Erratum for “Grout Hole Orientation—Mathematical Solution”

Comparison of Chemical Grout Properties

Chemical grout use began seriously some thirty years ago with the use of only a few types; silicates, acrylamide, epoxy, and some fatty acid derivates. Since then, the kinds of grout have proliferated with some of the originals still there, others dropping out entirely, and still others changing in type. This paper is about the current uses of chemical grouts, the economics of product use, and ...

Erratum

Energy-Momentum Complex for a Stringy Black Hole Solution

In our paper we compute the energy distribution of a magnetic stringy black hole solution in the Weinberg prescription. The metric under consideration describes the dual solution in the string frame that is known as the magnetic stringy black hole solution. The metric is obtained by multiplying the electric metric in the Einstein frame by a factor e−2Φ. The energy distribution depends on the ma...

Solution-processable dendric triphenylamine nonamers as hole-transporting and hole-injection materials for organic light-emitt

We demonstrated two solution-processable triphenylamine dendric nonamers: the N-atom-centered nonamer (TPA9-1) and the phenyl-centered nonamer (TPA9-2). The materials were found to have high glass transition temperature (Tg) up to almost 200°C. The fractional difference of the central units of the molecular structures caused different adaptability due to the different ionization potentials (Ip)...

Evolution of technetium speciation in reducing grout.

Cementitious waste forms (CWFs) are an important component of the strategy to stabilize nuclear waste resulting from plutonium production by the U. S. Department of Energy. Technetium (99Tc) is an abundant fission product of particular concern in CWFs because of the high solubility and mobility of Tc(VII), pertechnetate (TcO4-), the stable form of technetium in aerobic environments. CWFs can mo...