Foundries represent an important sector of the manufacturing industry and these foundry industries in developing countries suffer from poor quality and productivity due to number of process parameters involved in the casting process. Even in a completely controlled process, defects in casting are observed and hence casting process is also known as process of uncertainty which challenges explana...

Casting failures of alloys in dental technology should be the exception, not the rule. They have to be detected in time and associated with possible causes. For the experimental part base metal alloys single tooth restorations were achieved using the conventional lost wax process for casting in order to be evaluated. Some casting defects obtained during the experimental part are exemplified: in...

Components for engineering systems, such as gas turbines and jet engines operating at high temperature are usually produced in superalloys. The investment casting process is most widely used for manufacturing these components due to the ability of the process to produce parts with complex geometries to close dimensional tolerances. Other processing routes are less advantageous due to high mecha...

OBJECTIVE Assessment of surgical outcomes of biceps tendon lengthening (BTL) surgery in obstetric brachial plexus injury (OBPI) patients with elbow flexion contractures, who had unsuccessful serial casting. BACKGROUND Serial casting and splinting have been shown to be effective in correcting elbow flexion contractures in OBPI. However, the possibilities of radial head dislocations and other c...

The objectives in this work were to develop, calibrate, and apply a model to predict ideal taper profiles down the narrow faces of the SIDERAR slab casting mold for several different casting speeds, steel grades, flux powder compositions, and widths. A significant amount of original research was undertaken for this challenging problem. A finite difference model of transient 1-D heat conduction ...

This paper reports on an eeort to integrate two veriica-tion tools, the Concurrency Workbench of the New Century (CWB-NC) and PIOATool. Our aim is to build a single tool that combines the \functional" analysis capabilities of the CWB-NC with the compo-sitional performance-analysis features of PIOATool. We discuss some of the issues involved in the integration, highlighting a particular integrat...

We assessed the sympatho-vagal actiyities of the heart after administration of capsalcin by measuring the pewer spectral analysis in rats. There were major two frequency components of heart rate variability, which we defined as high (1.0 Hz < , HF) and low (LF, <1.0 Hz) frequency components. Vagal blockade by atropine abo)ished the high frequency component, and lowered the amplitude of the low ...

This study evaluated the sensitivity of an experimental model to mold temperature using a two-chamber casting machine and its recommended investment (Exp. 1), and the effect of sprue diameter and length using a one-chamber casting machine and its recommended investment (Exp. 2). Experimental patterns were cast from commercially pure titanium and percentage casting success obtained. Mold tempera...

57 ABSTRACT A liquid pharmaceutical composition which can be administered as a foam by means of suitable supplying devices, without necessity of gas propeller, said compo sition consisting of: a) one or more natural or synthetic ionic or non ionic, acid, basic or neutral surfactants; b) a solvent or a solvent mixture; c) an active ingredient or a combination of active ingredients; d) optionally...

Casting had symbolic significance and was strictly controlled in the Shang dynasty of ancient China. Vessel casting was mainly distributed around the Shang capital, Yin Ruins, which indicates a rigorous centralization of authority. Thus, for a casting mold to be excavated far from the capital region is rare. In addition to some bronze vessel molds excavated at the Buyao Village site, another ke...