Academic literature on the topic 'Streuli, Beat'

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Journal articles on the topic "Streuli, Beat"

1

Mahajan, Virendra N. "Strehl ratio of a Gaussian beam." Journal of the Optical Society of America A 22, no. 9 (September 1, 2005): 1824. http://dx.doi.org/10.1364/josaa.22.001824.

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Pavlović, Goran, Mile Savković, Goran Marković, Nebojša Zdravković, and Jelena Stanojković. "Optimal design of welded I-beam of slewing pillar jib crane." IMK-14 - Istrazivanje i razvoj 24, no. 3 (2018): 75–82. http://dx.doi.org/10.5937/imk1803075p.

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Phillips, Ronald L. "Strehl ratio and scintillation theory for uplink Gaussian-beam waves: beam wander effects." Optical Engineering 45, no. 7 (July 1, 2006): 076001. http://dx.doi.org/10.1117/1.2219470.

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Padejski, Nada, and Mikloš Biro. "FAKTORI VULNERABILNOSTI ZA POSTTRAUMATSKI STRESNI POREMEĆAJ KOD ŽRTAVA PARTNERSKOG ZLOSTAVLJANJA." Primenjena psihologija 7, no. 1 (March 29, 2014): 63. http://dx.doi.org/10.19090/pp.2014.1.63-85.

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Rad istražuje odnos između pretraumatskih, peritraumatskih i posttraumatskih faktora i posttraumatskih psihopatoloških posledica, u cilju nalaženja faktora vulnerabilnosti za razvoj posttraumatskog stresnog poremećaja kod žrtava partnerskog zlostavljanja. Na uzorku od 41 ispitanice, starosti od 18 do 63 godine, koje su zbog izloženosti partnerskom zlostavljanju tokom ispitivanja boravile u skloništu za žrtve nasilja, primenjeni su instrumenti: Upitnik opštih podataka, Upitnik za procenu trauma u detinjstvu, inventar ličnosti Velikih pet plus dva, Upitnik za procenu nasilja nad ženama, Upitnik za procenu strategija prevladavanja (The Ways of Coping Questionnaire – Revised, WC-R), Skala za procenu ruminativnih odgovora (Ruminative Response Scale, RRS), Inventar za procenu supresije „Beli medved” (The ‘White Bear’ Suppression Inventory, WBSI), Upitnik za procenu interpersonalne podrške (The Interpersonal Support Evaluation List, ISEL) i PTSP ček lista – verzija za civile (The PTSD Checklist – Civilian version, PCL-C). Serijom hijerarhijskih regresionih analiza ispitana je struktura predikcije simptoma posttraumatskog stresnog poremećaja na osnovu pretraumatskih, peritraumatskih i posttraumatskih faktora. Rezultati ukazuju da dimenzija ličnosti Neuroticizam i ruminativni stil, kao kognitivna strategija prevladavanja, predstavljaju faktore koji utiču na razvoj simptoma posttraumatskog stresnog poremećaja nakon izloženosti partnerskom zlostavljanju. Nalazi istraživanja pokreću pitanja o međusobnom uticaju izdvojenih faktora vulnerabilnosti.
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Zhang, Xiang. "Research on Thermal-Effect and Phase Properties of a Q-Switched Laser Using KTP Frequency-Doubling Crystal." Advanced Materials Research 282-283 (July 2011): 505–8. http://dx.doi.org/10.4028/www.scientific.net/amr.282-283.505.

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Results of an experimental and theoretical analysis of the proprerties of a LD pumped laser using a plano-concave stable resonator and KTP frequency-doubling crystal material are presented. The influence of thermal lens effect on laser output mode and beam quality has been discussed briefly by using the transfer matrix theory. In this paper, further experiment on the output beam quality of a LD pumped acousto-optic Q-switched laser has been also performed by adopting Hartmann-Shack wavefront sensor and Zernike mode reconstruction theory. Using this method, the PV and RMS values of the aberration wavefront, the frontal 35-order Zernike aberrations can be acquired, and the Strehl ratio curve of the output beam and the distribution of circle energy can also be obtained by calculation, so the mode properities can be fully understood. The experimental results show that the beam wavefront aberration is mainly concentrated in the frontal 15 orders of Zernike aberration, mainly including the defocus A3, the low-order astigmatism A4 and A5, and the coma aberration A6 and A7 because of crystal thermal effect.
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6

Zhang, Xiang. "Research on Thermal Effect and Mode Properties of a Q-Switched Laser by Using Shack-Hartmann Wavefront Sensor." Advanced Materials Research 308-310 (August 2011): 1444–47. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1444.

