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The environmental scanning electron microscope (ESEM) is a scanning electron microscope (SEM) that allows for the option of collecting electron micrographs of specimens that are wet, uncoated, or both by allowing for a gaseous environment in the specimen chamber.
The gaseous detection device (GDD) is a method and apparatus for the detection of signals in the gaseous environment of an environmental scanning electron microscope (ESEM) and all scanned beam type of instruments that allow a minimum gas pressure for the detector to operate.
Detecting weak signals is achieved by scanning the organizational environment. The concept of environmental scanning (Aguilar, 1967) describes a process whereby the environment in which an organization operates is systematically scanned for relevant information. The purpose is to identify early signals of possible environmental change and to ...
An account of the early history of scanning electron microscopy has been presented by McMullan. [2] [3] Although Max Knoll produced a photo with a 50 mm object-field-width showing channeling contrast by the use of an electron beam scanner, [4] it was Manfred von Ardenne who in 1937 invented [5] a microscope with high resolution by scanning a very small raster with a demagnified and finely ...
ESEM – Environmental scanning electron microscopy; ESI-MS or ES-MS – Electrospray ionization mass spectrometry or electrospray mass spectrometry; ESR – Electron spin resonance spectroscopy; ESTM – Electrochemical scanning tunneling microscopy; EXAFS – Extended X-ray absorption fine structure; EXSY – Exchange spectroscopy
In business analysis, PEST analysis (political, economic, social and technological) is a framework of external macro-environmental factors used in strategic management and market research. PEST analysis was developed in 1967 by Francis Aguilar as an environmental scanning framework for businesses to understand the external conditions and ...
Environmental analysis is the use of examination and statistical methods to study the chemical and biological factors that determine the quality of an environment. [1] The purpose of this is commonly to monitor and study levels of pollutants in the atmosphere, rivers and other specific settings. [ 2 ]
Horizon scanning is "the systematic examination of potential threats, opportunities and likely future developments which are at the margins of current thinking and planning’ and, continuing, horizon scanning ‘may explore novel and unexpected issues, as well as persistent problems or trends."