Many arid alluvial-fan terraces downwind from eolian sand sources exhibit an abrupt increase in Av-horizon thickness and sand content below a critical elevation which varies from fan to fan. Above this elevation, sand accumulates locally and is not transported across the fan. Below this elevation both coarse and fine eolian sand from nearby playa and channel sources is readily transported acros...

A topological drawing of a graph is fan-planar if for each edge e the edges crossing e have a common endpoint on the same side of e, and a fan-planar graph is a graph admitting such a drawing. Equivalently, this can be formulated by two forbidden patterns, one of which is the configuration where e is crossed by two independent edges and the other where e is crossed by incident edges with the co...

Adder is an important functional unit of a computer. This paper provides design of a low delay threshold adder (LDTA) using fan-in bounded gates in nanotechnology. An n-bit LDTA with a fan-in bound of M + 1 has delay of O(log(N/M)) and hardware complexity of O(N log(N/M)). This design strategy allows a trade-off between the fan-in bound, delay and the complexity.

It is shown that in a standard discrete neural network model with small fan-in, tolerance to random malicious faults can be achieved with a log-linear increase in the number of neurons and a constant factor increase in parallel time, provided fan-in can increase arbitrarily. A similar result is obtained for a nonstandard but closely related model with no restriction on fan-in.

Feature indexing techniques are promising for object recognition since they can quickly reduce the set of possible matches for a set of image features. This work exploits another property of such techniques. They have inherently parallel structure and connectionist network formulations are easy to develop. Once indexing has been performed, a voting scheme such as geometric hashing [10] can be u...

I consider a topographic projection between two neuronal layers with different densities of neurons. Given the number of output neurons connected to each input neuron (divergence or fan-out) and the number of input neurons synapsing on each output neuron (convergence or fan-in) I determine the widths of axonal and dendritic arbors which minimize the total volume ofaxons and dendrites. My analyt...

Backpropagation learning algorithms typically collapse the network’s structure into a single vector of weight parameters to be optimized. We suggest that their performance may be improved by utilizing the structural information instead of discarding it, and introduce a framework for “tempering” each weight accordingly. In the tempering model, activation and error signals are treated as approxim...

OBJECTIVE To examine the relation between room ventilation during sleep and risk of sudden infant death syndrome (SIDS). DESIGN Population-based case-control study. SETTING Eleven California counties. PARTICIPANTS Mothers of 185 infants with a confirmed SIDS diagnosis and 312 randomly selected infants matched on county of residence, maternal race/ethnicity, and age. Intervention Fan use a...

The present paper introduces the new interconnection network of the BOPS ManArray family of available core products. To form a ManArray network, the processing elements are completely connected within clusters and communicate with members of only two other clusters thereby reducing signal fan-out and wiring density. With this simple network, single-step communications between a hypercube and it...