A dual-band planar array of connected dipoles: Experimental validation based on bistatic RCS measurements

Rigorous equivalent networks representing connected arrays in transmission and reception are derived in this paper. These equivalent networks are not based on reciprocity but on Green's functions. Thus, all components have well identified and physically meaningful roles. A dual-band connected array demonstrator is then presented to validate the...

Human Ultraweak Photon Emission and the Yin Yang Concept of Chinese Medicine

The relationship between connective tissue and meridian function is discussed in terms of energy transmission. The network of hydrogen-bonded water molecules interspersed within the collagen fibrillar matrix is especially significant for both the sensitivity of connective tissue to weak signals of mechanical pressure, heat, or electricity and...

A Novel Printed-Circuit-Board Feeding Structure for Common-Mode Rejection in Wide-Scanning Connected Arrays of Dipoles

A novel Printed-Circuit-Board (PCB) solution to avoid common-mode resonances in connected arrays is proposed in this paper. It consists in a loop-shaped circuit that rejects common-mode current propagation over more than an octave bandwidth. The use of such common-mode rejection loop allows the design of linear and dual polarized array of...

Geocapacity: Economic feasibility of CCS in networked systems

A Decision Support System (DSS) has been developed to evaluate the technical and economical feasibility of CO2 storage in the subsurface. The DSS performs a detailed, stochastic analysis of the technical and economical aspects of a CCS project, which consists of any number of CO2 sources and sinks plus the connecting pipeline network. The DSS...

TRICLOBS portable triband color lowlight observation system

We present the design and first test results of the TRICLOBS (TRI-band Color Low-light OBServation) system The TRICLOBS is an all-day all-weather surveillance and navigation tool. Its sensor suite consists of two digital image intensifiers (Photonis ICU's) and an uncooled longwave infrared microbolometer (XenICS Gobi 384). The night vision...

Frequency Selective Surfaces for extended Bandwidth backing reflector functions

This paper deals with the use of Frequency Selective Surfaces (FSS) to increase the Efficiency × Bandwidth product in Ultra-Wide Band (UWB) antenna arrays whose efficiency is limited by the front-to-back ratio. If the backing reflector is realized in one metal plane solution its location will be suitable as antenna ground plane only on a limited...

Bringing internet connectivity to rural Zambia using a collaborative approach

This paper presents an initiative to bring connectivity to rural Zambia using a collaborative approach. In particular, it focuses on a proof-of-concept Internet service that has been implemented in rural Macha located in the Southern Province of Zambia. The service operates using satellite terminals (for connection to the Internet) and a...

Ultrawide-Band Properties of Long Slot Arrays

In this paper the ultrawide-band properties of a long slot array are described. The study provides the rigorously derived Green’s function (GF) for an infinite long slot array. FromtheseGF active impedances and radiation patterns for various cases were obtained. The ultrawide bandwidths and the array performances of such apertures are...

Symbiosis of chemometrics and metabolomics: Past, present, and future

Metabolomics is a growing area in the field of systems biology. Metabolomics has already a long history and also the connection of metabolomics with chemometrics goes back some time. This review discusses the symbiosis of metabolomics and chemometrics with emphasis on the medical domain, puts the combination of the two in historical perspective...

Gene expression profiling of resting and activated vascular smooth muscle cells by serial analysis of gene expression and clustering analysis

Migration and proliferation of vascular smooth muscle cells (SMCs) are key events in atherosclerosis. However, little is known about alterations in gene expression upon transition of the quiescent, contractile SMC to the proliferative SMC. We performed serial analysis of gene expression (SAGE) of cultured, human SMCs, either grown under resting...

Current sharing between diode clamps of polar capacitor bank

The layout of a capacitor bank with clamping diodes is investigated based on an experimental 5.5-kJ energy storage unit for pulsed power applications. While the current sharing between parallel-connected capacitors is good, it is not the case with parallel-connected clamping diodes. Despite a very-low-inductance busbar and attention to...

Evaluation of the 10th international course on implementation of wind energy: ECN, April 2-13, 2001

This report is an evaluation of the

Steel-board composite floors

Work currently underway in Holland aDd the UK aims to increase the already considerable potential for light steel framing in buildings by developing rules for so-called "dry composites". This paper discusses both theoretical and experimental work to develop validated design mies for floor systems comprising cold formed joists and timber boarding...

InP-based spotsize converter for integration with switching decvices

We have designed and fabricated an InGaAsP-InP based spotsize converter (SSC), which is compatible with the waveguide structure used in monolithic integrated ADM's and OXC's. In a first experiment, a total coupling loss to a cleaved fiber of 4.2 dB for TE and 3.9 dB for TM was realized with a 1.5 mm-long SSC. The 1-dB alignment tolerances...

Mechanical properties of the collagen network in human articular cartilage as measured by osmotic stress technique

We have used an isotropic osmotic stress technique to assess the swelling pressures of human articular cartilage over a wide range of hydrations in order to determine from these measurements, for the first time, the tensile stress in the collagen network, P(c), as a function of hydration. Osmotic stress was applied by means of calibrated...

The Finite Element Discretization for Stream-Function Problems on Multiply Connected Domains

The no-normal-flow condition states that the stream-function is constant at solid boundaries. For multiply connected domains these (unknown) constants differ per boundary and must be determined from integral conditions. This complicates discretization and solution of the problem considerably. In this paper we describe a simple, elegant, and...

Sensitive fluorimetric quantitation of pyridinium and pentosidine crosslinks in biological samples in a single high-performance liquid chromatographic run

A high-performance liquid chromatographic assay was developed for pyridinium crosslinks and pentosidine in mature collagen of a wide variety of connective tissue hydrolysates by a simple two-step isocratic assay using a reversed-phase column. The crosslinks (including the internal standard pyridoxine) were optimally detected by their native...