• Title/Summary/Keyword: Km value

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Type Classification of Forestland Value by Using GIS Analysis (GIS를 이용한 산지가치 구분)

  • Ha, Do;Kim, Young-Seup
    • Korean Journal of Remote Sensing
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    • v.26 no.4
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    • pp.411-419
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    • 2010
  • The type of forestland value was evaluated using various thematic maps, satellite images, and aerial photograph of Namyangju, Based on GIS analysis, forestland value was classified into 4 kind types; conservation, production, recreation, and development values. Finally, the comprehensive analysis map of forestland value was made according to the priority order of value assessment. Among the whole forestland of Namyangju, conservation value area is $195km^2$, high production value area $96km^2$ except the conservation value area, high recreation value area $59km^2$, and the high development value area is $11km^2$. Henceforward, The value evaluation system of forestland by using GIS is to be very applicable for the scientific management of forestland, according to the periodic data update.

A Study on Correlation of Effective Discharge Energy and Exhaust Emission of Gasoline Vehicle (가솔린자동차의 유효방전에너지와 배기가스와의 상관관계 연구)

  • Yoo, Jongsik;Kim, Chulsoo
    • Transactions of the Korean Society of Automotive Engineers
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    • v.22 no.7
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    • pp.70-75
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    • 2014
  • The experiment was done on traveling at the speed of 20km/h, 60km/h and 100km/h using the performance testing mode for chassis dynamometer. The experimental method were employed to measure the waveform of secondary ignition coil and exhaust emission. In this experiment, the correlation between the secondary waveform coming from ignition coil and exhaust emission were measured in decrepit vehicle. The secondary waveform characterized by the value of effective discharge energy. The following results are obtained by analyzing the data relativity between the effective discharge energy and exhaust emission. The variation rate of effective discharge energy was largest 60km/h, 20km/h, 100km/h velocity in the ordered named. As the vehicle velocity increases, the average variation rate of CO and $NO_X$ decreases and that of HC and $CO_2$ decrease. The value of effective discharge energy, CO, $NO_X$ and fuel consumption is measured badly in case of car with failures in MAP, spark plug and good in case of car with before and after maintenance regardless of vehicle velocities. The value of effective discharge energy is to be nearly parabolic shape as vehicle velocity increases. As the value of effective discharge energy increases, the value of $NO_X$, HC and $CO_2$ decrease, the value of CO increase. The most sensible factors of exhaust emission were CO, $NO_X$, and the small variation factors were HC, $CO_2$.

Relationship Analysis between Lithology, Geological time and Geothermal Gradient of South Korea (남한지역의 암상 및 지질시대별 지온경사율 관계 분석)

  • 김형찬;이사로;송무영
    • Economic and Environmental Geology
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    • v.35 no.2
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    • pp.163-170
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    • 2002
  • The purpose of this study is to analyze the relationship between geology and geothermal gradient in South Korea using GIS. For the analysis, 352 temperature logging wells were constructed to spatial database and the relationships beween geothermal gradient and geological time and lithology were analyzed using the overlay the wells layer and 1:1,000,000 scale geological map layer. The average of the geothermal aradient of South Korea is 29.34$^{\circ}C$/km. In the geologic sequence, Cenozoic strata has 39.7$0^{\circ}C$/km, Mesozoic strata has 30.63$^{\circ}C$/km , Paleozoic strata has 22.32$^{\circ}C$/km, Proterozoic strata 23.15$^{\circ}C$/km geothermal gradient value. In the lithological aspect, plutonic rocks 33.96$^{\circ}C$/km, sedimentary rocks have 24.78$^{\circ}C$/km and sedimentary and volcanic rocks have 26.85$^{\circ}C$/km geotermal gradient value. The result can be used to develop geothermal energy and hot spring as a reference.

The Case of the Knowledge Management Activity of KSPO (국민체육진흥공단의 지식경영 성공 사례)

  • Lee, Sung Chul;Kang, Inwon
    • Knowledge Management Research
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    • v.10 no.4
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    • pp.209-223
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    • 2009
  • Knowledge management(KM) provides a means for organizations to interact with large groups of individuals, and as such, provides an ideal way for government bodies to interact with citizens. Although many private organization have long recognized the value of KM, the value have overlooked in public sector. The case of KSPO, one of leading public organizations in Korea, shows successful example in which KSPO succeeds in KM to improve working performance.

