다중시기 위성자료 기반 낙동강 하구 지역 갯벌 면적 분석을 통한 블루카본 저장량 변화 평가

김민주,박정우,현창욱,Minju Kim,Jeongwoo Park,Chang-Uk Hyun 대한원격탐사학회 2024 大韓遠隔探査學會誌 Vol.40 No.2

지구 온난화는 대기 중 온실가스 농도 증가에 기인하여 전 세계적으로 이상기후를 유발하고 생태계와 인류에게 부정적인 영향을 미치고 있다. 이에 대응하여 각국은 다양한 방법으로 온실가스 감축을 시도하고 있으며, 해안 생태계가 흡수하는 탄소인 블루카본(blue carbon)에 대한 관심도 증가하고 있다. 블루카본은 그린카본(green carbon) 대비 탄소흡수 속도가 최대 50배 빠른 것으로 알려져 있어 기후 변화 대응에 있어 중요한 역할을 한다. 특히, 세계 5대 갯벌 중 하나인 대한민국의 갯벌은 생물 종 다양성이 풍부하고 뛰어난 탄소흡수원으로 평가되고 있다. 블루카본 관련 기존 연구에서는 갯벌의 탄소 저장량 및 연간 탄소 흡수량에 초점을 맞추었으나 위성자료를 활용하여 직접 갯벌의 면적 변화를 탐지하고 이를 탄소 저장량과 연계한 사례는 부족하다. 이에 본 연구에서는 다중시기 고해상도 위성자료인 PlanetScope 및 RapidEye 자료에 Direct Difference Water Index를 적용하여 연구지역인 낙동강 하구 갯벌의 면적 및 변화를 2013년부터 2023년 사이의 6개 시기에 대해 장기적으로 분석하고 시기별 탄소 저장량을 산정하였다. 분석 결과 연구지역 내 갯벌 면적은 조위 기준이 상이한 2013년 시기를 제외하였을 때 최소 약 9.38 km² (2022년), 최대 약 9.89 km² (2021년)로 연간 최대 약 5.4%가 변화하였으며 탄소 저장량은 최소 약 30,230.0 Mg C, 최대 31,893.7 Mg C로 산정되었다. Global warming is causing abnormal climates worldwide due to the increase in greenhouse gas concentrations in the atmosphere, negatively affecting ecosystems and humanity. In response, various countries are attempting to reduce greenhouse gas emissions in numerous ways, and interest in blue carbon, carbon absorbed by coastal ecosystems, is increasing. Known to absorb carbon up to 50 times faster than green carbon, blue carbon plays a vital role in responding to climate change. Particularly, the tidal flats of South Korea, one of the world's five largest tidal flats, are valued for their rich biodiversity and exceptional carbon absorption capabilities. While previous studies on blue carbon have focused on the carbon storage and annual carbon absorption rates of tidal flats, there is a lack of research linking tidal flat area changes detected using satellite data to carbon storage. This study applied the direct difference water index to high-resolution satellite data from PlanetScope and RapidEye to analyze the area and changes of the Nakdong River estuary tidal flats over six periods between 2013 and 2023, estimating the carbon storage for each period. The analysis showed that excluding the period in 2013 with a different tidal condition, the tidal flat area changed by up to approximately 5.4% annually, ranging from about 9.38 km² (in 2022) to about 9.89 km² (in 2021), with carbon storage estimated between approximately 30,230.0 Mg C and 31,893.7 Mg C.

