what does a emitting mean
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- To emit means to give off or let out, and it usually has a lot to do with gases, smells and noises. All of which could be potentially embarrassing, depending on where they're coming from. play
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Optotherm Support What is Emissivity. All objects and materials do not radiate infrared (thermal) energy equally. Emissivity is a term describing the efficiency with which a material radiates infrared energy. A blackbody has an emissivity of 1.00 and no other material can radiate more thermal energy at a given temperature. An object with an emissivity of 0 emits no infrared energy. Real-world objects have emissivity values between 0 and 1.00. The lower emissivity of most real-world materials reduces the intensity of radiation from the theoretical predictions of Planck’s Law. The temperature of an object and its emissivity define how much infrared energy an object will emit.
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- An otoacoustic emission (OAE) is a sound which is generated from within the inner ear.pontaneous otoacoustic emissions (SOAE)s are sounds that are emitted from the ear without external stimulation and are measurable with sensitive microphones in the external ear canal. At least one SOAE can be detected in app.
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- a person or thing that emits. Electronics. an electrode on a transistor from which a flow of electrons or holes enters the region between the electrodes.
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Emission spectrum The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state.
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- Confidence votes 3. Emia is the Greek suffix meaning a disease of the blood. An example of this is leukemia, which is cancer of the blood. Emia</b> is the Greek</b> suffix meaning a disease of the blood. An example of this is leukemia, which is cancer of the blood.
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- Radiation is the energy emitted from a surface as particles or waves. The rate of radiative emission per unit time and per unit surface area , or radiative flux, is represented as Q. Note that this Q is actually power per unit area, or P/A; it has different units than the Q that we used for conduction.
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emanate Emanating definition, to flow out, issue, or proceed, as from a source or origin; come forth; originate. See more.
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- In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. For instance, sunlight is attenuated by dark glasses, X-rays are attenuated by lead, and light and sound are attenuated by water.n engineering, attenuation is usually measured in units of decibels per unit length of medium (dB/cm, dB/km, etc.) and is represented by the attenuation coefficient of the medium in question.
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electromagnetic interference (EMI) electromagnetic interference (EMI) Share this item with your network: EMI (electromagnetic interference) is the disruption of operation of an electronic device when it is in the vicinity of an electromagnetic field (EM field) in the radio frequency (RF) spectrum that is caused by another electronic device. Download this free guide.
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emitter a person or thing that emits. 2. Electronics. an electrode on a transistor from which a flow of electrons or holes enters the region between the electrodes. Origin of emitter.
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Emission spectrum In physics, emission is the process by which a higher energy quantum mechanical state of a particle becomes converted to a lower one through the emission of a photon, resulting in the production of light. The frequency of light emitted is a function of the energy of the transition.n physics, emission is the process by which a higher energy quantum mechanical state of a particle becomes converted to a lower one through the emission of a photon, resulting in the production of light. The frequency of light emitted is a function of the energy of the transition.
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What is emissivity and why is it important? (FAQ - Thermal) Emissivity is defined as the ratio of the energy radiated from a material's surface to that radiated from a blackbody (a perfect emitter) at the same temperature and wavelength and under the same viewing conditions. It is a dimensionless number between 0 (for a perfect reflector) and 1 (for a perfect emitter).
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Definitions &Translations Thermionic emission Thermionic emission is the heat-induced flow of charge carriers from a surface or over a potential-energy barrier. This occurs because the thermal energy given to the carrier overcomes the binding potential, also known as work function of the metal.
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- plural emis·siv·i·ties. : the relative power of a surface to emit heat by radiation: the ratio of the radiant energy emitted by a surface to that emitted by a blackbody at the same temperature.
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Why do radioactive isotopes emit radiation? Report Abuse. Because they're unstable. The nuclei of radioactive isotopes have more neutrons than protons (a stable element would have equal numbers of each) and thus emit neutrons as a way of balancing things out. This process is called decay.The time it takes for half a given amount to decay into a more stable form is called the half-life.eport Abuse. Because they're unstable. The nuclei of radioactive isotopes have more neutrons than protons (a stable element would have equal numbers of each) and thus emit neutrons as a way of balancing things out. This process is called decay.
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Greek word for wisdom? If you are talking about the Hebrew language, it's eevreet (עִבְרִית). If you are referring to the people of Ancient Israel, a male Hebrew is eevree (עִבְרִי) a…nd a female is eevriyah (עִבְרִיה).
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What Causes an Atom to Emit Light? Quick Answer. When the electrons located inside an atom become excited, they emit radiation or light. Every electron in an atom is housed in a shell that contains its own frequency, which will begin to oscillate when heat or an electric field is applied to the atom. Continue Reading.
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Sidestream smoke Sidestream smoke is smoke which goes into the air directly from a burning cigarette, cigar or smoking pipe.[1]Sidestream smoke is the main component of Second-hand smoke (SHS…), also known as Environmental Tobacco Smoke (ETS) or passive smoking [2] The chemical constituents of sidestream smoke are different from those of directly inhaled ( ...
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- the sun emits electromagnetic radition in a large range of the spectrum including x-rays, UV light and visible light. it also emits what is called solar wind which is large am … ounds of radiation and particles such as helium and hydrogen ions....I'm no expert, but hopefully its somewhere for you to start googling. ;).mit means to give off, to expel, to send out, or discharge; as of light, heat, or radiation, vapor, etc.; The ozone layer blocks some harmful rays which the sun emits. Or s … our milk emits a bad odor.
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Does the Product Emit Radiation? (1) the term electronic product radiation means - (A) any ionizing or non-ionizing electromagnetic or particulate radiation, or. (B) any sonic, infrasonic, or ultrasonic wave, which is emitted from an electronic product as the result of the operation of an electronic circuit in such product;
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Optotherm Support Emissivity is a term describing the efficiency with which a material radiates infrared energy. A blackbody has an emissivity of 1.00 and no other material can radiate more thermal energy at a given temperature. An object with an emissivity of 0 emits no infrared energy.
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Radiation Basics A gamma ray is electromagnetic radiation (similar to visible light, but at a much higher energy in the electromagnetic spectrum) given off by the nucleus of an atom as a means of releasing excess energy, and is oftentimes released when an atom undergoes decay by emitting an alpha or a beta particle.
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Use low-cost materials to increase target emissivity Emissivity is the efficiency with which an object emits infrared radiation, compared to a perfect emitter (or a so-called blackbody, which has an emissivity value of 1). In reality, targets we are likely to measure are not perfect radiators, with an emissivity value below 1.
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- emia: Suffix meaning blood or referring to the presence of a substance in the blood. As for example, anemia (lack of blood) and hypervolemia (too high a volume of blood). The ending-emia is one of the building blocks derived from Greek (in this case) or Latin used to construct medical terms.From the Greek haima blood + -ia.s for example, anemia (lack of blood) and hypervolemia (too high a volume of blood). The ending-emia is one of the building blocks derived from Greek (in this case) or Latin used to construct medical terms. From the Greek haima blood + -ia.
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- Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Radiation(noun) the act of radiating, or the state of being radiated; emission and diffusion of rays of light; beamy brightness. 2  Radiation(noun) the shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat.