Date Dec. 22, 1994The invention relates to a method for the measurement of the molar mass of a gas or gas mixture and an apparatus for the performance of the method. The gas or gas mixture to be investigated is passed through at least one holder, on which at least one sonic or ...
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where Ma is the average mass per atom, E is Young’s modulus, ρ is the density, M is the molar mass, n is the atomic number density per unit volume, kB is Boltzmann’s constant, NA is Avogadro’s number, respectively. Based on the two theoretical model, the calculated minimum therma...
in which ∆P=Pin−Poutis the pressure drop along the nanochannel with a cross-section areaA,Rthe gas constant,Tthe temperature, andMthe molar mass of the gas molecule. Equation (1) is obtained based on the assumption of complete diffuse reflections after gas-wall collisions. The transmiss...
semiconductors, involves supplying an oxidant or an etchant, and a source gas into vacuum chamber to grow carbon nanotubes on a substrate in an oxidant or etchant atmosphere: US2007014714-A1[P] Bahamon D, Vega LF (2016) Systematic evaluation of materials for post-combustion CO2 capture in a...
PEM electrolysis is considered a splendid method for high-purity hydrogen production in the future industrial application, due to its high current density, greater energy efficiency, smaller gas crossover, wider operating temperatures (20–80°C) [12], smaller mass-volume characteristic, more ...
The invention relates to a method for measuring the pressure and/or molar mass of a gas in a housing, the measure being carried out via an acoustic sensor, said acoustic sensor at least one transducer (), an electric system () connected to the transducer () and a coupling layer () for...
The mesh sizes (ξ) of the gels were evaluated according to the following formula (the affine network model) [26]:ξ=(G'NART)−13where G′ is the storage modulus of the swollen gel, NA is the Avogadro constant, R is the molar gas constant, and T is the temperature. Cross-linking...
based on having imaged parts of the lowermost mantle and CMB region. A local LSL is, in any case, expected to be dynamically unstable in the sense that it would either spread globally to cover the core or become entrained with upwelling mantle material. While topographic variations on the man...
Positron emission tomography (PET) constitutes a functional imaging technique that is harnessed to probe biological processes in vivo. PET imaging has been used to diagnose and monitor the progression of diseases, as well as to facilitate drug development efforts at both preclinical and clinical stages...