• 전기학회논문지
• /
• 제63권9호
• /
• pp.1273-1280
• /
• 2014

This paper considers a GPS anti-spoofing problem. Spoofing is an intentional interference that mislead the GNSS receiver. The spoofing attack is very significant since the target receiver is not aware of being attacked from spoofing. Accelerometers can be used to detect the spoofing signal by being compared with the acceleration obtained from GPS information using Kalman filter. In this paper we propose an N by N-point average and M-point window algorithm to detect GPS spoofing by using accelerometers and GPS outputs. The performance of the proposed algorithm is analyzed using actual vehicle trajectory and spoofing trajectory generated from INS and GPS toolbox for simulation.

• Environmental Analysis Health and Toxicology
• /
• 제11권3_4호
• /
• pp.11-16
• /
• 1996

Paraquat is a useful nonselective herbicide widely used throught the world. However accidental or intentional ingestion of the herbicide cause fatal pulmonary injuring. But there is not suitable antidote of paraquat intoxication and therapeutic agents now be used are not effective. So, in this study we intended to evaluate the inhibitory effects of acetylmannan from Dioscorea batalas on paraquat toxicity. 100mg/kg acetylmannan from wild or cultured Dioscorea bataras was administered orally to male SD rats for 3 days and the administration time interval was 24hours. After one hour of final administration, 50mg/kg paraquat was administered intraperitonially. After 24 hours, the biochemical parameters of blood and tissues were examined. In paraquat treated groups, sGPT, BUN, creatinine, ALP levels were increased by 2 to 4 times of normal values. However in acetylmannan from wild Dioscorea batatas treated groups, sGPT, BUN, creatinine, ALP levels in blood and lung tissue were significantly decreased to normal levels. In acetylmannan from cultured Dioscorea batatas treated groups, BUN, creatinine were significantly decreased to normal values, but not in sGPT, ALP levels. Therefore, we concluded that acetylmannan from wild Dioscorea batatas can be used as an. antidote of paraquat toxicity.

• 한국대기환경학회지
• /
• 제14권2호
• /
• pp.133-142
• /
• 1998

Gas adsorption on adsorbents depends on temperatures and pressures. When these parameters are fixed, the adsorption capability and selectivity can not be changed. If the gas adsorption is controlled by another factor like electromagnetic field, the adsorption and desorption can be managed by much intentional way. The microwave has characteristics to excite particular components such as water without destroying it. In this study, microwave was irradiated to the adsorbent of an NaY zeolite which is almost transparent to microwave. As vapor of 1, 1, 2- trichloro-1, 2, 2-trifluoroethane (CFC-113) and water flowed simultaneously on the zeolite packed in a column at room temperature, only water was adsorbed. The . adsorbed water was removed from the zeolite and then replaced by CFC-113, since the microwave was irradiated. Greater the power of microwave was, more CFC-113 was adsorbed. The water adsorption took place again after a latent period by stopping the microwave irradiation.

• 한국멀티미디어학회논문지
• /
• 제19권3호
• /
• pp.642-649
• /
• 2016

This paper presents a method for conversion of muscular sense into both visual and auditory senses based on synesthetic perception. Muscular sense can be defined by rotation angles, direction changes and motion degrees of human body. Synesthetic interconversion can be made by learning, so that it can be possible to create intentional synesthetic phenomena. In this paper, the muscular sense was converted into both color and sound signals which comprise the great majority of synesthetic phenomena. The measurement of muscular sense was performed by using the AHRS(attitude heading reference system). Roll, yaw and pitch signals of the AHRS were converted into three basic elements of color as well as sound, respectively. The proposed method was finally applied to a wearable device, Samsung gear S, successfully.

