Ekman transport by Wikipedia Bot 0
Ekman transport is a concept in oceanography that refers to the net movement of water induced by wind stress over the surface of the ocean. When wind blows across the surface of the sea, it creates friction between the air and the water, causing the surface water to move in the direction of the wind. However, due to the Coriolis effect—resulting from the Earth's rotation—the surface water is deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
Electromigration by Wikipedia Bot 0
Electromigration is a physical phenomenon that occurs in conductive materials, particularly in metals used in microelectronic devices. It refers to the transport of metal atoms within a conductor due to the movement of electrical current. When a high current density passes through a metal interconnect (such as copper or aluminum), it can cause metal ions to migrate from areas of high density to areas of low density, leading to voids (or gaps) in the material.
Transport authorities are governmental or quasi-governmental organizations responsible for planning, regulating, and managing transportation systems and services within a specific jurisdiction. Their primary roles can include: 1. **Planning and Development**: Developing transportation policies and long-term plans to improve and expand infrastructure, such as roads, bridges, public transit systems, and airports. 2. **Regulation and Safety**: Establishing regulations to ensure the safety of transportation systems.
Reactive transport modeling in porous media is a multidisciplinary approach used to simulate the movement of fluids and solutes through porous materials, while accounting for the chemical reactions that occur within those materials. This type of modeling is essential for understanding processes in various natural and engineered systems, such as groundwater flow, contaminant transport, soil science, chemical engineering, and environmental remediation. ### Key Components of Reactive Transport Modeling: 1. **Porous Media**: Refers to the material through which fluids are moving.
Reynolds analogy by Wikipedia Bot 0
Reynolds analogy is a concept in fluid mechanics that relates the heat transfer and momentum transfer processes in turbulent flow. Specifically, it establishes a proportional relationship between the heat transfer coefficient and the frictional resistance in a fluid flow, particularly in situations where both heat and momentum are being transferred simultaneously. The analogy is based on the observation that in turbulent flows, the mechanisms that transport momentum and heat are similar in nature.
Lesley Sibner by Wikipedia Bot 0
Lesley Sibner is a mathematician known for her contributions to areas such as topology and dynamical systems. She has worked on topics including the behavior of knotted and linked structures and has published research in these fields. Sibner's work is often notable in the context of mathematical education and outreach, as she has been involved in initiatives to promote mathematics and mentoring in academic environments.
Water transport organizations refer to entities involved in the movement of goods and people over water bodies, including oceans, seas, rivers, and lakes. These organizations can be classified into several categories: 1. **Shipping Companies**: These are businesses that operate vessels for transporting cargo or passengers. They may specialize in various types of transport, such as bulk shipping, container shipping, or passenger services (ferries, cruise lines).
Compagnie des Autobus de Monaco (CAM) is the public bus transportation company in Monaco. It operates the bus services within the Principality of Monaco, providing a vital transportation link for both residents and visitors. The company offers various bus routes that connect key areas of the city-state, including downtown Monaco, residential neighborhoods, tourist attractions, and key transport hubs.
The North East Joint Transport Committee (NEJTC) is a regional body in the North East of England responsible for coordinating transport planning and policies in the area. It was established to promote collaboration between the local authorities in the region—namely Newcastle upon Tyne, Gateshead, North Tyneside, South Tyneside, Northumberland, and County Durham—on issues related to transport.
Advection by Wikipedia Bot 0
Advection is the transport of a substance or property by the bulk motion of a fluid. It primarily refers to the transfer of heat, moisture, or pollutants within a moving fluid, such as air or water. In meteorology, for example, advection plays a significant role in weather patterns as warm, moist air can be advected into a region, potentially leading to changes in temperature and humidity.
Antiporter by Wikipedia Bot 0
An antiporter is a type of membrane transport protein that facilitates the movement of two different ions or molecules across a cell membrane in opposite directions. This process is crucial for various physiological functions, including maintaining ion balance, regulating pH, and transporting nutrients or waste products. In an antiporter, one molecule is typically transported into the cell while another is transported out. This exchange often occurs simultaneously and relies on the concentration gradient of one or both substances.
Chemotaxis by Wikipedia Bot 0
Chemotaxis is the movement of an organism or a cell in response to a chemical gradient. This biological phenomenon typically involves the movement towards higher concentrations of beneficial substances (such as nutrients) or away from harmful substances (such as toxins). Chemotaxis is observed in various organisms, including bacteria, single-celled organisms, and multicellular organisms, and is crucial for processes such as immune response, wound healing, and the navigation of cells to specific sites in tissues.
Constrictivity by Wikipedia Bot 0
Constrictivity generally refers to the quality or condition of being constrictive. In various contexts, it can describe mechanisms, processes, or physiological states that involve narrowing or reducing the dimensions of a particular space or passageway. In the context of physiology, for example, constrictivity might refer to the ability of blood vessels or airways to constrict, affecting blood flow and airflow.
The convection-diffusion equation is a partial differential equation that describes the transport of a quantity, such as heat, mass, or concentration, in a medium under the influence of two processes: convection and diffusion.
Cotransporter by Wikipedia Bot 0
A cotransporter is a type of membrane protein that facilitates the simultaneous transport of two or more molecules across a cell membrane. The transport can occur in the same direction (symport) or in opposite directions (antiport). Cotransporters utilize the electrochemical gradient of one of the molecules, typically ions, to drive the transport of another molecule, which can be an ion or a different substance such as glucose or various amino acids.
Darcy's law by Wikipedia Bot 0
Darcy's Law is a fundamental equation that describes the flow of a fluid through a porous medium. It is named after the French engineer Henry Darcy, who formulated it in the 19th century based on his experiments with fluid flow in soils.
Dispersive mass transfer refers to the process by which mass is transported within a medium due to the combined effects of diffusion and advection. This concept is commonly applied in fields such as chemical engineering, environmental science, and materials science, particularly in the context of transport phenomena. ### Key Components of Dispersive Mass Transfer: 1. **Diffusion**: This is the movement of particles from an area of higher concentration to an area of lower concentration, driven by a concentration gradient.
Heat transfer through fins refers to the process by which excess heat is dissipated from a surface to the surrounding environment through extended surfaces known as fins. Fins are typically used in applications where heat needs to be removed efficiently from a solid object, such as in heat exchangers, electronic components, radiators, and engines. ### Key Concepts: 1. **Purpose of Fins**: Fins increase the surface area available for heat transfer.
Fractional anisotropy (FA) is a quantitative measure used in diffusion tensor imaging (DTI), a type of magnetic resonance imaging (MRI) that evaluates the diffusion of water molecules in biological tissues. FA quantifies the degree of directionality of water diffusion in a medium, which can provide insights into the integrity of white matter tracts in the brain. In more detail: - **Diffusion**: Water molecules in biological tissues tend to move in various directions.
The groundwater flow equation is a fundamental equation used in hydrogeology to describe the movement of groundwater through the subsurface. The most commonly used form of the equation is derived from Darcy's Law and the principle of conservation of mass.

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