The asymmetric temperature field is one of the main factors inducing cracking inner shaft lining during freezing-shaft sinking. evolution equation for thermophysical and mechanical properties concrete construction period basis revealing mechanism. In this study, several experiments were conducted to reveal field, thermal conductivity, specific heat capacity, compressive strength, tensile elasti...

Abstract We model the Neupert effect that relates flare heating energy with observed soft X-ray (SXR) emission. The traditional form of refers to correlation between time-integrated hard or microwave light curve and SXR curve. In this paper, we instead use as proxy for ultraviolet (UV) emission at footpoints loops modify by taking into account discrete nature heating, well cooling. modified emp...

The present study aims to evaluate the performance of concrete beams with different Fiber Reinforced Polymer (FRP) and steel bars exposed elevated temperatures through a detailed experimental investigation. Flexural behavior is analyzed Carbon (CFRP), Basalt (BFRP), Glass (GFRP), tests. Beams were temperature 925 °C (1 hr) following standard fire curve, subsequently cooled by either natural or ...

We calculate light-curves for Gamma-Ray Burst afterglows when material ejected in the explosion is confined to a jet which propagates in a medium with a power-law density profile. The observed light-curve decay steepens by a factor of Γ when an observer sees the edge of the jet. In a uniform density medium the increase in the power-law index (β) of the light-curve as a result of this edge effec...

Aero-thermal optimization on multi-rows of film cooling over a flat plate has been performed to optimize the inclination angles. Hence three cylindrical holes with injection angles ?, and ? have considered. The hole 3 mm diameter an inclined angle between 25-35?. Numerical simulations were at fixed density ratio 1.25 blowing 0.5. control-volume method SIMPLEC algorithm used solve steady-state R...

AIM OF THE STUDY The effectiveness and safety of non-invasive surface cooling was compared to invasive endovascular cooling in an animal model. METHODS Eight healthy pigs (29-38 kg) were cooled twice, starting in the first 4 pigs with unique surface cooling pads followed by endovascular cooling. In the second 4 pigs the order was reversed. The goal was to quickly lower pulmonary artery temper...

Improper food cooling practices are a significant cause of foodborne illness, yet little is known about restaurant food cooling practices. This study was conducted to examine food cooling practices in restaurants. Specifically, the study assesses the frequency with which restaurants meet U.S. Food and Drug Administration (FDA) recommendations aimed at reducing pathogen proliferation during foo...

solute transport processes are affected by soil pore water velocity distribution. pore size distribution, which can be used to infer pore water velocity distribution, can be estimated from a soil water retention curve (n). in this study, a solute breakthrough curve was simulated using soil hydraulic parameters in four different soils. to evaluate the proposed model, predictions were compared to...