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Journal articles on the topic 'Quant-band'

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1

Farhat, M., J. Munisami, M. Abdul-Niby, and M. Nahas. "A Compact Quint-Band Bandpass Filter Based on Stub-Loaded Resonators." Engineering, Technology & Applied Science Research 7, no. 3 (2017): 1694–98. http://dx.doi.org/10.48084/etasr.1208.

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This paper presents a planar quant-band bandpass filter with a high out-of-band rejection. The filter is based on inter-coupled stub-loaded resonators, where pairs of resonators are electromagnetically coupled to each other and the feed lines. This results in excitation of passbands, where the first and the third passbands are generated by λ/4 stub-loaded resonators. The second and the fifth passbands are excited by λ/2 stub-loaded resonators. And the fourth passband is generated by λ/2 resonators. The proposed technique provides sufficient degree of freedom to control the center frequency and
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2

Farhat, M., J. Munisami, M. Abdul-Niby, and M. Nahas. "A Compact Quint-Band Bandpass Filter Based on Stub-Loaded Resonators." Engineering, Technology & Applied Science Research 7, no. 3 (2017): 1694–98. https://doi.org/10.5281/zenodo.809499.

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This paper presents a planar quant-band bandpass filter with a high out-of-band rejection. The filter is based on inter-coupled stub-loaded resonators, where pairs of resonators are electromagnetically coupled to each other and the feed lines. This results in excitation of passbands, where the first and the third passbands are generated by λ/4 stub-loaded resonators. The second and the fifth passbands are excited by λ/2 stub-loaded resonators. And the fourth passband is generated by λ/2 resonators. The proposed technique provides sufficient degree of freedom to control the center frequency and
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3

Hashemi, Robab, Hoimonti Rozario, Amr Ibrahim та Adriana Predoi-Cross. "Line shape study of the carbon dioxide laser band Ι". Canadian Journal of Physics 91, № 11 (2013): 924–36. http://dx.doi.org/10.1139/cjp-2013-0051.

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The spectral line parameters of carbon dioxide have been measured in the laser band I (00011 ← 10001) centred at 10.4 μm. The spectra were recorded at room temperature using the spectroscopic instrumentation at the far-infrared beamline, Canadian Light Source, Saskatoon, Sask. The spectral line intensities, air- and self- broadened Lorentz half widths, and pressure-induced shift coefficients were retrieved for 48 spectral lines using a multispectrum fit technique (Benner et al. J. Quant. Spectrosc. Radiat. Transfer, 53, 705 (1995)). Line parameters were retrieved using the Voigt and speed-depe
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4

Golebiowski, D., M. Herman та O. Lyulin. "16O12C17O and 18O12C17O spectroscopy in the 1.2–1.25 μm region". Canadian Journal of Physics 91, № 11 (2013): 963–65. http://dx.doi.org/10.1139/cjp-2012-0482.

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Near-infrared absorption spectra of a carbon dioxide sample enriched with oxygen-17 were recorded in the spectral range 1.2–1.25 μm. A high-resolution continuous scan Fourier transform interferometer fitted with a femto OPO/Idler laser source and cavity-enhanced absorption was used. The optimal root mean squared noise equivalent absorption was 1.2 × 10−10 cm−1Hz–1/2 per spectral element, corresponding to αmin = 10−8 cm−1. Two cold bands in 17O12C18O and one hot band in 16O12C17O were newly identified and rotationally analyzed. More lines than previously published (Lyulin et al. J. Quant. Spect
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5

Domysławska, Jolanta, Szymon Wójtewicz, Katarzyna Bielska, Sławomir Bilicki, Roman Ciuryło, and Daniel Lisak. "Line mixing in the oxygen B band head." Journal of Chemical Physics 156, no. 8 (2022): 084301. http://dx.doi.org/10.1063/5.0079158.

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We present the results of direct measurements of the line mixing parameters for two pairs of overlapping transitions at the band head of the oxygen B band. Measurements were performed with the frequency-stabilized cavity ring-down spectrometer assisted by an optical frequency comb. The recorded spectra were analyzed with line profiles comprising speed dependence, Dicke narrowing, and line mixing. Incorporation of the line mixing into the model eliminated previous discrepancies for pressure shift and their speed dependence coefficients. First-order line mixing was determined directly from the l
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6

Predoi-Cross, Adriana, Robab Hashemi, V. Malathy Devi, Hossein Naseri та Mary Ann H. Smith. "Analysis of Fourier transform spectra of N2O in the ν3 band for atmospheric composition retrievals". Canadian Journal of Physics 96, № 4 (2018): 454–64. http://dx.doi.org/10.1139/cjp-2017-0303.