시공간 지각 단서에 의한 단일체(單一體)의 가변적 형태 변화

신석규(Seok Kyu Shin),장욱선(Uk Sun Chang) 한국디자인문화학회 2010 한국디자인문화학회지 Vol.16 No.2

존재하는 모든 사물과 현상은 시간의 흐름과 무한한 공간의 틀 속에서 운행한다. 사물의 변화를 느끼게 되는 것은 시간과 공간이 있기 때문이다. 시간과 공간은 존재를 증명하는 기본적 개념으로 인식의 태도는 고정된 정형성의 관점을 벗어난다. 본 연구는 시공간 지각 단서를 기초로 하여 아이덴티티 디자인의 시스템 운용 체계를 중심으로 심볼마크가 상징하고 있는 정체성의 근원을 밝힘으로써 다양하게 응용되고 있는 단일체의 가변적 형태들의 실효성을 검증하고자 했다. 시공간 지각 단서는 선행연구인 "2차원의 평면에서 작용하는 시공간의 지각적 무브망"에서 제시한 시간의 연속체-류, 수, 질, 공간의 확장세-실, 허, 장, 시공복합체의 유기-합, 초, 재로 구분한 분류 체계를 근간으로 설명했으며, 단일체의 가변적 형태변화는 본질적 대상, 즉 단일체의 확장에 의한 것으로 원래의 상태로 되돌아갈 수 있는 상태, 또는 처음의 그 상태로서 원래의 대상물을 지칭하는 것을 의미한다. 이러한 가변적 형태변화에 대한 분류와 설명을 위해 압축, 변이, 파생의 세 가지 대분류를 전제하고 각각의 개념을 재정립하였다. 또한, 단일체의 응용방법에 따라 조형적, 역동적, 조직적인 부분으로 구분하여 연구의 체계성을 확보했다. 단일체의 가변적 형태 변화는 첫째, 결합과 통합의 과정을 거치면서 핵심만을 나타내게 되는 방식으로 설명되는 조형적 형태압축, 둘째, 하나의 단일체가 변화해 가는 일련의 과정 및 변화된 형태의 역동적 형태변이, 셋째, 추가적인 개념이나 시각적 형태가 부가되거나 결합의 과정을 거쳐 새로운 형태가 나타나는 조직적 형태파생으로 설명할 수 있다. 시공간 지각 단서에 의해 지각되는 심볼들이 단순성과 조형성만을 고려한 평면적인 심볼들과 시각이미지의 지각과 인지에서 상반될 수 있는 논리적 근거는 단일체의 가변적인 형태 변화에 있으며 이는 시지각의 차원에서 더 역동적이고 진취적인 유기체로서의 생동감있는 이미지를 전달할 수 있다. 단일체의 가변적 형태 변화를 추구한 아이덴티티 디자인 시스템은 다변화하는 뉴 미디어 시대에서 커뮤니케이션의 변화된 흐름을 주도하는 새로운 시각적 정체성을 보여준다. 상징의 근원적 체계화, 시스템의 창조적 확장성과 미디어에 대응한 운용체계로 인해 기업이미지와 브랜드 이미지 체계를 구축하는 데 있어 고도의 전략적 수단으로 활용될 수 있으며 미래 아이덴티티 디자인의 가치를 한 단계 상승시킬 수 있는 새로운 개발 시스템이 될 수 있을 것이다. All existing objects run within a frame of flowing time and infinite space. Changes in objects are sensed due to the existence of time and space. Space and time are the basic concepts that prove existence, and the manner of awareness breaks away from fixed and formulated perceptions. This study aims to verify the effectiveness of diversely applied variable forms of monolithic objects by discovering the source of the identity symbolized by symbol marks, based on space time perception clues and centered around design systems` operating systems. Space time perception clues were explained on the basis of the `continuum of time - stream, numbers, origin, expansion of space-fullness, voidness, field, Organism of Time & Space agglomeration-convergence, transcendental, existence` classification system as proposed in the precedent study, "Perceptional Mouvement of Time and Space Act on Two-Dimensional Plane". Monolithic object variable form change is caused by the expansion of the fundamental object, the monolithic object, and means the designation of the original object as the condition that allows it to return to its original state, or its original condition. To classify and explain such variable form change, 3 large classification of Compression, Variation, and Derivation were assumed, and each concept was reestablished. Also, the single bodies were classified into formative, dynamic, or systematic according to application methods in order to secure the study`s systemicity. Monolithic object variable form change can be explained in the following three ways: 1. Formative form compression, explained by the method of only the cores being revealed following a process of fusion and integration 2. A series of monolithic object change processes and the dynamic form variations the changed form undergoes 3. Systematic form derivation in which a new form emerges as a result of additional concepts and visual forms being added or fusion processes. The flat symbols that only take into account the simplicity and formativeness of symbols perceived by space time perception clues, and the theoretical basis that can conflict with visual image perception and recognition, are in monolithic object variable form change. This is an organism that is more dynamic and progressive compared to that in a dimension of visual perception, and can deliver life-like images.

