• 제목/요약/키워드: Data Life Cycle

검색결과 1,364건 처리시간 0.028초

Computer Aided Innovation 역량이 연구개발역량에 미치는 효과: 국내 중소기업을 대상으로 (The Effects of the Computer Aided Innovation Capabilities on the R&D Capabilities: Focusing on the SMEs of Korea)

  • 심재억;변무장;문효곤;오재인
    • Asia pacific journal of information systems
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    • 제23권3호
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    • pp.25-53
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    • 2013
  • This study analyzes the effect of Computer Aided Innovation (CAI) to improve R&D Capabilities empirically. Survey was distributed by e-mail and Google Docs, targeting CTO of 235 SMEs. 142 surveys were returned back (rate of return 60.4%) from companies. Survey results from 119 companies (83.8%) which are effective samples except no-response, insincere response, estimated value, etc. were used for statistics analysis. Companies with less than 50billion KRW sales of entire researched companies occupy 76.5% in terms of sample traits. Companies with less than 300 employees occupy 83.2%. In terms of the type of company business Partners (called 'partners with big companies' hereunder) who work with big companies for business occupy 68.1%. SMEs based on their own business (called 'independent small companies') appear to occupy 31.9%. The present status of holding IT system according to traits of company business was classified into partners with big companies versus independent SMEs. The present status of ERP is 18.5% to 34.5%. QMS is 11.8% to 9.2%. And PLM (Product Life-cycle Management) is 6.7% to 2.5%. The holding of 3D CAD is 47.1% to 21%. IT system-holding and its application of independent SMEs seemed very vulnerable, compared with partner companies of big companies. This study is comprised of IT infra and IT Utilization as CAI capacity factors which are independent variables. factors of R&D capabilities which are independent variables are organization capability, process capability, HR capability, technology-accumulating capability, and internal/external collaboration capability. The highest average value of variables was 4.24 in organization capability 2. The lowest average value was 3.01 in IT infra which makes users access to data and information in other areas and use them with ease when required during new product development. It seems that the inferior environment of IT infra of general SMEs is reflected in CAI itself. In order to review the validity used to measure variables, Factors have been analyzed. 7 factors which have over 1.0 pure value of their dependent and independent variables were extracted. These factors appear to explain 71.167% in total of total variances. From the result of factor analysis about measurable variables in this study, reliability of each item was checked by Cronbach's Alpha coefficient. All measurable factors at least over 0.611 seemed to acquire reliability. Next, correlation has been done to explain certain phenomenon by correlation analysis between variables. As R&D capabilities factors which are arranged as dependent variables, organization capability, process capability, HR capability, technology-accumulating capability, and internal/external collaboration capability turned out that they acquire significant correlation at 99% reliability level in all variables of IT infra and IT Utilization which are independent variables. In addition, correlation coefficient between each factor is less than 0.8, which proves that the validity of this study judgement has been acquired. The pair with the highest coefficient had 0.628 for IT utilization and technology-accumulating capability. Regression model which can estimate independent variables was used in this study under the hypothesis that there is linear relation between independent variables and dependent variables so as to identify CAI capability's impact factors on R&D. The total explanations of IT infra among CAI capability for independent variables such as organization capability, process capability, human resources capability, technology-accumulating capability, and collaboration capability are 10.3%, 7%, 11.9%, 30.9%, and 10.5% respectively. IT Utilization exposes comprehensively low explanatory capability with 12.4%, 5.9%, 11.1%, 38.9%, and 13.4% for organization capability, process capability, human resources capability, technology-accumulating capability, and collaboration capability respectively. However, both factors of independent variables expose very high explanatory capability relatively for technology-accumulating capability among independent variable. Regression formula which is comprised of independent variables and dependent variables are all significant (P<0.005). The suitability of regression model seems high. When the results of test for dependent variables and independent variables are estimated, the hypothesis of 10 different factors appeared all significant in regression analysis model coefficient (P<0.01) which is estimated to affect in the hypothesis. As a result of liner regression analysis between two independent variables drawn by influence factor analysis for R&D capability and R&D capability. IT infra and IT Utilization which are CAI capability factors has positive correlation to organization capability, process capability, human resources capability, technology-accumulating capability, and collaboration capability with inside and outside which are dependent variables, R&D capability factors. It was identified as a significant factor which affects R&D capability. However, considering adjustable variables, a big gap is found, compared to entire company. First of all, in case of partner companies with big companies, in IT infra as CAI capability, organization capability, process capability, human resources capability, and technology capability out of R&D capacities seems to have positive correlation. However, collaboration capability appeared insignificance. IT utilization which is a CAI capability factor seemed to have positive relation to organization capability, process capability, human resources capability, and internal/external collaboration capability just as those of entire companies. Next, by analyzing independent types of SMEs as an adjustable variable, very different results were found from those of entire companies or partner companies with big companies. First of all, all factors in IT infra except technology-accumulating capability were rejected. IT utilization was rejected except technology-accumulating capability and collaboration capability. Comprehending the above adjustable variables, the following results were drawn in this study. First, in case of big companies or partner companies with big companies, IT infra and IT utilization affect improving R&D Capabilities positively. It was because most of big companies encourage innovation by using IT utilization and IT infra building over certain level to their partner companies. Second, in all companies, IT infra and IT utilization as CAI capability affect improving technology-accumulating capability positively at least as R&D capability factor. The most of factor explanation is low at around 10%. However, technology-accumulating capability is rather high around 25.6% to 38.4%. It was found that CAI capability contributes to technology-accumulating capability highly. Companies shouldn't consider IT infra and IT utilization as a simple product developing tool in R&D section. However, they have to consider to use them as a management innovating strategy tool which proceeds entire-company management innovation centered in new product development. Not only the improvement of technology-accumulating capability in department of R&D. Centered in new product development, it has to be used as original management innovative strategy which proceeds entire company management innovation. It suggests that it can be a method to improve technology-accumulating capability in R&D section and Dynamic capability to acquire sustainable competitive advantage.

