A borehole is a narrow shaft bored in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including the extraction of water (drilled water well and tube well), other liquids (such as petroleum), or gases (such as natural gas).It may also be part of a geotechnical investigation, environmental site assessment, mineral exploration, …

OGC Standards and Resources: Made by our Member Community for use by the Global Community Standards International standards that detail conceptual models, interfaces, or encodings to enable interoperability. View all OGC Standards Registries Web accessible sources of information about things ("Concepts") the OGC defines or that communities ask that we host …

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The list of countries or areas contains the names of countries or areas in alphabetical order, their three-digit numerical codes used for statistical processing purposes by the Statistics Division of the United Nations Secretariat, and their three-digit alphabetical codes assigned by the International Organization for Standardization (ISO). 1 In general, this list of countries or areas ...

This is a list of free and open-source software for geological data handling and interpretation. The list is split into broad categories, depending on the intended use of the software and its scope of functionality. Notice that 'free and open-source' requires that the source code is available and users are given a free software license.Simple being 'free of charge' is not sufficient—see ...

A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC.. The input voltage, output voltage and …

Jul 05, 2016 · If a newly-drilled borehole replaces a collapsed borehole, and the water use from that borehole was lawful, the water use from the new borehole will constitute an existing lawful use. Having worked at the Department of Water and Sanitation for many years, Ernst Bertram is a specialist in the application of water legislation to domestic and ...

Mar 24, 2022 · Sanitation Facilities. Many countries face challenges in providing adequate sanitation for their entire populations, leaving people at risk for diseases related to water, sanitation, and hygiene (WASH). Worldwide, an estimated 1.7 billion people lack basic sanitation (about 21% of the world’s population). 1,2 Basic sanitation is defined as having access to …

Civil defense (British English: civil defence) or civil protection is an effort to protect the citizens of a state (generally non-combatants) from man-made and natural disasters.It uses the principles of emergency operations: prevention, mitigation, preparation, response, or emergency evacuation and recovery. Programs of this sort were initially discussed at least as early as the 1920s and ...

A salary is a form of periodic payment from an employer to an employee, which may be specified in an employment contract.It is contrasted with piece wages, where each job, hour or other unit is paid separately, rather than on a periodic basis.From the point of view of running a business, salary can also be viewed as the cost of acquiring and retaining human resources for running …