• 한국정보통신학회논문지
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• 제8권4호
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• pp.793-797
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• 2004

공간적인 환경에서 정보를 받는 무선 센서망은 배터리를 사용하며, 에드혹과 같은 방식으로 배포되며, 센서가 감지 되었을 때 정보를 전송하게 된다. 무선 센서망에서는 전력 보존, 자가-구성이 우선시 되며, 노드의 공정성, 잠복기간은 중요하기 않기 때문에 기존의 IEEE802.11에서의 무선 MAC과 다른 특징을 가진다. 따라서 본논문에서는 무선 센서망에서 우선시 되는 특성중 하나인 효율적인 전력 관리를 위해 각각의 센서 노드들의 전력 소모를 최소화 하기위해 제시된 방법을 구현 하여, 기존의 무선 MAC과 비교 하여 소비 전력과 충돌을 비교 분석 하기로 한다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2004년도 춘계종합학술대회
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• pp.182-185
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• 2004

공간적인 환경에서 정보를 받는 무선 센서망은 배터리를 사용하며, 에드혹과 같은 방식으로 배포되며, 센서가 감지되었을 때 정보를 전송하게 된다. 무선 센서망에서는 전력 보존, 자가-구성이 우선시 되며, 노드의 공정성, 잠복기간은 중요하기 않기 때문에 기존의 IEEE802.11에서의 무선 MAC과 다른 특징을 가진다. 따라서 본 논문에서는 무선 센서망에서 우선시 되는 특성중 하나인 효율적인 전력 관리를 위해 각각의 센서 노드들의 전력 소모를 최소화하기 위해 제시된 방법을 구현하여, 기존의 무선 MAC과 비교하여 소비 전력과 충돌을 비교 분석하기로 한다.

• 한국태양에너지학회 논문집
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• 제32권2호
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• pp.58-63
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• 2012

As the exterior of building has been considered one of th important parts, the use of glass that is suitable to express various appearances gets raised. However, windows have 6~7times lower insulating performance than insulated walls. Lately, highly efficient windows are required as the needs for reduction of energy consumption come to the force. Therefore, Nowadays more people use cooling systems in summer, more the use of Low-E glazing is increasing. Because it is good to block Solar Radiant Energy which can cause much of heat loss while cooling system is working. This study measures U-value of the double Low-E glazing window and commonly used single Low-E glazing window. And then the effect of each window on the efficiency rating has been analyzed applying to the certification system of the building energy efficiency rating which has implemented.

• 화약ㆍ발파
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• 제27권2호
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• pp.56-60
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• 2009

물리학적 측면에서 에너지의 개념은 일하는 능력으로 정의된다. 기존의 석탄 석유등 화석연료를 대체하기 위해 1980년 이후부터 천연가스 원자력 등의 사용이 증가하였으나 환경오염문제로 태양열 풍력 조력 지열 등 대체에너지로의 전환을 촉진하고 있다. 그러나 에너지 이용효율 측면에서는 원자력 에너지와 화약 가스 등 화학에너지와는 비교가 되지 않는다. 본 논문에서는 환경(대체)에너지의 한계점을 뛰어 넘을 수 있는 방안을 연구하기 위하여 그린에너지의 현황을 조사하였으며, 고효율 에너지원에 대한 청정화와 응용 및 개발방향에 대해 검토, 연구 하였다.

• 한국주거학회논문집
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• 제13권2호
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• pp.1-6
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• 2002

As a result of rapid economic and social change, the number of large-scale builing is expected to increase. In response to the growing increase, It will be a greater demand for up-to-date for heating and cooling, illumination, communication and disaster protection system as well as a sharp rise in overall energy consumption. Gradually the living of apartment building is increasing by growing population. In basic data will be offered for the energy conservation programs, and establishing some standards for the energy consumption in future. By understanding how energy sources are actually utilized in existing apartment houses, we can develop more appropriate strategies to maximize both the efficient use of energy and its conservation.

• Advances in Energy Research
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• 제5권3호
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• pp.207-217
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• 2017

Energy consumption in agriculture is responsible for greenhouse gas emission but it can be reduced after efficient utilization of energy inputs. Therefore, the present study aims for the estimation of energy efficiency and extent of greenhouse gas reduction after benchmarking of inefficient farms in off-season tomato in Punjab province of Pakistan. Primary data were collected from 70 farmers with simple random sampling. By using data envelopment analysis, the average value of technical, pure technical and scale efficiency was 0.80, 0.92 and 0.87, respectively while increasing, constant and decreasing return to scale was observed in 33, 26 and 11 farmers, respectively. Total input energy was reduced by $12,688.91MJ\;ha^{-1}$ (13.89%) if inefficient farms used the energy inputs according to recommendations or benchmarking. A major portion of energy saving comes from fertilizers (68.79%) followed by diesel (15.70%), chemicals (5.91%), machinery (4.37%) and water (4.00%). Total greenhouse gases reduction was $499.17kg\;CO_2\;eq.ha^{-1}$ (14.57%) as a result of improvement in energy efficiency or benchmarking of inefficient farms. Agricultural extension staff should visit the vegetable farms on regular basis and give necessary information about efficient utilization of energy inputs. The government should create awareness about the optimum use of input through seminars and pamphlets.

• 대한설비공학회지:설비저널
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• 제20권6호
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• pp.414-417
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• 1991

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2016년도 추계학술발표대회
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• pp.309-312
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• 2016

Green Internet of Things (IoT) is the study and practice of eco-friendly sustainable computing. The basic goal of green computing is to reduce the use of materials and maximize energy efficiency with reliable and secure communications. The paper presents various technologies and issues regarding green IoT. It also studies the green Information and Communication Technology (ICT) such as green M2M, green Cloud Computing (CC), and green Data Center (DC). In addition, this paper mentions about the reliability in IoT Communication and and issues to achieve green IoT communication by applying efficient activity scheduling technique for energy saving. Finally, we propose the green IoT-Home Service (GIHS) model which provides efficient energy management in home automation system.

• International journal of advanced smart convergence
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• 제8권1호
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• pp.82-86
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• 2019

We aim to use public data different from the remote BEMS energy diagnostics technology and already established and then switch the conventional operation environment to a big-data-based integrated management environment to operate and build a building energy management environment of maximized efficiency. In Step 1, various network management environments of the system integrated with a big data platform and the BEMS management system are used to collect logs created in various types of data by means of the big data platform. In Step 2, the collected data are stored in the HDFS (Hadoop Distributed File System) to manage the data in real time about internal and external changes on the basis of integration analysis, for example, relations and interrelation for automatic efficient management.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1637-1642
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• 2009

This study evaluates the energy performance of super high-rise residential buildings with e-QUEST simulation and calculates the annual cooling and heating load. The result of this study have concluded that the most influential factor is the characteristics of the window and also suggest the most efficient window system from the result of calculation of different glasses' cooling and heating load. The result of this study shows that The most efficient method to enhance the energy performance is to use low reflective 3 pairs Low-E glass and Low-E coating(inside of outer glass) pair glass.