Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Refractometry: Measurement of the index of refraction (the ratio of the velocity of light or other radiation in the first of two media to its velocity in the second as it passes from one into the other).Polyglactin 910: A polyester used for absorbable sutures & surgical mesh, especially in ophthalmic surgery. 2-Hydroxy-propanoic acid polymer with polymerized hydroxyacetic acid, which forms 3,6-dimethyl-1,4-dioxane-dione polymer with 1,4-dioxane-2,5-dione copolymer of molecular weight about 80,000 daltons.Inventions: A novel composition, device, or process, independently conceived de novo or derived from a pre-existing model.Intellectual Property: Property, such as patents, trademarks, and copyright, that results from creative effort. The Patent and Copyright Clause (Art. 1, Sec. 8, cl. 8) of the United States Constitution provides for promoting the progress of science and useful arts by securing for limited times to authors and inventors, the exclusive right to their respective writings and discoveries. (From Black's Law Dictionary, 5th ed, p1014)Ultraviolet Rays: That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants.Ion Channels: Gated, ion-selective glycoproteins that traverse membranes. The stimulus for ION CHANNEL GATING can be due to a variety of stimuli such as LIGANDS, a TRANSMEMBRANE POTENTIAL DIFFERENCE, mechanical deformation or through INTRACELLULAR SIGNALING PEPTIDES AND PROTEINS.Centrifugation: Process of using a rotating machine to generate centrifugal force to separate substances of different densities, remove moisture, or simulate gravitational effects. It employs a large motor-driven apparatus with a long arm, at the end of which human and animal subjects, biological specimens, or equipment can be revolved and rotated at various speeds to study gravitational effects. (From Websters, 10th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Autoanalysis: Method of analyzing chemicals using automation.Microscopy, Electron, Scanning: Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.Optics and Photonics: A specialized field of physics and engineering involved in studying the behavior and properties of light and the technology of analyzing, generating, transmitting, and manipulating ELECTROMAGNETIC RADIATION in the visible, infrared, and ultraviolet range.Ion Channel Gating: The opening and closing of ion channels due to a stimulus. The stimulus can be a change in membrane potential (voltage-gated), drugs or chemical transmitters (ligand-gated), or a mechanical deformation. Gating is thought to involve conformational changes of the ion channel which alters selective permeability.Golgi Apparatus: A stack of flattened vesicles that functions in posttranslational processing and sorting of proteins, receiving them from the rough ENDOPLASMIC RETICULUM and directing them to secretory vesicles, LYSOSOMES, or the CELL MEMBRANE. The movement of proteins takes place by transfer vesicles that bud off from the rough endoplasmic reticulum or Golgi apparatus and fuse with the Golgi, lysosomes or cell membrane. (From Glick, Glossary of Biochemistry and Molecular Biology, 1990)Planets: Celestial bodies orbiting around the sun or other stars.Mydriasis: Dilation of pupils to greater than 6 mm combined with failure of the pupils to constrict when stimulated with light. This condition may occur due to injury of the pupillary fibers in the oculomotor nerve, in acute angle-closure glaucoma, and in ADIE SYNDROME.Cinchona: A genus of rubiaceous South American trees that yields the toxic CINCHONA ALKALOIDS from their bark; QUININE; QUINIDINE; chinconine, cinchonidine and others are used to treat MALARIA and CARDIAC ARRHYTHMIAS.Adie Syndrome: A syndrome characterized by a TONIC PUPIL that occurs in combination with decreased lower extremity reflexes. The affected pupil will respond more briskly to accommodation than to light (light-near dissociation) and is supersensitive to dilute pilocarpine eye drops, which induce pupillary constriction. Pathologic features include degeneration of the ciliary ganglion and postganglionic parasympathetic fibers that innervate the pupillary constrictor muscle. (From Adams et al., Principles of Neurology, 6th ed, p279)Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Journal ArticleLight: That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.Dictionaries, MedicalDictionaries as Topic: Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.Dictionaries, ChemicalTerminology as Topic: The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.Vanuatu: A republic consisting of an island group in Melanesia, in the southwest Pacific Ocean. Its capital is Port-Vila. It was called New Hebrides until 1980. It was discovered in 1606 by the Portuguese, forgotten for 160 years, then visited by Bougainville in 1768 and Captain Cook in 1774. It was