Results 81 to 90 of about 1,297,074 (297)

Energy and circular transition of the industrial heritage – The Ex SNIA case in Rome

Agathón
The paper presents the outcomes of research activities focused on disused industrial heritage sites understood as a strategic resource for the energy and circular transition, through the adoption of regenerative actions capable of triggering new ...
Serena Baiani, Paola Altamura, Gaia Turchetti, Giada Romano   +3 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Negative refractive index due to chirality

, 2009
We demonstrate experimentally and numerically that metamaterials based on bilayer cross wires give giant optical activity, circular dichroism, and negative refractive index.
Bingnan Wang, Costas M. Soukoulis, J. A. Kong, J. D. Jackson, Jianfeng Dong, Jiangfeng Zhou, Maria Kafesaki, Thomas Koschny   +7 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Research Status and Development Trend of Non-circular Gears

Jixie chuandong, 2023
Non-circular gear transmission is a new type of mechanical transmission mechanism relative to circular gear transmission, which can realize special movement, improve mechanism performance and improve mechanism motion conditions.
Wu Song, Zhang Xiangjun, Fu Xuezhong, Huang Yuanxing, Li Jingzhen   +4 more
doaj   +2 more sources

Generic composite flywheel designs [PDF]

, 1984
Fiber reinforced composites belong to a new class of materials and allow great flexibility in flywheel design. The most efficient flywheel may no longer have the classic Stodola taper and indeed, may not even be round.
Steele, R. S.
core   +1 more source

Circular Design and Consumer Involvement in Circular Economy [PDF]

Studia Commercialia Bratislavensia, 2020
Abstract The circular economy is an approach to help reduce global sustainability pressures. In circular economy it is important to involve design from the beginning of the product lifecycle, including product ideation and material selection. Involvement of consumers and users into circular economy is very important and enables change in
openaire   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Going circular with what we wear and how we build: parallelisms between the Dutch and French catwalks of fashion and construction

Frontiers in Sustainability
Responding to the call for circular transition, the Dutch and French governments aspire to achieve a fully circular economy by developing a transitional agenda in various sectors, including fashion and construction. The two countries are among the top 10
Norman Dytianquin, Simon Paindavoine, Simon Paindavoine, Nikos Kalogeras, Nikos Kalogeras   +4 more
doaj   +1 more source

Omnidirectional refractive devices for flexural waves based on graded phononic crystals

, 2014
Different omnidirectional refractive devices for flexural waves in thin plates are proposed and numerically analyzed. Their realization is explained by means phononic crystal plates, where a previously developed homogenization theory is employed for the ...
Djafari-Rouhani, Bahram, Pennec, Yan, Torrent, Daniel   +2 more
core   +1 more source