- aria-live #
- An ARIA attribute that tells screen readers to announce a live update to a page region. Used on this site for the spectrogram and sensor-toy status text, the publication-filter chip count, and any other element that updates without a page navigation.
- Condition monitoring #
- The practice of measuring an asset's operating state continuously (or near-continuously) to detect degradations before they become failures. Distinct from periodic inspection in that the data is always-on; distinct from protection in that the goal is early detection rather than safe shutdown.See: SSL substation case study · AcoustR
- Dead-band #
- A range of values across which a signature is suppressed from firing — typically because the values fall during a known confounder (a planned test, scheduled maintenance, normal startup behaviour) that would otherwise look like a fault. Dead-bands are the part of a condition-monitoring stack that the operator team most often has the strongest opinion about.
- Drop-cap #
- A decorative oversized first letter of a paragraph. On this site, the standfirst on every long-form piece carries one — a rust-coloured Fraunces 300 letter, two lines tall.
- ECS · Environmental Control System #
- The aircraft subsystem that conditions bleed air for cabin pressurisation, temperature regulation, and ventilation. On a Boeing 737-class aircraft, the ECS is a tightly-coupled stack of compressors, heat exchangers, valves, and turbines — the worked example throughout the doctoral thesis.
- EPS · Electrical Power System #
- The aircraft subsystem that generates, distributes, and conditions electrical power to all other systems. One of the four subsystems in the cross-subsystem MOSOF evaluation in the 2026 Sensors paper.
- IVHM · Integrated Vehicle Health Management #
- The systems-engineering discipline of combining sensors, signal processing, diagnostic algorithms, and decision logic into a coherent stack that monitors a vehicle's health and surfaces actionable information. Cranfield University's IVHM Centre is the academic home of the doctoral research behind this site.See: /expertise/ivhm
- Knee point #
- The point on a Pareto front where the slope changes from steep to shallow — past which one more unit of one objective costs an unreasonable amount of the other. Stakeholders' friend; usually identified by inspection rather than computation.See: Pareto thinking belongs everywhere
- MOSOF · Multi-Objective Sensor Optimisation Framework #
- A framework for choosing sensor configurations on a complex engineering asset by treating sensor selection as a multi-objective optimisation problem. Introduced in Burak Suslu's doctoral programme, peer-reviewed across two papers in Sensors (MDPI). Outputs a Pareto front, not a single answer; stakeholders pick from the front with the trade-offs visible.See: /mosof · thesis
- NDCI · Normalised Diagnostic Contribution Index #
- A scoring index that quantifies how much a candidate sensor contributes to a system's overall diagnostic capability — normalised so heterogeneous sensors and configurations of different sizes can be compared. The second of the two doctoral contributions; closes the long-standing ambiguity in sensor-design literature about what "good sensor" actually means.See: /ndci
- NSGA-II #
- The Non-dominated Sorting Genetic Algorithm II, introduced by Deb et al. in 2002. The standard kit for multi-objective evolutionary optimisation; uses fast non-dominated sort, crowding-distance selection, simulated-binary crossover, and polynomial mutation. The search engine used in MOSOF.
- Pareto front #
- The set of all non-dominated points across the objective axes of a multi-objective problem — i.e. the set of options where you cannot improve any one objective without making another worse. Named after Vilfredo Pareto, the Italian economist who first formalised the construct in the 1890s.
- SESAC · Sensor Selection And Evaluation Capability #
- Cranfield University's IVHM Centre digital-twin platform for aircraft subsystems. High-fidelity component models plus a fault-injection layer; the platform on which MOSOF was validated against the B737-800 ECS, Engine, Fuel, and EPS subsystems.
- Signature library #
- A curated set of named patterns across pairs and triplets of channels, each corresponding to a known degradation mode. The operator-facing layer on top of raw sensor data; the artefact most condition-monitoring stacks ship without and most operators wish they had.See: SSL substation case study
- Standfirst #
- The opening paragraph of a long-form piece, set wider and looser than body type, traditionally with a drop-cap. Lead-paragraph in journalistic terms. Every long-form piece on /writing carries one.
- View Transitions #
- A web-platform API (cross-document) that animates the swap between two pages on internal navigation. Enabled site-wide via the
@view-transition { navigation: auto }CSS rule; falls back to a Settle-out / Settle-in pair via motion.js where the API isn't supported.
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