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      • KCI우수등재

        어장건강도 평가지수를이용한 진해만 내 굴양식장 건강도 변동평가

        고영신,이동헌 한국해양환경·에너지학회 2024 한국해양환경·에너지학회지 Vol.27 No.2

        우리나라의 양식어장환경은 지속적인 수질관리대책의 시행으로 수질이 점차 개선되는 추세이다. 그럼에도 불구하고, 2010년 이후 연간 수하식 패류(굴) 생산량은 감소하고 있는 실정이다. 따라서 지속적인 양식생물 생산성 향상을 위해서 어장건강도관점에서 어장진단 및 평가가 필요하다. 본 연구에서 수하식패류양식장에서 어장건강도 지수를 효과적으로구축하기 위해, 굴양식장(진해만) 내 수질(영양염류, Chl-a, 기초생산력, 용존산소)/퇴적질(총유기탄소, 총황, 산휘발성황화물, 중금속, 다환방향족 탄화수소), 이상재해(유해조류대번성, 빈산소수괴 발생, 고/저온 발생, 저염분 발생), 식품안전(대장균, 중금속, 다환방향족 탄화수소) 자료를 확보하였다. 더욱이, 최근 5년간 수하식 패류어장 모니터링 자료를 기반하여 기존의 어장건강도 평가 지표 기준을 재설정 하였다. 특히, 주성분분석 결과를 토대로 수하식 양식장 내 직, 간접적으로 영향을 미치는 핵심지표의 가중치 설정을 통해 기존 어장건강도 평가 방법보다 발전된 결과를 도출하였다. 마지막으로, 빈산소수괴 및 부영양화 발생을 차별적으로 설정하여어장건강도 지수간의 합리적인 상호작용을 입증하였다. 따라서, 본 연구의 결과는 양식 환경의 체계적인 관리와 양식 운영의 지속 가능한 성장에 대한 정보를 제공할 수 있을 것으로 생각된다. In Korean aquaculture environments, the patterns of water quality were gradually improved by continuous management approaches. Nevertheless, the one of aquaculture systems (e.g., shellfish) reported their decreased production after 2010. As aspect of the improvement of shellfish productivity, suitable strategy can require systematical diagnosis/evaluation involved in the aquaculture health. In the shellfish aquacultures (Jinhae Bay), we investigated the water quality (nutrients, Chl-a, primary production, dissolved oxygen), sediment quality (total organic carbon, total sulfur, acid volatile sulfide, heavy metal, polycyclic aromatic hydrocarbon), abnormal disaster (harmful algae bloom, hypoxia, high/low temperature, low salinity), food safety (Escherichia coli, heavy metal, polycyclic aromatic hydrocarbon) to effectively establish the evaluation index of aquaculture health. In addition, we intended to re-establish the evaluation cretia of aquaculture health by using aquaculture monitoring data (hanging shellfish data during 5 years). Especially, based on principal component analysis, our results provided more developed strategies of aquaculture health index by adding the weighed values of key components within shellfish aquacultures. Finally, these approaches were simulated along the expected scenarios such as hypoxia and eutrophication, demonstrating reasonable interaction among aquaculture health parameters. Thus, our approaches may provide valuable insights for systematic management of aquaculture environmental and sustainable growth of aquaculture operation.

      • SCOPUSKCI등재

        흑연에 황산을 Intercalation 시킬 때의 Mechanism 규명 (II. 화학적 방법에 의한 Graphite Salts의 중간상에 관한 연구)

        고영신 한국세라믹학회 1988 한국세라믹학회지 Vol.25 No.4

        This thesis is 2nd thesis from "Mechanism of Intercalation Compounds in Graphite with Hydrogen sulfate(J. Korea Cer. Soc. Vol. 22. No.6, 1985). We have oxidized natural Graphite flakes(0.1~0.2mm., Kropfm hl passau in Deutchland. S40) with a solution of CrO3 in H2SO4. Whilst persulfate ions were intercalated, too, below 7$^{\circ}C$, no evidence for intercalation of a peroxo compound was found at 22$^{\circ}C$. The reaction was interrupted after various times by filtering and washing with concentrated H2SO4. X-ray diffraction showed that the 2nd stage compound had already been formed after 2 minutes. We could only follow further oxidation to the blue stage compound which was completed after 35 minutes. We have found six distinct intermediate stage between 2nd stage and 1 stage. Experiments are described on the formation of intermediate stage color and X-ray diffraction analysis.ysis.

