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searching for Fourier transform 106 found (2181 total)

alternate case: fourier transform

Astronomical interferometer (2,657 words) [view diff] case mismatch in snippet view article find links to article

March 2013. Max Tegmark and Matias Zaldarriaga have proposed the Fast Fourier Transform Telescope which would rely on extensive computer power rather than

Collision-induced dissociation (1,346 words) [view diff] exact match in snippet view article find links to article

collision-induced dissociation (SORI-CID) is a CID technique used in Fourier transform ion cyclotron resonance mass spectrometry which involves accelerating

Hybrid mass spectrometer (738 words) [view diff] exact match in snippet view article find links to article

trap can be 3-D or a linear trap. A linear ion trap combined with a Fourier transform ion cyclotron resonance or Orbitrap mass spectrometer is marketed

Earth Observing-3 (119 words) [view diff] case mismatch in snippet view article find links to article

and the US Navy's Office of Naval Research. Geosynchronous Imaging Fourier Transform Spectrometer — Indian Ocean METOC Imager (GIFTS-IOMI) was the instrument

Geophysical survey (2,959 words) [view diff] exact match in snippet view article find links to article

motivation for development of the Wavelet transform was the Short-time Fourier transform. The signal to be analysed, say f(t) is multiplied with a window function

Electron-capture dissociation (3,262 words) [view diff] exact match in snippet view article find links to article

effectively has been promising. Although ECD is primarily used in Fourier transform ion cyclotron resonance mass spectrometry, investigators have indicated

Fellgett's advantage (558 words) [view diff] exact match in snippet view article find links to article

noise, a multiplexed measurement such as the signal generated by a Fourier transform spectrometer can produce a relative improvement in SNR, compared to

OpenChrom (908 words) [view diff] no match in snippet view article find links to article

OpenChrom is an open source software for the analysis and visualization of mass spectrometric and chromatographic data. Its focus is to handle native data

Sliding DFT (396 words) [view diff] exact match in snippet view article find links to article

In applied mathematics, the sliding discrete Fourier transform is a recursive algorithm to compute successive STFTs of input data frames that are a single

Impulse response (1,211 words) [view diff] exact match in snippet view article find links to article

objects. Since the impulse function contains all frequencies (see the Fourier transform of the Dirac delta function, showing infinite frequency bandwidth

Melvin Barnett Comisarow (180 words) [view diff] no match in snippet view article find links to article

is a Canadian physicist and analytical chemist who co-invented the Fourier-transform ion cyclotron resonance technique of mass spectroscopy, together with

Impulse response (1,211 words) [view diff] exact match in snippet view article find links to article

objects. Since the impulse function contains all frequencies (see the Fourier transform of the Dirac delta function, showing infinite frequency bandwidth

Rotational spectroscopy (7,154 words) [view diff] case mismatch in snippet view article find links to article

Very high resolution Raman spectra can be obtained by adapting a Fourier Transform Infrared Spectrometer. An example is the spectrum of 15 N 2. It shows

SCISAT-1 (744 words) [view diff] exact match in snippet view article find links to article

observations of the Earth's atmosphere. Its main instruments are an optical Fourier transform infrared spectrometer, the ACE-FTS Instrument, and an ultraviolet

Alan G. Marshall (244 words) [view diff] exact match in snippet view article find links to article

his scientific career to developing a scientific technique known as Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry, which he co-invented

Michael L. Gross (chemist) (1,257 words) [view diff] exact match in snippet view article

atom. In the late 1970s, Charles Wilkins and Gross built the second Fourier transform ion cyclotron resonance mass spectrometer and were the first to use

Kristina Håkansson (487 words) [view diff] exact match in snippet view article find links to article

Håkansson is an analytical chemist known for her contribution in Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry for biomolecular

Gareth A. Morris (647 words) [view diff] exact match in snippet view article find links to article

indexed by Google Scholar Morris, Gareth Alun (1978). New techniques in fourier transform nuclear magnetic resonance (DPhil thesis). University of Oxford. Archived

James W. Brault (273 words) [view diff] exact match in snippet view article find links to article

– November 1, 2008) was a 20th-century scientist and a pioneer of Fourier transform spectroscopy. He was a world-leading expert in physical instrument

