In casting about for a subject on which I might profitably address you this evening, I remembered that it is now fifty years since the first general Public Health Act, that of 1848, was passed. The Annual Report of the Registrar General for 1896, published this year, completes also a fifty years' record of the deaths from different causes in England and Wales; sinfce the classification of the c...

Casting has many process variations depending upon the material, the type of pattern, mould and the pouring technique like sand casting, investment casting, die casting, squeeze casting and lost foam casting. Sand casting is the most widely used process which can be used to produce intricate parts in almost every metal that can be melted. Casting defects analysis is process of finding the root ...

Male, born in 1962, Ph.D, Professor. He obtained his Ph.D at Nanchang University. His research and teaching interests mainly focus on magnesium/aluminum alloys and investment casting process. He has published more than 200 papers by now. E-mail: [email protected] Received: 2011-01-25; Accepted: 2011-05-04 *Yan Hong *Yan Hong, Hu Xiaowu, Nie Qiao and Chen Lei (School of Mechanical-Electrical En...

The effect of casting pores on the very high cycle fatigue (VHCF) behavior of a directionally solidified (DS) Ni-base superalloy DZ4 is investigated. Casting and hot isostatic pressing (HIP) specimens were subjected to very high cycle fatigue loading in an ambient atmosphere. The results demonstrated that the continuously descending S-N curves were exhibited for both the casting and HIP specime...

The article presents pr ocess application of the rapi d prototyping (RP) for manufacturing of blades of aircraft turbine in monocrystallization and also directional crystallization of casting process. It is describing the method of modelling of the chosen elements of casting model kit with the usage of RP and RT system s. The article presents the analysis of additive rapid prototyping methods (...

background: a variety of techniques for the management of spasticity have been suggested, including positioning, cryotherapy, splinting and casting, biofeedback, electrical stimulation, and medical management by pharmacological agents, botulinum toxin a (bta) is now the pharmacological treatment of choice in focal spasticity. bta by blocking acetylcholine release at neuromuscular junctions acco...

——————————  —————————— Abstract-Simulation is now well accepted as a scientific approach to casting methoding, ensuring design process parameters, internal quality, optimal yield and short development time of casting process. Method layout involves decisions regarding part orientation in mould, parting line, cores, cavity layout, feeders, neck and gating system. An improper method layout leads...

A hierarchical decomposition of a simple polygon is introduced. The hierarchy has depth O(log n), linear size, and its regions have at most three neighbors. Using this hierarchy, circular ray shooting queries in a simple polygon can be answered in O(log n) query time and O(n log n) space. If the radius of the circle is xed, the query time can be improved to O(log n) and the space to O(n).