Results 41 to 50 of about 68,046 (314)

Performance of alkali-activated slag concrete [PDF]

open access: yes, 2002
The environmental concerns related to the production of cement in terms of the energy consumption and the emission of CO2 lead to the search for more environmentally viable alternatives to cement.
Al-Otaibi, Saud
core  

Effects of Basic Slag, Aggregate Size and Groundwater Treatments on the Production of Chilli in Acid Sulfate Soils in a Simulation Study

open access: yes, 2008
A simulation study was conducted to evaluate the effects of basic slag (BS10 and BS20: basic slag 10 and 20 t ha-1), aggregate size (A20 and A30: aggregate sizes of soil, less than 20 and 20-30 mm) and groundwater depth (Gw0: no influence of groundwater ...
Blume, Hans-Peter   +3 more
core   +1 more source

Mineral carbonation from metal wastes: Effect of solid to liquid ratio on the efficiency and characterization of carbonated products [PDF]

open access: yes, 2014
Mineral carbonation technologies aim at permanently storing CO2 into materials rich in metal oxides. A multi-step mineralization process employing Ca-rich waste streams to precipitate calcium carbonate is investigated in this paper.
Dri, Marco   +4 more
core   +1 more source

Effect of fly ash to slag ratio and Na2O content on leaching behaviour of fly Ash/Slag based alkali activated materials

open access: yes, 2023
Alkali–activated materials (AAMs) with variable levels of activator and precursor loading were evaluated for their long–term leaching behaviour. On a series of fly ash (FA)/slag–based binder mixes containing varying amounts of slag (0 – 30 wt%) and Na2O (
Zhang, Zuhua   +7 more
core   +1 more source

Distinct Neuropsychiatric Profiles Associated With 17p11.2 Deletions and RAI1 Variants in Smith–Magenis Syndrome

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Smith–Magenis syndrome (SMS) results from either a recurrent 17p11.2 deletion or pathogenic variants in the retinoic acid induced 1 gene (RAI1). While neurodevelopmental impairment and behavioral dysregulation are well recognized, systematic genotype‐stratified analyses across psychiatric domains remain limited.
Albin Blanc   +7 more
wiley   +1 more source

Thermodynamic database for multicomponent oxide systems

open access: yesChimica Techno Acta, 2018
A state-of-the-art thermodynamic database has been developed for multicomponent oxide systems. It can be used in combination with FactSage software to calculate the properties of metallurgical slags, glasses, ceramics, refractories, minerals, cements ...
S. A. Decterov
doaj   +1 more source

Pengukuran fraksi leaching radionuklida alami 228Th dan 226ra dalam Tin Slag dan Copper slag [PDF]

open access: yes, 2006
Penggunaan material sandblasting berupa tin slag dan copper slag berpotensi memberikan dampak radiologi berupa paparan radiasi eksternal maupun internal dari TENORM yang terkandung dalam material tersebut. Pengelolaan limbah sandblasting yang tidak tepat
Asrul, Rika Tiananda
core  

Potential contribution of steel slag fillers to asphalt mastic in terms of microwave heating efficiency, electromagnetic mechanisms and fatigue durability

open access: yes, 2023
This paper investigates the potential contribution mechanisms of steel slag fillers in asphalt mastic, covering asphalt-filler interaction mechanisms, microwave heating efficiency, electromagnetic absorption mechanisms, and fatigue durability.
Riran Wang   +17 more
core   +1 more source

Asymmetrische α‐Alkylierung mit aktivierten und unaktivierten Elektrophilen durch einen hocheffizienten und rezyklierbaren Lewis‐Säure/Imidazolium‐Katalysator

open access: yesAngewandte Chemie, EarlyView.
Ein luftstabiler, einfach herzustellender bifunktioneller Cu(II)/Imidazolium‐Komplex ermöglicht hoch enantioselektive α‐Alkylierungen von 1,3‐Dicarbonylverbindungen mit herausragender Produktivität (TON bis zu 1740). Zu den hervorzuhebenden Merkmalen zählen ein breites Elektrophilspektrum, das sowohl π‐aktivierte als auch nicht aktivierte Reagenzien ...
Johanna Haußmann   +8 more
wiley   +1 more source

Ultrafast preparation of dense textured ZrB2-based ceramics via heavy continuous DC Joule heating and pressing

open access: yesJournal of Advanced Ceramics
The preparation of dense ZrB2-based ceramics typically requires high temperatures and long sintering time, which often result in significant grain coarsening and thus deterioration of mechanical properties. Ultrafast sintering techniques offer a solution
Yingjun Liu   +12 more
doaj   +1 more source

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