여름어리표범나비(Mellicta ambigua (Menetries))의 생태적 특성에 관한 보고 (Reports on bionomical characteristics of Mellicta ambigua)

  • 김세권;남경필;김남이;배경신;최영철;이상현
    • 한국잠사곤충학회지
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    • 제52권2호
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    • pp.110-116
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    • 2014
  • 본 연구에서는 최근 개체수가 급격히 감소하고 있는 여름어리표범나비의 생태를 복원하기 위한 기초자료를 마련하고자 서식지에서의 생태를 확인하였으며, 인공사육을 통해 생태적 특성을 구명하고자 하였다. 여름어리표범나비의 서식지는 최근에 발견된 바 있는 강원도 인제와 전라남도 진도지역을 조사하였으며, 성충의 활동시기인 2012년 6 ~ 8월경 4회에 걸쳐 조사를 진행하였으며, 진도 지역에서 약 100마리 이상의 대형 군체가 확인되었다. 진도 지역의 서식지에서는 기주식물인 수염며느리밥풀(Melampyrum roseum var. japonicum)이 대규모로 자생하고 있는 것을 확인하였으며, 인제 지역에서는 국내에 기주식물로 알려진 냉초(Veronicastrum sibiricum)를 확인할 수 있었다. 기주식물에서 알이나 애벌레, 번데기를 확인하지는 못하였다. 여름어리표범나비의 생육특성을 조사하기 위하여 중부지방의 서식지에서 자생하는 냉초(Veronicastrum sibiricum)를 기주식물로 이용하였으며, 진도의 서식지에서 인공사육 실험을 위한 모충으로 암컷 3마리를 채집하여 사육실험을 진행하였다. 기주식물 화분에 망을 씌우고 암컷 개체 1마리씩을 넣어 채란을 받았다. 총 산란량은 465개였으며, 암컷 한 마리당 산란량은 120 ~ 186개로 나타났다. 알은 한 곳에 무더기로 낳아 난괴를 형성하는 특징이 있으며, 알의 크기는 직경 0.6 mm, 높이 0.7 mm로 구형에 가깝다. 120개의 알이 산란된 난괴를 대상으로 생육특성을 조사한 결과 산란된 알은 $9.96{\pm}0.4$일이 경과한 후 부화하였으며, 부화율은 95.0%였다. 부화한 애벌레는 1령 기간이 $4.1{\pm}0.6$일, 2령 $12.1{\pm}1.0$일, 3령 $8.1{\pm}0.7$일로 나타났다. 4령 애벌레는 활동이 둔해지면서 스스로 실을 내어 기주식물 잎을 둥글게 말은 후 그 속에서 집단으로 모여 있다가, 그 상태로 겨울을 나는 것으로 나타났다. 이른 봄(3월 초)에 깨어난 애벌레는 주변을 배회하다 먹이식물의 새싹이 나오면 먹이식물로 이동하여 먹이식물을 섭식한다. 큰개불알풀이나 질경이에 대한 먹이식물 이용 가능성을 조사한 결과 월동이후의 4령 애벌레부터는 정상적으로 섭식하고 자라는 것을 확인하였으며, 2차년도에 질경이를 이용한 사육시에는 산란은 하였으나 부화한 1령 애벌레가 모두 폐사하여 추가 실험이 불가능하였다. 큰개불알풀에서는 산란여부를 확인하지 못하였으며, 1령 애벌레를 이동시켜 사육실험을 진행하였으나 1령 애벌레시기에 모두 폐사하였다. 여름어리표범나비는 6회의 탈피를 통해 총 7령까지 성장하고, 4령 애벌레는 월동기간을 포함하여 $239.2{\pm}10.9$일, 5령 기간은 $12.3{\pm}1.3$일, 6령 기간은 $17.1{\pm}1.1$일, 7령 기간은 $10.5{\pm}1.0$일로 나타났으며, 총 애벌레 기간이 무려 $303.4{\pm}14.0$일에 이른다. 탈피각을 통해 애벌레의 두폭을 확인한 결과 1령이$0.28{\pm}0.02mm$, 2령 $0.45{\pm}0.02mm$, 3령이 $0.58{\pm}0.02mm$, 4령이 $0.75{\pm}0.03mm$, 5령이 $0.89{\pm}0.05mm$, 6령이 $1.23{\pm}0.06mm$, 7령이 $2.13{\pm}0.11mm$로 나타났다. 7령 말기의 애벌레는 약 2일간의 전용기간을 거친 후 먹이식물의 줄기나 주변의 식물에서 번데기가 된다. 번데기의 크기는 약 13 mm였으며 용화율은 약 92.0%로 나타났다. $9.1{\pm}1.6$일간의 번데기 기간을 거친 후 성충으로 우화하였으며, 우화율은 88.6%였다. 본 실험 결과 여름어리표범나비의 인공사육이 가능한 것으로 나타났으나, 애벌레 기간이 길고 1세대가 1년에 걸쳐 이루어지는 등의 단점으로 인해 대량사육에는 어려움이 있을 것으로 판단되었다. 여름어리표범나비의 멸종을 막기 위해서는 향후 지속적인 증식과 서식지 복원 및 보존을 위한 노력이 따라야 할 것으로 보인다.

간흡충증(肝吸虫症)의 역학(疫學) - I. 고도유행지(高度流行地) 김해지방(金海地方)에 있어서의 간흡충감염(肝吸虫感染)의 현황(現況)과 자연추이(自然推移) (Epidemiological Studies of Clonorchiasis. - I. Current Status and Natural Transition of the Endemicity of Clonorchis sinensis in Gimhae Gun and Delta, a High Endemic area in Korea)