요추 추간판탈출증 수술 후 임상 증상의 회복

신병준,김준범,조영훈,권희,서유성,김연일,나수균,최창욱 대한척추외과학회 1997 대한척추외과학회지 Vol.4 No.2

Study Design : The authors retrospectively analysed the recovery of clinical symptoms after surgical treatment of lumbar HIVD. Objectives : To investigate the incidence of clinical symptoms, the recovery rate and time after surgical treatment and the difference between L4-5 and L5-S1 lesion. Summary of Literature Review : There are many reports concerning the clinical result of surgical treatment for the HIVD. They usually describe the result as excellent, good, fair and poor. We can't get any information about the recovery rate and recovery time of each clinical symptom from the reports. Materials and Methods : Thirty-eight patients were treated by one level open discectomy from march 1991 to december 1995. The clinical symptoms and signs including SLR, motor deficit, sensory deficit, change of DTR and severity of radiating pain were periodically followed up on the predesigned protocol, Results : In preoperative examination, SLR was positive in 82%, motor deficit in 76%, sensory deficit in 74%, DTR change in 50%, and radiating pain in 100%. The recovery rate of SLR was 96.8%, motor deficit ; 93.6%, sensory deficit ; 78.6%, DTR change ; 21 % and radiating pain ; 84.2%. The average recovery time of SLR was 3.4 months, motor deficit ; 1.9 months, sensory deficit ; 5.3 months, DTR change ; 4.1 months and radiating pain ; 3.2 months. Motor and sensory deficit was more frequent in L4-5 lesion but DTR change was usually noted in L5-S] lesion. The recovery rate and time showed no great difference between the two level. Conclusions : The recovery rate was higher in SLR, motor deficit and radiating pain rather than sensory deficit and DTR change. The recovery time was fastest in radiating pain but variable nature was noted in sensory deficit. Above results may be helpful to explain the prognosis of the lumbar HIVD.

출산에 따른 그레이브스병의 재발 및 관련이자

임창훈,최현아,한승석,김해성,이창욱,정호연,한기옥,장학철,박원근,윤현구,한인권 대한내분비학회 2002 Endocrinology and metabolism Vol.17 No.2

Background: Pregnancy affects the course of Graves' Disease (GD), and patients who initially maintain euthyroid function into their middle trimester with minimum doses of antithyroid drugs become exacerbated after delivery. Even patients who are completely cured, requiring no treatment during pregnancy, can relapse after delivery. In this study, we examined the postpartum changes in the thyroid functions of patients with GD, and attempted to determine the factors contributing to these changes. Methods: The study subjects were recruited from pregnant women visiting our outpatient clinic for routine prenatal evaluations. 45 women previously diagnosed with GD, who had been treated and cured with hyperthyroidism, and were no longer taking any thyroid medications, were evaluated for 1 year post delivery. Results: Among 45 patients, 20 (44.4%) developed thyroid disorders following delivery. Postpartum thyroiditis (PPT) developed in 8 patients (17.8%), and GD developed in 12 (26.0%). The onset of the PPT disease 3.1 ± 1.4 months following delivery, which was significantly earlier than the 6.7 ± 2.7 months required for the post delivery onset of GD (p=0.003). The TBII values, measured during the thyrotoxic state in each womaen, were negative in women with PPT and positive in 71.4% of women with GD (p=0.030). The duration of treatment for hyperthyroidism prior or pregnancy, the number of recurrences, and the time interval without treatment, were not associated with the development of postpartum thyroid disorders. Whereas, the mean number of past pregnancies for women who developed PPT was 3.9 ± 2.1, and was significantly higher than the 2.2 ± 1.7 for women developing no thyroid dysfunctions (p=0.044). In 13 women their initial onset of GD occurred within one year postpartum, 7 (53.8%) having had a recurrence, which was significantly higher than in women whose disease onset occurred unrelated to delivery (5 of 32 women: 15.6%). Conclusion: Women with GD developed postpartum thyroid dysfunctions in 44.4% of cases. Women whose initial disease onset occurred within one year postpartum had higher recurrences of GD, and women who developed PPT had a history of higher gravidity compared to the euthyroid women postpartum. Therefore, if women with GD develop postpartum thyroid dysfunctions, the diagnosis should be made, and a treatment modality planned, following careful considerations of the patients' past obstetric history, changes in clinical manifestations and the TBII values

