منابع مشابه
I Intestinal Gas - Its Syndromes
Not only the ancient man was tormented by the whirlwinds in his bowel but even today belching, bloating and flatulence remain all too common to the modern man. Although the syndromes related to intestinal gas were recognised since time of Hippocrates, the treatment of these syndromes had been far from satisfactory (I). The advent of space exploration, and with it the recognition, that gaseous d...
متن کاملGas Flow Calculations and Measurements for a Gas Stopping Cell
Along with several other nuclear physics laboratories around the world, the NSCL has undertaken the challenge of stopping a radioactive ion beam in order to make low-energy beams for experiments that require nearly thermal beam energies (precision mass measurements, laser spectroscopy, etc.). As part of the LEBIT (Low Energy Beam and Ion Trapping) Project at the NSCL, a gas stopping station is ...
متن کاملEvaluation of exhalation valves.
Certification tests currently employed by some industrialized nations to certify respirators require that when challenged with air flow at a constant suction head of 25 mmH2O, the leakage into the facepiece from the exhalation valve(s) should not exceed 30 ml min(-1). However, the test alone might not reflect the leakage rate under different levels of vacuum. To study the characteristics of lea...
متن کاملDynamics of soluble gas exchange in the airways. III. Single-exhalation breathing maneuver.
The exchange characteristics of a highly soluble gas with the pulmonary airways during a single-exhalation maneuver were analyzed using a mathematical model previously described by our group (M. E. Tsu et al. Ann. Biomed. Eng. 16: 547-571, 1988). The model integrates the simultaneous exchange of water, heat, and a soluble gas with the pulmonary airways. The purpose of this paper is to provide e...
متن کاملAn Ab initio and chemical shielding tensors calculations for Nucleotide 5’-Monophosphates in the Gas phase
Structural and magnetic properties of purine and pyrimidine nucleotides (CMP, UMP, dTMP, AMP, GMP, IMP) were studied at different levels of ab initio molecular orbital theory. These calculations were performed at the hartree-fock level and density functional B3LYP methods. Geometries were fully optimized by following Cs symmetry restrictions. The standard 6-31G** basis set which includes polari...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applications of Mathematics
سال: 1981
ISSN: 0862-7940,1572-9109
DOI: 10.21136/am.1981.103892