Ion cyclotron resonance (742 words) [view diff] exact match in snippet view article find links to article

masses of an ionized analyte in mass spectrometry, particularly with Fourier transform ion cyclotron resonance mass spectrometers. It can also be used to

Nati Linial (651 words) [view diff] case mismatch in snippet view article find links to article

the FOCS Test of Time Award for the paper "Constant Depth Circuits, Fourier Transform, and Learnability", co-authored with Yishay Mansour and Noam Nisan

James W. Brault (273 words) [view diff] exact match in snippet view article find links to article

– November 1, 2008) was a 20th-century scientist and a pioneer of Fourier transform spectroscopy. He was a world-leading expert in physical instrument

Momentum operator (2,146 words) [view diff] exact match in snippet view article find links to article

}}(p) \over {\sqrt {2\pi \hbar }}},} so the tilde represents the Fourier transform, in converting from coordinate space to momentum space. It then holds

Kristina Håkansson (487 words) [view diff] exact match in snippet view article find links to article

Håkansson is an analytical chemist known for her contribution in Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry for biomolecular

Electron ionization (4,013 words) [view diff] exact match in snippet view article find links to article

of flight (TOF) or orthogonal TOF mass spectrometry (OA-TOF MS), Fourier transform ion cyclotron resonance (FT-ICR MS) and quadrupole or ion trap mass

Nati Linial (651 words) [view diff] case mismatch in snippet view article find links to article

the FOCS Test of Time Award for the paper "Constant Depth Circuits, Fourier Transform, and Learnability", co-authored with Yishay Mansour and Noam Nisan

N-slit interferometric equation (1,930 words) [view diff] no match in snippet view article find links to article

dispersion is the quantity in parentheses. Researchers working on Fourier-transform ghost imaging consider the N-slit interferometric equation as an avenue

Janine Connes (648 words) [view diff] exact match in snippet view article find links to article

French astronomer whose research led to the establishment of the Fourier transform infrared spectroscopy method, which was of major significance and

Robinson oscillator (288 words) [view diff] exact match in snippet view article find links to article

magnetic resonance imaging (MRI) systems are based on pulsed (or Fourier transform) NMR; they do not rely on the use of such oscillators. The key feature

MightySat-2.1 (412 words) [view diff] exact match in snippet view article find links to article

solid state recorder for science data. Among its 10 experiments was a Fourier transform hyperspectral imager. MightSat II.1 was launched on July 19, 2000

Attenuated total reflectance (967 words) [view diff] exact match in snippet view article find links to article

accessibility, rapid sample turnaround and ease of use of ATR with Fourier transform infrared spectroscopy (FTIR) has led to substantial use by the scientific

Evolved gas analysis (653 words) [view diff] exact match in snippet view article find links to article

different analytical methods can be employed such as mass spectrometry, Fourier transform spectroscopy, gas chromatography, or optical in-situ evolved gas analysis

Greenhouse gas monitoring (1,248 words) [view diff] case mismatch in snippet view article find links to article

ozone in the lower thermosphere. The Atmospheric Chemistry Experiment‐Fourier Transform Spectrometer (ACE-FTS) is a tool used for measuring nitrous oxide

Reed–Solomon error correction (12,395 words) [view diff] exact match in snippet view article find links to article

since a discrete Fourier transform is a linear operator, R(x) = C(x) + E(x). Transform r(x) to R(x) using discrete Fourier transform. Since the calculation

Spectral Database for Organic Compounds (933 words) [view diff] no match in snippet view article find links to article

spectra: laser Raman spectra, electron ionization mass spectra (EI-MS), Fourier-transform infrared (FT-IR) spectra, 1H nuclear magnetic resonance (1H-NMR) spectra

Wolfgang Stahl (796 words) [view diff] no match in snippet view article find links to article

(1996-12-01). "A multioctave coaxially oriented beam‐resonator arrangement Fourier‐transform microwave spectrometer". Review of Scientific Instruments. 67 (12):

Interferometry (10,987 words) [view diff] exact match in snippet view article find links to article

the highest-precision length measuring instruments in existence. In Fourier transform spectroscopy they are used to analyze light containing features of

List of mass spectrometry acronyms (1,055 words) [view diff] exact match in snippet view article find links to article

