The behavior of steel structures subjected to seismic actions depends directly on the connections behavior. There are two current tendencies for ensuring the structural ductility: allowing the formation of plastic hinges in the beams by using reduced beam sections or reduced web sections or by ensuring the plastic hinge formation in the connection by using dissipative elements. This paper prese...

Nanostructured materials, designed for enhanced light absorption, are receiving increased scientific and technological interest. In this paper we propose a physical criterion for designing the cross-sectional shape of plasmonic nanowires for improved absorption of a given tightly focused illumination. The idea is to design a shape which increases the matching between the nanowire plasmon resona...

We describe a model for analytic analysis of transients in multicavity klystron output power and phase. Cavities are mod-eled as resonant circuits, while bunching of the beam is modeled using linear space-charge wave theory. Our analysis has been implemented in a computer program which we use in designing multicavity klystrons with stable output power and phase. We present as examples transient...

1 Basic context 2 Depictions in Luke-Acts 2.1 Status of the Church 2.2 Scribes and chief priests 2.3 Jerusalem Temple 2.4 Imprisonment of Peter and John 2.5 Role of Sadducees 2.6 Martyrdom of Stephen 2.7 Persecution in Damascus 2.8 Execution of James 2.9 Violence against Paul 2.10 Crowds in Corinth 2.11 Threats against Paul's life 2.12 Paul before a Sanhedrin 3 Elsewhere in the New Testament 3....

External links Here are some links to external sites that are relevant to Access to Knowledge and related issues. Hover over each link for more information on where it leads.

This paper addresses the integration of agents with external resources and services in enterprise computing environments. We propose an approach for interfacing agents and existing message routing and mediation engines based on the endpoint concept from the enterprise integration patterns of Hohpe and Woolf.

We have devised a method, based on a parametric array concept, to create a low-frequency (300-500 kHz) collimated ultrasound beam in fluids highly attenuating to sound. This collimated beam serves as the basis for designing an ultrasound visualization system that can be used in the oil exploration industry for down-hole imaging in drilling fluids. We present the results of two different approac...

The electron beam from the linear accelerator is of size ~ 2 mm, whereas the size of the electron beam profile required for actual treatment is usually larger than 2 2 cm up to 30 30 cm at the iso-center. Therefore, scattering foils were optimized and simulated using FLUKA code. The primar scattering foil as kept niform thickness y w u , whereas the secondary foil was of Gaussian shape with var...

Phase gratings have found an important application in the submm wavelength range with the development of heterodyne arrays in the past few years. These devices can be used as efficient beam splitters to match the signal beam of a single local oscillator source to an array of detector devices such as SISmixers or HEBs. Here we report on a phase grating developed for CHAMP theCarbon-Heterodyne-Ar...

Statistical methods for tomographic image reconstruction have shown considerable potential for improving image quality in X-ray CT. Penalized-likelihood (PL) image reconstruction methods require maximizing an objective function that is based on the log-likelihood of the sinogram measurements and on a roughness penalty function to control noise. In transmission tomography, PL methods (and MAP me...