Advanced Ion Beam Material Processing Projects in Japan

1992 ◽  
Vol 268 ◽  
Author(s):  
Isao Yamada
Keyword(s):  
Large Scale ◽  
Ion Beam ◽  
Development Program ◽  
Industrial Applications ◽  
Development Project ◽  
Ministry Of Education ◽  
Major Research ◽  
Research Facility ◽  
Process Technology ◽  
Large Scale Project

ABSTRACTR&D projects of ion beam systems and ion beam process technology have been conducted under the National Research and Development Program known as the “Large-Scale project”. The project includes development of five large-scale ion beam systems and their application for surface modifications. Under another program called the National Research Facility Development Project, the Ion Engineering Center Corporation has been established in order to promote industrial applications of ion beam processes. This paper reviews those projects and recent progress on development of large-scale ion beam systems and related materials processing technology. Major research projects which have been funded by the Ministry of Education for ion beam related researches are also reviewed.

Microstructural characterization of sol-gel coating on PET films

1994 ◽  
Vol 52 ◽  
pp. 886-887
Author(s):  
R. T. Chen ◽  
R.A. Norwood
Keyword(s):  
Ion Beam ◽  
Sol Gel ◽  
Industrial Applications ◽  
Hard Coatings ◽  
Nanometer Scale ◽  
Ion Beam Sputtering ◽  
Process Technology ◽  
Refractive Index Measurement ◽  
Organically Modified ◽  
Pet Films

Sol-gel processing has been used to control the structure of a material on a nanometer scale in preparing advanced ceramics and glasses. Film coating using the sol-gel process was also found to be a viable process technology in applications such as optical, porous, antireflection and hard coatings. In this study, organically modified silicate (Ormosil) coatings are applied to PET films for various industrial applications. Sol-gel materials are known to exhibit nanometer scale structures which havepreviously been characterized by small-angle X-ray scattering (SAXS), neutron scattering and light scattering. Imaging of the ultrafine sol-gel structures has also been performed using an ultrahigh resolution replica/TEM technique. The objective of this study was to evaluate the ultrafine structures inthe sol gel coatings using a direct imaging technique: atomic force microscopy (AFM). In addition, correlation of microstructures with processing parameters, coating density and other physical properties will be discussed.The materials evaluated are organically modified silicate coatings on PET film substrates. Refractive index measurement by the prism coupling method was used to assess density of the sol-gel coating.AFM imaging was performed on a Nanoscope III AFM (by Digital Instruments) using constant force mode. Solgel coating samples coated with a thin layer of Ft (by ion beam sputtering) were also examined by STM in order to confirm the structures observed in the contact type AFM. In addition, to compare the previous results, sol-gel powder samples were also prepared by ultrasonication followed by Pt/Au shadowing and examined using a JEOL 100CX TEM.

scholarly journals A Stakeholder Analysis of the Development of a Large-Scale Professional Development Program

2021 ◽  
pp. 1-30
Author(s):  
Ola Helenius
Keyword(s):  
Professional Development ◽  
Teacher Development ◽  
Large Scale ◽  
Development Process ◽  
Stakeholder Analysis ◽  
Development Program ◽  
Development Project ◽  
Theory Of Change ◽  
Determination Process ◽  
The Impact

Abstract The development of a large-scale professional development project for Swedish mathematics teachers is retrospectively examined. By referring to documentation produced by stakeholders in the development process, the stakeholder’s design recommendations and underlying assumptions on teacher development are described. Seeing the development as a co-determination process explains how research-based principles appearing early in the process gradually change to become something different in the end, without the reasons for this shift ever being explicitly discussed in stakeholders’ documentations. It is discussed whether the distributed way of constructing the program might cause difficulties in sticking to an explicit theory of change. The impact sheet to this article can be accessed at 10.6084/m9.figshare.16610113.

Programme evaluation and educational policy development : an exploration

2021 ◽  
Author(s):  
◽  
Patricia Helen Jackman
Keyword(s):  
Educational Policy ◽  
Policy Development ◽  
Large Scale ◽  
Development Project ◽  
Programme Evaluation ◽  
Ministry Of Education ◽  
Research Division ◽  
Public Inquiry ◽  
Global Demand ◽  
The Relationship

<p>Programme evaluation in education began as a form of public inquiry and has developed into a tool for informing policy development. This process has accompanied the government's focus on outcomes rather than outputs and the current global demand for accountability. In recent years there has been an increase in the letting of contracts by the New Zealand Ministry of Education for the production of evidence to support educational policy and this has included the evaluation of programmes designed to improve teaching and raise student achievement.  The study reports the historical development of programme evaluation and the different schools of thought which have evolved. It outlines the management of formative programme evaluation within the Ministry of Education's Research Division and describes Rist's approach to policy making, used in the Numeracy Development Project. Two large-scale programmes, the Strengthening Education in Mangere/Otara (SEMO) Project and the Numeracy Development Project, are discussed as examples of initiatives involving programme evaluation. The results of both have informed policy and have been extended more widely. The relationship between research and programme evaluation is discussed with reference to the Performance-Based Research Fund.</p>

