Excellent soft magnetic properties have been achieved in a wide metal volume fraction (x) range for as-deposited (Fe65Co35)x(SiO2)1?x granular films fabricated by magnetron sputtering. With the decrease x from 0.7 to 0.5, exhibit small coercivity Hc not exceeding 4?Oe and high electrical resistivity ? up 5.48 103????cm. A minimum value of 1.7?Oe was obtained sample = 0.57 with 2.86 At frequency lower than 1.3?GHz, real part ?' complex permeability this is about 170 then decreases while...

The current demand for high-channel-count neural-recording interfaces calls more area- and power-efficient readout architectures that do not compromise other electrical performances. In this article, we present a miniature 128-channel neural recording integrated circuit (NRIC) the simultaneous acquisition of local field potentials (LFPs) action (APs), which can achieve very good between area, power, noise, input range, electrode dc offset (EDO) cancellation. An ac-coupled 1st-order...

The rapidly evolving field of Large Language Models (LLMs) holds immense promise for healthcare, particularly in medication guidance and adverse drug reaction prediction. Despite their potential, existing LLMs face challenges dealing with complex polypharmacy scenarios often grapple data lag issues. To address these limitations, we introduce an LLM-based Chinese system, called ShennongMGS, specifically tailored robust predictions. Our system transforms multi-source heterogeneous information...

The recording of biopotential signals using techniques such as electroencephalography (EEG) and electrocardiography (ECG) poses important challenges to the design front-end readout circuits in terms noise, electrode DC offset cancellation motion artifact tolerance. In this paper, we present a 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">nd</sup> -order hybrid-CTDT Δ∑-∑ modulator architecture that tackles these by taking advantage...

Abstract Objectives To explore the value of structural neuroimaging in predicting prognosis shunt surgery for idiopathic normal-pressure hydrocephalus (iNPH) using two different standard semi-quantitative imaging scales. Methods A total 47 patients with iNPH who underwent at our hospital between 2018 and 2020 were included this study. The modified Rankin Scale (mRS) grading scale (iNPHGS) used to evaluate quantify clinical symptoms before after surgery. disproportionately enlarged...

This paper presents a scalable neural recording analog front-end architecture enabling simultaneous acquisition of action potentials, local field electrode DC offsets and stimulation artifacts without saturation. By combining DC-coupled <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\Delta $ </tex-math></inline-formula> - \Sigma with new bootstrapping chopping schemes, the proposed readout IC achieves an...

Acupuncture is a widely used clinical treatment method, and studies have confirmed its therapeutic effects on stroke patients. It can also reduce the burden patients society. complementary preventive for stroke. However, there has yet to be visual bibliometric analysis of field acupuncture rat models. This study explores future trends, research hotspots, frontiers in models over past 20 years through investigation visualization. We collected literature data rats from Web Science Core...

Abstract Based on CT and MRI images acquired from normal pressure hydrocephalus (NPH) patients, using machine learning methods, we aim to establish a multimodal high-performance automatic ventricle segmentation method achieve an efficient accurate measurement of the ventricular volume. First, extract brain 143 definite NPH patients. Second, manually label volume (VV) intracranial (ICV). Then, use features model. Finally, verify reliability model achieved VV ICV. In images, Dice similarity...

Voltage references (VRs) play a crucial role in the PMUs of electronic systems, providing stable voltage regardless process variations, supply fluctuations, and temperature changes. The BGR has been widely employed as reliable VR since 1980s <xref ref-type="bibr" rid="ref1" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[1]</xref> , delivering approximately 1.2 V based on silicon bandgap ( <italic xmlns:xlink="http://www.w3.org/1999/xlink">V</i>...

This paper presents an analog front-end architecture with capacitively-coupled instrumentation amplifier and 14 bit low power SAR ADC. It is implemented in a 0.18 μm Global Foundry CMOS technology. Chopping technique employed the to sustain input-referred noise level (1.2μV <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">RMS</sub> from 0.3Hz 500Hz). Additionally, compensate non-linearity ADC, digital calibration method minimum area penalty...

To assess RF-induced heating hazards in 1.5T MR systems caused by body-loop postures.Twelve advanced high-resolution anatomically correct human body models with different postures are created based on poseable adult male models. Numerical simulations performed to the radiofrequency (RF)-induced of these 12 at 11 landmarks. A customized phantom is developed validate numerical and quantitatively analyze factors affecting heating, eg, contact area, loop size, loading position. The inside three...

The cause of idiopathic normal pressure hydrocephalus's (iNPH) clinical symptoms remains unclear. cerebral cortex is the center brain and provides a structural basis for complex perception motor function. This study aimed to explore relationship between changes in volume patients with iNPH. included 21 iNPH 20 aging (NA) controls. Voxel-based morphometry statistical results showed that, compared NA, gray matter volumes bilateral temporal lobe, hippocampus, thalamus, insula, left amygdala,...

