• KSCE Journal of Civil and Environmental Engineering Research
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• v.38 no.6
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• pp.1013-1020
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• 2018

With the rapid industrialization and increase in population, more and more people are moving to live in cities. This urbanization trend is resulting in increased construction and development activities which associates with escalation of impervious surface. This in turn causes problems like groundwater depletion, higher flood peaks, and increased rate of soil loss from the watershed. Watershed management projects are being implemented around the globe concerning with the application of soil and water resources conservation practices. It is desirable that an entire watershed be evaluated based on soil and water conservation practices applied. In this study, water management categories of green building rating systems (GBRS) of South Korea, Taiwan, and the Philippines were discussed. The water management practices rating criteria of G-SEED (South Korea), BERDE (Philippines), and EEWH (Taiwan) were explored and compared. The insights of this study are expected to be projected to establish a comprehensive rating system for the evaluation of watersheds. The quantification of watershed management practices will help future planners to identify areas of potential water-related risks and counter the hazards more effectively.

• The Journal of the Korea Contents Association
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• v.21 no.3
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• pp.410-418
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• 2021

In a program that runs an engineering education certification, program outcomes refer to the knowledge, skills, and attitudes a student must have until graduation. In general, capstone design is used as a tool for evaluating program outcomes. This paper applies the intraclass correlation coefficient (ICC) to measure the raters' reliability in assessing program outcomes. Several raters evaluate program outcomes, and the result is used to obtain the raters' ICC. ICC measures the reliability of ratings or measurements for clusters - data that has been collected as groups or sorted into groups. If the ICC is close to 1, it means that the reliability among the raters is high. We evaluated the proposed method's usefulness through case analysis. As a method for assessing an evaluation tool's objectivity, multiple raters measure the same evaluation tool. As a result, we measured the ICC values for all POs, and analyzed the cause for the low measured POs. We applied this method to evaluate program outcomes of the Department of Computer Engineering in the past two years. As a result, we derived guidelines for improvement and program outcomes.

• Explosives and Blasting
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• v.15 no.1
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• pp.44-60
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• 1997

The design of underground cavern is basically governed by the mechanical properties of ground mass distributed around excavation. It is seldom possible to consider all the factors of ground mass properties in the evaluation of ground mass behavior as well as to classify those factors to a simple category. Until computer sciences have developed to calculate complex and laborious mechanical simulation of underground openings, ground behavior was quantitatively and qualitatively evaluated using empirical classification system. In this paper, analysis methods of ground behavior for underground cavern using the prediction of loosening zone, empirical method derived from rock mass classification and element stress analysis are described with chronological sequence.

• The Journal of Engineering Geology
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• v.1 no.1
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• pp.38-53
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• 1991

The design of underground cavern is basically governed by the mechanical properties of ground mass distributed around excavation. It is seldom possible to consider all the factors of ground mass properties in the evaluation of ground mass behavior as well as to classify those factors to a simple category. Until computer sciences have developed to calculate complex and laborious mechanical simulation of underground openings, ground behavior was quantitatively and qualitatively evaluated using empirical classification system. In this paper, analysis methods of ground behavior for underground cavern using the prediction of loosening zone, empirical method derived from rock mass classification and element stress analysis are described with chronological sequence.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.8 no.5
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• pp.1159-1165
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• 2007

This study aims to determine the effects of sample movement and storage on sample disturbance. To this end, non-disturbed samples collected from the OOregion, Gwangyang City, Jeonranam-do. Then, unconfined compression and consolidation tests were performed on the samples in the field, Seoul Lab and Seoul Lab after 4 weeks. Based on failure strain rate$(\epsilon_f)$, volume strain rate$(\epsilon_{\nu})$, and void ratio change$({\Delta}e/e_0)$ obtained from the test results, sample disturbance was evaluated. The sample disturbance level was used to compare and analyze the influences of transportation and storage on sample disturbance.

