02 الاستشعار

Compressed sensing - Wikipedia

Compressed sensing (also known as compressive sensing, compressive sampling, or sparse sampling) is a signal processing technique for efficiently acquiring and reconstructing a signal, by finding solutions to underdetermined linear systems.This is based on the principle that, through optimization, the sparsity of a signal can be exploited to recover it from far fewer samples than required by ...

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Ultrasonic transducer - Wikipedia

Ultrasonic transducers convert AC into ultrasound, as well as the reverse.Ultrasonics, typically refers to piezoelectric transducers or capacitive transducers.Piezoelectric crystals change size and shape when a voltage is applied; AC voltage makes them oscillate at the same frequency and produce ultrasonic sound. Capacitive transducers use electrostatic fields between a conductive diaphragm ...

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Wireless sensor network - Wikipedia

Wireless sensor networks (WSNs) refer to networks of spatially dispersed and dedicated sensors that monitor and record the physical conditions of the environment and forward the collected data to a central location.WSNs can measure environmental conditions such as temperature, sound, pollution levels, humidity and wind. These are similar to wireless ad hoc networks in the sense that they rely ...

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homepage - لقاء صناعي

الظهور الأول لأيام الاستشعار المستقبلية The Sensing Future Days مع النظام الأساسي الشامل lerari 02 يوليو 2020 احتفلت أنوجا Anuga بيوم الأغذية المجمدة : أول منتجات مجمدة منذ 91 عامًا

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Capacitive sensing - Wikipedia

In electrical engineering, capacitive sensing (sometimes capacitance sensing) is a technology, based on capacitive coupling, that can detect and measure anything that is conductive or has a dielectric different from air. Many types of sensors use capacitive sensing, including sensors to detect and measure proximity, pressure, position and displacement, force, humidity, fluid level, and ...

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نوابغ الفضاء العرب - arabstospace.com

نوابغ الفضاء العرب هو أول برنامج علمي تدريبي تخصصي مكثَّف لاحتضان ورعاية نخبة من النوابغ والمواهب العربية اللافتة من الوطن العربي، لتدريبهم في مجال علوم وتكنولوجيا الفضاء، وتأهيلهم للعمل ...

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Wireless sensor network - Wikipedia

Wireless sensor networks (WSNs) refer to networks of spatially dispersed and dedicated sensors that monitor and record the physical conditions of the environment and forward the collected data to a central location.WSNs can measure environmental conditions such as temperature, sound, pollution levels, humidity and wind. These are similar to wireless ad hoc networks in the sense that they rely ...

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Remote Sensors | Earthdata

01-02-2021 · Remote sensing instruments are of two primary types: Active sensors, provide their own source of energy to illuminate the objects they observe. An active sensor emits radiation in the direction of the target to be investigated. The sensor then detects and measures the radiation that is reflected or backscattered from the target.

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Capacitive sensing - Wikipedia

In electrical engineering, capacitive sensing (sometimes capacitance sensing) is a technology, based on capacitive coupling, that can detect and measure anything that is conductive or has a dielectric different from air. Many types of sensors use capacitive sensing, including sensors to detect and measure proximity, pressure, position and displacement, force, humidity, fluid level, and ...

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Geo Zaghlol

24-10-2020 · كتاب الاستشعار الهيدرولوجي عن بعد Hydrologic Remote Sensing : Eslam atef : 2020-10-23T14:25:04Z الجمعة, 23 أكتوبر 2020 - 02:25 م

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