      • KCI등재

        시사만화의 정치적 의제 설정과 프레임 구성에 대한 연구

        고영신 사단법인 언론과 사회 2008 언론과 사회 Vol.16 No.2

        The purpose of this study is to examine one-cut satirical cartoons in central dailies during the 17th presidential election campaign to perform empirical investigation of how editorial cartoons are constructing political meanings in the election situation. For this purpose, this study set four themes: agendas of editorial cartoons, frequency of candidate appearance and tendency of describing candidates in terms of agendas, characteristics of thematic frames for editorial cartoons, and differences by dailies. The newspaper publishing companies selected for analysis were Kyunghyang Newspaper, Kookmin Ilbo, Seoul Newspaper, Chosun Ilbo, Hankook Ilbo, and Hangyeore Newspaper in which one-cut editorial cartoon was inserted on the regular basis. During the period of the analysis, editorial cartoons run in the six kinds of newspapers were all collected for quantitative and qualitative analyses. As a result, first, editorial cartoons in the press was an important means of communication to abstract characters, images, electorial campaigns, and issues of presidential candidates through brief metaphorical expressions and to provide readers with a frame containing a certain theme. Second, editorial cartoons served as a mechanism to set an externally similar agenda, form a thematic frame, and test and monitor power (candidates) like general news reports in the electoral situation. Third, candidates in the running primarily appeared in editorial cartoons and there were mainly negative descriptions both in conservative and progressive ones in terms of tendency for description. Fourth, a certain candidate was strongly correlated with intimate relations based on political inclination and ideological homogeneity of individual dailies, which was found to affect the intensity of criticism of candidates, attitudes in description, and frequency of candidate appearance. In conclusion, the Korean press recovered freedom of coverage at the advanced-nation level, but still failing to be freed completely from the regressive practice of close relationship or symbiotic relations between power and the press. 본 연구는 17대 대선기간 중 중앙 일간신문에 게재된 한 컷짜리 신문만평을 중심으로 시사만화가 선거 국면에서 어떻게 정치적 의제를 설정했는지를 실증적으로 규명하는 데 목적이 있다 이에 따라 본 연구는 시사만화의 의제, 의제별 후보자 등장빈도 및 후보자에 대한 묘사성향, 시사만화의 주제프레임 및 언론사별 차이점 등 4개의 연구 문제를 설정했다. 분석대상 신문사는 한 컷짜리 시사만화를 게재하고 있는 <경향신문>, <국민일보>, <서울신문>, <조선일보>, <한국일보>, <한겨레>를 선정했다. 분석대상 기간 중 6개 신문에 게재된 만평을 모두 수집해 양적, 질적 분석을 실시했다. 연구결과 첫째, 우리 언론의 시사만화는 간결한 은유적 표현을 통해 대선후보의 캐릭터와 이미지, 선거캠페인과 이슈를 축약하고, 특정한 주제를 담은 프레임을 독자들에게 제공하는 중요한 정치커뮤니케이션 수단이 되고 있는 것으로 나타났다. 둘째, 시사만화가 선거 국면에서 외관상 유사한 의제를 설정하고 주제프레임을 구성, 일반뉴스보도와 마찬가지로 권력 (후보자)에 대한 검증과 감시기제로 작용했다. 셋째, 당선 가능성이 높은 후보가 주로 시사만화에 등장했으며, 후보자 묘사성향은 보수, 진보성 향의 신문을 불문하고 부정묘사가 주류를 이뤘다. 넷째, 특정후보와 개별 언론사의 정치적 성향, 이념적 동질성을 바탕으로 한 친소관계 간에는 밀접한 상관관계가 있으며 이것이 후보자에 대한 비판의 강도 묘사태도 후보자 등장빈도 등에 영향을 미친 것으로 나타났다. 결론적으로 우리 언론이 선진국 수준의 취재보도 자유를 회복했지만 여전히 권언유착 내지 공생관계라는 퇴행적 관행에서 완전히 탈피하지 못한 것으로 밝혀졌다.

      • KCI등재

        Cytomorphological Findings and Histological Correlation of Low-Grade Cribriform Cystadenocarcinoma of Salivary Gland in Fine-Needle Aspiration: A Case Study

        고영신,구자승 대한병리학회 2013 Journal of Pathology and Translational Medicine Vol.47 No.6

        Low-grade cribriform cystadenocarcinoma (LGCCC) of the salivary gland is a rare tumor. We report the cytologic features and histologic correlation of a patient with LGCCC. A 57-year-old man had a hardly palpable, nontender mass in the right cheek area followed over nine months. Radiologic analysis revealed a 1.2 cm multiseptated, cystic, solid nodule in an anterior superficial lobe of the right parotid gland. Fine-needle aspiration cytology revealed many irregular overlapping sheets or clusters of ductal epithelial cells forming solid, pseudopapillary, and cribriform architectures. Nuclei of the tumor cells revealed inconspicuous atypia with minimal size variation. On the basis of these findings, we confirmed a diagnosis of ductal epithelial proliferative lesion, favoring neoplasm, with uncertain malignant potential. Tumor excision was performed, revealing a tiny multicystic nodule (0.7 cm). Histopathologically, this tumor showed the characteristic morphology of LGCCC. This is the first report of cytomorphological findings of LGCCC in Korea.

