one major branch in mathematical sciences, which recently has been given especial attention, is optimization, including various methods such as linear programming, integer programming, and dynamic programming. due to the unique characteristics of air treatment systems, specifically multistage nature of such systems, dynamic programming has been widely applied. the purpose of this paper is to fi...

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...

PURPOSE The aim of this study was to determine cancer morbidity amongst Swedish iron foundry workers with special reference to quartz exposure. In addition to respirable dust and quartz, phenol, formaldehyde, furfuryl alcohols, polycyclic aromatic hydrocarbons (PAHs), carbon black, isocyanates and asbestos are used or generated by foundry production techniques and exposure to any of these subst...

High quality ontologies have both textual and logical definitions for their terms. Definitions serve many purposes: good textual definitions allow for experts and non-experts alike to understand the content of an ontology and use it in the manner the authors intended; logical definitions are necessary for reasoners to verify that an ontology is consistent, and may make application of the ontolo...

BACKGROUND Work related dust exposure is a risk factor for acute and chronic respiratory irritation and inflammation. Exposure to dust and cigarette smoke predisposes to exogenous viral and bacterial infections of the respiratory tract. Respiratory infection can also act as a risk factor in the development of atherosclerotic and coronary artery disease. AIMS To investigate the association of ...

Exploration of the mechanistic basis of biology and disease has long leveraged the concept of a genotype, which represents the genetic composition associated with a physical trait. Translational research efforts rely increasingly on the ability to integrate genotype-phenotype data across systems and organism communities, but are hindered by the lack of a shared, computable model of the informat...

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