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Fukuoka, Japan

Fukuoka Institute of Technology is a private university in East District of Fukuoka city, Fukuoka Prefecture, Japan. The predecessor of the school was founded in 1954, and it was chartered as a university in 1963. It is located near Fukkōdaimae Station. Wikipedia.

Geng F.,Japan International Center for Materials Nanoarchitectonics | Ma R.,Japan International Center for Materials Nanoarchitectonics | Ebina Y.,Japan International Center for Materials Nanoarchitectonics | Yamauchi Y.,Japan International Center for Materials Nanoarchitectonics | And 2 more authors.
Journal of the American Chemical Society | Year: 2014

Platy microcrystals of a typical layered material, protonated titanate, have been shown to undergo an enormous degree of swelling in aqueous solutions of various amines, including tertiary amines, quaternary ammonium hydroxides, and primary amines. Introducing these solutions expanded the crystal gallery height by up to ∼100-fold. Through systematic analysis, we determined that ammonium ion intercalation is predominantly affected by the acid-base equilibrium and that the degree of swelling or inflow of H2O is controlled by the osmotic pressure balance between the gallery and the solution environment, both of which are relatively independent of electrolyte identity but substantially dependent on molarity. In solutions of tertiary amines and quaternary ammonium hydroxides, the uptake of ammonium ions increases nearly linearly with increasing external concentration before reaching a saturation plateau, i.e., ∼40% relative to the cation-exchange capacity of the crystals used. The only exception is tetrabutylammonium ions, which yield a lower saturation value, ∼30%, owing to steric effects. The swelling behaviors in some primary amine solutions differ as a result of the effect of attractive forces between amine solute molecules on the solution osmotic pressure. Although the swelling is essentially colligative in nature, the stability of the resultant swollen structure is heavily dependent on the chemical nature of the guest ions. Intercalated ions of higher polarity and smaller size help stabilize the swollen structure, whereas ions of lower polarity and larger size lead readily to exfoliation. The insight gained from this study sheds new light on both the incorporation of guest molecules into a gallery of layered structures in general and the exfoliation of materials into elementary single-layer nanosheets. © 2014 American Chemical Society. Source

Barolli L.,Fukuoka Institute of Technology | Xhafa F.,University of Barcelona
IEEE Transactions on Industrial Electronics | Year: 2011

With the fast growth of the Internet infrastructure and the use of large-scale complex applications in industries, transport, logistics, government, health, and businesses, there is an increasing need to design and deploy multifeatured networking applications. Important features of such applications include the capability to be self-organized, be decentralized, integrate different types of resources (personal computers, laptops, and mobile and sensor devices), and provide global, transparent, and secure access to resources. Moreover, such applications should support not only traditional forms of reliable distributing computing and optimization of resources but also various forms of collaborative activities, such as business, online learning, and social networks in an intelligent and secure environment. In this paper, we present the Juxtapose (JXTA)-Overlay, which is a JXTA-based peer-to-peer (P2P) platform designed with the aim to leverage capabilities of Java, JXTA, and P2P technologies to support distributed and collaborative systems. The platform can be used not only for efficient and reliable distributed computing but also for collaborative activities and ubiquitous computing by integrating in the platform end devices. The design of a user interface as well as security issues are also tackled. We evaluate the proposed system by experimental study and show its usefulness for massive processing computations and e-learning applications. © 2010 IEEE. Source

Morooka M.,Fukuoka Institute of Technology
Journal of Materials Science: Materials in Electronics | Year: 2012

The conditions required for SIMS measurement, namely the detection depth of the SIMS signal and an appropriate measurement cycle, to obtain a reliable shape, size and atom number of nano-sized agglomerates in Si have been investigated. Au agglomerates in Si generated during annealing at 900 °C for 360 h are measured by an appropriate SIMS method and it is found that the Au agglomerate has a spherical shape with a concentration of 5.4 9 1021 Au atoms/cm3. The SIMS results agree wellwith the calculation of spherical agglomerates. The size of agglomerates larger than 20 nm and the Au atom number in agglomerates larger than several nm can be measured in a usual SIMS experiment. © 2011 Springer Science+Business Media, LLC. Source

Iwata H.,Fukuoka Institute of Technology | Okada K.,Kyoto University
Ecological Economics | Year: 2011

This paper examines the effects of environmental performance on financial performance using the data of Japanese manufacturing firms from 2004 to 2008. As the environmental performance, our study considers the two different environmental issues of waste and greenhouse gas emissions in capturing the effects of corporate environmental management on financial performance. In addition, to clarify how each financial performance responds to a firm's effort in dealing with different environmental issues, we utilize many financial performance indices reflecting various market evaluations. Our estimation results show the different effects of each environmental performance on financial performance. Waste emissions do not generally have significant effects on financial performance. On the other hand, greenhouse gas reduction leads to an increase in financial performance in the whole sample and clean industries, although it does not have significant effects on financial performance in dirty industries. Furthermore, as the firm growth rate increases, the partial effects of waste emissions on financial performance decrease, whereas the partial effects of greenhouse gas emissions on financial performance increase. © 2011 Elsevier B.V. Source

Miyamoto N.,Fukuoka Institute of Technology | Nakato T.,Kyushu Institute of Technology
Israel Journal of Chemistry | Year: 2012

Inorganic layered crystals such as clay minerals, layered niobates, and graphite are exfoliated in solvents to form colloidal dispersions of extremely thin inorganic nanosheets. Recently, the liquid crystal phases of these "nanosheet colloids" have been rediscovered and are attracting interest as new types of inorganic liquid crystals. The huge anisotropy of the mesogenic nanosheets compared to other liquid crystal systems is an important feature of the nanosheet liquid crystals for fundamental studies in the fields of colloid science and soft matter physics. In addition, the rich functionalities intrinsic to inorganic materials open a variety of applications such as smart colloids and composite materials with structural regularity. In this article, the recent progress of the emerging new materials of inorganic nanosheet liquid crystals is reviewed with a focus on the behaviors of each system, alignment by external field, and theoretical aspects. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

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