Search Results for: 3 – Page 4

Results of your query are below. If you do no find what you are looking for, please try again with different keywords, or use our super search (icon top right in the menu), or contact us.

Corporate meeting discussing greenhouse gas emission scopes in environmental management.

Greenhouse Gas Protocol Emission Scopes

The Greenhouse Gas (GHG) Protocol categorizes greenhouse gas emissions into three scopes. Scope 1 covers direct emissions from owned or controlled sources. Scope 2 includes

Shockley–Queisser Limit

The Shockley–Queisser limit is the maximum theoretical efficiency for a single p-n junction solar cell. It considers only radiative recombination and black-body radiation losses. For

Hall-Héroult Process

The Hall-Héroult process is the major industrial method for smelting aluminum. It involves dissolving alumina (aluminum oxide, Al₂O₃) in molten cryolite (Na₃AlF₆) and electrolyzing the

Königsberg bridge problem map illustrating Euler's graph theory foundation.

Seven Bridges of Königsberg

This is a historically notable problem in mathematics. Its negative resolution by Leonhard Euler in 1736 laid the foundations of graph theory and prefigured the

Cleanroom environment with air filtration for semiconductor fabrication in environmental engineering.

ISO 14644-1 Cleanroom Classification Standard

ISO 14644-1 classifies cleanroom air cleanliness by the maximum allowable concentration of airborne particles. The classification, from ISO 1 to ISO 9, is determined by

Team collaboration in Six Sigma project meeting focused on process improvement.

Six Sigma Methodology

Six Sigma is a disciplined, data-driven methodology for eliminating defects in any process – from manufacturing to transactional and from product to service. The statistical

CAD workstation displaying solid modeling techniques B-rep and CSG with geometric shapes.

Solid Modeling: B-rep and CSG

Solid modeling in CAD represents objects as unambiguous, voluminous 3D shapes. Two primary techniques dominate: Boundary Representation (B-rep), which defines a solid by its bounding

Bézier Curves

Developed by French engineer Pierre Bézier for Renault in the 1960s, UNISURF was one of the first true 3D CAD/CAM systems. Its core innovation was

Engineering office with engineers collaborating on CAD data exchange using IGES and STEP formats.

CAD Data Exchange: IGES and STEP

To address the inability of different CAD systems to share data, neutral file formats were created. The Initial Graphics Exchange Specification (IGES), developed in the

HEPA and ULPA Filtration

High-Efficiency Particulate Air (HEPA) and Ultra-Low Particulate Air (ULPA) filters are critical cleanroom components. A HEPA filter must remove at least 99.97% of airborne particles