FI – Field ionization FT-ICR MS – Fourier transform ion cyclotron resonance mass spectrometer FTMS – Fourier transform mass spectrometer GDMS – Glow discharge

Ringing artifacts (3,411 words) [view diff] exact match in snippet view article find links to article

frequency domain) causes ripples in the time domain, in each case the Fourier transform of the rectangular function being the sinc function. There are related

Top-down proteomics (1,363 words) [view diff] exact match in snippet view article find links to article

are typically ionized by electrospray ionization and trapped in a Fourier transform ion cyclotron resonance (Penning trap), quadrupole ion trap (Paul

Desorption electrospray ionization (3,290 words) [view diff] exact match in snippet view article find links to article

spectrum created maybe very complex. Therefore, you can couple a Fourier transform ion cyclotron resonance to DESI, allowing for a higher resolution

Selected ion monitoring (225 words) [view diff] exact match in snippet view article find links to article

therefore most common—on quadrupole mass spectrometers, Orbitrap, and Fourier transform ion cyclotron resonance mass spectrometers. Selected reaction monitoring

Patrick Ion (243 words) [view diff] exact match in snippet view article find links to article

in the field of quantum stochastics, q-analogues and the discrete Fourier transform in elementary geometry. He has also translated several mathematical

Biomedical spectroscopy (149 words) [view diff] exact match in snippet view article find links to article

diagnosis of disease; an example is Magnetic resonance imaging (MRI). Fourier transform infrared (FTIR) spectroscopic imaging is a form of chemical imaging

Multiple satellite imaging (931 words) [view diff] case mismatch in snippet view article find links to article

Computing the 2-D Discrete Fourier Transform or Sweet-talking MATLAB into Making Cool Pictures. Owens, Robyn. "Fourier Transform Theory." 29 October 1997

Fredric J. Harris (410 words) [view diff] case mismatch in snippet view article find links to article

paper "On the use of Windows for Harmonic Analysis with the Discrete Fourier Transform." He is also the author of the textbook Multi-rate Signal Processing

Tropospheric Emission Spectrometer (139 words) [view diff] case mismatch in snippet view article find links to article

state of the earth's troposphere. TES was a high-resolution infrared Fourier Transform spectrometer and provided key data for studying tropospheric chemistry

Multidimensional seismic data processing (1,936 words) [view diff] exact match in snippet view article find links to article

filters based on the Fourier transform, such as the minimax design method and design by transformation. One disadvantage of Fourier transform design is its global

Triple correlation (679 words) [view diff] exact match in snippet view article find links to article

{\displaystyle \int _{-\infty }^{\infty }f^{*}(x)f(x+s_{1})f(x+s_{2})dx.} The Fourier transform of triple correlation is the bispectrum. The triple correlation extends

History of mass spectrometry (2,961 words) [view diff] exact match in snippet view article find links to article

improvements in the amount of time it takes to analyze a sample. Fourier transform ion cyclotron resonance mass spectrometry was developed by Alan G

Conservation and restoration of ivory objects (3,804 words) [view diff] case mismatch in snippet view article find links to article

materials and work done on the ivory along with possible pigmentation. "Fourier Transform Infrared Spectroscopy (FTIR) is an analytical method that characterizes

Infrared atmospheric sounding interferometer (2,626 words) [view diff] exact match in snippet view article find links to article

The infrared atmospheric sounding interferometer (IASI) is a Fourier transform spectrometer based on the Michelson interferometer, associated with an

Optical correlator (472 words) [view diff] exact match in snippet view article find links to article

,\eta )H^{*}(-\xi ,-\eta )} where the capital letters denote the Fourier transform of what the lower case letter denotes. So the correlation can then

Inverse Laplace transform (1,049 words) [view diff] exact match in snippet view article find links to article

the above inverse integral formula becomes identical to the inverse Fourier transform. In practice, computing the complex integral can be done by using

Calcium monohydride (1,153 words) [view diff] case mismatch in snippet view article find links to article

0059. Frum, C.I.; H.M. Pickett (1993). "High-Resolution Infrared Fourier Transform Emission Spectroscopy of Metal Hydrides: X2Σ+ state of CaH". Journal