under joint British and French administration from 1906 until it became independent in 1980 under the name of Vanuatu. The name is native, meaning our land. (From Webster's New Geographical Dictionary, 1988, p833 & Room, Brewer's Dictionary of Names, 1992, p570)Catalogs, LibraryCatalogs as Topic: Ordered compilations of item descriptions and sufficient information to afford access to them.Catalogs, UnionSeasons: Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Models, Molecular: Models used experimentally or theoretically to study molecular shape, electronic properties, or interactions; includes analogous molecules, computer-generated graphics, and mechanical structures.Cataloging: Activities performed in the preparation of bibliographic records for CATALOGS. It is carried out according to a set of rules and contains information enabling the user to know what is available and where items can be found.Face: The anterior portion of the head that includes the skin, muscles, and structures of the forehead, eyes, nose, mouth, cheeks, and jaw.Algorithms: A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.Depth Perception: Perception of three-dimensionality.Pattern Recognition, Visual: Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs.Form Perception: The sensory discrimination of a pattern shape or outline.Photic Stimulation: Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.Visual Perception: The selecting and organizing of visual stimuli based on the individual's past experience.Photometry: Measurement of the various properties of light.Alloys: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.Manganese: A trace element with atomic symbol Mn, atomic number 25, and atomic weight 54.94. It is concentrated in cell mitochondria, mostly in the pituitary gland, liver, pancreas, kidney, and bone, influences the synthesis of mucopolysaccharides, stimulates hepatic synthesis of cholesterol and fatty acids, and is a cofactor in many enzymes, including arginase and alkaline phosphatase in the liver. (From AMA Drug Evaluations Annual 1992, p2035)Absorbable Implants: Implants constructed of materials designed to be absorbed by the body without producing an immune response. They are usually composed of plastics and are frequently used in orthopedics and orthodontics.Magnesium: A metallic element that has the atomic symbol Mg, atomic number 12, and atomic weight 24.31. It is important for the activity of many enzymes, especially those involved in OXIDATIVE PHOSPHORYLATION.Gold Alloys: Alloys that contain a high percentage of gold. They are used in restorative or prosthetic dentistry.Magnesium Sulfate: A small colorless crystal used as an anticonvulsant, a cathartic, and an electrolyte replenisher in the treatment of pre-eclampsia and eclampsia. It causes direct inhibition of action potentials in myometrial muscle cells. Excitation and contraction are uncoupled, which decreases the frequency and force of contractions. (From AMA Drug Evaluations Annual, 1992, p1083)Rectum: The distal segment of the LARGE INTESTINE, between the SIGMOID COLON and the ANAL CANAL.Internet: A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.Physician-Patient Relations: The interactions between physician and patient.Research Personnel: Those individuals engaged in research.Endoscopy: Procedures of applying ENDOSCOPES for disease diagnosis and treatment. Endoscopy involves passing an optical instrument through a small incision in the skin i.e., percutaneous; or through a natural orifice and along natural body pathways such as the digestive tract; and/or through an incision in the wall of a tubular structure or organ, i.e. transluminal, to examine or perform surgery on the interior parts of the body.Questionnaires: Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.Endoscopy, Gastrointestinal: Endoscopic examination, therapy or surgery of the gastrointestinal tract.
Photometric studies[edit]. Photometric studies (also sometimes referred to as "layouts" or "point by points") are often used to ... The basic SI unit of measurement is the candela (cd), which describes the luminous intensity, all other photometric units are ... The human eye responds differently to light from different parts of the visible spectrum, therefore photometric measurements ... Manufacturers of lighting equipment publish photometric data for their products, which defines the distribution of light ...
Photometric 3D rendering from a single SEM image[edit]. This method requires an SEM image obtained in oblique low angle ... Photometric 3D SEM reconstruction from a four-quadrant detector by "shape from shading"[edit]. This method typically uses a ... 14.2 Photometric 3D SEM reconstruction from a four-quadrant detector by "shape from shading" ... Contrary to photometric methods (next paragraph), photogrammetry calculates absolute heights using triangulation methods. The ...
