• Journal of Advanced Navigation Technology
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• v.27 no.1
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• pp.146-153
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• 2023

In accordance with the industrial convergence regulation sandbox decision promoted by the Ministry of Trade, Industry and Energy, the "machine tool sharing service in the factory" applied for by MyMaker Co., Ltd., an industry-academia cooperation company, was granted a demonstration exception. While implementing this, in a situation where the ordering service part had to be developed as software, the company's domain problems were identified and analyzed, procedures were established, and a system was designed that met the related requirements. As a joint research and development project to solve the difficulties of the LINC+ industry, the order-to-order system was finally developed for shared factory services. In accordance with the procedure and requirements analysis, the planning, design, prototyping, and implementation production stages were carried out. Finally, it was confirmed that the final development contents were well implemented according to the requirements, and the resolution of the difficulties was confirmed through functional verification demonstrations.

• Magazine of the Korean Society of Agricultural Engineers
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• v.38 no.4
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• pp.110-124
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• 1996

This study was conducted to simulate long seres of synthetic monthly flows by multi-season first order Markov model with selection of best fitting frequency distribution, harmonic synthetic and harmonic regression models and to make a comparison of statistical parameters between observes and synthetic flows of five watersheds in Geum river system. The results obtained through this study can be summarized as follow. 1. Both gamma and two parameter lognormal distributions were found to be suitable ones for monthly flows in all watersheds by Kolmogorov-Smirnov test. 2. It was found that arithmetic mean values of synthetic monthly flows simulated by multi-season first order Markov model with gamma distribution are much closer to the results of the observed data in comparison with those of the other models in the applied watersheds. 3. The coefficients of variation, index of fluctuation for monthly flows simulated by multi-season first order Markov model with gamma distribution are appeared closer to those of the observed data in comparison with those of the other models in Geum river system. 4. Synthetic monthly flows were simulated over 100 years by multi-season first order Markov model with gamma distribution which is acknowledged as a suitable simulation modal in this study.

• Membrane and Water Treatment
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• v.8 no.1
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• pp.73-88
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• 2017

Adsorption kinetics of aqueous ferric ion ($Fe^{3+}$) onto bio-natural rice grains (BRG) have been studied in a batch system. The influence of contact time (0-180 minutes), the dosage of BRG adsorbent (10, 20, 40, and $60gL^{-1}$), and ambient temperature (27, 37, 47, and $57^{\circ}C$) for the adsorption system have been reported. The equilibrium time achieved after 20 minutes of adsorption contact time. The maximum removal of ferric ion is 99% by using $60gL^{-1}$ of BRG, $T=37^{\circ}C$, and $50mgL^{-1}$ ferric ion solution. Adsorption kinetic and diffusion models, such as pseudo-first order, pseudo-second order, and Weber-Morris intra-particle diffusion model, have been used to describe the adsorption rate and mechanism of the ferric ion onto BRG surface. The sorption data results are fitted by Lagergren pseudo-second order model ($R^2=1.0$). The kinetic parameters, rate constant, and sorption capacities have been calculated. The new information in this study suggests that BRG could adsorb ferric ion from water physiosorption during the first 5 minutes. Afterward, the electrostatic interaction between ferric ion and BGR-surface could take place as a very weak chemisorptions process. Thus, there is no significant change could be noticed in the FTIR spectra after adsorption. I recommend producing BGR as a bio-natural filtering material for removing the ferric ion from water.