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Results of an experimental and theoretical analysis of the proprerties of a LD pumped laser using a stable resonator and second harmonic conversion crystal are presented. The influence of thermal lens effect on laser output mode and beam quality has been discussed briefly by using the transfer matrix theory. In this paper, further experiment on the output beam quality of a LD pumped acousto-optic Q-switched laser has been also performed by adopting Shack-Hartmann wavefront sensor and Zernike mode reconstruction theory. Using this method, PV and RMS error of aberration wavefront, the first 35-order Zernike aberrations can be acquired. Furthermore, Strehl ratio curve of output beam and the distribution of circle energy can also be obtained by further calculation, so mode properities can be comprehensively understood. Experimental results show that the beam wavefront aberration is mainly concentrated in the first 15 orders of Zernike aberration, mainly including the defocus A3, the low-order astigmatism A4 and A5, the coma and spherical aberration because of the thermal-lens effect.
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7

Zhou, Yan, Ke Cheng, Boyuan Zhu, Na Yao, and Xianqiong Zhong. "Beam spreading, kurtosis parameter and Strehl ratio of partially coherent cosh-Airy beams in atmospheric turbulence." Optik 183 (April 2019): 656–63. http://dx.doi.org/10.1016/j.ijleo.2019.02.144.

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8

Rigaut, François, and Benoit Neichel. "Multiconjugate Adaptive Optics for Astronomy." Annual Review of Astronomy and Astrophysics 56, no. 1 (September 14, 2018): 277–314. http://dx.doi.org/10.1146/annurev-astro-091916-055320.

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Since the year 2000, adaptive optics (AO) has seen the emergence of a variety of new concepts addressing particular science needs; multiconjugate adaptive optics (MCAO) is one of them. By correcting the atmospheric turbulence in 3D using several wavefront sensors and a tomographic phase reconstruction approach, MCAO aims to provide uniform diffraction limited images in the near-infrared over fields of view larger than 1 arcmin2, i.e., 10 to 20 times larger in area than classical single conjugated AO. In this review, we give a brief reminder of the AO principles and limitations, and then focus on aspects particular to MCAO, such as tomography and specific MCAO error sources. We present examples and results from past or current systems: MAD (Multiconjugate Adaptive Optics Demonstrator) and GeMS (Gemini MCAO System) for nighttime astronomy and the AO system, at Big Bear for solar astronomy. We examine MCAO performance (Strehl ratio up to 40% in H band and full width at half maximum down to 52 mas in the case of MCAO), with a particular focus on photometric and astrometric accuracy, and conclude with considerations on the future of MCAO in the Extremely Large Telescope and post–HST era.
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Labate, Luca, Paolo Ferrara, Lorenzo Fulgentini, and Leonida A. Gizzi. "Effects of small misalignments on the intensity and Strehl ratio for a laser beam focused by an off-axis parabola." Applied Optics 55, no. 23 (August 10, 2016): 6506. http://dx.doi.org/10.1364/ao.55.006506.

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Scharmer, G. B., M. G. Löfdahl, G. Sliepen, and J. de la Cruz Rodríguez. "Is the sky the limit?" Astronomy & Astrophysics 626 (June 2019): A55. http://dx.doi.org/10.1051/0004-6361/201935735.

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We discuss the use of measurements of the solar granulation contrast as a measure of optical quality. We demonstrate that for data recorded with a telescope that uses adaptive optics and/or post-processing to compensate for many low- and high-order aberrations, the RMS granulation contrast is directly proportional to the Strehl ratio calculated from the residual (small-scale) wavefront error (static and/or from seeing). We demonstrate that the wings of the high-order compensated point spread function for the Swedish 1-m Solar Telescope (SST) are likely to extend to a radius of not more than about 2″, which is consistent with earlier conclusions drawn from stray-light compensation of sunspot images. We report on simultaneous measurements of seeing and solar granulation contrast averaged over 2 s time intervals at several wavelengths from 525 nm to 853.6 nm on the red-beam (CRISP beam) and wavelengths from 395 nm to 484 nm on the blue-beam (CHROMIS beam). These data were recorded with the SST, which has been revamped with an 85-electrode adaptive mirror and a new tip-tilt mirror, both of which were polished to exceptionally high optical quality. Compared to similar data obtained with the previous 37-electrode adaptive mirror in 2009 and 2011, there is a significant improvement in image contrast. The highest 2 s average image contrasts measured in April 2015 through 0.3−0.9 nm interference filters at 525 nm, 557 nm, 630 nm, and 853.5 nm with compensation only for the diffraction limited point spread function of SST are 11.8%, 11.8%, 10.2%, and 7.2%, respectively. Similarly, the highest 2 s contrasts measured at 395 nm, 400 nm, and 484 nm in May 2016 through 0.37−1.3 nm filters are 16%, 16%, and 12.5%, respectively. The granulation contrast observed with SST compares favorably to measured values with SOT on Hinode and with Sunrise as well as major ground-based solar telescopes. Simultaneously with the above wideband red-beam data, we also recorded narrowband continuum images with the CRISP imaging spectropolarimeter. We find that contrasts measured with CRISP are entirely consistent with the corresponding wideband contrasts, demonstrating that any additional image degradation by the CRISP etalons and telecentric optical system is marginal or even insignificant. Finally, we discuss the origin of the 48 nm RMS wavefront error needed to bring consistency between the measured granulation contrast and that obtained from 3D simulations of convection.
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Dissertations / Theses on the topic "Streuli, Beat"

