Bibliografie tematiche / Bichromatic measurement

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Letteratura scientifica selezionata sul tema "Bichromatic measurement"

Autore: Grafiati

Pubblicato: 21 dicembre 2024

Ultima modifica: 31 luglio 2025

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Articoli di riviste sul tema "Bichromatic measurement"

Hallbach, Jɒrgen, Georg E. Hoffmann, and Walter G. Guder. "Overestimation of albumin in heparinized plasma." Clinical Chemistry 37, no. 4 (1991): 566–68. http://dx.doi.org/10.1093/clinchem/37.4.566.

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Abstract Monochromatic measurement of albumin by the bromcresol green method leads to overestimation of albumin in the presence of heparin. The interference seems to be caused by fibrinogen, which, in the presence of heparin, produces an almost constant increase of the measuring signal over the whole range of suitable wavelengths (550 to 700 nm). The albumin overestimation can be eliminated by using a bichromatic modification. An application of this procedure for the automated analyzer RAXT, RA-1000 (Bayer Diagnostik, Technicon) is presented. We recommend using only bichromatic methods for alb

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Williams, M. R., F. Chi, M. T. Cashen, and H. Metcalf. "Measurement of the bichromatic optical force on Rb atoms." Physical Review A 60, no. 3 (1999): R1763—R1766. http://dx.doi.org/10.1103/physreva.60.r1763.

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Li, Wei, Xudong Yu, and Jing Zhang. "Measurement of the squeezed vacuum state by a bichromatic local oscillator." Optics Letters 40, no. 22 (2015): 5299. http://dx.doi.org/10.1364/ol.40.005299.

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Baker, J., P. Metcalf, M. Tatnell, M. Lever, and R. Johnson. "Quality assessment of determinations of serum fructosamine in 33 clinical chemistry laboratories." Clinical Chemistry 32, no. 12 (1986): 2133–36. http://dx.doi.org/10.1093/clinchem/32.12.2133.

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Abstract We investigated the analytical performance of fructosamine measurement in 33 routine clinical chemistry laboratories. We prepared 12 human control sera spanning a range of nondiabetic and diabetic fructosamine concentrations and assigned target values by using commercial reagents and a Cobas Bio centrifugal analyzer. Each control serum was analyzed by participating laboratories on two separate occasions. Averaged results were compared with target values, and systematic error was determined from slope and intercept regression coefficients. Overall, we found no significant (p greater th

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Thiermann, V., and H. Grassl. "The measurement of turbulent surface-layer fluxes by use of bichromatic scintillation." Boundary-Layer Meteorology 58, no. 4 (1992): 367–89. http://dx.doi.org/10.1007/bf00120238.

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Sampson, M., M. Ruddel, and R. J. Elin. "Effects of specimen turbidity and glycerol concentration on nine enzymatic methods for triglyceride determination." Clinical Chemistry 40, no. 2 (1994): 221–26. http://dx.doi.org/10.1093/clinchem/40.2.221.

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Abstract We compared the effects of specimen turbidity and glycerol concentration on nine enzymatic methods for triglyceride measurement. We assayed 51 specimens with triglyceride concentrations of 0.85-8.21 mmol/L (75-727 mg/dL) and turbidity at 420 nm equivalent to &gt; or = 0.1 mmol/L (8.8 mg/dL) triglyceride (measured as part of our comparison method). The data were analyzed by multiple regression, which gave coefficients for the effects of glycerol concentration and the change in turbidity during the reaction. The effects of specimen turbidity and glycerol concentration were method-de

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Barbour, H. M., and W. Davidson. "Studies on measurement of plasma magnesium: application of the Magon dye method to the "Monarch" centrifugal analyzer." Clinical Chemistry 34, no. 10 (1988): 2103–5. http://dx.doi.org/10.1093/clinchem/34.10.2103.

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Abstract The "Magnesium Liquid Stable Reagent Set" from Medical Analysis Systems, Inc., is evaluated. The method, which involves Magon dye binding and bichromatic absorbance measurements, was used in a Monarch centrifugal analyzer. Results were compared with those by atomic absorption spectrometry. The calibration curve for the Magon method is linear to 2.5 mmol/L, with a 2-microL sample volume. Analytical recovery of magnesium added to human plasma ranged from 95 to 102%. The working reagent is stable for at least five days at 15 degrees C. At concentrations of 0.54 and 1.20 mmol/L, the respe

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Diehl, Brett, Alberto Castro, Lars Jaquemetton, and Darren Beckett. "Thermal Calibration of Ratiometric, On-Axis Melt Pool Monitoring Photodetector System Using Tungsten Strip Lamp." Materials Evaluation 80, no. 4 (2022): 64–73. http://dx.doi.org/10.32548/2022.me-04271.

