4,068 research outputs found
New electrolyte may increase life of polarographic oxygen sensors
Electrolyte increases life on oxygen sensors in a polarograph used for measuring the partial pressure of oxygen in a gas mixture. It consists of a solution of lithium chloride, dimethyl acetamide and water
Device separates hydrogen from solution in water at ambient temperatures
Separator decreases the partial pressure of hydrogen gas dissolved in the water produced by fuel cells containing an alkaline electrolyte. The unit eliminates the hazards associated with the release of hydrogen from water solution when the hydrostatic pressure is rapidly decreased
SO(10) and Large nu_mu - nu_tau Mixing
A general approach to understanding the large mixing seen in atmospheric
neutrinos is explained, as well as a highly predictive SO(10) model which
implements this approach. It is also seen how bimaximal mixing naturally arises
in this scheme. (Talk presented at NNN99, SUNY Stony Brook, Sept. 22-26, 1999)Comment: 10 pages, LaTe
Electrolytic silver ion cell sterilizes water supply
Electrolytic water sterilizer controls microbial contamination in manned spacecraft. Individual sterilizer cells are self-contained and require no external power or control. The sterilizer generates silver ions which do not impart an unpleasant taste to water
Net Baryon Fluctuations from a Crossover Equation of State
We have constructed an equation of state which smoothly interpolates between
an excluded volume hadron resonance gas at low energy density to a plasma of
quarks and gluons at high energy density. This crossover equation of state
agrees very well with lattice calculations at both zero and nonzero baryon
chemical potential. We use it to compute the variance, skewness, and kurtosis
of fluctuations of baryon number, and compare to measurements of proton number
fluctuations in central Au-Au collisions as measured by the STAR collaboration
in a beam energy scan at the Relativistic Heavy Ion Collider. The crossover
equation of state can reproduce the data if the fluctuations are frozen out at
temperatures well below than the average chemical freeze-out.Comment: 5 pages, 7 figures. arXiv admin note: substantial text overlap with
arXiv:1506.0340
Matching Excluded Volume Hadron Resonance Gas Models and Perturbative QCD to Lattice Calculations
We match three hadronic equations of state at low energy densities to a
perturbatively computed equation of state of quarks and gluons at high energy
densities. One of them includes all known hadrons treated as point particles,
which approximates attractive interactions among hadrons. The other two
include, in addition, repulsive interactions in the form of excluded volumes
occupied by the hadrons. A switching function is employed to make the crossover
transition from one phase to another without introducing a thermodynamic phase
transition. A chi-square fit to accurate lattice calculations with temperature
MeV determines the parameters. These parameters quantify the
behavior of the QCD running gauge coupling and the hard core radius of protons
and neutrons, which turns out to be fm. The most physically
reasonable models include the excluded volume effect. Not only do they include
the effects of attractive and repulsive interactions among hadrons, but they
also achieve better agreement with lattice QCD calculations of the equation of
state. The equations of state constructed in this paper do not result in a
phase transition, at least not for the temperatures and baryon chemical
potentials investigated. It remains to be seen how well these equations of
state will represent experimental data on high energy heavy ion collisions when
implemented in hydrodynamic simulations.Comment: 19 pages, 9 figure
Water management system and an electrolytic cell therefor Patent
Description of electrical equipment and system for purification of waste water by producing silver ions for bacterial contro
The roles, needs, and challenges of Arkansas women in agriculture
Participants of the 2005-2007 Arkansas Women in Agriculture conferences were surveyed for this study to identify recent changes in their roles on and off the farm, the factors important to their success, and the problems they face in their businesses. Respondents were broken into two groups—Farm (women owner-operators of farms, ranches, or agribusinesses) and Non-farm (women working in supporting agricultural industries)—for comparisons and responses were also analyzed across years. Farm women most often reported problems keeping good employees each year, while Non-farm women often reported having problems with being respected as a female business person. For Farm women, the factor most often cited as important to success in their business was being able to pass the business on to family; for Non-farm women it was being able to apply their talents and skills. These results suggest that different types of agricultural women hold different attitudes about business and face different challenges. Results across years suggest that successes and problems may change over time. This marks some of the first research on the roles, challenges, and attitudes of Arkansas’ women in agriculture. Based on the results of this research, educational efforts are underway across the state to assist Arkansas’ women in agriculture. However, given the small sample of women surveyed, further research is still needed to fully understand the roles, challenges, and attitudes of Arkansas’ women in agriculture
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