      • SCOPUSKCI등재

        흑연에 황산을 Intercalation 시킬때의 Mechanism 규명 (I. 전기적 산화방법에 의한 Graphite Salts의 중간상에 관한 연구)

        고영신,한경석,이풍헌 한국세라믹학회 1985 한국세라믹학회지 Vol.22 No.6

        Graphite has been oxidized to graphite hydrogen sulfate in concentrated $H_2SO_4$. Anodic oxidation and chemical oxidation of graphite in $H_2SO_4$ generally leads to the formation of intercalation compounds of the ionic salt type through incorporation of $H_2SO_4^-$ions and $H_2SO_4$ molecules into the graphite. Several other reactions also accur at various points of the charging cycle. But there is no satisfactory kinetics and mechanism of intercalationin graphite. We have studied them with anodic oxidation and chemical oxidation. We found six distinct phenomena between 2nd stage and 1st stage in chemical oxidation. We examined them in detail by the following in the measurements electrical oxidation. X-ray diffractions UV-Vis spectroscopy density measurements. We could obtained a equation for kinetic according to the reaction rate from this results and mechanism of intercalation between 2nd stage and 1st stage with hydrogen sulfate in graphite. Three thesis were written for the mechanism of intercalation compounds in graphite with hydrogen sulfate ; first thesis is anodic oxidation second thesis is chemical oxidation and definition of transit phase between 2nd etc the third thesis is the kinetic mechanism of intercalation compounds in graphite with Hydrogen sulfate. This thesis is the first paper among three thesis as anodic oxidation.

      • 한강변 점토에 포함된 SiO_2 함량분석에 관한 연구 : 혼합물의 분리(4-2)단원과 관련하여 On the unit of "The Separation of Compound" (4-2)

        高永信 서울교육대학교 과학교육연구소 1990 科學과 數學敎育 論文集 Vol.16 No.-

        本 硏究는 화학 분석 시험이라는 점토 성질 조사 시험방법을 사용하여 도자기, 내화물 뿐만아니라, 여러가지 신소재의 원료로 이용되는 점토를 성분 분석해 냄으로써 점토내의 H_2O, SiO_2, Al_2O_3 및 기타원소, 유기물, 불순물의 함량을 알아보고, 이 실험의 과정을 통해 얻은 지식을 '혼합물의 분리' 단원에서 효과적으로 活用할 수 있는 방법을 提示해 보도록 하겠다. This study aim's at investigating the content ratio of H_2O, SiO_2, impurities, organic matters, Al_2O_3, and some other element included in clay, which is widely used as the raw material of the ceramic ware, fireproof material and other new materials nowadays, through the chemical analysis of the property of clay and then applying the results of the study to the science education of "the separation of compound" in the second term of fourth grade in elementary school.

      • KCI등재

        Prognostic Implication of Programmed Death-1-Positive Tumor-infiltrating Lymphocytes in Diffuse Large B-Cell Lymphoma

        고영신,오영하,박찬금,김욱연,한혜승,임소덕,황태숙,김완섭 대한병리학회 2011 Journal of Pathology and Translational Medicine Vol.45 No.6

        Background: Programmed death-1 (PD-1) is physiologically expressed by germinal center-asso-ciated helper T-cells and has an inhibitory effect on T-cell activity. Methods: We examined 63 cas¬es of diffuse large B-cell lymphoma (DLBCL) and determined the number of PD-1-positive helper T-cells in a representative tumor area after immunohistochemical staining using a monoclonal an¬tibody against PD-1. The PD-1-positive cells were counted in 3 high-power fields (HPFs; 400×). Results: Patients were divided into 2 groups: one with a high number of PD-1-positive cells (>20/HPF, n=33) and one with a low number of PD-1-positive cells (≤20/HPF, n=30). The for¬mer group showed decreased overall survival, but at a statistically non-significant level (p=0.073). A high number of PD-1-positive cells was more common in patients at an advanced clinical stage and with high international prognostic index score (p=0.025 and p=0.026, respectively). The number of extranodal sites also somewhat correlated with the PD-1 staining status (p=0.071). However, the number of PD-1-positive cells was not associated with patient age, serum lactate dehydrogenase level, and Eastern Cooperative Oncology Group performance score. Conclusions: The high number of PD-1-positive cells might be associated with an unfavorable outcome in DL¬BCL patients.

      • VTS 관련법규 보완의 필요성

        고영신,이남열,김현성 한국항해항만학회 2011 한국항해항만학회 학술대회논문집 Vol.2011 No.춘계

        해상교통관제제도는 공익을 위하여 행하는 능동적이고 적극적인 국가작용으로, 법률에 근거하여 시행하여야 한다. 하지만, 근거가 되는 법률이 부재하거나 미흡하여 여러 문제점들이 발생하고 있다. 본 논문에서는 이러한 미흡한 법률과 이로 인한 문제점들을 고찰하고 개선방안을 마련하고자 한다.

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