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Analysis of the human electroencephalogram with methods from nonlinear dynamics

Description: We apply several different methods from nonlinear dynamical systems to the analysis of the degree of temporal disorder in data from human EEG. Among these are methods of geometrical reconstruction, dimensional complexity, mutual information content, and two different approaches for estimating Lyapunov characteristic exponents. We show how the naive interpretation of numerical results can lead to a considerable underestimation of the dimensional complexity. This is true even when the errors from… more
Date: September 8, 1986
Creator: Mayer-Kress, G. & Holzfuss, J.
Item Type: Refine your search to only Article
open access

Background radiation in the SLC ir from collimators and tune-up dumps in the ARCS

Description: There are various beam intercepting devices between the interaction point and the beam dumps of the SLC. Of these, the adjustable collimators, a fixed collimator, and the tune-up dumps are expected to intercept enough of the beam to warrant calculating the fluxes inside the interaction hall from them. The fluences of neutrons and photons in the interaction hall from these sources. Whether the beam has passed the interaction point or not is considered important in choosing a source term, primari… more
Date: July 8, 1986
Creator: Jenkins, T.M.
Item Type: Refine your search to only Report
open access

Bottom Quark Production At The SSC (Superconducting Super Collider)

Description: We present predictions for the rapidity and transverse momentum distributions for inclusive production of bottom quarks at SSC energies, pp ..-->.. bX. Our computations are based on the simplest, lowest-order QCD mechanisms. To estimate uncertainties, we use three different choices for structure functions, G(x,Q), as well as different choices for the evolution scale Q.
Date: December 8, 1986
Creator: Berger, Edmond L.; Collins, John C. & Soper, Davison E.
Item Type: Refine your search to only Article
open access

Electrical conductivity and equation of state of liquid nitrogen, oxygen, benzene, and 1-butene shocked to 60 GPa

Description: Measurements are reported for the electrical conductivity of liquid nitrogen (N/sub 2/), oxygen (O/sub 2/) and benzene (C/sub 6/H/sub 6/), and Hugoniot equation of state of liquid 1-butene (C/sub 4/H/sub 8/) under shock compressed conditions. The conductivity data span 7 x 10/sup -4/ to 7 x 10/sup 1/ ..cap omega../sup -1/cm/sup -1/ over a dynamic pressure range 18.1 to 61.5 GPa and are discussed in terms of amorphous semiconduction models which include such transport phenomena as hopping, perco… more
Date: October 8, 1986
Creator: Hamilton, D. C.
Item Type: Refine your search to only Report
open access

Final focus nomenclature

Description: The formal names and common names for all devices in the final focus system of the SLC are listed. The formal names consist of a device type designator, microprocessor designator, and a four-digit unit number. (LEW)
Date: August 8, 1986
Creator: Erickson, R.
Item Type: Refine your search to only Report
open access

Intense microwave pulse propagation through gas breakdown plasmas in a waveguide

Description: High-power microwave pulse-compression techniques are used to generate 2.856 GHz pulses which are propagated in a TE/sub 10/ mode through a gas filled section of waveguide, where the pulses interact with self-generated gas-breakdown plasmas. Pulse envelopes transmitted through the plasmas, with duration varying from 2 ns to greater than 1 ..mu..s, and peak powers of a few kW to nearly 100 MW, are measured as a function of incident pulse and gas pressure for air, nitrogen, and helium. In additio… more
Date: October 8, 1986
Creator: Byrne, D. P.
Item Type: Refine your search to only Report
open access

Subcycle-specific emergency cooling limits

Description: Assembly power limits are prescribed for each reactor charge so that the Emergency Cooling System (ECS) will prevent core damage from exceeding specified damage limits during a postulated loss-of-coolant (LOCA) or loss-of-pumping (LOPA) accident. Generic assembly power limits which include a 10% uncertainty factor have been determined for the Mark 16B-31 charge. However, future power limits will not be based on the values, because a new damage model is being developed. These limits can be deter… more
Date: December 8, 1986
Creator: Giess, M J
Item Type: Refine your search to only Report
open access

Turbulent energy generated by accelerations and shocks

Description: The turbulent energy generated at the interface between two fluids undergoing a constant acceleration or a shock is calculated. Assuming linear density profiles in the mixed region we find E/sub turbulent//E/sub directed/ = 2.3A/sup 2/% (constant acceleration) and 9.3A/sup 2/% (shock), where A is the Atwood number. Diffusion models predict somewhat less turbulent energy and a density profile with a tail extending into the lower density fluid. Eddy sizes are approximately 27% (constant accelerat… more
Date: October 8, 1986
Creator: Mikaelian, Karnig O.
Item Type: Refine your search to only Article
open access

Vibrational soliton: an experimental overview

Description: To date the most convincing evidence of vibrational solitons in biopolymers has been found in two very disparate systems: Davydov-like excitations in hydrogen-bonded linear chains (acetanilide and N-methylacetamide) which are not biopolymers but plausible structural paradigms for biopolymers, and longitudinal accoustic modes of possibly nonlinear character in biologically viable DNA. 17 refs., 4 figs.
Date: March 8, 1986
Creator: Bigio, I.J.
Item Type: Refine your search to only Article
open access

Workshop on short-term health effects of reactor accidents: Chernobyl

Description: The high-dose early-effects research that has been continued has been done in the context of infrequent accidents with large radiation sources and the use of bone marrow transfusions for treating malignancies, especially leukemia. It thus seemed appropriate to bring together those who have done research on and have had experience with massive whole-body radiation. The objectives were to review what is known about the acute effects of whole-body irradiation, to review the current knowledge of th… more
Date: August 8, 1986
Item Type: Refine your search to only Article
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