• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.33-34
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• 2006

Computer Forensics is a research area which finds the malicious users by collecting and analyzing the intrusion or infringement evidence of the computer crime. Many research about Computer Forensics has been done. But those research have focussed on how to collect the evidence after receiving the damage reports from computer users or network administrators. This paper describes about collecting the evidence of good quality at the time of infringement occurrence by the malicious user. By calculating Infringement severity of observable and protective hosts and referring to this value, we collect the evidence at the time of infringement occurrence to minimize the information modification of the evidence. We can reduce also the amount of logs that we use to analyze the infringement and can minimize the loss of the evidence.

• Journal of Ocean Engineering and Technology
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• v.32 no.5
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• pp.361-366
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• 2018

The present study analyzed the variation factors in inducing a salinity change using the existing observation network in the section between the Nakdong River Estuary Barrage and Changnyeong-Haman Weir, and also examined the seasonal changes in precipitation, salinity, and discharge. Furthermore, this study analyzed the causes of a salinity increase by collecting observational data during a period when abnormal salinity occurred, and further investigated the salinity transfer time in a section of approximately 5.3 km from the Nakdong River Estuary Barrage to Nakdong River Bridge to understand the behavioral characteristics of the salinity moving upstream. The study results would make it possible to control the increase in salinity and block salt water from moving upstream by understanding the salinity variation characteristics according to the discharge amount. This will provide stability in collecting water from various residential, agricultural, and industrial sources through water intake facilities scattered near the Nakdong River Estuary Barrage.

• 한국신재생에너지학회:학술대회논문집
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• 2006.06a
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• pp.563-566
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• 2006

An investigation has been carried for the thermal characteristics of the seasonal storage installation in Cheju. It features the solar collector area of $340m^2$ and the storage capacity of $600m^3$. Four different types of solar collector systems are compared for their performance of collecting solar energy throughout the year. Of these, two are made of tubular shaped vacuum collectors and the others are flat plate collectors. Results indicate that each system could play an important role in exploiting solar energy depending on the temperature range in its operation. Especially, the vacuum collectors outperformed the others when the inlet temperatures of the collector loop were raised beyond $40m^2$. This became more conspicuous as the return temperatures from the storage tank rose reflecting the seasonal variation. Due to the large heat capacity of the storage tank, temperature changes were rather small compared to those in the collecting loop regardless of seasonal fluctuations.

• Electronics and Telecommunications Trends
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• v.33 no.6
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• pp.69-80
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• 2018

Sensory devices have been developed to help people with disabled or weakened sensory functions. Such devices play a role in collecting and transferring data for the five senses (vision, sound, smell, taste, and tactility) and also stimulating nerves. To provide brain or prosthesis devices with more sophisticated senses, hyper sensory devices with a high resolution comparable to or even better than the human system based on individual neuron cells are essential. As for data collecting components, technologies for sensors with higher resolution and sensitivity, and the conversion of algorithms from physical sensing data to human neuron signals, are needed. Converted data can be transferred to neurons that are responsible for human senses through communication with high security, and neural interfaces with high resolution. When communication deals with human data, security is the most important consideration, and intra-body communication is expected to be a candidate with high priority. To generate sophisticated human senses by modulating neurons, neural interfaces should modulate individual neurons, and therefore a high resolution compared to human neurons (~ several tens of um) with a large area covering neuron cells for human senses (~ several tens of mm) should be developed. The technological challenges for developing sensory devices with human and even beyond-human capabilities have been tackled by various research groups, the details of which are described in this paper.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.05a
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• pp.493-495
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• 2021

Local festivals, an intangible tourism resource, contribute to the development of the local tourism industry by developing specialized products and tourism products to develop the region. With a very high interest in festivals in each of these regions, much attention is paid to data analysis on what issues and improvements will be made after the festival. In this study, for festivals in the Danyang-gun area, where many people visit every year among festivals in various regions, the issue of negative or positive relations is visually identified by collecting and analyzing unstructured data, which is an online medium, free from the difficulty of collecting commercial data This study was conducted to derive.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.3
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• pp.143-148
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• 2015