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In situ melt pool monitoring is a set of technologies widely deployed on industrial, metals-based laser powder bed fusion (LPBF) additive manufacturing (AM) systems. This study investigates the use of a calibrated tungsten ribbon lamp as a reference standard to calibrate a photodetector based, on-axis melt pool monitoring system. Calibration demonstrates two functions: (a) enable a reference for measuring and ensuring system repeatability, and (b) enable reference to physical temperature values based on the measured photodetector signals. The second function is explored in this paper. A regres

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Yang, Lei, Bao Wang, and Hao Xiong. "Generation of Second-Order Sideband through Nonlinear Magnetostrictive Interaction." Photonics 10, no. 8 (2023): 886. http://dx.doi.org/10.3390/photonics10080886.

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Nonlinear interaction between the magnon mode and the mechanical mode in a magnomechanical system is treated analytically where the magnon mode is coherently driven by a bichromatic microwave drive field consisting of a strong pumping field and a weak probe field and that works within a perturbative regime. Using experimentally achievable parameters, we show that the magnonic second-order sideband is generated and can be considerably enhanced by increasing the power of the pumping field. The suppression of the magnonic second-order sideband generation at the resonance point is discussed. Furth

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Jegou, Loïc, Joel Lachambre, Nicolas Tardif, et al. "Bichromatic melt pool thermal measurement based on a Red, Green, and Blue camera: Application to additive manufacturing processes." Optics & Laser Technology 167 (December 2023): 109799. http://dx.doi.org/10.1016/j.optlastec.2023.109799.

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Più fonti

Tesi sul tema "Bichromatic measurement"

Jegou, Loïc. "Identification par radioscopie X et thermographie in-situ du bain de fusion lors de la fabrication additive d’une pièce métallique." Electronic Thesis or Diss., Lyon, INSA, 2024. http://www.theses.fr/2024ISAL0080.

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Les promesses des procédés de fabrication additive de pièces métalliques sont nombreuses : concevoir des géométries complexes, maîtriser les propriétés mécaniques, réduire la quantité de matière première nécessaire... Pourtant, les technologies additives par laser ont encore aujourd'hui bien du mal à s'imposer dans le domaine industriel. La stabilité du bain de fusion, la zone fondue par le laser où se déroule l’apport de matière, est un élément critique de la maîtrise de ces procédés. Les travaux de thèse ont porté sur la surveillance du bain de deux façons différentes. D’abord à l’aide d’une

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Capitoli di libri sul tema "Bichromatic measurement"

Ordóñez, Andrés, Piero Decleva, and David Ayuso. "Symmetry-Protected Chiral Sensitivity in Photoionization with Bichromatic Fields." In Springer Proceedings in Physics. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-47938-0_12.

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AbstractWe consider photo-ionization of randomly oriented chiral molecules with bichromatic fields of frequencies $$\omega $$ ω and $$2\omega $$ 2 ω linearly polarized perpendicular to each other. Our symmetry analysis reveals a new type of enantio-sensitive signal in the photoelectron angular distribution which does not change its sign upon reversal of the two-color relative phase, i.e. upon reversal of the instantaneous ellipticity of the field. We provide a numerical estimate of the effect in methyloxirane, and propose an experimental setup for its measurement.

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Atti di convegni sul tema "Bichromatic measurement"

Guidry, Melissa A., Eran Lustig, Daniil M. Lukin, Shanhui Fan, and Jelena Vučković. "Multimode squeezed vacuum of Kerr primary combs in optical microresonators." In CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.ff2h.3.

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We measure the squeezing structure of the below-threshold modes of a primary comb in an optical Kerr microresonator. Through two-photon autocorrelation measurements and balanced homodyne detection, we observe bichromatic gain and a multimode structure.

