Innovative Membran‐Stadiondächer in Kiew, Warschau und Vancouver
Bibliographic record
Abstract
Abstract Während früher oft unter freiem Himmel gespielt wurde, haben die meisten Stadien heutzutage mindestens überdachte Ränge. Dies ist nicht nur Ausdruck eines gesteigerten Komfortbedürfnisses der Zuschauer, sondern eine zentrale Forderung der FIFA für Austragungsorte von internationalen Sportereignissen. Neben dem Witterungsschutz stehen hier vor allem die Lichtverhältnisse im Inneren im Mittelpunkt des Interesses – es geht um die Wachstumsbedingungen für den Rasen, um eine Reduktion des Aggressionspotenzials, aber vor allem um möglichst hochwertige Fernsehbilder: Stützenfreiheit und gleichmäßige Ausleuchtung mit begrenzten Kontrasten. Hier kommt ein zentraler Vorteil von biegeweichen Membranwerkstoffen zum Tragen: Transluzenz, zumeist mit hohem diffusen Anteil. Innovative membrane stadia roofs in Kiev, Warsaw and Vancouver. Due to improved comfort levels and FIFA requirements, most new or rebuilt stadia in the world have their seats covered by a roof. This protection against weathering also significantly influences the indoor light situation. Adequate natural light levels are an important condition for the lawn to grow but also reduce visitor’s aggression potential and – of most importance – are the key to high quality television images in connection with a column‐free space. Here, membrane materials show their key advantages: very large column‐free span width and very even and low‐contrast light distribution through highly diffusing translucent textiles and foils.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.009 | 0.002 |
| Scholarly communication | 0.003 | 0.000 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.011 | 0.002 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".