Abstruct.-Behavior and passage rate of smolts of Atlantic salmon Salmo salar and juvenile American shad Alma saplrilssima were compared between a standard (sharp-crested) and a modified surface bypass weir that employs uniform flow velocity increase (1 m.s-'.rnP' of linear distance). W i t h the first 30 rnin after release, significantly more smolts passed the modified weir than the standard we...

Experimental studies to investigate the depth of the scour conducted at a side-weir intersection located at the 180 curved flume which located Hydraulic Laboratory of Yıldız Technical University, Istanbul, Turkey. Side weirs were located at the middle of the straight part of the main channel. Three different lengths (25, 40 and 50 cm) and three different weir crest height (7, 10 and 12 cm) of t...

This study analyzes the air–water flow properties in overflow nappe jets. Data were measured several cross-sections of rectangular free-falling jets downstream a sharp-crested weir, with maximum fall distance 2.0 m. The obtained using conductivity phase-detection probe. Furthermore, back-flushing Pitot-Prandtl probe was used order to obtain velocity profiles. Five specific flows rates analyzed,...

A new parabolic–shaped guided valve tray is proposed. The gas–liquid two–phase flow of parabolic and conventional rectangular trays simulated using the computational fluid dynamics (CFD) method. clear liquid height on was predicted for different combinations superficial gas velocity, intensity weir height. values were in good agreement with calculated ones. has a more uniform form by comparing ...

in the present study, experimental investigations about the hydrodynamics of the conical cap tray (concap tray) have been carried out. the concap tray is an innovative and novel type of cap trays. the effect of the different weir height (2.5, 5 and 7 cm) on the weeping, entrainment and the total pressure drop for the concap tray was measured, compared and correlated. the hydraulic experiments w...

The piano key weir (PKW) is a type of nonlinear control structure that can be used to increase unit discharge over linear overflow weir geometries, particularly when the weir footprint area is restricted To predict the outflow passing over a piano key weir, the discharge coefficient in the general equation of weir needs to be known. This paper presents the results of laboratory model testing of...

This research presents a novel methodology for measuring the complex permittivity of material under test (MUT) in millimeter-wave (mmWave) band by using two rectangular waveguide adapters. Contrary to conventional Nicolson-Ross-Weir (NRW) method, proposed measurement method does not require fabrication process exact MUT insertion into waveguide. In our measurement, simple commercial adapters ar...

UNLABELLED The limit of the Colletotrichum gloeosporioides species complex is defined genetically, based on a strongly supported clade within the Colletotrichum ITS gene tree. All taxa accepted within this clade are morphologically more or less typical of the broadly defined C. gloeosporioides, as it has been applied in the literature for the past 50 years. We accept 22 species plus one subspec...

We present a simple and straightforward approximate approach to removing resonant artifacts that arise in the material parameters extracted near half-wavelength resonances that arise from transmission/reflection (T/R) measurements on low-loss materials. In order to determine material parameters near one such λ/2 resonance, by means of the 1st-order regressions for the input impedance of the sam...