This paper discusses issues related to the RTCA document DO-254Design Assurance Guidance for Airborne Electronic Hardware and its consequences for hardware certification. In particular, problems related to circuits’ compliance with DO-254 in avionics and other industries are considered. Extensive literature review of the subject is given, including current views on and experiences of chipmanufa...

www.xilinx.com 1 © Copyright 2011–2012 Xilinx, Inc. XILINX, the Xilinx logo, Virtex, Spartan, ISE, and other designated brands included herein are trademarks of Xilinx in the United States and other countries. All other trademarks are the property of their respective owners. Single event effects (SEEs) are of a growing concern in high-reliability system development, yet there is much disparity ...

Filters with a pore size of 0.45 microm have been arbitrarily used for isolating dissolved organic carbon (DOC) in natural waters. This operationally defined DOC fraction often contains heterogeneous organic carbon compounds that may lead to inconsistent results when evaluating trihalomethane formation potential (THMFP). A finer pore size filter provides more homogeneous DOC properties and enab...

centroid, 19, 25, 30 circular displacement, 102 code convolutional, 36, 58 Elias, 256 Gallager-vanVoorhis, 255 Golomb, 218, 254 Golomb–Rice, 188 Levenstein, 256 monotonic, 254 prefix-free, 239 terminated convolutional, 37 trellis, 38 unary, 254 zero-tail terminated convolutional, 37 codebook, 26, 27 adaptive, 154 adaptive gain, 155 stochastic, 156 stochastic gain, 156 codec ACELP, 158 code exci...

www.xilinx.com 1 © 2009 Xilinx, Inc. XILINX, the Xilinx logo, Virtex, Spartan, ISE, and other designated brands included herein are trademarks of Xilinx in the United States and other countries. All other trademarks are the property of their respective owners. RTCA DO-254 [Ref 1] and its counterpart in Europe, EUROCAE ED-80 [Ref 2], are guidelines for the design of complex electronic hardware (...

PURPOSE To define transcriptional regulatory elements of the chicken beta A3/A1-crystallin gene. METHODS Reporter genes were made with fragments of the chicken beta A3/A1-crystallin gene fused to the bacterial gene encoding chloramphenicol acetyltransferase (CAT). The reporter plasmids were transfected into primary cultures of chicken-patched lens epithelium or fibroblast cells, and the CAT a...