• Journal of Society of Preventive Korean Medicine
• /
• v.3 no.2
• /
• pp.101-128
• /
• 1999

A study on disease treated at oriental medical treatment facilities (OMTF) and patients' satisfaction levels was conducted in order to figure out why the patients visited oriental medical doctors and the level of satisfaction of the patients for the services offered to them by oriental medical doctors. This study was performed from March 2 through May 31, 1998 by interviewing 1.532 persons living in major and small cities in korea. The results obtained were summarized as follows; 1. The general characteristics of subjects. The highest portion of each part was, 66.9% female, persons in the age group of over 60's 22.7%, high school graduated 34.9%, house wife 30.8%, The married 65.0%, Buddhist 36.9%, maj or city residents 60.2%, company covered insurance benefiter 39.0% and etc. 2. 40.5% of subjects visited OMTF for skeletal and connective tissue diseases. 21.5% for digestive system diseases. 16.2% for respiratory system diseases. 13.3% for circulatory system diseases and 9.0% for neurological problems. 3. 42.7% of males visited OMTF for skeletal and connective tissue diseases, which were the highest and respiratory system disorders, digestive system disorders, circulatory system disorders and neurological diseases in order. 39.4% of females visited OMTF for skeletal and connective tissue disorders which were the highest and other conditions such as digestive system, circulatory, respiratory, and neurological disorders in order. 4. The males with circulatory system disorders were treated by herbal medicine, combination of herbal medicine and acupuncture, only in order. The females with the some conditions above were treated by combination of herbal medicine and herbal medical and acupuncture only in order. The males and females with respiratory system and digestive system diseases were treated by herbal medicine, combination of herbal medicine and acupuncture only in order. But the males and females with skeletal and connective tissue diseases were by acupuncture are the highest in order. 5. The females and persons in the age group of over 60' s and house wife. the not married, the unhealthy persons, residents living in small cities, the persons with high income by medical treatments frequency in circulatory system diseases are the highest. 6, The females, middle school graduated and the married, persons in the age group of over 60's, unemployed, sales and service industry workers, Buddhists, major city residents, the unhealthy persons, the persons with middle income by medical treatments frequency in respiratory system diseases are the highest. 7. The females, persons in the age group of over 60's, under graduated or elementary school graduated, the unemployed and house wife, the unmarried, Buddhists, major city residents, the unhealthy persons, the persons with low income by medical treatments frequency in digestive system diseases are the highest. 8. The males, major city residents, old ages, under graduated or elementary school graduated, go earn officials, people grown in small city, the persons who had health insurance policies, the persons with low income, the unhealthy persons by medical treatments frequency in skeletal and connective tissue disorders diseases. 9. 50.8% of the respondents said that the treatments at the OMTF were very effective. 47.7% of them said that the treatments were effective. The males, persons in the age group of 40's, high school graduates, official workes, the married, the persons who did not have religion, major city residents, the persons who had health insurance policies, the persons with high income and the healthy persons said that the treatment effects at OMTF were satisfactory. 10. The patients' satisfaction rate for OMTF on each disease is, 1st. Musculo-Skeletal system(most satisfied), 2nd. the pregnancy & delivery complications, 3rd. Eye & ophthalmics, 4th. Respiratory system, 5th. Mental & bodily disorder, 6th. Digestive system and etc. 11. The factors affect OMTF are age, satisfaction for OMTF, current disease, religion, efficiency of Oriental Medicine, health condition and etc. This explained power of variable were 39.0%. 12. The satisfied factors for OMTF is correlate to educational level, and economical variables.

• Journal of the Korean Society for Geothermal and Hydrothermal Energy
• /
• v.7 no.1
• /
• pp.45-50
• /
• 2011

Hybrid desiccant cooling system(HDCS) consists of desiccant rotor, regenerative evaporative cooler, heat pump and district heating hot water coil. In this study, TRNSYS and EES, dynamic and steady simulation programs were used for studying hybrid desiccant cooling system which is applied to an apartment house from June to August. The results show that power consumption of the hybrid desiccant cooling system is 70 kWh in June, 199 kWh in July and 241 kWh in August. Sensible and latent heats removed by the hybrid desiccant cooling system are 300 kWh, 301 kWh in June, 610 kWh, 858 kWh in July and 719 kWh, 1010 kWh in August. COP of the hybrid desiccant cooling system is 8.6 in June, 7.4 in July and 7.2 in August. COP of the hybrid desiccant cooling system decreases when latent heat load increases. Operation time of the system is 70 hours in June, 190 hours in July and 229 hours in August. Since the cooling load is largest in August, the operation time of August is longest for maintaining the indoor temperature at $26^{\circ}C$. Due to the characteristics of hybrid desiccant cooling system for efficiently handling both sensible and latent loads, this system can handle sensible and latent heat loads efficiently in summer.