• The Journal of Health Technology Assessment
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• v.6 no.2
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• pp.106-113
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• 2018

Objectives: The purpose of the study was to estimate the economic burden of stroke in Korea using post stroke disability grades and to measure smoking attributed economic burden. Methods: The disability grade of stroke patient was assessed for stroke patients who did not have a history of stroke before from a large cohort study in Korea. Treatment costs of patients were estimated by the National Health Insurance Service annual statistical report and care cost was estimated by the need of care defined by the assessed disability grades of patients. The population attributable fraction from WHO was used to calculate the proportion of cost due to smoking. Results: The study revealed that the cost of the stroke in 2015 was about 3.228 trillion won, while the care-giver cost was approximately 176 billion won. The cost of the smoking attributed stroke was about 724 billion won. Conclusion: This study is useful for estimating the cost of smoking considering the post-stroke disability and the results is important for achieving the national goal of extending healthy life from the Fourth National Health Promotion Plan.

• Journal of the Korean Applied Science and Technology
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• v.33 no.3
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• pp.507-520
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• 2016

This research was performed to evaluate incineration facilities with different scale and type using performance index. Incineration facilities of 28 units, which occupying about 15% of 184 units in nationwide, were selected for questionnaire survey. The facilities were classified in scale with large(${\geq}100t/d$), middle(50~<100 t/d), small(<50 t/d) ones, and in type with stoker, pyrolysis, fluidized bed. Performance index was composed of technological, economical, and environmental items, which have 6, 10, and 30 kinds of questions, respectively. As a result of scale evaluation, large scale facility has higher score than small one in all technological, economical, and environmental items. In overall evaluation of the facilities with different type, stoker incinerator has higher score of 65.3 than 59.0 of fludized bed and 58.3 of pyrolysis. It was shown that there was significant difference in economical evaluation field, in all technological, economical, and environmental items.

• The Korean Journal of Applied Statistics
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• v.24 no.2
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• pp.435-443
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• 2011

On March 2011, an annual salary plan was applied to new faculty members in National Colleges and Universities. In 2015, all tenured faculty members will receive salaries based on annual performance evaluations. The efforts and accomplishments of faculty are normally assessed according to a standard formula of 40% teaching, 40% research and 20% service. In almost all colleges and universities, student course evaluations may be considered as the only measure of the perceived quality of the courses offered by the faculty member. The mandatory course evaluations are becoming prevalent in Korea. The results of course evaluations do not reflect the fairness and the appropriateness of the quality of the course taught by the faculty member and should not be considered under the teaching evaluation criteria.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.9
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• pp.2460-2470
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• 2009

In this study, the parameter extraction for evaluation of the anesthesia depth in each anesthesia stages was conducted. An object of the this experiment study has studied 5 adult patients (mean $\pm$ SD age:$42{\pm}9.13$), ASA classification I and II, undergoing surgery of obstetrics and gynecology. Anaesthesia was maintained with Enflurane. HRV signal was created by R-peak detection algorithm form ECG signal. The HRV data were preprocessing algorithm. It has tried find out the anesthesia parameter which responds the anesthesia events and shows objective anesthesia depth according to anesthesia stage including pre-anesthesia, induction, maintenance, awake and post-anesthesia. In this study, proposed algorithm to analysis the HRV(heart rate variability) signal using wavelet transform in anesthesia stage. Three sorts of wavelet functions applied to PSD. In the result, all of the results were showed similarly. But experiment results of Daubeches 10 is better. Therefore, this parameter is the best parameter in the evaluation of anesthesia stage.

• Geophysics and Geophysical Exploration
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• v.7 no.2
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• pp.121-129
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• 2004

The geostatistical approach was applied to integrate MT (Magneto-telluric) resistivity data and borehole information for the spatial RMR (Rock Mass Rating) evaluation. Generally, resistivity of the subsurface is believed to be positively related to the RMR, thus the resistivity and borehole RMR information was combined in a geostatistical approach. To relate the two different sets of data, we take the MT resistivity data as secondary information and estimate the RMR mean values at unsampled points by identification of the resistivity to the borehole data. Two types of approach are performed for the estimation of RMR mean values. Then the residuals of the RMR values around the borehole sites are geostatistically modeled to infer the spatial structure of difference between real RMR values and estimated mean values. Finally, this geostatistical estimation is added to the previous means. The result applied to a real situation shows prominent improvements to reflect the subsurface structure and spatial resolution of RMR information.