Causal filter (680 words) [view diff] exact match in snippet view article find links to article

= 0 for all t < 0. Let h(t) be a causal filter with corresponding Fourier transform H(ω). Define the function g ( t ) = h ( t ) + h ∗ ( − t ) 2 {\displaystyle

Paramormyrops hopkinsi (293 words) [view diff] exact match in snippet view article find links to article

mean duration of the EOD is 2.8 ms for females, 2.96 for males. The Fourier transform of the EOD peaks at 536 Hz for females, 468 for males. Both male and

Paramormyrops hopkinsi (293 words) [view diff] exact match in snippet view article find links to article

mean duration of the EOD is 2.8 ms for females, 2.96 for males. The Fourier transform of the EOD peaks at 536 Hz for females, 468 for males. Both male and

List of materials analysis methods (1,398 words) [view diff] no match in snippet view article find links to article

ERD FTICR or FT-MS – Fourier-transform ion cyclotron resonance or Fourier-transform mass spectrometry FTIR – Fourier-transform infrared spectroscopy

Edge case (683 words) [view diff] exact match in snippet view article find links to article

Retrieved 2014-01-16. Cho, Shinil (October 2018), "The Fourier transform", Fourier Transform and Its Applications Using Microsoft EXCEL®, IOP Publishing

Causal filter (680 words) [view diff] exact match in snippet view article find links to article

= 0 for all t < 0. Let h(t) be a causal filter with corresponding Fourier transform H(ω). Define the function g ( t ) = h ( t ) + h ∗ ( − t ) 2 {\displaystyle

Parvez Haris (1,113 words) [view diff] exact match in snippet view article find links to article

spectra Fourier transform infrared spectrometric analysis of protein conformation: effect of sampling method and stress factors Does Fourier-transform infrared

Pierre Jacquinot (217 words) [view diff] no match in snippet view article find links to article

advised the work of Pierre [fr] and Janine Connes who developed the Fourier-transform infrared spectroscopy between 1954 and 1966. In 1966 he entered the

Museum Conservation Institute (548 words) [view diff] exact match in snippet view article find links to article

coupled plasma mass spectrometry Fourier transform infrared spectrometry Raman spectrometry, including Fourier transform Raman and portable Raman spectroscopy

Spectral (disambiguation) (149 words) [view diff] case mismatch in snippet view article

differential equations, potentially involving the use of the Fast Fourier Transform Spectral analysis (disambiguation) Spectral, a modern serif typeface

Nerve agent (6,535 words) [view diff] exact match in snippet view article find links to article

Traditional IR absorption has been reported to detect gaseous nerve agents. Fourier transform infrared (FTIR) spectroscopy has been reported to detect gaseous nerve

Space-based measurements of carbon dioxide (2,751 words) [view diff] case mismatch in snippet view article find links to article

thermosphere in thermal bands. ACE-FTS (Atmospheric Chemistry Experiment-Fourier Transform Spectrometer) onboard SCISAT-1 launched 13 August 2003 measures solar

Planar algebra (3,082 words) [view diff] exact match in snippet view article find links to article

{\mathcal {F}}:{\mathcal {P}}_{2,\pm }\to {\mathcal {P}}_{2,\mp }} be the Fourier transform, also called 1 {\displaystyle 1} -click (of the outer star) or 90

Peter Stilbs (393 words) [view diff] case mismatch in snippet view article find links to article

peer-reviewed papers) has been summarised in a 1987 review article "Fourier Transform Pulsed-Gradient Spin-Echo Studies of Molecular Diffusion" (which has

John O'Sullivan (engineer) (809 words) [view diff] exact match in snippet view article

Systems 2000 CSIRO Medal for development and application of fast Fourier transform technology 1999–2001 Vice President Systems Engineering, Radiata Communications

Kaiser window (983 words) [view diff] exact match in snippet view article find links to article

lobe but which is difficult to compute. The Kaiser window and its Fourier transform are given by: w 0 ( x ) ≜ { 1 L I 0 [ π α 1 − ( 2 x / L ) 2 ] I 0

Matrix-assisted ionization (1,120 words) [view diff] exact match in snippet view article find links to article

ionization techniques can be used with an Orbitrap mass analyzer, Orbitrap fourier transform mass spectrometer, linear trap quadrupole and MALDI-TOF. In Matrix-assisted

