Results 161 to 170 of about 36,123 (237)

Assessing Walkability for Parents With Strollers: Challenges and Recommendations for Sustainable Urban Design

open access: yesChildren &Society, EarlyView.
ABSTRACT The significance of walkability in creating sustainable and livable cities cannot be overstated. However, the majority of cities in Turkey still struggle to meet the needs of vulnerable populations, particularly parents with children aged 0–6, in terms of walkability.
Hatice Cobankaya   +3 more
wiley   +1 more source

Pathways to more inclusive and effective black rhino conservation: Insights from a decade of design and delivery in NW Namibia

open access: yesConservation Science and Practice, EarlyView.
We present a synthesis of learnings from more than a decade of designing, delivering, evaluating, and improving community‐based ranger programs in northwest Namibia. We illustrate how harnessing the values of key participant groups in program design led to delivering measurable intermediate results along pathways of engaging local leadership ...
J. R. Muntifering   +8 more
wiley   +1 more source

Problems and Solutions when Quantifying Nitrogen in Silicate and Oxide Minerals and Glasses Using Electron Probe Microanalysis

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points The challenges of quantifying nitrogen in silicates by EPMA are explained and assessed. Using a set of known and newly synthesised reference materials, we demonstrate a method for obtaining accurate nitrogen mass fractions in most samples.
Eleanor R. Mare   +8 more
wiley   +1 more source

Improved Precision and Reference Materials for Stable Carbon Isotope Measurement in Basaltic Glasses using Secondary Ion Mass Spectrometry

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points High‐precision measurement results for δ13C in basaltic glasses were achieved down to 25 μg g‐1 CO2 using a refined measurement procedure via large‐geometry SIMS. Three new hydrous basaltic glasses (ETNA24, ETNA32, ETNA36) were established as reference materials.
Joshua Shea   +14 more
wiley   +1 more source

Metakaolin‐based geopolymer mineral particulate composite design for higher strength and thermal stability

open access: yesInternational Journal of Applied Ceramic Technology, EarlyView.
Abstract This research targets to produce new composites from a highly reactive metakaolin‐based geopolymer matrix reinforced with natural particles for use in sustainable ceramics, building and construction. Commercial waterglass and added mineral particles were optimized for geopolymer composites to provide higher strength, stability, and durability.
Ruy A. Sa Ribeiro   +5 more
wiley   +1 more source

Strength and thermal stability of enhanced metakaolin‐based geopolymer composites with sand and fibers

open access: yesInternational Journal of Applied Ceramic Technology, EarlyView.
Abstract The growing demand for sustainable materials in construction and ceramics has driven interest in geopolymer technology as an eco‐friendly alternative to traditional cement‐based systems. Geopolymers, synthesized from aluminosilicate precursors like metakaolin, offer high mechanical performance, chemical resistance, and lower carbon footprints.
Ruy A. Sa Ribeiro   +5 more
wiley   +1 more source

Sodium‐based, geopolymer foamed composites reinforced with phosphate mine waste particulates and hemp/basalt fibers

open access: yesJournal of the American Ceramic Society, EarlyView.
Abstract This study investigated the mechanical, microstructural, and thermal properties of Na‐based geopolymer foams (GPFs) reinforced with varying amounts of two types of reinforcements: raw phosphate mine waste rock (PMWR) as a particulate filler, and natural (hemp) or synthetic (basalt) fibers.
Sanae Sbi   +6 more
wiley   +1 more source

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