Recently Hardcastle & Worrall (2000) analyzed 63 FRII radio galaxies imbedded in the X-ray radiating gas in galaxy clusters and concluded, that pressures inside its lobes seem to be a factor of a few lower than in the surrounding gas. One of explanations of the existing ‘blown up’ radio lobes is the existence of invisible internal pressure component due to energetic cosmic ray nuclei (protons)....

In the absence of a light Higgs boson, the mechanism of electroweak symmetry breaking will be best studied in processes of vector boson scattering at high mass. Various models predict resonances in this channel. Scalar and vector resonances have been investigated in the WW , WZ and ZZ channels. The ability of ATLAS to measure the di-boson crosssection over a range of centre-of-mass energies has...

With the deepening of drilling depth, difficulty engineering increases gradually due to complex geological conditions. The traditional mechanical method shows problems high energy consumption, low efficiency, long cycle and cost. Because characteristics rock, abrasiveness rock causes great wear bit, which becomes an important factor affecting rate. High voltage electric pulse (Abbreviated as HV...

Coalbed methane extraction promotes energy exploitation and alleviates the greenhouse effect. This study aimed to analyze technical potential of a high-pressure gas–liquid two-phase jet in increasing coalbed permeability promoting extraction. A well-designed experimental setup was used investigate erosion characteristics jet. Through shock pressure monitoring tests jet, effects pump pressure, m...

We discuss an optimal R-parity breaking SUSY solution to the Rb excess as well as the ALEPH 4-jet anomaly. The latter arises from the pair production of stop via chargino decay at LEP1.5, followed by its R–violating decay into a light quark pair. The model satisfies top quark and Z–boson decay constraints along with gaugino mass unification. CERN-TH/96-203 August, 1996 [email protected] dpro...

In Vietnam, the solution of designing and constructing deep foundation pits with geology sandy or clayey sand is very difficult, especially in case soil mix mud. some pits, unreasonable treatment causes bottom plug pit to be pushed up not pump a dried. Solving those problems, this article introduces particular study, sealing for no14 Yen Xa drainage works Jet grouted hydraulic barriers. To trea...

an experimental study has been performed to investigate the flow physics of an under-expanded axisymmetric supersonic jet exhausting transversely from a flat plate into a subsonic compressible cross flow. the goal was to study the effects of boundary layer thickness ratio (δ/d) and the jet to free stream dynamic pressure ratio (j) on surface pressure. the resulting measurements distinctly show ...

An SU(3) symmetric model with high predictivity for octet meson (π,K) quark fragmentation functions with a simple approach to SU(3) symmetry breaking (due to the relatively heavy strange quarks) is extended to the singlet sector, with some reasonable assumptions, in order to study η and η fragmentation. Due to the presence of SU(3) symmetry, fits to the π and K data help to constrain the fragme...