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Mathematical datasets, statistical benchmarks, probability, optimization, operations research
3,060 datasets
A research paper describes an optimization study for quantifying total phenolic compounds in jambolan (Syzygium cumini Lamark) pulp. The work compares extraction solvents like ethanol and methanol using liquid-liquid extraction and the Folin-Ciocalteau methodology. Three Central Composite Rotational Designs (CCRDs) were used to evaluate solvent concentration and mixing time.
Geomorphology and Sediment Transport in Keppel Bay, Central Queensland, Australia is a dataset from the Australian Ocean Data Network. It classifies seabed sediments into five distinct classes based on grainsize, chemical composition, and modeled seabed shear stress. The data was last updated on 2026-06-23.
36 young adults with dentofacial deformities were evaluated for facial aesthetics and skin features. The study, authored by Silmara Regina Pavani Sovinski, used the Orofacial Myofunctional Evaluation - MBGR Protocol and a developed facial aesthetic evaluation protocol. Results showed correlations between facial asymmetry, nasolabial angle, skin wrinkles, and age.
1,531 school children aged 6-17 from public schools in Cascavel, Brazil, participated in this cross-sectional epidemiological study. The research by Giseli Minatto found high body adiposity in 30.4% of the sample, with a greater prevalence among those of high socioeconomic status (33.3% vs 28.3%). It collected data on skinfold thickness, socioeconomic status, sexual maturation, and performance in physical tests like sit and reach, sit-ups, long jump, and shuttle run.
Tropical wheat breeding data from a study estimating genetic parameters and selection gain via Bayesian inference. The dataset includes grain yield per plot for 34 F2 populations, with heritability estimated at 0.51 and a genetic gain of 7.80% for selected populations. The research was authored by Henrique Caletti Mezzomo and is available via Open Access.
From 2010 to 2013, this study analyzed historical production data from approximately 404,000 pigs across 538 batches on 175 commercial farms in Paraná State, Brazil. The research by D.S. Borges identified and quantified 40 production factors to model their influence on daily feed intake and feed conversion ratio. The resulting models explained 25% and 46% of the variance for the respective metrics.
Text S1 is a supplementary document for a research paper by Neda Bagheri of the Massachusetts Institute of Technology. It contains data and code related to a dynamical systems model for enhancing oncolytic adenovirus therapy via MEK-inhibition. The document includes parameter estimation results, model fitness assessments, interpolation methods, and MATLAB code for an ordinary differential equation model.
A National Statistics time series from the UK Department for Education tracks the proportion of pupils making expected progress in English and mathematics between Key Stage 2 and Key Stage 4. The data is designated as official statistics and is published as a Statistical First Release. Its last update was recorded on 2026-07-08.
A 4.2 KB text file authored by Jamie Davis, last updated on 2026-05-31, details a bare-metal embedded signal processing module. The module implements a zero-heap, zero-copy sliding window linear detrending filter designed for real-time baseline wander cancellation in AC telemetry streams. It uses a single-pass regression solver and Q16.16 fixed-point arithmetic to subtract low-frequency disturbances like sensor drift.
Module 126 from the Davis Logic V2 project details a zero-heap, real-time allpass filter for spectral phase inversion in embedded systems. The 3.5 KB text file, authored by Jamie Davis and last updated in May 2026, describes a single-multiplier recursive topology that swaps phase profiles while keeping magnitude flat. Its design guarantees microsecond-range execution and uses hardware-level clamping to prevent overflow.
Jamie Davis authored a software module for a zero-heap, real-time First-Order Allpass Phase Equalizer designed for embedded systems. The component corrects timing and delay distortion in analog front-end circuits using a recursive single-pole allpass network. It was last updated on May 31, 2026, and is licensed under CC BY 4.0.
Module 123 from the Davis Logic V2 project details a zero-heap, real-time First-Order Phase-Lag Control Compensator for embedded systems. The component, authored by Jamie Davis and licensed under CC BY 4.0, provides a single-pole, single-zero difference network for high-frequency noise attenuation in feedback control loops. It was last updated on 2026-05-31.
Module 122 from the Davis Logic V2 architectural registry details a real-time First-Order Phase-Lead Control Compensator. The component is a zero-heap, zero-copy difference network designed for precise frequency-response shaping in bare-metal embedded systems. The 3.9 KB text file, authored by Jamie Davis and last updated on 2026-05-31, is licensed under CC BY 4.0.
A 4.7 KB text file containing C++ source code for a bare-metal embedded signal processing component. The module, authored by Jamie Davis and last updated on 2026-05-31, implements a zero-heap, zero-copy sliding window variance normalizer for automated gain control in streaming telemetry.
Module 116 details a zero-heap, zero-copy Lead-Lag Control Compensator designed for dynamic closed-loop response optimization in bare-metal execution grids. The component, authored by Jamie Davis and licensed under CC BY 4.0, processes telemetry error streams using a recursive formulation and maps data over 64-bit integer registers before final truncation to Q16.16 format. Its computational performance metrics include 0 bytes of heap usage, single-pass unrolled math tracks, and 32-bit hardware saturation clamping to prevent integer wrap-around errors.
A 3.3 KB text file authored by Jamie Davis and last updated on 2026-05-31. It contains the source code for a second-order infinite impulse response (IIR) bandpass filter designed for bare-metal embedded targets. The filter uses Q16.16 fixed-point arithmetic and is engineered for zero-heap, real-time operation.
New South Wales administrative boundaries for ABS Statistical Areas Levels 1-4. These geospatial datasets divide the state of NSW into standardized regions for collecting and reporting census and other official statistics under the Census and Statistics Act 1905. The data is part of the Australian Statistical Geography Standard (ASGS) and is published by Spatial Services (DCS).
A 3.8 KB text file containing a C++ implementation of a fixed-point sliding window moving median filter, authored by Jamie Davis and last updated on 2026-05-31. The module is designed for deterministic, zero-heap noise suppression in bare-metal embedded targets, using a Q16.16 fixed-point format and supporting window sizes from 3 to 15 taps.
Module 107 provides a 4.3 KB C++ implementation of a zero-heap, zero-copy sliding window RMS power estimator for bare-metal systems. Created by Jamie Davis and released under CC BY 4.0, it uses a single-pass square accumulator and a fixed-point Babylonian root solver to calculate real-time energy profiles. The component is designed to bypass floating-point hardware requirements and contains static parameters to eliminate dynamic memory allocation.
Module 106 from the Davis Logic V2 project provides a zero-heap, real-time First-Order Allpass Phase Shifter Filter for deterministic telemetry processing in bare-metal embedded systems. The module, authored by Jamie Davis and licensed under CC BY 4.0, uses a Q16.16 fixed-point format and a recursive difference equation to modify signal phase without affecting magnitude. The dataset, last updated on 2026-05 31, is a 3.5 KB text file.