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In networking systems today data rates are increasing beyond 15Gb/s and yet the installed backplanes are made of low cost materials with losses in excess of 30dB at 7.5GHz. Standards, such as IEEE802.3ap-10GBASE-KR and OIF-CEI25G, are specifying SerDes requirements for channels with 25dB loss at Nyquist and this has driven the development of SerDes with 4(More)
The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. ABSTRACT Growing interest in 21 cm tomography has led to the design and construction of broad-band radio interferometers with low noise, moderate angular resolution, high spectral resolution, and wide fields of view. With characteristics(More)
When provided with fecal pellets from uninfected (control) rats and rats infected with the tapeworm Hymenolepis diminuta, more fed and starved (72 h) female and starved male Tenebrio molitor fed on fecal pellets from infected- than from control rats; compared to fecal pellets from controls rats, fed males avoided the infective fecal pellets. Uninfective and(More)
We are working on mapping multi-channel neural spike data, recordedfrom multiple cortical areas ofan owl monkey, to corresponding 3d monkey arm positions. In earlier work on this mapping task, we observed that continuous function approximotors (such as artificial neural networks) have diflculty in jointly estimating 36 arm positions for two distinct(More)
Tribolium castaneum and T. confusum were washed in HPLC-grade methanol, and the methanolic washes were analyzed by UV spectroscopy, reversed phase HPLC, and GC/MS. The methanolic washes from both species contained methyl-1,4-benzoquinone (MBQ) and ethyl-1,4-benzoquinone (EBQ). The amounts of MBQ recovered from the two species were not significantly(More)
This paper presents a powerful and flexible Digital Signal Processing (DSP) architecture based on the Texas Instruments TMS320VC33 DSP and high speed PCI bus. The DSP board provides a convenient, flexible means to test signal processing algorithms in real-time hardware. Algorithms implemented for several research projects include Normalized Least Mean(More)
We reconsider the su 3 link homology theory defined by Khovanov in [9] and generalized by Mackaay and Vaz in [15]. With some slight modifications , we describe the theory as a map from the planar algebra of tangles to a planar algebra of (complexes of) 'cobordisms with seams' (actually, a 'canopo-lis'), making it local in the sense of Bar-Natan's local su 2(More)
— In this paper, we present a design for a wearable DSP system that is capable of processing various neural-to-motor translation algorithms. The system first acquires the neural data through a high speed data bus in order to train and evaluate our prediction models. Then via a widely used protocol, the low-bandwidth output trajectory is wirelessly(More)