China
Africa
Explore chapters and articles related to this topic
Noninvasive Sensing of Serum sRAGE and Glycated Hemoglobin by Skin UV-Induced Fluorescence
Published in Andrey V. Dunaev, Valery V. Tuchin, Biomedical Photonics for Diabetes Research, 2023
Vladimir V. Salmin, Tatyana E. Taranushenko, Natalya G. Kiseleva, Alla B. Salmina
We developed the original compact spectrofluorometer with UV LED excitation for the assessment of skin autofluorescence. The device (Figure 7.1) includes the following elements: Information about the spectra can be obtained using the spectrometer STS-VIS USA (1). Radiation from the object under study enters the spectrometer through a condenser lens (2). To excite fluorescence, frontal illumination of UV LEDs with different wavelengths, crossing beams at an acute angle (3–5), is used. A white LED (6) is used to record the reflection spectra. For synchronous with the start of the spectrometer on and off the LEDs, a hardware-software device for controlling LEDs is used (7). The measurement signal is triggered by a command from the computer. For the convenience of storing information (measurement data, software), a flash memory module is used (8). A USB hub (9) is used to connect USB devices. Data transfer to a computer and power supply of the device is carried out via a USB cable (10). Fixation of the device on the skin area is carried out using a lens hood (11).
Instruments for Data Acquisition
Published in Felix Alberto Farret, Marcelo Godoy Simões, Danilo Iglesias Brandão, Electronic Instrumentation for Distributed Generation and Power Processes, 2017
Felix Alberto Farret, Marcelo Godoy Simões, Danilo Iglesias Brandão
Latest computers have typically two or more USB ports, but with so many USB devices on the market, generally it is not enough. Suppose on a computer there is a printer, a scanner, a webcam, and a network connection, all with standard USB. If the computer has only two connections, the easiest solution is an inexpensive USB hub. The USB standard supports up to 127 devices, and the USB hub also is a part of this standard (see Figure 9.14).
Demonstration of a portable intracortical brain-computer interface
Published in Brain-Computer Interfaces, 2019
Jeffrey M. Weiss, Robert A. Gaunt, Robert Franklin, Michael L. Boninger, Jennifer L. Collinger
The participant was able to use the portable iBCI both in the lab and at his home for a variety of uses including computer painting, playing games, and typing. Examples of these tasks are shown in Figure 6. Figure 6(a) shows the participant using the system mounted to his wheelchair, while in Figure 6(b) it is positioned in his lap. Sample performance during iBCI painting and gaming can be seen in Supplementary Videos 2–3. The participant was also able to participate in a multi-player computer game with able-bodied competitors by connecting conventional USB gamepad controllers to the tablet using a USB hub.
An experimental investigation of the bicycle motion during a hands-on shimmy
Published in Vehicle System Dynamics, 2021
Nicolò Tomiati, Gianantonio Magnani, Marco Marcon
The Data Acquisition System (DAS) architecture represented in Figure 1 is based on a Central Unit (CU) formed by an Embedded PC: a Raspberry Pi II [14], and on six Inertial Measurement Units (IMUx, where x is the board number) each integrated into an Arduino (Genuino) 101 device [15]. Each Arduino 101 is connected to the CU by a USB cable through a USB hub (since the Raspberry Pi has only four USB ports). The Raspberry Pi and the USB hub are powered using a power bank of 20 Ah placed on the bicycle seat tube while the Arduino 101 boards are directly powered from the USB cable.