  • 김동찬;이온영;이종수;안장수;장영미;손성창;문익상
    • 농촌의학ㆍ지역보건
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    • 제8권1호
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    • pp.44-65
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    • 1983
  • As a part of the epidemiological studies of clonorchiasis, this study was conducted to evaluate the current endemicity and the natural transition of the Clonorchis infection in Gimhae Gun and delta area a high endemic area in Korea in recent years, prior to the introduction of praziquantel which will eventually influence the status of the prevalence. The data obtained in this study in 1983 were evaluated for natural transition of the infection in comparison with those obtained 16 years ago in 1967 by the author(Kim, 1974). The areas of investigation, villages and schools surveyed, methods and techniques used in this study were the same as in 1967, except for the contents of the questionnaire for raw freshwater fish consumption by the local inhabitants. 1) The prevalence rate of clonorchiasis in the general population of the villages was 48.1% on the average out of a total of 484 persons examined. The average of those of the riverside-delta area was 65.2% and 43.0% in the inland area. Among the schoolchildren, the prevalence rate was 8.2% on the average out of a total of 1,423 examined. By area, the prevalence rate was 10.8% in the riverside delta area and 2.8% in the inland area. By sex, difference in the prevalence was seen only in the inhabitants of the inland area showing 52.4% in the male and 33.5% in the female. 2) In the natural transition of the infection, the prevalence rate among the inhabitants has decreased from 68.8% in 1967 to 48.1% in 1983, and in the schoolchildren from 56.4% in 1967 to 8.2% in 1983. The reduction rate was higher in the riverside-delta area than in the inland area. 3) In the prevalence rate by age, 11.9% was first seen in the 5-9 age group and the rate gradually increased up to 75.0% in the 50-59 age group. By sex, the rate was higher in the male than in the female in the 20-29 age group and over. 4) In the natural transition of the prevalence rate by age, the reduction rate of the infection during the past 16 years was greater in the younger age groups up to the 40-49 age group and reached the same level in the age group 50-59. Reduction was seen again in the age group over 60s. By sex, the reduction rate was greater in the female than in the male in the 20-29 age group and over. By area, the reduction rate was greater in the riverside delta area than in the inland area, particularly in the young age groups. 5) In the intensity of the infection among the cases, the mean egg out-put per mg feces per infected cases(EPmg) in the inhabitants was 6.3. EPmg of those of the river-side-delta area was 15.4 and that of the in-land was 2.8. On the other hand, in the schoolchildren, EPmg was 3.2, and no difference was seen between the two areas, the river-side-delta area and the inland area. 6) In the transition of the intensity of the infection by area, EPmg among the inhabitants inexplically increased from 7.8 in 1967 to 15.4 in 1983. This was probably caused by uneven specimen collection in the process of sampling the population. EPmg of the inhabitants in the inland area and those of the schoolchildren of both riverside delta and inland areas showed a similar decrease in the past 16 years. 7) The intensity of the infection by age showed a relatively low level in the 20-29 age group and below, and EPmg 5.1-9.5 was seen in the 30-39 age group and over. Sex, Epmg was 5.8 in the male and 4.7 the female. By in 8) In the transition of the intensity of the infection, EPmg decreased from 6.2 in 1967 to 5.4 in 1983. By age, in contrast to the figures of 1967 in which EPmg gradually increased with some fluctuation from 1.1 in the 0-4 age group to peak 10.5 in the 50-59 age group, in 1983 lower intensity of the infection was seen in the age group from 10-14 to 20-29 with the EPmg range of 0.6-2.7. 