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Browsing 09 Engineering by Issue Date

Now showing items 21-40 of 2363

A Microwave Applicator Using A Rectangular Wave-guide With 2 Symmetrically Placed Double L-septa For Processing Sheet Materials

Zhang Hz; Sanagavarapu Ananda; Beard Geoffrey; Belcher Warwick Rod (John Wiley & Sons Inc, 1994)

A microwave applicator using a rectangular waveguide with two symmetrically placed double L septa is proposed for processing dielectric sheet materials. The attenuation caused by the loaded lossy dielectric sheet is obtain ...
Development of Vegetation and Soil Indices for MODIS-EOS

Huete Alfredo; Justice C; Liu H. (Elsevier, 1994)

One of the primary interests of the NASA Earth Observing System (EOS) program is to study the role of vegetation in biospheric processes. Currently, the normalized difference vegetation index (NDVI) is utilized to study ...
A Modified Soil Adjusted Vegetation Index

Qi J; Chehbouni A; Huete Alfredo; Kerr Y; Sorooshian S (Elsevier, 1994)

There is currently a great deal of interest in the quantitative characterization of temporal and spatial vegetation patterns with remotely sensed data for the study of earth system science and global change. Spectral models ...
An Error and Sensitivity Analysis of the Atmospheric- and Soil-Correcting Variants of the NDVI for the MODIS-EOS

Huete Alfredo; Liu H (IEEE, 1994)
A Dynamic Equivalent-circuit Model For Solid Magnetic Cores For High Switching Frequency Operations

Zhu Jianguo; Hui S; Ramsden Victor (IEEE-inst Electrical Electronics Engineers Inc, 1995)

This paper presents a dynamic equivalent circuit model of solid magnetic cores for high frequency operations in power electronic circuits. The effects of eddy current, domain wall motion, and hysteresis are taken into ...
Dependence of NDVI and SAVI on Sun/Sensor Geometry and Its Effect on fAPAR Relationships in Alfalfa

Epiphanio Josd; Huete Alfredo (Elsevier, 1995)

This article describes the impacts of sensor view and solar zenith angles on two vegetation indices -NDVI (normalized difference vegetation index) and SAVI (soil adjusted vegetation index). An evaluation of these geometric ...
Hydroxyapatite sintering characteristics: correlation with powder morphology by high-resolution microscopy

Ruys A; Sorrell Charles; Brandwood Arthur; Milthorpe Bruce (Springer, 1995)

Hydroxyapatite Cal0(PO4)6(OH)2 (HAp) is a hydrated calcium phosphate ceramic that closely resembles the chemical composition of bone mineral and is therefore one of the small group of bonereplacement materials classed as ...
Short fatigue crack growth in cast iron described using P-a curves

Taylor David; Li Jianchun; Giese A (Elsevier, 1995)

A new approach to the description of short crack growth - the P - a curve - has been tested using extensive data on submillimetre cracks in a grey cast iron. It is shown that this approach, in which the probability of ...
Dynamic condensation of mass and stiffness matrices

Zhang Nong (Academic Press, Elsevier Ltd, 1995)

Details are given of a procedure for condensing the mass and stiffness matrices of a structure for dynamic analysis. The condensed model is based on choosingncnatural frequencies and the corresponding modes of original ...
Computerised tool for hierarchical simulation modeling

Sawhney Anil; Abourizk Sm (Asce-Amer Soc Civil Eng, 1996)

Advancements in computing have enabled the development of effective tools for the modeling and analysis of construction operations. In particular, recent developments in object-oriented and event-driven programming were ...
Effects of Standing Litter on the Biophysical Interpretation of Plant Canopies with Spectral Indices

Van Leeuwen J; Huete Alfredo (Elsevier, 1996)

Litter is frequently present within vegetation canopies and thus contributes to the overall spectral response of a canopy. Consequently, litter will affect spectral indices designed to be sensitive to green vegetation, ...
A Generalized Dynamic Circuit Model Of Magnetic Cores For Low- And High-frequency Applications-Part II. Circuit Model Formulation And Implementation

Hui S; Zhu Jianguo; Ramsden Victor (IEEE-inst Electrical Electronics Engineers Inc, 1996)

This paper describes the formulation and implementation of a generalized dynamic magnetic core circuit model suitable for both low- and high-frequency applications. The behavior of magnetic cores with any arbitrary flux ...
Filter Backwash Water Recycling Using Crossflow Microfiltration

Vigneswaran Saravanamuth; Boonthanon Sompol; Prasanthi H (Elsevier Science Bv, 1996)

Experiments were carried out using crossflow microfiltration (CFMF) for treating filter backwash water from a water treatment plant, It was found that CFMF with backflush is technically feasible and highly efficient. The ...
A Detailed Investigation Of Phosphorus Removal In Soil And Slag Media

Lee Seung Hoon; Vigneswaran Saravanamuth; Chung Y (Taylor & Francis Group, 1997)

Kinetic studies on phosphorus (P as orthophosphate) sorption onto a sandy loam soil from North Sydney, Australia, and a slag (waste products from the BHP steel industry, Australia) revealed that more than 90% of the P was ...
Is salinity the only water quality parameter affected when saline water is disposed in rivers?

Kefford Benjamin (Kluwer Academic Publishers, 1998)

The effect of saline lake water disposal from the Lough Culvert Drainnge Schel11e on waLeI' quality of the Barwon River, in south west Victoria. Australia. was investigated. The Scheme is Llsed to regulate the levels of ...
Tribological Studies Of Poly(ether Ether Ketone) Blends

Stuart Barbara (Elsevier Sci Ltd, 1998)

A review of friction and wear studies of poly(ether ether ketone) (PEEK) blended with other polymers is presented. PEEK is a high performance thermoplastic now commonly employed in many engineering applications, but its ...
Construction project simulation using CYCLONE

Sawhney Anil; Abourizk Sm; Halpin D (Natl Research Council Canada, 1998)

Construction simulation is a powerful tool that can be used by a construction company for a number of tasks such as productivity measurement, risk analysis, resource planning, design and analysis of construction methods, ...
The Application Of Raman Spectroscopy To The Tribology Of Polymers

Stuart Barbara (Elsevier Sci Ltd, 1998)

This paper reviews the use of Raman spectroscopy for investigations in polymer tribology, In particular, a number of studies dealing with the problem of surface plasticisation in engineering polymers have been reported and ...
C- and Multiangle Ku-Band Synthetic Aperture Radar Data for Bare Soil Moisture Estimation in Agricultural Areas

Sano Edson; Moran M; Huete Alfredo; Miura Tomoaki (Elsevier, 1998)

A sensitivity analysis of C-band (5.3 GHz) and Ku-band (14.85 GHz) synthetic aperture radar (SAR) data to the bare soil moisture content of agricultural fields was conducted in this study. The C-band data were obtained ...
Interdiffusion in short-fibre reinforced hydroxyapatite ceramics

Knepper M; Milthorpe Bruce; Moricca S (Springer New York LLC, 1998)

Sintering in air and hot isostatic pressing are production methods regarded as being capable of producing fibre-reinforced hydroxyapatite ceramics for biomedical applications. These composites may have the advantage of ...

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