• Journal of Environmental Science International
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• v.12 no.9
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• pp.911-919
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• 2003

When the city water was heated for the optimum use of unused energy, the energy flows and losses were calculated and evaluated to improve the value of heated water systems at dwelling side. To obtain this purpose, it was simulated on heat flows under two conditions like with heat pumps or not and calculated the energy sayings. Furthermore, recycling water system was suggested for enhancing the value of heated water system. From this results, the energy flows without heat pumps showed that it was 3-4 percents of heat losses from pipes, 62 percents of energy savings from hot water uses and 34 percents of unutilized heat. When the heated water system adopt the recycling water system at dwelling side, it was improved 12 percents of total energy sayings.

• Journal of the Korean Solar Energy Society
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• v.24 no.4
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• pp.35-43
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• 2004

Illuminance and luminous levels in a small office space due to daylight were calculated to analyze the impact of daylight on contrast and lighting energy savings. Computer simulations were performed for four blind conditions under a clear sky condition. The blind conditions significantly impacted the illuminance an4 luminance level. Visual performance scores were calculated according to the transfer function that uses absolute contrast between target and background surface. The blind condition that had 45 tilted angle toward ground provided good contrast and performance scores. Using a control algorithm of an automated daylight dimming control system lighting energy sayings were predicted. For all blind conditions minimum lighting energy was consumed.

• Proceedings of the KIEE Conference
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• 2003.11b
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• pp.279-282
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• 2003

This paper proposes a medium-access control(MAC) protocol designed for wireless multi-hop sensor networks which is used for connecting physical world and cyber computing space. Wireless multi-hop sensor networks use battery-operated computing and sensing device. We expect sensor networks to be deployed in an ad hoc fashion, with nodes remaining inactive for long time, but becoming suddenly active when specific event is detected. These characteristics of multi-hop sensor networks and applications motivate a MAC that is different from traditional wireless MACs about power conservation scheme, such as IEEE 802.11. Proposed MAC uses a few techniques to reduce energy consumption. Result show that proposed MAC obtains more energy sayings.

• Textile Coloration and Finishing
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• v.10 no.2
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• pp.18-28
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• 1998

in order to overcome disadvantage of the conventional two bath dyeing method of polyester/cotton blends, it had prompted significant effort to the development of the one bath dyeing method which can accomplish sayings in time, energy and water usage. Also, when dyeing polyester/cotton blends by the one bath dyeing method, the high salt concentrations needed for the reactive dye can cause particles of disperse dye, used for the polyester component, to aggregate. A supplementary problem that can occasionally be happened is the change of hue that occurs on dyed polyester in an alkaline dyebath. To improve dyeing property of polyester/cotton blends, cotton component was pretreated with epichlolohydrine-trimethylamine hydrochloride in aqueous solution of sodium hydroxide to produce a cationized cotton that can be dyed under neutral conditions with reactive dye in a non-electrolytic or il little electrolytic dyebath. The one bath dyeing method of polyester/cationized cotton blends with disperse dye/reactive dye mixture resulted in a satisfactory dyeing property and color yield in comparison with ordinary two bath dyeing method.

• Journal of Korea Multimedia Society
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• v.10 no.1
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• pp.139-146
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• 2007

Many researches had been gone about method to track moving object using wireless sensor network. We examined tradeoffs that exist between quantity of energy and correctness of tracking, and we confirmed that can get more energy sayings through improved motion prediction method. The consumed energy in the tracking is used by sensor node for sensing the object, and tracking correctness is a differ once of actual object position from calculated value by sensing. Some tracking methods and controlling parameters causes a variation of tracking correctness and energy consuming, we can get best energy effectiveness by motion prediction algorithm. Furthermore, we get better tracking quality and energy effectiveness through using a motion prediction algorithm that consider acceleration. By the simulation, we know that if we use an accurate motion prediction algorithm, node activation range that is used for target's predicted position should be restricted to sensing range of sensor is better.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.46 no.5
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• pp.44-51
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• 2009

In this paper, an air conditioner peak power control system using electric power line communication has been developed. The air conditioner power control system using RS-485 communication method is hard to install on the existing buildings due to difficulty in cabling, and the system using wireless communication methods has a weak point of not being able to be used in close space, while the developed system has its own advantages of overcoming the above mentioned obstacles. In addition, the system is extended to support not only single-phase electricity system but also three-phase four-wire electricity system, and therefore can be installed anywhere in the domestic environment. The system also has enhanced the ease of deployment, operational stability and economical efficiency by compact circuit design. Considering the current state requiring the energy sayings, the system would greatly contribute to the widespread use of the air conditioner power control system. The superiority in the performance and stability of the system has been proved by the design verification of each component such as remote air conditioner controller, electric power line gateway and so on, and the field test of the whole system.

