Polycarbonate composites are widely spread in many industries, for product manufacturing. Although these materials being used with high fidelity, their mechanical properties will highly depend on manufacturing processes, fiber orientations respect to external loads, type of loading, environmental conditions, and so forth. This paper presents the Charpy impact behavior three polycarbonate grades...

bacteriorhodopsin (br) is the light harvesting and photoactive proton pump found in the membrane of a salt marsh bacteria. this protein has significant potential to use in optical computing and memory devices due to unique intrinsic physical properties of photo and bioelectric. all these features make br one of the most promising protein candidates in protein memories. protein memory is a kind ...

The spillage of enflurane on the outside of a membrane oxygenator during cardiopulmonary bypass resulted in a leak at the venous outlet, with nearly fatal outcome. We studied the effect of three different volatile anesthetics on the polycarbonate parts of unused and used COBE CMS membrane oxygenators with 30-HRV open filtered reservoir. The polycarbonate parts were submitted to a series of test...

We found significant differences in mercury fluxes measured with a dynamic surface mercury flux chamber made of Teflon versus one made of polycarbonate. While both materials responded reasonably well when virgin materials were used, the polycarbonate chamber was found to exhibit significant chamber blanks under light after it was exposed to surface mercury fluxes of >100 ng/m2/h. Most significa...

During dialysis with cuprophane or polycarbonate filters, a fall in neutrophil and eosinophil cell counts is observed. Total complement remains unchanged, but C3a increases indicating complement activation. Release of granular granulocyte proteins is observed indicating granulocyte activation. Patient reactions or biochemical findings indicate no significant difference when polycarbonate or cup...

This Article contains typographical errors. In the Results section under subheading 'Nanotube-based compact all-fiber triple-wavelength laser sys-tem' , " The dispersion parameter of these three CFBGs is ~2.2 ps 2 /cm with the length of ~10 mm " should read: " The dispersion parameter of these three CFBGs is − 2.2 ps 2 /cm with the length of ~10 mm ". In addition, " Fig. 1(d) shows the absorpti...

Public and scientific concerns about exposure to bisphenol A (BPA) have risen in the last few years, with Canada and some U.S. states and cities banning BPA from polycarbonate baby bottles and other products sold for use by infants and children. Despite these concerns, little is known about whether the use of polycarbonate food or beverage containers actually contributes to BPA body burden in p...

bacteriorhodopsin (br) is a retinal protein that is a light-driven proton pump and has an important role in photosynthesis in archaebacterium halobacterium salinarum. the br molecule absorbs light and photochemical changes occur in it, and different intermediates will be produced in its photochemical cycle that some of them like p and q intermediates have a long half-life. there have been many ...

Public and scientific concerns about exposure to bisphenol A (BPA) have risen in the last few years, with Canada and some U.S. states and cities banning BPA from polycarbonate baby bottles and other products sold for use by infants and children. Despite these concerns, little is known about whether the use of polycarbonate food or beverage containers actually contributes to BPA body burden in p...

Bisphenol A (BPA) is a monomer with estrogenic activity that is used in the production of food packaging, dental sealants, polycarbonate plastic, and many other products. The monomer has previously been reported to hydrolyze and leach from these products under high heat and alkaline conditions, and the amount of leaching increases as a function of use. We examined whether new and used polycarbo...