Results 121 to 130 of about 220,608 (333)
Realization of a Bilayer Elastic Topological Insulator
Advanced Science, EarlyView.Bilayer elastic wave topological insulators are experimentally realized, introducing the layer degree of freedom to access four topological phases. This enables diverse domain walls and transmission behaviors, including interlayer conversion and beam splitting.
Chengzhi Ma +4 more
wiley +1 more source
Analysis of navigation performance for the Earth Observing System (EOS) using the TDRSS Onboard Navigation System (TONS) [PDF]
Use of the Tracking and Data Relay Satellite System (TDRSS) Onboard Navigation System (TONS) was proposed as an alternative to the Global Positioning System (GPS) for supporting the Earth Observing System (EOS) mission.
Elrod, B. +3 more
core +1 more source
Low-cost navigation and guidance systems for unmanned aerial vehicles - part 1: Vision-based and integrated sensors [PDF]
, 2012 In this paper we present a new low-cost navigation system designed for small size Unmanned Aerial Vehicles (UAVs) based on Vision-Based Navigation (VBN) and other avionics sensors.
Bartel, C +6 more
core
Relativistic Positioning Systems
, 2006 The theory of relativistic {\em location systems} is sketched. An interesting class of these systems is that of relativistic {\em positioning systems,} which consists in sets of four clocks broadcasting their proper time.
Coll, Bartolomé
core +4 more sources
Remote Sensing, 2019 This work analyzes the satellite cross-talk observed by the microwave interferometric reflectometer (MIR), a new global navigation satellite system (GNSS) reflectometer, during an airborne field campaign in Victoria and New South Wales, Australia. MIR is
Raul Onrubia Ibáñez +6 more
semanticscholar +1 more source
Electrochemical Nitrate Reduction Reaction to Ammonia at Industrial‐Level Current Densities
Advanced Science, EarlyView.This review starts from the mechanism and theoretical basis of electrochemical nitrate reduction reaction (NO3−RR), and systematically summarizes and discusses the design strategies of industrial‐level current density catalysts. In addition, the progress of industrial‐level NO3−RR‐based electrolyzers, including flow reactor and membrane electrode ...
Zhijie Cui +4 more
wiley +1 more source
New satellite systems for obtaining data for Geographic information systems [PDF]
Acta Montanistica Slovaca, 2006 Galileo will be the European global navigation satellite system, providing a highly accurate and a guaranteed global positioning service under the civilian control.
Miroslav Šimčák
doaj
Performances of a GNSS receiver for space-based applications [PDF]
, 2010 Space Vehicle (SV) life span depends on its station keeping capability. Station keeping is the ability of the vehicle to maintain position and orientation. Due to external perturbations, the trajectory of the SV derives from the ideal orbit.
Bousquet, Michel +3 more
core
Redefining the Health Risk of Battery Materials Through a Biologically Transformed Metal Mixture
Advanced Science, EarlyView.Inhaled NCM particles undergo lysosomal degradation, releasing complex ion mixtures that induce systemic impact. The impact is determined by a critical balance between antagonistic Ni‐Co interactions and synergistic Mn effects. To capture these complexities in risk assessment, we develop an IAI model, ensuring a more accurate quantitative risk ...
Ze Zhang +11 more
wiley +1 more source
Advanced Science, EarlyView.High‐throughput screening led to the identification of 67 Z‐scheme heterojunctions (comprising 2D magnetic transition metal halides and non‐magnetic transition metal chalcogenides). For CrI3/MoTe2 and CrI3/WTe2, electronic structure analysis demonstrated that synergistic crystallographic point group and built‐in electric field effects generate a ...
Hongyang Ren +8 more
wiley +1 more source