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The change in Sasang constitution prediction value and the associated factors using KS-15 questionnaire (KS-15 설문지를 이용한 사상체질 예측값의 변화와 관련요인 분석)

  • Park, Ji-Eun;Ahn, Eun kyoung;Jeong, Kyungsik;Lee, Siwoo
    • Journal of Sasang Constitutional Medicine
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    • v.34 no.2
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    • pp.1-14
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    • 2022
  • Objectives The aim of this study was to investigate the change in Sasang constitution prediction value in 2 years and find the factors associated with it. Methods Cohort data from Korean medicine data center was used. Using Korean Sasang Constitutional Diagnostic Questionnaire (KS-15) which consist of questions related to body shape, temperament, and symptoms, participants were categorized into Tae-Yang (TY), Tae-Eum (TE), So-Yang (SY), and So-Eum (SE). Sasang constitution was assessed on the baseline and after two years. Result Total 5,784 participants were analyzed. (TE 3, 341; SE 911; SY 1,532). Among them, 1,402 participants (24.2%) showed different prediction value in KS-15 after two years. The proportion of participants showing different prediction value in two years was the highest in SY, and the lowest in TE group. The factors associated with the change in Sasang constitution prediction value were different by constitution type. The change in feeling after sweating was significantly associated with the change in prediction value in TE and SY groups, not in SE group. Although temperament was not significantly associated with the change in prediction value from TE to SE, it was significantly associated with that in the change from TE to SY. The change in BMI and appetite were associated with the change in constitution prediction value in all three constitution types. Conclusion Although the factors associated with the change in prediction value of Sasang constitution were different by each constitution type, BMI and appetite were significant in all three types. These factors could be useful for developing Sasang constitution questionnaire and deciding re-prediction needs of Sasang constitution. Further research about the factors related to Sasang constitution diagnosis need to be conducted.

Characteristics of Unsold Land and Sites Needing Value Enhancement (미매각 토지의 원인진단 및 가치제고 사업지구 선정 방안)

  • Jeong, Yeun-Woo;Lee, Sang-Jun;Seong, Jang-Hwan
    • Land and Housing Review
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    • v.4 no.3
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    • pp.259-270
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    • 2013
  • This paper defined the concept of unsold land and diagnosed the cause of unsold land of LH business site. The results are showing as follows. First, unsold land is defined as land could not be sold until the completion of the project, and plan to sell the unsold land can be changed partially. Second, the status of unsold land in the 226 project sites were analyzed. $146km^2$ area corresponding to 74.8% of the total capital area($195km^2$) are unsold. By purpose, co-residential($38km^2$), industry($21km^2$), exclusive residential($16.4km^2$), commercial business($12.5km^2$), education($10.2km^2$) was larger in order. Third, value enhancement target project sites were selected and its symptoms and the cause of unsold land were analyzed. For the project site over average unsold rate, 6 sites located in province and 2 sites located in capital region were selected through collecting the practitioners and expert opinion. These 8 sites are characterized that sale of land for medium and large co-residential, urban support facilities, block-shaped house and attached house was inactive. Also, these sites commonly experienced economic fluctuations, changes in market demand, supply and demand mismatch, inflexible planning standards.

Study on the Behavior and Damage of Pedestrian at Car Body Impact (차체 충돌에 있어서의 보행자의 거동 및 손상에 관한 연구)

  • Cho, Jae-Ung;Han, Moon-Sik
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.20 no.2
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    • pp.157-161
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    • 2011
  • The study for traffic safety improvement is so necessary to minimize the wound of pedestrian at car impact as to prevent pedestrian from this accident. This study aims at analyzing the behavior affected by impact on which car body hits pedestrian. Load and damage of pedestrian are also investigated. This model is the small car body as frame structure. The pedestrian is modeled with dummy by CATIA as Korean standard body style. The ear impacts the side of pedestrian with the speed from 30 to 90km/h. Behavior and damage of pedestrian at impact are analyzed by ANSYS. In case of 30km/h, The maximum pressure of dummy becomes the maximum value of 100MPa after the elapsed time of 0.1second and then seems to remain at 105MPa constantly. In case of 60km/h, its pressure becomes the maximum value of 110MPa at the elapsed time of 0.05second and decreases at 90MPa until the elapsed time of 0.1second. This value fluctuates after the elapsed time of 0.1second. In case of 90km/h, its maximum pressure becomes the maximum value of 155MPa at the elapsed time of 0.07second and fluctuates after the elapsed time of 0.07second until O.3second. This value seems to remain at 100MPa constantly after 0.3second until 0.5second. But this pressure increases suddenly just after 0.5second. Maximum deformations of dummy increase linearly according to elapsed time at hitting velocities of 30, 60 and 90km/h.

