Mason's Gain Formula is a method used in control systems and graph theory to find the transfer function of a linear time-invariant system represented as a signal flow graph.
A microgrid is a localized energy system that can operate independently or in conjunction with the main power grid. It typically consists of a variety of distributed energy resources (DERs), such as solar panels, wind turbines, batteries, and combined heat and power (CHP) systems. Microgrids can support local energy needs, improve energy resilience, and provide benefits like reduced energy costs, increased renewable energy utilization, and enhanced grid stability.
Minimum energy control is a control strategy primarily used in systems and processes where the objective is to minimize energy consumption while achieving desired performance levels. This concept is particularly relevant in fields such as aerospace, automotive, robotics, and process control. ### Key Aspects of Minimum Energy Control: 1. **Objective**: The main goal is to determine control inputs that minimize energy usage while maintaining the system’s performance, such as stability, tracking, or adherence to specified constraints.
Minor loop feedback is a concept commonly used in control systems, particularly in the context of feedback control in electrical circuits and systems. It refers to a type of feedback loop that operates on a subset of the overall control system, specifically within a single control path or sub-system. In the context of major and minor loop feedback: 1. **Major Loop**: This typically refers to the primary feedback loop that encompasses the overall control dynamics of a system.
Ciro's Edict #5 Improve header summary display by
Ciro Santilli 37 Updated 2025-07-11 +Created 1970-01-01
Before
. After
. Added font awesome icons. github.com/ourbigbook/ourbigbook/issues/151
Didn't manage to subset, but so be it for now: stackoverflow.com/questions/62395038/how-can-i-export-only-one-character-from-ttf-woff-file-to-avoid-load-unnecessa/71197892#71197892
Ciro's Edict #5
Ciro Santilli 37 Updated 2025-07-11 +Created 1970-01-01
\Include
headers show on table of contents work for cirosantilli.com Make by One of the key advances of the previous update was to show include headers on the table of contents.
This was to allow splitting source files freely.
While that goal was in principle achieved in that commit, when I went ahead to split the huge index of cirosantilli.com into multiple files, I notice several bugs that took a week to fix.
After all of these were solved, I finally managed to split the README at: github.com/cirosantilli/cirosantilli.github.io/commit/84c8a6e7fdbe252041accfb7a06d9b7462287131 and keep the previous desired output. You can now see that the README contains just:
\Include[ciro-santilli]
\Include[science]
\Include[mathematics]
\Include[technology]
\Include[art]
This split led to a small positive modification of the output as follows. Previously, a section such as "Quantum Electrodynamics" would have been present in the monolithic README.ciro as:If you visited cirosantilli.com/quantum-electrodynamics, you would see see a link to the "nosplit" version, which would link you back to cirosantilli.com#quantum-electrodynamics, but that is not great, since this is was a humongous page with all of the README.ciro, and took long to display.
= Quantum electrodynamics
After the split,
= Quantum electrodynamics
is present under science.ciro
, and the nosplit version is the more manageable cirosantilli.com/science#quantum-electrodynamics.The key changes that were missing for that to happen were:
Model Predictive Control (MPC) is a sophisticated control strategy widely used in industrial processes and systems. It involves predicting the future behavior of a system using a dynamic model and optimizing control actions over a specified horizon. Here are the key components and features of MPC: 1. **Model-Based Approach**: MPC relies on a mathematical model of the system being controlled. This model can be either linear or nonlinear and is used to predict future states of the system based on current inputs and states.
Moving Horizon Estimation (MHE) is an advanced state estimation technique commonly used in control engineering and systems dynamics. It is particularly useful in situations where system states are not directly measurable, such as in nonlinear, time-varying, or complex systems. ### Key Concepts: 1. **Finite Horizon**: MHE operates over a finite time horizon, which means it considers a certain period in the past (called the moving horizon) to estimate the current state of a system.
"Multiple models" can refer to several concepts across different fields, such as statistics, machine learning, simulation, and modeling. Here are a few interpretations: 1. **Statistics and Machine Learning**: In this context, multiple models refer to using more than one statistical or machine learning model to analyze data or make predictions. This can involve techniques such as ensemble learning (e.g., Random Forests, Boosting) where multiple models are combined to improve accuracy, robustness, and generalization of predictions.
Self-organized criticality (SOC) is a concept in physics and complex systems theory that describes how certain systems naturally evolve into a critical state where minor changes can lead to significant, nonlinear events, such as avalanches, earthquakes, or market crashes. In a self-organized critical system, components interact in a way that the system accumulates energy or information over time, leading it to a critical threshold where a small trigger can cause a large-scale response.
OGSM stands for Objectives, Goals, Strategies, and Measures. It is a strategic planning framework used by organizations to define their direction and ensure alignment among their teams. Here’s a breakdown of each component: 1. **Objectives**: These are broad, overarching statements that set the vision and ultimate aims of the organization. Objectives provide a clear purpose and direction. 2. **Goals**: Goals are specific, measurable targets that help achieve the overall objectives.
The Observability Gramian is a concept used in control theory and system analysis to assess the capability of a system to be reconstructed or observed from its outputs over a given time period. Specifically, it provides a way to quantify how well a system's state can be inferred from its outputs.
The term "online model" can have different meanings depending on the context in which it is used. Here are a few common interpretations of the term in various fields: 1. **Online Learning Model**: In education, an online model refers to a system where courses or educational programs are delivered over the internet. This model allows students to access learning materials, participate in discussions, and complete assignments from anywhere, often at their own pace.
Added
ourbigbook --format-source
automatic code formatting. I implemented it for the following reasons:- I want to do certain automatic modifications to source code on web, e.g.:
- later on, much later, this will allow WYSIWYG export to plaintext
This also ended up having one unexpected benefit: whenever a new feature is added that deprecates an old feature, by converting the large corpus from github.com/cirosantilli/cirosantilli.github.io to the new feature I can test the new preferred feature very well.
For example, converting
\x[blue cat]
en masse to the new insane syntax <blue cat>
found several bugs with the new insane syntax.This seemed somewhat easy at first, so I started it as a way of procrastinating more urgent Web features (web scares me, you know), but it ended being insanely hard to implement, because there are many edge cases. Also, most bugs are not acceptable, as they would corrupt your precious source code and potentially output.
But well, it is done!
Standard Telephones and Cables (STC) is a company that was historically involved in the manufacturing of telecommunications equipment and related technologies. Founded in the early 20th century, STC became known for its production of telecommunication systems, cables, and devices, contributing to the development of telephone networks and infrastructure. The company played a significant role in the telecom sector, particularly in the UK, supplying equipment for both domestic and international markets.
Pinned article: ourbigbook/introduction-to-the-ourbigbook-project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.Figure 3. Visual Studio Code extension installation.Figure 5. . You can also edit articles on the Web editor without installing anything locally. Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension. - Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact