1,926 research outputs found
Thermal conductivity of gaseous and liquid hydrogen
Normal and para-hydrogen conductivity measurements at temperatures from 200 to 17 deg K, at densities up to 2.6 times critical density, and at pressures to 15 MN/sq m are made. Using new calorimeter, data are analyzed as functions of density at fixed temperatures and of temperature at fixed densitie
Spontaneous Symmetry Breakdown and Critical Perspectives of Higgs Mechanism
The foundations of the mass generation mechanism of particles are reviewed.
The Spontaneous Symmetry Breaking (SSB) process within the standard model (SM)
and the minimal supersymmetric standard model (MSSM) is used to explore the
present status of the Higgs Mechanism along with the constraints in detecting
the Higgs particles in experiments. The possible explanations and
generalizations for the case that the Higgs particles should not appear or to
couple the Higgs Mechanism (because of their gravitational nature of
interaction) are also iscussed in detail in view of the Higgs field gravity.Comment: 13 pages, no figures. Final version based on original to appear in
the Indian Journal of Physic
Black Hole Solutions and Pressure Terms in Induced Gravity with Higgs Potential
We study the quintessential properties of the Black Hole solutions in a
scalar--tensor theory of gravity with Higgs potential in view of the static and
spherically symmetric line element. In view of our earlier results,
Reissner--Nordstr\"om-like and Schwarzschild Black Hole solutions are derived
with the introduction of a series-expansion method to solve the field equations
without and with Higgs field mass. The physical consequences of the Black Hole
solutions and the solutions obtained in the weak field limit are discussed in
detail by the virtue of the equation-of-state parameter, the scalar-field
excitations and the geodesic motion. The appearance of naked singularities is
also discussed together with the dependence of Black Hole horizons on the field
excitations, which are themselves dependent on pressure terms which effectively
screen the mass terms. A possible connection to flat rotation curves following
the interaction with the scalar field is also presented in the weak field limit
of gravity, together with a discussion of dynamical effects of scalar fields
and pressure terms on mass.Comment: 28 pages, 4 figures, contents and figures modified, major revision,
results are unchanged, published in Classical and Quantum Gravit
Computer programs for thermodynamic and transport properties of hydrogen
Computer program subroutines provide the thermodynamic and transport properties of hydrogen in tabular form. The programs provide 18 combinations of input and output variables. This program is written in FORTRAN 4 for use on the IBM 7044 or CDC 3600 computers
Uniform data system standardizes technical computations and the purchasing of commercially important gases
Integrated tables of pressure, volume, and temperature for the saturated liquid, from the triple point to the critical point of the gases, have been developed. Tables include definition of saturated liquid curve. Values are presented in metric and practical units. Advantages of the new tables are discussed
THE EMPLOYMENT OF DENTAL NURSES
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/66110/1/j.1752-7325.1978.tb03727.x.pd
The Role of Gender in Preparedness and Response Behaviors towards Flood Risk in Serbia
Adverse outcomes from 2014 flooding in Serbia indicated problematic response phase management accentuated by a gender imbalance. For this reason, we investigated the risk perceptions and preparedness of women and men regarding these types of events in Serbia. Face-to-face interviews, administered to 2500 participants, were conducted across 19 of 191 municipalities. In light of the current findings, men seemed to be more confident in their abilities to cope with flooding, perceiving greater individual and household preparedness. By contrast, women displayed a deeper understanding of these events. Perhaps owing to a deeper level of understanding, women demonstrated more household-caring attitudes and behaviors and were more prone to report a willingness to help flood victims at reception centers. Emergency management agencies and land planners should account for these differences in gender awareness and preparedness. Based on these findings, doing so may increase citizen participation and shared responsibility under flood hazard scenarios
ASRDI oxygen technology survey. Volume 5: Density and liquid level measurement instrumentation for the cryogenic fluids oxygen, hydrogen, and nitrogen
Information is presented on instrumentation for density measurement, liquid level measurement, quantity gauging, and phase measurement. Coverage of existing information directly concerned with oxygen was given primary emphasis. A description of the physical principle of measurement for each instrumentation type is included. The basic materials of construction are listed if available from the source document for each instrument discussed. Cleaning requirements, procedures, and verification techniques are included
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