For several years, the bituminous laboratory of the Joint High­ way Research Project has been concerned with the testing of bitu­ minous-aggregate mixtures and with the development of knowledge that would lead to an understanding of the properties of bituminous mixtures as satisfactory paving materials. At the Thirty-Eighth Annual Road School, a paper entitled, “Role of the Laboratory in the De...

The influence of hydrogen on the mechanical behavior a quenched and tempered 42CrMo4 steel has been evaluated by means high internal pressure fracture tests carried out precharged notched cylindrical specimens. specimens were in 1 M H2SO4 + 0.25 g/l As2O3 solution for 3 h with 1.2 mA/cm2. Hydraulic performed at different loading rates. Hydrogen embrittlement resistance increased grain size refi...

To accelerate the large-scale cellular automaton (CA) simulation for grain growth, a parallel CA model growth was developed. The implemented based on compute unified device architecture (CUDA) computing platform. verified by of single crystal and columnar-to-equiaxed transition (CET) an Al-7wt% Si specimen uniform undercooling with constant cooling rate. grid independence verified. plate-like c...

Abstract The paper applies the Structure from Motion photogrammetry technique to measure three-dimensional shrinkage deformations of a cylindrical specimen during drying. A clay–binder mixture was statically compacted, and its behaviour observed for four weeks with newly established photogrammetric system. complete surface information including XYZ coordinates RGB values then reconstructed form...

background : lung cancer is still the leading cause of cancer- related deaths and most of themâ  are normally diagnosed in late stages, so there is an urgent need to establish reliable tools for the identification at early stages of the disease. in this study, we use an eleven gene signature test to examine lung biopsy specimens for diagnostic, prognostic & therapeutic purposes. methods : bronc...

Curl is a quality problem that makes paper less suitable for printing. A paper sheet that has structural variations in its thickness such as gradients of "bre orientation, density and "ller content, will curl and hence assume a cylindrical shape when its humidity content is changed. We propose a method to measure curl that can be used for automated analysis of the paper quality. The shape of th...

Small samples of rock, like those used in laboratory collision experiments, are known to be much stronger than bodies that are meters to hundreds of meters in size [1]. Specifically, the impactor energy per unit target mass needed to shatter the target decreases dramatically with increasing target size. This occurs because the strength of rock, like many other geological materials, depends stro...

The mechanical properties of brain under various loadings have been reported in the literature over the past 50 years. Step-and-hold tests have often been employed to characterize viscoelastic and nonlinear behavior of brain under high-rate shear deformation; however, the identification of brain material parameters is typically performed by neglecting the initial strain ramp and/or by assuming ...

Adobe is commonly found in Aveiro's ancient constructions. Preservation and rehabilitation of those constructions, some of them with architectural and historical interest, has been forgotten for many years. As a result, in Aveiro region, the majority of existing constructions in adobe is structurally weak, and, in several cases, they are in the threshold of ruin. Rehabilitation and/or strengthe...