http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Yuji Sekiya (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Centralized P2P Management System Based on File and Peer Reputation
Wei Tian,Yuji Sekiya,Yasushi Wakahara,Yoshiaki Tanaka 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
In recent years, P2P file sharing systems have become one of the most popular applications in networks. However, because of the nature of the openness and anonymity of P2P applications, it is very hard to control peers that can join the system and also to trace the originating peers of shared files. Therefore, P2P systems have also become an avenue of attack and in practice a lot of malicious files are shared in P2P systems in addition to legitimate files. In order to manage P2P networks and prevent the malicious files from spreading, we propose a centralized P2P management system (C2MS) using the reputation of both file and peer. Some simulation results demonstrate that our proposed C2MS can work well even in serious attack situation.
-
Abstract : Soil washing for rice paddy soils contaminated with cadmium
( Tomoyuki Makinoa ),( Takashi Kamiya ),( Naoki Sekiya ),( Yuji Maejima ),( Ikuko Akahane ),( Hiroyuki Takano ) 한국환경농학회 2012 한국환경농학회 워크샵자료 Vol.2012 No.2
Codex Alimentarius Commission (Codex) has adopted the maximum permissible concentration of cadmium (Cd) in polished rice and other relevant crops, which requires an alleviation of the Cd contamination in rice grain. Various chemicals were tested for their Cd extraction efficiency by using three paddy soils, selecting ferric chloride (FeCl3) as a promising chemical for on-site soil washing. The comparison of FeCl3 extraction ability to that of various iron, manganese, and zinc salts revealed the primary extraction mechanism of FeCl3 to be proton release coupled with hydroxide generation (hydrolysis). This indicates that proton release from FeCl3 is controlled by the chemical equilibrium of hydroxide formation, and minimizes the negative effect on soil properties and environment, which are different from hydrochloric acid (HCl). Washing with FeCl3 led to the formation of Cd?chloride complexes, enhancing Cd extraction from the soils. We also developed in situ three-step washing method for Cd-contaminated paddy fields with FeCl3. The method was comprised of 1) chemically washing the field soil with a FeCl3 solution; 2) washing the treated soil with water to eliminate residual Cd and FeCl3; and 3) on-site treatment of wastewater using a portable wastewater treatment system. Concentrations of Cd in the treated water were below Japan`s environmental quality standard (0.01 mg L-1). The on-site soil washing confirmed the effectiveness of FeCl3 for decreasing Cd in soil and rice grains without negative effect on rice yield.
-
( Takashi Hoshino ),( Toshifumi Watanabe ),( Yusuke Nakagawa ),( Hiroki Katagiri ),( Nobutake Ozeki ),( Toshiyuki Ohara ),( Mikio Shioda ),( Yuji Kono ),( Ichiro Sekiya ),( Hideyuki Koga ) 대한슬관절학회 2021 대한슬관절학회지 Vol.33 No.-
Purpose: This study assessed the clinical outcomes of periprosthetic joint infection patients who underwent twostage revision total knee arthroplasty with antibiotic-loaded cement spacers fabricated using a handmade silicone mold. Materials and methods: This study included seven patients (average age 77 years, average follow-up time 54 months) who underwent surgery at our hospital between 2009 and 2013. Clinical outcomes including knee scores, function scores, knee range of motion, and walking ability at the final observation, period from the primary total knee arthroplasty to implant removal, period from implant removal to revision total knee arthroplasty, and followup period after revision total knee arthroplasty were investigated. Results: At the final follow-up, the average knee range of motion was 99°, with no significant differences at each stage; average knee and function scores were 84 and 77, respectively. With cement spacers, five patients were able to walk with a t-cane. No recurrence of infection was observed. Conclusions: The clinical outcomes of the current case series demonstrated good knee function with preserved walking ability, without any recurrence of periprosthetic joint infection. This study suggests that using a handmade silicone mold could be an effective option for periprosthetic joint infection after a total knee arthroplasty.
KCI연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