Lorenzo Ramero (308 words) [view diff] exact match in snippet view article find links to article

Beilinson, with a thesis titled An ℓ {\displaystyle \ell } -adic Fourier transform over local fields. Together with Ofer Gabber, Ramero developed the

Ron Heeren (1,791 words) [view diff] exact match in snippet view article find links to article

novel method to determine collisional energy transfer efficiency by Fourier transform ion cyclotron resonance mass spectrometry". Rapid Communications in

Microscopy (8,316 words) [view diff] case mismatch in snippet view article find links to article

infrared wavelengths. In the typical instrument configuration, a Fourier Transform Infrared Spectrometer (FTIR) is combined with an optical microscope

Nathalie Picqué (533 words) [view diff] no match in snippet view article find links to article

resolution spectroscopy using ultrashort pulses of light combined with Fourier-transform spectroscopy to reveal the fine chemistry of samples, in particular

Reconstruction from projections (1,307 words) [view diff] exact match in snippet view article find links to article

{\displaystyle d(u,v)} can be obtained from its Fourier transform by means of the Fourier transform inversion integral d ( u , v ) = 1 4 π 2 ∫ − ∞ ∞

High-resolution transmission electron microscopy (2,871 words) [view diff] exact match in snippet view article find links to article

so-called Thon ring pattern (named for Friedrich Thon) appearing in the Fourier transform modulus of an image of a thin amorphous film. The contrast of a high

Desorption atmospheric pressure photoionization (3,002 words) [view diff] exact match in snippet view article find links to article

detect shale oils and some smaller nitrogen containing aromatics. Fourier transform ion cyclotron resonance (FTICR) is a technique that is normally coupled

Imaging spectrometer (2,348 words) [view diff] exact match in snippet view article find links to article

dimensional reformatting techniques), wedge imaging spectrometer, Fourier transform imaging spectrometer, computed tomography imaging spectrometer (CTIS)

Thermal analysis (1,753 words) [view diff] exact match in snippet view article find links to article

simultaneous thermal analysis instrument to an Evolved Gas Analyzer like Fourier transform infrared spectroscopy or mass spectrometry. Other, less common, methods

Historic paint analysis (6,145 words) [view diff] no match in snippet view article find links to article

microscopy, fluorescent light microscopy, polarized light microscopy, and Fourier-transform infrared spectroscopy. These methods are useful for dating purposes

Wafer bond characterization (3,294 words) [view diff] exact match in snippet view article find links to article

Unbonded areas can be shown if the void opening (height) is ≥ 1 nm. The Fourier transform infrared (FT-IR) spectroscopy is a non-destructive hermeticity characterization

Tandem mass spectrometry (7,443 words) [view diff] exact match in snippet view article find links to article

multi-sector mass spectrometer, ion trap, quadrupole–time of flight (Q-TOF), Fourier transform ion cyclotron resonance (FT-ICR), and hybrid mass spectrometers. Triple

Y and H transforms (251 words) [view diff] exact match in snippet view article find links to article

more commonly seen due to their connection with the 2-dimensional Fourier transform. The Y, H transforms appear in situations with singular behaviour

Network for the Detection of Atmospheric Composition Change (266 words) [view diff] no match in snippet view article find links to article

NDACC in 1995. Instrumentation includes lidar, microwave radiometers, Fourier-transform infrared, UV-visible DOAS (differential optical absorption spectroscopy)-type

Principal root of unity (226 words) [view diff] exact match in snippet view article find links to article

is that it is a necessary condition for the theory of the discrete Fourier transform to work out correctly. Bini, D.; Pan, V. (1994), Polynomial and Matrix

Ion trap (2,685 words) [view diff] no match in snippet view article find links to article

_{c}} . An ion trap mass spectrometer may incorporate a Penning trap (Fourier-transform ion cyclotron resonance), Paul trap or the Kingdon trap. The Orbitrap

Vibrational circular dichroism (2,124 words) [view diff] case mismatch in snippet view article find links to article

"Vibrational Circular Dichroism of Polypeptides XII. Re-evaluation of the Fourier Transform Vibrational Circular Dichroism of Poly-gamma-Benzyl-L-Glutamate".

