My dissertation work was focused on developing a method for evaluating and standardizing ontologies, based on an integration of the Basic Formal Ontology (BFO) and OntoClean [1]. The primary objective is to help standardize the creation of ontologies for the Open Biomedical Ontologies (OBO) Foundry, for which BFO is the chosen upper ontology, given that there are no formal criteria that candida...

We demonstrate a monolithic photonic integration platform that leverages the existing state-of-the-art CMOS foundry infrastructure. In our approach, proven XeF2 post-processing technology and compliance with electronic foundry process flows eliminate the need for specialized substrates or wafer bonding. This approach enables intimate integration of large numbers of nanophotonic devices alongsid...

This paper describes a doubly balanced Gilbert Cell mixer designed in BJT and CMOS technology to operate within 0 to 5 V. A 100 mv input signal was applied at both RF and LO port at different frequencies and their simulation curves were studied for a multiplier. The design done in BJT was taped out for fabrication and the chip on its return from foundry, was tested for its results. A comparison...

K. Kaczmarska, B. Grabowska, D. Drożyński, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland The results of preliminary tests of selected properties of the moulding sands with the binder in the form of a 5 % water solution of the sodium salt of carboxymethyl starch (with a degree of substitution (DS) of 0,2 and 0,87) are presented in this study. The mouldi...

To supplement epidemiological investigations into the mortality from respiratory cancer in the small industrial town of Armadale, central Scotland, spherical moss bags were used to study the deposition of atmospheric metal pollution there during a period of 17 months. High concentrations of most metals were found in areas close to the local steel foundry. High concentrations of some metals were...

Microshrinkages are known as probably the most difficult defects to avoid in high-precision foundry. The presence of this failure renders the casting invalid, with the subsequent cost increment. Modelling the foundry process as an expert knowledge cloud allows properly-trained machine learning algorithms to foresee the value of a certain variable, in this case the probability that a microshrink...

Casting production has environmental implications that extend beyond the foundry’s premises. By taking a life-cycle approach the impacts upstream (supply side) and downstream (customer/user side) can be identified. The benefits of a foundry’s actions to reduce an environmental impact might be leveraged to reduce impacts at other stages in the life-cycle. However, as a minor player in the supply...

In this paper, we represent a method for machine learning to predict the defect in foundry operation. Foundry has become driving tool produce part another industry like automobile, marine, and weapon. These processes mainly have two critical problems decrease quality assurance. Now, increase of The process’s failure is associated with micro shrinkage ultimate tensile strength. We process by uti...

backgrounds and aims: aluminum and in particular its compounds make up a large proportion of the pollutants coming from the aluminum foundry. in several studies conducted on the harmful effects of aluminum in recent decades, it has been identified as a neurotoxic metal. chronic occupational exposure through inhalation of dust is a common problem in aluminum foundries. investigation of the expos...

This paper discusses the initial efforts to implement simulation modeling as a visual management and analysis tool at an automotive foundry plant manufacturing engine blocks. The foundry process was modeled using Pro Model to identify bottlenecks and evaluate machine performance, cycle times and production data (total parts, rejects, throughput, products/hr) essential for efficient production c...