Results 191 to 200 of about 43,072 (255)

Synergistic Advanced Oxidation and Physicochemical Treatment Strategies for Antibiotic Removal and Resistance Mitigation in Water

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The presence of antibiotics in water not only causes environmental pollution but also increases the growth of antibiotic‐resistant bacterial genes, which pose serious threats to human beings and other water residents. Large numbers of people are reportedly affected by the resistant bacterial genes, as many broad‐spectrum antibiotics are not ...
Amir Zada, Shohreh Azizi
wiley   +1 more source

Synthesis of a Novel Amine‐Based Curing Agent for Epoxy Resins Derived From Vanillin

Journal of Applied Polymer Science, EarlyView.
The four‐step synthesis of a new bio‐based amine hardener is described starting from vanillin as a bio‐based compound. The hardener ADBA was utilized to cure DGEBA and the resulting Tg,tanδmax was determined via DMA. Compared to other bio‐based curing agents, our curing agent is obtainable in a high yield and leads to a superior Tg of 135°C.
Bastian Hahn, Gerd Wehnert, Elisabeth Schamel, Dominik Söthje   +3 more
wiley   +1 more source

Porous Poly(ε‐Caprolactone)/Keratin Composite Scaffolds: Structural Features, Degradation Behavior and Cell‐Material Interactions

Journal of Applied Polymer Science, EarlyView.
ABSTRACT Porous scaffolds based on pure poly(ε‐caprolactone) (PCL) and on biocomposite made of PCL and feather‐extracted β‐keratin (FK) were fabricated by salt‐leaching method. FK was incorporated into PCL to address the limited bioactivity and hydrophobic nature of PCL, with the aim of improving cell–material interactions for bone tissue engineering ...
Gianluca Rinaldi, Nancy Ferrentino, Martina Mucciolo, Valentina Sessini, Marina Paolucci, Elena Coccia, Daniela Pappalardo   +6 more
wiley   +1 more source

Heat Stress and Gut Microbiome Dynamics in Poultry: Interplay, Consequences, and Mitigation Strategies

Animal Research and One Health, EarlyView.
Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke, A. I. Oni, O. A. Akosile, K. M. Oliyide, C. A. Ishola, M. O. Logunleko, O. A. Jimoh, C. P. Njoku, L. O. Fasasi, V. A. Uyanga   +9 more
wiley   +1 more source

Dietary Glutamine Supplementation Alleviated Rumen Epithelium Oxidative Damage and Apoptosis Induced by Feed Restriction via Maintaining Mitochondrial Homeostasis in Female Yaks

Animal Research and One Health, EarlyView.
Dietary glutamine (Gln) supplementation increased the ATP levels and promoted cell proliferation in the rumen epithelium of feed‐restricted yaks. Besides, Gln inhibited ROS accumulation and reduced oxidative damage and apoptosis in the rumen epithelium of feed‐restricted yaks.
Ziqi Yue, Shanpeng Ke, Liyuan Shi, Rui Hu, Zhisheng Wang, Quanhui Peng, Huawei Zou, Jianxin Xiao, Yahui Jiang, Fali Wu, Yiping Tang   +10 more
wiley   +1 more source

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“Sulfate attack,” or is it?

Cement and Concrete Research, 1999
Abstract Studies of, and articles on, sulfate attack have frequently assumed that this destructive mechanism simply involves the production of ettringite or gypsum. The complexity of “sulfate attack,” and of mechanisms masquerading as sulfate attack, are detailed.
William G Hime
exaly   +2 more sources

Sulfate attack research — whither now?

Cement and Concrete Research, 2001
Sulfate attack research is at a critical stage. In spite of meaningful advances in the past few years, this problem is still not well understood. Due to its complicated mechanism, the reaction between cement hydration products and sulfate-bearing solutions manifests itself in a variety of ways.
Jan Olek, Menashi D Cohen
exaly   +2 more sources

The confused world of sulfate attack on concrete

Cement and Concrete Research, 2004
Abstract External sulfate attack is not completely understood. Part I identifies the issues involved, pointing out disagreements, and distinguishes between the mere occurrence of chemical reactions of sulfates with hydrated cement paste and the damage or deterioration of concrete; only the latter are taken to represent sulfate attack.
exaly   +2 more sources

Sulfate Attack on Blended Portland Cements

SP-192: 2000 Canmet/ACI Conference on Durability of Concrete, 2000
Paste and mortar specimens were manufactured by using ordinary portland cement (OPC), C3A-free portland cement, slag cement and pozzolan cement. A carbonaceous or siliceous filler (10% by cement weight) was blended with each of the above portland cements. Limestone or quartz sands were used for mortar mixtures.
Borsoi, Antonio, Collepardi, Silvia, Coppola, Luigi, Troli, Roberto, Collepardi, Mario   +4 more
openaire   +1 more source

Sulfate Attack of Concrete

2012
Cements have long been known to undergo deterioration in sulfate-rich service environments. Yet the mechanism of attack has not been universally agreed and, arguably of even greater importance, test procedures to measure sulfate attack and specifications for sulfate-resistant formulations are not agreed, or are disputed.
Esperanza Menéndez, Thomas Matschei, Fredrik P. Glasser   +2 more
openaire   +1 more source