• 한국멀티미디어학회논문지
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• 제23권7호
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• pp.862-869
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• 2020

This study attempted to analyze human brain responses toward visual content through EEG signals and intended to measure brain wave reactions of different age groups to determine the sexuality level of the media. The experimental stimuli consist of three different video footage (rated ages 12, 15, and 18) to analyze how subjects react in situations where they actually watch sexual content. For measuring and analyzing brain wave reactions, EEG equipment records alpha, beta, and gamma wave responses of the subjects' left and right frontal lobes, temporal lobes, and occipital lobes. The subjects of this study were 28 total and they are divided into two groups. The experiment configures a sexual content classification scale with age or gender as a discriminating variable and brain region-specific response frequencies (left/right, frontal/temporal/occipital, alpha/beta/gamma waves) as independent variables. The experimental results showed the possibility of distinguishing gender and age differences. The apparent differences in brain wave response areas and bands among high school girls, high school boys, and college students are found. Using these brain wave response data, this study explored the potential of developing algorithm for measurement of age-specific responses to sexual content and apply it as a film rating.

• 한국농공학회논문집
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• 제48권6호
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• pp.101-112
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• 2006

A Geographic Information System (GIS) was developed to estimate basin-wide soil losses using the Universal Soil Loss Equation (USLE). It was applied to estimate the annual average soil losses from the Saemangeum watershed. The USLE factors for each subarea of uniform land use and treatments were estimated from the GIS routines from digital topographic maps, land cover and detailed soil maps. A routine was developed to estimate the averaged cropping management factors (C) of USLE for multi-cropping farmlands, based on cropping system records from the district offices. The resulting C factors ranged from 0.28 to 0.35 for multi-cropping areas. The estimated annual average soil loss was approximately 2.9 million tonnes. Typical soil losses from different land uses were 0.8 t/ha at paddies, 33.7 t/ha at uplands and 1.1 t/ha from forested mountains. It was also found that 6.0% of the arable land of the watershed possessed high risks of soil losses, and conservation measures were needed to reduce soil losses.

• 정보관리학회지
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• 제25권1호
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• pp.75-98
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• 2008

개방형 네트워크인 인터넷의 확산과 웹(Web) 기술이 발전함에 따라 다양한 형태의 전자문서가 생산 및 유통되고 있다. 전자문서(e-Document)는 문서를 생산한 기관에서 일련의 행위를 유발하기 위한 정보 또는 내용을 포함하는 기록물의 일종이다. 본 연구에서는 이러한 전자문서의 안전한 이용 및 유통을 위하여 요구되는 보안 알고리즘을 제안하였다. 특히, 제안된 방법은 전자문서의 진본성(Authenticity), 신뢰성(Reliability), 무결성(Integrity)을 보장하기 위한 전자서명의 생성과 이용자의 정당성 확보를 위한 인증과정에 적용할 수 있다. 또한, 보안성과 저장성에 있어서 높은 신뢰도를 가지고 있는 스마트카드를 활용함으로써 기존의 방법에 비하여 높은 보안성을 확보할 수 있었다. 제안된 방법의 효율성 및 신뢰성에 대한 검증을 위하여 실험을 수행하였다.

• 한국비블리아학회지
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• 제23권4호
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• pp.437-455
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• 2012

이 연구의 목적은 공간/장소를 중심으로 추진되는 로컬리티 기록화의 모형을 제시하는 것이다. 이를 위해 Cox 등이 주창한 로컬리티 기록화 모형과 우리나라에서 최근 이루어진 관련 연구 등을 분석하여 로컬리티 기록화의 방향과 전략이 어떻게 바뀌고 있는지 분석하였고, 이를 토대로 디지털 환경에서의 새로운 로컬리티 기록화 패러다임을 도출하였다. 새로운 패러다임에 근거하여 공간 기반의 로컬리티 기록화 모형(spanDoc 모형)을 제시하였다. 이 모형은 기록화의 원칙, 구조, 절차를 포함하며, 특히 로컬리티 기록화의 결과가 디지털 환경에서 축적되고 활용되는 구조를 보여주는 데에 초점을 맞추었다.

• 통상정보연구
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• 제10권1호
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• pp.3-31
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• 2008

Northeast Asia is expected to be on economic bloc which is competed with other economic blocs such as EU, NAFTA. E-Commerce based on IT and networking results in paradigm shift in Northeast Asian Nations, that is, Korea, China, Japan, Taiwan etc. There are the similarities and differences in e-Commerce situations in these nations. The differences are the gaps in e-Commerce infrastructures such as Internet, e-Commerce solution, e-payment system and e-logistics system etc. A number of interorganizational, intraorganizational and usage level factors influences the performances of all firms using e-Commerce tools. As result of this empirical study, China records low level of e-Commerce in terms of environmental aspects, usage and performance while Korea and Japan record relatively high levels. It is also found that non-economic performance is higher than economic performance in Northeast Asian firms. The purpose of this paper contributes to resolve the digital divide in Northeast Asia and to improve e-Commerce infrastructures in Northeast Asia by estimating current e-Commerce levels of Northeast Asian countries and suggesting future development strategies of those countries through e-Commerce cooperation.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1998년도 Proceedings of International Symposium on Remote Sensing
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• pp.280.2-286
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• 1998

