Real-Time Non-Contact Millimeter Wave Radar-Based Vital Sign Detection.

In this paper, the extraction of the life activity spectrum based on the millimeter (mm) wave radar is designed to realize the detection of target objects and the threshold trigger module. The maximum likelihood estimation method is selected to complete the design of the average early warning probability trigger function. The threshold trigger module is designed for the echo signal of static objects in the echo signal.

Design and Fabrication of Implantable Neural Probes with Monolithically Integrated Light-Emitting Diodes for Optogenetic Applications.

We report an implantable neural probe with monolithically integrated light-emitting diodes (LEDs) and recording site for optogenetic applications. The device were designed and fabricated with 2-inch gallium nitride on silicon epitaxial wafer. The neural probe consisted of three μLEDs (a mesa size of 310 × 41 mm2) and four electrical recording sites, which had a total length of 6.

Vertical and bevel-structured SiC etching techniques incorporating different gas mixture plasmas for various microelectronic applications.

This study presents a detailed fabrication method, together with validation, discussion, and analysis, for state-of-the-art silicon carbide (SiC) etching of vertical and bevelled structures by using inductively coupled plasma reactive ion etching (ICP-RIE) for microelectronic applications. Applying different gas mixtures, a maximum bevel angle of 87° (almost vertical), large-angle bevels ranging from 40° to 80°, and small-angel bevels ranging from 7° to 17° were achieved separately using distinct gas mixtures at different ratios. We found that SF with additive O was effective for vertical etching, with a best etching rate of 3050 Å/min.

Characterization of topographically specific sleep spindles in mice.

Study Objective: Sleep spindles in humans have been classified as slow anterior and fast posterior spindles; recent findings indicate that their profiles differ according to pharmacology, pathology, and function. However, little is known about the generation mechanisms within the thalamocortical system for different types of spindles. In this study, we aim to investigate the electrophysiological behaviors of the topographically distinctive spindles within the thalamocortical system by applying high-density EEG and simultaneous thalamic LFP recordings in mice.

Dipole source localization of mouse electroencephalogram using the Fieldtrip toolbox.

The mouse model is an important research tool in neurosciences to examine brain function and diseases with genetic perturbation in different brain regions. However, the limited techniques to map activated brain regions under specific experimental manipulations has been a drawback of the mouse model compared to human functional brain mapping. Here, we present a functional brain mapping method for fast and robust in vivo brain mapping of the mouse brain.

Cortical source localization of mouse extracranial electroencephalogram using the FieldTrip toolbox.

Neuronal source estimation is a general tool for analyzing spatiotemporal dynamics in human EEG. Despite rapidly-evolving interest in human brain, there are few EEG based source estimation tools in rodent brain. Therefore, we implemented source estimation tool in a mouse model, using the FieldTrip open-source software.