the aim of this study is to provide a control software system, based on monte carlo simulation, and calculations of dosimetric parameters of standard and wedge radiation fi elds, using a monte carlo method. gate version 6.1 (opengate collaboration), was used to simulate a compact 6 mv linear accelerator system. in order to accelerate the calculations, the phase-space technique and cluster compu...

The process of wafer fabrication is arguably the most technologically complex stage in semiconductor manufacturing. This manufacturing environment has a number of unusual features. Probably reentrancy of lots and unbalanced production facilities are two of the most important and unique features of semiconductor wafer fabrication facilities (fabs) that necessitate lot flow control and effective ...

by Eric W. Johnson With the development of improved fabrication processes, more responsibility is placed on circuit designers to develop circuits that are tolerant of fluctuations in the fabrication process. To achieve this higher reliability, designers must have access to actual data variations in the fabrication process. Historically, this process data has been collected from test measurement...

The Industrial Research Promotion Fund (Forschungsförderungsfond, FFF) is Austria’s most important source of finance funding R&D projects carried out by business enterprises. However, the decision on the level of R&D subsidies will be affected by both the funding agency's objectives and firm characteristics. This paper analyzes the factor explaining the intensity of R&D subsidies as well as the...

A data buoy for measuring coastal wave-action has been designed and constructed. The is essentially a 0.6 m diameter sphere that made of fiber-glass with aluminum, steel polymer parts. While the overall geometry superficially similar to existing commercial spherical buoys (e.g. Wave-Rider by Datawell), present design based on simple robust structure mass-market electronics. significant dual-use...

Our goal is to develop an automated digital fabrication process that can make any object out of smart materials. In this paper, we present an algorithm for creating shapes by the process of duplication, using modules we have termed smart sand. The object to be duplicated is dipped into a bag of smart sand; the particles exchange messages to sense the object’s shape; and then the particles selec...

This paper designs a miniaturized and ultrathin absorptive/transmissive radome based on interdigital square loops. The thickness of designed radome is only 4.5mm. The period of the radome is 10mm, which is λ/17.5 (λ corresponding to the wavelength of center frequency of passband). In order to verify the transmission and reflection properties, a prototype is fabricated. Its effectiveness is veri...

This study examines technology use in Canada’s manufacturing sector, and how a set of technology-using manufacturing establishments performed relative to non-users. Data originates from a recent Statistics Canada survey, asking manufacturing firms about their use of 22 advanced manufacturing technologies, and panel data taken from the Census of Manufacturers. Results show that the use of advanc...