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In this paper, we present an approach to a pipeline for time lapse photography using conventional digital images converted to HDR (High Dynamic Range) images (rather than conventional digital or film exposures). Using this method, it is possible to capture a greater level of detail and a different look than one would get from a conventional time lapse image sequence. With HDR images properly to...

abstract rockfill dams are usually used for affecting the flood and reducing the peak discharge. the materials used in these dams will usually make the flow turbulent, therefore darcy's law can not be used for this kind of dams and the equations based on the non-darcy flow must be applied. non-darcy flow equations are showed in two general ways including: and .one of the main parameters for flo...

The dead fuel moisture content (DFMC) is the key driver leading to fire occurrence. Accurately estimating DFMC could help identify locations facing risks, prioritise areas for monitoring, and facilitate timely deployment of fire-suppression resources. In this study, environmental variables, including air temperature, relative humidity, wind speed, solar radiation, rainfall, atmospheric pressure...

The structural parameters of a grain dryer are directly related to the its energy consumption and quality formation. Therefore, based on Ergun model, air state uniformity evaluation method, effect changes in ventilation area airflow resistance, drying consumption, efficiency theoretically experimentally studied this work under same initial weight flux. results show that conditions temperatures ...

We investigate the gas flow behavior of unidirectional porous ceramics processed by ice-templating. The pore volume ranged between 54% and 72% and pore size between 2.9 [Formula: see text]m and 19.1 [Formula: see text]m. The maximum permeability ([Formula: see text] [Formula: see text] m[Formula: see text]) was measured in samples with the highest total pore volume (72%) and pore size (19.1 [Fo...

An experimental study is conducted to determine the effect of different types of nanoparticles on the gas fluidization characteristics of nanoparticle agglomerates. Taking advantage of the extremely high porosity of the bed, optical techniques are used to visualize the flow behavior, as well as to measure the sizes of the fluidized nanoparticle agglomerates at the bed surface. Upon fluidizing 1...