The presented study conveys the initial full-scale experimental for future hot-rolled asymmetric steel I-beams, termed A-shapes. primary use these beams is residential building floor systems. Current systems commonly utilize concrete solutions, which achieve a shallow depth optimal floor-to-floor heights. However, are relatively slow to construct because of amount formwork, rebar and post-tensi...

The 420 MPa grade offshore engineering steels with the different Mo contents were fabricated through Ca deoxidation. effect of content on microstructure and impact toughness coarse-grained heat-affected zone (CGHAZ) after welding heat input 100 kJ/cm investigated by simulation high-temperature laser scanning confocal microscopy (HTLSCM). As is increased from 0.08 to 0.16 wt%, at ?40°C 15 160 J,...

In the past, full-service stock brokerage firms had a strategic advantage over discount brokers because of the control full-service brokers had over the information provided to the customer. Full-service stockbrokers acted as information intermediaries in that they were able to capture residual value from the transfer of information to make a profit. Strategic vulnerability occurs, in this case...

It is well accepted that diagrams play a crucial role in human reasoning. But in mathematics, diagrams are most often only used for visualizations, but it is doubted that diagrams are rigor enough to play an essential role in a proof. This paper takes the opposite point of view: It is argued that rigor formal logic can carried out with diagrams. In order to do that, it is first analyzed which p...

In April 2010, the Deepwater Horizon oil rig caught fire and exploded, releasing almost 5 million barrels of oil into the Gulf of Mexico over the ensuing 3 months. Thousands of oil spill workers participated in the spill response and clean-up efforts. The GuLF STUDY being conducted by the National Institute of Environmental Health Sciences is an epidemiological study to investigate potential ad...

OBJECTIVES The accuracy and precision of two new methods of model-based radiostereometric analysis (RSA) were hypothesised to be superior to a plain radiograph method in the assessment of polyethylene (PE) wear. METHODS A phantom device was constructed to simulate three-dimensional (3D) PE wear. Images were obtained consecutively for each simulated wear position for each modality. Three comme...

There is growing interest in the novel concept of operating Enhanced Geothermal Systems (EGS) with CO2 instead of water as heat transmission fluid. Initial studies have suggested that CO2 will achieve larger rates of heat extraction, and can offer geologic storage of carbon as an ancillary benefit. Fluid-rock interactions in EGS operated with CO2 are expected to be vastly different in zones wit...

Exposure of axenic cultures of the amoeboflagellate Naegleria gruberi EGs to the thymidine analogue 5-bromo-2'-deoxyuridine (BrdU) resulted in the induction of virus-like particles (VLP) and various structures associated with their development and presumed transmission. Previously, VLP induction could be accomplished only by growing amoebae in the presence of living bacteria as a food source. A...