Invariants of genus 2 mutants

Pairs of genus 2 mutant knots can have different Homfly polynomials, for example some 3-string satellites of Conway mutant pairs. We give examples which have different Kauffman 3-variable polynomials, answering a question raised by Dunfield et al in their study of genus 2 mutants. While pairs of genus 2 mutant knots have the same Jones polynomial, given from the Homfly polynomial by setting v=s^2, we give examples whose Homfly polynomials differ when v=s^3. We also give examples which differ in a Vassiliev invariant of degree 7, in contrast to satellites of Conway mutant knots.Comment: 16 pages, 20 figure

Wright & Miller: Federal Practice and Procedure, Civil Procedure

A Review of Federal Practice and Procedure, Civil Procedure Vol. 4 & 5 by Charles Alan Wright and Arthur R. Mille

Mariner 'c' dsif equivalent ground support equipment, volume 1 final report

Mariner C Deep Space Instrumentation Facility /DSIF/ equivalent ground support equipmen

Tuning gastropod locomotion: Modeling the influence of mucus rheology on the cost of crawling

Common gastropods such as snails crawl on a solid substrate by propagating muscular waves of shear stress on a viscoelastic mucus. Producing the mucus accounts for the largest component in the gastropod's energy budget, more than twenty times the amount of mechanical work used in crawling. Using a simple mechanical model, we show that the shear-thinning properties of the mucus favor a decrease in the amount of mucus necessary for crawling, thereby decreasing the overall energetic cost of locomotion.Comment: Corrected typo

Dynamic analysis of a lithium-boiling potassium refractory metal Rankine cycle power system for the Jet Propulsion Laboratory

Lithium-boiling potassium refractory metal Rankine cycle power system heat transfer model

Extraction equipment and sampling technique used in semi-continuous silver-uranium extraction studies

Liquid-liquid aqueous extraction methods for reprocessing metallic fuels have two main disadvantages. First, the process involves many steps such as dissolution in acid; extraction, conversion to a salt, and reduction to the metallic state. Secondly, relatively large volumes of radioactive solutions are obtained. This paper describes small scale, semi-continuous extraction runs for extracting irradiated neodymium from a molten uranium-neodymium alloy using droplets of molten silver at 1250° and 1290°C. Two different silver drop sizes and f\u27low .rates were used. The graphite extractor, silver metering device, and the extract sampling equipment are described. The experimental extraction data obtained are presented. These data were correlated reasonably well with equations developed for multistage batch extractions. The actual neodymium concentrations obtained were compared with equilibrium data to determine extraction efficiencies for the various runs . Extraction efficiencies of 15% to 35% were found, with higher efficiencies resulting when large sized drops were used. In these runs, a considerable amount of neodymium was apparently removed by carbide formation with the container wall prior to the extraction with silver

Ghost Interference with Optical Parametric Amplifier

The 'Ghost' interference experiment is analyzed when the source of entangled photons is a multimode Optical Parametric Amplifier(OPA) whose weak limit is the two-photon Spontaneous Parametric Downconversion(SPDC) beam. The visibility of the double-slit pattern is calculated, taking the finite coincidence time window of the photon counting detectors into account. It is found that the coincidence window and the bandwidth of light reaching the detectors play a crucial role in the loss of visibility on coincidence detection, not only in the 'Ghost' interference experiment but in all experiments involving coincidence detection. The differences between the loss of visibility with two-mode and multimode OPA sources is also discussed. PACS: 42.65.Yj, 42.50.Dv, 42.65.L

A multiple opening/closing net and environmental sensing system for sampling zooplankton

The MOCNESS is based on the Tucker Trawl principle and has nine rectangular nets (1 m × 1.4 m) which are opened and closed sequentially by commands through conducting cable from the surface. Environmental sensors to measure conductivity, temperature, and depth are attached to the net support frame. In addition, sensors to monitor flow past the net and the angle of the net assembly from the vertical, and indicators to record the electrical and mechanical function of the opening/closing mechanism are present...