Flood is the main natural disaster mostly in the world. It is a care problem to prevent flood disaster generally. The frequency of flood disaster is high and the distributing field is wide, the 50 percent population and 70 percent properties distribute at the threaten field of flood disaster in China. Flood disaster has caused a huge amount of economical losses and these losses have an increasing trend. Along with the development of reducing natural disaster action, it has become one of the most attentive problems for monitoring flood, preventing flood and forecasting flood efficiently. Remote sensing has the characteristics of large spatial observing areas, wide spectrum ranges, and imaging far away from the targets, imaging capabilities all weather. Spatial remote sensing information, which records the full, processes of the disaster's occurrence and development in real-time. It is a scientific basis for management, planning and decision-making. Through systemic analyzing the RS monitoring theory, based on compounding RS information, the technology and method of monitoring flood disaster are studied.

• Earthquakes and Structures
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• 제6권5호
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• pp.539-560
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• 2014

Shaking tables are devices for testing structures or structural components models with a wide range of synthetic ground motions or real recorded earthquakes. They are essential tools in earthquake engineering research since they simulate the effects of the true inertial forces on the test specimens. The destructive earthquakes that occurred at the north part of Algeria during the period of 1954-2003 resulted in an initiative from the Algerian authorities for the construction of a shaking simulator at the National Earthquake Engineering Research Center, CGS. The acceleration tracking performance and specifically the inability of the earthquake simulator to accurately replicate the input signal can be considered as the main challenge during shaking table test. The objective of this study is to validate the uni-axial sinusoidal performances curves and to assess the accuracy and fidelity in signal reproduction using the advanced adaptive control techniques incorporated into the MTS Digital controller and software of the CGS shaking table. A set of shake table tests using harmonic and earthquake acceleration records as reference/commanded signals were performed for four test configurations: bare table, 60 t rigid mass and two 20 t elastic specimens with natural frequencies of 5 Hz and 10 Hz.

• Earthquakes and Structures
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• 제9권5호
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• pp.983-997
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• 2015

This research evaluates the soil conditions for seismic stations situated in Romania using the horizontal-to-vertical spectral ratio (HVSR). The strong ground motion database assembled for this study consists of 179 analogue and digital strong ground motion recordings from four intermediate-depth Vrancea seismic events with $M_w{\geq}6.0$. In the first step of the analysis, the influence of the earthquake magnitude and source-to-site distance on the H/V curves is evaluated. Significant influences from both the earthquake magnitude and hypocentral distance are found especially for soil class A sites. Next, a site classification method proposed in the literature is applied for each seismic station and the soil classes are compared with those obtained from borehole data and from the topographic slope method. In addition, the success and error rates of this method are computed and compared with other studies from the literature. A more in-depth analysis of the H/V results is performed using data from seismic stations in Bucharest and a comparison of the free-field and borehole H/V curves is done for three seismic stations. The results show large differences between the free-field and the borehole curves. As a conclusion, the results from this study represent an intermediary step in the evaluation of the soil conditions for seismic stations in Romania and the need to perform more detailed soil classification analysis is highly emphasized.

• 의료법학
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• 제10권1호
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• pp.389-420
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• 2009

Main Issue of Supreme Court Decision 2005Da16713 Delivered on June 24, 2005 is about the duty of medical care in the interhospital transfer of patients. According to the above Supreme Court Decision, in the interhospital transfer of patients, the decision to transfer should make from the aspect of medical treatment. The hospitals and doctors keep the duty of medical care. In addition to the duty for hospitals/doctors to check the capacity and availability of the hospital to which the patient is transferred, there are also duties to inform about emergency medical service and to sufficiently explain the need for the transfer, the medical conditions of the patient to be transferred and the hospital from which the patient is transferred. The hospital to which the patient is transferred must be thoroughly informed about matters such as the patient's conditions, the treatment the patient was given and reasons for transfer. including information upon referral, completeness of medical records, patient monitoring and so on. The interhospital transfer requires the consent of doctor belonging to the hospital to which the patient is transferred after the consideration of capacity and availability of the hospital and the informed consent of patients or legal representatives.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권8호
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• pp.4026-4040
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• 2019

In this paper, we present an approach for detecting slide transitions in lecture videos by introducing the spatio-temporal residual networks. Given a lecture video which records the digital slides, the speaker, and the audience by multiple cameras, our goal is to find keyframes where slide content changes. Since temporal dependency among video frames is important for detecting slide changes, 3D Convolutional Networks has been regarded as an efficient approach to learn the spatio-temporal features in videos. However, 3D ConvNet will cost much training time and need lots of memory. Hence, we utilize ResNet to ease the training of network, which is easy to optimize. Consequently, we present a novel ConvNet architecture based on 3D ConvNet and ResNet for slide transition detection in lecture videos. Experimental results show that the proposed novel ConvNet architecture achieves the better accuracy than other slide progression detection approaches.