نتایج جستجو برای: pvc pipe
تعداد نتایج: 20569 فیلتر نتایج به سال:
Introduction: Musculoskeletal disorders are prevalent in work environments. Performing programs to identify and control the risk factors for musculoskeletal disorders and to carry out corrective actions to improve working conditions is important because of the impact on the health of the workforce.Methods: In this study, the presence of various shifts in the operating rooms and the training and...
Poly(vinyl chloride) resins are produced by four basic processes: suspension, emulsion, bulk and solution polymerization. PVC suspensions resins are usually relatively dust-free and granular with varying degrees of particle porosity. PVC emulsion resins are small particle powders containing very little free monomer. Bulk PVC resins are similar to suspension PVC resins, though the particles tend...
The ZnO sol well-crystallized was prepared by the sol-gel method. The ZnO films were coated on medical-grade PVC surface by the improved organic-inorganic interfacial adhesion method. The physical and photocatalytic properties of the samples were characterized by XRD, SEM, DRS spectra and measured by the photodegradation reaction of Rhodamine B (RhB) and anti-bacteria for Escherichia coli (E. c...
This community service focuses on equipping assisted subjects with knowledge about the use of PVC pipe waste in environment. program is an actualization collaboration that has existed between Yudharta University Pasuruan and Madrasah Aliyah Syamsul Arifin Kraton Pasuruan. mentoring uses a learning approach through three stages including preparation, service, reflection stages. The impact this c...
A novel application of photocatalysis was investigated to reduce diurnal evaporative fuel vapor emissions from automobiles. light-weight annulus photocatalytic device designed, fabricated, and characterized for its performance the oxidation emissions. The prototype made with PVC pipe ultraviolet (λ = 365 nm) light emitting diodes (UV LEDs) as sources. Commercially available Evonik P25 TiO2 used...
A study was carried out to characterize Ni-Co-PVC and Ni-Cu-PVC composite materials prepared by mechanical alloying technique (MAT) using SEM, EDS and electrochemical test. Composite materials were prepared by mixing together 95% of metal powder (Ni+Co or Ni+Cu) with 5% PVC. PVC was used as a binder and tetrahydrofuran (THF) was used as a solvent in composite material preparation. Based on the ...
Poly(vinyl chloride) (PVC) is a complex plastic system. Individual components of the PVC system, including residual vinyl chloride monomer (RVCM) and certain additives, may pose risks of harm to human health. There have been significant reductions in the RVCM content of PVC resin since 1974, reducing the cancer risk of workers in PVC fabrication plants and consumers of PVC products. A "no-effec...
The aim of this study was to validate in vivo the accuracy of a reconstruction-based partial volume correction (PVC), which takes into account the point spread function of the imaging system. The NEMA NU2 Image Quality phantom and five healthy volunteers (using [(11)C]flumazenil) were scanned on both HR+ and high-resolution research tomograph (HRRT) scanners. HR+ data were reconstructed using n...
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