However, as surface waves are in motion during the SAR imaging time (i.e., water particles are moving either toward or away from the radar system), the high-frequency components of ocean waves are missed (the "cut-off " effect), and the distortion of the spectrum occurs during the ...
Wavefront shaping-assisted photoacoustic endomicroscopy imaging systems. (a) Multimode fibre-based imaging probe with an external piezoelectric ultrasound transducer. Optical-resolution photoacoustic microscopy images of Nylon wires are shown in insets. The fibre was characterised by the digital optical phas...
At an elevation ofHcam = 11.7 m above the random dot pattern a digital camera (LaVision ImagerMX 4 M, 2048 × 2048 pixel) with a CMOS sensor and a bit depth of 10 bit is imaging the field of view. The pixel size is 5.5 × 10–6m. The applied frame rate is 25 ...
Registration of the cortex-wide voltage imaging data into the Allen Mouse Brain atlas was performed as previously described31. To measure the behavioral states of the animals, we adapted the motion energy (ME) method49 to analyze the facial expression movies synchronized to the brain imaging data...
24.18b. A downward arrow shows the impact point, and two upward arrows denote the locations of accelerometers. The distances (intervals) between the accelerometer and the impact point, which is located right over the duct, are varied as 20, 50, and 90 mm. Immediately before the test, the ...
Such a technique has been already successfully used for both spatial and spectral imaging of negative index focusing devices. Near-field measurements unambiguously show the cloaking effect: for the carpet cloak structure, the wave fronts are resolved and exhibit a quasi flat shape while the ...
The illumination is generated by a light-emitting diode or solid-state laser, which operates in the range of near-infrared (~850 nm) [28]. The photonic energy is converted to electrical current by the imaging sensor, which receives the reflection of generated light. Depth or distance informati...
just doing visual, I could get a polar alignment good enough to keep an object in the eyepiece for a while with just a compass. But since I already had the bubble level and solar scope out for aligning the imaging mount, it made sense to spend 5 minutes on each of the visual mounts...
1. According to the analysis of sampling requirements, sensor characteristics and sampling locations, the pressure pulse sensor is arranged at Cun-Guan-Chi, three places at the wrist where the pulse is usually taken. Since the Cun-Guan-Chi is close to the end of the radial artery, the ...
Temperature is an essential oceanographic variable (EOV) that still today remains coarsely resolved below the surface and near the seafloor. Here, we gather evidence to confirm that Distributed Acoustic Sensing (DAS) technology can convert tens of kilome