Results 81 to 90 of about 48,997 (276)
Ultrafine portland cement performance
Materiales de Construccion, 2018 By mixing several binder materials and additions with different degrees of fineness, the packing density of the final product may be improved. In this work, ultrafine cement and silica fume mixes were studied to optimize the properties of cement-based ...
C. Argiz, E. Reyes, A. Moragues
doaj +1 more source
, 2016 In complex materials, numerous intertwined phenomena underlie the overall response at macroscale. These phenomena can pertain to different engineering fields (mechanical , chemical, electrical), occur at different scales, can appear as uncertain, and are
Adnan Ibrahimbegovic +25 more
core +3 more sources
American Journal of Industrial Medicine, EarlyView.ABSTRACT We evaluated 12 workers with documented exposure to respirable crystalline silica who were referred to a tertiary care center due to clinical suspicion of silicosis, sarcoidosis, or silicosarcoidosis. Although silica exposure is a well‐established risk factor for silicosis and has been associated with autoimmune diseases, mycobacterial ...
Guilherme Ward Leite +9 more
wiley +1 more source
Advanced NanoBiomed Research, EarlyView.This review highlights how autoimmune diseases arise from intertwined immunological, genetic, and environmental factors, emphasizing gut microbiota dysbiosis as a pivotal driver. It outlines emerging nanotechnology‐based strategies—such as liposomes, hydrogels, and polymeric nanoparticles—that enhance targeted drug delivery, minimize systemic toxicity,
Md. Meraj Ansari +5 more
wiley +1 more source
Carbonation of filler typed self-compacting concrete and its impact on the microstructure by utilization of 100% CO2 accelerating techniques [PDF]
, 2013 Via the use of accelerated carbonation techniques with 100% CO2 concentration, an experimental programme was performed to investigate the carbonation and associated microstructural changes of three different self-compacting concrete (SCC) in which some ...
Al-Kadhimi +24 more
core +2 more sources
High-Power Fiber Laser Cutting for 50-mm-Thick Cement-Based Materials [PDF]
, 2020 This experimental research highlights the applicability of laser cutting to cement-based materials using multimode fiber lasers. A 9 kW multimode fiber laser is used, and the experimental variables are the water-to-cement ratio, laser speed, and material
Lee, Dongkyoung +2 more
core +1 more source
Angewandte Chemie International Edition, EarlyView.We demonstrate here the transformation of NBR (Nitrile butadiene rubber) including post‐consumer waste sourced from nitrile gloves and o‐rings into polyamines and polyols via ruthenium catalyzed hydrogenation. ABSTRACT We report here two new approaches for the chemical recycling/upcycling of nitrile butadiene rubber (NBR) to make either polyamines or ...
Alejandra Sophia Lozano Perez +7 more
wiley +1 more source
Behaviour of reinforced concrete beam with silica fume under dynamic loading / Rudy Tawie Joseph Sipi [PDF]
, 1999 Concrete mixes design to produce 42 N/mm² - 84 M/mm² in compressive strength are easily obtainable today with silica fume replacing a portion of the cement content.
Rudy Tawie Joseph Sipi
core
Combined effect of silica fume and steel fibers on the impact resistance and mechanical properties of concrete [PDF]
, 2010 This study investigated the impact resistance and mechanical properties of steel fiber-reinforced concrete with water-cement ratios of 0.46 and 0.36, with and without the addition of silica fume.
Afroughsabet, V., Nili, Mahmoud
core +1 more source
Arthritis &Rheumatology, EarlyView.Objective Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by joint pain, swelling, and stiffness. Although smoking is a well‐established risk factor for RA, the role of occupational inhalants in RA development is less well recognized.
Qianwen Liu +7 more
wiley +1 more source