The hyporheic zone in stream ecosystems is a heterogeneous key habitat for species across many taxa. Consequently, it attracts high attention among freshwater scientists, but generally applicable guidelines on sampling strategies are lacking. Thus, the objective of this study was to develop and validate such sampling guidelines. Applying geostatistical analysis, we quantified the spatio-tempora...

Flow features, due to air injection through multiple vents on the surface of a hydrofoil inclined at an angle with respect free-stream in cavitation tunnel, are presented here. The hydrofoil, chord length, c, is oriented inclination, α = 3.5°. Froude number, Fn, based velocity, V∞, and vent diameter, dh, 30.30, 50.51 70.71. Air injected non-dimensional coefficient, Cq∼16−8917. bubble packing pe...

1. Terrestrial dispersal by aquatic insects increases population connectivity in some stream species by allowing individuals to move outside the structure of the stream network. In addition, individual survival and reproductive success (as well as dispersal) are tightly linked to the quality of the terrestrial habitat. 2. In historically forested catchments, deforestation and altered land use h...

â  performance and capacity of sulfur recovery unit (sru) are greatly affected by the h2s:co2 ratio of the acid gas stream. the acid gases in iran contain around 35 mol% h2s and 60 mol% co2. this low concentration of h2s calls for more complex sulfur plant, larger equipments, and higher costs. acid gas enrichment processes (age) is run to upgrade low quality acid gas collected from gas treating...

Applications from several domains are now being written to process live data originating from hardware and softwarebased streaming sources. Many of these applications have been written relying solely on database and data warehouse technologies, despite their lack of need for transactional support and ACID properties. In several extreme high-load cases, this approach does not scale to the proces...

INTRODUCTION The prescribing of anti-psychotic drugs has become a normal clinical practice. METHODS This article presents a longitudinal, multicentre study of 12 months conducted on 266 children and adolescents who were prescribed a first or second generation antipsychotic drug for the first time, and the baseline results of the study. The follow-up protocol had as its purpose to detect the p...

The results from direct numerical simulations of a spatially evolving super sonic at plate turbulent boundary layer ow with free stream Mach number of are presented The simulated ow eld extends from a transition region initiated by wall suction and blowing near the in ow boundary into the fully turbulent regime Distributions of mean and turbulent ow quantities are ob tained and an analysis of t...