Methods: Dust swabs were collected from 18 ultrasound machines of three common types. Five were used completely covered (closed plastic bags or household plastic cling-film), four incompletely covered (with open or perforated plastic bags), and nine uncovered. Swabs were tested for porcine circovirus type 2 (PCV-2) by polymerase chain reaction (PCR), for porcine reproductive and respiratory syn...

Submitted for the MAR13 Meeting of The American Physical Society The Onset of Plasticity in thin Polymer Films BEKELE J. GURMESSA, ANDREW B. CROLL, North Dakota State University — Polymers are widely used materials because of their numerous advantageous mechanical properties, for example their high degree of toughness. Despite the fundamental importance of the onset of plastic deformation to ma...

Many factors influence the shelf-life, color, and sensory attributes of beef. Packaging is one of those factors. There are several different types of packaging used in the meat industry, including vacuum packaging, overwrap, and modified atmosphere packaging (MAP). Traditionally wholesale cuts are vacuum packaged, boxed, and sent to retailers where they cut the meat, place it on a styrofoam tra...

The skin abrasion and subsequent infection of wounds and joints are very frequent in piglets in farrowing pens on commercial farms. The disinfectant with glycerine content used after farrowing created oil film on plastic grates and piglets slid back on this smooth surface. The reduction of thoracic limbs injury was noted after deletion of disinfection (P<0.01). Covering of slippery grates by pl...

Suffolk County, NY, on March 29 passed a law banning the use of plastic grocery bags and other plastic food containers starting in July, 1989. The law forbids the use of polystyrene foam (PS foam) and polyvinyl chloride (PVC) for food packaging in restaurants, bars, delis, roadside stands, grocery stores, and other retail food establishments. PS foam is used in coffee cups, egg cartons and meat...

abstract background: after the umbilical cord is cut, premature neonates face numerous problems including hypothermia. with regard to serious complications of hypothermia and incapability of conventional methods in preservation of neonates’ temperature after admission, the researcher decided to conduct a study on the effects of two polyethylene covers in prevention of hypothermia among prematur...

Saving water is a major challenge to increase environmental sustainability, particularly in semi-arid regions where most table grapes are produced. Water use driven by atmospheric demand, which combines effects of solar radiation (prominent factor), wind, air temperature and humidity. Covering with transparent plastics spread many regions. Covers lower incoming wind speed, changing This study a...

This paper describes the development of a control and monitoring oriented model of a plastic film manufacturing process. The model is mainly derived from first-principles and has been implemented in the Matlab/Simulink dynamic simulation environment. The development of the model forms the first phase of a project that aims to develop a nonlinear sub-space based monitoring, fault detection and t...

Vapor phase syntheses, including parylene chemical vapor deposition (CVD) and initiated CVD, enable the deposition of conformal polymer thin films to benefit a diverse array of applications. This short review for nanotechnologists, including those new to vapor deposition methods, covers the basic theory in designing a conformal polymer film vapor deposition, sample preparation and imaging techn...