A 64 X64-bit iterating multiplier, the Stanford Pipelined Iterative Multiplier (SPIM), is presented. Tbe pipelined array consists of a small tree of 4:2 adders. The 4:2 tree is better suited than a Wallace tree for a VLSI implementation because it is a more regular structure. A 4:2 carry-save accumulator at the bottom of the array is used to iteratively accumulate partial products, allowing a p...

In this paper we present a low power temporal-difference image sensor with wireless communication capability designed specifically for imaging sensor networks. The event-based image sensor features a 64 64 pixel array and can also report standard analog intensity images. An ultra-wide-band radio channel allows to transmit digital temporal difference images wirelessly to a receiver with high rat...

BACKGROUND Growth failure in children less than five years old can lead to the serious complications such as increased mortality, learning difficulties or physical disability. The aim of this study was to investigate the nonorganic factors affecting the growth trend in less than two years children living in Zanjan, Iran. METHODS This longitudinal study was conducted on a sample of 3566 childr...

Recent industry developments mark a milestone in the evolution of 64-bit computing. 64-bit computing has been around for a long time in mainframe, reduced instruction set computers (RISC), and, more recently, in Intel IA-64 Itanium® architectures. Now, 64-bit computing is being standardized and driven into volume markets by AMD and Intel in processors that are based on the mainstream x86 archit...