objectives: the aim of this study was to assess and compare the water sorption and flexural strength of thermoplastic and conventional acrylic resins. materials and methods: water sorption and flexural strength were compared between a thermoplastic modified polymethyl methacrylate (pmma) denture base resin (group a) and a heat-polymerized pmma acrylic resin (group b) as the control group (n=10)...

TThis study investigated the water absorption of chitosan, collagen, and chitosan/collagen blend membranes exposed to gamma-ray irradiation. These membranes were produced via the solvent evaporation method. All membranes then underwent irradiation at 15 or 25 kGy gamma-ray doses, while membranes without irradiation were used as controls. After immersing the membranes in distilled water for up t...

Mercury has long been recognised as a neurotoxin element for many decades and with its compounds being extremely toxic, is ranked third in the ‘priority list of hazardous substance’ by the United States comprehensive environmental response, compensation, and liability act. In different samples, mercury can exist as either its inorganic or organic forms and this paper will review the methods for...

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This research investigated the role of silica on palm kernel shell (PKS) as friction lining materials in automotive brake pad production. The were crushed, milled and sieved into four different particle sizes 100, 150, 200 350 µm. formulations weight percentages employed included Resin (20%), steel slag (15%) carbon black (5%) while varied for each size. Individual formulation was mixed about 1...

mitigate the negative effects and increase the benefits of water depletion on society. Currently, water professionals do not have a common framework that links hydrological flows to user groups of water and their benefits. The absence of a standard hydrological and water management summary is causing confusion and wrong decisions. The non-availability of water flow data is one of the underpinni...

In recent years, the production and consumption of thermally modified wood (TMW) has been increasing. Offcuts other waste generated during TMWs processing into products, as well already disposed products based on can be an input recycled raw material for particleboards (PBs). a laboratory, 16 mm thick 3-layer PBs bonded with urea-formaldehyde (UF) resin were produced at 5.8 MPa, 240 °C 8 s pres...

The high demand for wood-based composites generates a greater use of wood adhesives. current industrial challenge is to develop modified synthetic adhesives remove harmful formaldehyde, and test natural scope the research included manufacturing high-density fiberboards (HDF) using binders such as polylactic acid (PLA), polycaprolactone (PCL), thermoplastic starch (TPS) with different resination...

In this investigation, total body water (TBW) in ten chronic peritoneal dialysis patients was studied by deuterium (TBW-2H), skinfold thickness (TBW-ST), Watson formula (TBW-WA), 58% of body weight (TBW-58%), and bioelectrical impedance (TBW-BIA), and these results were compared with the reference oxygen18 (TBW-18O) method. We also analyzed the fat-free mass (FFM) by skinfold thickness (FFM-ST)...

In this study, it was found that the addition of wood had a reducing effect on water absorption (WA) and thickness swelling (TS) properties in gypsum-based boards. The lowest WA value 41.56% sample prepared with cedrus’s bark/needle mixture (KaI3; 3:2 by weight). It has also been realized experimental boards made only bark-gypsum (SKa6), cone-gypsum (SKo6) needle-gypsum (SI6) proportions show T...