• 지질동맥경화학회지
• /
• 제8권1호
• /
• pp.1-7
• /
• 2019

Vascular dementia is the most common neuropsychiatric syndrome and is characterized by synaptic dysfunction, neuroinflammation, and cognitive dysfunction. Vascular dementia is associated with various environmental, genetic, and lifestyle risk factors. Recent research has focused on the association between vascular dementia and dietary patterns, suggesting that dietary regulation leads to better control of energy metabolism, improvements in brain insulin resistance, and the suppression of neuroinflammation. Intermittent fasting is a calorie-restriction method known to be more effective in promoting fat loss and regulating the impairment of glucose metabolism as compared with other dietary restriction regimens. Herein, the authors review the effects of intermittent fasting with regard to vascular dementia based on recent evidence and propose that intermittent fasting could be a therapeutic approach for ameliorating vascular dementia pathology and preventing its onset.

• 풍력에너지저널
• /
• 제5권1호
• /
• pp.50-55
• /
• 2014

Surface Permanent-Magnetic-Synchronous-Generator (SPMSG) discussed in the present study has operational characteristics such as high rotational speed over 1,000 rpm and centrifugal force of 12 kN·m for each magnet. Structure-development analysis for the minimization of rotor-core weights and the maximization of thermal emission is performed by applying the aluminum-laminated cap which combines the advantages of IPM and SPM in order to overcome the difficulty that attaching the magnet to rotor-core only with an adhesive. In this study, the simulations in terms of structure and electromagnetic were performed with the variable parameters such as shape and thickness of laminated-cap and division method of magnet. As a result, condition for minimized centrifugal force with minimum loss is derived.

• 컴퓨터교육학회논문지
• /
• 제6권1호
• /
• pp.121-130
• /
• 2003

인터넷 중독에 대한 예방 및 처방을 위한 법적, 기술적인 대응이 한계에 부딪치면서 이에 대한 대응책으로 교육적인 방법이 중요하게 부각되고 있다. 본 연구에서는 인터넷 중독을 예방하고 정보통신윤리 함양을 위한 교육방법으로 사이버 모의재판 시스템의 적용을 제안하고자 한다. 모의재판 시스템은 공개재판과 비공개재판을 할 수 있도록 되어있고, 사이버 반성실을 통하여 재판과정과 재판결과에 대하여 토론할 수 있게 구현되었다. 사이버 모의 재판을 통한 학습이 인터넷 중독 예방 및 처방에 효과가 있는지를 알아보기 위해, 수업준비도, 수업참여도, 수업흥미도, 수업의 효과성으로 구분하여 설문하고 분석하였다.

• 한국인쇄학회지
• /
• 제29권1호
• /
• pp.45-59
• /
• 2011

According as gradually increasing the demand for Eco-friendly products it has been progressed fairly development at a field of printing and printing inks. The Inks are used by soy oil beginning of ink industry for preventing environment. Now it is possible to make Eco-friendly inks with vegetable ester. So it is not necessary to use petroleum-based solvents for preventing environment. But There is some problems if using vegetable ester to inks. Vegetable ester has high solubility, it causes misting and low viscosity of the Inks. So resin is required high performance. Thus, in this paper, I studied about the properties variation of the Varnish and inks According to using the phenolic modified rosin ester and Soy oil Methyl esters. The compared in order of average molecular weight by the GPC method, rheological properties were found by rotational rheometer, and emulsion behavior were compared by high speed emulsification tester.

• 유통과학연구
• /
• 제20권7호
• /
• pp.107-117
• /
• 2022

Purpose: The scope of forensic investigations serves to identify malicious activities, including leakage of crucial corporate information. The investigations also identify security lapses in available networks. The purpose of the present study is to explore how to block distribution channels to protect illegal leakage in supply chain through digital forensic method. Research design, data and methodology: The present study conducted the qualitative textual analysis and its data collection process entails five steps: identifying and collecting data, determining coding categories, coding the content, checking validity and reliability, and analyzing and presenting the results. This methodology is a significant research method due to its high quality of previous resources. Results: Applying previous literature analysis to the results of this study, the author figured out that there are four solutions as an evidences to block distribution channels, preventing illegal leakage regarding company information. The following subtitles show clear solutions: (1) Communicate with Stakeholders, (2) Preventing and addressing illegal leakage, (3) Victims of Data Breach, (4) Focusing Solely on Technical Teams. Conclusion: There are difficult scenarios that continue to introduce difficult questions surrounding engagement with digital evidence. Consequently, it is important to enhance data handling to provide answers for organizations that suffer due to illegal leakages of sensitive information.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2002년도 ICCAS
• /
• pp.110.2-110
• /
• 2002

Evolutionary Algorithm is the general method that can search the optimum value for the various problems. Evolutionary method consists of random selection, crossover, mutation, etc. Since the next generation is selected based on the fitness values, the crossover between chromosomes does not have any restrictions. Not only normal marriage but also consanguineous marriage will take place. In human world, consanguineous marriage was reported to cause various genetic defects, such as poor immunity about new diseases and new environment disaster, These problems translate into searching for the local optimum, not the global optimum. So, a new evolutionary algorithm is needed that prevents traps to...

