This paper demonstrates a novel kind of cavity-backed self-quadplexing slot antenna for the S and C-band applications. The proposed consists 4 distinct “U”-shaped slots different lengths produces quad frequency band wireless communication systems. These are excited through separate orthogonal placed microstrip feed lines 50 Ω; generates four operating bands at 3.2 GHz, 4.1 5.8 7.2 GHz. Due to p...

In the present research, we propose use of a novel hydraulic classifier equipped with W-shaped reflector to enhance classification performance. The effects structural dimensions on flow field and its performance were investigated using numerical simulations experiments. results demonstrate that reflection in return feed material back cavity. After this, materials are mixed rising water order av...

A multi-laboratory collaboration is studying the feasibility of building a muon collider, the first phase of which maybe a neutrino factory. The phase space occupied by the muons is very large and needs to be cooled several orders of magnitude for either machine, 100,000 to 1 million for the collider and ten to 100 for the factory. Ionization cooling is the baseline method for muon cooling. Thi...

Minimizing the retarding force on a solid moving in liquid is the canonical problem in the quest for energy saving by friction and drag reduction. For an ideal object that cannot sustain any shear stress on its surface, theory predicts that drag force will fall to zero as its speed becomes large. However, experimental verification of this prediction has been challenging. We report the construct...

this paper is a computational study of the behavior of aerodynamics  characteristics of an airfoil with blunt trailing edge and  studies the effects aerodynamic performance caused by modifications made to the trailing edge. blunt trailing edge airfoils are of interest in the engineering of large wind turbine blades because they allow for a strong structure with a high aerodynamic lift to struct...

Accelerating gradients in SRF cavities have consistently been increasing in recent years, largely due to better surface preparation techniques. This makes the critical magnetic eld, at which the cavity loses its superconductivity, a very important limit to address. We worked to minimize the peak magnetic eld Hpk on the surface of the cavity with respect to the acceleration rate Eacc. Allowing t...

A multi-laboratory collaboration is studying the feasibility of building a muon collider, the first phase of which maybe a neutrino factory. The phase space occupied by the muons is very large and needs to be cooled several orders of magnitude for either machine, 100,000 to 1 million for the collider and ten to 100 for the factory. Ionization cooling is the baseline method for muon cooling. Thi...

In this paper, the generation of h-shaped pulse is demonstrated in a nonlinear polarization rotation mode-locked erbium-doped fiber laser (MLEDFL). The length entire cavity about 2506 m to enhance effect cavity. multi-pulse state obtained firstly under certain pump power and state. By further adjusting controller with sharp top flat bottom generated ∼100 mW. And duration tuned range 54.63–470 n...

An acceleration element is proposed for compressing the electron pulse duration in a femtosecond photoelectron gun. The element is a compact metal cavity with curved-shaped walls. An external voltage is applied to the cavity where a special electric field forms in such a way that the slow electrons in the electron pulse front are accelerated more than the fast electrons, and consequently the el...