throughout history dams have been important structures in water storage. to avoid overtopping, damage, and or failure of a dam, adequate spillway is needed to release excess water from upstream floods. researchers found that spillways have to be made nonlinear in order to reach an economic structure with high performance. a piano key weir is one of the best solutions. piano key weirs are the mo...

It has been postulated that ferrite and thin film memories should have approximately the same ultimate speed limits.! For this to be true in the case of conventional toroids, it is clear that the storage element must be made smaller and the storage array made more compact with~ut increasing noise. In the past, techniques such as partial switching and two cores per bit2,3 have gone a long way to...

In this paper, a one-port time-domain/frequencydomain based technique using a short-circuited coaxial geometry inserted vertically in a liquid tank is designed and presented as a multi-level storage tank gauge and monitor. For storage tanks of small physical liquid levels, the attenuation inside the coaxial cable sensor may be neglected and both the physical liquid levels and liquid permittivit...

Microvascular permeability to water is characterized by the microvascular filtration coefficient (K(f)). Conventional gravimetric techniques to estimate K(f) rely on data obtained from either transient or steady-state increases in organ weight in response to increases in microvascular pressure. Both techniques result in considerably different estimates and neither account for interstitial fluid...

The binding neuron (BN) output firing statistics is considered. The neuron is driven externally by the Poisson stream of intensity l . The influence of the feedback, which conveys every output impulse to the input with time delay ∆ ≥ 0 , on the statistics of BN’s output spikes is considered. The resulting output stream is not Poissonian, and we look for its interspike intervals (ISI) distributi...

We have performed micromagnetic simulations of the vortex gyrotropic mode resonance in a range of disk geometries subject to spatially uniform out-of-plane magnetic fields. For disks of small lateral dimensions, we observe a drop-off in the mode’s frequency for field amplitudes approaching the disk saturation field. This non-linear frequency response is shown to be associated with an increased ...

Recently, the use of hybrid systems using multiple heat sources in buildings to ensure a stable energy supply and improve the system performance has gained attention. Among them, a heat pump system using both solar and ground heat was developed and various system configurations have been introduced. However, establishing a suitable design method for the solar-assisted ground heat pump (SAGHP) s...

Detention devices are often used as alternative measures for stormwater control. The Envelope Curve Method is widely in Brazil to estimate detention device volumes. This method estimates the storage volume based on inlet and outlet balance, where obtained by Rational orifice bottom discharge. Usually, flow adopted a constant equivalent maximum allowed, this procedure can cause reservoir undersi...