Programme evaluation and educational policy development : an exploration

2021 ◽  
Author(s):  
◽  
Patricia Helen Jackman
Keyword(s):  
Educational Policy ◽  
Policy Development ◽  
Large Scale ◽  
Development Project ◽  
Programme Evaluation ◽  
Ministry Of Education ◽  
Research Division ◽  
Public Inquiry ◽  
Global Demand ◽  
The Relationship

<p>Programme evaluation in education began as a form of public inquiry and has developed into a tool for informing policy development. This process has accompanied the government's focus on outcomes rather than outputs and the current global demand for accountability. In recent years there has been an increase in the letting of contracts by the New Zealand Ministry of Education for the production of evidence to support educational policy and this has included the evaluation of programmes designed to improve teaching and raise student achievement.  The study reports the historical development of programme evaluation and the different schools of thought which have evolved. It outlines the management of formative programme evaluation within the Ministry of Education's Research Division and describes Rist's approach to policy making, used in the Numeracy Development Project. Two large-scale programmes, the Strengthening Education in Mangere/Otara (SEMO) Project and the Numeracy Development Project, are discussed as examples of initiatives involving programme evaluation. The results of both have informed policy and have been extended more widely. The relationship between research and programme evaluation is discussed with reference to the Performance-Based Research Fund.</p>

Coal mining-disturbed land reclamation laws

2020 ◽  
pp. 15-26
Author(s):  
T. V. Galanina ◽  
M. I. Baumgarten ◽  
T. G. Koroleva
Keyword(s):  
Large Scale ◽  
Land Reclamation ◽  
Mining Industry ◽  
Development Program ◽  
Soil Disturbance ◽  
Open Pit ◽  
Open Pit Mining ◽  
Disturbed Land ◽  
Critical Problems ◽  
Production Output

Large-scale mining disturbs wide areas of land. The development program for the mining industry, with an expected considerable increase in production output, aggravates the problem with even vaster territories exposed to the adverse anthropogenic impact. Recovery of mining-induced ecosystems in the mineral-extracting regions becomes the top priority objective. There are many restoration mechanisms, and they should be used in integration and be highly technologically intensive as the environmental impact is many-sided. This involves pollution of water, generation of much waste and soil disturbance which is the most typical of open pit mining. Scale disturbance of land, withdrawal of farming land, land pollution and littering are critical problems to the solved in the first place. One of the way outs is highquality reclamation. This article reviews the effective rules and regulations on reclamation. The mechanism is proposed for the legal control of disturbed land reclamation on a regional and federal level. Highly technologically intensive recovery of mining-induced landscape will be backed up by the natural environment restoration strategy proposed in the Disturbed Land Reclamation Concept.

Large-Scale Focused Helium Ion Beam Lithography

2021 ◽  
Vol 31 (5) ◽  
pp. 1-4
Author(s):  
Jay C. LeFebvre ◽  
Shane A. Cybart
Keyword(s):  
Large Scale ◽  
Ion Beam ◽  
Ion Beam Lithography ◽  
Helium Ion

scholarly journals Time-resolved PIV measurements of a deflected submerged jet interacting with liquid-gas and liquid-liquid interfaces

2021 ◽  
Author(s):  
Stefan Puttinger ◽  
Mahdi Saeedipour
Keyword(s):  
Liquid Layer ◽  
Large Scale ◽  
Free Surface Flow ◽  
Industrial Applications ◽  
Liquid Pool ◽  
Surface Flow ◽  
Two Phase ◽  
Time Resolved ◽  
Submerged Jet ◽  
Major Interest

AbstractThis paper presents an experimental investigation on the interactions of a deflected submerged jet into a liquid pool with its above interface in the absence and presence of an additional lighter liquid. Whereas the former is a free surface flow, the latter mimics a situation of two stratified liquids where the liquid-liquid interface is disturbed by large-scale motions in the liquid pool. Such configurations are encountered in various industrial applications and, in most cases, it is of major interest to avoid the entrainment of droplets from the lighter liquid into the main flow. Therefore, it is important to understand the fluid dynamics in such configurations and to analyze the differences between the cases with and without the additional liquid layer. To study this problem, we applied time-resolved particle image velocimetry experiments with high spatial resolution. A detailed data analysis of a small layer beneath the interface shows that although the presence of an additional liquid layer stabilizes the oscillations of the submerged jet significantly, the amount of kinetic energy, enstrophy, and velocity fluctuations concentrated in the proximity of the interface is higher when the oil layer is present. In addition, we analyze the energy distribution across the eigenmodes of a proper orthogonal distribution and the distribution of strain and vortex dominated regions. As the main objective of this study, these high-resolution time-resolved experimental data provide a validation platform for the development of new models in the context of the volume of fluid-based large eddy simulation of turbulent two-phase flows.

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