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The Physical Properties of Compost

2003· article· en· W2064388382 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueCompost Science & Utilization · 2003
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicComposting and Vermicomposting Techniques
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsCompostBulk densityWater contentParticle densityAerationEnvironmental scienceMoistureMaterials scienceProcess engineeringSoil scienceWaste managementSoil waterEngineeringComposite materialPhysicsGeotechnical engineering

Abstract

fetched live from OpenAlex

AbstractThe trend toward more efficient methods of compost production and handling requires a complete understanding of the process, the materials involved, and the physical parameters of the materials such as moisture content, bulk density, and various mechanical properties. These properties influence the process and product in various ways from aeration effectiveness to compost-soil interactions. This paper reviews the influence of the physical properties of composting materials on the production and utilisation of compost. Methods for measuring moisture content, bulk density, particle size distribution, airflow resistance and the thermal and optical properties of compost are summarised. In addition to techniques for determining theses properties, typical values for particle density, porosity, and mechanical and electrical properties of composting materials are presented. Empirical formulas also are included for bulk density, particle density, free air space, and specific heat capacity, as cited in the reviewed literature. In the majority of cases, there is a lack of a specific standard for describing and measuring compost physical properties. In order to achieve uniformity in reporting and comparability of data from various sources, acceptable standard methods of measuring compost properties need to be adopted.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.029
Threshold uncertainty score0.809

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.077
GPT teacher head0.276
Teacher spread0.198 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it