9) In the distribution of the clonorchiasis cases by the range of EPmg value, 43.2% of the cases were in 0.1 0.9 and 34.6% in 1.0-4.9. As a whole by cumulative percent, 44.6% of them were under 0.9 as light infection and 86.1% of them under 9.9 up to moderate infection. By sex, no difference was seen in Epmg. 10) In the transition of the distribution by the range of Epmg, the cases were distributed up to the range 80.0-99.9 in 1967 and to 60.0-79.9 in 1983. By cumulative percent, in the range of 0.1-0.9 and less, light infection, 34.3% of them were distributed in 1967 and 44.6% in 1983 with about 10% increase. In the range of 5.0-9.9 and less, up to moderate infection, 83.2% in 1967 and 86.1% in 1983 of the cases were seen, respectively. 11) The practice of raw freshwater fish consumption among the inhabitants seems to have decreased in recent years. Those who admitted to raw freshwater fish consumption in the last two years among the infected inhabitants were 59.3%, although 86.8% of them professed to have experience with raw freshwater fish consumption. 31.7% of those who have had experience of the raw freshwater fish consumption denied any further consumption in recent years. From an interview of 543 school-children, 24.1% of them admitted to an experience of raw freshwater fish consumption. However, those who have practised in the past two years comprized 17.9%. Those who denied raw freshwater fish consumption in recent years among those who had such experience were 26.0% out of 131 interviewed. The rate of raw freshwater fish consumption in both inhabitants and schoolchildren were higher in the male than in the female. On the contrary, the rate of those who did not practise in recent years among those who had experience of raw freshwater fish consumption was higher in the female than in the male. 12) The major reason for the reduction of raw freshwater fish consumption among the local inhabitants was the risk of the fluke infection. However, it has become apparent that such change of taste has resulted from water pollution impact which has affected throughout the areas of the freshwater systems in this locality since last several years. 13) In animal survey, Clonorchis infection was seen in 14.8% of 88 dogs examined and 3.7% of 27 house rats examined. It was noted that populations of dogs and cats have increased in the villages surveyed. Although the prevalence rate was lower in the present survey than those of 1967, the significance of the animals as the reservoir host has not changed. 14) Prevalence rate of Clonorchis infection by cercariae in the first intermediate host, Parafossarulus manchouricus, was 0.6% out of 517 snails examined. The infection rate was lower in comparison with 2.3% out of 2,124 examined in 1967. Moreover, sharp decreases in number and distribution of the intermediate host snails in many watershed areas of the huge freshwater systems in this locality seemed to reduce transmission of Clonorchis in connection with the intermediate host stage of its life cycle. 15) Clonorchis infection in the second intermediate fish hosts was relatively low. The mean number of Clonorchis metacercaria per fish in Pseudorasbora parva was 517 in 1983, whereas it was 1943 in 1968 through 1969. Environmental water pollution has also caused the decreased fish population density in these areas, and this has also apparently affected to the practice of raw freshwater fish consumption among the local inhabitants. 16) In conclusion, endemicity of Clonorchis infection in Gimhae Gum and delta area of the Nagdong River has sharply decreased during the past 16 years. The major cause of the regressive transition of the infection was the water pollution of the land water systems of this locality. The pollution has upset the ecosystems comprizing of the intermediate hosts of Clonorchis in many areas, and also affected to a significant extent to the discontinuance of the local inhabitants for raw freshwater fish consumption.

