This paper presents a dual-mode clock-enhanced N-path notch filter that offers high linearity. In Mode 1, the clock swing boost mode, the boost module extends the clock swing from VDD to 2 × VDD, thereby significantly improving the filter&rsquo...
An ultra-low-voltage low-power switched-capacitor (SC) delta-sigma (ΔΣ) modulator running at a supply voltage as low as 300 mV is presented for biomedical implant devices, e.g., cardiac pacemakers. To reduce the supply voltage, an inverter-based ampl...
This paper proposes an on-chip, ultra-low-power cold-start circuit for a low-voltage, fast start-up of a boost converter for autonomous thermal energy harvesting from slight temperature differences. An improved charge transfer obtained from a Schmitt...
Long-term observation of single-cell oscillations within tissue networks is now possible by combining bioluminescence reporters with stable tissue explant culture techniques. This method is particularly effective in revealing the network dynamics in...
This paper presents a switched inductor (SI) DC–DC boost regulator designed for thermoelectric generator (TEG) applications. To boost and regulate the output voltage, two feedback loops are implemented which control the duty cycle of the SI clo...
Background/Objectives: Circadian clocks are endogenous systems that regulate numerous biological, physiological, and behavioral events in living organisms. Aging attenuates the precision and robustness of circadian clocks, leading to prolonged and da...
Epigenetic clocks are valuable tools for estimating both chronological and biological age by assessing DNA methylation levels at specific CpG dinucleotides. While conventional epigenetic clocks rely on genome-wide methylation data, targeted approache...
To get a better tradeoff between the transient performance and current efficiency of Digital Low-Dropout (DLDO) regulator, this paper proposes an all-digital Low-Dropout (LDO) regulator with adaptive clock technique. The sample clock is supplied by a...
To resolve the dilemma in any post-processing strategy, i.e., the difficulty of monitoring the real-time time and frequency signals in a timely manner, real-time GPS time and the frequency transfer have recently become trending topics. Unfortunately,...
A double-edge-triggered digital low dropout regulator (DLDO) is proposed with a built-in adaptive voltage-controlled oscillator (VCO) clock (AVC) for a system-on-chip (SoC) application. To achieve a fast transient response, the main comparator genera...
Micromachined gyroscopes require high voltage (HV) for actuation and detection to improve its precision, but the deviation of the HV caused by temperature fluctuations will degrade the sensor’s performance. In this paper, a high-voltage tempera...
A gastric acid battery and its charge storage in a capacitor are a simple and safe method to provide a power source to an ingestible device. For that method, the electromotive force of the battery should be boosted for storing a large amount of energ...
High-accuracy and dependable prediction of the bias of space-borne atomic clocks is extremely crucial for the normal operation of the satellites in the case of interrupted communication. Currently, the clock bias prediction for the Chinese BeiDou Nav...
The histogram of oriented gradients is a commonly used feature extraction algorithm in many applications. Hardware acceleration can boost the speed of this algorithm due to its large number of computations. We propose a hardware–software co-des...
Robust and accurate pose estimation is crucial for many applications in mobile robotics. Extending visual Simultaneous Localization and Mapping (SLAM) with other modalities such as an inertial measurement unit (IMU) can boost robustness and accuracy....
This work presents a fully integrated boost switched-capacitor regulator in 40 nm CMOS technology. In addition to using small MOS + MOM capacitors to reduce the area, the regulator utilizes a pseudo-6-bit analog-to-digital converter at the converter&...
17 December 2023
A low-power and low-jitter 1.2 GHz Integer-N PLL (INPLL) is designed in a 65 nm standard CMOS process. A novel high-gain sampling phase detector (PD), which takes advantage of a transconductance (Gm) cell to boost the gain, is developed to increase t...
This paper proposes a 10-bit 400 MS/s dual-channel time-interleaved (TI) successive approximation register (SAR) analog-to-digital converter (ADC) immune to offset mismatch between channels. A novel comparator multiplexing structure is proposed in ou...
This paper presents a passive wireless humidity sensor for concrete monitoring. After discussing the transmission of electromagnetic wave in concrete, a novel architecture of wireless humidity sensor, based on Ultra-High Frequency (UHF) Radio Frequen...
This paper proposes a one-dimensional (1D) maximum power point tracking (MPPT) design which only requires measurement of one parameter (the input voltage of a switched-capacitor charge pump) for calibrating a power converter including the charge pump...
The relationship between urban waterfront spaces and health is widely recognized. However, the relative importance and nonlinear associations of specific attributes with residents’ physical health remain unclear. Drawing on survey data from 375...
This paper presents an incremental second-order delta-sigma modulator with a coarse-fine input buffer in 180-nm CMOS. The modulator’s architecture was implemented as a second-order cascade of integrators with a feedback structure. The switched-...
Multistep flow catalytic reactions in organic chemistry integrate multiple sequential organic reactions to enhance cost-efficiency, time management, and labour resources, all while boosting effectiveness and environmental sustainability. Similar to h...
What does a short sensor record support, and what do its faults cost? We retained 762 h of a 919-h wet-season window (40 calendar dates) on a 12-m Ku-band dish in Bangkok; Ku-band carries Internet-of-Things backhaul. The novelty is quantifying, on th...
With the rise of new technologies, such as the Internet of Things, raising the productivity of agricultural and farming activities is critical to improving yields and cost-effectiveness. IoT, in particular, can improve the efficiency of agriculture a...
NAD+ is a fundamental molecule participating as a redox cofactor in several metabolic reactions and has a neuroprotective role associated with oxidate stress. Despite its critical role, NAD+ levels sharply decline with age, contributing to the pathog...
Pack-side current, voltage and battery-state data can quantify charging episodes during driving, but an event-level model must not be credited for reconstructing its target from post-event electrical summaries. We re-examined 8181 negative-current in...
The exponential growth of data-driven applications has intensified performance demands on database systems, where cache management represents a critical bottleneck. Traditional cache replacement policies such as Least Recently Used (LRU) and Least Fr...
Chronological age can be estimated from molecular profiles; however, predictive accuracy alone does not establish a biologically validated ageing clock. We therefore evaluated whether plasma protein intensities measured by data-independent acquisitio...
Background: The clinical adoption of artificial intelligence in emergency departments (ED) is hindered by the “black-box” nature of complex models and retrospective data leakage from downstream laboratory results. Aims: We aimed to develo...
Tree ensembles—Random Forests (RFs) and Gradient Boosting Machines (GBMs)—often stabilize before all trees are evaluated. We study early stopping as a nonparametric change-point problem on prediction increments. The P2-STOP method family...
Background: Longitudinal severity assessment may provide more informative risk stratification than reliance on a single admission score in intensive care. This study developed and internally validated an explainable machine learning framework for pre...
In high-throughput, high-concurrency, low-latency cryptographic scenarios, the throughput of public-key cryptography is a decisive performance metric. As China’s national elliptic curve cryptography standard, the SM2 signature algorithm has bee...