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Öney, Siğnem Tabur Fatma. "Sıcaklık stresi altında çimlendirilen Vicia faba L. cv. Eresen- 87 tohumlarında mitotik indeks, hücre döngüsü ve kromozom davranışları üzerine kimyasal gübrelerin etkileri /." Isparta : SDÜ Fen Bilimleri Enstitüsü, 2009. http://tez.sdu.edu.tr/Tezler/TF01256.pdf.

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Streuff, Beate [Verfasser], Martina [Akademischer Betreuer] Hoedemaker, and Martina [Gutachter] Hoedemaker. "Vergleich zweier Fütterungsstrategien trockenstehender Milchkühe in Hinblick auf die ante- und postpartale Trockenmasseaufnahme und die Tiergesundheit sowie die Milchleistung / Beate Streuff ; Gutachter: Martina Hoedemaker ; Betreuer: Martina Hoedemaker." Hannover : Stiftung Tierärztliche Hochschule Hannover, 2021. http://d-nb.info/1237684668/34.

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Books on the topic "Streuli, Beat"

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Streuli, Beat. Compostela: Beat Streuli. Santiago de Compostela: Centro Galego de Arte Contemporánea, 2004.

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2

Rupert, Pfab, Groĭs Boris, Städtische Kunsthalle Düsseldorf, and Kunsthalle Zürich, eds. Beat Streuli: City. Ostfildern-Ruit: Hatje Cantz, 1999.

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3

Beat Streuli, Gabriele Basilico: Urban views. Rotterdam: NAi Publishers, 2000.

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1960-, Katz Vincent, ed. Beat Streuli: New York City 2000-02. Ostfildern-Ruit: Hatje Cantz, 2003.

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Streuli, Beat. Beat Streuli: USA 95 : Württembergischer Kunstverein, Stuttgart. Ostfildern: Cantz, 1995.

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Streuli, Beat. Beat Streuli: Photographie : Aargauer Kunsthaus, Aarau, 10.5-8.6.1986. Aarau: Das Kunsthaus, 1986.

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Roberta, Valtorta, Pace Alessandra, and Turin (Italy). Galleria civica d'arte moderna e contemporanea., eds. Beat Streuli: Portraits 98-00 : la bella estate. Torino: Hopefulmonster, 2000.

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8

Alexander, Braun. Alexander Braun, Beat Streuli, Erwin Wurm: Videos & Gespräche = videos & conversations. Nürnberg: Verlag für moderne Kunst, 2000.

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Chur, Bündner Kunstmuseum, ed. Gefrorene Momente: Daniel Spoerris Fallenbilder im Dialog mit Judith Albert, David Claerbout, Caro Niederer, Beat Streuli, Jeff Wall. Heidelberg: Kehrer, 2009.

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Streuli, Beat. Bondi Beach / Parramatta Road, 1998 ; [27.1.-7.3.1999, Sprengel Museum Hannover] / [Ausstellung und Katalog: Beat Streuli, Thomas Weski ; Übersetzung: Egbert Hörmann]. Hannover: Sprengel Museum, 1999.

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Conference papers on the topic "Streuli, Beat"

1

Yan, Yahui, Bingqi Liu, Bing Zhou, and Dongsheng Wu. "Studies of energy Strehl ratio of a collimated Gaussian beam in turbulent atmosphere." In ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, edited by Keith E. Wilson, Jing Ma, Liren Liu, Huilin Jiang, and Xizheng Ke. SPIE, 2013. http://dx.doi.org/10.1117/12.2037787.

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Enguehard, S., and Brian Hatfield. "Functional reconstruction predictions of uplink whole beam Strehl ratios in the presence of thermal blooming." In Optics, Electro-Optics, and Laser Applications in Science and Engineering, edited by Peter B. Ulrich and LeRoy E. Wilson. SPIE, 1991. http://dx.doi.org/10.1117/12.43556.

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Reports on the topic "Streuli, Beat"

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Stroud, P. The dependence of the anisoplanatic Strehl of a compensated beam on the beacon distribution. Office of Scientific and Technical Information (OSTI), February 1992. http://dx.doi.org/10.2172/5549409.

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Stroud, P. The dependence of the anisoplanatic Strehl of a compensated beam on the beacon distribution. Final report. Office of Scientific and Technical Information (OSTI), February 1992. http://dx.doi.org/10.2172/10136515.

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