pressurized irrigation technologies of course have the potential to raise the productivity of land and water; but, these technologies could not popularize among the smallholders who own millions of farms worldwide. in developing pressurized irrigation technologies, particularly for field crops irrigation, researchers and manufacturers have developed more specialized and expensive technologies w...

[1] A Rossby wave breaking identification method is presented which searches for overturning of absolute vorticity contours on pressure surfaces. The results are compared to those from an analysis of isentropic potential vorticity, and it is demonstrated that both yield similar wave breaking distributions. As absolute vorticity is easily obtained from most model output, we present wave breaking...

How to effectively transfer and exert a pressure on drills in lateral drilling, and to raise the efficiency of rock-breaking and rate of penetration in a bid, is the key technology to improve the quality, speed and economic benefits of lateral drilling. Therefore, based on high pressure jet of 16-hole and 7-hole nozzles, which are suitable for lateral drilling in oilfield at the present stage, ...

In this talk we survey the SSC and LHC signals and backgrounds for the physics of electroweak symmetry breaking. We study the process pp → WWX and compute the rate for the “gold-plated” signals W → lν and Z → ll (l = e, μ) for a wide variety of models. We use a forward jet tag and central jet veto to suppress the standard-model backgrounds. In this way we estimate the SSC and LHC sensitivities ...

The development of a particular wintertime atmospheric circulation regime over the North Atlantic, comprising a northward shift of the North Atlantic eddy-driven jet stream and an associated strong and persistent ridge in the subtropics, is investigated. Several different methods of analysis are combined to describe the temporal evolution of the events and relate it to shifts in the phase of th...

This paper reports an observational analysis on droplet formation from a capillary-jet driven by centrifugal-gravity in a CDSD (Centrifuge-based droplet shooting device), and controlled synthesis of microbeads by instantaneous solidification of a sodium alginate solution jet breaking into drops owing to hydrodynamic instability. Our analysis may deepen understanding of micro capillary-jet and e...

Isentropic mixing is an important process for the distribution of chemical constituents in the mid-to-high latitudes. A new framework is introduced to quantify both symmetric and asymmetric isentropic mixing in a modified Lagrangian coordinate. The framework is applied to quantify the mixing associated with the two types of Rossby wave breaking (i.e. cyclonic and anticyclonic) in two sets of id...

Isentropic transport and mixing are important processes for the distribution of chemical constituents in the mid-to-high latitudes. A new framework is introduced to quantify both isentropic transport and isentropic mixing in a modified Lagrangian coordinate. The framework is applied to quantify the transport and mixing associated with the two types of Rossby wave breaking (i.e. cyclonic and ant...

We study the gold-plated purely leptonic signal and background rates at the LHC for the ZZ, W + W − , W ± Z and W ± W ± final states associated with strongly interacting electroweak symmetry breaking. We work at an energy of √ s = 14 TeV, and develop a combination of back-to-back leptonic, central-jet-vetoing and forward-jet-tagging cuts that suppresses the Standard-Model backgrounds. We find t...

Plunging wave breaking is of great importance to ship hydrodynamics, including strong turbulence with large amounts of air entrainment, bubbles, droplets, jets, and spray. Previous experimental fluid dynamics (EFD) and computational fluid dynamics (CFD) studies on plunging wave breaking are mainly focused on the global structures of the wave breaking, such as wave elevation, jet, air cavity, an...