phone app based on IoT. As results, this study is to build an IoT convergence system and it aims to protect people and property by coping with leakage current fault in real time.

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Three Newly Recorded Species of the Genus Dohrniphora (Diptera: Phoridae) from Korea

  • Lee, Jun-Ho;Kim, Sam-Kyu
    • Animal Systematics, Evolution and Diversity
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    • v.36 no.4
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    • pp.296-303
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    • 2020
  • Three species of the genus Dohrniphora, viz., D. cornuta, D. malaysiae, and D. prescherweberae were newly recorded from Korea. These newly recorded species can be easily identified by the characteristic that inner face of male hind femur equipped with a group of peg-like stout setae on basal sensory area. Peg-like setae are arranged perpendicularly in D. cornuta whereas linear in D. malaysiae and somewhat arched in D. prescherweberae. Also, concave area near the peg-like setae is also well developed in male which is smooth in D. cornuta, on the other hand, there is well developed distal carina in D. malaysiae and with groups of microtrichia in D. prescherweberae. In this study, detailed descriptions with photographs of three newly recorded species and a key to males of all Korean Dohrniphora species are provided.

Simultaneous determination of saikosaponin derivatives in Bupleurum falcatum by HPLC-ELSD analysis using different extraction methods

  • Choi, Jungwon;Kim, Juree;Kang, Sam Sik;Lee, Sanghyun
    • Journal of Applied Biological Chemistry
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    • v.64 no.1
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    • pp.57-61
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    • 2021
  • Saikosaponin derivatives such as saikosaponins A, B1, B2, B3, B4, C, and D present in Bupleurum falcatum were analyzed by a high performance liquid chromatograph equipped with an evaporative light scattering detector, using different extraction solvents (water and 70% ethanol). The samples were injected into a YMC Pack Pro C18 column and separated using a gradient elution system with a mobile phase composed of acetonitrile and water at a flow rate of 1.1 mL/min. The content of saikosaponin derivatives was higher in 70% ethanol extract than in water extract. This study provides an efficient analytical method for determining the optimal conditions for extraction of saikosaponin derivatives, which can be used as a basis for development of functional foods and pharmaceutical products from B. falcatum.

Simultaneous determination of phytochemical constituents in Paeonia lactiflora extracts using the HPLC-UV method

  • Kim, Juree;Choi, Jungwon;Kang, Sam Sik;Lee, Sanghyun
    • Journal of Applied Biological Chemistry
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    • v.64 no.1
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    • pp.13-17
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    • 2021
  • Qantitative analysis of six compounds: (+)-catechin, benzoic acid, gallic acid methyl ester, paeonol, paeoniflorin, and albiflorin from Paeonia lactiflora extracts was performed using high-performance liquid chromatography and an ultraviolet (UV) detector, following different extraction methods. A reverse-phase column was used in a gradient elution system, and UV detection was performed at 280 nm. The results showed that the quantity of paeoniflorin was the highest in ethanol and water extracts (73.89 and 57.87 mg/g, respectively) among the six compounds. This study contributes a good analysis method for the contents of P. lactiflora and would be propitious for developing medicines and functional foods.

Study on the Sister Chromatid Exchange Inducibility in Chinese Hamster Don Cell by Metal Compounds in Work Enviroment

  • Seo, Kwang-Seok;Lee, Chong-Sam
    • Journal of Environmental Health Sciences
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    • v.22 no.1
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    • pp.91-98
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    • 1996
  • 산업장이나 생활환경에서 접하기 쉬운 수용성 염화물을 중심으로 19개 원소 24종의 금속화합물이 Chinese Hamster Don 세포에 있어서의 sister chromatid exchange(SCE) 출현빈도에 미치는 영향을 조사하였다. Chinese Hamster Don 세포에 대한 자매염색분체 교환출현빈도의 증가가 $CrO_3, K_2CrO_4, K_2Cr_2O_7, MnCl_2, K_2SeO_3, CH_3HgCl$ (p<0.01), $CoCl_2, Na_2HAsO_4, HgCl_2$ (p<0.05) 9종의 금속화합물에서 나타났으며, dose-response relationships이 현저한 금속화합물은 6가 크로화합물과 $K_2SeO_3$이었다.

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