창공91의 비행 시험을 통한 지면 효과 측정에 관한 연구

황명신,장욱진,이정훈 한국 항공대학교 항공산업기술연구소 1996 航空宇宙産業技術硏究所 硏究誌 Vol.6 No.-

창공-91 비행기를 이용하여 비교적 양항비가 큰 비행기의 지면 효과를 측정하는 연구를 수행하였다. 이착륙 중에는 지면에 의한 영향에 의해 공기역학적인 특성이 변화하며, 따라서 조종 특성에 많은 영향을 준다. 지면 효과에 대한 연구는 특히 시뮬레이터를 설계하는데 기초적인 자료로서 대단히 중요하지만 측정의 어려움 등으로 인하여 거의 연구 자료가 없다. 본 연구에서는 경비행기인 창공-91을 이용하여 여러 가지 비행 형태에 대해 지면 효과를 측정하기 위한 비행 시험을 수행하였다. 비행 형태는 실제 이착륙 조건을 고려하여 플랩 1단, 2단, 3단에 대하여 수행되었으며, 본 연구에서는 적은 비행회수로도 지면 효과를 측정할 수 있는 일정 받음각 방법을 이용하여 비행을 하였다. 실제 비행 시험 결과 지면 가까이에서 양력의 증가를 확인할 수 있었지만 항력과 키놀이 모멘트의 변화를 측정하기는 어려웠다. When an airplane flies close to the ground, at a height of one or two wing spans, it experiences an increase in lift and significant changes in drag and pitching moment. This phenomenon is known as ground effect. A study on the Ground Effect of Chang-Gong 91 was conducted by the flight test. Because of the obvious influence of ground proximity during the takeoff and landing phases, it has been the subject of considerable investigation, especially for simulator design. However, despite this consideration, an adequate amount of reliable ground-effects data does not appear in the literature. A Constant Angle of Attack approach technique was used to measure ground effect on several aircraft configuration. Test results indicate that ground proximity produces and increase in the lift-curve slope for Chang-Gong 91

