The QED Manifesto refers to a document created by the QED (Quality Education for All) movement, which advocates for high standards in educational practices. The manifesto outlines the essential principles and goals of the movement, emphasizing the importance of providing equitable, inclusive, and high-quality education to all individuals, regardless of their background. It typically addresses various aspects of education, including teaching methodologies, curriculum design, accessibility, and the role of technology in enhancing learning experiences.
Process validation is a systematic approach used primarily in the manufacturing and pharmaceutical industries to ensure that a specific process consistently produces a product that meets its predetermined specifications and quality attributes. The goal of process validation is to demonstrate that the processes are capable of consistently delivering products that are safe, effective, and of high quality.
The B-Method is a formal method used in software engineering for the specification, development, and verification of software systems. It is based on mathematical logic, particularly set theory and first-order logic, and emphasizes rigorous proofs of correctness. Here are some key aspects of the B-Method: 1. **Formal Specification**: The B-Method allows developers to specify the desired properties and behaviors of software systems formally.
SLAM stands for Simultaneous Localization and Mapping. It is a computational problem that involves creating a map of an unknown environment while simultaneously keeping track of the location of a device (such as a robot or a vehicle) within that environment. SLAM is widely used in robotics, autonomous vehicles, augmented reality, and other applications where navigation in an unfamiliar area is required.
Syntactic methods refer to approaches and techniques used in the analysis, processing, and generation of language based on its structure and grammatical rules. They focus on the formal aspects of languages, whether natural languages (like English, Spanish, etc.) or programming languages, emphasizing how words and symbols are arranged to form valid phrases, sentences, or expressions.
Operational semantics is a formal method in computer science used to define the meaning of programming languages and systems through the concept of state transitions. It describes how the execution of a program proceeds step by step, providing a precise description of how constructs in a language relate to their behavior during execution. The main ideas behind operational semantics include: 1. **States and Transitions**: It models the execution of a program as a sequence of states.
Refinement calculus is a formal method used in computer science for the specification and development of software systems. It is based on the principles of mathematics and provides a framework for the step-by-step refinement of abstract specifications into executable code. Here are some key features of refinement calculus: 1. **Abstract Specifications**: Refinement calculus begins with a high-level specification of what a program is supposed to do.
A rigorous approach to industrial software engineering involves applying disciplined, systematic, and methodical practices throughout the software development lifecycle. This approach aims to enhance the quality, reliability, and maintainability of software products while minimizing risks and costs. Key components of a rigorous approach to industrial software engineering include: 1. **Formal Methods**: Utilizing mathematical techniques and models to specify, develop, and verify software systems. Formal methods help in ensuring that systems meet their specifications precisely.
In computer science, semantics refers to the meaning of programs and programming languages. It is concerned with understanding what different constructs in a programming language do and how they behave when executed. Semantics defines how the elements of a programming language relate to what they represent, allowing for reasoning about the behavior and effects of programs.
A Ford circle is a geometric construct that is used in number theory to visually represent the fractions between 0 and 1. Specifically, for each positive fraction \( \frac{p}{q} \) (where \( p \) and \( q \) are coprime integers), the corresponding Ford circle is centered at \( \frac{p}{q} \) with a radius of \( \frac{1}{2q^2} \).
An irreducible fraction, also known as a simplified or reduced fraction, is a fraction in which the numerator and denominator are coprime, meaning they have no common factors other than 1. In simpler terms, an irreducible fraction cannot be simplified any further.
The lowest common denominator (LCD) is the smallest multiple that two or more fractions share in their denominators. Finding the LCD is particularly useful when you're trying to add, subtract, or compare fractions, as it allows you to express all fractions with a common denominator. To determine the LCD: 1. **List the multiples:** Find multiples of each denominator. 2. **Identify the least common multiple (LCM):** Look for the smallest multiple that appears in each list.
Corrosion fatigue is a failure mechanism that occurs when a material, typically a metal, experiences the combined effects of cyclic stress and a corrosive environment. This phenomenon can significantly reduce the lifespan of materials and components, as the presence of a corrosive medium accelerates the initiation and propagation of cracks under repeated loading conditions.
Fatigue testing is a type of mechanical testing used to assess the durability and lifespan of materials and components under cyclic loading conditions. The primary goal of fatigue testing is to determine how a material will behave when subjected to repeated stress or strain over time, which is critical in applications where components are expected to endure fluctuating loads, such as in aerospace, automotive, and structural engineering.
Fracture toughness is a property of materials that measures their ability to resist crack propagation when subjected to stress. It quantifies the material's resistance to fracture in the presence of pre-existing flaws such as cracks or voids. Fracture toughness is expressed as a critical stress intensity factor (K_c), which combines the effects of the applied stress, the size of the crack, and the material's properties.
Transgranular fracture refers to a mode of fracture in materials, particularly metals and ceramics, where the crack propagates through the grains of the material rather than along the grain boundaries. This type of fracture typically indicates that the material has a relatively high level of strength and ductility, as the fracture does not follow the path of least resistance. In transgranular fractures, the crack moves inside the grains, often resulting in fracture surfaces that show characteristic features according to the crystallographic orientation of the grains.
The Mocha Fracture Zone is a significant geological feature located in the southern part of the East Pacific Rise, off the coast of Chile. It is characterized by a series of linear fractures and fault lines on the ocean floor, which are associated with tectonic activity. This region is part of a complex system of tectonic plates and is influenced by the interactions between the Nazca Plate and the South American Plate.
The Fraunhofer Institute for High-Speed Dynamics, known as the Fraunhofer EMI (Erlangen, Germany), is part of the Fraunhofer Society, which is one of the leading organizations for applied research in Europe. Established to focus on high-speed dynamics and impact research, the institute conducts studies related to materials, structures, and processes under dynamic loading conditions.
Gaussian adaptation refers to a statistical technique or a family of methods used to adaptively modify a Gaussian distribution based on observed data. This concept is often applied in various fields, including machine learning, statistical inference, and signal processing. Here are a few contexts where Gaussian adaptation is relevant: 1. **Probabilistic Models**: In Bayesian statistics, Gaussian adaptation can be used to update the parameters of a Gaussian distribution as new data becomes available.
Pinned article: 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 3. Visual Studio Code extension installation.Figure 4. Visual Studio Code extension tree navigation.Figure 5. Web editor. 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.Video 4. OurBigBook Visual Studio Code extension editing and navigation demo. Source. - 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





