A non-stoichiometric compound is a type of compound whose composition cannot be expressed as a simple whole-number ratio of its constituent elements. In contrast to stoichiometric compounds, where the elements are present in fixed proportions, non-stoichiometric compounds may have varying ratios of elements due to factors such as defects in the crystal structure or the presence of vacancies (missing atoms) or interstitials (extra atoms) within the lattice.
The term "normal distribution transform" could refer to a few different concepts, depending on the context. Here are some interpretations: 1. **Z-Score Transformation**: This is a common transformation related to normal distributions.
The Normalized Difference Water Index (NDWI) is a remote sensing index used primarily to assess the presence and distribution of water bodies. It helps distinguish between water and non-water features in satellite imagery. The NDWI exploits the reflective properties of water in different parts of the electromagnetic spectrum, particularly focusing on the visible (green) and near-infrared (NIR) wavelengths.
The North Atlantic Aerosols and Marine Ecosystems Study (NAAMES) is a scientific research initiative aimed at understanding the interactions between ocean ecosystems, aerosols, and climate. Conducted primarily in the North Atlantic Ocean, this study focuses on investigating how ocean biogeochemical processes influence the production of aerosols and how those aerosols, in turn, affect atmospheric conditions and climate.
The Northern European Enclosure Dam is a proposed infrastructure project designed to protect Northern European countries from the effects of climate change, particularly rising sea levels and flooding associated with storm surges. The project envisions the construction of a barrier system that would enclose several countries or regions, such as the Netherlands, Germany, Denmark, and potentially others, to mitigate flooding risks and protect coastal areas.
Code by Wikipedia Bot 0
Code generally refers to a set of instructions written in a programming language that can be executed by a computer to perform specific tasks. It serves as the foundation for software applications, websites, and many other digital tools. Here are some key points regarding code: 1. **Programming Languages**: Code is typically written in programming languages like Python, Java, C++, JavaScript, and many others. Each language has its syntax and semantics.
Nuclear Magnetic Resonance (NMR) quantum computing is a type of quantum computing that uses the principles of nuclear magnetic resonance to manipulate quantum bits, or qubits. In this approach, the states of qubits are represented by the nuclear spins of atoms (often isotopes like carbon-13, nitrogen-15, or phosphorus-31) within a molecule.
The Goddard High Resolution Spectrograph (GHRS) was an instrument used aboard the Hubble Space Telescope (HST) to perform high-resolution spectroscopy of astronomical objects. It was one of the two spectrographs on Hubble, the other being the Space Telescope Imaging Spectrograph (STIS). **Key features of GHRS include:** 1.
Nucleation in microcellular foaming refers to the initial process by which tiny gas bubbles, or nuclei, form within a polymer matrix during the foaming process. This is a critical step in producing microcellular foam, which is characterized by a high number of small cells (bubbles) that are typically less than 10 micrometers in diameter.
The Number Theoretic Hilbert Transform is an adaptation of the classic Hilbert transform, which is a well-known operation in harmonic analysis and signal processing, to the context of number theory and discrete signals. The classical Hilbert transform is defined for functions or signals and is often used to derive analytic signals, modify phase, or analyze the frequency content of signals.
Numerical methods for linear least squares are techniques used to solve the linear least squares problem, which involves finding the best-fitting line (or hyperplane) through a set of data points in a least-squares sense.
Numerologists by Wikipedia Bot 0
Numerologists are individuals who practice numerology, a belief system that assigns significance to numbers and their relationships to various aspects of life. Numerology is often used to interpret personality traits, predict future events, and understand one's life path based on numerical values derived from names, birth dates, and other significant numbers. Numerologists may analyze various components, such as: 1. **Life Path Number**: Calculated from a person's birth date, this number is thought to reveal their life purpose and path.
Oceanarium by Wikipedia Bot 0
An oceanarium is a large aquarium or marine facility that focuses on displaying a variety of marine life, including fish, mammals, and other aquatic organisms. Unlike traditional aquariums, oceanariums often emphasize a naturalistic environment and may include large tanks that simulate oceanic ecosystems. They often feature diverse exhibits that showcase different marine habitats, such as coral reefs, deep-sea environments, and coastal regions.
Oded Goldreich by Wikipedia Bot 0
Oded Goldreich is a prominent Israeli computer scientist known for his contributions to the fields of cryptography, complexity theory, and algorithm design. He has made significant advancements in theoretical computer science, particularly in the areas of secure multi-party computation, zero-knowledge proofs, and randomness in computation. Goldreich has authored or co-authored numerous influential papers and is recognized for his work in making complex theoretical concepts accessible and applicable in real-world scenarios.
Ogbunigwe by Wikipedia Bot 0
Ogbunigwe is a term that originates from the Igbo people of Nigeria, referring to a type of improvised explosive device (IED) used during the Nigerian Civil War (also known as the Biafran War) from 1967 to 1970. The word "Ogbunigwe" translates to "kill and bury" in the Igbo language.
Oleg Losev by Wikipedia Bot 0
Oleg Losev (1903–1988) was a Soviet scientist and inventor who is often recognized for his pioneering work in the field of optoelectronics. He is best known for his research on light-emitting diodes (LEDs) and for his contributions to the development of semiconductor devices. In the 1920s, Losev created some of the first practical light-emitting diodes using silicon carbide, which emitted visible light when an electric current passed through them.
"Omar Khayyam" is a historical drama film released in 1957, directed by William Dieterle. The film is loosely based on the life of the Persian poet, mathematician, and astronomer Omar Khayyam, who lived during the 11th century. It stars Cornel Wilde as Omar Khayyam, along with other notable actors like present-day characters and events intertwined with Khayyam's life.
Omitted-variable bias refers to the bias that occurs in statistical analyses, particularly in regression models, when a relevant variable is left out of the model. This can lead to incorrect estimates of the relationships between the included variables. When an important variable that affects both the dependent variable (the outcome) and one or more independent variables (the predictors) is omitted, it can cause the estimated coefficients of the included independent variables to be biased and inconsistent.
Online console gaming refers to playing video games on a gaming console (such as PlayStation, Xbox, or Nintendo Switch) over the internet. This allows players to connect with others, participate in multiplayer games, join online communities, and access digital content directly from their consoles. Key features of online console gaming include: 1. **Multiplayer Interaction**: Players can compete against or cooperate with others from around the world in real-time.
An Online Service Provider (OSP) is a business or organization that offers services to users over the Internet. These services can range widely, covering various categories such as communication, information access, entertainment, and cloud computing. OSPs typically provide platforms and infrastructure that enable users to perform specific tasks or access resources online. Some common types of online service providers include: 1. **Internet Service Providers (ISPs)**: Companies that provide users with access to the Internet.

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!
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