We extend earlier schemes for merging tree-level matrix elements with parton showers to include also merging with one-loop matrix elements. In this paper we make a first study on how to include one-loop corrections, not only for events with a given jet multiplicity, but simultaneously for several different jet multiplicities. Results are presented for the simplest non-trivial case of hadronic e...

Measurements were made of the flow field structure and the near field parameters of a jet exhausting from a sonic nozzle with a 1.27 cm exit diameter. Compressed air was used for obtaining stagnation pressures up to ~ 5 atmospheres. The jet exhausted vertically from a settling chamber into an acoustically insulated room and through an insulated duct out through the roof. Measurements were made ...

We have discovered an X-ray jet due to material ejected from the black hole X-ray transient XTE J1550–564. The discovery was first reported by Corbel et al. (2002b), and here, we present an analysis of the three Chandra observations made between 2000 June and 2000 September. For these observations, a source is present that moves in an eastward direction away from the point source associated wit...

using of nanofluids and ducts with corrugated walls are both supposed to enhance heat transfer, by increasing the heat transfer fluid conductivity and the heat transfer area respectively. use of a diverging duct with a jet at inlet section may further increase heat transfer by creating recirculation zones inside the duct. in this work two-dimensional incompressible laminar flow of a nanofluid e...

Article history: Received 12 December 2014 Received in revised form 16 April 2015 Accepted 14 July 2015 Available online 17 July 2015 Editor: D.F. Geesaman Measurements of the centrality and rapidity dependence of inclusive jet production in √sNN = 5.02 TeV proton–lead (p + Pb) collisions and the jet cross-section in √s = 2.76 TeV proton–proton collisions are presented. These quantities are mea...

The high energy experiments of the next ten years are hadron colliders operating at the multi– TeV scale. Because of the high center–of–mass energies at the Tevatron and the LHC, the final states will look very complex. One may say that we are entering the decade of multi–particle/jet physics. The expected jet rates at the LHC are huge. A leading order analysis is not adequate to make a detaile...

due to the importance of weed control and the limitations of mechanical methods in some places, in this research the water jet cutting for weed control was investigated. the cutting tests were performed on camel thorn weed in shahid bahonar university of kerman. the water jet pressure of 90 bars was achieved with the aid of a suitable pump. the cutting time was studied in a completely randomize...

BACKGROUND Percutaneous access to the jejunum is an important approach if gastrostomy feeding is not possible. OBJECTIVE To analyze success, short- and long-term complications (STCs, LTCs) in patients with percutaneous endoscopic jejunostomy (PEJ) and jejunal access through percutaneous endoscopic gastrostomy (Jet-PEG). METHODS A retrospective analysis of endoscopically placed PEJs and Jet-...

The effect of a combined system of the bed suction and jet injection as a pier-scour countermeasure on the turbulent flow field is studied in a laboratory flume using an Acoustic Doppler Velocimeter (ADV). The three components of the velocities in the vertical symmetry plane in the equilibrium scour hole in front and rear of the pier under 3-jet injections and bed suction rate Qs/Q0 = 2%located...

In order to avoid or predict cavitation erosion, it is necessary to know resistance of materials against to cavitation impacts. The cavitation impacts, which are larger than certain threshold level, only affect cavitation erosion of materials. In the present paper, existence of the threshold level was revealed experimentally. The threshold level of material is a new parameter to predict the cav...