Ishihara S.,Mitsui Engineering and Shipbuilding Co. |
Ishihara S.,Kyushu University |
Kainuma S.,Kyushu University |
Kinoshita M.,Kyushu University |
And 3 more authors.
Zairyo to Kankyo/ Corrosion Engineering | Year: 2014
In authors' previous research, a corrosion preventing method composed of porous sintered Al-Zn plate and cross-linking chemical fiber sheet applying to non-corroded steel members in an atmospheric environment was proposed. The objective of this research is to investigate the effect of the corrosion preventing method on remained corrosion products of corroded steel members. Laboratory tests and atmospheric exposure tests were carried out using the model specimen applied the corrosion preventing method for the steel with corrosion product. From the laboratory test results, reductive reaction of the corrosion product due to electrons supplied from the sacrificial anode was confirmed. In addition, the products layer peeled off, and then the plate surfaces were finally exposed by repeating of renewed corrosion reaction of the steel surface as the cathode, Fe3O4. Regarding atmospheric exposure tests, the effects of the composition of the sintered plate and the surface preparation on the corrosion products were clarified. In addition to this, the corrosion prevention in an atmospheric environment was also experimentally verified.
Matsubara T.,Japan Exlan Co. |
Gofuku A.,Okayama University
Transactions of the Atomic Energy Society of Japan | Year: 2012
Up to now, few studies have been devoted to investigate all the steps from the creation to the application of operation manuals and to consider human factors of operators in order to prevent the troubles caused by the problems of operation manuals. This paper deals with the steps and the human factors. It this study, the troubles caused by the problems are examined and the causes of these troubles are investigated. Here, the general procedure for creating an operation manual from the experiences of authors to create some operation manuals is first summarized and the method of analyzing the tendency of troubles and their causes is considered. From this consideration, it is concluded that there are several steps that cause a trouble in the creation of operation manuals and it is necessary to analyze the causes of a trouble from the viewpoints of creators and operators of operation manuals. Next, in this study, the troubles reported in Nuclear Information Archives (NUCIA) as an example of real trouble data bases are analyzed, a list of trouble causes related to the problems of operation manuals is made, and using this list, the causes of troubles reported in NUCIA are categorized. From analysis results, it is concluded that there are some steps that cause troubles in creating operation manuals, that the creation of a checklist and the description of necessary information are sometimes missing, and that operators take operations following operation manuals but sometimes do not understand the contents of operation manuals and/or have little knowledge for operations. © 2012 Atomic Energy Society of Japan All Rights Reserved.
JAPAN EXLAN COMPANY Ltd and Toyobo Co. | Date: 2012-06-29
The present invention provides padding which is suitable as bedding and clothing items having both exothermic property upon moisture absorption and bulkiness in high levels and being able to give comfortable environment to human body. The present invention relates to a padding containing 25 to 85% by weight of polyester fiber, characterized in that the padding contains 15 to 75% by weight of a cross-linked polyacrylate fiber of a magnesium salt type and/or a calcium salt type.
Japan Exlan Company Ltd | Date: 2012-11-07
In the prior art, there has not been provided a fiber that can quickly and persistently deodorize and absorb the smell and the damp feeling due to body fluid generated from the body. The present invention provides a fiber having such property, and specifically provides a moisture-absorbing and deodorizing fiber, characterized in that, a basic polymer is ionically-bonded in an amount of 0.2 to 4 mmol/g as an amount of amino group onto the surface of a moisture-absorbing fiber having a crosslinked structure and also having 3 to 8 mmol/g of carboxyl group.
Ema T.,Okayama University |
Komiyama T.,Japan Exlan Co. |
Sunami S.,Okayama University |
Sakai T.,Okayama University
RSC Advances | Year: 2014
The simultaneous addition of 40% tetrabutylammonium hydroxide (TBAH) and crown ether (18-crown-6) promptly produced a clear aqueous solution of cellulose (10 wt%) at room temperature. © 2014 The Royal Society of Chemistry.