• Journal of Preventive Medicine and Public Health
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• v.15 no.1
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• pp.197-203
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• 1982

A study was carried out in order to obtain the status of student sickness and medical care in University Health Service, Ewha Womans University. This study was based on the clinical records of University Health Service and hospitals 'for student insurance pay claims during the year of 1981. And the findings from the study were as follows; 1. A total number of student patients cared at University Health Service in 1981 was 9,822 and the incidence rate of primary cared was 773 per 1,000 students. 2. A total number of student patients cared at hospitals was 393 and the incidence rate of secondary cared was 31 per 1,000 students and 5 student out of 31 per 1000 was cared under the haspitalization. 3. The evacuation rate of student patients from University Health Service to hospital was 393 out of 9,822 student primary cared or 4.0 percent. 4. The order of 5 major diseases of primary cared in University Health Service was respiratory system diseases (36.6%), Digestive system diseases (17.4%), Skin and subcutaneous tissue diseases (16.0%), Symptoms and undetermined diagnosis (13.7%) and Nerve and sensory organ diseases (12.0%) respectively. 5. The disease order of student patients(333) cared in hospitals as out-patients was Skin and subcutaneous tissue diseases (40.3%), Nervous and Sensory organ disease (19.2%), Digestive system diseases (10.8%) respectively. 6. The disease order of student patients (60) cared in hospitals as in-patients was Digestive system diseases (35.0%), Respiratory system diseases (13.3%), Nerve and sensory organ diseases (10.0%), Infectious and parasitic diseases (10.0%), and Symptom and Undetermined diagonsis (10.0%) respectively. 7. The evacuation rate of student patients in University Health Service to hospital was varied according to disease groups; the lowest rate was the diseases evacuated to Internal Medicine Department 1.5% or 75 out of 5,072 patient primary cared and the highest rate was Neuropsychiatry department 63.7% or 7 out of 11 patients. 8. The monthly distribution of student patients in University Health Service was the highest in September (17.9%) and April (15.5%) each semester. 9. The monthly number of student patients treated in hospitals was the range 20 to 40 in out patients and 2 to 9 in in-patients. 10. The hospital ill days per case were $4.3{\pm}5.0$ days in out-patients and $9.7{\pm}9.5$ days in in-patients.

• Journal of Power System Engineering
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• v.19 no.2
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• pp.27-32
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• 2015

This paper describes a distance measurement system with high accuracy that utilizes a stereo-based camera and a pan-tilt unit for automatically maintaining the positional relationship between a vessel and a target on the side of a facility at a close range. The measurement system offers an advantage in that it can measure the distance to a target while tracking it. In order to improve the ability to control the position of a vessel between it and a target while maintaining the distance especially at a close range, the accuracy of the measurement system has to be improved. The accuracy of the distance measured by our system is increased with revisions of the conclusively generated data of distance measurement. We verified the accuracy of our system from an experiment, which generated results that had an accuracy of 30 mm for distances in the range between 2-8 m.

• Journal of East-West Nursing Research
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• v.18 no.2
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• pp.95-103
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• 2012

Purpose: This methodological study was done to develop a computerized telephone triage and consultation system for patients discharged with ophthalmic disease in order to provide more efficient practice guidelines for nurses, and evaluate the usability of the system. Methods: Development of the system consisted of six phases: strategic planning, analysis, design, implementation, evaluation, modification, and maintenance. Results: In the strategic planning phase, ophthalmic problems and nursing interventions of triage algorithms and practice guidelines were cross-mapped with the Omaha system. In the analysis phase, users requirements were identified. Then infrastructure including database, nursing knowledge base, and user interface were designed in the implementation phase. Usability and satisfaction of the system presented as very positive. Telephone consultation took about 2 minutes less than time in the previous system. The system was modified based on users' comments during the evaluation phase. Conclusion: This study was the first attempt in Korea to develop computerized triage system to prompt the quality of telephone consultation. It is suggestive that the computerized triage system may improve the quality of nursing.

• Journal of Advanced Marine Engineering and Technology
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• v.38 no.10
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• pp.1318-1326
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• 2014

The purpose of a tracking control system is to track a moving target and to find the exact information of the target. If the platform of the tracking control system is equipped on a moving vehicle such as a ship, the tracking control system will treat even the additional platform motion. In order to avoid the complexity comprising the tracking control system, a process to treat the platform motion, named stabilizing system, must be separated from the tracking control system. In this paper, a method to comprise an attitude control system for the platform stabilization is proposed using an adaptive fuzzy control which is applicable to the system with structural and parametric uncertainty. The suggested adaptive fuzzy control algorithm is the 2nd/1st-type indirect adaptive fuzzy control algorithm using the advantages of 1st-type and 2nd-type indirect adaptive fuzzy control algorithm. Several experiments using the implemented stabilizing system are executed for verifying the effectiveness of the suggested method.

