Results 181 to 190 of about 20,890 (228)

Effects of Ambient Moisture and Large‐Strain Dynamic Preloading on the Dynamic Properties of the EAC‐1A Regolith Simulant

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The EAC‐1A lunar mare simulant, a silty sand, was selected by the European Astronaut Center (EAC) for use in the LUNA analogue facility's lunar simulation testbed. Its stress‐ and strain‐dependent shear modulus and damping ratio were determined via resonant column testing on specimens prepared either from ambient moisture material or oven ...
Christos Vrettos
wiley   +1 more source

Germanium-on-Silicon Waveguide-Integrated Photodiode with Dual Optical Inputs for Datacenter Applications. [PDF]

Micromachines (Basel)
Priel IM, Cohen S, Gantz L, Nemirovsky Y.   +3 more
europepmc   +1 more source

Resonant Acoustic Spectroscopy for Measuring Complex Modulus of Bitumen. [PDF]

Sensors (Basel)
Kollmus FA, Sassaki Vieira da Silva L, Wistuba MP.   +2 more
europepmc   +1 more source

Track-to-Track Fusion for Cooperative Perception Using Collective Perception Messages. [PDF]

Sensors (Basel)
Castelino RM, Pradhan S, Hahn A.
europepmc   +1 more source

Influence of Architected Core Topology on the Dynamic and Flexural Behaviour of Multi-Material Sandwich Structures. [PDF]

Polymers (Basel)
Doğanay Katı H, Khan M.
europepmc   +1 more source

Geographically weighted negative binomial regression for spatial count data: Methodology and application. [PDF]

MethodsX
Saifudin T, Chamidah N, Azizah N, Renianti FS, Carista N, Adyatma IY, Tianda IM.   +6 more
europepmc   +1 more source

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Tunable bandpass filters with constant absolute bandwidth

Proceedings of the 9th International Symposium on Antennas, Propagation and EM Theory, 2010
This paper presents the design of novel tunable bandpass filters with constant absolute bandwidth. A novel mixed electric and magnetic coupling scheme is utilized. Theoretical analysis indicates that it is able to achieve desired coupling coefficients between the proposed resonators at various frequencies so as to obtain constant absolute bandwidth ...
Hong-Lin Zhang, Bin-Jie Hu, Xiu Yin Zhang   +2 more
exaly   +2 more sources

Compact Tunable Filtering Power Divider With Constant Absolute Bandwidth

IEEE Transactions on Microwave Theory and Techniques, 2015
This paper presents a novel frequency-agile filtering power divider with constant absolute bandwidth and high selectivity. The proposed design utilizes four coupled resonators to obtain the two functions of power division and filtering. Synthesis of the filtering power divider is carried out and the design guidelines are given.
Quan Xue, Xiu Yin Zhang, Li Gao
exaly   +2 more sources