Kazuhisa Miura, Tomomi Inada, Kensaku Nomura, Masaaki Yokotani, Tetsuya Kubota and Tetsuya Akagi
Aims to offer some ways of improving and developing the residents in the dormitory of Tsuyama National College of Technology, Tsuyama, Japan.
Abstract
Purpose
Aims to offer some ways of improving and developing the residents in the dormitory of Tsuyama National College of Technology, Tsuyama, Japan.
Design/methodology/approach
Describes how in order to calm the dormitory atmosphere, strict regulations had been adopted since the foundation times for the college, which sometimes led to deplorable happenings. After facing dormitory issues from a new perspective in 1990, school authorities abandoned the allegiance to supervision. The dormitory affairs committee has stimulated the residents' intrinsic motivation since then, leading to the improvements in the dormitory. Describes the course of improvement and the present condition of the dormitory.
Findings
Advocates the necessity of broadening residents' horizons to continually improve their quality of life in the dormitory.
Research limitations/implications
It would take some years to ascertain our policy to be desirable for the dormitory. During that time, almost the entire membership of the dormitory affairs committee would be replaced, which might lead to a drastic turnabout on dormitory policy.
Practical implications
A very useful source of information and impartial advice for the staves who involve in dormitory issues of other colleges.
Originality/value
Demonstrates unique policies on improvement for the dormitory, which are different from those adopted in other colleges of technology.
Details
Keywords
Prem Prasad Paudel, Hiroshi Omura, Tetsuya Kubota and Koichi Morita
Nepal is located in mountainous terrain in the Himalayan arc, where landslides are common and are the main cause of natural hazards. On 23 July 2002, daily rainfall of 300mm…
Abstract
Nepal is located in mountainous terrain in the Himalayan arc, where landslides are common and are the main cause of natural hazards. On 23 July 2002, daily rainfall of 300mm triggered a landslide of 9,000m3 at head valley of 39o, which has quaternary unconsolidated gravel rock base coated with thin soil, tree species and shrubs. The landslide changed into debris flow and to flash flood. The average velocity was 30m/sec. and the equivalent friction angle of the materials was 28o. A total of 16 people lost their lives in Matatirtha village, near to Kathmandu city and millions of properties were damaged. To minimize the disaster, warning system development of standards such as promotion of education level to people and preparation of hazard mapping are suggested.
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Yoshio Kobayashi, Tetsuya Ayame, Kyosuke Shibuya, Tomohiko Nakagawa, Yohsuke Kubota, Kohsuke Gonda and Noriaki Ohuchi
This paper aims to propose a simple method for stabilizing silica-coated silver iodide (AgI/SiO2) core-shell particles, of which a colloid solution functions as an X-ray contrast…
Abstract
Purpose
This paper aims to propose a simple method for stabilizing silica-coated silver iodide (AgI/SiO2) core-shell particles, of which a colloid solution functions as an X-ray contrast agent.
Design/methodology/approach
A colloid solution of AgI nanoparticles was prepared by mixing silver perchlorate and potassium iodide in water. The AgI/SiO2 nanoparticles were fabricated by a sol-gel method using NaOH, H2O and tetraethylorthosilicate in ethanol in the presence of AgI nanoparticles surface-modified with 3-mercaptopropyltrimethoxysilane.
Findings
The silica shells of AgI/SiO2 particles were dissolved near the AgI nanoparticle surface, when they were washed by a process composed of centrifugation, removal of supernatant with decantation, addition of water as a washing solution and a shake with a vortex mixer. In contrast, the shells were not damaged by using ethanol as the washing solution, i.e. ethanol-washing. An X-ray photoelectron spectroscopy spectrum of the silica was changed after the ethanol-washing, which indicated that the ethanol-washing had an effect on the chemical bonds in silica. The effect also acted on the silica shells of AgI/SiO2 particles, which did not damage the core-shell structure, i.e. controlled the dissolution of shell.
Originality/value
The paper demonstrates that the ethanol-washing is quite useful for stabilizing the core-shell structure composed of the silica shells.
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Kavindra Kandpal and Navneet Gupta
The purpose of this paper is to present a comprehensive review on development and future trends in zinc oxide thin film transistors (ZnO TFTs). This paper presents the development…
Abstract
Purpose
The purpose of this paper is to present a comprehensive review on development and future trends in zinc oxide thin film transistors (ZnO TFTs). This paper presents the development of TFT technology starting from amorphous silicon, poly-Si to ZnO TFTs. This paper also discusses about transport and device modeling of ZnO TFT and provides a comparative analysis with other TFTs on the basis of performance parameters.
Design/methodology/approach
It highlights the need of high–k dielectrics for low leakage and low threshold voltage in ZnO TFTs. This paper also explains the effect of grain boundaries, trap densities and threshold voltage shift on the performance of ZnO TFT. Moreover, it also addresses the challenges like requirement of stable p-type ZnO semiconductor for various electronic applications and high value of ZnO mobility to meet growing demand of high-definition light emitting diode TV (HD-LED TV).
Findings
This review will motivate the readers to further investigate the conduction mechanism, best alternate for gate-dielectric and the deposition technique optimization for the enhancement of the performance of ZnO TFTs.
Originality/value
This is a literature review. The technological evolution of TFT in general and ZnO TFT in particular is presented in this paper.