4,772 Result(s)
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Engineering
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Article
A new method for designing circular waveguide phaser with small ellipticity
A method for calculating the phase shift of a dielectrically loaded circular waveguide with small ellipticity is described. It gives an excellent result for enqineering purposes, although it is not rigorous in...
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Article
Investigation of possibility of flow field diagnostics by laser induced biacetyl phosphorescence
Experimental results of laser induced phosphorescence of biacetyl triplet3A u in a mixture of biacetyl and N2 show that: the lifetime of phosphorescence is a function of tempera...
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Chapter and Conference Paper
Analysis of a time-shared central server system with heterogeneous distributed stations
We consider a service system consisting of a time-shared central server (CPU) and a number of geographically distributed stations. Customers send service requirements to the CPU through terminals at the statio...
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Article
Principles of flow field diagnostics by laser induced biacetyl phosphorescence
A new method for measuring the density, temperature and velocity of N2 gas flow by laser induced biacetyl phosphorescence is proposed. The characteristics of the laser induced phosphorescence of biacetyl mixed wi...
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Article
Integrated tuning elements for SIS mixers
The use of inductive elements to tune out the junction capacitance in SIS mixers is examined. Two new integrated tuning structures are introduced which overcome the limitations of earlier designs.
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Article
The double-light-beam method in three-dimensional scattered-light photoelasticity
This paper presents a new scattered-light photoelasticity technique which may be called the double-light-beam measurement method. Principal-stress directions and relative retardations related to the principal-...
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Article
Plane-stress crack-tip fields for power-law hardening orthotropic materials
Plane stress mode I near-tip fields in orthotropic materials are examined. Plastic orthotropy is described by Hill's quadratic yield function and the strain hardening behavior is given by an appropriate genera...
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Article
Low temperature open tube Zn diffusion in InP/InGaAs(P)
To fabricate quasi-planar optoelectronic integrated circuits (OEICs), a new open tube Zn diffusion method has been developed. The characteristics of Zn diffusion in InP/InGaAs(P) heterostructure materials at c...
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Article
ARMA modeling of fourth-order cumulants and phase estimation
A new procedure is proposed for ARMA modeling of fourth-order cumulants and trispectrum estimation of non-Gaussian stationary random processes. The new procedure is applied to the identification of nonminimum ...
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Article
Quasi-planar integration of an InGaAsP/InP double collection region HBT and an edge-emitting led with Mn doped active layer
A monolithically integrated InGaAsP/InP device including an HBT and an E-LED was fabricated with quasi-planar structure using Mn doped active layer and selective Zn diffusion as well as polyimide protection. 3...
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Article
Plane-stress crack-tip fields for perfectly plastic orthotropic materials
Plane stress mode I crack-tip fields for perfectly plastic orthotropic materials are studied. Plastic orthotropy is described by Hill's quadratic yield function. The construction of crack-tip fields is based o...
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Chapter and Conference Paper
Automation in Manufacturing
Automation in manufacturing refers to putting new products into high volume production while ensuring that the parts are designed for the available manufacturing process. It requires building an integrated mod...
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Article
Equation of state calculations for hot, dense matter at arbitrary densities and temperatures
Within the approximations of spherical lattice cell, central-field, and relativistic Fermi statistics, an algorithm with average atom model is presented to calculate the electronic energy levels and equation o...
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Article
Concentrated force in an infinite space of transversely isotropic material
An exact closed form solution for the displacements and stresses in a transversely isotropic infinite space due to concentrated point forces is presented, which contains the solution for the corresponding gran...
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Article
Attitude stability of a tethered satellite in locked rotation
The linear stability of the attitude of a tethered satellite system, consisting of an asymmetric satellite with two equal tethered masses arranged vertically, is studied. The differential equations of motion a...
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Article
Some recent developments in the design of SIS mixers
SIS mixers in which superconducting tuning elements are integrated with the tunnel junctions have resulted in very low noise heterodyne receivers in the range 68–260 GHz. Above ∼120 GHz the need for extremely ...
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Article
Plane-strain mixed-mode near-tip fields in elastic perfectly plastic solids under small-scale yielding conditions
Within the context of the small-strain approach, plane-strain mixed-mode near-tip fields of a stationary crack in an elastic perfectly plastic Mises solid under small-scale yielding conditions are examined by ...
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Chapter
A Fictitious Domain Method for the Incompressible Navier-Stokes Equations
In this article we briefly discuss a fictitious domain method for the numerical solution of the Navier-Stokes equations modelling incompressible viscous flow. The methodology described here takes a systematic ...
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Article
Dislocation in an infinite poroelastic medium
First a generalized Volterra relation for a transient and coupled poroelastic medium of two and three dimensions is derived from a reciprocal theorem, which reveals a direct connection of the solid displacemen...
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Article
An exact solution for transversely isotropic, simply supported and layered rectangular plates
Levinson's solution for the problem of a simply supported rectangular plate of arbitrary thickness by normal surface loads is extended to the transversely isotropic and layered case. The exact closed form solu...
