Now showing items 1-10 of 16
Ray-optical prediction of radio-wave propagation characteristics in tunnel environments-Part 1 : theory
A tunnel is modeled as congregates of walls, with the wall being approximated by uniform impedance surface. The aim is to get a solution for a canonical problem ...
An overview of red-light surveillance cameras in Singapore
Unmanned, red-light surveillance camera systems help to reduce accident counts at intersections.
A charge-trapping-based technique to design low-voltage BiCMOS logic circuits
New BiCMOS logic circuits employing a charge trapping technique are presented. The circuits include an XOR gate and an adder. Submicrometer technologies are used in the simulation and the circuits’ performances ...
Ray-optical prediction of radio-wave propagation characteristics in tunnel environments-Part 2 : analysis and measurements
The uniform theory of diffraction (UTD) developed in Part 1 is used to predict narrow- and wide-band propagation characteristics in tunnels at 900- and 1800-MHz frequencies. Narrow-band propagation characteristics is shown ...
Failure analysis of bond pad metal peeling using FIB and AFM
Aluminum bond pads on semiconductor chips play an important role in chips functionality and reliability. Bond pad peeling during wire bonding process results in yield reduction. The failure mechanisms of the peeling must ...
On thermal boundary layers on a flat plate subjected to a variable heat flux
The problem of a steady forced convection thermal boundary-layer past a flat plate with a prescribed surface heat flux proportional to (1+x2)^m (m a constant) is investigated both analytically and numerically. In view of ...
Thermal spraying of functionally graded calcium phosphate coatings for biomedical implants
Biomedical requirements in a prosthesis are often complex and diverse in nature. Biomaterials for implants have to display a wide range of adaptability to suit the various stages of the bio-integration process of any foreign ...
Accuracy of internal fields in volume integral equation simulations of light scattering
We studied the accuracy of volume integral equation simulations of internal fields in small particles illuminated by a monochromatic plane wave as well as the accuracy of the scattered fields. We obtained this accuracy by ...
Modified logarithmic law for velocity distribution subjected to upward seepage
A modified logarithmic law is derived to describe the velocity distribution in open-channel flow with an upward seepage. The derived function agrees well with the experimental measurements conducted in a laboratory flume. ...
Pickup probability for sediment entrainment
The study presents a theoretical derivation of a new pick-up probability formulation for sediment transport. Sand particles are assumed to be subjected to a hydraulically rough flow. The ...