Roland de Mois (210 words) [view diff] no match in snippet view article find links to article

Research analyzed his "Assumption of the Virgin Mary" with X-ray, Fourier-transform infrared spectroscopy, and Raman spectroscopy. It was determined to

Poisson wavelet (1,541 words) [view diff] exact match in snippet view article find links to article

{\displaystyle \int _{-\infty }^{\infty }\psi _{n}(t)\,dt=0.} The Fourier transform of ψ n ( t ) {\displaystyle \psi _{n}(t)} is given Ψ ( ω ) = − i ω

Kendrick mass (1,884 words) [view diff] case mismatch in snippet view article find links to article

(2014-08-05). "Characterization of Naphthenic Acids by Gas Chromatography-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry". Analytical Chemistry.

Kendrick mass (1,884 words) [view diff] case mismatch in snippet view article find links to article

(2014-08-05). "Characterization of Naphthenic Acids by Gas Chromatography-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry". Analytical Chemistry.

Digital delay line (2,449 words) [view diff] exact match in snippet view article find links to article

d e a l [ n ] {\displaystyle h_{ideal}[n]} is the sampled inverse Fourier transform of H i d e a l ( ω ) {\displaystyle H_{ideal}(\omega )} , which produces

Membrane technology (4,046 words) [view diff] case mismatch in snippet view article find links to article

Scanning Electron Microscope, the Transmission electron Microscope, the Fourier Transform Infrared Spectroscopy, X-ray Diffraction, and Liquid–Liquid Displacement

Nicholas U. Mayall Telescope (1,415 words) [view diff] case mismatch in snippet view article find links to article

the upcoming DESI instrument. Fourier Transform Spectrograph One instrument used with telescope was the Fourier Transform Spectrograph. The FTS was used

Valuation (geometry) (5,983 words) [view diff] exact match in snippet view article

valuations remain real-valued after the Fourier transform. For odd valuations, the description of the Fourier transform is substantially more involved. Unlike

Hwyl Nofio (593 words) [view diff] case mismatch in snippet view article find links to article

Nofio) track (Broken Again);CD ) Brave New Wales (Various Artists) (Fourier Transform, 2008;CD box set) The following full-length albums have never seen

Iodine nitrate (203 words) [view diff] no match in snippet view article find links to article

Barnes, Ian; Becker, Karl H.; Starcke, Juergen (November 1991). "Fourier-transform IR spectroscopic observation of gaseous nitrosyl iodine, nitryl iodine

Reststrahlen effect (463 words) [view diff] exact match in snippet view article find links to article

techniques of remote sensing. John Wiley and Sons. Griffiths, P.R. (1983) Fourier transform infrared spectrometry. Science, 222, 297–302. Goldberg, A. et al.

Electron crystallography (4,958 words) [view diff] exact match in snippet view article find links to article

information can be experimentally determined from an image's Fourier transform. The Fourier transform of an atomic resolution image is similar, but different

Peter D. Welch (572 words) [view diff] exact match in snippet view article find links to article

Operations Research (1983-1987). Welch's paper on the "use of fast Fourier transform for the estimation of power spectra" or Welch's method, has been cited

Shinnar–Le Roux algorithm (591 words) [view diff] case mismatch in snippet view article find links to article

angles, the RF excitation waveform can be approximated by the inverse Fourier Transform of the desired frequency profile, using the excitation kspace analysis

Morse/Long-range potential (2,264 words) [view diff] no match in snippet view article find links to article

Knockel; E. Tiemann (April 2010). "The 1S+1S asymptote of Sr2 studied by Fourier-transform spectroscopy". The European Physical Journal D. 57 (2): 171–177. arXiv:1001

Morse potential (3,472 words) [view diff] no match in snippet view article find links to article

Knockel; E. Tiemann (April 2010). "The 1S+1S asymptote of Sr2 studied by Fourier-transform spectroscopy". The European Physical Journal D. 57 (2): 171–177. arXiv:1001

Rader (302 words) [view diff] exact match in snippet view article find links to article

United States Rader's FFT algorithm, fast Fourier transform algorithm that computes the discrete Fourier transform of prime sizes Ræder This page lists people