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We report measurement results for line positions, intensities, half-width, and pressure-induced shift coefficients and line mixing coefficients for N2O broadened by air in the ν3 band. The high signal-to-noise ratio spectra have been recorded at high resolution using the McMath–Pierce Fourier transform spectrometer formerly located at the National Solar Observatory on Kitt Peak, Ariz., USA. The spectra were analyzed using a multispectrum nonlinear least-squares curve-fitting technique employing the speed-dependent Voigt profile with a Rosenkranz (weak) line mixing component. The speed dependen
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7

Khoa, Doan Quoc, Chu Van Lanh, Phan Xuan Sanh, et al. "An Exactly Soluble Equation for the Stationary Probability Distribution in a Nonlinear System under the Influence of Two-telegraph Noise: Application to the Noise Reduction in a Raman Ring Laser." Communications in Physics 26, no. 1 (2016): 75. http://dx.doi.org/10.15625/0868-3166/26/1/8352.

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In this paper, we will consider a model of nonlinear system with random telegraph noises and a Raman ring laser by modeling the laser pump light by a pregaussian process and find an exactly soluble equations for the stationary probability distribution of fluctuations in this nonlinear system under the influence of two-telegraph noise. In consequence, we will obtain the so-called noise reduction in this system: the Stokes output of this laser tends to the stabilize under the influence of the broad-band two-telegraph pregaussian pump and compare this results with that obtained in our previous pa
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8

Chen, S. K., H. S. Liu, and C. S. Wu. "Quantitative Analysis of Sphene (CaTiOSiO4) and Wollastonite (CaSiO3) Crystallizations in Annealed Ceramic Frits by FT-IR Absorption Spectroscopy." Applied Spectroscopy 47, no. 7 (1993): 965–72. http://dx.doi.org/10.1366/0003702934415363.

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Results of this study have shown the feasibility of FT-IR absorption spectra (between 500 and 700 cm−1) for the quantitative determination of the nucleation and crystal growths of sphene (CaTiOSiO4) and wollastonite (β-CaSiO3) in two separate typical ceramic frits that have been annealed between 800 and 1000°C. Synthetic sphene ceramics and natural wollastonite, both of high purity and excellent crystallinity, serve as standard materials for calibration by the classical least-squares method (Basic Quant), employing the peaks of a sharp band at 561–566 cm−1 assigned to the SiO4 vibration and th
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9

Charczun, Dominik Andrzej, Grzegorz Kowzan, Agata Cygan, Ryszard S. Trawiński, Daniel Lisak, and Piotr Masłowski. "Broadband and high resolution measurements of cavity loss and dispersion." Photonics Letters of Poland 10, no. 2 (2018): 48. http://dx.doi.org/10.4302/plp.v10i2.820.

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We present a method for broadband measurements of dispersion and loss of an optical cavity. We employ an optical frequency comb directly coupled into a cavity to scan the cavity modes and retrieve their shapes and positions. The measurement data is acquired using instrumental-line-shape-free Fourier transform spectrometry. This method can be developed into a powerful tool for optical loss and dispersion measurements for broadband characterization of optical elements as well as absorption and dispersion spectroscopy. Full Text: PDF ReferencesTh. Udem, R. Holzwarth, T.W. Hänsch, "Optical Frequen
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10

Pallett, Scott JC, Michael Rayment, Paul Randell, Gary W. Davies, and Luke SP Moore. "4 Early identification of high-risk individuals for combination monoclonal antibody therapy is feasible by SARS-CoV-2 anti-spike antibody specific lateral flow assay." BMJ Military Health 168, no. 5 (2022): e1.4-e1. http://dx.doi.org/10.1136/bmjmilitary-2022-rsmabstracts.4.

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BackgroundCombination monoclonal antibody therapy has recently been approved for prevention and treatment of severe COVID-19 infection in the UK. Available data suggests benefit is limited to those yet to mount an effective immune response from natural infection or vaccination, but concern exists around ability to make timely assessment of immune status of community-based patients.MethodsHealthcare workers were invited to undergo paired laboratory-based and rapid point-of- care (POC) lateral flow anti-spike antibody testing. Three commercial POC tests were selected to represent currently avail
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11

Malathy Devi, V., D. Chris Benner, M. A. H. Smith та ін. "Erratum to “Spectral line parameters including temperature dependences of self- and air-broadening in the 2←0 band of CO at 2.3 μm” [J Quant Spectrosc Radiat Transfer 2012;113:1013–33]". Journal of Quantitative Spectroscopy and Radiative Transfer 116 (лютий 2013): 199–200. http://dx.doi.org/10.1016/j.jqsrt.2012.11.020.

