醮禮山 소나무林의 山火地의 二次遷移

金源,張根亨,曺英鎬,沈學輔 慶北大學校 1992 論文集 Vol.52 No.-

This report is an investigation of revestagation and secondary succession in the burned area. The forest fire occurred in Mt. Ch'olye on April, 1989. After logging of the burned pine tree, the seedlings of Pinus koraiensis were planted by the replaceable plant in there. The results are summarized as follows : Dorminant species in the first year(B-1) after fire were Miscanthus sinensis var. purpurascens, Carex humilis and Duchesnea chrysantha and those in the second year(B-2) after fire Miscanthus sinensis var. purpurascens, Carex humilis and Lespedeza cyrtobotrya. the biological spectra in both burned and unburned areas were H-D_1-R_5-e type. The indices of similarity showed that B-1 and B-2 was 0.667, B-1 and U 0.526, and B-2 and U 0.500. Degree of succession(DS) was 181, 345, 1090 and species diversity(H) 2.35, 2,73, 2.54 and evenness index(e) 0.61, 0.73, 0.73 and dominance index(C) 0.17, 0.11, 0.15, in B-1 and U site, respectively. Biomass of B-2 site was higher than that of B-1 site. Litter amount(kg/m^2) of burned and unbrurned areas were 0.017 and 0.863. Soil pH, content of total nitrogen, organic matter, organic carbon, and water holding capacity of burned area were higher than those of unburned area while content of available phosphorus, exchangeable pottassium, C/N ratio, and water content of unburned area were higher than those of burned area, respectively.

電流 制御形 PWM 초퍼에 의한 磁器 浮上用 電子石 驅動에 관한 硏究

徐輔爀,全舜鏞,成耆洌 慶北大學校 1991 論文集 Vol.51 No.-

This paper designs a chopper system to drive a magnet of a magnetic levitation system. The chopper system consists of bridge type chopper with two switching devices and two freewheeling diodes. For the given system, harmonic component of source current is analyzed according to its freewheeling type. Also, its operating charateristic is analyzed by simulating the load current waveform according to the type of current controller. From the results of simulation and harmonic analysis, in terms of current controllability, current ripple and switching frequency, load freewheeling type chopper system wish ramp comparison controller is proven to be suitable. Thus the load freewheeling type chopper system with ramp comparison controller is designed and the feasibility of the proposed system is examined through experiment.

