Results 111 to 120 of about 220,305 (309)
Photographic fireball networks [PDF]
Long term radar observations of any meteor shower yield good data for a study of the features of its cross section structure in detail. The hourly rates of meteor echoes represent usually the basic data from which shower characteristics are derived ...
Ceplecha, Z.
core +1 more source
High‐Performance Recycling Biobased Photopolymers for 3D Printing
Advanced Science, EarlyView.By using biobased phenols like eugenol, novel biobased photopolymers containing dissociative phenol‐carbamate bonds are designed for 3D printing. Meanwhile, a “mixed‐monomer assisted recycling” strategy is proposed to recycle the materials. The resulting materials not only achieve high‐performance and excellent chemical recyclability simultaneously ...
Hang Zhou +12 more
wiley +1 more source
Compensation of Heat Effect in Dielectric Barrier Discharge (DBD) Plasma System for Radar Cross-Section (RCS) Reduction. [PDF]
Sensors (Basel), 2023 Jung J +8 more
europepmc +1 more source
AgRISTARS. Supporting research: MARS x-band scatterometer [PDF]
The design, construction, and data collection procedures of the mobile agricultural radar sensor (MARS) x band scatterometer are described. This system is an inexpensive, highly mobile, truck mounted FM-CW radar operating at a center frequency of 10.2 ...
Brunfeldt, D. R. +2 more
core +1 more source
Advanced Science, EarlyView.Reactivity‐Programmed Assembly: A kinetic‐control strategy is reported for constructing hyperconnected silicone aerogels with a robust “thick‐neck” architecture. By exploiting the reactivity disparity of precursors, flexible segments are uniformly embedded within a rigid skeleton.
Aoqing Yan +9 more
wiley +1 more source
Reduction of Radar Cross Section by Adopting Symmetrical Coding Metamaterial Design for Terahertz Frequency Applications. [PDF]
Materials (Basel), 2023 Ramachandran T +5 more
europepmc +1 more source
Introduction to radar cross-section measurements
Proceedings of the IEEE, 1965 This paper is intended to serve both as an introduction to radar cross-section measurements and as an introduction to the several measurement papers that follow in this issue. We discuss the contribution that experimental work makes to theoretical studies. The history of cross-section measurements is reviewed.
P. Blacksmith, R.E. Hiatt, R.B. Mack
openaire +2 more sources
Advanced Science, EarlyView.Increasing nanocurvature effectively enriches the local electron density of the M–N4 motif, which facilitates electron transfer from the metal center to nitrogen atoms. This electronic behavior intensifies the localization and asymmetric distribution of charge, thereby significantly amplifying the dipole moment and polarizability.
Daohu Sheng +7 more
wiley +1 more source
Development of diverse coding metamaterial structure for radar cross section reduction applications. [PDF]
Sci Rep, 2022 Ramachandran T +4 more
europepmc +1 more source
Flexible IMU Sensor Array For 3D Colonoscope Shape Reconstruction and AI‐Based Loop Detection
Advanced Science, EarlyView.We propose a sensing platform for 3D visualization of the colonoscope combined with artificial intelligence (AI)‐based loop detection. The system consists of an array of 15 inertial measurement units (IMUs) mounted on a flexible printed circuit board that can be retrofitted into the instrument channel of conventional colonoscopes.
Tuukka Panula +3 more
wiley +1 more source