Results 11 to 20 of about 75,199 (267)

Catalytic polymerization of bisphenol A using a horseradish peroxidase immobilized microporous membrane reactor

Water Science and Technology, 2023
Bisphenol A (BPA) is one of the most widely used chemical products, which is discharged into rivers and oceans, posing great hazards to organisms such as reproductive toxicity, hormone imbalance and cardiopathy induction.
Haitao Li, Linfeng Guo, Yingying Li, Min Chen, Chunlu Bai, Aolei Song, Linxiu Cheng, Xueli Chen, Yonglin Chen   +8 more
doaj   +1 more source

Dynamic Recrystallization and Microstructural Evolution During Hot Deformation of Al-Cu-Mg Alloy

Metals
Isothermal hot compression tests were performed on an Al-4.8Cu-0.25Mg-0.32Mn-0.17Si alloy using a Gleeble-3500 thermomechanical simulator within the temperature range of 350–510 °C and strain rate range of 0.001–10 s−1, achieving a true strain of 0.9 ...
Fangyan He, Xiaolan Wu, Zhizheng Rong, Xueqin Zhang, Xiangyuan Xiong, Shengping Wen, Kunyuan Gao, Wu Wei, Li Rong, Hui Huang, Zuoren Nie   +10 more
doaj   +1 more source

Do Bio-Ethanol and Synthetic Ethanol Produced from Air-Captured CO₂ Have the Same Degree of “Greenness” and Relevance to “Fossil C”?

Molecules, 2022
This paper discusses the epochal change in the reputation of carbon dioxide, which is now considered as a raw material alternative to fossil C for the synthesis of chemicals, materials and fuels, as opposed to a waste material that must be confined ...
Michele Aresta
doaj   +1 more source

Spectral Control of Thermal Radiation using Rectangular Micro-Cavities on Emitter-Surface for Thermophotovoltaic Generation of Electricity

Journal of Thermal Science and Technology, 2008
Spectral control of thermal radiation emitted from rectangular micro-cavities made on a metal surface was investigated through numerical simulation and experiment.
Katsunori HANAMURA, Yuki KAMEYA
doaj   +1 more source

Enhancing Hydrogen Embrittlement Resistance of Al–Zn–Mg–Cu Alloys via Si Microalloying and Optimized Heat Treatment

Metals
7xxx series aluminum alloys are critical structural materials in aerospace applications, but their susceptibility to hydrogen embrittlement (HE) poses significant challenges to service safety and durability.
Huijun Shi, Ruian Hu, Yi Lu, Shengping Wen, Wu Wei, Xiaolan Wu, Kunyuan Gao, Hui Huang, Zuoren Nie   +8 more
doaj   +1 more source

Approaching fully equiaxial grains of Er/Zr modified selective laser melted Al–Mg–Mn alloys

Journal of Materials Research and Technology
In this study, high-strength Al-8.5Mg-0.78Mn-0.96Er-1.94Zr alloys are prepared by selective laser melting(SLM). The microstructure and mechanical properties of the Al–Mg–Mn–Er–Zr alloys in the as-built and heat-treated states are investigated.
Wu Wei, Yuyan Zhai, Jifei Hu, Jianlei Bi, Zhengjiang Gao, Jiaoxi Yang, Xiaorong Zhou, Xiaolan Wu, Shengping Wen, Hui Huang, Li Rong, Kunyuan Gao, Zuoren Nie   +12 more
doaj   +1 more source

Effects of Sn Microalloying on the Microstructure and Properties of Al-Mg-Mn-Si Alloy

Metals
Microalloying with Sn is a pivotal strategy for enhancing the strength and thermal stability of Al-Mg-Mn-Si alloys by enabling microstructural optimization.
Yue Chai, Shengping Wen, Xiaolan Wu, Kunyuan Gao, Wu Wei, Li Rong, Hui Huang, Zuoren Nie   +7 more
doaj   +1 more source

Microbial conversion of waste gases into single-cell protein [PDF]

Microbiology Australia, 2023
Climate change and food security are two of our most significant global challenges of our time. Conventional approaches for food production not only produce greenhouse gases but also require extensive land and water resources.
Chris Greening, Esteban Marcellin, Thomas Watts, Jitendra Joshi, James Heffernan, Surbhi Jain   +5 more
doaj  

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source