Results 61 to 70 of about 14,265 (262)

Understanding Operando Water Management in Hydroxide‐Exchange‐Membrane Fuel Cells

Advanced Materials Interfaces, EarlyView.
Effective water management is vital for high‐performance hydroxide‐exchange‐membrane fuel cells. Using a custom water‐flux station, this study quantifies how membrane thickness, microporous layers, and operating conditions dictate internal water transport.
Catherine M. Weiss, Shiyi Wang, Brian P. Setzler, Yushan Yan, Adam Z. Weber   +4 more
wiley   +1 more source

Observed Correlation Between Local Topography and Passive Neutron Measurements From the Dynamic Albedo of Neutrons (DAN) Instrument on the Mars Science Laboratory (MSL) Rover

Earth and Space Science
The Dynamic Albedo of Neutrons (DAN) instrument on the Mars Science Laboratory Curiosity rover primarily measures neutrons that have undergone interactions with rocks and materials in the rover's local environment.
Steven D. Dibb, Craig Hardgrove, Jack Lightholder, Lena Heffern, Bent Ehresmann   +4 more
doaj   +1 more source

Neutron Reflectometry and Compression of Graded Hydrogel Surfaces

Advanced Materials Interfaces, EarlyView.
Highly‐entangled and covalently‐crosslinked hydrogels with thin and thick surface gel layers are compressed in neutron reflectometry experiments. Surface gel layer thickness dictates the extent to which the polymer network at the surface of a hydrogel collapses, while crosslinking chemistry, and therefore elastic modulus, impacts the pressure at which ...
Kathryn E. Shaffer, Alex Q. Zhang, Mehdi Karimi, Ahmed Al Kindi, Linnaea D. Uliassi, Nemea S. Courelli, Julia J. Ong, Conor D. Pugsley, Andrew R. Rhode, Erik B. Watkins, Rebecca J.L. Welbourn, Alexander Alexeev, Angela A. Pitenis   +12 more
wiley   +1 more source

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

High‐Performance Piezoelectric Nanogenerators Based on Wurtzite BeO Nanowire Arrays

Advanced Materials Technologies, EarlyView.
This study demonstrates high‐performance piezoelectric nanogenerators based on 1D BeO nanowire arrays. The BeO nanowires exhibit a high piezoelectric coefficient (∼15.8 pm V−1) and deliver an output voltage of ∼26.1 V and power density of ∼0.32 µW cm−2.
Yoonseo Jang, Jihyeon Park, Seoyeah Oh, Jonghyun Bae, Prakash R. Sultane, Christopher W. Bielawski, Jiwon Kim, Jungwoo Oh   +7 more
wiley   +1 more source

Radiation-Induced Wavelength Shifts in Fiber Bragg Gratings Exposed to Gamma Rays and Neutrons in a Nuclear Reactor

Sensors
Fiber Bragg gratings (FBGs) inscribed by UV light and different femtosecond laser techniques (phase mask, point-by-point, and plane-by-plane) were exposed—in several irradiation cycles—to accumulated high doses of gamma rays (up to 124 MGy) and neutron ...
G. Berkovic, S. Zilberman, Y. London, M. Rosenfeld, E. Shafir, O. Ozeri, K. Ben-Meir, A. Krakovich, T. Makmal   +8 more
doaj   +1 more source

Displacive In‐Plane Ferroelectricity with Domain‐Specific Curie Temperature in Van der Waals Semiconductors

Advanced Science, EarlyView.
Temperature‐dependent electron diffraction on tin monochalcogenides demonstrates a gradual displacive transformation between ferroelectric and paraelectric phases with significant variability in lattice constants and Curie temperature (TC). Periodic variations exist even between domains in individual crystals, implying a domain‐specific Curie ...
Peter Sutter, Eli Sutter
wiley   +1 more source

Study on the Response Relationship between Neutrons and Void Height of Steel-Shell Concrete Composite Structure

Journal of Isotopes
In order to reveal the response relationship between the neutrons and void height of steel-shell concrete composite structures，and establish a new quantitative detection method for the void height，based on the principle of fast neutron moderation and ...
Hongbo ZHAO, Guoqing LIU, Ziwu FAN, Long SUN, Lingchao MENG, Langlang WANG, Yunfei HONG   +6 more
doaj   +1 more source

The 7Li(18O, 17O)8Li reaction and the 17O + 8Li potential [PDF]

Ядерна фізика та енергетика, 2009
This paper deals with the results of isomer ratio measurements for nuclei 110m,gIn and 108m,gIn from photonuclear reactions 113In(γ, 3n)110m,gIn, 115In(γ, 5n)110m,gIn, 115In(γ, 7n)108m,gIn.
O. A. Bezshyyko, A. N. Vodin, L. O. Golinka-Bezshyyko, A. N. Dovbnya, I. M. Kadenko, O. A. Kovalenko, V. A. Kushnir, A. I. Levon, V. V. Mitrochenko, S. N. Olejnik, G. E. Tuller   +10 more
doaj  

Spatial Engineering of Gas Diffusion Layers Overcomes Mass Transport Limitations in Fuel Cells

Advanced Science, EarlyView.
ABSTRACT Mass transport limitations at high current densities hinder polymer electrolyte fuel cell (PEFC) performance due to inefficient water management and reactant distribution. Gas diffusion layer (GDL) perforation offers a potential solution as an alternative to complex flow‐field modifications.
Shangwei Zhou, Wenjia Du, Jianuo Chen, Yunsong Wu, Bochen Li, Jieyang Li, Linlin Xu, Winfried Kockelmann, Meng Lin, Marc‐Olivier Coppens, Paul R Shearing, Rhodri Jervis, Thomas S. Miller   +12 more
wiley   +1 more source