A NUMERICAL STUDY OF SUB-MILLISECOND INTEGRATED MIX-AND-INJECT MICROFLUIDIC DEVICES FOR SAMPLE DELIVERY AT SYNCHROTRON AND XFELS

A Numerical Study of Sub-Millisecond Integrated Mix-and-Inject Microfluidic Devices for Sample Delivery at Synchrotron and XFELs

Microfluidic devices which integrate both rapid mixing and liquid jetting for sample delivery are an emerging solution for studying molecular dynamics via X-ray diffraction.Here we use finite element modelling to investigate the efficiency and time-resolution achievable using microfluidic mixers within the parameter range required for producing sta

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Cosmological perturbations in generalised dark Lagrangians

Abstract We describe a new method to parameterise dark energy theories including massive gravity, elastic dark energy and tensor-metric theories.We first examine the existing framework which describes any second order Lagrangian which depends on the variation of the metric and find new constraints on the parameters.We extend the method to Lorentz L

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