• Research in Community and Public Health Nursing
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• v.29 no.3
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• pp.335-348
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• 2018

Purpose: This study has been conducted to develop and examine a health promotion empowerment program using a lay health leader for frail elderly. Methods: The research was organized in a nonequivalent control group pre-post test design. Data collection was performed from August 18 to October 8, 2015. The subjects included 76 frail elders aged over 65 registered in home visiting services (Experimental group=39, Control group=37). A health promotion empowerment program using a resident volunteer as a lay health leader was run for 8 weeks. Health factors (health promotion behavior, perceived health status and frailty) and empowerment factors (empowerment, social participation) were assessed. The data were analyzed by using the SPSS/WIN 18.0 program. Results: After the program, health promotion behavior, perceived health status and social participation increased in the experimental group more significantly than in the control group, but frailty decreased in the experimental group greater than in the control group. Conclusion: The health promotion empowerment program using a resident volunteer as a lay health leader was effective. Therefore, the health promotion empowerment program needs to be expanded to other frail elders. Also, a health leader should be recommended as a public health resource and systematically managed.

• Journal of Korean Public Health Nursing
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• v.27 no.1
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• pp.50-63
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• 2013

Purpose: The purpose of this research was to develop and evaluate the effects of an empowerment program. Method: We developed an 8-week empowerment program to decrease cancer symptoms and increase self-efficacy, self-esteem, and empowerment. This program includes aspects concerning self-knowledge and management, self-help groups, self-advocacy, resource network, and laughter therapy. We evaluated the effects of this program on 32 home-based cancer patients (one group pretest-posttest design). The data collection was performed from August 22, 2011 to October 13, 2011. Data were analyzed using the SPSS/WIN 18.0 program. Result: There were significant differences in self-esteem derived from the empowerment program. However, there were no significant differences in cancer symptoms, self-efficacy, and empowerment after the program. Conclusion: More research, using a control group pretest-posttest design that considers an appropriate intervention duration, is needed to more accurately examine the effects of the program. We expect this intervention to improve the empowerment of home-based cancer patients.

• Journal of Forest and Environmental Science
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• v.28 no.2
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• pp.97-105
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• 2012

A Gangwon region consisting of over 80% of forest area has industries that have been developed by utilizing its clean region image. However, the recent climate change has increased the forest disease & insect pest as well as the forest fire and the major cause is known to be the increase in the frequency of a drought occurrence. From the aspect of climate change, it can be said that drought and forest are important in every aspect of the adaptation and mitigation of climate change measure as they increase forest disease & insect pest that leads to desolation of usable forest resource. In addition, the increase of forest fire reduces resources that can absorb greenhouse gas, which leads to increase in green house emission. The purpose of this study is to provide a motive for concentrating administrative power for protecting forest in a Gangwon region by selecting a drought management needed local government through a drought forecast according to the climate change scenario of a Gangwon region.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.11 no.1
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• pp.46-49
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• 2012

Gears are reliable and efficient power transmission elements. They have been widely used in all kinds of machinery. Nowadays, resource conservation energy conservation environmental improvements from the request of the compact, light weight, high efficiency, low cost Higher efficiency is required. Tooth root and bottom profiles of cylindrical gears affect bending fatigue life, but they are hard to measure with conventional gear measuring machine(GMM), because GMM is normally customized to measure only gear working flanks. The authors try to develop a new type of GMM by installing an extra 3D scanning probe and control software to measure tooth root and bottom profiles. First, in order to measure in various directions, a 3D scanning probe has been attached to the GMM developed. Next, calibration algorithm has been developed. Deviations of the calibration results are measured and it is found that systematic error must be caused by heat from driving motors. A new alternative GMM with driving motors generating less heat was designed and two GMMs are compared. Finally, 3 Dimension measurement of tooth root and bottom profiles of cylindrical gears is described.

• Journal of Digital Contents Society
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• v.13 no.3
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• pp.353-358
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• 2012

Wireless sensor networks consist of resource constraint devices which typically send data measured by sensors attached to the end devices towards a coordinator. The most often used medium access control protocol used in wireless sensor networks is the standard IEEE 802.15.4, where it is wireless standard introduced for low power, low cost wireless communication with moderate data rates. In this paper, we present implementation of both the IEEE 802.15.4 protocol stack and UART interface on the TI CC2530. We show that data via UART of our implemented IEEE 802.15.4 board are transmitted correctly in terms of captured frames.

