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Record W2605309608 · doi:10.1002/9781118675601.ch2

Assembly and Structure in Native Cellulosic Fibers

2017· other· en· W2605309608 on OpenAlexaff
Wadood Y. Hamad

Bibliographic record

Venuenot available
Typeother
Languageen
FieldMaterials Science
TopicAdvanced Cellulose Research Studies
Canadian institutionsUniversity of British ColumbiaFPInnovations
Fundersnot available
KeywordsCelluloseDegree of polymerizationCrystallinityPolymerHemicelluloseCellulosic ethanolLigninAmorphous solidPolymerizationPolymer scienceCellulose fiberFiberChemical engineeringMaterials sciencePolymer chemistryMacromoleculeChemistryComposite materialOrganic chemistry

Abstract

fetched live from OpenAlex

Cellulose exists in nature as a polydisperse, linear, crystalline (polysaccharide) macromolecule of high molecular weight having a high degree of polymerization: typically between 10,000 and 15,000 glucose residues depending upon the source of cellulose. Cellulose, the principal structural component of wood, provides superior mechanical strength through its high crystallinity and molecular weight. The supermolecular arrangement of the polymer chains within the fibrillar and sub-fibrillar structure of the wall has been the subject of various theories. In a native cellulosic fiber, the number of long-chain cellulose molecules which pass through a given cross-section is approximately one or two thousand million. The matrix phase in a cellulosic fiber cell wall consists of relatively unoriented or amorphous, short-chained or branched polymers of various molecular species - lignin and hemicellulose and any other polymers such as pectopolyuronides that might be present in a given layer, plus all of the tiny voids and gases and adsorbed water associated with them.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.001
Threshold uncertainty score0.002

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.017
GPT teacher head0.307
Teacher spread0.290 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2017
Admission routes1
Has abstractyes

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