• The Journal of Korean Medicine
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• v.20 no.4
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• pp.50-61
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• 2000

This study on the visits of the oriental medical night clinic of patients, was made to be used as reference data by examining and analyzing statistically the many actual conditions of patients who had been visited in Semyung University Attached Oriental Medical Hospital during the period from April, 1998 to March, 1999. The purpose of this survey was to understand the characteristics of patients, to evaluate the roles of Night Clinic of oriental medical hospital, and contribute to the systemic and efficient management of night clinic service. The results obtained were as follows: I. Distribution of sex: male 53% (421 cases), female 47% (379 cases) 2. The age distribution of patients showed the highest in under ten, followed by the thirties and fifties, forties and twenties in order. 3. The monthly distribution of patients showed the highest in October 1998, followed by May 1998 and February 1999 in order. 4. The daily distribution of patients showed the highest in Sunday, followed by Saturday, Monday, Friday and Tuesday in order. 5. The regional distribution revealed the highest in Jecheon with 76% of all patients, followed by Danyang in order. 6. The distribution of arrival time showed the highest in 7:00 pm～0:00 am (27%), followed by 5:30 pm～7:00 pm (23%) in order. 7. The admission rate in patients was 17%. Among them direct visiting rate was 85%. Circulatory systemic disease was the highest. 8. The highest incidences by disease were of motor system with 48% (394cases), followed by diseases in circulatory system with 19% (l48cases). The majority of the patients 67% was connected with two diseases. 9. The chief complaint of pediatric diseases was febrile seizure with 64% (32cases), digestive disease was abdominal pain with 44% (90cases), circulatory diseases was motor disturbance with 43% (83cases), motor system disease was leg pain with 37% (l19cases), respiratory disease was fever with 46% ( 41 cases). 10. In the treatment method, a major portion of treatment methods was acupuncture treatment with 32% (373cases), followed by acupuncture & herbal medicine treatment with 23% (275cases). The most commonly used herbal medicines were Hangsapyunguisan(l6%) and Ojeoksan(l4%).

• Journal of the Korean housing association
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• v.19 no.2
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• pp.105-114
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• 2008

This study is conducted to investigate the organization of Cheongunri in Cheong-song, as well as the characteristics of folk houses. In this study, 82 folk houses, including the villages, are surveyed; among them, 15 houses are intensively analyzed in terms of the structure of plane and the arrangement of space. The focus of study is on discovering an internal order system of villages and tracing a relationship between the characteristics of houses and the environmental factors. According to the results of the study, an Intrinsic order in Cheongunri is found to be related to the mountain axis, the road system, and the flow axis; and the form of folk houses is also found to be influenced by this order. The major characteristics of folk houses can be summarized as follows: (1) Most of the houses face east along the mountain axis, whereas houses influenced by the flow axis tend to face south. (2) The side of houses tend to be open to the outside, showing external directionality. This characteristic seems to be closely related to the direction of the main gate in a house site. (3) The layout of the main quarters and the annex quarters is found to be related to the direction of the main gate in a house site. Especially, the characteristics of courtyard are found to be affected by the annex quarters. From the above results, it can be concluded that villages have an intrinsic order depending on the geographic characteristics of a surrounding natural environment, and folk houses have also changed accordingly.

• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.64.2-64
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• 2002

Contents 1. Introduction $\textbullet$ Contents 2. System description $\textbullet$ Contents 3. Desired feedback control and function approximation $\textbullet$ Contents 4. Robust adaptive controller design $\textbullet$ Contents 5. Simulation study $\textbullet$ Contents 6. Conclusion