• 한국언론정보학보
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• 제66권
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• pp.211-241
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• 2014

청년실업률이 높은 신자유주의적 경제구조 하에서, 오늘날의 20대 대학생들은 소위 '스펙 쌓기'라는 노동 시장에 어쩔 수 없이 내몰리고 있다. 이 연구는 한국 대학생 중 절반 정도가 참여하고 있다는 '대외활동'을 중심으로, 창의적 생산과 자율적 선택을 기반으로 한 것처럼 보이는 경제 활동 기회의 제공이 사실은 자본주의 발전의 한 단계로서 디지털 노동의 국면을 보여주고 있음을 탐색한다. 대학교 재학 중 대외활동에 참여한 경험이 있는 학생들을 대상으로 심층 인터뷰를 실시한 결과, 대외활동은 자발적 참여와 문화 지식 생산을 기반으로 하고 있으나 강도 높은 노동이 무임금 혹은 저임금으로 이루어지는 전형적인 디지털 노동의 모습을 보였다. 대외활동은 경험을 시뮬레이션으로, 친구와 동료를 인맥으로, 창의적 생산을 표준화된 상품으로 생산하고 있었으며, 강제된 것은 아니지만 선택할 수밖에 없는 노동의 형태로 대학생들에게 제공되고 있었다. 이러한 노동 과정에서 대학생들의 지식과 정보는 데이터와 상품의 형태로 축적되어 커뮤니케이션 자본주의의 구조를 구축하는 데 역할을 담당하고 있었다.

• 한국문헌정보학회지
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• 제31권1호
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• pp.185-213
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• 1997

본 연구는 정보기술환경의 변화에 따라 대학의 정보관리조직구조를 CIO 조직체제로 변모해 온 과정과 새로운 CIO 조직구조 속에서 대학도서관과 컴퓨터센터의 상호협력관계를 구명하여 이를 국내대학에 적용시킬 수 있는 방안을 제시하였다. 주로 미국대학에서 활용하고 있는 다양한 CIO 조직 모형들의 특성과 이 모형에서 도서관과 컴퓨터센터와의 상호협력관계에 관한 실증적 분석이 이루어졌다.

• 교육시설 논문지
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• 제23권4호
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• pp.3-10
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• 2016

This paper presents the investigation results on the classification of the university campuses. For the classification, we selected the spatial index as the evaluation indicator since the environmental factors and maintenance methods vary from university campus to university campus. For the study, we used eight spatial indices of the 30 national universities. This paper provides the spatial characteristics of different campus types, presents campus classification analysis as a future research approach to campus maintenance, and provides the data for the future study of comparison among universities. The results are as follows. 1) The classification investigation categorized the university campuses into three groups. Type 1 is a large-scale type, located near downtown. Type 2 is a medium-scale type, located at a remote site from downtown. Type 3 is a small-scale type, which is located comparatively near downtown. 2) Type 1 is a large-scale mixed area type, and 13 universities belong to this group. Type 2 is a medium-scale suburban area type, and six universities are in this group. Finally, Type 3 is a small-scale downtown area type, and 11 universities belong to this group.

• Transactions on Electrical and Electronic Materials
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• 제17권3호
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• pp.134-138
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• 2016

The fullerene solar cells are becoming a feasible choice due to the advanced developments in donor materials and improved fabrication techniques of devices. Recently, sufficient optimization and improvements in the processing techniques like incorporation of solvent vapor annealing (SVA) with additives in solvents has become a major cause of prominent improvements in the performance of organic solar cell-based devices . On the other hand, the challenge of reduced open circuit voltage (V_oc) remains. This study presents an approach for significant performance improvement of overall device based on organic small molecular solar cells (SMSCs) by following a two step technique that comprises thermal annealing (TA) and SVA (abbreviated as SVA+TA). In case of exclusive use of SVA, reduction in V_oc can be eliminated in an effective way. The characteristics of charge carriers can be determined by the measurement of transient photo-voltage (TPV) and transient photo-current (TPC) that determines the scope for improvement in the performance of device by two step annealing. The recovery of reduced V_oc is linked with the necessary change in the dynamics of charge that lead to increased overall performance of device. Moreover, SVA and TA complement each other; therefore, two step annealing technique is an appropriate way to simultaneously improve the parameters such as V_oc, fill factor (FF), short circuit current density (J_sc) and PCE of small molecular solar cells.

• 농업과학연구
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• 제25권1호
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• pp.26-32
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• 1998

이용강도에 따른 충남대학교 교내 연습림의 산책로 훼손상태를 조사하기 위하여 3개의 주요 산책로를 선정하였다. 산책로의 훼손상태조사 항목은 산책로폭, 나지노출폭, 최대깊이, 산책로물매였고, 훼손이 발생한 지역에서는 훼손의 형태를 뿌리노출(Root-exposed), 종침식(Deeping), 암석노출(Rock-exposed), 노폭확대 (Widening), 분기(Diverged), 등의 항목을 조사였다. 전체 산책로의 훼손유형을 조사한 결과 노폭확대, 암반노출, 근계노출의 순서로 나타으며, 산책로의 훼손된 지점의 경사도와 최대깊이는 훼손지와 비교하여 뚜렸한 차이를 보이는 것으로 조사되었다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2010년도 정기총회 및 춘계학술발표회
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• pp.6-6
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• 2010

