STATEMENT OF PROBLEM It is not known whether different high-palladium alloys of similar composition possess comparable tensile strength properties associated with connector soldering. PURPOSE The purpose of this study was to evaluate the tensile strength properties of 2 high-palladium alloys on soldered connectors under simulated pre-ceramic and post-ceramic soldering conditions. MATERIAL A...

Accurate software simulation is an important step for testing mobile communication systems. It allows the evaluation of the system performance without the need for physical experiments. At an early testing stage, simulations are usually done considering transmissions over additive white Gaussian noise (AWGN) channels, which do not account for obstacles or motion between the transmitter (Tx) and...

This paper presents a transmitter (TX) and receiver (RX) with bowtie-antenna silicon lens for gas spectroscopy at 222-270 GHz, which are fabricated in IHP’s 0.13 μm SiGe BiCMOS technology. The TX RX use two integrated local oscillators 222 – 256 GHz 250 270 switched dual-band operation. Due to its directivity of about 27 dBi, the single enables an EIRP 25 dBm TX, therefore considerably higher 2...

BACKGROUND Macrophage infiltration in adipose tissue together with the aberrant production of pro-inflammatory cytokines has been identified as the key link between obesity and its related metabolic disorders. This study aims to isolate bioactive ingredients from the traditional Chinese herb Radix Astragali (Huangqi) that alleviate obesity-induced metabolic damage through inhibiting inflammatio...

In this paper we present measurements and analysis on the mechanical thermomechanical properties of LLM-105 based plastic bonded high explosive RX-55-DQ. Specifically uni-axial compression, thermal (CTE ratchet growth), for some provide a comparison to TATB-based PBX 9502. We also same property performed RX-55-DQ samples that underwent accelerated aging.

Abstract: In this paper, a chatter free sliding mode control(SMC) strategy for chaos synchronization is proposed to the nonlinear uncertain chaotic systems in the presence of unknown bounded uncertainties and external disturbances. The sliding mode surface with differential operators is introduced to divert the discontinuous function swith term into the first derivative of the control input, an...

As a potential solution for the backhaul of next-generation mobile or low Earth orbit (LEO) satellites, free-space optical (FSO), has received much attention recently. Various techniques have been suggested employing an intelligent reflecting surface (IRS) in FSO systems, such as anomalous reflection, power amplification, and beam splitting. It is also possible to deliver more receiver (Rx) by ...

The signals emanating from complex systems are usually composed of a mixture of different oscillations which, for a reliable analysis, should be separated from each other and from the inevitable background of noise. Here we introduce an adaptive decomposition tool-nonlinear mode decomposition (NMD)-which decomposes a given signal into a set of physically meaningful oscillations for any wave for...