... has been used as both a photometric and spectral standard star, but both characteristics have been shown to be ... "Photometric Systems". Basic Astronomical Data: Stars and stellar systems: 204. Bibcode:1963bad..book..204J. Krisciunas, K. (May ...
Photometry (optics) Hahn, Lance (1996). "Photometric Units". University of Pennsylvania Medical Center, Department of ...
Photometric Testing. Retrieved 26 March 2017. Kühni, Rolf G. (March 2003). "6. Historical Development of Color Space and Color ...
A photometric catalogue". Revista Mexicana de Astronomia y Astrofisica. 1: 175. Bibcode:1974RMxAA...1..175M. Color indices ... Nicolet, B. (1978). "Catalogue of homogeneous data in the UBV photoelectric photometric system". Astronomy and Astrophysics. 34 ...
Landolt, Arlo U. (2009). "UBVRI Photometric Standard Stars Around the Celestial Equator: Updates and Additions". The ... Bibcode:1991bsc..book.....H. Bessell, Michael S. (2005). "Standard Photometric Systems". Annual Review of Astronomy & ...
II - Photometric results". Astronomy and Astrophysics Supplement Series. 51: 161. Bibcode:1983A&AS...51..161L. Mason, Brian D ... Echevarria, J.; Roth, M.; Warman, J. (1979). "Photometric Study of Trapezium-Type Systems". Revista Mexicana de Astronomia y ...
Groeneveld, Ingrid; Kuiper, Gerard P. (1954). "Photometric studies of asteroids. I". Astrophysical Journal. 120 (120): 200. ...
Wood, X. H. John; Kuiper, Gerard P. (May 1963). "Photometric Studies of Asteroids". Astrophysical Journal: 1279. Bibcode: ...
External link in ,website= (help) T. Gevers; A. Gijsenji; J. van de Weijer & J. Geusebroek (2012). "Pixel-Based Photometric ...
"Automatic Photometric Telescope (APT)". Astronomical Society of Southern Africa. Archived from the original on 18 July 2011. ... This 29.5 inches (75 cm) telescope was originally called the Automatic Photometric Telescope, but has been renamed the Alan ... Wiehahn, Michelle (February 2002). Using the SAAO Automatic Photometric Telescope to Study the Long-Term Lightcurves of ... "The Alan Cousins Telescope - Automatic Photometric Telescope". South African Astronomical Observatory. Archived from the ...
Vizier catalog entry Hauck, B.; Mermilliod, M. (1998). "Uvbybeta photoelectric photometric catalogue". Astronomy and ...
Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico during 2010 gave a lightcurve ... Groeneveld, Ingrid; Kuiper, Gerard P. (September 1954). "Photometric Studies of Asteroids. I". Astrophysical Journal: 200. ...
ISBN 1-85233-751-6. Photometric parallax method Spectroscopic parallax. ...
Weidenschilling, S. J.; Chapman, C. R.; Davis, D. R.; Greenberg, R.; Levy, D. H.; Vail, S. (May 1987). "Photometric geodesy of ... Drummond, J. D.; Weidenschilling, S. J.; Chapman, C. R.; Davis, D. R. (January 1991). "Photometric geodesy of main-belt ... Drummond, J. D.; Weidenschilling, S. J.; Chapman, C. R.; Davis, D. R. (October 1988). "Photometric geodesy of main-belt ... Shevchenko, Vasilij G.; Velichko, Feodor P.; Checha, Vitaly A.; Krugly, Yurij N. (July 2014). "Photometric Study of Selected ...
In November 2012, a rotational lightcurve of Schalén was obtained from photometric observations by astronomers at the Purple ... Li, Bin; Zhao, Haibin; Han, Xianming L.; Klinglesmith, Daniel A., III; Hanowell, Jesse (April 2013). "Photometric Observation ...
Tonry, J. L. (2012). "The Pan-STARRS1 Photometric System". The Astrophysical Journal. 750: 99. arXiv:1203.0297 . Bibcode: ...
