Results 81 to 90 of about 110,435 (294)

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

Advanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro, Manuel J. Carvajal Loaiza, Rahaf Homssi, Vanessa Restrepo   +3 more
wiley   +1 more source

Regioselective Tele‐Substitution of Aroyl Chlorides via Activation by an Al/P Frustrated Lewis Pair

ChemistryEurope
The development of tele‐substitution reactions is significant in organic synthesis. However, most reported tele‐substitutions have been limited to nucleophilic aromatic substitution.
Hirotaka Okamoto, Yoshihiro Nishimoto, Makoto Yasuda   +2 more
doaj   +1 more source

Produce low-CO2 sustainable cement–slag binder incorporating aluminum sulfate

Developments in the Built Environment
Using slag to produce low-carbon building materials is a sustainable strategy to recycle industrial byproducts. However, with a high clinker substitution rate, the delayed early strength development of slag–cement binders severely limits their ...
Yi-Sheng Wang, Seungmin Lim, Runsheng Lin, Ki-Bong Park, Xiao-Yong Wang   +4 more
doaj   +1 more source

Kaleidoscopic Incommensurate Structures of Aluminum-Substituted Rhenium Silicides

Inorganic Chemistry
Al substitution leads to kaleidoscopic vacancy-bearing crystal structures in the rhenium silicides, ReAlxSi1.75-0.75x□0.25-0.25x (□ indicates Si/Al vacancies), including two incommensurate structures newly found and successfully solved with (3 + 1)-dimensional superspace groups in this work.
Victoria Decocq, Fei Wang
openaire   +2 more sources

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Investigation of Aluminum Substituted Single-Crystal Barium Lead Hexaferrites Ba_1-xPb_xFe_12-yAl_yO₁₉ Grown by Flux Technique

Известия высших учебных заведений России: Радиоэлектроника, 2016
Microwave properties of aluminum substituted single-crystal barium lead hexaferrites Ba1-хPbхFe12-yAlyO19 (x ≤ 0.2 and y ≤ 2.7) grown by flux technique have been investigated for the first time. It is shown that ferromagnetic resonance frequencies are in
D. A. Vinnik, A. B. Ustinov, I. A. Ustinova   +2 more
doaj  

Application Research of Quasi-monochromatic X-ray Machine Replacing 241Am Radioactive Source in Thickness Measurement

Journal of Isotopes, 2014
In the research of BS-03 thickness detector, a self-designed quasi-monochromatic (50-60 keV) X-ray machine was studied as a substitution to Am-241 low energy photon source（1.11×109 Bq）The range of output current, the attenuation of X rays through the ...
LIN Hui1;XIAO Xue-fu2;HOU Yue-xin3;ZHAO Jing1;JIAN Li-min1
doaj   +1 more source

Spin Frustration and Magnetic Exchange in Cobalt Aluminum Oxide Spinels

, 2007
We report on x-ray diffraction, magnetic susceptibility, electron- spin resonance and heat- capacity studies of Co[Al_1-xCo_x]_2O_4 for Co concentrations ...
A. H. St. C. O’Neill, A. Krimmel, A. Loidl, A. P. Ramirez, B. Büchner, G. Behr, H. A. Krug von Nidda, J. A. Mydosh, N. Tristan, P. Cossee, R. Klingeler, S. Krupička, V. Tsurkan, V. Zestrea, W. L. Roth, X. Liu   +15 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source