• 한국태양에너지학회:학술대회논문집
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• 2012.03a
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• pp.522-528
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• 2012

Currently, the energy consumption of electric lighting in an office building is accounted for more than 30% of the total energy consumption. In order to reduce the energy consumed by the indoor lighting, the daylight as a natural energy resource can play an important role in energy savings. The daylight can have positive impacts on improvement of work efficiency and productivity, and also make people feel more psychologically stable. Moreover, by using the daylight, we can definitely reduce the energy consumption in office buildings. Thus, the purpose of this study is to determine the LED dimming ratio depending on the ratio by calculating the amount of artificial illumination required according to the change of daylight by using the light simulation software that can quantify and visualize the performance of daylight. As a result, the energy savings could be obtained up to 30%.

• Journal of the Korean Solar Energy Society
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• v.37 no.6
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• pp.13-24
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• 2017

Finding promising wind farm sites in islands of Korea is performed in this study. Total ten islands that have been measuring wind speed and direction using automatic weather stations for at least ten years were subjects of this study. Conditions for finding suitable wind farm sites including wind resource and various exclusion factors were applied and two islands that were found not to be suitable for wind farms were excluded. Micositing of a single wind turbine for the remaining eight islands was performed to estimate the annual energy production and the capacity factor.. Based on the simulation results, the wind farm sites selected within the eight islands were found to be suitable for wind power. The capacity factors were varied between 22.3% and 33.0% for a 100 kW wind turbine having a hub height of 30 m.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.23 no.5
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• pp.815-824
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• 2013

Traditionally embedded microprocessors is considered as a device for low- and simple-computations because of its limited computing power and constrained resources. However high-end embedded devices have been developed and many applications are getting feasible in the embedded devices. To provide secure and robust service environments, security on embedded devices are in order. Recently many research results on embedded devices have been proposed. In this paper, we explore various cryptography implementation results on representative 8-, 16- and 32-bit embedded processors including AVR, MSP and ARM. This report would be helpful for following researchers who are interested in cryptography implementation techniques on resource constrained devices.

• Geomechanics and Engineering
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• v.20 no.6
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• pp.517-525
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• 2020

The long-term stability of rock engineering is significantly affected by the time-dependent deformation behavior of rock, which is an important mechanical property of rock for engineering design. Although the hard rocks show small creep deformation, it cannot be ignored under high-stress condition during deep excavation. The inner mechanism of creep is complicated, therefore, it is necessary to investigate the relationship between microscopic creep mechanism and the macro creep behavior of rock. Microscopic numerical modeling of sandstone creep was performed in the investigation. A numerical sandstone sample was generated and Parallel Bond contact and Burger's contact model were assigned to the contacts between particles in DEM simulation. Sensitivity analysis of the microscopic creep parameters was conducted to explore how microscopic parameters affect the macroscopic creep deformation. The results show that the microscopic creep parameters have linear correlations with the corresponding macroscopic creep parameters, whereas the friction coefficient shows power function with peak strength and Young's modulus, respectively. Moreover, the microscopic parameters were calibrated. The creep modeling curve is in good agreement with the verification test result. Finally, the creep curves under one-step loading and multi-step loading were compared. This investigation can act as a helpful reference for modeling rock creep behavior from a microscopic mechanism perspective.

• Proceedings of the KIPE Conference
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• 2002.07a
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• pp.225-227
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• 2002

Recently, there are many researches in several places for a new resource, ahead. Also, Water of $70\%$ in the earth it is interested and studied by around world. Long ago, in the side processing-use, it is making study the welding of Hydrogen- oxygen Gas, which is burned to acquired it(hydrogen+oxygen) by electric-disintegration into water, which has perfect-burning rather than exhaust carbon and it has excellent-sides in financials and efficiencies than existing-gas welding by sparking-characteristics of Hydrogen Oxygen gas. Therefore, with constant current source, it is intended to make a producing gas ratio through designing and making for the use of SCR rectifier of existing-formula and then in this paper it hopefully is coming up to characteristics of welding machine and producer of hydrogen oxygen gas with current-controlled type.