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
• /
• pp.41-41
• /
• 2000

biped robots are expected to robustly traverse terrain with various unknown surfaces. The robot will occasionally encounter the unexpected events in made-for human environments. The slipping is a very real and serious problem in the unexpected events. The robot system must respond to the unexpected slipping after it has occurred and before control is lost. This paper proposes a reflex control method for biped robots to recover from slipage. Computer simulations with the 6-DOF environment model which consists of nonlinear dampers, nonlinear springs, and linear springs, show that the proposed method is effective in preventing fall-down due to slippage.

• 한국인터넷방송통신학회논문지
• /
• 제21권5호
• /
• pp.103-111
• /
• 2021

본 연구목적은 관제 공역 다중 드론의 운행 충돌 방지 방안에 대한 연구이다. 연구 결과 드론 충돌을 회피하는 방안으로 관제 시스템에서 드론 예상 경로와 시간을 기반으로 추정되는 ROI 영역에 대한 정확한 정보를 설정 후 드론 충돌을 제어 할 수 있는 방안으로 적절하다는 것을 입증하였다. 실혐분석 결과, 운행하는 드론의 항로 직경은 충돌 위험을 줄일 수 있는 규모를 선정해야 하며, 운행하는 드론의 출발시간과 운행 속도의 변화는 충돌에 영향요인으로 작동하지 않았다. 또한, 충돌을 회피하기 위한 대응 방안으로 비행 우선 순위 제공이 적절한 방법 중의 하나임을 실증하였다. 충돌 회피 방안에 대해 드론 센서기반 충돌회피뿐만 아니라 관제 시스템에서 충돌을 모니터링 및 예측하고 실시간 제어를 수행하여 이중으로 충돌을 보완 할 수 있다. 본 연구는 관제 기반으로 운행되는 드론의 충돌 방지 방안에 대한 아이디어를 제공하고 이를 실질적인 테스트를 진행했다는 것에 의의를 두고 있다. 이는 관제 기반으로 이기종 드론들이 다수 운행시 등장하는 충돌 문제 해결에 도움이 된다. 본 연구는 드론의 충돌로 인한 사고 방지와 안전한 드론 운행 환경 제공을 통한 관련 산업의 발달에 기여 할 것이다.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2017년도 춘계학술발표대회
• /
• pp.315-318
• /
• 2017

Nowadays, Distributed Denial of Service (DDoS) attacks have gained increasing popularity and have been a major factor in a number of massive cyber-attacks. It could easily exhaust the computing and communicating resources of a victim within a short period of time. Therefore, we have to find the method to detect and prevent the DDoS attack. Recently, there have been some researches that provide the methods to resolve above problem, but it still gets some limitations such as low performance of detecting and preventing, scope of method, most of them just use on cloud server instead of network, and the reliability in the network. In this paper, we propose solutions for (1) handling multiple DDoS attacks from multiple IP address and (2) handling the suspicious attacks in the network. For the first solution, we assume that there are multiple attacks from many sources at a times, it should be handled to avoid the conflict when we setup the preventing rule to switches. In the other, there are many attacks traffic with the low volume and same destination address. Although the traffic at each node is not much, the traffic at the destination is much more. So it is hard to detect that suspicious traffic with the sampling based method at each node, our method reroute the traffic to another server and make the analysis to check it deeply.

• 대한예방한의학회지
• /
• 제7권2호
• /
• pp.107-119
• /
• 2003

In order to study the preventive effects of hyperlipidemia depending on endogenous and exogenous methods of induction, after observing what happens when Nokyongdaebotang, a strengthening up treatment is orally administrated into the ways that cause hyperlipidemia either by the exogenous hyperlipidemia condition model method, which is the way where you orally administrate the cholesterol that was dissolved in olive oil, or the endogenous hyperlipidemia model method, where it uses the injecting the Triton WR-1339 vein method, or to the already inducted white rats, the following conclusions could be drawn. 1. The endogenous induction method, cholesterol diet, helps preventing Total Cholesterol, TG, and LDL-Cholesterol, Free Fatty Acid, Phospholipid's augmentation within the blood in the white rats that is being induced or just inducted with hyperlipidemia 2. The exogenous induction method, Triton WR injection, helps preventing Total Cholesterol, TG, and LDL-Cholesterol, Free Fatty Acid, Phospholipid's augmentation within the blood in the white rats that is being induced or just inducted with hyperlipidemia 3. The HDL-Cholesterol did not increase in regard. This is considered to be because when the geological features the HDL-Cholesterol increases proportionally. In deference to the above results, Nokyongdaebotang, which strengthens the vitality, showed that it helps prevent white rats that is being induced or just inducted with hyperlipidemia no matter whether it is endogenous or exogenous.