856 Result(s)
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Chapter
The Growth of Fatigue Short Cracks Emanating From Small Holes in 16Mn Steel Specimens
Short fatigue crack growth, from small holes at 16 Mn steel specimens, was studied under rotating bending and constant amplitude loading conditions. A plastic replica technique was employed for monitoring the ...
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Chapter
Study on Fatigue Crack Propagation Rate in Welded Joints
This paper deals with the fatigue crack propagation rate in the welded seam, HAZ, ba3e metal and propagation rate from base metal to welded seam in CT specimens which are submerged-arc welding joints of 16Mn s...
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Chapter
Concept of Fatigue Effective Stress and Constitutive Equation of Damaged Material
Effective stress is one of the most important parameter in damage mechanics. An application of the concept of effective stress forms the basis for describing the mechanical behavior of damaged material by cons...
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Chapter
Transverse Electrooptic Properties of Magnetron Sputtered PLZT Thin Films
Ferroelectric thin films of (Pb,La)(Zr,Ti)O3 ceramics were deposited on various substrates by magnetron sputtering. With the use of a phase-detection technique, the transverse electrooptic properties of the films...
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Chapter
Solid/Solid Adsorption and Preparation of Ethylene Adsorbents
A solid can disperse spontaneously onto the surface of a support to form a monolayer or submonolayer, we call it solid/solid adsoption. Novel adsorbents can be made by using this phenomenon to modify the surfa...
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Chapter
Advanced Organic Materials for Optoelectronic Integrated Devices, Interconnects, and Packaging
Organic materials complement many commonly used inorganic materials in optical devices due to their improved linear and nonlinear optical properties. Research has progressed on several fronts, investigating th...
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Chapter
Interface Control of Polymer-Based Light-Emitting Devices
Bilayer and multilayer polymer structures provide opportunities for new photophysics and new types of light emitting devices. Photoluminescent and electroluminescent studies of bilayer heterojunctions formed f...
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Chapter
Production of Poly(3-Hydroxybutyrate) by Recombinant Bacteria
In order to improve the production of poly(3-hydroxybutyrate) [P(3HB)], two different recombinant bacteria, Escherichia coli and Alcaligenes eutrophus were investigated. Firstly, recombinant E. coli harboring a s...
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Chapter and Conference Paper
Strain and Magnetoresistance Anisotropy of PR0.7SR0.3MNO3 Ultrathin Films
Recently, the doped manganese oxides have been the focus of intensive research due to the remarkable colossal magnetoresistance (CMR) effect observed in the system [1, 2, 3, 4]. The manganites are perovskite o...
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Chapter
Organic Superconductors: Designing Materials for the Future
Superconductivity was first observed in molecular based systems about twenty years ago. These (TMTSF)2X [TMTSF = tetramethyltetraselenafulvalene] superconductors have a quasi-one-dimensional stacked structure (se...
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Chapter
Downlink Capacity Enhancement in GSM System Using Multiple Beam Smart Antenna and SWR Implementation
Third-generation (3G) wireless systems need strategies to further improve performance, increase data rates and at the same time provide flexible and affordable support for multi-services and multi-standards. S...
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Chapter
Electrodynamics of High-Spin Molecular Magnet Materials: What’s New With Mn12-Acetate?
High-spin nanomagnets are fascinating materials due to the synthetic and design challenges inherent in the preparation of these materials, the cornucopia of novel low-temperature physical properties, and the p...
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Chapter
Complex Variable Solution of Plane Problem for Functionally Graded Materials
In recent years, there has been an extensive research interest on the functionally graded materials (FGMs). FGMs, unlike laminated or layered composites, provide continuously varying properties in a definable ...
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Chapter
Growth and Characterizations of Well-Aligned Carbon Nanotubes
Large arrays of well-aligned carbon nanotubes are first made possible on substrates in 1998 by plasma enhanced chemical deposition [1, 2] in which the diameter and length of each carbon nanotube are under control...
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Chapter
Core Failure of Sandwich Beams
Core failure modes were studied in composite sandwich beams under three-point bending and in cantilever beams under end loading. The beams consisted of unidirectional carbon/epoxy face sheets and a variety of ...
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Chapter
An Overview to Magnetic Beads Used in Electrochemical DNA Biosensors
Nucleic acid layers combined with electrochemical or optical transducers produce a new kind of affinity biosensors such as “DNA Biosensor” or “Genosensor” for small molecular weight molecules. Electrochemical ...
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Chapter and Conference Paper
Focused ion beam micromilling of GaN photonic devices with gas enhanced etching techniques
In this study, we shall present focused ion beam micromachining methods applied to facet modification and improvement in GaN-based laser devices. A 30 keV Ga+ ion beam was rastered over the GaN mirror facets. ...
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Chapter and Conference Paper
Strain relaxation and void reduction in SiC on Si by Ge predeposition
In this work, 120 nm cubic SiC layers have been grown on Si (111) by SSMBE, depositing 1ML of Ge at different temperatures before carbonization. In every case, SiC was epitaxially grown on Si (111) showing cha...
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Chapter and Conference Paper
Structural characterisation of spintronic GaMnAs and GaMnN heterostructures grown by molecular beam epitaxy
Observations of orthogonal orientations demonstrate the development of banded contrast features on inclined $$ \left\{ {\bar 1\bar 1\b...
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Chapter and Conference Paper
Nano Mechanical Analysis of IFM Force Profiles on Self-Assembled Monolayers
In this study, a defect-free, self-assembled monolayer of octadecyltrichlorosilane (OTS) was deposited on a silicon substrate. Nanoindentation experiments were performed with an interfacial force microscope (I...