The extremely low-power and small-area system requirements of nowadays biomedical internet-of-thing (IoT) applications have increased the demand for always-on, ultra-small voltage reference (VR) generators. Such VRs must consume very low power, generate a stable that is independent process, supply $(V_{DD})$ temperature variations, operate at V <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">DD</inf> . To overcome limitations traditional bandgap...

This paper presents a capacitor-less low-dropout voltage regulator (LDO) based on an NMOS pass transistor and dual-loop regulation. The first capacitively-coupled loop responds to fast change of load currents, whereas the second time-based provides high-precision regulation without requiring external clock. Our proposed LDO, implemented in 55nm CMOS, achieves 3ns response time 240mV undershoot when large transient step 0-35mA 2ns edge is applied. Moreover, our design stable over wide range...

This paper presents a scalable 16-channel neural recording chip enabling simultaneous acquisition of action-potentials (APs), local-field potentials (LFPs), electrode DC offsets (EDOs) and stimulation artifacts (SAs) without saturation. By combining DC-coupled Δ-ΔΣ architecture with new bootstrapping chopping schemes, the proposed readout IC achieves an area 0.0077mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> per channel,...

A series of (Ni/sub 75/Fe/sub 25/)/sub x/(SiO/sub 2/)/sub (1-x)/ films with different volume fraction x is fabricated by magnetron co-sputtering technique. The structure, magnetic and high frequency properties are investigated systematically X-ray diffraction, transmission electronic microscopy, vibrating sample magnetometer, resistivity complex permeability measurements. results show that the consist Ni/sub 25/ metal particles uniformly embedded in insulating SiO/sub 2/ matrix. exhibit...

This paper presents a capacitively-coupled chopper instrumentation amplifier (CCIA) for portable EEG detection devices. In this design, the current-reuse technology is adopted in core and ripple reduction loop (RRL) to cut down power consumption of whole system. A novel based on ping-pong auto-zeroing topology proposed reduce at output CCIA. It makes chopping be attenuated about 46 dB. system simulated 0.18 μm CMOS process. Simulation results show that CCIA achieves an equivalent input noise...

This paper presents a direct-digitalization front-end for wearable bio-signal recording. The proposed is built with 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">nd</sup> order hybrid-CTDT $\Delta \Sigma - \Sigma$ modulator, taking the benefits of oversampling and noise shaping. topology removes electrode DC offset shapes signals as well motion artifacts at input by adding $a\Sigma -$stage in feedback loop, while $\Sigma recovers bio-signals...

Abstract Excellent soft magnetic properties have been achieved in a wide metal volume fraction ( x ) range for as‐deposited (Ni 75 Fe 25 –(SiO 2 (1– granular films fabricated by magnetron sputtering. With changes from 0.81 to 0.52, the exhibit small coercivity H c not exceeding 5 Oe and high electrical resistivity ρ . The minimum value of 87.6 A m –1 was obtained sample = 0.81. At frequency lower than 550 MHz, real part μ ′ complex permeability keeps about 170 image ″ is less 26. Especially,...

In this paper we study the quantum selective repeat protocol of data link layer based on teleportation. When two sites are communicating in physical layer, sender divides a series qubits intom frames by adding auxiliary qubits. After continuously transmitting m frames, receiver judges whether he receives correct frame according to classical information provided sender. If returns confirmed using channel. not received, does return denial frames. The which must resend received confirm setting...

This paper presents a SAR ADC for biomedical application, which has strict limit on its power consumption. Thus, two techniques are introduced into design: novel ladder-based reconfigurable time domain (RTD) comparator is proposed to reduce the noise and adjust according inputs automatically; clock distribution circuit utilized save more than 55% The prototype chip designed fabricated in UMC 0.18μm technology. simulation results show that with supply voltage of 0.9V, consumes 1.07μW at...

A low-power high-resolution Delta-Sigma modulator for audio codec, designed in Global-Foundries BCD 0.18μm 1P4M CMOS process, is presented. The employs a fourth-order single-loop feedforward topology with 3bit-quantizer. novel structure of Switched-Opamp (SO) utilizing current-starvation and Slew-Rate (SR) boosting adopted to meet the requirements high performance fast settling time. opamp-shared technique two-step summation are used reduce power dissipation further. Meanwhile, improve...

A new built-in digital calibration method is proposed in this paper for a split capacitive DAC SAR ADCs. By using the LSB-side of CDAC to measure capacitor mismatch MSB-side, it saves any auxiliary and also reduces chip area. In design, part implemented by Verilog HDL synthesized Global Foundry 0.13 μ m CMOS technology. The simulation results show that with supply voltage 0.9V, ADC consumes 25.4 μW at sampling rate 238kS/s. And SNDR 68dB 15.12kHz input sinusoid signal method, showing...