Hapke parameters refer to a set of values used in the Hapke bidirectional reflection distribution function (BRDF), which is a mathematical model that describes how light is reflected off a rough surface (like that of a planetary body or a terrestrial material). The model is named after Bruce Hapke, who developed it to better understand and analyze the reflectance properties of planetary surfaces.
The Harries graph, also known as a Hassler graph, is a specific type of graph in the field of graph theory. In such graphs, vertices are connected through edges in a manner that satisfies particular conditions. Harries graphs are often studied for their properties in relation to connectivity, chromatic number, and other characteristics. However, it is worth noting that there are many specific types of graphs, and "Harries graph" may not be a widely recognized term in all contexts.
The Harries–Wong graph is a specific type of graph used in combinatorial mathematics and graph theory. It is particularly known for being a counterexample to certain conjectures in graph theory, especially related to the properties of extremal graphs—graphs that maximize or minimize a particular property under specified conditions. The graph is constructed using a specific method and has been researched for its unique characteristics in the context of colorings, coverings, and other properties.
Harry Kroto was a distinguished British chemist who is best known for his discovery of fullerenes, a class of carbon molecules that include C60, often referred to as "buckminsterfullerene" or "buckyballs." He was awarded the Nobel Prize in Chemistry in 1996, along with Robert Curl and Richard Smalley, for their work on the synthesis and properties of these molecules. Kroto's research contributed significantly to the field of nanotechnology and materials science.
TRPC6, or Transient Receptor Potential Channel 6, is a protein that functions as an ion channel, which is a type of membrane protein that allows specific ions to pass through the cell membrane. TRPC6 is part of the TRP (Transient Receptor Potential) channel family, which is involved in various physiological processes, including sensory perception, muscle contraction, and the regulation of cell signaling pathways.
Eline Tolstoy is not a widely recognized term or name associated with a specific person, concept, or work in popular culture, literature, or history up to my last knowledge update in October 2023. It might be a lesser-known figure, a variation of a name, or could potentially refer to something that has emerged more recently.
"Hearing the shape of a drum" is a phrase that refers to a famous mathematical problem in the field of spectral geometry. The question it raises is whether it is possible to determine the shape (or geometric properties) of a drum (a two-dimensional object) solely from the sounds it makes when struck. More formally, this involves studying whether two different shapes can have the same set of vibrational frequencies, known as their eigenvalues.
HEAT 1X Tycho Brahe is a spacecraft designed for a mission under the High Altitude Student Platform (HASP) program. Developed by students at the University of North Dakota, it is a high-altitude balloon experiment aimed at conducting astrophysical observations. The name Tycho Brahe references the famous Danish astronomer known for his detailed astronomical observations.
The heat of fusion, also known as the enthalpy of fusion, is the amount of energy required to change a substance from a solid to a liquid at its melting point. This property varies among different elements and compounds. Here’s a general overview of the heats of fusion for some common elements (values are approximate and can vary based on the source): 1. **Hydrogen (H)**: 0.117 kJ/mol 2.
Predicate logic, also known as first-order logic (FOL), is a formal system in mathematical logic that extends propositional logic by including quantifiers and predicates. It is used to express statements about objects and their relationships in a structured and precise manner. Here are the key components of predicate logic: 1. **Predicates**: A predicate is a function that takes one or more objects from a domain and returns a truth value (true or false).
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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.Figure 3. Visual Studio Code extension installation.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. - Infinitely deep tables of contents:
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