In order to design and plan a city, the importance of collecting traffic information increases. However, current method to collecting traffic information by using sensors layed on the roads is not appropriate for exceptional cases such as national highway or newly planned city area, where sensors are already not layed. To scope the cases, the traffic information is estimated from traffic information of surroundings area. This paper develops portable traffic volume measuring equipment utilizing two or radar detector, so that more useful traffic information can be obtained in any environments. Furthermore, the system allows users to be able to instantly analyze gathered data on the site. The system has been tested in the field and proved the excellences theough the field test.

• Journal of the Korean Institute of Rural Architecture
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• v.13 no.1
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• pp.55-62
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• 2011

The purpose of this study is to clarify the actual condition of real certification schools of environment-friendly architecture per ecological environment elements through extracting ecological environment elements which is possible to analyze in quantity certification standards of environment friendly architecture. As the method of this study, firstly, certification as an examination on certification system of environment-friendly architecture, summary of certification system of environment-friendly architecture and eco-school pilot model project, ecological environment elements which is possible for quantitative analysis of ecological environment certification standards were extracted. Secondly, actual condition of ecological environment elements per school grade by collecting actual data of certification schools environment-friendly architecture were analyzed. The average of ecological area ratio was 24.5 percent in case of this certification regardless of school grade and region and it was analyzed that the natural based green area ratio was 22.9 percent, bio-tope area ratio was 0.60 percent and ecological learning places area ratio was 0.39 percent.

• Journal of the Korean Institute of Rural Architecture
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• v.11 no.4
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• pp.9-16
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• 2009

The purpose of this study is to clarify the actual condition of certification schools of environment-friendly architecture and general school per ecological environment elements through extracting ecological environment elements which is possible to analyze in quantity certification standards of environment-friendly architecture. As the method of the study, first, certification as an examination on certification system of environment-friendly architecture, summary of certification system of environment-friendly architecture and eco-school pilot model project in japan, ecological environment elements which is possible for quantitative analysis of ecological environment certification standards were extracted. Second, actual condition of ecological environment elements per school grade(middle school of environment-friendly architecture and general middle school) by collecting actual data of certification schools environment friendly architecture were analyzed and the results are as the follows. The average of ecological area ratio was 28.3 percent in case of this certification regardless of school grade and region and it was analyzed that the natural based green area ratio was 26.5 percent, bio-tope area ratio was 0.4 percent and ecological learning places area ratio was 0.45 percent.

• Journal of the Korean Institute of Rural Architecture
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• v.12 no.4
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• pp.69-76
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• 2010

The purpose of this study is to clarify the actual condition of real certification schools of environment-friendly architecture per ecological environment elements through extracting ecological environment elements which is possible to analyze in quantity certification standards of environment friendly architecture. As the method of this study, firstly, certification as an examination on certification system of environment-friendly architecture, summary of certification system of environment-friendly architecture and eco-school pilot model project, ecological environment elements which is possible for quantitative analysis of ecological environment certification standards were extracted. Secondly, actual condition of ecological environment elements per school grade by collecting actual data of certification schools environment-friendly architecture were analyzed. The average of ecological area ratio was 23.3 percent in case of this certification regardless of school grade and region and it was analyzed that the natural based green area ratio was 20.6 percent, bio-tope area ratio was 0.73 percent and ecological learning places area ratio was 0.43 percent.

• Proceedings of the KIPE Conference
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• 2016.07a
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• pp.475-476
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• 2016

According to government supporting a renewable generation, a number of industrial MW photovoltaic systems have already been installed and rapidly increased. Even though the supporting is increased, analysis on power valuation and roll of a photovoltaic system are insufficient. In this paper, comparative analysis on characteristic of photovoltaic power system are illustrated as basic of power valuation by collecting power and irradiation data from MW photovoltaic system on wide area.