نتایج جستجو برای: polyvinyl chloride pvc
تعداد نتایج: 94770 فیلتر نتایج به سال:
Gas-to-PVC In their Research Article on page 24162, Guido Zichittella and Javier Pérez-Ramírez show the outstanding performance of rare earth oxychloride catalysts for selective conversion ethane into 1,2-dichloroethane, a precursor vinyl chloride monomer. The potential use natural gas as feedstock instead coal or oil represents long sought-after advancement to bring significant cost environmen...
PURPOSE The stability of cetuximab and panitumumab in glass vials and polyvinyl chloride (PVC) bags stored at 4 degrees C for up to 14 days was studied. METHODS Sixty milliliters of cetuximab was drawn directly from a commercially available vial, and 20 mL was injected into each of three sterile, empty, 100-mL PVC bags through a preattached 0.22-microm filter. Three milliliters of panitumumab...
1. Discoloration of polyvinyl chloride (PVC) tape has been used in peatland ecological and hydrological studies as an inexpensive way to monitor changes in water-table depth and reducing conditions. 2. We investigated the relationship between depth of PVC tape discoloration and measured water-table depth at monthly time steps during the growing season within nine kettle peatlands of northern Wi...
Thrombosis and hemocyte damage are the main problems of applied non-coated biomaterials to cardiac surgery that remain unsolved. The present study is aimed at the chemical modification of polyvinyl chloride (PVC) for applications in cardiac surgery and the biological property assessment of modified PVC. Sodium alginate (SA)/heparin (HEP) composites were covalently immobilized onto the surface o...
The contribution of garbage burning (GB) emissions to chloride and PM2.5 in the Mexico City Metropolitan Area (MCMA) has been investigated for the period of 24 to 29 March during the MILAGRO-2006 campaign using the WRF-CHEM model. When the MCMA 2006 official emission inventory without biomass burning is used in the simulations, the WRF-CHEM model significantly underestimates the observed partic...
Tetra Schiff bases were used as thermal stabilizers to enhance the properties of polyvinyl chloride (PVC) when operated at high temperatures. The stability PVC films doped with was tested by weight-loss method, Fourier transform infrared (FTIR) spectroscopy, aging test, optical microscope, and atomic force microscope (AFM). Results showed that embedding these additives increased time polymer, w...
Polyvinyl chloride (PVC) has toxic effects through the induction of oxidative stress in the body and testicles. Vitamin E (Vit E) is a dietary compound that functions as an antioxidant scavenging toxic free radicals. The present study aimed to probe the protective effect of Vit E against PVC-induced reprotoxicity in male rats. In this experimental study, 24 male rats were randomly divided into ...
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