Bacteria of the Bacillus sp. are well known to possess antagonistic activity against numerous plant pathogens. In the present study, 11 Bacillus sp. were isolated from the brackish environment and assayed for antagonistic activity under in vitro and in vivo conditions. Among the 11 isolates tested, 9 isolates effectively inhibited the growth of various plant pathogens, namely Phytophthora capsici, Phytophthora citropthora, Phytophthora citricola, Phytophthora sojae, Colletotricum coccodes, Colletotricum gloeosporioides, Colletotricum acutatum, Rhizoctonia solani, Fusarium solani, Fusarium graminearum, Pyricularia sp. and Monilina sp. The effective isolates were further screened for Phytophthora blight suppression in Capsicum annuum L. under green house conditions. The isolate SB10 exhibited the maximum (72.2%) reduction in disease severity. The antifungal compounds from the isolate were isolated and characterized. The isolated compounds exhibited high thermo stability ($100^{\circ}C$ for 30 min). Matrix-Assisted Laser Desorption Ionization-Time of Flight investigation of the antifungal compounds revealed three lipopeptide complexes, the surfactins, the iturins, and the fengycins.

• 한국자원식물학회지
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• 제30권6호
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• pp.601-611
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• 2017

Hyperlipidemia is an increase in one or more of the plasma lipids, including triglycerides, cholesterol. Ginseng has been used as a valuable tonic and for the treatment of various diseases. The objective of this study was to evaluate the effects of Jinan red ginseng (JRG) water extract on the blood and serum in rabbits with hyperlipidemia induced by poloxamer 407 when supplied in drinking water. JRG treatment was performed for 20 weeks. We evaluated the effects of the JRG treatment on diabetes through hematological and biochemical analysis before and after JRG treatment were performed. Our results indicate that LDL, total cholesterol, and triglycerides were significantly decreased compared prior JRG supply. CRE, BUN, CK and UA levels indicating renal functions are significantly reduced when compared to those prior to the JRG supply. In addition, AST, ALT, ALP, and LDH were significantly reduced indicating hepatoprotective effect. Blood electrolytes deteriorated in HL rabbits were improved when JRG supplied. In conclusion, Biochemical and hematological analysis demonstrate that the JRG is effective to alleviate the hyperlipidemia signs.

• 한국항행학회논문지
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• 제21권5호
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• pp.472-478
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• 2017

본 논문에서는 네트워크 토폴로지 설계방법들(minimum spanning tree와 Dijkstra algorithm)을 사용하여 교통 격자 가로망을 최적화 하는 방안을 다루며, 최소신장트리(minimum spanning tree)에서 직진 교통신호등간의 연동들을 통해 출발지와 목적지간의 지연시간을 최소화 하는 것으로 교통격자 가로망을 최적화한다. 또한 컴퓨터 네트워크에서 사용되어지는 Dijkstra algorithm을 통해 구해진 경로에 따라 차량 운전자들이 그 경로를 준수한다고 가정한다면 격자망에서 교통신호등의 연동을 통해 최적화할 수 있음을 보여준다. 격자 가로망에서의 모의실험결과는 직진 교통신호등의 연동을 통해 망을 가로지는 지연시간을 최소화함을 보여준다.

• Journal of East-Asian Urban History
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• 제1권
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• pp.135-154
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• 2019

This paper reveals the influence of urban and social contexts on the early building layout of Japan Women's College (JWC), one of the first women's colleges in Japan. According to the unpublished plans, the main building and other major structures, at the first stage, formed a three-sided quadrangle with site-wide organization, which was similar to contemporary National colleges. This impressive design, however, disappeared in the final plan. Although the school is the largest in student number and in campus ground size compared to other contemporary private colleges at its establishment, the subdivided land acquired in the private land market forced JWC to give up the organic composition of buildings. Under the framework of donation-based finance, it needed to start construction quickly for further support from the public, which prevented the school from acquiring enough time to adjust land ownership. These constitute the major differences with national schools. The founder's emphasis on the physical exercises, which reflected the public interest in physical strength of mothers in the time of wars, gave preference to securing sufficient open space over the order of buildings.

• Parasites, Hosts and Diseases
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• 제62권2호
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• pp.217-225
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• 2024

This study evaluated the potential repellent and acaricidal effects of 4 essential oils (clove, eucalyptus, lavender, and mint) against the Asian longhorned tick Haemaphysalis longicornis, a vector of various tick-borne diseases in medical and veterinary contexts. Selected for their potential repellent and acaricidal properties, the 4 essential oils were tested on adult and nymph H. longicornis ticks at different concentrations. The experiment assessed mortality rates and repellency, particularly during tick attachment to host skin. There was a significant increase (P<0.05) in tick mortality and repellency scores across all groups. At a 1% concentration, adult tick mortality ranged from 36% to 86%, while nymph mortality ranged from 6% to 97%. Clove oil exhibited notable efficacy, demonstrating high mortality rates of nymphs and adults. Clove oil also displayed strong repellency properties, with a repellency index of 0.05, surpassing those of mint, eucalyptus, and lavender oils. Clove oil showed the highest effectiveness in deterring nonattached adult ticks (90%) and nymphs (95%) when applied to skin. Clove oil was the most effective against adult and nymph ticks, achieving mortality rates of 86% and 97%, respectively, and led to the highest nonattachment rates when applied to skin. In conclusion, essential oils such as clove, eucalyptus, lavender, and mint oils present promising results for tick population control.