نتایج جستجو برای: jet injection angle
تعداد نتایج: 320441 فیلتر نتایج به سال:
We present new multi-frequency EVN, MERLIN and VLA observations of the radio source 3C 264, sensitive to linear scales ranging from the parsec to several kiloparsecs. The observations confirm the existence of regions with different properties in the first kiloparsec of the jet. The most remarkable feature is the transition between a well collimated narrow jet at distances from the core below 80...
graphic deterioration, in the patient and others affected by aerosols of contaminated water in other factories2 3 no radiographic changes were evident after several years' exposure, and no functional abnormalities persisted when away from work. Furthermore, the symptoms were prominent in the early part of the week, improving while continuing at work, but recurring on return to work after an abs...
In this talk I review the current status of jet formation in direct numerical simulations of black-hole accretion disks and magnetospheres. I address the following critical questions: What constitutes the jet? What is the launching mechanism? Where is the launching point of the jet? What is the Lorentz factor? What is the opening angle? How is the jet collimated? Just as importantly, I also dis...
Objective: Fear of dental procedures is a common barrier to effective care. A promising technique overcome anxiety needle-free jet injection, which involves delivering local anaesthetic as high-speed capable penetrating the oral mucosa without needle. Previous efforts have used loud, uncontrolled injectors designed for transdermal delivery that failed achieve significant uptake in practice. Met...
— We examine the Swift/X-ray Telescope (XRT) light curves from the first ∼ 150 gamma-ray burst (GRB) afterglows. Although we expected to find jet breaks at typical times of 1-2 days after the GRB, we find that these appear to be extremely rare. Typical light curves have a break in the slope at about 10 4 s, followed by a single power-law decay whose slope is much too shallow to be consistent wi...
A general formalism is developed for calculating the luminosity function and the expected number N of observed GRBs above a peak photon flux S for an arbitrary GRB jet structure. This formalism directly provides the true GRB rate for any jet model, instead of first calculating the GRB rate assuming isotropic emission and then introducing a ‘correction factor’ to account for effects of the GRB j...
We present results on the compact steep-spectrum quasar 3C 48 from observations with the Very Long Baseline Array (VLBA), the Multi-Element Radio Linked Interferometer Network (MERLIN) and the European Very long baseline interferometry (VLBI) Network (EVN) at multiple radio frequencies. In the 1.5-GHz VLBI images, the radio jet is characterized by a series of bright knots. The active nucleus is...
This paper deals with the optimization of a synthetic jet actuator parameters in the control flow around the NACA0015 airfoil at two angles of attack: 13° (i.e. the stall angle of NACA0015) and 16° (i.e. the post stall angle of NACA0015) to maximize the aerodynamic performance of the airfoil. Synthetic jet actuator is a zero mass flux-active flow control device that alternately injects and remo...
Differential cross sections for dijet photoproduction in association with a leading neutron using the reaction e+ + p → e+ + n + jet + jet +Xr have been measured with the ZEUS detector at HERA using an integrated luminosity of 6.4 pb−1. The fraction of dijet events with a leading neutron in the final state was studied as a function of the jet kinematic variables. The cross sections were measure...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید