The concept of Emergy (spelled with “m”!) and the emergy analysis
Bibliographic record
Abstract
<!--HTML--> In this lecture, I will introduce the unifying concept of emergy (from EMbodied enERGY), starting from the pioneering work by Howard T. Odum. The hierarchical representation of emergy flows and energy transformation networks will be shown to be a natural description of the complexity of systems, able to capture the structural features from which the system dynamics arises and at the same time to point out the role of leverage points in determining the capability of a system to rearrange and reorganize upon perturbations. The basics of emergy analysis will be presented, along with the associated algebra. Francesco Gonella short bio PhD in Physics at University of Padova, Italy. Excéllence Postdoctorale at the Université Laval, Québec City, Canada. Since 2016, Full Professor of Physics at the Department of Molecular Sciences and Nanosystems of the Ca’ Foscari University of Venice. After twenty years of activity as an experimental physicist (study of nanostructured glasses, artistic glasses and glasses for energy technologies), ten years ago I have shifted my interests to Systems Thinking and Emergy Analysis, applied to the study of the functioning and the integrated sustainability of systems. I am Director of the “International School on Emergy Accounting'', and member of the Executive Council of the International Society for the Advancement in Emergy Research. I teach Sustainability and Systems Thinking at the Beijing Normal University in China as a high-end foreign expert, and keep courses on the same topics at the Universities of Turin and Catania in Italy. I was Visiting Professor at Tokyo Institute of Technology, Japan, for two years, and Visiting Researcher at Vanderbilt University (Nashville, USA) and the University of Florida (Gainesville, USA). H-index=37 (2020, Scopus). Author or co-author of almost 200 publications in international peer-reviewed Journals. Invited lecturer in Universities in Canada, USA, Germany, India, Japan, China, Poland, France.
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 | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.014 |
| Scholarly communication | 0.005 | 0.015 |
| Open science | 0.001 | 0.004 |
| Research integrity | 0.002 | 0.005 |
| Insufficient payload (model declined to judge) | 0.012 | 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".