C. Barry Carter is a prominent figure in the field of materials science, particularly known for his work in electron microscopy and materials characterization. He is a professor at the University of Portland and has authored or co-authored several influential texts and publications on the subject. One of his notable works is the book "Transmission Electron Microscopy: A Textbook for Materials Science," which is widely used in both academic and research settings.

Central Switzerland is a region located in the heart of the country, characterized by its stunning landscapes, lakes, and mountains. It typically includes the cantons of Lucerne, Uri, Schwyz, Obwalden, and Nidwalden. The region is known for its picturesque scenery, including Lake Lucerne, the surrounding mountains like the Pilatus and Rigi, and numerous hiking and skiing opportunities.

A **chain of trust** is a security model used to ensure the authenticity and integrity of data and communications within a network or system. It involves a sequence of trust relationships that are established between entities (such as users, devices, and services) and the certificates or keys that validate them. Here’s a closer look at the concept: ### Key Components of Chain of Trust 1.

The Central Institute of Fisheries Technology (CIFT) is a premier research institution in India, focused on the development and advancement of fisheries technology. Established in 1957 and located in Kochi, Kerala, CIFT operates under the Indian Council of Agricultural Research (ICAR). The institute aims to support the fisheries and aquaculture sectors by conducting research, developing technologies for post-harvest processing, and improving fishery practices.

Charles Blagden (1748–1820) was an English scientist known for his work in the field of thermodynamics and heat transfer. He is best remembered for his experiments related to heat and combustion, particularly his observations concerning the properties of gases and the concept of specific heat. Blagden conducted experiments that contributed to the understanding of how heat affects materials and the nature of gases. He was also a member of the Royal Society and worked closely with other prominent scientists of his time.

The 77th meridian west is a line of longitude that is 77 degrees west of the Prime Meridian, which is located at 0 degrees longitude. This meridian runs from the North Pole to the South Pole and passes through various locations in North America, including parts of Canada and the United States, before reaching the Southern Hemisphere. In the United States, the 77th meridian west passes through significant places such as Virginia, Maryland, and Washington, D.C.

The number 800 is a numerical value that represents eight hundred. It is an integer that comes after 799 and before 801 in the number line. In various contexts, it can be understood or used in different ways: 1. **Numerical Value**: It is simply the quantity represented by the numeral 800. 2. **Mathematical Properties**: It is an even number and can be factored into prime factors as \(2^5 \times 5^2\).

90 mm artillery typically refers to a category of ammunition and artillery systems that use a 90 mm caliber. This size of artillery has been employed in various types of weapons, including towed howitzers, anti-tank guns, and medium mortars. One notable example is the 90 mm gun used by some militaries during the mid-20th century, such as the United States and several other NATO and non-NATO countries.

The 94th meridian west is a line of longitude that is 94 degrees west of the Prime Meridian, which is the line of longitude at 0 degrees. This meridian runs from the North Pole to the South Pole and passes through several U.S. states, including parts of Minnesota, Wisconsin, Iowa, Missouri, Kansas, Oklahoma, and Texas. It also passes through various geographical features and regions, influencing local time zones and climate patterns.

In the 9th century, notable mathematicians emerged from various cultural and geographical backgrounds, particularly within the Islamic world and Europe. Here's a brief overview by nationality or region: ### Islamic World 1. **Al-Khwarizmi** (Persian) - Often hailed as the "father of algebra," Al-Khwarizmi's works were foundational in developing algebra and introducing the decimal positional number system to the West.

The A. A. Griffith Medal and Prize is an award given by the Institute of Materials, Minerals and Mining (IOM3) in the UK. It is named after the eminent scientist A. A. Griffith, who made significant contributions to the fields of materials science and engineering, particularly in the areas of fracture mechanics and the study of materials' properties.

Abba Mari ben Eligdor was a notable Jewish figure in the medieval period, specifically during the 13th century. He is best known for his contributions to Jewish scholarship and literature. One of his most significant works is the "Sefer ha-Mitzvot," which is a systematic enumeration of the commandments in Jewish law.

The Abbe sine condition is a principle in optical systems, particularly in the design of optical instruments like microscopes and imaging systems. It relates to the alignment of optical components and the criteria for achieving satisfactory resolution and imaging performance.

Charlier polynomials are a sequence of orthogonal polynomials that arise in probability and analysis. They are a specific case of hypergeometric polynomials and can be defined in the context of the Poisson distribution. The Charlier polynomials \( C_n(x; a) \) are defined as follows: \[ C_n(x; a) = \sum_{k=0}^{n} \frac{(-1)^{n-k}}{(n-k)!

Abortion initiation refers to the process where a pregnancy is intentionally terminated, and "abortive initiation" specifically pertains to the methods and practices used to begin this process. There are several approaches to abortion, including: 1. **Medical Abortion**: Involves the use of medications to induce an abortion. This typically includes a combination of mifepristone (which blocks the hormone progesterone) and misoprostol (which causes the uterus to contract and expel its contents).

Abrasive blasting, also known as sandblasting or media blasting, is a surface treatment process used to clean, finish, or prepare surfaces by propelling abrasive materials at high velocities. This technique is commonly employed in various industries for applications such as removing paint, rust, or corrosion from metals, cleaning surfaces before painting or coating, and creating textured finishes.

Abrasive Flow Machining (AFM) is a precision machining process used to improve the surface finish and shape of part features that can be difficult to reach using traditional machining methods. It utilizes a flowable abrasive medium—often a viscous polymer or a viscoplastic material mixed with abrasive particles—that is forced through or across the workpiece.

ISO 31-7 is part of the ISO 31 series of international standards that deal with physical quantities and units. Specifically, ISO 31-7 addresses the topic of "Specific quantities and units" related to the field of mechanics. It lists various mechanical quantities and their corresponding units, providing a standardized framework for measurements and ensuring consistency in scientific communication.

An **abundant number** is a positive integer for which the sum of its proper divisors (the positive divisors excluding the number itself) is greater than the number itself.

Plücker embedding is a mathematical construction that embeds a projective space into a higher-dimensional projective space. Specifically, it is most commonly associated with the embedding of the projective space \( \mathbb{P}^n \) into \( \mathbb{P}^{\binom{n+1}{2} - 1} \) using the concept of the lines in \( \mathbb{P}^n \).