측두골에 발생한 골아세포종1예 : A Case Report

강보승,신진근,이원용,김종애 침례병원 2003 浸禮病院學術誌 Vol.19 No.-

영어 교과서에 기술된 문법구조 유형 비교 연구 : 중학교 3학년 교과서를 중심으로

황보근,김정연 大邱大學校 師範大學 附設 敎育硏究所 2010 學校敎育硏究 Vol.5 No.2

The purpose of this study is to analyse the grammatical contents in middle school English textbooks for finding an effective way of grammar instruction to improve communicative ability. For this purpose, five sets of middle school English textbooks, which are authorized by the Ministry of Education according to the 7th Curriculum, were analysed. The results of this analysis are as follows : First, grammar items were presented in separate parts in three sets of textbooks and in the other textbooks, they were presented in various activities to improve communicative competence such as reading, writing, speaking, and listening skill. Second, three sets of textbooks, which grammar items were presented systematically, did not show them in situations or contexts but in simple pattern practices. So, this may lead the learners to concentrate upon mechanical learning of grammatical rules. In two sets of textbooks, grammar items were not presented systematically but, grammar learning can be made meaningful by language form being embedded in contexts. Third, the presentational method of these textbook's language forms is deductive. Currently, the inductive method, which gives students a chance to discover within a context, is preferred, and has proven to be more successful. The fundamental purpose of language is communication and, English education also aims to this. If what we said is ungrammatical, though we can speak English fluently, it's not sufficient to accurate communication. Communicative competence means the ability to speak in target language both fluently and accurately. Grammar is important, if not absolutely essential for improving communicative competence. Therefore, as one competent of communicative competence, grammar is no longer taught in isolation but in relation to reading, listening, writing in one lesson. Communicative activities suitable for a Korean classroom environment should be developed and teachers should provide students with an effective and meaningful grammar instruction. 진정한 의미의 의사소통 능력이란 정확성과 유창성을 겸하는 것이어야 한다. 따라서 언어 교육은 유 창성과 정확성 중 어느 하나만을 선택하여 획득하는 것이 아니라 둘 다를 목표로 하여야 한다. 유창성 과 정확성을 동시에 겸한 진정한 의미의 의사소통 능력을 위해서 문법 능력은 필수라는 것이 많은 연구를 통해 증명되면서 의사소통 능력 향상을 위한 효과적인 문법 교육이 영어 교육의 중요한 이슈가 되었다. 이제는 문법을 가르쳐야 하는가 아닌가 하는 문제가 아니라 의사소통 중심 영어 수업에서 문법 의 역할은 무엇인가, 좀 더 구체적으로 우리나라 교육 현실에 맞추어 어떻게 무엇을 얼마나 가르쳐야 하는가가 논의의 대상이 된 것이다. 이에 본 연구는 의사소통 능력을 향상시키기 위한 효과적인 문법 교육의 방향을 알아보기 위하여 영어 교육의 가장 기본적인 언어 자료인 영어 교과서에서 문법이 차지하는 비중과 문법 내용, 그리고 문법내용의 제시 방법에 대해 연구하고자 한다.

만성 호중구성 백혈병 1례

기장도,박치영,류보열,김태종,모성환,곽재정,문철호,박근홍,박유환,정춘해 朝鮮大學校 附設 醫學硏究所 1996 The Medical Journal of Chosun University Vol.21 No.1

Chronic neutrophilic leukemia is a very rare myeloproliferative disorder which is characterized by severe sustained mature neutrophilic leukocytosis in peripheral blood (PB), hepatosplenomegaly, elevated leukocyte alkaline phosphatase, serum uric acid. serun viatmin B 12 and the bleeding tendency despite normal platelet count and coagulation time, absence of philadelphia chromosome, and the absence of fever or underlying infection or disease sufficient to mimic a leukemoid reaction. We have experienced a 34-years-old male patient with atypical chronic neutrophilic leukemia. On admission, the leukocyte count was 56,860/uL. severe neutrophic leukocytosis with 76% neutrophils and rare immature forms on PB smear. Many neutrophils had toxic granules, and vacuoloes. Leukocyte alkaline phosphatase score was decreased. The cytogenetic study showed Philadelphia chromosome negative with normal karyotype.

119 구급대원의 노인학대 인식, 신고 및 교육 경험에 관한 연구

채명정,윤종근,김보영,Chae, Myeong-Jeong,Yun, Jong-Geun,Kim, Bo-Young 한국응급구조학회 2017 한국응급구조학회지 Vol.21 No.2

Purpose: The study investigated the perception, report, and education of elder abuse in 119 emergency medical technicians (EMTs) in Korea. Methods: A self-reported questionnaire was distributed to 110 EMTs in K city, and 100 answers were collected from June 1 to 10, 2015. The study instrument was perception regarding elder abuse and education inventory developed by Kim and Kim. Data were analyzed using SPSS/WIN 18.0 version. Results: The elder abuse perception score was 3.81 on a Likert 4-point scale. Physical abuse was the most common type, followed by verbal, financial, negligence, and emotional abuse. Most EMTs recognized that is important for the prevention of elder abuse, but most of them had no experience in reporting abuse. A majority of the EMTs had attended an elder abuse program and recognized the importsnce of such program. Conclusion: This study suggests the necessity of more targeted education of elder abuse prevention combined with family counseling methods and practical approach toward awareness of elder abuse.

