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본 연구는 3차원 CFD(Computational Fluid Dynamics)이용하여 모노파일 기초 주변의 환형 세굴방지공에 의한 세굴방지 효과를 파악하였다. Torsethaugen(1975)의 수리모형 실험결과를 바탕으로 FLOW-3D의 해석결과를 검증하였다. 검증결과를 바탕으로 유속변화에 따른 세굴을 연구한 결과, 유속이 증가할수록 최대 세굴심과 세굴폭 또한 증가하는 경향을 확인하였다. 모노파일 기초 주변에 세굴방지 효과 연구를 위해 바닥면에 환형 세굴방지공을 부착하여 수치실험을 수행하였으며, 약 68.5%의 세굴 감소 효과를 확인했다. 또한 하강 유속과 구조물 주변 저층 유속이 감소한 것을 확인하였고, 이는 세굴방지공이 세굴에 영향을 미치는 하강류의 저감 효과를 보이는 것으로 판단된다.

Cheating detection models in the online games can be divided in to two parts. The one is on client based model, which is designed to detect malicious programs not to be run while playi ng the games. The other one is server based model, which distinguishes the difference between benign users and cheaters by the server log analysis. The client based model provides various features to prevent games from cheating, For instance, Anti-reversing, memory manipulation and so on. However, being deployed and operated on the client side is a huge weak point a s cheaters can analyze and bypass the detection features. That Is why the server based model is an emerging way to detect chea ting users in online games. But the simple log data such as FPS’s one can be hard to find validate difference between two o f them. In this paper, In order to compensate for the disadvantages of the two detection model above, We use the existing game security solution log as well as the server one to bring high performance as well as detection ratio compared to t he existing detection models in the market.Keywords: Online game security solution, FPS Online game security, FPS S erver log analysis

Background Diabetes and Alzheimer disease and related dementias (ADRD) are the seventh and sixth leading causes of death in the United States, respectively, and they coexist in many older adults. Caring for a loved one with both ADRD and diabetes is challenging and burdensome. Objective This study aims to explore diabetes-related topics in the Alzheimer’s Association ALZConnected caregiver forum by family caregivers of persons living with ADRD. Methods User posts on the Alzheimer’s Association ALZConnected caregiver forum were extracted. A total of 528 posts related to diabetes were included in the analysis. Of the users who generated the 528 posts, approximately 96.1% (275/286) were relatives of the care recipient with ADRD (eg, child, grandchild, spouse, sibling, or unspecified relative). Two researchers analyzed the data independently using thematic analysis. Any divergence was discussed among the research team, and an agreement was reached with a senior researcher’s input as deemed necessary. Results Thematic analysis revealed 7 key themes. The results showed that comorbidities of ADRD were common topics of discussions among family caregivers. Diabetes management in ADRD challenged family caregivers. Family caregivers might neglect their own health care because of the caring burden, and they reported poor health outcomes and reduced quality of life. The online forum provided a platform for family caregivers to seek support in their attempts to learn more about how to manage the ADRD of their care recipients and seek support for managing their own lives as caregivers. Conclusions The ALZConnected forum provided a platform for caregivers to seek informational and emotional support for caring for persons living with ADRD and diabetes. The overwhelming burdens with these two health conditions were apparent for both caregivers and care recipients based on discussions from the online forum. Studies are urgently needed to provide practical guidelines and interventions for diabetes management in individuals with diabetes and ADRD. Future studies to explore delivering diabetes management interventions through online communities in caregivers and their care recipients with ADRD and diabetes are warranted.

Recently, there has been an increased demand for Brain-Machine Interface (BMI) toolboxes for neuroscientifc research. In many BMI applications, speller systems can provide an efficient communication channel for users with disabilities. Here, we introduce an open-source BMI toolbox termed ‘OpenBMI’, which supports the various signal processing chains for common BMI paradigms, such as event-related potentials (ERPs) and steady-state visual evoked potentials (SSVEP). The OpenBMI framework consists of ready-to-use experimental paradigms, offline data analysis techniques, online feedback as well as evaluation modules. The data analysis modules provide essential pre-processing steps (segmentation, baseline correction, etc.) as well as signal processing algorithms such as temporal and spatial filtering, artifact rejection, among others. The experimental paradigms of ERP and SSVEP are available with fully open-sourced demo scripts. Users can easily modify or extend the demo scripts for their needs. In this article, the OpenBMI framework, its features as well as its future development plan is introduced.

We propose a novel packaging method of a thin polyimide multichannel microelectrode. For the simple electrical connection of polyimide (PI) electrodes, we made a via-hole at the interconnection pads of thin PI electrodes, and constructed a Ni ring by electroplating through the via-hole for the stable soldering and strong adhesion of the electrode to PCB. For the construction of a well-organized Ni ring, the electroplating condition was optimized, and the electrical property of the packaged electrode was evaluated. A 40 channel thin PI electrode was fabricated and packaged by the proposed method, and we performed the animal experiment with this packaged electrode for the high-resolution recording of neural signals from the skull of a rat.

We investigated the effect of interfacial buffer layers of aluminum doped ZnO (AZO) as a seed layer of ZnO nanowire and PEDTO:PSS on the performance of hybrid solar cells based on the blend of poly(3-hexylthiophene) (P3HT), phenyl-C61-butyric acid methyl ester(PCBM) and ZnO nanowire. The efficient inverted organic/inorganic hybrid solar cell were fabricated with the structure of indium tin oxide (ITO)/AZO/ZnO nanowire/P3HT:PCBM/PEDOT:PSS/Ag. Short circuit current density of 9.77 mA/cm2, open-circuit voltage of 0.57 V, fill factor of 51.2 %, and power conversion efficiency of 2.87 % under a AM 1.5G 100 mW/cm2 condition were achieved

We propose a novel packaging method for preparing thin polyimide (PI) multichannel microelectrodes. The electrodes were connected simply by making a via-hole at the interconnection pad of a thin PI electrode, and a nickel (Ni) ring was constructed by electroplating through the via-hole to permit stable soldering with strong adhesion to the electrode and the printed circuit board. The electroplating conditions were optimized for the construction of a well-organized Ni ring. The electrical properties of the packaged electrode were evaluated by fabricating and packaging a 40-channel thin PI electrode. Animal experiments were performed using the packaged electrode for high-resolution recording of somatosensory evoked potential from the skull of a rat. The in vivo and in vitro tests demonstrated that the packaged PI electrode may be used broadly for the continuous measurement of bio-signals or for neural prosthetics.