Results 81 to 90 of about 5,564 (299)

The Correlation Characteristics of Polarization Backscattering Matrix of Dense Chaff Clouds [PDF]

Radioengineering, 2018
This paper studied the correlation characteristics of the polarization backscattering matrix of the dense chaff cloud with uniform orientation and location distributions in circular symmetry region.
B. Tang
doaj  

Dependent and multiple scattering in transmission and backscattering optical coherence tomography

, 2013
We use transmission and backscattering optical coherence tomography (OCT) to distinguish and quantify dependent and multiple scattering effects in turbid media.
van der Pol, E., Faber, D. J., Nguyen, V. Duc, van Leeuwen, T. G., Kalkman, J.   +4 more
core   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +1 more source

Empirical equations for electron backscattering coefficients

, 1965
Empirical equations for electron backscattering ...
Koral, K. F., Cohen, A. J.
core  

SUBGLACIAL WATER LAYER AND GROUNDING LINE DERIVED FROM BACKSCATTERING COEFFICIENTS OF RADIO ECHO SOUNDING IN THE SHIRASE GLACIER AND ROI BAUDOUIN ICE SHELF, EAST ANTARCTICA

, 1991
P(論文)In the 1986-87 austral summer, ice thickness measurements using a new designed airborne radio echo sounding system were carried out in the Shirase Glacier drainage basin and Roi Baudouin lce Shelf, Princess Ragnhild Coast, East Antarctica.
ニシオ, フミヒコ, URATSUKA, Seiho, ウラツカ, セイホ, NISHIO, Fumihiko   +3 more
core   +1 more source

Extraction of Backscattering and Absorption Coefficients of Magnetite Nanosphere Composites from Light-Scattering Measurements : Implications for Optomagnetic Sensing

, 2020
Interaction of light with magnetic nanoparticles, dispersed insolution or embedded in other materials, is of major interest in a range of applications, one example being optomagnetic sensors.
Edvinsson, Tomas,, Nilsson, Annica, Niklasson, Gunnar, Wang, JunXin,, Niklasson, Gunnar,, Edvinsson, Tomas, Xu, Changgang,, Han, Yuanyuan,, Xiong, Hui, Strömberg, Mattias,, Han, Yuanyuan, Wang, JunXin, Nilsson, Annica,, Strömberg, Mattias, Xiong, Hui,, Xu, Changgang   +15 more
core   +1 more source

In Situ Crystalline‐Amorphous Composite Oxide Structure Suppressing Thermal Wear Instability for Refractory Multi‐Principal Element Alloy

Advanced Functional Materials, EarlyView.
An effective strategy is developed to overcome the medium temperatures wear resistance degradation in refractory multi‐principal element alloys. By utilizing chemical short‐range ordering to trigger oxygen‐induced amorphization, a composite oxide structure is formed, which combines high hardness with robust stiffness.
Xuhui Pei, Jianbao Zhang, Hanming Wang, Yin Du, Tao Yang, Ji‐Jung Kai, Benyebka Bou‐Saïd, Haifeng Wang   +7 more
wiley   +1 more source

Mechanical Stress Evolution in Polycrystalline Ge Thin Films Under MeV Ion Irradiation

Advanced Materials Interfaces, EarlyView.
Irradiation of polycrystalline Ge thin films with 1.8 MeV Au ions alters residual stress through defect generation and lattice expansion. Increasing fluence drives progressive lattice disorder and eventual amorphization. Polycrystalline Ge resists amorphization longer than crystalline Ge, as grain boundaries facilitate defect diffusion, significantly ...
Karla J. Paz Corrales, Aaron Reupert, Kevin Lubig, Frank A. Müller, Berit Marx‐Glowna, Ralf Röhlsberger, Till Weickhardt, Giancarlo Soavi, Martin Hafermann, Elke Wendler, Carsten Ronning   +10 more
wiley   +1 more source

A New Light on SAR Backscattering Coefficient and Interferometric Coherence in Layover Areas

, 2015
International audienceThis letter focuses on the analysis of layover effects in interferometric synthetic aperture radar (SAR) data of urban areas.
Thirion-Lefevre, L., Colin-Koeniguer, E., Mokadem, A.   +2 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source