Hauck, B.; Mermilliod, M. (1998). "uvbyβ photoelectric photometric catalogue". Astronomy and Astrophysics Supplement Series. ...
Atmospheric Emissions Photometric Imager (AEPI); Space Experiments with Particle Accelerators (SEPAC); Active Cavity Radiometer ...
Several different photometric systems exist. Some such as the UBV or Johnson system are defined against photometric standard ... In 1856 Norman Pogson, noticing that photometric measurements had established first magnitude stars as being about 100 times ... but absolute magnitudes defined for a given filter in a photometric system. ...
Linder, Tyler R.; Sampson, Ryan; Holmes, Robert (January 2013). "Astronomical Research Institute Photometric Results". The ... One month later another photometric observation at the Astronomical Research Observatory (H21) gave a concurring period of ...
The ubvyβ Photoelectric Photometric Catalogue is a compilation of previously published photometric data. Published in 1998, the ... The data release includes positions and magnitudes in a single photometric band for 1.1 billion stars using only Gaia data, ... The catalogue detailed each star's coordinates, proper motions, photometric data, spectral types, and other useful information ... ISBN 0-8061-2751-1. Hauck, B.; Mermilliod, M. (1998). "uvbyβ Photoelectric Photometric Catalogue". Astronomy & Astrophysics ...
P. (1967). "The Photometric Properties of Supernovae". Soviet Astronomy. 11: 63-69. Bibcode:1967SvA....11...63P. Phillips, M. M ... It has been recast to include the evolution in multiple photometric bandpasses, with a significantly shallower slope and as a ... P. (1984). "Photometric classification and basic parameters of type I supernovae". Soviet Astronomy. 28: 658-664. Bibcode: ...
Linder, Tyler R.; Sampson, Ryan; Holmes, Robert (January 2013). "Astronomical Research Institute Photometric Results". The ...
For each photometric system a set of primary standard stars is provided. The first known standardized photometric system is the ... 313-352 [2] The Asiago Database on Photometric Systems Michael S. Bessell (2005), STANDARD PHOTOMETRIC SYSTEMS, Annual Review ... Johnson-Morgan or UBV photometric system (1953). At present, there are more than 200 photometric systems. Photometric systems ... In astronomy, a photometric system is a set of well-defined passbands (or filters), with a known sensitivity to incident ...
A photometric redshift is an estimate for the recession velocity of an astronomical object, such as a galaxy or quasar, without ... The photometric redshift technique has come back into mainstream use since 2000, as a result of large sky surveys conducted in ... As photometric filters are sensitive to a range of wavelengths, and the technique relies on making many assumptions about the ... Photometric redshifts were originally determined by calculating the expected observed data from a known emission spectrum at a ...
The photometric repeatability of white dwarf standards stepped across the field of view is better than 1% r.m.s. and 3% peak-to ... Motivated by the different properties of each of the WFC3/UVIS e2v CCD detectors, UVIS photometric calibrations are now ...
The present invention relates to a photometric device for measuring optical parameters. The invention functions in the ... In a photometric device of the type utilizing a multi-assay plate and an optical fiber for transmitting light from a source in ... 6. A photometric device as claimed in claim 5 wherein said supply means includes a heater and a fan for moving ambient air over ... 2. A photometric device as claimed in claim 1 wherein said rotor means includes a second mirror and a lens interposed said ...
Collect blood into a red-top vacutainer; avoid hemolysis. Allow the sample to clot. Centrifuge the sample; separate the serum from the cells and transfer to a leakproof, labelled tube. Refrigerate or freeze and ship with freezer packs. Plasma is NOT acceptable ...
The photometric liquid analysis apparatus has a rotor for rotating the insert elements to photometric means for photometric ... A photometric liquid analysis apparatus of the centrifugal analysis type uses insert elements having an elongated body, an ... The photometric liquid analysis apparatus has a rotor for rotating the insert elements to photometric means for photometric ... a rotor for rotating the at least one insert element to photometric means for photometric analysis of a liquid in the optical ...
