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Record W2866612414

New Insights into Nucleation

2008· book· en· W2866612414 on OpenAlexaboutno aff
David Ghosh

Bibliographic record

Venuenot available
Typebook
Languageen
FieldEarth and Planetary Sciences
Topicnanoparticles nucleation surface interactions
Canadian institutionsnot available
Fundersnot available
KeywordsNucleationSupersonic speedPetrochemicalNozzleImpurityNatural gasParticle (ecology)ChemistryRaw materialMaterials scienceChemical engineeringThermodynamicsProcess engineeringOrganic chemistryEngineeringPhysics
DOInot available

Abstract

fetched live from OpenAlex

Natural gas currently supplies ~23% of world energy needs. In addition to methan, raw natural gas contains water, higher hydrocarbons, and impurities that must be removed before the gas is transported and used. Supersonic nozzle separators for natural gas are currently being developed to remove impurities and the first step is to cool the gas to induce droplet formation and growth. Thus, understanding particle formation of the n-alkanes and n-alcohols in supersonic flows has important technological applications in the petrochemical industry and provides a way to replace chemical separation processes with one that is more environmentally benign. In this work, the homogeneous nucleation rates of the n alkanes and n-alcohols have been determined by combining information from two sets of supersonic Laval nozzle expansion experiments under almost identical conditions. In the first experiments static pressure measurements were conducted to determine the thermodynamical properties related to the nucleation event. In the second set of experiments Small Angle X ray Scattering is applied to investigate the geometric properties of the aerosol particles.

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)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.005
Threshold uncertainty score0.016

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0010.002
Scholarly communication0.0020.005
Open science0.0020.001
Research integrity0.0020.004
Insufficient payload (model declined to judge)0.0050.003

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 head0.015
GPT teacher head0.212
Teacher spread0.197 · 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 designTheoretical or conceptual
Domainnot available
GenreOther

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
Published2008
Admission routes1
Has abstractyes

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Same topicnanoparticles nucleation surface interactionsFrench-language works237,207