Floods control equipment in large dams is one of the most important requirements hydraulic structures. Howell–Bunger valves and butterfly are two these types flow controls that commonly used bottom outlet dams. The optimal longitudinal distance (L) between such turbulence from valve should be dissipated before entering valve. Subsequently, passing through must have a fully developed state reach...

Recent observations have shown that the periphery of the Greenland ice sheet (GrIS) is thinning rapidly and that this thinning is greatest around marine-terminating outlet glaciers. Several theories have been proposed which provide a link between climate and ice thinning. We present surface elevation change (dh/dt) data from NASA’s Program for Arctic Regional Climate Assessment (PARCA) laser al...

Methylisoborneol (MIB) and geosmin are cyanobacterial metabolites that occur at nanograms per liter levels in surface water supplies and are responsible for many taste and odor complaints about the aesthetics of drinking water. This study evaluated three water supply reservoirs with bottom-release (hypolimnion) outlet structures in Arizona. MIB concentrations were always higher than geosmin con...

Controlled pumping of fluids through microfluidic networks is a critical unit operation ubiquitous to lab-on-a-chip applications. Although there have been a number of studies involving the creation of passive flows within lab-on-a-chip devices, none has shown the ability to create temporally stable flows for periods longer than several minutes. Here a passive pumping approach is presented in wh...

In the framework of a research project studying the influences of pumping/turbine modes on turbulence, flow fields and suspended sediments in reservoirs, prototype measurements are carried out at the Grimsel II pumped storage plant (Switzerland). In situ recordings comprise flow and velocity patterns in the lower reservoir. For the measurement of flow velocities, Acoustic Doppler Current Profil...

Effective treatment of arterial thoracic outlet syndrome includes early recognition and timely correction, with sufficient decompression of the thoracic outlet. A 56-year-old female suffered recrudescent right upper extremity ischemia due to thromboembolic event, raising suspicion for arterial thoracic outlet syndrome and prompting further imaging studies for confirmation. Decompression of the ...

The paper presents an original fabrication process of a microfluidic device for identification and characterization of cells in suspensions using mpedance spectroscopy. The device consists of two glass wafers: a bottom wafer comprising a microfluidic channel with two electrodes added or impedance measurement, and a top glass wafer in which inlets and outlets are realized. The fact that the devi...

The diagnosis of thoracic outlet syndrome (TOS) is intrinsically difficult, and the literature about it is full of confusing terminology. Symptoms may arise due to compression of neural and/or vascular elements in one or more of three different locations. A number of tests were developed during the early part of this century, and a variety of syndromes have been described that relate to these t...