This second-order attenuation of growth is equivalent to a logistic model, and a possible alternative approach would be to attenuate M(C t, S) according to an explicit logistic term with a carrying capacity.
The analysis indicates that the openings in the screen should be on the order of 10 μm in order to avoid excessive attenuation of the signal.
In order to achieve expected attenuation of blast-induced stress-waves, geofoam or cavity inclusions are sometimes embedded in the concrete layer.
In order to measure the attenuation of light by periphyton a method has been developed which assures that natural periphyton architecture and therefore its optical characteristics remain preserved.
Sound wave propagation in argon gas is simulated using molecular dynamics (MD) in order to determine the attenuation of acoustic energy due to classical (viscous and thermal) losses at high frequencies.
The optical path of the apparatus, except the space between the photomask and the sample, was designed so as to be purged with nitrogen in order to avoid the attenuation of the VUV light, since oxygen molecules strongly absorb such lights.
A plastic dental apparatus model (Kilgore Typodent, Kilgore International, St. Coldwater, MI) with artificial teeth and randomly distributed dental restorations (n = 8) was used in the phantom study, which was placed in a 20 cm water phantom in order to mimic the attenuation of a head (Fig. 1a-d).
Each animal was separated by a wire mesh cage with a diameter of 10 cm in order to abolish the attenuation of sound pressure by the adjacent animals.
In order to confirm the attenuation of neutrophil recruitment, the inflammatory cell component of regenerating muscle was analysed by flow cytometry.
In order to determine whether attenuation of Rac1 expression using siRNA-Rac1 can, similarly to Rac1 inhibitor, modulate cell viability and clonogenic survival in reponse to radiation or cisplatin exposure, parental and IRR HNSCC cells were transfected with specific siRNA-Rac1 and scrambled control siRNA (siRNA-A) (Supplementary Figure S4).
The first part of this study consists of the evaluation of the order of magnitude of the vibration attenuation which can be obtained by this design scheme.
