To study the influence of different mix proportions on fresh properties wet shotcrete, rheological and air content shotcrete with admixtures before pumping were measured. In addition, pressure drop along pipeline build-up thickness studied, relationship between pumpability sprayability was discussed. This paper attempts to reveal mechanism fluidity by means pictures. The results show that free ...

This study examines the effect of pumping, hydrogeology, and pesticide characteristics on pesticide concentrations in production wells using a reactive transport model in two conceptual hydrogeologic systems; a layered aquifer with and without a stream present. The pumping rate can significantly affect the pesticide breakthrough time and maximum concentration at the well. The effect of the pump...

The substances of grapes that form the characteristic taste and aroma profile white fortified wine Madeira type were described. use enzyme preparations pectolytic cellulosolytic action Vinozym FCE G Celoviridine Gx20 to intensify extraction phenolic, nitrogen-containing aromatic was proposed. In order deeply oxidize material at stage modernization, heating 65 ° C in a chamber with continuous pu...

The thermally driven circulation between the European Alps and the Alpine foreland—named Alpine pumping—occurs regularly under clear and calm weather conditions. While previous studies focused on the impact of Alpine pumping on moist convection and transport of air pollutants, this study was motivated by its ventilation effect for Munich, located about 50 km north of the Alps in undulating and ...

We have developed and demonstrated both Ytterbium-doped and Erbium-doped, diode-pumped and seeded, fiber amplifiers at 1064 and 1570 nm, respectively. By pulse pumping a one-stage Erbium amplifier, we have shown greater than 20 W peak output power and high wall-plug efficiency. Our pulse-pumping approach improves energy efficiency up to 80% (at 1 kHz PRF) over the identical CW pumping scheme wh...

Actuation schemes exist that permit the joint manage ment of air and fuel ow into the cylinders of a spark ignition engine With the exception of drive by wire systems to date the transient control aspects of these schemes collectively refered to here as secondary cylin der air ow actuators has not received any attention from the control community This paper takes a rst step in the analysis of t...