نتایج جستجو برای: fluidic thrust vectoring ftv
تعداد نتایج: 12569 فیلتر نتایج به سال:
It is always a challenging work to develop an accurate and effective method to reconstruct a degraded image. In this paper, the nonlocal variation Fractional Total Variation (FTV) regularization technique for image zooming is investigated. To enhance edges, yet preserve textures, fractional order calculus based image zooming method is proposed, which can deal well with fine structures like text...
DAS-ELISA, immunohistochemistry and electron microscopy were used to investigate the association of the causal agent of bacterial wilt, Erwinia tracheiphila (Smith), within the beetle Acalymma vittatum (F.). After a 24-h acquisition period, a high percentage of individuals tested positive for E. tracheiphila antigen using both immunohistochemistry (100%) and DAS-ELISA (70-60%). Both assays show...
Enhancement of heat and mass transfer and decrease of energy dissipation are great necessities of the evolution of fluid flow devices. Utilizing oscillatory or pulsatile fluid flow for periodic disturbing of velocity and thermal boundary layers is one of the methods with exciting results. Passive methods of generating oscillatory flow are preferred to active methods because of simplicity, no ne...
Modelling the foot-ankle system (FAS) while exposed to foot-transmitted vibration (FTV) is essential for designing inhibition methods prevent effects of vibration-induced white-foot. K-means analysis was conducted on a data set containing transmissibility from floor 24 anatomical locations right foot 21 participants. The found three be sufficient summarising FTV response. A segment, four degree...
The miniaturization of integrated fluidic processors affords extensive benefits for chemical and biological fields, yet traditional, monolithic methods of microfabrication present numerous obstacles for the scaling of fluidic operators. Recently, researchers have investigated the use of additive manufacturing or "three-dimensional (3D) printing" technologies - predominantly stereolithography - ...
The effects of projectile rotation on the internal and external flow fields supersonic fluidic element are numerically studied using sliding grid technique RNG k-ε turbulence model. rotating speed fields, switching time output characteristics studied. results show that: for field, there is no obvious change in field structure at low angular velocity; when velocity increases to 20 r/s, becomes o...
BACKGROUND Adolescents and young adults (AYAs) are of special interest in a group of children exposed to family violence (FV). Past-year prevalence of exposure to FV is known to be highest in AYAs and has severe consequences. Peer support is an effective approach to behavior change and the Internet is considered suitable as a mode of delivery. OBJECTIVE The study aimed to evaluate both effect...
An adaptive dynamic inversion control formulation is presented that takes advantage of the inherent dynamic structure of the state-space description of a large class of systems. The formulations impose the exact kinematic differential equations, thereby restricting the adaptation process that compensates for model errors to the acceleration level. The utility of this formulation is demonstrated...
This report describes a non-destructive fluidic memory device with associated fluidic alphanumeric display, developed by Giannini Controls Corporation under contract NAS 12-43 with NASA Electronics Research Center. The device uses the surface tension of a liquid bead in an hour-glassshaped cavity to achieve a bi-stable memory effect which does not require a continuous supply of fluid power. Thu...
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