Results 61 to 70 of about 72,732 (289)

Microstructure Tuning and Performance Enhancement of Polystyrene Foams via Ball‐Milled Biochar–Induced Nucleation in Supercritical CO2‐Assisted Extrusion

open access: yesJournal of Applied Polymer Science, EarlyView.
Sustainable polystyrene–biochar composite foams produced by supercritical CO2 extrusion with enhanced microstructure, thermal insulation, and compressive performance. ABSTRACT Developing sustainable thermal insulation materials is critical to reducing building energy consumption and greenhouse gas emissions.
Apurv Gaidhani   +4 more
wiley   +1 more source

Dynamic characteristics and processing of fillers in polyurethane elastomers for vibration damping applications [PDF]

open access: yes, 2011
Polyurethane elastomers have the potential of being used to reduce vibrational noise in many engineering applications. The performance of the elastomer is directly related to matching the nature of the mechanical loss characteristics to the frequency and
A R Mackintosh   +5 more
core   +1 more source

Sustainable polypropylene chair: A life cycle assessment and cost analysis of industrial production

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract Due to their multiple properties, including flexibility, lightness, and strength, thermoplastics are an essential material in the development of processes at both industrial and domestic levels. However, thermoplastics are often derived from polymers synthesized using non‐renewable petroleum resources. This has environmental consequences.
Lucrezia Maggi   +4 more
wiley   +1 more source

Polypropylene/talc foams with high weight-reduction and improved surface quality fabricated by mold-opening microcellular injection molding

open access: yesJournal of Materials Research and Technology, 2021
Microcellular injection-molded part can save materials usage and reduce energy consumption. However, the part molded by conventional microcellular injection molding often encounters problems of a limited weight-reduction and poor surface quality ...
Junji Hou, Guoqun Zhao, Guilong Wang
doaj   +1 more source

Dislocation density and graphitization of diamond crystals [PDF]

open access: yes, 2002
Two sets of diamond specimens compressed at 2 GPa at temperatures varying between 1060 K and 1760 K were prepared; one in which graphitization was promoted by the presence of water and another in which graphitization of diamond was practically absent.
C. Pantea   +14 more
core   +1 more source

Effect of Ammonium Polyphosphate/Silicate Content on the Postfire Mechanics of Epoxy Glass‐Fiber Composites Using Facile Chocolate Bar‐Inspired Structures

open access: yesFire and Materials, Volume 49, Issue 3, Page 329-346, April 2025.
ABSTRACT This study investigates the postfire mechanical properties of epoxy glass‐fiber reinforced composites (EP GFRCs) using increasing concentrations of ammonium polyphosphate (APP) and inorganic silicate (InSi) to modify the char and fire residue.
Sruthi Sunder   +5 more
wiley   +1 more source

Occupational Exposure to Talc Increases the Risk of Lung Cancer: A Meta-Analysis of Occupational Cohort Studies

open access: yesCanadian Respiratory Journal, 2017
Objective. Talc is widely used in industrial applications. Previous meta-analyses of carcinogenic effects associated with inhaled talc included publications before 2004, with a lack of data in China, the largest talc-producing country.
Che-Jui Chang   +3 more
doaj   +1 more source

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

open access: yesGeological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito   +8 more
wiley   +1 more source

Thermochronologic Constraints on the Extensional History of the Ibex Hills, Southeastern Black Mountains, Death Valley, California

open access: yesGeological Journal, EarlyView.
A. Modeled T‐t paths for samples in the northern Ibex Hills, showing steady cooling throughout much of the Cenozoic, until rapid Miocene cooling. B. Weighted mean paths for each sample in this study. Note that all show a rapid cooling event at or just after 10 Ma, which is interpreted to represent exhumation as a result of regional extenstion ...
Zachariah D. Fleming
wiley   +1 more source

Chest ultrasonography to assess the kinetics and efficacy of talc pleurodesis in a model of pneumothorax: an experimental animal study

open access: yesERJ Open Research, 2018
Talc pleurodesis is used to avoid recurrences in malignant pleural effusions or pneumothorax. The lack of lung sliding detected by chest ultrasonography (CUS) after talc application is indicative of the effectiveness of pleurodesis.
Rachid Tazi-Mezalek   +10 more
doaj   +1 more source

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