A hybrid computer program for rapidly solving flowing or static chemical kinetic problems involving many chemical species

A hybrid chemical kinetic computer program was assembled which provides a rapid solution to problems involving flowing or static, chemically reacting, gas mixtures. The computer program uses existing subroutines for problem setup, initialization, and preliminary calculations and incorporates a stiff ordinary differential equation solution technique. A number of check cases were recomputed with the hybrid program and the results were almost identical to those previously obtained. The computational time saving was demonstrated with a propane-oxygen-argon shock tube combustion problem involving 31 chemical species and 64 reactions. Information is presented to enable potential users to prepare an input data deck for the calculation of a problem

Alien Registration- Mclain, Frank S. (Presque Isle, Aroostook County)

https://digitalmaine.com/alien_docs/33831/thumbnail.jp

One faith, one body : a study in racial reconciliation

https://place.asburyseminary.edu/ecommonsatsdissertations/2089/thumbnail.jp

Men mentoring women : the impact of male leaders on women entering vocational Christian ministry in the Church of God

https://place.asburyseminary.edu/ecommonsatsdissertations/1318/thumbnail.jp

EXAFS study of nickel tetracarbonyl and nickel clusters in zeolite Y

Adsorption and thermal decomposition of Ni(CO)4 in the cage system of zeolite Y have been studied with EXAFS, electron microscopy and IR spectroscopy , Ni(CO)4 is adsorbed as an intact molecule in both cation - free zeolite Y and NaY. Symmetry changes of the molecule in NaY are assigned to the formation of Na—OC-IMi bridges. Thermal treatment of the Ni(CO)4/NaY adduct leads to loss of CO concomitant with the formation of a binodal Ni phase. A major part of the forms clusters with diameter between 0.5 and about 1.5 nm, in addition to larger crystallites (5-30 nm), sticking at the outer surface of the zeolite matrix., The Ni-Ni scattering amplitude indicates increasing average particle size with increasing temperature

The seasonal upwelling cycle along the eastern boundary of the North Atlantic

Merchant ship observations were summarized for one-degree squares along the eastern shore of the Atlantic between 7° and 44°N; monthly averages were prepared for several properties including sea surface temperature and its difference from mid-ocean values, offshore Ekman transport, and surface current...

Effect Of Gap Size On Performance Of Metal-plated Joints In Compression

Metal-plate splice joints with gaps between butting pieces of 2 x 4 lumber were tested in compression to evaluate the effect of gap size on joint serviceability performance. The current design methodology for compression splice joints was also evaluated. Specimens representing floor and roof truss compression joints, with 16- and 20-gauge plates of staggered and aligned tooth configurations, were tested for each of two gap sizes.Generally, 20-gauge and 16-gauge plates on joints with 1/8 in. nominal maximum gaps buckled under compression loads while 16-gauge plates on joints with nominal 1/16 in. maximum gaps did not buckle before the gap closed. Gap closure with the latter joints was due principally to slip between the teeth nearest the splice and the wood. Joints with 16-gauge plates generally outperformed those with 20-gauge plates, based on the serviceability performance indicators of the test compression splice joints. Furthermore, gap size had less of an influence on joints with 16-gauge plates than on joints with 20-gauge plates.The current practice of sizing plates for compression splices to withstand one-half of the calculated chord force could not be physically confirmed using joint serviceability criteria. The test results indicated that basing allowable plate ratings on a surface-area basis derived from tension tests is misleading