• 농약과학회지
• /
• 제9권2호
• /
• pp.113-121
• /
• 2005

국가차원에서 식품안전 프로그램은 소비자보호와 식인성질환의 예방을 기본요소로 하고 있으며 정부, 식품산업, 소비자가 책임질 일이다. 여기에서는 WHO에서 제안하고 있는 식품안전 프로그램의 원칙을 소개한 다음 식품생산에 사용되는 의도적 첨가물의 잔류기준 설정에서 GAP의 중요성, 국제기구와 국내에서 잔류농약의 기준설정에 활용되고 있는 절차와 차이점을 지적하였다. 결론적으로 잔류농약에 대한 국내기준을 Codex 기준과 조화시키는데 필요한 사항들을 건의하였다.

• 수산해양교육연구
• /
• 제22권3호
• /
• pp.445-459
• /
• 2010

The purpose of this paper was to discern the nature of socially acceptable corporal punishment through legal analysis. To do this, the researcher attempted to clarify the concept of corporal punishment, to figure out the current legal position about corporal punishment, and to examine the court cases against corporal punishment. The results of the study were as follows: Firstly, corporal punishment is intentional physical or emotional aversive stimuli to students who violated the rules and norms, to reduce or fix specific undesirable behaviors, by the person who is in charge of discipline of students. Secondly, current regulations do not accept corporal punishment in principle. Thirdly, court cases did not admit the corporal punishment in principle, but did not charge legal liability if the corporal punishment was done in proper manner in view of education. However, the judicial precedents are getting more strict focusing on the human rights of students.

• 아동학회지
• /
• 제33권2호
• /
• pp.1-12
• /
• 2012

This study examined the influences of age, offenders' intention, victims' emotional reactions on the moral emotional understanding of preschool children. Eighty eight children aged 4, 5, and 6 participated in this study, and were interviewed using four moral transgression stories. The responses of the children were then analyzed in terms of the levels of moral emotional understanding, from error through to the understanding of secondary emotions. The results indicated that older children showed higher levels of moral emotional understanding than younger children. Additionally, children's moral emotional understanding was higher in situations in which offenders' behaviors were intentional, and in which the victims expressed sadness. The attribution of moral emotions was influenced by victims' emotional reactions only in 6-year-old children. Discussion of these results also included the development of intervention programs for children with aggressive behaviors, as well as a number of suggestions for future study.

• 가정과삶의질연구
• /
• 제23권6호
• /
• pp.179-190
• /
• 2005

This study discusses the conceptual meanings of 'healthy families' by examining four popular misunderstandings regarding the concept. These misunderstandings are based partly on the lack of consensus on the use of the concepts of 'health' and 'families' and partly on the intentional misreading of the 'Healthy Fanulies Act' To correspond to the Concerns related to the Act, we need to clarify various meanings of the concept of family and to confirm the theoretical pounds of 'healthy families' based on the multidisciplinary consensus. To build consensus, it might be necessary to review some of the articles of the Act that have been misinterpreted.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2008년도 하계종합학술대회
• /
• pp.1177-1178
• /
• 2008

This paper presents a network-attached WORM(Write Once Read Many) storage system whose purpose is to protect sensitive data that should not be accessed by accidental/intentional intrusion. In our storage system, the sensitive data would be marked and be stored into a specific WORM volume. Furthermore, with the associated WORM mark, the data whose WORM life cycle has been expired would automatically be moved to the general-purpose disk space, without interfering any other tasks, to save the WORM volume space. Our WORM storage system was integrated to the NAS product.

• 한국지능시스템학회논문지
• /
• 제14권6호
• /
• pp.678-686
• /
• 2004

This paper presents a new method to securely conduct online sealed-bid auctions with a single auctioneer server The sealed-bid auctions have several vulnerable security problems when they are performed on the Internet. One of such problems is the trust establishment between an auctioneer and bidders who participate in an auction. Several online sealed-bid auction methods have been developed to address this trust problem. The proposed method solves the security problems that would happen in the sealed-bid auction using a blind signature scheme and a contract signature protocol. It prevents the auctioneer from illegally manipulating the bidders' bidding information, repudiating the reception of some bid, manipulating the auction period, and illegally adding or deleting bids. In addition, it keeps the bidders from modifying the bidding information after issuing their bid and doing intentional mistake to invalidate their own bid. The method can be easily implemented using the multiagent architecture.