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  2. Phased array ultrasonics - Wikipedia

    en.wikipedia.org/wiki/Phased_array_ultrasonics

    Phased array ultrasonics (PA) is an advanced method of ultrasonic testing that has applications in medical imaging and industrial nondestructive testing. Common applications are to noninvasively examine the heart or to find flaws in manufactured materials such as welds .

  3. Phased array - Wikipedia

    en.wikipedia.org/wiki/Phased_array

    An active phased array or active electronically scanned array (AESA) is a phased array in which each antenna element has an analog transmitter/receiver (T/R) module [13] which creates the phase shifting required to electronically steer the antenna beam. Active arrays are a more advanced, second-generation phased-array technology that are used ...

  4. Grating lobes - Wikipedia

    en.wikipedia.org/wiki/Grating_lobes

    A typical radiation pattern of phased arrays whose inter-element spacing is greater than half a wavelength, hence the radiation pattern has grating lobes.. For discrete aperture antennas (such as phased arrays) in which the element spacing is greater than a half wavelength, a spatial aliasing effect allows plane waves incident to the array from visible angles other than the desired direction ...

  5. SNP array - Wikipedia

    en.wikipedia.org/wiki/SNP_array

    In molecular biology, SNP array is a type of DNA microarray which is used to detect polymorphisms within a population. A single nucleotide polymorphism (SNP), a variation at a single site in DNA , is the most frequent type of variation in the genome.

  6. DNA microarray - Wikipedia

    en.wikipedia.org/wiki/DNA_microarray

    The traditional solid-phase array is a collection of orderly microscopic "spots", called features, each with thousands of identical and specific probes attached to a solid surface, such as glass, plastic or silicon biochip (commonly known as a genome chip, DNA chip or gene array). Thousands of these features can be placed in known locations on ...

  7. Glossary of biology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_biology

    This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...

  8. Phased-array optics - Wikipedia

    en.wikipedia.org/wiki/Phased-array_optics

    An optical phased array (OPA) is the optical analog of a radio-wave phased array. [1] By dynamically controlling the optical properties of a surface on a microscopic scale, it is possible to steer the direction of light beams (in an OPA transmitter [ 2 ] ), or the view direction of sensors (in an OPA receiver [ 3 ] ), without any moving parts.

  9. Reverse phase protein lysate microarray - Wikipedia

    en.wikipedia.org/wiki/Reverse_phase_protein...

    In forward phase arrays, each array is incubated with one test sample such as a cellular lysate or a patient's serum, but multiple analytes in the sample are tested simultaneously. [4] Figure 1 shows a forward (using antibody as a bait in here) and reverse phase protein microarray at the molecular level.