Results for photometric equipment from Allight Sykes, AMETEK PI, AquaSafe and other leading brands. Compare and contact a ... photometric equipment available in Senegal Related terms for "photometric ": photometric measuring equipment , photometric ... photometric analyzer equipment , photometric analysis equipment , photometric test equipment , photometric testing equipment , ... photometric transmitter equipment , photometric detection equipment , photometric sensor equipment Available in Senegal Near ...
Mean weighted values are computed for the photometric data and summarized in tables expected to be reasonably complete for ... and spectroscopic data for all these stars as well as for several bright members of the association with available photometric ...
We introduce photometric stereo endoscopy (PSE), a technique which allows high spatial frequency components of surface ... "Photometric stereo endoscopy." Journal of Biomedical Optics 18 (7): 076017. doi:10.1117/1.JBO.18.7.076017. http://dx.doi.org/ ...
Sign of Gaussian curvature from curve orientation in photometric space ... Sign of Gaussian curvature from curve orientation in photometric space (1998) by E ANGELOPOULOU, L WÖLFF ... 3] pursued neural network implementations of photometric stereo. A neural network replaces an explicit LUT (lookup table) as a ...
JoVE publishes peer-reviewed scientific video protocols to accelerate biological, medical, chemical and physical research. Watch our scientific video articles.
Photometric calibration of NPOI visibilities Author(s): Henrique R. Schmitt; David Mozurkewich; J. Thomas Armstrong; Anders M. ... We use data from the Narrow Angle Trackers to perform a photometric calibration of the visibilities. We describe the method and ...
In this paper, new CCD photometric observations of V508 Oph obtained in 2009 and 2010 at the Xinglong Observatory are presented ...
... photometric explanation free. What is photometric? Meaning of photometric medical term. What does photometric mean? ... Looking for online definition of photometric in the Medical Dictionary? ... Related to photometric: photometric titration photometry. [fo-tom´ĕ-tre] measurement of the intensity of light. ... Conference on the Future of Photometric, Spectrophotometric and Polarimetric.. The future of photometric, spectrophotometric ...
The Standards and Calibration Laboratory provides calibration services for photometric and radiometric measurement instrument ...
This paper proposes a satellite photometric measurement method based on image processing. We calculate the satellite magnitude ... High-orbit satellite magnitude estimation using photometric measurement method Author(s): Shixue Zhang ...
Furthermore, the performance of the iterative algorithm in the presence of nonlinear photometric distortions is compared ... formation which aligns two image profiles even in the presence of photometric distortions can be considered as a basic ... An ECC Based Iterative Algorithm For Photometric Invariant Projective Registration Georgios Evangelidis 1 Emmanouil Psarakis 2 ... An ECC Based Iterative Algorithm For Photometric Invariant Projective Registration. International Journal on Artificial ...
... (DR4) (SDSS DR4) The Sloan Digital Sky Survey will map one-quarter of the entire ... Software for searching the SDSS Photometric Catalog over the web has been inWCSTools since release 3.5.2. scat (ssdss) searches ... fits a WCS to a FITS or IRAF image using the SDSS Photometric Catalog as a reference. ...
Monocular visual odometry (VO) and simultaneous localization and mapping (SLAM) have seen tremendous improvements in accuracy, robustness, and efficiency,
Constraint Optimisation for Robust Image Matching with Inhomogeneous Photometric Variations and Affine Noise ... Wavelet-constrained stereo matching under photometric by Wided Miled, Jean-christophe Pesquet, Michel Parent ...
Method 108C Determination of Arsenic Content in Ore Samples From Nonferrous Smelters (Molybdenum Blue Photometric Procedure) 8- ... Method 108C - Determination of Arsenic Content in Ore Samples From Nonferrous Smelters - Molybdenum Blue Photometric Procedure ...
Manganese Ores and Concentrates - Determination of Phosphorus Content - Extraction- Molybdovanadate Photometric Method ...
ascl:1208.007] Big MACS: Accurate photometric calibration Kelly, P. L.; von der Linden, A.; Applegate, D.; Allen, M.; Allen, S ... Big MACS is a Python program that estimates an accurate photometric calibration from only an input catalog of stellar ...
