Results 31 to 40 of about 304 (88)

Design, implementation and verification of CubeSat systems for Earth Observation [PDF]

open access: yes, 2019
In recent years, Earth Observation (EO) technologies have surged in an attempt to better understand the world we live in, and exploit the vast amount of data that can be collected to improve our lives.
Pérez Portero, Adrián
core   +3 more sources

Frailty in Older Adults with Heart Failure. [PDF]

open access: yes, 2015
Frailty is prevalent in older adults with heart failure (HF), which increases their risk for basic and instrumental activities of daily living (ADL/IADL) disability and a diminished quality of life (QOL).
Xie, Boqin
core  

International comparison of optical frequencies with transportable optical lattice clocks [PDF]

open access: yes
Optical clocks have improved their frequency stability and estimated accuracy by more than two orders of magnitude over the best caesium microwave clocks that realise the SI second.
  +36 more
core   +1 more source

Thin-film Lithium Niobate on Insulator Surface Acoustic Wave Devices for 6G Centimeter Bands

open access: yes
In this work, we investigate the frequency scaling of shear-horizontal (S.H.) surface acoustic wave (SAW) resonators based on a lithium niobate on insulator (LNOI) substrate into the centimeter bands for 6G wireless systems.
Campbell, Joshua   +6 more
core   +1 more source

Pathfinder experiments with atom interferometry in the Cold Atom Lab onboard the International Space Station [PDF]

open access: yes
Deployment of ultracold atom interferometers (AI) into space will capitalize on quantum advantages and the extended freefall of persistent microgravity to provide high-precision measurement capabilities for gravitational, Earth, and planetary sciences ...
Ahlers, Holger   +28 more
core   +2 more sources

Bardian (September 30, 1950) [PDF]

open access: yes, 1950
Official student publication of Bard College, Annandale on Hudson.
Bard College,
core   +1 more source

GEP Tree-Based Prediction Model for Interfacial Bond Strength of Externally Bonded FRP Laminates on Grooves with Concrete Prism. [PDF]

open access: yesPolymers (Basel), 2022
Amin MN   +7 more
europepmc   +1 more source

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