Policy Decision Making Through Wildlife Habitat Potential With Space Value Categorization (야생동물 서식지 잠재력과 공간가치분류를 통한 정책방향 설정)

  • Jang, Raeik;Lee, Myungwoo
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.18 no.1
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    • pp.1-12
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    • 2015
  • Beginning of the human ecology in 1920s, the efforts for applying the environmental values to a policy have been embodied by the enactments of international agreement and relevant laws. The government has been struggling to adopt the environmental values for the policy by enacting the relevant laws and establishing the environmental value evaluation information (environmental conservation value assessment map, eco-natural map, biotope map). In spite of the efforts to apply the environmental value assessment information for the habitat potential of wildlife, the application is being challenged by the discrepancy in methods and criteria. Thus this study intends to measure the potential of wildlife habitat and apply it to the spatial value classification for the application plan of wildlife habitat potential in policy. Maxent was used for the habitat potential and the land types were classified depending on the surface and land use pattern of cadastral map. As a result, the policy matrix including conservation strategy(CS), restoration strategy(RS), practical use strategy(PS) and development strategy(DS) has been deduced as CS $13.05km^2$(2.38%), RS $1.64km^2$(0.30%), PS $162.42km^2$(29.57%) and DS $8.56km^2$(1.56%). CS was emerged mostly on forest valleys and farmlands, and RS was appeared in the road area near the conservation strategy areas. Boryung downtown and Daecheon Beach were the center of DS, while the forest and farmlands were presented as PS. It is significant that this study suggest the new approaching method by comparing the wildlife habitat potential with the land type. Since this study evaluated the environmental value by one species of leopard cat (Prionailurusbengalensis) with Maxent model, it is necessary to apply the habitat potential measuring method for various target species as further research.

Comparative Study on Waste Collection Factor in Jeju (제주도의 폐기물 수거요소 분석에 관한 비교 연구)

  • Kang, Hyun Choon;Kim, Tae Yoon;Yu, Seong Pil;Kang, Jin Young;Huh, Mock
    • Journal of the Korea Organic Resources Recycling Association
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    • v.17 no.1
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    • pp.103-109
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    • 2009
  • Analysis of collection factor was studied to compare various parameters such as collection time, transport time, amount of collection and number of man power by on-the-spot survey at one municipal area and one rural area in Jeju-do. Results showed that the amount of man and time to collect 1 ton of waste of rural area($5.853man{\cdot}hour\;per\;time$) was four times as much as that of municipal area($1.527man{\cdot}hour\;per\;time$). In case of a transport time, rural area(11.08 per km/hr) has similar value to municipal area(11.07 per km/hr) and has half or one third value to the restaurant(36.7km/hr), an apartment area(33.0km/hr) and a detached area(22.4km/hr).

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A Study of Knowledge Management System Construction Plan for the Information & Communications of Samsung Electronics (삼성전자(주) 정보통신부문 지식경영시스템 구축 방안 연구)

  • Lee, Ho Sung;Kim, Jin Bong
    • Knowledge Management Research
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    • v.2 no.1
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    • pp.83-94
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    • 2001
  • It is a challenging task to introduce and apply a theoretical concept like KM (Knowledge Management) to the corporate management by formulating such notion into a computer-based system. Apart from that, a company who suffers financially will be very much reluctant to employ KM, a solution that will not make an immediate impact on profit generation. Nonetheless, the perception of life-long workplace is being replaced by that of life-long career in today's society, and consequently it has become a key importance for the management to minimizing the Joss of valuable knowledge that results from frequent shift of manpower. Furthermore, knowledge is now regarded as a key to corporate competitiveness as its value has become a more important factor than that of physical resource in estimating a company's value. It is therefore necessary to transform such implicit knowledge that one possesses in his/her mind to a formation so that a company can achieve the ultimate goal of implementing KM: increase of profit and cost reduction. The objective of this research is to look into the case examples of the way in which Samsung Electronics implemented KM and help set the direction for those companies who consider employing KM into their corporate system.

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