Results 91 to 100 of about 17,441 (312)

Integrating waste valorization into engineering education: Experiential learning with powdered banana peel as a sustainable cementitious materials

Next Materials
Global cement production contributes about 7% of CO2 emissions, underscoring the need for sustainable alternatives. This study investigates the feasibility of using powdered banana peel (PBP), an abundant agricultural waste, as a supplementary ...
Thomas Tawiah Baah, Macie Balkan, Kenadee Carruthers, Sung Eun Jung, Hee-Jeong Kim   +4 more
doaj   +1 more source

Sustainable Concrete for the 21st Century Concept of Strength through Durability [PDF]

, 2008
The world is passing through difficult and troubled times, and we live in a rapidly changing world. The construction industry is facing many challenges – global warming, climate change forces, and the capability to achieve sustainable development and ...
Swamy, R.N.
core  

ALKBH3 m1A Demethylase Deficiency Reduces Alzheimer's Amyloid‐β Pathology

Advanced Science, EarlyView.
This study identifies that ALKBH3‐driven m1A demethylation orchestrates Alzheimer's disease progression by disrupting mitochondrial and synaptic homeostasis. This epitranscriptomic mechanism suppresses PINK1‐mediated mitophagy via m1A erasure, leading to mitochondrial dysfunction, oxidative stress, elevated Aβ production, and impaired microglial ...
Yueyang Li, Sifei Yu, Kaidong Lu, Yujie Zhang, Mingjie Dong, Yan Peng, Liang Xue, Waleed Alam, Yuxuan Shui, Yi Zhou, Wuyunhan Ma, Meng Bao, Peiming Li, Peiyi Luo, Tiezhan Lu, Jiajia Li, Kang Zhang, Yuying Wang, Shuchen Yang, Nuoya Yin, Francesco Faiola, Zilong Gao, Jingfeng Zhou, Fei Zhao, Yali He, Magdalena J. Koziol   +25 more
wiley   +1 more source

Recycled concrete fines as a supplementary cementitious material: Mechanical performances, hydration, and microstructures in cementitious systems

Case Studies in Construction Materials
Using recycled concrete fines (RFs) as a supplementary cementitious material in blended cement systems offers potential benefits for the construction industry.
Jun Li, Xin Deng, Zhongyuan Lu, Xiaoying Li, Li Hou, Jun Jiang, Fengyuan Yang, Junjin Zhang, Kewen He   +8 more
doaj   +1 more source

Dorsal Raphe VIP Neurons Are Critical for Survival‐Oriented Vigilance

Advanced Science, EarlyView.
DRNVIP neurons in mice and primates are strategically positioned to influence the central extended amygdala via feedback loops. They regulate the excitability of PKC‐δ neurons in the ovBNST and CeA through glutamate release. Their ablation heightens activity in these regions, disrupts active‐phase sleep architecture, enhances risk assessment behaviors ...
Adriane Guillaumin, Emma Perrot, Thibault Dhellemmes, Laura Boi, Daniel De Castro Medeiros, Christelle Glangetas, Sylvie Dumas, Sandra Dovero, Nathalie Biendon, Elodie Ladeveze, Maëlle Hardel, Marc Landry, Erwan Bezard, Jérôme Baufreton, Gilberto Fisone, François Georges   +15 more
wiley   +1 more source

Al-anodizing waste as a supplementary cementitious material for 3D-printed Portland cement

Waste Management Bulletin
This study investigates the use of Al-anodizing waste (AAW), a byproduct of the anodizing process for aluminum and its alloys, in cement composites designed for 3D printing applications.
Jairon Gomes da Silveira Júnior, Rafael Dors Sakata, Lucas Onghero, Paulo Ricardo de Matos, Erich David Rodríguez, Lisandro Simão, Antonio Pedro Novaes de Oliveira, Ruan Carlos de Araújo Moura, Carlos Eduardo Maduro de Campos, José Renato de Castro Pessôa, Marcelo Tramontin Souza   +10 more
doaj   +1 more source

Compressive Strength of Corn Stalk Ash as Supplementary Cementitious Material in Mortar [PDF]

E3S Web of Conferences
The availability of agricultural wastes, especially corn stalks, offers sustainability benefits in reducing the demand for cement production. Altering this waste into ash becomes significant for cementitious material.
Sulaiman Lusman, Ramadhan R. M. Ernadi, Islami Rizky Citra   +2 more
doaj   +1 more source

DEVELOPMENT ULTRA-HIGH STRENGTH CEMENTITIOUS CHARACTERISTICS USING SUPPLEMENTARY CEMENTITIOUS MATERIALS

Journal of Engineering Science, 2021
For sustainability purposes, supplementary cementitious materials (SCMs) are considered essential components for gaining ultra-high strength properties of concrete and mortar. This study experimentally investigates the influence of single, binary, and ternary partial cement replacements of the SCMs on the performance of ultra-high-strength mortar.
openaire   +1 more source

Scalable Electrochemical Concrete Fabrication and Closed‐Loop Recycling

Advanced Science, EarlyView.
The electrochemical‐driven recycling strategy establishes a reversible concrete material flow by extracting Ca, Si, Al, and Fe from concrete waste and regenerating functional feedstocks. These reversed products are reassembled into new concrete, which re‐enters service and ultimately returns to waste, enabling a closed‐loop, waste‐origin, and low ...
Hanxiong Lyu, Zhenlin Li, Yang Liu, Lu Zhu, Lucen Hao, Mingxin Shi, Shipeng Zhang, Chi Sun Poon   +7 more
wiley   +1 more source

Dealuminated Metakaolin in Supplementary Cementitious Material and Alkali-Activated Systems: A Review

Applied Sciences
This paper presents a comprehensive review of dealuminated metakaolin (DK), a hazardous industrial by-product generated by the aluminium sulphate (alum) industry and evaluates its potential as a component in cementitious systems for the partial or full ...
Mostafa Elsebaei, Maria Mavroulidou, Amany Micheal, Maria Astrid Centeno, Rabee Shamass, Ottavia Rispoli   +5 more
doaj   +1 more source