Ethylene vinyl alcohol (EVOH) is one of the best known flexible thermoplastic oxygen barrier materials in use today. It is especially important for refrigerated and shelf-stable foods where oxygen deteriorates the quality of packaged products and reduces their shelf life. EVOH accounts for a majority of thermoplastic barrier materials used for rigid or semi-rigid retortable food containers. How...

Title of Document: THERMOPLASTIC MICROFLUIDIC TECHNOLOGIES FOR PORTABLE AND DISPOSABLE BIOANALYTICAL AND DIAGNOSTIC PLATFORMS Omid David Rahmanian, Ph.D. 2015 Directed By: Professor Don L. DeVoe Department of Mechanical Engineering Portable and cost-effective medical diagnostic technologies that require minimal external infrastructure for their operation are highly desirable for on-field milita...

A method for integrating on-chip displacement micropumps in thermoplastic microfluidic devices is presented. Stainless steel screws serve as direct displacement pumping elements integrated directly into threaded ports formed in a thermoplastic substrate, with a microcontroller used to precisely modulate flow rates over a wide range from 0.5 – 35 μL/min, in a compact and portable format. Combine...

A resilient soft liner (RSL) has been used in processed complete dentures but controlling its thickness has always been a challenge because of uneven reduction of the denture’s intaglio surface. Use of a thermoplastic vacuum-formed template and an endodontic K-file, as guides, for the reduction of a processed mandibular complete denture to receive RSL is described in the present report. A proce...

Increase of plastics accumulation in the environment cause ecological threats and has been one serious issue worldwide. In current study, two bacterial isolated strains Bacillus safensis amyloliquefaciens were used for their plastic degradation capabilities. The biodegradation low density polyethylene thermoplastic was assessed by weight reduction, Scanning electron microscopy (SEM) analysis cu...

This application uses live data from a thermoplastic injection moulding manufacturer to examine the feasibility and effectivehess of using backpropagation artificial neural networks for predictive quality control. Preprocessing and post processing of live data, formulating neural predictive strategies, selecting architecture and parameters, and handling of temporal aspects are topics. Performan...

AIM To gather data from Diplomates of the American Board of Endodontics regarding treatment of dilacerated canals. MATERIALS AND METHODS A questionnaire addressing definition, endodontic treatment procedures and prognosis was constructed and distributed via e-mail to 708 Diplomates of the American Board of Endodontics. Data from 150 respondents, a 21% response rate, were collected by using a ...

A microencapsulated flame retardant was used in order to produce a flame retardant nonwoven substrate. Melamine-formaldehyde polymer-shell microcapsules, containing Afflamit® PLF 280 (resorcinol bis(diphenyl phosphate)) as the core substance, were coated by an outer thermoplastic wall (polystyrene (PS) or poly(methyl methacrylate)), before being applied to a core/sheet-type bi-component PET/co-...