SIMNET (Simulated Network) is a distributed simulation environment originally developed for training military personnel, particularly for tank warfare. It allows different users to connect over a network and participate in realistic combat scenarios using simulators. The goal of SIMNET is to create a virtual battlefield where participants can operate vehicles, command units, and interact with others in real-time.
A polygenic score (also known as a polygenic risk score or PRS) is a numerical value that reflects an individual's genetic predisposition to a particular trait or disease. It is calculated based on the cumulative effects of multiple genetic variants, each of which may contribute a small amount to the overall risk or expression of that trait.
Strongly regular graphs are a special class of graphs characterized by their regularity and specific connection properties between vertices. A graph \( G \) is called strongly regular with parameters \( (n, k, \lambda, \mu) \) if it satisfies the following conditions: 1. **Regularity**: The graph has \( n \) vertices, and each vertex has degree \( k \) (i.e., it is \( k \)-regular).
The Iofinova–Ivanov graph is a type of vertex-transitive graph that is defined using a specific set of rules based on combinatorial properties. The 110-vertex version of this graph specifically contains 110 vertices and has edges defined through particular mathematical relationships.
The Coxeter graph is an important concept in the fields of algebra, geometry, and graph theory. Specifically, it is a particular type of graph that represents the symmetric group and the properties of certain mathematical structures, particularly in relation to Coxeter groups. Here are some key features of the Coxeter graph: 1. **Definition and Structure**: The Coxeter graph is a finite undirected graph with 12 vertices and 18 edges.
A Platonic graph is a representation of a Platonic solid, which are the five regular, convex polyhedra that can exist in three-dimensional space. These solids are characterized by having faces that are congruent regular polygons and the same number of faces meeting at each vertex. The five Platonic solids are: 1. Tetrahedron (4 triangular faces) 2. Cube (6 square faces) 3. Octahedron (8 triangular faces) 4.
A Sudoku graph is a mathematical representation of a Sudoku puzzle using graph theory concepts. In this representation, the elements of the puzzle—such as the numbers in the grid—are mapped to vertices (or nodes) in a graph, and the constraints of Sudoku are represented by edges connecting those vertices. ### Basic Structure of a Sudoku Graph: 1. **Vertices**: Each cell in the Sudoku grid can be represented as a vertex.
PC strand, or prestressed concrete strand, is a type of high-strength steel wire strand used in the construction of prestressed concrete structures. It is primarily employed in the production of precast concrete elements and in post-tensioned concrete applications. Here are some key points about PC strand: 1. **Composition**: PC strands are typically made from multiple high-strength steel wires twisted together. The strands are often coated with a protective layer to prevent corrosion.
Eurocode 7, formally known as EN 1997, is a part of the Eurocode standards that deals with geotechnical design. It provides a comprehensive framework for geotechnical engineering, focusing on ensuring safety, serviceability, and durability in the design of structures in relation to the ground and soil conditions.
Prestressed concrete construction is a technique used to enhance the strength and performance of concrete structures. This method involves the application of a pre-compression force to the concrete before it is subjected to external loads. The primary goal of prestressing is to counteract tensile stresses that occur when loads are applied, thus improving the structural performance and durability of the concrete.
BS 8110 is a British Standard that provides guidelines for the design and construction of structural concrete. Officially known as "BS 8110: Structural use of concrete," this standard specifies the principles and requirements for designing concrete structures to ensure safety, serviceability, and durability. The standard covers various aspects of concrete design, including: 1. **Material Specifications**: It outlines the requirements for concrete and reinforcing materials. 2. **Structural Analysis**: The methods to analyze structural behavior under loads.
Crack spacing in reinforced concrete refers to the distance between individual cracks that form in a concrete element, such as a slab, beam, or column, due to stress, shrinkage, temperature changes, or other factors. Understanding and managing crack spacing is important for both the structural integrity and durability of concrete structures. Key factors that influence crack spacing include: 1. **Concrete Composition**: The materials used in the concrete mix can affect how it performs and subsequently cracks.
Reinforced concrete structures durability refers to their ability to withstand various environmental factors and loads over time without significant deterioration or loss of performance. Durability is a critical aspect of structural engineering, as it affects the longevity and maintenance requirements of concrete structures. Key factors that influence the durability of reinforced concrete structures include: 1. **Material Quality**: The use of high-quality concrete and steel reinforcement is essential for durability. Proper selection of materials helps resist environmental attacks.
Terence Patrick O'Sullivan is a common name, but it may refer to several individuals, each with their own background or significance in various fields. Without specific context, it's challenging to determine which Terence Patrick O'Sullivan you are referring to. Could you please provide more details or specify the area of focus, such as art, politics, academia, or another field? This would help in giving a more accurate and relevant response.
Lloyd's of London is a renowned insurance market located in London, England, known for its specialization in various types of risk, particularly complex and high-value insurance and reinsurance. Established in the late 17th century, it originally started as a coffee house where merchants, shipowners, and underwriters gathered to discuss shipping news.
The Standard Reinsurance Agreement (SRA) is a contractual framework used primarily in the reinsurance industry to facilitate the relationship between insurers (cedents) and reinsurers. The SRA provides a set of standardized terms and conditions that govern the reinsurance transaction, allowing both parties to clearly understand their rights and obligations.
"Women relativity theorists" refers to female physicists and mathematicians who have made significant contributions to the field of relativity, which includes both special relativity and general relativity. While the historical narrative of physics has often highlighted the contributions of male scientists, women have played crucial roles in the development and application of relativity theories.
The development of general relativity was the result of contributions from many scientists, mathematicians, and physicists over time. Here are some key contributors: 1. **Albert Einstein**: The primary architect of general relativity, published the theory in 1915. His work built on previous concepts in physics and introduced revolutionary ideas about gravity as the curvature of spacetime.
Ni Guangjiong is a renowned Chinese artist and painter, known for his contemporary works that often blend traditional Chinese techniques with modern artistic expressions. He has gained considerable recognition for his use of color, form, and subject matter, which often reflect aspects of Chinese culture and society. His art might feature themes related to nature, mythology, or everyday life, capturing the essence of both historical and contemporary Chinese experiences.
A sermon is a formal discourse or speech delivered by a religious leader or clergy member, typically during a worship service. The purpose of a sermon is to educate, inspire, and motivate the congregation on matters of faith, morality, and spiritual practice. Sermons often draw from religious texts, such as the Bible in Christianity, and can cover a wide range of topics, including teachings about God, ethical living, social justice, and personal spirituality.

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!
We have two killer features:
  1. 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-calculus
    Articles 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/derivative
  2. 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.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    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.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
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