• Journal of Software Assessment and Valuation
• /
• v.15 no.1
• /
• pp.55-62
• /
• 2019

The needs for small size and low power consumption of information devices is being implemented with SOC technology that implements the program on a single chip in Internet of Thing. Copyright disputes due to piracy are increasing in semiconductor chips as well, arising from disputes in the chip implementation of the design house and chip implementation by the illegal use of the source code. However, since the final chip implementation is made in the design house, it is difficult to protect the copyright. In this paper, we deal with the analysis method for extracting similarity and the criteria for setting similarity judgment in the dispute of source code written in HDL language. Especially, the chip which is manufactured based on the same specification will be divided into the same configuration and the code type.

• Proceedings of the SAREK Conference
• /
• 2007.11a
• /
• pp.459-465
• /
• 2007

This study was conducted to calculate the LCC of a apartment complex with a type of heating system, district heating and cogeneration system. For the purpose of analyzing LCC according to size of apartment complex, 500, 1,500 and 4,000 houses of model apartment selected. This research performs design of heating system and the life cycle cost analysis including an initial cost, energy cost, maintenance and operation cost, replacement cost and renovation cost during the project period(15years). According to the calculated results, 1) Initial cost of cogeneration system with 500, 1500 and 4000 houses is higher than district heating system each of 20%, 13%, 12%. 2) In case of cogeneration system, the payback period by electric generation is 5.21, 4.92 and 4.47 years and saving cost was calculated 29 billion won, 94 billion won and 262 billion won after payback period. 3) Cogeneration system LCC was 1.12, 1.07 and 1.06 times larger than district system with the size of apartment complex. According to the case of this study district heating system is more efficient than cogeneration system in terms of the reduction of LCC. 4) Gas Engine Co-generation System is more efficient than other systems because it can collect progressive part from electric charge progressive stage system. However, the efficiency is decreasing because of raising of fuel bills(LNG) and lowering of power rate for house use. Especially the engine is foreign-made so the cost of maintenance and repair is high and the technical expert is short. 5) District heating is also affected by fuel bills so we should improve energy efficiency through recovering of waste heat(incineration heat, etc.). Also, we should supply district cooling on the pattern of heat using of let the temperature high in winter and low in summer.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.12 no.6
• /
• pp.2718-2721
• /
• 2011

This research developed a remote communication system for automatic water meter reading and charge calculation from the field of a house or apartment complexes within the same district. Developed system was applied to perform measurements of the pulse-sensing technology, the minimum power consumption, temperature compensation, short-range wireless communications technology, the handset and wireless communication capabilities of the DB management embedded software to efficiently control. Through this reading-related tasks that are required in a temporal, material and human resources can be minimized.

• 한국태양에너지학회:학술대회논문집
• /
• 2012.03a
• /
• pp.171-176
• /
• 2012

This research on building Integrated Photovoltaic System replacing windows and doors with amorphous silicon thin film PV windows and doors installing same exact mount on Mock-up. The windows and doors should be installed in different angle and bearing so that we can analyse the amount of electricity from them. The objective of the research is to evaluate and investigate the relationship between factors(intensity of solar radiation, PV window surface temporature, incidence angle, and sky conditions) that affects performance of PV window and performance. The range and method of this research is to establish mornitoring system and analysis the date from the mornitoring system to evaluate the performance of PV windows that has thin film of solar battery. We should evaluate the insolation according to the position of PV window, output, and surface temperature according to months and seasons so that we can figure out the relationship between these. And we should investigate the relationship between performance and efficiency according to incidence angle and sky condition so that we can figure out the correlation between factors and performance.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.15 no.1
• /
• pp.205-210
• /
• 2020

