"Wen Shengchang" (文生昌) refers to a brand of traditional Chinese medicine, specifically a manufacturer of herbal products and remedies. The company is known for its high-quality herbal formulations and health supplements that adhere to traditional Chinese medicinal practices. It emphasizes the use of natural ingredients for health and wellness.
Woodward's rules, also known as Woodward's rules of thumb, refer to a set of heuristics used primarily in the field of organic chemistry to predict the effect of substituents on the stability and reactivity of molecular structures, particularly in the context of aromatic compounds. These rules were formulated by the chemist Robert Woodward in his work on the stereochemistry and structure of organic compounds.
Hydrogen pipeline transport refers to the system of moving hydrogen gas from one location to another through a network of pipelines. This method of transport is crucial for the hydrogen supply chain, especially as the demand for hydrogen as a clean fuel and industrial feedstock increases globally. ### Key Aspects of Hydrogen Pipeline Transport: 1. **Infrastructure**: Hydrogen can be transported via pipelines that are designed specifically for it or through repurposed natural gas pipelines.
TOI-1338 is a binary star system located approximately 330 light-years away from Earth. It is known for hosting two exoplanets, TOI-1338 b and TOI-1338 c. The system was identified and studied through NASA's Transiting Exoplanet Survey Satellite (TESS) mission, which is designed to discover and characterize exoplanets by observing the light curves of stars for transits—periodic dimming caused by planets passing in front of them.
An "extraterrestrial vortex" is not a widely recognized scientific term, but it may refer to concepts related to vortex phenomena that could occur in extraterrestrial environments, such as other planets or celestial bodies. In general, a vortex is a region in a fluid where the flow revolves around an axis line, which can occur in atmospheres or bodies of water.
The planning fallacy is a cognitive bias that refers to the tendency for individuals and groups to underestimate the time, costs, and risks of future actions while overestimating the benefits. This phenomenon often leads to overly optimistic predictions about how long tasks will take and how much they will cost, resulting in delays and budget overruns. The concept was first proposed by psychologists Daniel Kahneman and Amos Tversky in 1979.
A project plan is a formal document that outlines the scope, objectives, tasks, timelines, resources, and responsibilities related to a specific project. It serves as a roadmap for project execution and management, providing guidance to the project team and stakeholders throughout the project lifecycle. Here are the key components typically included in a project plan: 1. **Project Objectives:** Clear and measurable goals that the project aims to achieve.
A prepolymer is a partially polymerized compound that serves as an intermediate in the production of polymers. It is a low-molecular-weight material that can react with other chemicals to form a higher molecular weight polymer. Prepolymers are often used in the manufacturing of polyurethane, epoxy, and other types of thermosetting and thermoplastic materials.
Polyphenyl ether is a type of polymer that consists of repeating units derived from phenol and an aryl ether (the ether linkage connecting aromatic rings). It is characterized by its excellent thermal stability, chemical resistance, and electrical insulating properties, making it useful in a variety of applications. Polyphenyl ether can be synthesized through various methods, including polycondensation of phenolic compounds with reactive ether groups.
Polyphenylsulfone (PPSU) is a high-performance thermoplastic polymer known for its excellent thermal stability, chemical resistance, and mechanical properties. It belongs to the family of sulfone polymers and is characterized by the presence of sulfone groups (–SO2–) in its molecular structure.
Styrene-acrylonitrile (SAN) resin is a type of thermoplastic polymer that is produced by the polymerization of styrene and acrylonitrile monomers. It is a copolymer, meaning it consists of two different monomer units, which gives it unique properties that make it suitable for various applications. ### Key Properties: 1. **Transparency**: SAN can be produced to be highly transparent, making it a good substitute for glass in certain applications.
Poetry analysis refers to the process of examining and interpreting a poem to understand its meaning, themes, structure, language, and emotional impact. This analysis can involve several components, including: 1. **Theme**: Identifying the central ideas or messages the poet seeks to convey, such as love, nature, death, identity, or social issues. 2. **Structure**: Analyzing the form of the poem, including its type (e.g.
In poker, "position" refers to where a player sits at the table relative to the dealer (or button). It is a critical factor in determining how a player should approach a hand because it influences the order in which players act during betting rounds. Here are the main types of positions: 1. **Early Position (EP)**: This includes the first few players to act after the big blind.
Stanisław Solski was a prominent Polish actor and theatre director, born on January 15, 1877, and passing away on June 19, 1954. He was known for his contributions to Polish theatre and film, and he played a significant role in the development of the Polish theatrical landscape in the early to mid-20th century. Solski's performances were characterized by their depth and emotional range, earning him acclaim for both dramatic and comedic roles.
Douglas Schoen is an American political consultant and pollster known for his work in political strategy and public opinion research. He has been involved in various political campaigns, primarily focusing on Democratic candidates and causes. Schoen has also written extensively on political issues and has contributed to discussions on electoral strategy and the role of polling in politics. Throughout his career, he has worked with several prominent political figures and parties, offering insights and strategies based on his research.
An "augmented sphenocorona" is a type of geometric figure that belongs to the category of polyhedra. Specifically, it is a variant of the sphenocorona—one of the Archimedean solids. The term "augmented" indicates that some vertices or faces have been altered or added to the original sphenocorona to create a new shape. A sphenocorona itself is characterized by having a combination of triangular and quadrilateral faces.
The compound of five octahedra, also known as the "pentaoctahedron," is a geometric structure formed by combining five octahedra in a specific arrangement. It can be viewed as a complex polyhedron or a space-filling arrangement. In polyhedral geometry, such compounds often demonstrate interesting symmetrical properties and can be visualized in three-dimensional space.
The compound of six tetrahedra is a geometric structure formed by the combination of six tetrahedra intersecting in a symmetric arrangement. In this compound, the tetrahedra are arranged in such a way that they share vertices, edges, and faces, creating a complex polyhedral configuration. This compound can also be described mathematically as a polyhedral arrangement with an intricate symmetry. It is an interesting example of a polyhedral compound in three-dimensional space and showcases the fascinating interplay between geometry and symmetry.
A compound of twelve pentagonal prisms refers to a geometric figure formed by arranging twelve pentagonal prisms in a specific way. In three-dimensional geometry, a pentagonal prism is a polyhedron with two parallel pentagonal bases connected by rectangular faces. When we talk about a compound of twelve pentagonal prisms, this can imply various configurations depending on how the prisms are arranged or combined.
The great retrosnub icosidodecahedron is a non-convex uniform polyhedron and is one of the Archimedean solids. It is characterized by its complex structure, which consists of a combination of regular polygons. Specifically, the great retrosnub icosidodecahedron has the following properties: - **Faces**: It consists of 62 faces, which include 20 regular triangles, 12 regular pentagons, and 30 squares.

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 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.
  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