A treatise on the Howard system of ventilation, whereby it is proposed to expel foul air as fast, as generated, and admit pure air as fast, without sensible draught on the person.
Bibliographic record
Abstract
Ai a thorough knowledge of the subject of Ventilation concerns the ArchitectsMechanics and Builders of the Dominion of Canada more than any other class of the people, in that upon them devolves the work of ventilation, this little pamphl«t is most respectfully dedicated to them by •THE AUTHOU." That the breathing of air rendered impure from any cause is hurtful, and that the highest degree of health is only possible where to other favorable con- ditions is added that of a proper supply of pure air, might be inferred from phy- siological evidence of the paramount importance of proper aeration of the blood.Experience strengthens this inference and statistical inquiries on mortality prove beyond a doubt, that of the causes of death which usually are in action, impurity of the air is the most important.Indeed, observation confirms this,The air must be removed so immediately that there shall be no risk of a person breathing again his own expired air or that of another person.In hospitals, especially, it is desirable that there shall be no chance of the air of one sick person passing over the bed of another ; therefore the movement of the air should be rather vertical than horizontal, and as the expired air and all the exhalations from the body or bed clothes at first pass upwards from their levity it is desirabie that they should be discharged above and not c'rawn down agaifl past the patient."" In order to keep air in its necessary purity, it must be continually changing.Whatever way the air is supplied, certain conditions must be laid down ; the air which enters must itself be pure, its movements must be imperceptible, otherwise it will cause the sensation ot draught and will chill.It must bo diffused all through the room so that in every part movement shall be going on.In other words, the distribution must be perfect.A moving body of air sets in motion all air in its vieinity, it drives air before it, and at the same time causes a partial vacuum on either side of its own path, towards which all air in the vicinity flows at angles more or less approaohing right angles."-Parkes.
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 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 | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.005 | 0.015 |
| Scholarly communication | 0.005 | 0.003 |
| Open science | 0.002 | 0.003 |
| Research integrity | 0.005 | 0.009 |
| Insufficient payload (model declined to judge) | 0.012 | 0.005 |
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".