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Earlier sources: Hardware
Hardware is the physical foundation of computing: chips, sensors, devices, networks, and the processes that manufacture them. Follow semiconductor research, compute architectures, and engineering developments alongside their software and energy connections.
SYMTRI organizes observations from public sources into a living map. Connections reflect shared subject matter; they do not establish causation or endorse a source.
Open in the map ↗514 classified signals in the fourteen-day window. Recent momentum: steady. These counts include signals awaiting readable evidence.
Earlier sources
Up to ten sources with readable evidence, ordered by their feed timestamp. These archive sources can be older than the live fourteen-day window. This list is a sample, not a measure of total activity. Dates distinguish paper publication, repository creation, model/dataset activity, Hacker News posts, and KEV catalog additions. “First archived” records when SYMTRI first stored the signal.
- OpenAlex · Published · First archived
TA-BI: Reference Implementation in OMNeT++/INET for Reactive Routing Support in Wireless and Mobile Wireless Sensor Networks ↗
This article reports an OMNeT++ 6.3.0/INET 4.5.4 implementation of the TA-BI (trust-aware behavioral intelligence) observation-to-decision contract. Typed records separate current node Behavioral Information (BI), reported NeighborBI, historical node Trust and candidate-specific RouteBI and RouteScore. Evidence eligibility retains availability, age, support, confidence, provenance and version information; missing evidence is not replaced by a neutral score. The Ad hoc On-Demand Distance Vector (AODV) adapter applies native admission, destination-sequence freshness and minimum-hop precedence be…
- OpenAlex · Published · First archived
Multi-Parameter Estimation for κ-μ Shadowed Fading Model in Wireless Sensor Networks ↗
In wireless sensor networks (WSNs), reliable link-quality estimation depends strongly on channel characteristics, which can be flexibly captured by the κ-μ shadowed fading model in complex closed metallic cavity (CMC) environments. However, a fundamental tension arises: conventional numerical methods for estimating the parameters of this model generally rely on the iterative solution of coupled nonlinear moment equations, which may introduce considerable computational cost and sensitivity to initialization and convergence settings, thereby limiting their applicability to rapid channel characte…
- OpenAlex · Published · First archived
An Energy Efficient and Network Lifetime-Aware Routing Protocol for Wireless Sensor Networks ↗
In wireless sensor networks (WSNs), energy management is a major problem because of the sensors' limited battery life, which reduces the network's longevity. The Green Multi-Mechanism-Low Energy Adaptive Clustering Hierarchy (GME-LEACH) routing protocol presented in this paper combines four complementary mechanisms into a single clustering framework: adaptive CH rotation, sleep-awake scheduling, hybrid multi-hop communication, and multi-criteria cluster-head (CH) selection. To find energy-efficient and strategically placed cluster heads, the suggested CH selection method takes into account res…
- OpenAlex · Published · First archived
Single-channel wearable EEG for ADL recognition in Healthy and Epileptic cohorts using MODWT-MRA and machine learning ↗
Wearable single-channel EEG is increasingly used to monitor epileptic patients outside the clinic, but the physical activity of daily living (ADL) continuously shapes the recorded signal. This activity-coupled variability is typically discarded as noise, even though it holds recoverable contextual information. Until now, EEG-based human activity recognition (HAR) has been studied almost exclusively in healthy participants under controlled lab conditions, leaving ADL recognition in clinical epileptic populations unaddressed. This study introduces a single-channel frontal EEG framework for ADL r…
- OpenAlex · Published · First archived
Freestanding PZT Films for Integrated Wearable Sensing and Intelligent Acoustic Recognition ↗
ABSTRACT Flexible, self‐powered sensors are pivotal for next‐generation human‐machine interfaces. However, substrate‐induced clamping fundamentally restricts their electromechanical performance by suppressing longitudinal deformation, thereby reducing signal sensitivity. Here, we report a high‐performance freestanding PbZr 0.52 Ti 0.48 O 3 (PZT) thin film based on a layered Mica/Pt/LaNiO 3 heterostructure. The complete release of substrate constraints unlocks markedly enhanced properties, including a 1.4‐fold increase in remanent polarization ( P r = 54 vs. 40 µC cm − 2 ), a 2.2‐fold enhanceme…
- OpenAlex · Published · First archived
Triboelectric Nanogenerator-Based Stretch Sensor ↗
Triboelectric nanogenerators (TENGs) have been extensively investigated as both energy harvesters and self-powered sensors. While their application as force sensors has been widely reported, the use of TENGs as stretch sensors remains relatively unexplored. Stretch sensors are important for monitoring human joint and limb movements, with significant potential in rehabilitation applications such as post-stroke therapy and recovery following knee surgery. In this work, we present a preliminary TENG-based stretch sensor comprising a multi-triangular elastomer structure and an arched copper electr…
- OpenAlex · Published · First archived
Reliability and measurement error of a wearable sensor for tibial acceleration and cadence in recreational runners ↗
Abstract Running is an increasingly popular sport; however, injuries remain common concern among runners. The impact of tibial acceleration and cadence at different running stages has been the focus of ongoing research. While wearable devices have been developed to analyze running biomechanics, their reliability requires further investigation. This study aimed to evaluate the reliability and measurement error of the TgForce ® device in assessing tibial acceleration and cadence in runners. A cross-sectional study was conducted with 43 rearfoot-strike runners. Participants ran on a motorized tre…
- OpenAlex · Published · First archived
EntroMEMS: Proof-of-Concept Integration of Quantum-Derived Initialization and MEMS Entropy Acquisition on an ESP32 ↗
Resource-constrained edge devices may have limited entropy during startup. EntroMEMS is a proof-of-concept architecture combining quantum-derived initialization material with candidate physical entropy from three microelectromechanical systems (MEMS) gyroscopes on an ESP32. A 1024-bit quantum-derived pool was embedded in firmware; its first 128 bits initialize the prototype generator. This does not constitute secure provisioning. The revised V2 acquisition retains two least significant bits from each gyroscope axis, yielding 18 binary samples per cycle. Sequential non-IID assessments using the…
- OpenAlex · Published · First archived
A Non-SOGI Single-Phase Frequency-Locked Loop Based on Synchronous Frequency Tracking Filter with Enhanced Immunity to Sensor-Induced DC Offsets ↗
In single-phase grid-connected converters, a second-order generalized-integrator-based frequency-locked loop (SOGI-FLL) is widely used to meet synchronization requirements due to its structural simplicity. However, since the quadrature-phase form of the input signal in this method exhibits a low-pass filter characteristic, its immunity to harmonic distortion and sensor-induced DC-offset errors is limited. To address these problems and improve synchronization accuracy under weak grids, this study proposes a non-SOGI frequency-locked loop (FLL) method based on a synchronous frequency tracking fi…
- OpenAlex · Published · First archived
Powering the Wearable Era: The Quest for High‐Strain Stretchable Polymer Solar Cells ↗
The rise of wearable electronics is driving demand for new forms of solar cells with both high power conversion efficiency (PCE) and high strain tolerance. However, these properties are often inherently conflicting: state‐of‐the‐art organic/polymeric photovoltaic materials often rely on rigid or highly fused conjugated backbones, yielding fracture strains below 10% in high‐efficiency systems with PCEs above 21%. This article critically examines mechanical optimization strategies for emerging high‐strain stretchable polymer solar cells (HS‐PSCs), comparing two common polymeric blend architectur…
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How to assess evidence about Hardware
Check each original source for its methods, release status, limitations, and supporting data. A repository announcement, a preprint, and a published study provide different kinds of evidence. SYMTRI’s subject classification helps discovery; it does not independently validate the source’s claims.
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