The balance point temperature refers to a specific temperature at which a building's heating system is neither required to add heat nor is any heat lost from the structure. In other words, it is the outdoor temperature at which the heat being lost from a building through its envelope (walls, roof, windows, etc.) is equal to the amount of heat generated by internal sources (such as occupants, appliances, and lighting) as well as any passive solar gains.
Optothermal stability refers to the ability of a material or system to maintain its structural, optical, and thermal properties under varying temperature and light conditions. This concept is particularly important in fields such as materials science, optics, nanotechnology, and photonics, where the performance of materials and devices can be significantly affected by temperature fluctuations and exposure to light.
The Ostwald–Freundlich equation is a relationship used in the study of adsorption phenomena, particularly in physical chemistry and materials science. It provides a way to express the dependence of the amount of a substance adsorbed on a solid surface at a given temperature and pressure.
Stefan's formula relates to the process of phase change, specifically the heat transfer involved in the melting or freezing of a material. It is often used in the context of melting ice or other similar processes where a solid changes into a liquid. The formula is named after the physicist Josef Stefan.
COSMO-RS, which stands for "COnductor-like Screening Model for Real Solvents," is a computational method used in molecular modeling and thermodynamics to predict the solubility, activity coefficients, and other properties of compounds in solution. It is particularly useful for assessing how molecules behave in various solvents, making it valuable in fields such as chemistry, materials science, and pharmaceutical development. The COSMO-RS approach combines a continuum solvent model with statistical thermodynamics.
The Joback method is a group contribution approach used in the field of chemical engineering and thermodynamics to estimate the thermophysical properties of organic compounds. Developed by L. K. Joback in the late 1980s, this method allows for the prediction of various properties, including boiling points, melting points, heat capacities, and vapor pressures, based on the compound's molecular structure.
An exothermic process is a chemical reaction or physical change that releases energy in the form of heat to its surroundings. This release of energy typically results in an increase in the temperature of the immediate environment. Exothermic reactions occur when the total energy of the products is less than that of the reactants, leading to the release of energy.
Supercooling is a phenomenon where a liquid is cooled below its freezing point without it becoming solid. This occurs when a liquid is in a perfectly homogeneous state, meaning there are no impurities or surface defects to serve as nucleation sites for crystallization. Under these conditions, the molecules in the liquid can remain in a disordered, liquid state despite the temperature being below the typical freezing point.
The energy value of coal can vary significantly depending on its grade and type. Coal is classified into several categories, including anthracite, bituminous, sub-bituminous, and lignite, with each having different energy content. 1. **Anthracite:** This type of coal has the highest carbon content (around 86–97%) and energy value, typically ranging from about 24 to 30 million British thermal units (BTUs) per ton.
Saturation vapor density (SVD) refers to the maximum amount of water vapor that air can hold at a specific temperature and pressure without condensation occurring. It is typically expressed in units of grams of water vapor per cubic meter of air (g/m³). The capacity of air to hold water vapor increases with temperature; warmer air can contain more moisture before reaching saturation.
Soil thermal properties refer to the characteristics of soil that influence its ability to conduct and retain heat. Understanding these properties is essential for various applications, including agriculture, environmental science, and civil engineering. The key thermal properties of soil include: 1. **Thermal Conductivity**: This property measures how well soil can conduct heat. It is influenced by factors such as soil texture, moisture content, bulk density, and organic matter content.
Arieh Ben-Naim is a prominent Israeli scientist and academic known for his contributions to the fields of physical chemistry and material science. He has been involved in research that focuses on thermodynamics, molecular behavior, and the properties of solvents and solutions. Additionally, Ben-Naim has authored several influential publications and books on these topics.
Hugh Everett III was an American physicist and mathematician best known for his work in quantum mechanics, particularly for formulating the "many-worlds interpretation" of quantum mechanics in 1957. This interpretation suggests that all possible outcomes of quantum measurements are realized in separate, branching universes, effectively positing the existence of an infinite number of parallel realities.
As of my last knowledge update in October 2021, I don't have specific information about a widely recognized figure named Keith Burton. It's possible that he could be a private individual or someone who gained prominence after that date in various fields such as entertainment, sports, academia, or other areas. If you can provide more context or details, I could help clarify or provide related information.
Paul W. Chun is a figure known for his work in the field of real estate, particularly in connection with commercial real estate and property management. He may also be involved in other business ventures or areas, but specific details about his contributions or achievements may vary based on context. If there's a particular aspect of Paul W.
Sebastian Deffner is known as a physicist and academic researcher, primarily focusing on quantum mechanics, quantum information, and related fields. His work often involves theoretical aspects of quantum systems and their applications.
Yang Shiming, also known as "Yang Shiming," is a term that could refer to a few different concepts, but it is not widely known or established in major cultural, scientific, or historical contexts.
The Weather Stress Index (WSI) is a metric used to assess the impact of weather conditions on human health, well-being, and performance. It takes into account various meteorological factors such as temperature, humidity, wind speed, and precipitation, which can affect how individuals feel physically and mentally. The WSI is often used in fields such as agriculture, public health, and occupational safety to evaluate how weather can influence physical stress, productivity, and health outcomes.
Dixie Alley is a term used to describe a region in the southeastern United States that is particularly prone to severe weather events, especially tornadoes. The area typically includes parts of Mississippi, Alabama, Louisiana, and Tennessee. Dixie Alley is noted for its high frequency of tornadoes during the spring and fall months, largely due to its geographic and climatic conditions, including warm, moist air from the Gulf of Mexico colliding with cooler, drier air from the north.
Tornado Records is a record label that may refer to different entities or imprints in the music industry, depending on the context. One notable example is Tornado Records, a label based in the United States that specializes in various genres, including rock, pop, and electronic music. The name has also been associated with independent labels or specific projects by artists, but specific details can vary.
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 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. - 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





