Vanadium-51 nuclear magnetic resonance (NMR) refers to the study of the magnetic properties of the vanadium-51 isotope using NMR techniques. Vanadium has several isotopes, but vanadium-51 (\(^{51}\text{V}\)) is of particular interest because it has a nuclear spin of 7/2, which allows it to be studied using NMR.
The Arnold–Beltrami–Childress (ABC) flow is a three-dimensional, incompressible flow that is often studied in the context of fluid dynamics and dynamical systems. This flow is notable for its simple yet rich structure, and it serves as a model for understanding various phenomena in fluid mechanics, particularly in relation to turbulence and chaotic behavior.
The term "coefficient of moment" is not a standard term used in mechanics or engineering, so it might appear in different contexts or have various interpretations. However, here are a couple of possible meanings depending on the context: 1. **In Structural Engineering**: The coefficient of moment may refer to a dimensionless value that expresses the relationship between the moment acting on a beam or structural member and the effects produced (like stress or deflection).
Estuarine Turbidity Maximum (ETM) refers to a specific area within an estuary where the concentration of suspended sediments, primarily fine particles and organic matter, is significantly higher than in surrounding waters. This phenomenon typically occurs due to the interaction of freshwater from rivers and saltwater from the ocean, leading to various physical and biological processes.
Kameleon FireEx KFX is a fire extinguishing system that utilizes a unique, environmentally friendly algorithm and advanced technology to suppress fires effectively. It is designed to address various types of fires, including those involving flammable liquids, electrical equipment, and more. The KFX system typically employs a combination of water and other agents to create a mist or fog that cools the flames and displaces oxygen, thereby extinguishing the fire.
The Kaye effect, observed in the field of ice skating, refers to the phenomenon where a figure skater executing a jump or spin experiences an increase in rotational speed when they pull their limbs closer to their body. This effect is a practical demonstration of the conservation of angular momentum, which states that if no external torque acts on a system, the total angular momentum of that system remains constant. When a skater extends their arms and legs during a jump, they have a larger moment of inertia.
The Knudsen layer is a region in the vicinity of a solid-gas or liquid-gas interface where the behavior of gas molecules is influenced by the presence of the surface. This layer is particularly significant in situations where the mean free path of gas molecules (the average distance a molecule travels between collisions) is comparable to or larger than the characteristic dimensions of the surface features or the separation distance from the surface itself.
"Modified pressure" isn't a widely recognized term across scientific disciplines, but the concept can be applied in various contexts depending on the field being discussed. Here are a few possible interpretations: 1. **Fluid Mechanics:** In fluid dynamics, "modified pressure" might refer to a pressure measurement that has been adjusted for specific conditions, such as accounting for elevation changes, fluid density variations, or other factors affecting pressure readings.
The Otto Laporte Award is a prestigious recognition given by the American Mathematical Society (AMS). It is awarded for notable contributions to the field of mathematics education, particularly in the areas of teaching and curriculum development. The award is named after Otto Laporte, who was a prominent mathematician and educator. It emphasizes the importance of effective teaching and the enhancement of mathematics learning experiences, celebrating individuals who have made significant impacts in these areas.
Plasma beta, often referred to in a medical context, typically pertains to "beta" levels in the blood plasma related to various substances, such as proteins or hormones. One common reference is to beta-amyloid, which is significant in the context of Alzheimer's disease research, as elevated levels of this protein are associated with the formation of amyloid plaques in the brain.
Reduced viscosity is a measure of the flow characteristics of a polymer solution or suspension. It is a dimensionless quantity that provides insight into the molecular weight and concentration of the polymer in the solution.
A slosh baffle is a structural component used in tanks, containers, or vessels to control and mitigate the effects of liquid sloshing. Sloshing refers to the movement of liquid within a container, which can occur due to external forces (such as acceleration, deceleration, or vibrations) or internal factors (such as fluid motion). Slosh baffles are typically designed as panels or barriers that are installed inside the tank.
The term "TEM-function" could have different meanings depending on the context in which it is used. Below are a couple of possible interpretations: 1. **TEM Function in Mathematics or Physics**: TEM might refer to "Transverse Electromagnetic Modes," which are solutions to the wave equation in a waveguide or cavity, where both the electric field and the magnetic field are perpendicular to the direction of wave propagation. In this context, TEM modes can describe how electromagnetic waves propagate in certain structures.
Quasiparticles are emergent collective excitations that arise in complex systems, such as solids, liquids, or gases. They can be thought of as "particles" that represent the collective behavior of many underlying particles, which interact with each other in a way that can lead to new macroscopic properties. Here are some key points about quasiparticles: 1. **Collective Behavior**: Quasiparticles emerge from the interactions among many particles in a medium.
Geometric phase, also known as the Berry phase, is a phenomenon in quantum mechanics and more broadly in physics that describes how the state of a quantum system changes when it undergoes adiabatic (slow) evolution along a closed path in parameter space.
A Mott insulator is a type of material that behaves as an insulator due to strong electron-electron interactions, despite having the necessary conditions (like a partially filled electronic band) that would typically lead to metallic behavior. In a metallic system, electrons can move freely and conduct electricity; however, in Mott insulators, the interactions between electrons are so strong that they hinder their movement and localization, resulting in insulating behavior.
Damper windings are used in synchronous machines, such as synchronous motors and generators, to improve their stability and performance. These windings help to dampen oscillations during transient conditions and provide additional torque under certain operating conditions. ### Key Functions of Damper Windings: 1. **Damping of Oscillations**: When a synchronous machine experiences disturbances, such as sudden changes in load or voltage, it can lead to oscillations.
A sling cart is a type of wheeled cart designed for transporting various types of goods, commonly used in warehouses, factories, and sometimes in retail environments. The cart features a sling-like platform or fabric that can be adjusted to hold items securely. Sling carts are typically lightweight and can be maneuvered easily, making them ideal for carrying bulky items, equipment, or materials over short distances. They are often equipped with a frame or structure that allows for stacking and securing loads during transport.

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