Journal: Cyborg and Bionic Systems

Article Title: Noninvasive Intracranial Source Signal Localization and Decoding with High Spatiotemporal Resolution

doi: 10.34133/cbsystems.0206

Figure Lengend Snippet: Schematic diagram of the ultrasound modulated electroencephalography (USMEEG) principle. EEG, electroencephalography; tFUS, transcranial focused ultrasound; Chan., channel.

Article Snippet: The 3D transcranial single-source dipole numerical simulation model was constructed based on the above skull model and COMSOL 6.0 as shown in Fig. B1, and the ultrasound raster scanning area is shown in Fig. B2, with the yellow star shape as the neuron setting position and the red dots as the ultrasound irradiation point positions.

Techniques:

Journal: Cyborg and Bionic Systems

Article Title: Noninvasive Intracranial Source Signal Localization and Decoding with High Spatiotemporal Resolution

doi: 10.34133/cbsystems.0206

Figure Lengend Snippet: Schematic of the flow of the decoding and localization algorithm for acoustoelectric signals, 3D transcranial single-source dipole localization simulation model, and schematic diagram of the ultrasound irradiation strategy and electrocorticography (ECoG) signal compared to the fitted signal. (A1) Flowchart of the envelope decoding and localization algorithm . (A2) Flowchart of the pulse repetition frequency (PRF) sideband localization algorithm. (B1) Numerical simulation model. (B2) Schematic diagram of the ultrasound irradiation strategy. (C1) S1 analog source signal. (C2) S2 analog source signal. (C3) S3 analog source signal. (C4) S4 analog source signal. AE, acoustoelectric effect.

Article Snippet: The 3D transcranial single-source dipole numerical simulation model was constructed based on the above skull model and COMSOL 6.0 as shown in Fig. B1, and the ultrasound raster scanning area is shown in Fig. B2, with the yellow star shape as the neuron setting position and the red dots as the ultrasound irradiation point positions.

Techniques: Irradiation

Journal: Cyborg and Bionic Systems

Article Title: Noninvasive Intracranial Source Signal Localization and Decoding with High Spatiotemporal Resolution

doi: 10.34133/cbsystems.0206

Figure Lengend Snippet: (A) Schematic of the delay distribution of the array elements (the darker the color, the higher the delay). (B) Acoustic pressure field before and after transcranial modulation. (C) Comparison results of the focal acoustic pressure and mechanical index (MI). (D) Distribution of transcranial TR-modulated onset temperature field.

Article Snippet: The 3D transcranial single-source dipole numerical simulation model was constructed based on the above skull model and COMSOL 6.0 as shown in Fig. B1, and the ultrasound raster scanning area is shown in Fig. B2, with the yellow star shape as the neuron setting position and the red dots as the ultrasound irradiation point positions.

Techniques: Comparison

Journal: Cyborg and Bionic Systems

Article Title: Noninvasive Intracranial Source Signal Localization and Decoding with High Spatiotemporal Resolution

doi: 10.34133/cbsystems.0206

Figure Lengend Snippet: Focal acoustic pressure and MI for each modulation method

Article Snippet: The 3D transcranial single-source dipole numerical simulation model was constructed based on the above skull model and COMSOL 6.0 as shown in Fig. B1, and the ultrasound raster scanning area is shown in Fig. B2, with the yellow star shape as the neuron setting position and the red dots as the ultrasound irradiation point positions.

Techniques:

Journal: Nature Communications

Article Title: Production of a monolithic fuel cell stack with high power density

doi: 10.1038/s41467-022-28970-w

Figure Lengend Snippet: The graphs display the predictions of a multiphysics model on the pressure built-up inside the SRU monoliths (black lines/symbols) during the debinding step (red lines). Below the graphs, the photographs show the integrity of the corresponding SRU monoliths after heat treatment (debinding and sintering steps). a , Case of a SRU monolith manufactured using only graphite as sacrificial material to form the gas channels, b , Case of a SRU monolith manufactured using a 50–50 vol.% mixture of graphite–PMMA as sacrificial material to form the gas channels, and c , Case of a SRU monolith manufactured using only PMMA as sacrificial material to form the gas channels. The SRU presented in Fig. 2c reveals large cracks after debinding/sintering steps which is in good accordance with the model which predicted that SRU monolith manufactured using 100% PMMA would lead to the highest pressure (14 mbar around 200 °C) among the three pore-forming agents investigated, and therefore will be the most likely to fracture. Note that both PMMA and graphite are also contained the electrode tapes which explains why a pressure peak corresponding to graphite removal can also be found in the case of Fig. 2c, for example.

Article Snippet: To identify the process parameters required to achieve an optimized monolith (avoiding disintegration and warpage during debinding), a 3D model simulating the debinding process was developed using COMSOL Multiphysics.

Techniques: