In the past decade, aluminum alloys have become important structural materials in automotive industry, thanks to their low density, high strength, fracture toughness, and good fatigue performance. However, an limitation of is poor formability at room temperature; as a result, numerous studies been conducted with aim developing forming techniques overcome this facilitate more complex‐shaped comp...

A common strategy for stabilizing the greenhouse gas concentrations in the atmosphere was the introduction of new emissions limits for cars, and light commercial vehicles. For that reason the automotive industry is facing new challenges in order to fulfill these considerations. One of the strategies attained, is to employ new grades of Advanced High-Strength Steel (AHSS) to replace conventional...

Formability of automotive friction stir welded TWB (tailor welded blank) sheets isnumerically investigated in biaxial stretching based on hemispherical dome stretch (HDS) test infour automotive sheets of Aluminum alloy 6111-T4, 5083-H18, 5083-O and DP590 steel, havingdifferent thicknesses. The effects of the weld zone modeling and the thickness ratio on formabilityare evaluated. In order to car...

Viscoelastic materials can today be found in a wide range of practical applications. In order to make efficient use of these materials in construction, it is of importance to know how they behave when subjected to dynamic load. Characterization of viscoelastic materials is therefore an important topic, that has received a lot of attention over the years. This thesis treats different methods for...

Heat exchangers are one of the most important devices of mechanical systems in modernsociety. Most industrial processes involve the transfer of heat and more often they requirethe heat transfer process to be controlled. A heat exchanger is the heat exchanged betweentwo media, one being cold and the other being hot. There are different types of heatexchanger, but the type which is widely used in...

Sib,?A very simple and painless way of removing an ingrowing toe-nail is by the application of lunar caustic, but as it does not appear to be generally known, I shall here describe it for the benefit of the profession. A solid piece of lunar caustic should he well applied daily over the whole of the affected nail, which, in a few days, wiil become sufficiently detached, so as to allow of its be...

This paper considers the problem of selecting the most informative experiments x to get measures y for learning an inference model y = f(x). We propose a novel concept for active learning, transductive experiment design, to overcome the shortcomings of existing experiment design methods, e.g. insufficient exploration of available unmeasured data and poor scalability for large data sets. In-dept...

" If a tumour of this kind (pulsating encephaloid) be situated upon or under a large artery in the usual site of an aneurism, then the diagnosis is certainly replete with difficulty, and cannot indeed in many cases be made."?(Erichsen). Elahi Buksh, age 45 years, a weakly man in poor circumstances, came to the Dispensary on 5th February 1880, and gave the following history : Some 16 years ago h...