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Long-term Evaluation of TNCT Independently Blocking of Spam E-mail
Get PDFpublisherWe reported a unique blocking system of spam e-mail using Postfix mail server proguram six years ago. In this report, a subsequent improvement and an effect of the blocking are reported on a long-term view. We introduce additional refusal rules not only in delivery servers connected to the Internet but in the intramural last receiving server in order to improve a blocking efficiency. Although very slight superfluous restriction has occurred, the mail delivery system by which spam e-mail hardly enters within our campus is realizable without optional software and/or hardware.departmental bulletin pape
Construction and Operation of Near -real-time Congestion Information Providing System in Large-scale Events
Get PDFpublisherIn recent years, it is very major method that use internet for collecting information. Especially, social network service (SNS) is growing rapidly. For example, there are Twitter, Facebook, LINE, mixi, and so on. However, SNS is very difficult to understand for Information illiterate. In this challenge, in order to provide real-time information of "B-1 Grand prix in Tsuyama", our system was built. This system provides near-real-time information. Information is based on information that was sent by staff. Moreover, user interface is simple web-page and it is easy to use. In order to get latest information, the web browser is only required. In the day of event, our system acted role without incident. It seems without problem that operating our system, but exists some issues about construction. In this report, our system, operation, and consideration were recorded.departmental bulletin pape
Mathematics and Chemistry Interdisciplinary Joint Research and the Fukui Project III
Get PDFpublisherThis is the third part of the series of articles that records essentials of the Mathematics and Chemistry Interdisciplinary Symposium 2013 Tsuyama, whose main themes were symmetry, periodicity, and repetition. The symposium was held on April 5th and 6th in Tsuyama city, Okayama, Japan, in conjunction with the Fukui Project and was devoted to the memory of the late Professor Kenichi Fukui (1981 Nobel Prize) who initiated the project. The present series also provides a challenging cross-disciplinary problem which is directly related to the Fukui conjecture and to recent carbon nanotube
research. This problem is formulated using mathematical language of unique factorization domain (UFD) and related notions, which are not well known among chemists despite the importance of these notions in elucidating additivity and high-speed asymptotic phenomena in molecules having many repeating identical moieties.departmental bulletin pape
A Magnetic Carbon Sorbent for Radioactive Material from the Fukushima Nuclear Accident
Get PDFHere we present the first report of a carbon-γ-Fe(2)O(3) nanoparticle composite of mesoporous carbon, bearing COOH- and phenolic OH- functional groups on its surface, a remarkable and magnetically separable adsorbent, for the radioactive material emitted by the Fukushima Daiichi nuclear power plant accident. Contaminated water and soil at a level of 1,739 Bq kg(−1) ((134)Cs and (137)Cs at 509 Bq kg(−1) and 1,230 Bq kg(−1), respectively) and 114,000 Bq kg(−1) ((134)Cs and (137)Cs at 38,700 Bq kg(−1) and 75,300 Bq kg(−1), respectively) were decontaminated by 99% and 90% respectively with just one treatment carried out in Nihonmatsu city in Fukushima. Since this material is remarkably high performance, magnetically separable, and a readily applicable technology, it would reduce the environmental impact of the Fukushima accident if it were used.journal articl
Mathematics and Chemistry Interdisciplinary Joint Research and the Fukui Project I
Get PDFpublisherThe present series of articles (Parts I, II, and III) records essentials of the Mathematics and Chemistry Interdisciplinary Symposium 2013 Tsuyama, whose main themes were symmetry, periodicity, and repetition. The symposium was held on April 5th and 6th in Tsuyama city, Okayama, Japan, in conjunction with the Fukui Project and was devoted to the memory of the late Professor Kenichi Fukui (1981 Nobel Prize) who initiated the project. The present series also provides a challenging cross-disciplinary problem which is directly related to the Fukui conjecture and to recent carbon nanotube research. This problem is formulated using mathematical language of unique factorization domain (UFD) and related notions, which are not well known among chemists despite the importance of these notions in elucidating additivity and high-speed asymptotic phenomena in molecules having many repeating identical moieties.departmental bulletin pape
Performance of Transmission Gear with Minimum Quantity Lubrication Method
Get PDFpublisherFrom an environmental point of view, a MQL (Minimum Quantity Lubrication) method should be adopted to gear transmission systems. This study aims to find a reliable MQL method and a design method for gears operated under high-speed driving conditions. The conclusions are as follows. First, the application of centrifugal lubrication method is able to pull out the full cooling performance of the lubricant. Second, the operation of gears with 30% specific sliding shows less heat generation than that of gears with 50% specific sliding. Third, combining the centrifugal lubrication method and the gears with 30% specific sliding is effective for reducing an environmental load of gear transmission systems.departmental bulletin pape
Mathematics and Chemistry Interdisciplinary Joint Research and the Fukui Project II
Get PDFpublisherThis is the second part of the series of articles that records essentials of the Mathematics and Chemistry Interdisciplinary Symposium 2013 Tsuyama, whose main themes were symmetry, periodicity, and repetition. The symposium was held on April 5th and 6th in Tsuyama city, Okayama, Japan, in conjunction with the Fukui Project and was devoted to the memory of the late Professor Kenichi Fukui (1981 Nobel Prize) who initiated the project. The present series also provides a challenging cross-disciplinary problem which is directly related to the Fukui conjecture and to recent carbon nanotube research. This problem is formulated using mathematical language of unique factorization domain (UFD) and related notions, which are not well known among chemists despite the importance of these notions in elucidating additivity and high-speed asymptotic phenomena in molecules having many repeating identical moieties.departmental bulletin pape
Gemini 2 System and ASCOM Platform
Get PDFpublisherIn March 2012, we constructed an astronomical observatory on the rooftop of our school building. This observatory is equipped with an equatorial mount and a 35cm diameter ACF (Advanced Coma-Free) telescope. The Gemini 2 system of this equatorial mount can be controlled by the Web browser of a PC on a network. ASCOM (AStronomy Common Object Model) is an open integrated platform that provides a standard interface for astronomy equipment including mounts, focusers, and imaging devices in a Microsoft Windows environment. We investigated the control of our astronomical observatory using the ASCOM platform.departmental bulletin pape
サイリスタ測定実験装置の作製
Get PDF津山高専電気電子工学科三年の実験に「サイリスタとその応用」というテーマがある．本実験では電力制御などで用いられるサイリスタの特性測定を行っている．しかし，実験装置が１セットしかないため，少人数での実験が行えず，実験に積極的に参加しない学生が見受けられていた．そこで，教育効果を高めるため新たに同様の実験ができる装置を作製し実験に導入した．その内容と，導入結果について報告する．othe