Harmonic Loss Analysis of an HTS DC Power Cable applied to the Hanlim HVDC System

Bo-Geun Jang(장보근),Jong-Ho Choi(최종호),Sung-Kyu Kim(김성규),Jin-Geun Kim(김진근),Minwon Park(박민원),In-Keun Yu(유인근),Byeongmo Yang(양병모),Hyun-Man Jang(장현만),Chang-Yeol Choi(최창열) 대한전기학회 2013 대한전기학회 학술대회 논문집 Vol.2013 No.7

Stable superhydrophobic films with a gas permeability

Bo Ra Kim,Eun Ji Park,Dae Han Kim,Sang Wook Han,Ju Ha Lee,Soong Yeon Kim,Myung-Geun Jeong,Young Dok Kim 한국진공학회 2015 한국진공학회 학술발표회초록집 Vol.2015 No.2

The Association of Perceived Neighborhood Walkability and Environmental Pollution With Frailty Among Community-dwelling Older Adults in Korean Rural Areas: A Cross-sectional Study

Kim, Mi-Ji,Seo, Sung-Hyo,Seo, Ae-Rim,Kim, Bo-Kyoung,Lee, Gyeong-Ye,Choi, Yeun-Soon,Kim, Jin-Hwan,Kim, Jang-Rak,Kang, Yune-Sik,Jeong, Baek-Geun,Park, Ki-Soo The Korean Society for Preventive Medicine 2019 예방의학회지 Vol.52 No.6

Objectives: The aim of this study was to evaluate the associations of frailty with perceived neighborhood walkability and environmental pollution among community-dwelling older adults in rural areas. Methods: The participants were 808 community-dwelling men and women aged 65 years and older in 2 rural towns. Comprehensive information, including demographics, socioeconomic status, grip strength, polypharmacy, perceived neighborhood environment (specifically, walkability and environmental pollution), and frailty, was collected from participants using face-to-face interviews conducted between June and August 2018. Perceived neighborhood walkability was measured using 20 items that were selected and revised from the Neighborhood Environment Walkability Scale, the Neighborhood Walkability Checklist from the National Heart Foundation of Australia, and the Physical Activity Neighborhood Environment Survey. The Kaigo-Yobo Checklist was used to assess participants' frailty. Results: The overall prevalence of frailty in this community-dwelling population was 35.5%. Sex, age, cohabitation status, educational attainment, employment status, grip strength, and polypharmacy were significantly associated with frailty. In the logistic regression analysis, frailty was associated with low perceived neighborhood walkability (adjusted odds ratio [aOR], 0.881; 95% confidence interval [CI], 0.833 to 0.932; p<0.001) and severe perceived neighborhood environmental pollution (aOR, 1.052; 95% CI, 1.017 to 1.087; p=0.003) after adjusting for sex, age, cohabitation status, educational attainment, employment status, monthly income, grip strength, and polypharmacy. Conclusions: More studies are warranted to establish causal relationships between walkability and environmental pollution and frailty.

Visfatin Stimulates Proliferation of MCF-7 Human Breast Cancer Cells

Kim, Jae-Geun,Kim, Eun-Ok,Jeong, Bo-Ra,Min, Young-Joo,Park, Jeong-Woo,Kim, Eun-Sook,NamGoong, Il-Seong,Kim, Young-Il,Lee, Byung-Ju Korean Society for Molecular and Cellular Biology 2010 Molecules and cells Vol.30 No.4

Obesity, a condition characterized by increased fat content and altered secretion of adipokines, is a risk factor for postmenopausal breast cancer. Visfatin has recently been established as a novel adipokine that is highly enriched in visceral fat. Here we report that visfatin regulated proliferation of MCF-7 human breast cancer cells. Exogenous administration of recombinant visfatin increased cell proliferation and DNA synthesis rate in MCF-7 cells. Furthermore, visfatin activated G1-S phase cell cycle progression by upregulation of cyclin D1 and cdk2 expression. Visfatin also increased the expression of matrix metalloproteinases 2, matrix metalloproteinases 9, and vascular endothelial growth factor genes, suggesting that it may function in metastasis and angiogenesis of breast cancer. Taken together, these findings suggest that visfatin plays an important role in breast cancer progression.