introduction: clinical application of radiography in endodontic practice is affected by reproducibility in the orientation of the x-ray source, image receptor and object. the inability of dentists to locate intra oral films or sensors in appropriate positions in different cases can cause complications in the performance of endodontic therapy. commercially available film holder (endoray) and con...

The development of high-throughput screening (HTS) in the past decade generated the capacity to quickly evaluate large numbers of compounds in a variety of assay methodologies.1 In many organizations, this capacity easily exceeded the size of internal compound collections. Efficient utilization of this HTS resource drove the need for an analogous increase in the rate of compound synthesis. This...

in this paper, a novel technique on friction aided deep drawing using tapered blank holder divided into eight segments is proposed to overcome defect of friction aided deep drawing using four segments tapered blank holder technique. a taper blank holder is designed to be of two parts: stationary part with 5 degree taper angle and moving parts divided into eight tapered segments. the main functi...

Fine-blanking is a molding process based on the common blanking process, which obtains hydrostatic stress through blank holder reverse jacking, in order to increase material plasticity. It requires special equipment, namely fine-blanking press, complete process. In this paper, problem of speed slide block fluctuation found actual use 12,000 kN hydraulic press after multi-stage pressure source o...

suggests are either slight or problematical themselves. But given that the profession still refuses to listen, the long, sad story of the scholarly tradition in English metrics cannot be told too often. Both experienced prosodists and those who are only occasional visitors to this field will find RM a useful and enjoyable guide to what Holder calls ’the muddled kingdom of meter’ (Chapter 1), ’t...

In this paper, the effect of air turbulence intensity on the flame structure in various radii and lengths of a flame holder numerically studied. Finite volume method is used to solve the governing equations. The obtained numerical results using realizable k-ε and β-PDF models show a good agreement with the experimental data. The results show that flame holder with greater lengths yield shorter ...

Aim: During minimal access surgery an assistant is controlling the laparoscope and surgeon should be free to manipulate instruments. Although the advantages of laparoscopic surgery are well documented, one disadvantage is that, for optimum performance, an experienced camera driver is required who can provide the necessary views for the operating surgeon. There are many drawbacks in human camera...