흰쥐 膽汁鬱滯 肝臟의 5'-Nucleotidase와 Gamma-Glutamyl Transpeptidase의 活性値

郭春植,張億奎 啓明大學校 醫科大學 1985 계명의대학술지 Vol.4 No.1

膽汁鬱滯가 隨伴되는 肝膽道 疾患에서 增加되는 血淸 5'-NT와 GGT의 增加 機轉을 仔細히 알아보기 爲하여 흰쥐의 總輪膽管 또는 中葉과 左側外葉 膽管을 結紮하고 經時的으로 血淸과 肝組織의 5'-NT, GGT 및 ALP의 變動을 觀察하는 한편 肝組織 損傷과 肝 및 血淸蛋白 合成能 等을 測定하였으며 아울러 이들 酵素와 肝 및 血淸蛋白 合成能에 對한 actinomycin D의 影響도 觀察하여 相互比較하였다. 總輪膽管을 結紮한 흰쥐에서는 血淸 總 bilirubin이 12時間에 顯著히 上昇되어 6日까지 繼續 높은 濃度를 維持하였다. 이와같이 膽汁鬱滯가 持續되는 狀態에서 血淸과 肝組織의 膜結合 및 可溶性 5'-NT, GGT와 ALP는 顯著히 上昇되었다. 그러나 이들 血淸 酵素와 肝組織 酵素間에는 그 上昇 時期와 上昇率이 큰 差異를 보였다. 즉 血淸 5'-NT와 GGT는 總輪膽管 結紮後 12時間에 急激히 上昇됨에 比해 肝組織의 膜結合 및 可溶性 5'-NT와 GGT는 2日째에 顯著히 上昇되었다. 그리고 그 上昇率은 前者가 後者에 比해 훨씬 높았다. 한편 血淸肝性 ALP와 肝組織의 膜結合 및 可溶性 ALP는 모두 12時間에 急激히 增加되었으며 그 上昇率은 역시 前者가 높았다. Actinomycin D를 總輪膽管 結紮 前後에 投與하고 1日後 이들 酵少의 變動을 關察했을 때 血淸 ALP나 肝組織의 膜結合 ALP는 다같이 懸著히 그 活性이 抑制되었다. 그리고 血淸 및 肝組織의 膜結合 GGT와 肝組織의 膜結合 5'-NT는 actinomycin D 投與後 1日에는 意義있는 抑制 現象을 보이지 않았다. 그러나 1.5日 後에는 肝組織의 膜結合 5'-NT와 GGT는 意義있는 抑制 現象을 나타내었다. 이와는 反面에 血淸 5'-NT는 actinomycin D를 投與하지 않은 總輪膽管 結察群보다 약 75%의 增加를 보였다. 總輪膽管 結紮로서 血淸의 ALP, AST 및 LDH는 다같이 12時間부터 顯著히 增加되어 1日에는 最固値에 達하고 以後 減少되기는 하나 繼續 높은 値를 維持하였다. 그리고 그 增加率의 크기는 血淸 ALP, AST, LDH의 順序였다. 그러나 部分膽管을 結紮한 흰쥐에서는 이들 酵素가 前者에 比해 經度의 增加에 不過하였다. 總輪膽管을 結紮했을 때 肝組織의 總 ALP, 總 AST 및 LDH는 5'-NT, GGT 및 ALP와는 달리 오히려 總輪膽管 結紮後 1日 또는 2日後부터 減少되어 繼續 減少된 値를 보였다. 그리고 역시 部分膽管 結紮群에서도 膽道가 閉鎖된 肝葉이 減少된 値를 나타내었으며 그 減少率은 總輪膽管 結紮群보다 낮았다. 한편 部分膽管을 結紮한 흰쥐에서는 血淸 bilirubin의 增加가 없음에도 血淸 5'-NT, GGT 그리고 血淸肝性 ALP는 모두 實驗 全期間동안 增加되었다. 그러나 그 增加의 程度는 總輪膽管을 結紮한 흰쥐보다는 낮았다. 또한 肝組織中의 膜結合 5'-NT, GGT 및 ALP는 같은 흰쥐에서 다같이 膽道가 閉鎖된 肝葉이 膽道가 開放된 肝葉보다 增加되었으며 이것도 역시 總輪膽管을 結紮한 群보다는 낮은 增加率을 보였다. 그리고 肝組織의 可溶性 5'-NT와 GGT는 實驗全期間동안 變動을 보이지 않았다. 그러나 肝組織의 可溶性 ALP는 膽道가 閉鎖된 肝葉이 開放된 肝葉보다 훨씬 높았다. 總輪膽管을 結紮한 흰쥐에서 amino acid mixture-(U)-C의 肝組織 및 血淸蛋白에의 編入速度는 酵素들의 活性 增加보다는 약간 늦게 兩者 모두 總輪膽管 結紮後 1日부터 增加되기 始作하여 6日까지 繼續 높은値를 維持하였다. 한편 部分膽管을 結紮한 動物에서도 역시 膽道가 閉鎖된 肝葉이 膽道가 開放된 肝葉보다 amino acid mixture-(U)-C의 肝蛋白에의 編入率이 增加되었으나 그 增加率은 總輪膽管을 結紮한 흰쥐보다는 낮았다. 그러나 이의 淸血蛋白에의 編入率은 意義있는 增加를 보이지 않았다. 그리고 總輪膽管 結紮 前後에 actinomycin D를 投與했을 때 肝과 血淸蛋白 合成이 顯著히 抑制되었다. 總輪膽管을 結紮한 흰쥐에서 肝은 總輪膽管 結紮後 2日에 약 1.6倍 6日은 약 2.7倍의 腫大를 보였다. 그러나 部分膽管 結紮群에서는 肝臟의 腫大의 程度가 經度에 不過하였다. 그리고 總輪膽管 結紮群이나 部分膽管結紮群 모두 肝組織의 總蛋白 濃度는 別 變動이 없었다. 그러나 可溶性 蛋白의 濃度는 6日에 意義있는 減少를 보였다. 以上의 成績으로 보아 膽汁鬱滯時 惹起되는 血淸 5'-NT 및 GGT의 增加는 肝細胞膜의 生化學的 變性에 依해서 細胞膜에 含存되어 있는 이들 酵素가 血中으로 多量 遊離되어 나오는데 起因할 것으로 생각되며 同時에 膽道細胞의 增殖과 이 細胞에서의 이들 酵素의 合性 亢進이 더욱 甚한 血中增加를 誘導하는 것으로 생각된다. 그리고 어떤 物質에 誘導因子인지는 分明치 않으나 혹 膽汁鬱滯로 因한 膽汁酸의 增加가 이들 酵素合成을 誘導하는 것이 아닌가 생각된다. Changes in the activities of 5'-nucleotidase, gamma-gultamyl transpetidase, and alkaline phosphatase in serum were studied with rats which had bile duct ligated totally and partially over a period of 6 days after operation. The above enzymes were also observed in the activities of both membrane bound and soluble of liver. Activities of alanine aminotransferase, asparate aminotransferase, and lactate dehydrogenase in both serum andliver, and incorporation rates of amino acid mixture-(U)-?? into both serum protein and liver protein were compared with the changes obwerved above. And then the effects of actinomycin D adminstered to totally