Results 71 to 80 of about 152,699 (329)

Biomedical ultrasonoscope [PDF]

open access: yes, 1979
The combination of a "C" mode scan electronics in a portable, battery powered biomedical ultrasonoscope having "A" and "M" mode scan electronics, the latter including a clock generator for generating clock pulses, a cathode ray tube having X, Y and Z ...
Lee, R. D.
core   +1 more source

Energy and position resolution of a CdZnTe gamma-ray detector with orthogonal coplanar anodes [PDF]

open access: yes, 1999
We report on the simulation, construction and performance of prototype CZT imaging detectors employing orthogonal coplanar anodes. These detectors employ a novel electrode geometry with non-collecting anode strips in 1D and collecting anode pixels ...
Dufour, Pierre C   +7 more
core   +2 more sources

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam   +14 more
wiley   +1 more source

An overview on the structure and electrochemical properties of Co-free Ni-rich LiNi0.8Mn0.1Fe0.1O2 as a cathode material for lithium-ion batteries

open access: yesDiscover Applied Sciences
This study explores and throws more light on a new cobalt-free, nickel-rich LiNi0.8Mn0.1Fe0.1O2 cathode material for lithium-ion batteries. New technique was used to synthesize cobalt-free cathode material by replacing cobalt with iron in the NMC ...
Rasha S. El-Tawil   +5 more
doaj   +1 more source

LiCoPO4 cathode from a CoHPO4·xH2O nanoplate precursor for high voltage Li-ion batteries

open access: yesHeliyon, 2016
A highly crystalline LiCoPO4/C cathode material has been synthesized without noticeable impurities via a single step solid-state reaction using CoHPO4·xH2O nanoplate as a precursor obtained by a simple precipitation route. The LiCoPO4/C cathode delivered
Daiwon Choi   +6 more
doaj   +1 more source

CdZnTe strip detectors as sub-millimeter resolution imaging gamma radiation spectrometers [PDF]

open access: yes, 1997
We report γ-ray detection performance measurements and computer simulations of a sub-millimeter pitch CdZnTe strip detector. The detector is a prototype for γ-ray measurements in the range of 20-600 keV.
Boykin, V   +12 more
core   +2 more sources

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Suppressing Manganese Dissolution via Exposing Stable {111} Facets for High‐Performance Lithium‐Ion Oxide Cathode

open access: yesAdvanced Science, 2019
Spinel‐type LiMn2O4 cathode materials commonly suffer from manganese dissolution due to the severe interfacial side reactions especially at elevated temperature.
Yao Xiao   +11 more
doaj   +1 more source

Man-machine communication - A transparent switchboard for computers [PDF]

open access: yes, 1971
Device uses pattern of transparent contact touch points that are put on cathode ray tube screen. Touch point system compels more precise and unambiguous communication between man and machine than is possible with any other means, and speeds up operation ...
Rasmussen, H.
core   +1 more source

Tunable Coordination Number in Non‐Metal‐Introduced Copper Catalysts Enables High‐Performance Electrochemical CO2 Reduction to C2 Products

open access: yesAdvanced Functional Materials, EarlyView.
Copper catalysts introduced with different non‐metallic elements regulating the coordination number of Cu are prepared by magnetron sputtering. Reducing the Cu coordination number enhances C─C coupling and boosts C2+ product selectivity, by lowering the energy barrier for the *CO → *CHO conversion step. The optimized Si‐doped Cu catalyst achieves a C2+
Xiaoye Du   +8 more
wiley   +1 more source

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