6,889 research outputs found
Mariculture in California
Mariculture in California is currently under development
by several private concerns, universities, and by the
California Department of Fish and Game. At present, most
of these efforts classify as research and development with
a few in the pilot production phase.
The Department of Fish and Game is presently conducting
research in the culture of mortality resistant strains of
Pacific oyster, Crassostrea virginica, the red abalone,
Haliotis rufescens, and the spot prawn, Pandalus platyceros. (18pp.
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Ecology of a reef forming serpulid, Hydroides norvegica : final report
Experimental results reported herein were obtained on colonies of serpulid worms collected from a filter box (Fig. 1) through which water was pumped at a rate of about 1,000 gallons per day. The filter box was located within and the water was drawn from the cooling water intake system of the Central Power and Light Company plant located between the Port of Corpus Christi and Nueces Bay, Texas. Although at least three species of serpulids were identified from this locality during the spring of 1969, all specimens collected for experimentation included only Hydroides norvegica. Salinity of the water in the Port of Corpus Christi ranged from 29 to 35 ppt through the sampling period.Marine Scienc
Bound States for Magic State Distillation in Fault-Tolerant Quantum Computation
Magic state distillation is an important primitive in fault-tolerant quantum
computation. The magic states are pure non-stabilizer states which can be
distilled from certain mixed non-stabilizer states via Clifford group
operations alone. Because of the Gottesman-Knill theorem, mixtures of Pauli
eigenstates are not expected to be magic state distillable, but it has been an
open question whether all mixed states outside this set may be distilled. In
this Letter we show that, when resources are finitely limited, non-distillable
states exist outside the stabilizer octahedron. In analogy with the bound
entangled states, which arise in entanglement theory, we call such states bound
states for magic state distillation.Comment: Published version. This paper builds on a theorem proven in "On the
Structure of Protocols for Magic State Distillation", arXiv:0908.0838. These
two papers jointly form the content of a talk entitled "Neither Magical nor
Classical?", which was presented at TQC 2009, Waterlo
Ion Beams in Multi-Species Plasma
Argon and xenon ion velocity distribution functions are measured in Ar-He, Ar-Xe, and Xe-He expanding helicon plasmas to determine if ion beam velocity is enhanced by the presence of lighter ions. Contrary to observations in mixed gas sheath experiments, we find that adding a lighter ion does not increase the ion beam speed. The predominant effect is a reduction of ion beam velocity consistent with increased drag arising from increased gas pressure under all conditions: constant total gas pressure, equal plasma densities of different ions, and very different plasma densities of different ions. These results suggest that the physics responsible for the acceleration of multiple ion species in simple sheaths is not responsible for the ion acceleration observed in expanding helicon plasmas
Effects of Isolated Hip Abductor Fatigue on Frontal Plane Knee Mechanics
Purpose: Anterior cruciate ligament injuries and patellofemoral pain syndrome are both common and significant injuries to the knee that have been associated with hip weakness. Prospective studies have linked the risk of experiencing either injury to alterations in the frontal plane knee angle and moment during activity. These components of knee mechanics are theorized to be affected by hip abductor weakness. The purpose of this study was to identify the effects of isolated hip abductor fatigue-induced weakness on lower extremity kinematics and kinetics in recreationally active women
Diablo Canyon Power Plant site ecological study Quarterly Report No. 2; October 1 - December 31, 1973
During the period October 1 - December 31, 1973, Fall surveys of permanent subtidal stations were completed with one station being surveyed. We were unable to locate 3
subtidal stations.
Intertidal studies were initiated in November. A total of 12
random stations was surveyed.
Interviews were conducted with commercial abalone fishermen
working between Pt. Buchon to Pecho Rock. We continued to
monitor the sea otter herd foraging between Pt. Buchon and
Lion Rock.
Progress was achieved in the abalone temperature tolerance
studies when a successful spawning occurred. (20pp.
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