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12

Alkadrou, A., M. T. Bourgeois, M. Rotger, V. Boudon та J. Vander Auwera. "Corrigendum to “Global frequency and intensity analysis of the ν10/ν7/ν4/ν12 band system of 12C2H4 at 10 μm using the D2h top data system” [J. Quant. Spectrosc. Radiat. Transf. 182 (2016) 158–171]". Journal of Quantitative Spectroscopy and Radiative Transfer 190 (березень 2017): 88. http://dx.doi.org/10.1016/j.jqsrt.2017.01.007.

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13

Levine, R. J., P. D. Chantler, R. W. Kensler, and J. L. Woodhead. "Effects of phosphorylation by myosin light chain kinase on the structure of Limulus thick filaments." Journal of Cell Biology 113, no. 3 (1991): 563–72. http://dx.doi.org/10.1083/jcb.113.3.563.

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The results discussed in the preceding paper (Levine, R. J. C., J. L. Woodhead, and H. A. King. 1991. J. Cell Biol. 113:563-572.) indicate that A-band shortening in Limulus muscle is a thick filament response to activation that occurs largely by fragmentation of filament ends. To assess the effect of biochemical changes directly associated with activation on the length and structure of thick filaments from Limulus telson muscle, a dually regulated tissue (Lehman, W., J. Kendrick-Jones, and A. G. Szent Gyorgyi. 1973. Cold Spring Harbor Symp. Quant. Biol. 37:319-330.) we have examined the thick
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14

Michalska, Maria, Paweł Grześ, and Jacek Swiderski. "High power, 100 W-class, thulium-doped all-fiber lasers." Photonics Letters of Poland 11, no. 4 (2019): 109. http://dx.doi.org/10.4302/plp.v11i4.953.

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In this work, sub-kilowatt, compact thulium-doped fiber laser systems, operating at a wavelength of 1940 nm, have been presented. The continuous-wave laser power generated out of a single oscillator was 90 W with a slope efficiency of 56.7%. Applying a master oscillator – power amplifier configuration, an output power of 120.5 W with a slope efficiency of 58.2% was demonstrated. These are the first results of the works aimed at developing kW-class “eye-safe” laser systems in Poland. Full Text: PDF ReferencesZ. Liu, et al., "Implementing termination analysis on quantum programming", Sci. China
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15

Ragiń, T., A. Baranowska, M. Sołtys, et al. "Up-conversion luminescence in low phonon heavy metal oxide glass co-doped with Er3+/Ho3+." Photonics Letters of Poland 10, no. 1 (2018): 2. http://dx.doi.org/10.4302/plp.v10i1.802.

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In this paper, heavy metal oxide glasses co-doped with erbium and holmium ions have been synthesized. Glass composition, based on the bismuth and germanium oxides, has been selected in terms of high thermal stability (delta T = 125 °C), high refractive index (n = 2.19) and low maximum phonon energy (hvmax = 724 cm-1). Up-conversion luminescence spectra under the 980 nm laser diode excitation have been observed as a result of radiative transitions within the quantum energy level structures of Er3+ and Ho3+ ions. Optimization of rare earth ions content has been conducted, the highest emission in
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16

Azzam, Sausan, Jenniffer Gamble, Michael Decker, Xiaolin Li, Yeritza Hernandez, and Kingman P. Strohl. "Locating Apolipoprotein A2 Protein in the Central Nervous System." FASEB Journal 31, S1 (2017). http://dx.doi.org/10.1096/fasebj.31.1_supplement.653.7.

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ObjectivesApolipoprotein A2 (Apoa2) gene expression in the brain is deterministic of apnea in the C57BL/6J sleep apnea mouse model, with both alleles needed for brain (but not liver) mRNA expression, and post‐hypoxic pauses (Gillombardo et al. 2016). Functional Apoa2 gene products, well described in the liver, are not reported as present in CNS. The purpose was to determine if Apoa2 protein was in the brain, and to validate two customized Apoa2 antibodies.Methods12–16 week old B6‐WT (+/+) and Apoa2 KO (−/−) mice were sacrificed for the tissue used in this study. Two Apoa2 monoclonal antibodies
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