A photometric system for determining the absorbance ratio, in a sample, of two different wavelength lights. First and second ... US4350441A - Photometric apparatus and method - Google Patents. Photometric apparatus and method Download PDF Info. Publication ... Photometric apparatus and method Cited By (55). * Cited by examiner, † Cited by third party. Publication number. Priority date ... Photometric apparatus and method Patent Citations (15). * Cited by examiner, † Cited by third party. Publication number. ...
Traditional photometric stereo algorithms employ a Lambertian reflectance model with a varying albedo field and involve the ... In this paper, we generalize photometric stereo algorithms to handle all appearances of all objects in a class, in particular ... Appearance Characterization of Linear Lambertian Objects, Generalized Photometric Stereo, and Illumination-Invariant Face ... Appearance Characterization of Linear Lambertian Objects, Generalized Photometric Stereo, and Illumination-Invariant Face ...
  • We use data from the Narrow Angle Trackers to perform a photometric calibration of the visibilities. (spie.org)
  • Big MACS is a Python program that estimates an accurate photometric calibration from only an input catalog of stellar magnitudes and filter transmission functions. (ascl.net)
  • V2491 Cyg (Nova Cyg 2008 #2) now has a two-night BVRI photometric calibration from Sonoita Research Observatory. (aavso.org)
  • These techniques yield galaxy magnitudes with reliable colour calibration (≲0.01-0.02 mag accuracy) that enable us to estimate photometric redshift probability distributions without spectroscopic training samples. (caltech.edu)
  • 0.4 to 2.5 μm) reflectance at multiple angles and determine the photometric properties of materials manufactured by Lucideon and Avian Technologies for potential use as calibration target materials for the Mars 2020 Mastcam-Z instrument. (caltech.edu)
  • The reflectance and photometric data collected and released here enable the use of these color standards for calibration of data from Mastcam-Z and other Mars-2020 rover instruments as well as provide key information for many other imaging and spectroscopy applications that require the calibration of data from multiple lighting or viewing geometries. (caltech.edu)
  • Photometric redshifts for Hyper Suprime-Cam Subaru Strategic Program Data Release 1 Tanaka, Masayuki;Coupon, Jean;Hsieh, Bau-Ching;Mineo, Sogo;Nishizawa, Atsushi J;Speagle, Joshua;Furusawa, Hisanori;Miyazaki, Satoshi;Murayama, Hitoshi 2018-01-01 00:00:00 Abstract Photometric redshifts are a key component of many science objectives in the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). (deepdyve.com)
  • As photometric filters are sensitive to a range of wavelengths, and the technique relies on making many assumptions about the nature of the spectrum at the light-source, errors for these sorts of measurements can range up to δz = 0.5, and are much less reliable than spectroscopic determinations. (wikipedia.org)
  • In the absence of sufficient telescope time to determine a spectroscopic redshift for each object, the technique of photometric redshifts provides a method to determine an at least qualitative characterization of a redshift. (wikipedia.org)
  • Photoelectric observations obtained in the uvby-beta and UBV systems are compiled along with previous photoelectric and spectroscopic data for all these stars as well as for several bright members of the association with available photometric indices. (harvard.edu)
  • Spectroscopic and photometric observations of M supergiants in Carina. (nasa.gov)
  • We test the accuracy of our photometric redshifts using spectroscopic redshifts z_s for ∼5000 galaxies in 27cluster fields with at least five bands of photometry, as well as galaxies in the Cosmic Evolution Survey (COSMOS) field, finding σ((z_p − z_s)/(1 + z_s)) ≈ 0.03 for the most probable redshift z_p. (caltech.edu)
  • The SPLASH collaboration has undertaken an extensive photometric and spectroscopic survey of Andromeda's stellar halo using multiple telescopes and instruments, including the Mosaic camera on the Kitt Peak National Observatory 4 m telescope, the MegaCam camera on the 3.6 meter Canada-France-Hawaii Telescope, and the DEIMOS spectrograph on the 10 meter Keck II Telescope. (stsci.edu)
  • In order to be able to identify individual stars as red giant branch (RGB) stars in Andromeda's stellar halo (rather than Milky Way dwarf stars along our line of sight), I developed a series of spectroscopic and photometric diagnostics that allows us to give each star a probability of being an Andromeda red giant branch star. (stsci.edu)
