Search results for keyword: earths
Rare earth magnesium ferrosilicon alloy (GB/T4138-1993)
Rare Earth Magnesium Silicone Iron Alloy (GB/T4138-1993)
Introduction
Rare earth magnesium silicium iron alloy (GB/T4138-1993) is a metal alloy which utilizes a mix of rare earth elements, magnesium, silicon and iron. This alloy is primarily used for the production of mechanical parts and compon......
1021 
Sophie
65, 70 purposes
Global Warming
Global warming is one of the greatest threats facing our planet today. It is caused by increasing concentrations of greenhouse gases like carbon dioxide and methane in our atmosphere. These gases trap the suns heat, causing the earths temperature to steadily rise over time.
Much ......
Ductile iron (GB/T1348-1988)
Introduction
Spheroidal Graphite Iron is a type of cast iron which is obtained by adding graphite to iron in a particular structure. It is usually referred to as spheroidal graphite iron (SGI) or nodular iron due to the nodular shape of the graphite. It is a very strong, high strength material du......
Standard chemical composition of commonly used materials
Standard Chemical Composition of Common Materials
Steel is an alloy of iron, carbon, and possibly other elements. Depending on the grade, the steel may include other elements such as manganese and chromium. Steel is often grouped into four categories based on its composition:
Carbon Steel: is an ......
Common vocabulary of heat transfer
Thermodynamics is the branch of physics which deals with the study of heat, its motion and its effects. It is a branch of science that provides tools to investigate the relationships between heat and other types of energy, such as mechanical work, electricity and chemical reactions. Thermodynamics......
Commonly used English terms for energy and power systems (Part 2)
Quantities
Kilovolt-Amperes (KVA): The apparent power in a circuit expressed in 1,000 volt-amperes.
Kilowatts (kW): A unit of measure of power, equal to 1,000 watts.
Megawatt (MW): A unit of measure of power, equal to one million watts.
Apparent Power (VA): The vector sum of real and reactive ......
Surveying and Mapping Vocabulary (1)
Surveying is a crucial element in the building and construction of civil engineering works and involves the physical measurement and vertical and horizontal positioning of land boundaries and other natural or man-made features. Surveying technology has been used throughout human history and past c......
Surveying and Mapping Vocabulary (2)
Surveying and Mapping
Surveying and mapping are essential components in the planning and execution of any geospatial project. Surveying is the measurement and collection of data related to the position, dimension, and relative location of points, features, and geographic areas, which are then util......
rock
Rocks
Rocks are one of the most common features on Earth’s surface. They are made up of natural, solid materials that form together over time. Rocks can be found virtually everywhere on land, under the sea, in the air, and even in space. Rocks are made up of minerals that have been compressed to......
Rock mass stress
Introduction
The lithosphere of the Earth is composed of the crust and the mantle and both are rigid. Inside the lithosphere, however, is still dynamic with plates in constant movement and their continuous interaction with each other. As a consequence of the pressure and friction generated by this......
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