Resource Type
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Examination of glass-silicon and glass-glass bonding techniques for microfluidic systems
We report here on the results of experiments concerning particular bonding processes potentially useful for ultimate miniaturization of microfluidic systems. Direct anodic bonding of continuous thin pyrex glass of 250 {mu}m thickness to silicon substrates gives multiple, large voids in the glass. Etchback of thick glass of 1200 {mu}m thickness bonded to silicon substrates gives thin continuous glass layers of 189 {mu}m thickness without voids over areas of 5 cm {times} 12 cm. Glass was also successfully bonded to glass by thermal bonding at 800{degrees}C over a 5 cm {times} 7 cm area. Anticipated applications include microfabricated DNA sequencing, flow injection analysis, and liquid and gas chromatography microinstruments.
Date:
October 23, 1995
Creator:
Raley, N. F.; Davidson, J. C. & Balch, J. W.
System:
The UNT Digital Library
Resummation of gluon radiation and the top quark production cross section
A calculation of the total cross section for top quark production in hadron-hadron collisions is presented based on an all-orders perturbative resummation of initial-state gluon radiative contributions to the basic quantum chromodynamics subprocesses. For p{anti p} collisions at center-of-mass energy {radical}s = 1.8 TeV and a top mass of 175 GeV, the authors obtain {sigma}(t{anti t}) = 5.52 {sub {minus}0.45}{sup +0.07} pb. Cross sections are provided as a function of top mass at CERN LHC energies.
Date:
October 23, 1995
Creator:
Berger, E. L. & Contopanagos, H.
System:
The UNT Digital Library