  • The photometric redshift technique has come back into mainstream use since 2000, as a result of large sky surveys conducted in the late 1990s and 2000s which have detected a large number of faint high-redshift objects, and telescope time limitations mean that only a small fraction of these can be observed by spectroscopy. (wikipedia.org)
  • 1 Introduction In the era of wide and deep imaging surveys, the photometric redshift technique (hereafter photo-z, see Hildebrandt et al. (deepdyve.com)
  • The pulsar and the close companion star were not fully resolved in the 20-cm telescope: consequently photometry was performed on the combination with the pulsar periodically contribute to the photometric flux. (thefreedictionary.com)
  • We also describe our photometric program, and in particular our "Superstar technique" for differential photometry which, instead of relying on a handful of comparison stars, uses the photon flux in the entire star field in the CCD image to derive the program star magnitude. (osti.gov)
  • Precision photometry can still be achieved by creating a photometric aperture that is large enough to encompass all excess charge and the TESS bright limit is anticipated to be I_C=4. (nasa.gov)
  • The photometric repeatability of white dwarf standards stepped across the field of view is better than 1% r.m.s. and 3% peak-to-peak over the full wavelength range of the detector (ISR 2016-04 and 2016-05 ). (stsci.edu)
  • Tetrabutyltin was used to verify the gas chromatography (with flame photometric detector) performance of the analyses. (docme.ru)
  • The photometric apparatus may further include radiation directing devices interposed between the radiation output port and the plurality of sample chambers for simultaneously directing radiation emanating from the output port into each of the sample chambers. (google.com)
  • The present invention relates to a photometric device for measuring optical parameters. (google.com)
  • This invention relates generally to photometric devices and, in particular, to a high speed spectrophotometer having a substantially Lambertian source of radiation for uniformly illuminating a sample plate having a plurality of sample-containing wells. (google.com)
  • When analyzing galaxy clustering in multi-band imaging surveys, there is a trade-off between selecting the largest galaxy samples (to minimize the shot noise) and selecting samples with the best photometric redshift (photo-z) precision, which generally include only a small subset of galaxies. (arxiv.org)
  • The photometric precision for a 10th magnitude star is estimated to be about 200 ppm, so TESS will be sensitive to super-Earths around bright stars. (nasa.gov)
  • For fainter stars, such as a 16th magnitude star, the photometric precision drops to about 1%, which is sufficient for many astrophysical studies such as supernovae and stellar variability. (nasa.gov)
  • To obtain the highest precision and stability over time, the Automated Photometric Technology relies on the Quality and Precision of the Pipetting System and the Photometric bench. (pro-analytics.net)
  • N. M. Farrag , Simple photometric assay of nicotine in tobacco, Egypt. (who.int)
  • Simple photometric assay procedure of the volatile tobacco alkaloids as nicotine is presented depending on the preparation of copper dithiocarbamate complex of nicotine after being reduced to a secondary amine derivative using Zn/HCl. (who.int)
  • Study determined if 2MASS photometric data are reliable for luminosity classification using JHK plots of Reid and Hawley (2001). (bsu.edu)
  • A non-dilution photometric technique is more precise because blood is not measures into a diluting fluid. (gulpmatrix.com)
  • A significant and growing portion of systematic error on a number of fundamental parameters in astrophysics and cosmology is due to uncertainties from absolute photometric and flux standards. (arxiv.org)
  • Furthermore, the performance of the iterative algorithm in the presence of nonlinear photometric distortions is compared against the leading Lucas-Kanade algorithm and its simultaneous inverse compositional variant with the help of a series of experiments involving strong or weak geometric deformations, ideal and noisy conditions and even over-modelling of the warping process. (inria.fr)
  • Although under ideal conditions the proposed al- gorithm and simultaneous inverse compositional algorithm exhibit a similar performance and both outperform the Lucas-Kanade algorithm, under noisy conditions the proposed algorithm outperforms the other algorithms in convergence speed and accuracy, and exhibits robustness against photometric distortions. (inria.fr)