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대형마트 충성도의 이중경로모형 (Dual Path Model in Store Loyalty of Discount Store)

  • 지성구;이인구
    • 한국유통학회지:유통연구
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    • 제15권1호
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    • pp.1-24
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    • 2010
  • 국내 대형마트 점포 수는 2008년 기준 403개로 포화시점에 근접하고 있다. 이러한 경쟁상황에서 '점포충성도(store loyalty)'가 지속적 경쟁우위를 위한 전략적 도구로써 그 활용성이 점점 더 중요시 되고 있다. 다양한 관점에서 점포충성도를 대형마트 연구의 핵심적 과제 다루어왔으나, 통합적인 연구 접근 방법이 미흡한 실정이다. 따라서 본 연구에서는 통합적 관점에서 점포충성도가 형성되는 두 가지 경로를 제안하였다. 이중경로모형은 첫째, 내재적 경로 '서비스품질$\rightarrow$고객만족$\rightarrow$점포충성도', 둘째, 외재적 경로 '점포개성$\rightarrow$점포동일시$\rightarrow$점포 충성도'로 구성된다. 조사대상은 대형마트를 이용하는 소비자들을 대상으로 진행하였으며, 구조방정식모형 분석을 통하여 제안된 이중경로모형의 적합성 및 가설검증을 실시하였다. 연구결과, 모형의 적합지수들은 상당히 좋은 값들을 보여주고 있다. 또한 본 연구에서 새롭게 제시된 내재적 경로인 서비스품질은 고객만족에 정의 영향을 미치고, 고객만족은 결과변수인 대형마트의 점포충성도에 매우 유의하게 영향을 준 것으로 나타났다. 그리고 외재적 경로에서 대형마트의 점포개성은 점포동일시에 긍정적인 영향을 주고 매개변수인 점포개성은 점포충성도에 영향을 미치는 것으로 나타났다. 이를 통해 본 연구는 대형마트의 점포충성도 형성에 관한 두 가지 경로를 제시함으로써, 이론적, 관리적 시사점을 도출하였고 연구의 한계점과 미래연구방향을 제시하였다.

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