ligated rats were also observed. The levels of total bilirubin of serum increased sharply after the ligation of the common bile duct. 5'-Nucletidase, gamma-glutamyl transpeptidase and alkaline phosphatase showed increased activities both in membrane bound and in soluble of liver, however, the increases of 5'-nucleotidase and gamma-glutamyl transpeptidase were not detectable until second day, whereas the significant increase of alkaline phosphatase was detectable within 12 hours after common bile duct ligation. In the serum, however, the activities of these enzymes were significantly elevated in 12 hours after operation. Maximum levels were appeared on first day for 5'-nucleotidase and on third day for alkaline phophatase and gamma-glutamyl transpeptidase. 5'-Nucleotidase activities in the serum of both control rats and totally bile duct ligated ones were forund to be approximately increased by 1.7 fold 1 day after the administration of actinomycin D. The activities of hepatic membrane bound and serum hepatic alkaline phosphatase were significantly diminished 1 day after the administration of actinomycin D. The activities of hepatic membrane bound and soluble of both 5'-nucleotidase and gamma-glutamyl transpeptidase, and serum gamma-glutamyl transpeptidase did not change 1 day after the adminstration of actinomycin D. But the activies of hepatic membrand bound of both 5'-nucleotidase and gamma-glutamyl transpeptidase were significantly inhbited 1.5 day after the administration of actinomycin D. Partial ligation of bile duct which is the ligation of bile ducts of both median and left lateral lobes, also induced a significant increase of 5'-nucleotidase, gamma-glutamyl transpeptidase, and alkaline phosphatase in serum but serum bilirubin level remained within the normal range. Liver membrane bound of 5'nucleotidase and gamma-glutamyl transpeptidase also showed a marked increase but liver soluble of those did not change. Alanine aminotransferase, aspartate aminotransferase and lactate dehydrogenase of serum were strikingly increased after total ligation of bile duct, but they were increased moderately in partially ligated rats. And the activities of the three enzymes were markedly decreased in the liver of totally and partially bile ducts ligated rats. Incorporation rates of amino acid mixture-(U)-?? into both serum protein and liver protein showed a significant increase after the total bile duct ligation in rats and reverse effect was observed after the administration of a actinomycin D. In the case of partial ligation, the incorporation rate showed a slight increase in ligated lobe compared with patent lobe of liver. The above results showed that bile duct ligation might cause an early increase in synthesis of he[atic alkaline phosphatase, however, the increase in synthesis of 5'-nucleotidase and gamma-glutamyl transpepetidase is delayed until the phase of bile duct proliferation. The earyl changes within 1 day in serum activities of 5'-nucleotidase and gamma-glutamyl transpeptidase seemed to be caused by alteration of membrane permeability of hepatic cell.

