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More commonly used is the power spectral density (PSD, or simply power spectrum), which applies to signals existing over all time, or over a time period large enough (especially in relation to the duration of a measurement) that it could as well have been over an infinite time interval. The PSD then refers to the spectral energy distribution ...
The postsynaptic density (PSD) is a protein dense specialization attached to the postsynaptic membrane. PSDs were originally identified by electron microscopy as an electron-dense region at the membrane of a postsynaptic neuron. The PSD is in close apposition to the presynaptic active zone and ensures that receptors are in close proximity to ...
Granulometry. In granulometry, the particle-size distribution (PSD) of a powder, or granular material, or particles dispersed in fluid, is a list of values or a mathematical function that defines the relative amount, typically by mass, of particles present according to size. [1] Significant energy is usually required to disintegrate soil, etc ...
PSD: Photoshop Document Adobe Systems.psd, .psb, .pdb, ... Full name Owner based Format File extension MIME type Application Patent-free Technical details. Format
PSD (rapper), a Californian rapper and hip-hop producer. Port Said Airport, Egypt (IATA code PSD) Private Sector Development, term used in international development. PSD Bank, German banking group. Patricia Street Deli, a famous sandwich and soup restaurant located in the tourist town of Jasper, Alberta, Canada.
In mathematics, positive semidefinite may refer to: Positive semidefinite function. Positive semidefinite matrix. Positive semidefinite quadratic form. Positive semidefinite bilinear form. Category: Mathematics disambiguation pages.
Frequency. 8.7% (lifetime risk); 3.5% (12-month risk) (US) [ 7 ] Post-traumatic stress disorder (PTSD) [ b ] is a mental and behavioral disorder [ 8 ] that develops from experiencing a traumatic event, such as sexual assault, warfare, traffic collisions, child abuse, domestic violence, or other threats on a person's life or well-being. [ 1 ][ 9 ...
The PSD contained two main sections: The "market rules" described which type of organisations could provide payment services. Next to credit institutions (i.e. banks) and certain authorities (e.g. central banks, government bodies), the PSD mentioned electronic money institutions (EMI), created by the E-Money Directive in 2000, and created the new category of "payment institutions" (PI) with ...