• Journal of Korean Medical classics
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• v.18 no.2 s.29
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• pp.205-212
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• 2005

Zhang Zi-He is one of the Jin&Yuan's four masters, and he used Dong-Xia method well, as well as he is one a medical man who contributed to the development of the medicine. He valued the pathogen. He recognized that the pathogen is a great cause of an attack of a disease, so, first, we have to get rid of pathogen, and it makes the Vital essence and energy recovered. He said, we have to get rid of the pathogen thouroughly. He used 'Wei Ci'-using fei zhen and densely puntuating many times and bleeding much, so the pathogen can't remain. He said if we bleed, it is same as the sweating. And about ${\ulcorner}Nei Jing{\lrcorner}$'s meaning, he said that bleeding is same as sweating and after bleeding, diaphoresis is not required, but it is good to bleed after sweating. He said that we removeing the fire and we can circulate Qi and blood. He set count on the body's circulation of our body, and it is the great cause of a disease. So, He quoted the ${\ulcorner}Nei Jing{\lrcorner}$'s sayings, and emphasized the importane of the circulation of qi and blood. And this Zhang Zi-He's way is in relation with 'Liu He Jian's fire and heat theory.

• Korean Journal of Social Welfare
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• v.64 no.1
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• pp.325-355
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• 2012

This study was aimed to seek the essential meaning of the Strengths Model based experience of the mothers of the children with ADHD. To achieve such goal, a phenomenological study was carried out from April 2010 to April 2011 covering about 12 months in the way of 2~3 times of interviewing with 14 mothers of the children with ADHD. As a result, the essence of the experiences of those mothers was interpreted as 'the running of unwanted marathon struggling themselves to complete it'. The joining in the unwanted marathon turned out to have led 'me' the mother of the children with ADHD into miserable pain, but that is the 'energy' for 'my child' to endure the world. The essence of those mothers' experiences were divided into eight processes by timely constitution. They firstly experience 'a serial confusion' by their children's odd behaviour which turns out to be 'a semiconscious feeling by the diagnosis with 'ADHD' but then they make full efforts for their children accepting their 'maternal fate'. In that process, they participate in the unwanted marathon with the feeling of misery and gratitude for the 'sayings of teachers which play the roles of shot and grace'. The process was expressed as 'marathon like pain'. They make a resolve to live positively in the midst of lonely struggle unable to give up toward the finish line for 'my child and myself'. They encourage themselves for their children, but that's not easy process. Nevertheless, they gain enduring energy supported by their child, family and specialists. Those mothers keep running today also for their 'beloved doves enduring the ongoing hardship' from the raising of abnormal child toward the finish line of the marathon they have to run for even though the 'finish line' may turn into' 'starting point' again'. This researcher submits here the maternal experiences above as the task to practice social welfare for the mothers of the children with ADHD and the children themselves.

• Korean Journal of Plant Resources
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• v.13 no.3
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• pp.162-170
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• 2000

This study quantified the effects of urban greenspace on microclimate amelioration and atmospheric $CO_2$ reduction for several residential districts selected in Korea and Japan. The study also explored fire obstruction by urban trees to develop systematic planting guidelines. Transpiration by a Zelkova serrata tree (diameter at breast height: 15 cm) in a day of August equaled cooling effect of about 3 air conditioners running for 12 hours. Average air temperature for the growing season was 0.5$^{\circ}C$ and 1.2$^{\circ}C$ cooler, respectively, in districts with 12% and 22% cover of woody plants than in a district with no vegetation. Annual $CO_2$ uptake and $O_2$ production by woody plants were 3 times greater in a district which was 2 times higher in their cover. Woody plants played, in a district with their 22% cover, an important role through offsetting total $CO_2$ emission from the district by about 3% annually, and through producing 10% of annual $O_2$ requirement by all residents within the district. Appropriate planning strategies of residential greenspace, including species selection, planting layout, greenspace enlargement, and maintenance were suggested to improve microclimate amelioration, air purification, and fire obstruction.