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Record W2375436538

Statistics and analysis of China's sulphur market in 2010

2011· article· en· W2375436538 on OpenAlexaboutno aff
Hui Hui

Bibliographic record

VenueSulphuric acid and industry · 2011
Typearticle
Languageen
FieldEngineering
TopicCivil and Geotechnical Engineering Research
Canadian institutionsnot available
Fundersnot available
KeywordsRenminbiChinaAgricultural economicsPhosphate fertilizerTariffFertilizerEconomicsAgricultural scienceGeographyEnvironmental scienceInternational tradeChemistry
DOInot available

Abstract

fetched live from OpenAlex

Statistics of China's sulphur import and analysis of domestic market in 2010 are carried out.China imported sulphur 10 489.8 kt in 2010,a decrease of 13.79%compared to 2009.Sulphur price reached its first peak in mid-March at about 1 600 RMB/t in East China market,and then began to fall due to decreased fertilizer demand and phosphate fertilizer price,in mid-July down to about 800 RMB/t,the lowest level in this year.So low price attracted a number of speculators entering market for building inventories,which brought about the second price peak of sulphur in around November at 1 580~1 600 RMB/t.At the end of the year,because of the adjusting of national phosphate fertilizer tariff,sulphur market fell into the downturn again.In 2010,the main sulphur suppliers for China were Saudi Arabia,Canada and Kazakhstan and China's sulphur purchase concentrated in the provinces of Jiangsu,Yunnan,Guizhou,Shandong,Hubei,el at.

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)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.050
Threshold uncertainty score0.099

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0050.007
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.001

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 head0.013
GPT teacher head0.220
Teacher spread0.207 · 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 designObservational
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
Published2011
Admission routes1
Has abstractyes

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