  • For the work in the visible spectral analysis both in photometric and spectrophotometric analyzes a specific color reaction is required for each species. (thefreedictionary.com)
  • On an analytical device for photometric analysis of chemistry and/or fluid samples comprising a rotatable disk-like body, a plurality of receptacles for fluid samples and optics for guiding light beams through the receptacles are arranged. (patentgenius.com)
  • Simple and fast photometric flow injection analysis system was developed for sensing of β-1,3-glucan from medicinal mushroom Ganoderma lucidum during fermentation. (nih.gov)
  • These results can be used to help guide galaxy sample selection for clustering analysis in ongoing and future photometric surveys. (arxiv.org)
  • Recombinant Therapeutic Proteins development and production operations require reliable and accurate biochemistry analyzers to characterize the cell culture process and maximize results through photometric analysis. (pro-analytics.net)
  • An advanced, more accurate technology based on automated photometric analysis is being rapidly adopted by many leading organizations. (pro-analytics.net)
  • Utilizing the RX Series Instruments for photometric analysis is very easy. (pro-analytics.net)
  • Here, we design a deep neural network trained on stars in common between Gaia and APOGEE that determines spectro-photometric distances to APOGEE stars, while including a flexible model to calibrate parallax zero-point biases in Gaia DR2. (harvard.edu)
  • 5. List and compare the principles/applications of different photometric equipment. (docplayer.net)
  • Each cuvette content is automatically mixed and incubated and the resulting reactive color is measured inside the photometric chamber. (pro-analytics.net)
  • Photometric accuracy is limited to ~5% by the uncertainty in the (unmeasured) atmospheric extinction. (gemini.edu)
  • This study investigates the question whether photometric laws are sufficient to make a given depth order of transparent layers more likely to be perceived. (arvojournals.org)
  • Illuminating a large space takes more than just guesswork, and photometric lighting design ensures that a set of fixtures provides even, sufficient illumination across an entire property. (ledspot.com)
  • A photometric redshift is an estimate for the recession velocity of an astronomical object, such as a galaxy or quasar, without measuring its spectrum. (wikipedia.org)
  • The ability of an algorithm to accurately estimate the parameters of the geometric trans- formation which aligns two image profiles even in the presence of photometric distortions can be considered as a basic requirement in many computer vision applications. (inria.fr)
  • He recalled that photometric testing had shown the airfield lighting standards at UK airports are currently "pretty high", though when photometric testing was first introduced, the brilliance of one British airport's runway lights had fallen to just 20% of the expected standard. (thefreedictionary.com)
  • Photometric standards will be key in discovering just how far it can go, as we build a world where CO2 detection can be done with energy efficiency in mind. (optroniclabs.com)
  • Together, photometric standards and IES files make detailed photometric plans possible. (ledspot.com)
  • 2. A photometric device as claimed in claim 1 wherein said rotor means includes a second mirror and a lens interposed said first mirror and said second mirror. (google.com)
  • 3. A photometric device as claimed in claim 2 wherein said first and second mirrors and said lens are mechanically linked and move in unison. (google.com)
  • 6. A photometric device as claimed in claim 5 wherein said supply means includes a heater and a fan for moving ambient air over said heater to provide said stream of heated air and wherein said baffle includes central apertures and peripheral apertures, said central apertures being larger than said peripheral apertures. (google.com)
  • This factor was chosen because it makes the modern photometric scale correspond more or less to the ancient rankings of the stars visible to the naked eye. (thefreedictionary.com)
  • Photometric Variability In Kepler Target Stars. (washington.edu)
  • Photometric variability in Kepler target stars: the Sun among stars - a first look. (nature.com)
  • In this paper we compare different ways of representing the global photometric changes in image intensities caused by changes in illumination and viewpoint, aiming at a balance between goodness-of-fit and low complexity. (semanticscholar.org)
  • Chitosan-guar gum-silver nanoparticles hybrid matrix with immobilized enzymes for fabrication of beta-glucan and glucose sensing photometric flow i. (nih.gov)