Results 111 to 120 of about 4,042,642 (282)

Recent Advances in Carbon Cathode Materials toward High‐Performing Zinc‐Ion Hybrid Supercapacitors

Advanced Science, EarlyView.
Aqueous zinc‐ion hybrid supercapacitors (ZHSCs) have emerged as promising next‐generation electrochemical energy‐storage devices. Porous carbon materials have been extensively studied as cathodes, with advances in tailoring pore structures and material properties to enhance performance.
Take Hirooka, Zhaolin Liu, Ivan P. Parkin, Guanjie He   +3 more
wiley   +1 more source

Enzyme activity below the dynamical transition at 220K [PDF]

, 1998
Enzyme activity requires the activation of anharmonic motions, such as jumps between potential energy wells. However, in general, the forms and time scales of the functionally important anharmonic dynamics coupled to motion along the reaction coordinate ...
Smith, Jeremy C., Ferrand, Michel, Finney, John L., Dunn, Rachel, Hery, Stephanie, Dunn, Rachel V., Daniel, Roy M., Ferrand M, Daniel RM, Finney J L, Dunn R, Hery S, Smith JC   +12 more
core   +1 more source

Halide Perovskite: A Rich Source of Thermal Insulator

Advanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye, Bangzhi Ge, Yuan Yu, Chongjian Zhou   +3 more
wiley   +1 more source

Plaid‐Like Spin Splitting and Chirality of Magnon Bands in Antiferromagnetic MnTe2

Advanced Science, EarlyView.
Helicity‐ and angle‐resolved Raman spectroscopy reveals chiral magnons in the non‐coplanar antiferromagnet MnTe 2. Combined with first‐principles calculations and spin‐wave theory, the results establish its altermagnetic character through circular Raman dichroism, reduced rotational symmetry, and a distinctive plaid‐like momentum‐space magnon spin ...
Dirk Wulferding, Daehyeon An, Jiwon Choi, Dongmin Moon, Youngsu Choi, Sivasakthi Kuppusamy, Sritharan Krishnamoorthi, Raman Sankar, Myung Joon Han, Se Kwon Kim, Kwang‐Yong Choi   +10 more
wiley   +1 more source

Temperature dependent crystallization of amorphous Y67Fe33 studied using kinetic small angle neutron scattering [PDF]

Temperature-resolved small angle neutron scattering (SANS) has been used to study the nucleation, growth kinetics and crystallite morphology in the Y–Fe system.
Kilcoyne, Susan H., Al-Jawad, Maisoon, Al-Jawad, M, Kilcoyne, SH   +3 more
core   +1 more source

Optimising neutron production from compact low energy accelerators [PDF]

, 2012
There is currently much development in accelerator based methods to provide flexible and reliable neutron generators, in response to a decline in the availability of nuclear reactors.
Cywinski, Robert, Bungau, Adriana, Edgecock, R., Ratcliffe, N, Barlow, Roger   +4 more
core   +2 more sources

Development of a Cryogenic Load Frame for In Situ Neutron Diffraction

Quantum Beam Science
In recent years, an increasing number of national major projects have focused on the physicochemical properties of materials and the structural integrity of components in cryogenic environments.
Haibiao Zheng, Zhijian Tan, Chaoju Yu, Shengxiang Wang, Lufeng Yang, Junye Yang, Tianhai Chen, Le Kang, Jie Chen   +8 more
doaj   +1 more source

Unveiling the Ultralow Thermal Conductivity of Hybrid Perovskites

Advanced Science, EarlyView.
In hybrid perovskites, thermal energy flows through lattice vibrations of the framework (48%–65%) and organic molecules (35%–52%). When the disorder introduced by organic molecules is excluded, the temperature dependence of the vibrational thermal conductivity results from the lattice framework transits from ∼T0 to ∼T−1, and the value doubles at room ...
Qinqin He, Yuli Chen, Zhigang Li, Yanguang Zhou   +3 more
wiley   +1 more source

Revealing the Nanoscale Morphology Changes of Polymer Electrolyte Membrane Fuel Cell Catalyst Layers due to Conditioning

Advanced Science, EarlyView.
We apply ex situ and in situ scanning transmission X‐ray microscopy to reveal the structural degradation of polymer electrolyte membrane fuel cell catalyst layers due to conditioning and thermal heating of the catalyst coated membrane. We observe a redistribution of the ionomer and carbon‐black in the catalyst layer, as well as nanoscale membrane ...
Spencer Lytle, Harsharaj B. Parmar, Jian Wang, Shohei Yamashita, Aimy Bazylak   +4 more
wiley   +1 more source

Measurement of fusion neutron yields in laser–cluster fusion experiments using binomial statistics

Nuclear Fusion
Accurate neutron-yield measurement is essential for fusion plasma diagnostics. In laser-driven fusion experiments, short-pulse quasi-monoenergetic neutrons can overlap within a narrow time-of-flight (TOF) window, leading to an underestimation of the ...
Youhwan Noh, Hyeong-il Kim, Seongmin Lee, Yonghun Noh, Chiwan Song, Jaehyun Song, Junho Won, Jun Sim, Jae Hee Sung, Woosuk Bang   +9 more
doaj   +1 more source