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Beschastnyy, M. A. "THE POSSIBILITY OF INCREAING THE ACCURACY OF TEMPERATURE CONTROL IN TRANSPORT AUTOMATISATION AND CONTROL SYSTEMS." In Intelligent transport systems. Russian University of Transport, 2024. http://dx.doi.org/10.30932/9785002446094-2024-531-536.

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The article discusses the possibility of using a numerical bichromatic method of non-contact temperature measurement to improve accuracy of thermal control of objects in transport. The algorithm for using the method is described, and a comparative analysis with traditional bichromatic method is carried out.

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Chakmakjian, Stephen H., Karl Koch, C. R. Stroud, and Lloyd W. Hillman. "Resonance fluorescence with modulated excitation." In OSA Annual Meeting. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/oam.1987.wf8.

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We report our results on measurement of the total fluorescent power radiated by two-level atoms excited by a 100% amplitude modulated or bichromatic laser field. For the case of single-frequency excitation, it is well known that the total fluorescent power monotonically saturates as the intensity of the field is increased. This occurs because the inversion of the atoms approaches zero at high field strengths. In contrast, when the field is bichromatic the total fluorescent power displays resonant peaks as the strength of the driving field is increased. This occurs because there is enhanced abs

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Campbell, Melanie C. W., and Pierre Simonet. "Effects of chromatic aberration on Vernier and stereo acuities." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.wr4.

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Amounts of transverse chromatic aberration (TCA) and chromostereopsis were measured in normal view for nine subjects at two levels of illumination. Vernier acuities associated with the TCA measurements for a split bichromatic target were worse than those associated with measurements using monochromatic targets at both low and high illuminance. The reduction in vernier acuity can be shown to be due to chromatic aberration because the effect disappears when a Maxwellian view system is aligned with the achromatic axis of the eye. Thus for vernier alignments of bichromatic targets, chromatic aberr

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Lawandy, N. M. "Bichromatic emission in a homogeneously broadened ring dye laser: evidence of a new mode structure hierarchy." In International Laser Science Conference. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/ils.1986.tuf3.

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We present experimental measurements on a high-Q rhodamine 6G ring dye laser which was found to exhibit bichromatic emission with splittings of the order of 15–80 Å while operating in the range of 2–6 times above threshold in the bidirectional mode. Experiments were performed with the insertion of a low loss Faraday isolator (loss < 1%) in order to examine the effects of saturation gratings on the bichromatic emission. The results showed that even though the intracavity power went up, owing to the elimination of spatial hole burning, the bichromatic emission was completely eliminated in the

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Navello, L., J. Lebedinsky, J. P. Offret, et al. "Short wavelengths active bichromatic pulsed pyrometer for solids and liquids designed for measurements in harsh environments." In SPIE Optical Metrology, edited by Peter Lehmann, Wolfgang Osten, and Armando Albertazzi Gonçalves. SPIE, 2015. http://dx.doi.org/10.1117/12.2184643.

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Molin, Bernard, Fabien Remy, Yanan Liu, and Marie-Christine Rouault. "Experimental and Numerical Study of the Slow-Drift Motion of a Rectangular Barge Moored at an Inclined Beach." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20623.

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An experimental campaign is reported on the slow-drift motion of a rectangular barge moored in irregular beam seas. The 24 m long false bottom of the basin is raised and inclined at a slope of 5%, from 1.05 m below the free surface to 0.15 m above. The barge is moored successively at 4 different locations, in water-depths ranging from 54 to 21 cm. The measured slow-drift component of the sway motion is compared with state-of-the-art calculations based on Newman approximation. At 54 cm depth good agreement is obtained between calculations and measurements. At 21 cm depth the Newman calculation

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DE PEINDRAY D’AMBELLE, Lilou. "Thermal multi-sensor instrumentation for the enhancement of a directed energy deposition process." In Material Forming. Materials Research Forum LLC, 2024. http://dx.doi.org/10.21741/9781644903131-8.

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Abstract. Directed energy deposition (DED) is an additive manufacturing process with growing industrial interests. Nonetheless, its industrialization will not be possible until it is fully mature. Such maturity lies in the upstream research to optimize and control it. In DED, process parameters, physical quantities and parts properties are interrelated which makes it a complex process. To have a better understanding of these relations, the experimental approach of instrumentation has been chosen. Multi-sensor method has been implemented for its more extensive possibilities in comparison to sin

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