Children should be provided with the right to be protected by adults, related organizations, or countries because they lack power, situation recognition ability, and situation judgment ability compared to adults. Also, children's accidents and accidents caused by neglect of management occur every year. Currently, there are about 3 to 20 children managed by one teacher in a daycare center, and it is very difficult for teachers to care for all children as many children have to be managed. Especially, when outdoor activities are conducted in open space, children's activities are expanded compared to the in-house, and children who do not follow the control of the in-house teacher may occur, so there is a limit to the control and management of children depending on the viewpoint of teachers. In this study, we designed and implemented IoT terminal and system to provide safety to children and to provide convenience to guardians and teachers by systemizing the location or interval between children and in-service teachers using portable devices that can communicate with each other. It is hoped that this will contribute to the safety of infants.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.13 no.4
• /
• pp.107-112
• /
• 2007

The vibration generated on shipboard is very important because it greatly affects on the comfortable mind of passenger and working conditions of crews. Shipboard vibration is closely concerned with the development of propulsion method and the type of main engine to decide speed of ship. To make the propulsion power, the main engine of ship have continuous explosion process in engine room, so the shipboard vibration is generated. The shipboard vibration causes the physiological and psychological damages to human body. In the case of the human body exposed to the shipboard vibration, the evaluation of human exposure to whole-body vibration is prescribed in ISO 6954 : 2000(E). In this paper, to evaluate the shipboard working environment, two kinds of vibration levels onboard ship were measured and compared with one another between engine rooms, engine control rooms and wheel house by the regulation of ISO 6954 : 2000(E).

• Journal of Advanced Marine Engineering and Technology
• /
• v.37 no.8
• /
• pp.962-968
• /
• 2013

Problem of greenhouse gases associated with global warming and the world rise in fuel oil prices due to the depletion of fossil fuel has attracted attention. For this reason, maritime transport business, has shown interest in green-ship technology to reduce the consumption of fuel and reduce greenhouse gas for environmental protection. Power system of the ship is one of the most important factors for safe operation. Therefore, at design of ship power system, most of existing vessel used comparative large capacity generator in order to respond peak load such as bow thruster, crane and etc. In the navigation of ship, marine generators most would be operated at low load operation. In the low load operation of the generation rate of 50% or less, the operation efficiency of the generator it deteriorated, to consume more fuel oil. It also, it means that adversely effect the life of the generator. In this paper, studied how to apply for a secondary battery in container ship that relatively frequent arrival and departure in port. As a result, in order to apply the secondary battery to increase the operating efficiency of the generator during the voyage, it was confirmed that it is possible to reduce fuel consumption.

• 한국태양에너지학회:학술대회논문집
• /
• 2009.11a
• /
• pp.56-61
• /
• 2009

Paradigm depending only on fossil fuel for building heat source is rapidly changing. Accelerating the change, as it has been known, is obligation for reducing green house gas coming from use of fossil fuel, i.e. reaction to United Nations Framework Convention on Climate Change. In addition, factors such as high oil price, unstable supply, weapon of petroleum and oil peak, by replacing fossil fuel, contributes to advance of environmental friendly renewable energy which can be continuously reusable. Therefore, current new energy policies, beyond enhancing effectiveness of heat using equipments, are to make best efforts for national competitiveness. Our country supports 11 areas for new renewable energy including sun light, solar heat and wind power. Among those areas, ocean thermal energy specifies tidal power generation using tide of sea, wave and temperature differences, wave power generation and thermal power generation. But heat use of heat source from sea water itself has been excluded as non-utilized energy. In the future, sea water heat source which has not been used so far will be required to be specified as new renewable energy. This research is to survey local heating system in Europe using sea water, central solar heating plants, seasonal thermal energy store and to analyze large scale central solar heating plants in German. Seasonal thermal energy store necessarily need to be equipped with large scale thermal energy store. Currently operating central solar heating system is a effective method which significantly enhances sharing rate of solar heat in a way that stores excessive heat generating in summer and then replenish insufficient heat for winter. Construction cost for this system is primarily dependent on large scale seasonal heat store and this high priced heat store merely plays its role once per year. Since our country is faced with 3 directional sea, active research and development for using sea water heat as cooling and heating heat source is required for seashore villages and building units. This research suggests how to utilize new energy in a way that stores cooling heat of sea water into seasonal thermal energy store when temperature of sea water is its lowest temperature in February based on West Sea and then uses it as cooling heat source when cooling is necessary. Since this method utilizes seasonal thermal energy store from existing central solar heating plant for heating and cooling purpose respectively twice per year maximizing energy efficiency by achieving 2 seasonal thermal energy store, active research and development is necessarily required for the future.