The impact of preliminary elements for management innovation adoption on the firm`s profitability

( Uk Jung ),( Chang-hwa Baek ),( Shin-won Seo ),( Sung-uk Lim ) 한국품질경영학회 2015 한국품질경영학회 학술대회 Vol.2015 No.2

Purpose: Many CEOs have often introduced various types of management innovation for the firm``s profitability improvement. If the firm is, however, in a situation in which the firm is not ready to adopt those management innovations, it is not possible to achieve the goal of profit enhancement. In this study, we analyze the relationship between the preliminary elements of management innovation and profitability, and want to introduce the key success factors of management innovation. Methodology/Approach: After investigating preliminary elements of the management innovation adoption through existing literature review, we conducted a questionnaire survey to Korean K-company. Then, by utilizing the structural equation modeling with AMOS, we analyzed the impact of preliminary elements of the management innovation adoption on the profitability. Findings: We found out that there are main preliminary elements of the management innovation adoption directed to profitability enhancement From this finding, it would be possible to assist promoting successful management innovation of the company. Research Limitation/implication: This research has a limitation on that the findings are based on the analysis with subjective measures rather than objective ones for profitability. There is a need for further studies using objective measures such as an actual percentage figure for sales growth or profit change. Originality/Value of paper: By searching and enhancing the preliminary elements of management innovation affecting the profitability, it would be possible to reduce the innovation failure in the future business.

컴퓨터를 활용한 교수-학습 방안에 관한 연구(I)

문창현,조용욱 신라대학교 자연과학연구소 2002 自然科學論文集 Vol.10 No.-

A modem society has been changed continuously, and this change intends to become to be the information society with increasing information. The education of this kind of society have to teach the necessary knowledges, valuation, techniques and attitudes which support the request of present society. For this social requirement, new systematic teaching-learning methods and materials are achieved by computer media which can provide us the knowledge efficiently and make teachers to escape traditional instruction. But the introduction of computer for the school education can not guarantee students self-controlled studying. Therefore, we need to the computer software in the place where the educational effect is expected. And computer have to use in school-education, and it is not offered as the form to provide the fried information but as the form to provide the things that students can research something freely. The present thesis shows a new teaching-learning material for students' better understanding about math-education by using computer which is a part of the curriculum. That is, the purpose of this paper is to introduce one method for school-education in classroom for the forthcoming future.

CRM과 e-CRM, m-CRM의 비교분석 연구

임창욱,최윤홍 호남대학교 대학원 2004 호남대학교 대학원 논문집 Vol.4 No.-

CRM, which stands for Customer Relationship Marketing, supports characterized marketing activities of customers by extending internal and external data, utilizes customer information taking advantage of being able to aquire customers' information and includes the characteristics of BRR(Business in the Process Reengineering) which intends to change companies' concept about customers. The organizations that anticipate being the leaders of competition are starting to reform paradigm for the current customers. In Korea, CRM was first introduced in the late 1990s with financial organizations and communications companies being leaders, and in the beginning of the 2000s, the entire service business, including the distribution industry, was starting to have interests and anticipations of CRM. E-CRM was introduced from late 1999 to early 2000 and the enterprises that are adopting m-CRM have been increasing since 2002. In a changing environment, where the speed of technology development is faster than that of marketing paradigm development, the companies which have already taken CRM have much interest in e-CRM and m-CRM, but they do not have objective data about ROI (Return On Investment), so e-CRM or m-CRM which requires considerable expenses is being delayed. In addition, even though there are much previous research about CRM, e-CRM and m-CRM, the systematic research of those by comparative analysis is insufficient. The purpose of this research ,in this environment, is topresent practical guidelines to the companies which have already taken and operated the CRM system but is hoping to extend to e-CRM, m-CRM through understanding CRM, e-CRM and m-CRM by examination of those theories and the accumulated examples and through comparatively analyzing those systems systematically.

문제해결을 위한 발견술

문창현,조용욱 신라대학교 자연과학연구소 2003 自然科學論文集 Vol.12 No.-

A modern society has been changed continuously, and this change intends to become to be the information society with increasing information. The education of this kind of society have to teach the necessary knowledges, valuation, techniques and attitudes which support the request of present society. The goal of mathematics education is to give students mathematical thinking power and to help them solve the problems with a logical and creative thinking in the problems of reality in daily life. Since 1980s, as far as mathematics education is concerned, the improvement of ability to solve the problems has been emphasized. For this purpose, we will investigate G. Polya's mathematical heuristics. Also we will investigate 'reversely solving', among of the many strateges, which can increases metacognition by conversely thinking.