Results 241 to 250 of about 313,410 (304)

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao, Xiaolong Wang, Xiao Chen, Dong Liu, Zhenhui Kang, Cheng Zhu   +5 more
wiley   +1 more source

Boosting Zinc‐Ion Hybrid Capacitors with Mesoporous Carbon Derived from Highly Graphitized Carbon Quantum Dots

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The work presents an innovative method for the preparation of mesoporous carbon materials (MCs) from highly graphitized carbon quantum dots. The zinc‐ion hybrid capacitors assembled with MCs deliver high rate performance and stability, providing promising advancements for future energy storage solutions.
Guoli Zhang, Huihui Li, Kaiyue Wang, Gang Li, Kaixi Li, Taotao Guan, Kaiying Wang   +6 more
wiley   +1 more source

3D-Printed Lattice Structures for Sound Absorption: Current Progress, Mechanisms and Models, Structural-Property Relationships, and Future Outlook. [PDF]

Adv Sci (Weinh)
Li X, Chua JW, Yu X, Li Z, Zhao M, Wang Z, Zhai W.   +6 more
europepmc   +1 more source

Elementary Steps of Energy Conversion in Strongly Correlated Systems: Beyond Single Quasiparticles and Rigid Bands

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This article reviews the fundamental consequences of strong correlations on excitations and elementary steps of energy conversion leading to new opportunities to control energy conversion. Examples include friction at surfaces, thermal transport, and photovoltaic energy conversion.
Vasily Moshnyaga, Peter E. Blöchl, Vitaly Bruchmann‐Bamberg, Annika Dehning, Lukas Allen‐Rump, Christopher Hausmann, Matthias Krüger, Amrith Rathnakaran, Sangeeta Rajpurohit, Daniel Steil, Christoph Flathmann, Jörg Hoffmann, Michael Seibt, Cynthia Volkert, Christian Jooss   +14 more
wiley   +1 more source

Near-perfect sound absorption using hybrid resonance between subwavelength Helmholtz resonators with non-uniformly partitioned cavities. [PDF]

Sci Rep
Choi E, Jeon W.
europepmc   +1 more source

New Composites Derived from the Natural Fiber Polymers of Discarded Date Palm Surface and Pineapple Leaf Fibers for Thermal Insulation and Sound Absorption. [PDF]

Polymers (Basel)
Ali M, Al-Suhaibani Z, Almuzaiqer R, Albahbooh A, Al-Salem K, Nuhait A.   +5 more
europepmc   +1 more source

Sound absorption in solids

, 1956
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Absorption of Sound in Insulators

Physical Review, 1961
The theory of sound attenuation in structurally perfect dielectric crystals is extended and applied to recent experiments on the absorption of acoustic waves in crystalline quartz at frequencies from ${10}^{9}$ cps to 2.4\ifmmode\times\else\texttimes\fi{}${10}^{10}$ cps.
Woodruff, T. O., Ehrenreich, H.
openaire   +1 more source

Paramagnetic absorption of sound

Uspekhi Fizicheskih Nauk, 1961
1. Introduction 880 2. Resonant paramagnetic absorption of sound 881 3. Crystals containing ions of the iron group 881 4. Ions with an effective spin S' > 1/2 883 5. Effect on Ni2+ ions in an MgO crystal 885 6. Ions with effective spin S' = 1/2 886 7. Crystals containing ions of the rare earth elements 886 8.
S A Al'tshuler, Boris I Kochelaev, A M Leushin   +2 more
openaire   +1 more source

Absorption of Sound by Sound

The Journal of the Acoustical Society of America, 1973
The exact solution for first order nonlinear scattering of two plane waves of sound [J. Acoust. Soc. Amer. 29, 934 0957)] showed the scattered density to be ρs = c0−2E12+12ω1−1ω2−1(cosθ+12Λ)[sin−2(12θ)]∇2W12. The singularity at θ = 0, which occurs when the primary waves are collinear, may be removed by applying to this solution the operator {1 − exp[(|∂
openaire   +1 more source