Bibliographies thématiques / Radiations spatiales

Sommaire

Articles de revues
Thèses
Livres
Chapitres de livres
Actes de conférences
Rapports d'organisations

Littérature scientifique sur le sujet « Radiations spatiales »

Auteur : Grafiati

Publié le 16 novembre 2024

Mis à jour le 31 juillet 2025

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les listes thématiques d’articles de revues, de livres, de thèses, de rapports de conférences et d’autres sources académiques sur le sujet « Radiations spatiales ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Articles de revues sur le sujet "Radiations spatiales"

Kitov, B. I. "Fluorescence of anisotropic primary X-ray radiation." Аналитика и контроль 26, no. 1 (2022): 6–12. http://dx.doi.org/10.15826/analitika.2022.26.1.002.

Texte intégral

Résumé :

In the X-ray spectral fluorescence analysis, the anisotropy of primary radiation results in an uneven radiation of a sample’s surface, strengthening the role of some sections and weakening the role of others. The goal of the current work was to determine the minimal distance from the window of the X-ray tube with a cone-shaped anode at which the intensity of the sample’s radiation becomes homogeneous. The research method was the computer modeling of the X-ray fluorescence experiment. The working model was built on the basis of two equations for the densities of the fluxes of braking and charac

Styles APA, Harvard, Vancouver, ISO, etc.

Schwarz, Benjamin, Matthias Sammer, Nicole Matejka, Sarah Rudigkeit, and Judith Reindl. "High-LET targeted microbeam irradiation induces local chromatin reorganization in living cells showing active basal mechanisms at highly complex DNA damage sites." Journal of Radiation Research and Imaging 2, no. 1 (2023): 1–8. http://dx.doi.org/10.46439/radiation.2.006.

Texte intégral

Résumé :

DNA repair eukaryotic cells have additional protective mechanisms that avoid uncontrolled interaction of different parts of the chromatin and damaged regions. Key factors here are the regulation of chromatin density and mobility. The 4D (temporal and spatial) organization of chromatin is controlling this security barrier by regulating the accessibility of genes, flexibility of DNA, and its ability to move inside the nucleus. How this regulation mechanisms are involved in DNA repair upon radiation damage is until now rarely known but an important part to understand the enhanced effectiveness of

Styles APA, Harvard, Vancouver, ISO, etc.

Volosyuk, V. K., S. S. Zhyla, V. V. Pavlikov, A. D. Abramov та V. G. Yakovlev. "Оptimal algorithm of radio brightness estimation in the spatial distributed radiometric sys-tems". Radiotekhnika, № 191 (22 грудня 2017): 143–49. http://dx.doi.org/10.30837/rt.2017.4.191.13.

Texte intégral

Résumé :

Optimization of processing of radio thermal radiation noise processes in multichannel spatially-distributed radiometric systems is performed. The received algorithms applicable in the systems of aperture synthesis are received within the maximum likelihood method in the assumption that spectral brightness of radiation within the frequency band of the receiver is constant, but as the image of a radiating object it depends on spatial (angular) coordinates. Feature of the solved tasks consists in using spectral VF -transforms which do not require execution of the spatiotemporal band-limitedness (

Styles APA, Harvard, Vancouver, ISO, etc.

Bratman, Vladimir, Yuri Lurie, Yuliya Oparina, and Andrey Savilov. "Capabilities of Terahertz Cyclotron and Undulator Radiation from Short Ultrarelativistic Electron Bunches." Instruments 3, no. 4 (2019): 55. http://dx.doi.org/10.3390/instruments3040055.

Texte intégral

Résumé :

Mechanisms of coherent spontaneous cyclotron and undulator radiations of short dense bunches, in which electrons move along the same stationary helical trajectories, but have different dynamic properties, have been compared in detail. The results are based on the simplest 1D model in the form of a plane consisting of uniformly distributed synchronously moving and in-phase emitting particles, as well as numerical 3D codes developed to study the dynamics of bunches in waveguides taking into account the effects of the radiation and spatial charge fields. For cyclotron radiation under group synchr

Styles APA, Harvard, Vancouver, ISO, etc.

Mordachev, V. I. "Assessment of the Contribution of Radiations of User Equipment to the Anthropogenic Electromagnetic Background Created by Mobile (Cellular) Communications." Doklady BGUIR 21, no. 5 (2023): 50–58. http://dx.doi.org/10.35596/1729-7648-2023-21-5-50-58.

Texte intégral

Résumé :

The declared increase in spatial density of user (terminal, peripheral, etc.) radiating equipment (UE) of mobile communications up to 0.1 UE/m2 in 4G (LTE) networks, up to 1.0 UE/m2 in 5G (NR) networks and up to 10 UE/m2 in promising 6G networks may cause an unacceptable increase in electromagnetic background and in corresponding forced risks to public health. The paper proposes a method for assessing the contribution of UE radiations to the level of anthropogenic electromagnetic background created by mobile communications. This method is based on the analysis of the electromagnetic loading on

Styles APA, Harvard, Vancouver, ISO, etc.

Karabekova, D. Zh. "VARIATION OF SPATIALLY HETEROGENEOUS RADIATION BY COORDINATE-SENSITIVE RECEIVER." Eurasian Physical Technical Journal 17, no. 1 (2020): 113–18. http://dx.doi.org/10.31489/2020no1/113-118.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Kang, Sinkyu, Sungwoo Kim, and Dowon Lee. "Spatial and temporal patterns of solar radiation based on topography and air temperature." Canadian Journal of Forest Research 32, no. 3 (2002): 487–97. http://dx.doi.org/10.1139/x01-221.

Texte intégral

Résumé :

Incident solar radiation is a driving force for many ecological and hydrological processes. For this study, we developed TopoRad, a new radiation model, to describe spatial and temporal patterns of daily radiation based on topography and daily temperature regimes. The model was applied to the Mount Jumbong Forest, located in the mid-eastern area of the Korean peninsula; and the model calculations were evaluated by varying the spatial scales of the digital elevation models (DEMs). In the TopoRad, a clearness index was used to calculate global radiation on a horizontal surface and to partition d

Styles APA, Harvard, Vancouver, ISO, etc.

Pascolutti, Victoria J., and Kevin Arbuckle. "Flowing Round the World: Water Snakes (Natricidae) Show Habitat-Related Adaptive Radiation After Dispersal to the New World." Diversity 17, no. 7 (2025): 449. https://doi.org/10.3390/d17070449.

Texte intégral

Résumé :

Adaptive radiations are characterized by increases in rates of lineage and trait evolution, typically due to the opening of new ecological opportunities such as may follow from dispersal to a new region or the evolution of a trait that allows exploitation of new niches. This results in clades that have accumulated unusually high biological diversity within a relatively short evolutionary timespan and hence the phenomenon has attracted longstanding interest amongst evolutionary biologists. Natricidae is a family of snakes with a primarily Old World distribution but which have colonized the New

Styles APA, Harvard, Vancouver, ISO, etc.

Linder, Hans Peter. "Plant species radiations: where, when, why?" Philosophical Transactions of the Royal Society B: Biological Sciences 363, no. 1506 (2008): 3097–105. http://dx.doi.org/10.1098/rstb.2008.0075.

Texte intégral

Résumé :

The spatial and temporal patterns of plant species radiations are largely unknown. I used a nonlinear regression to estimate speciation and extinction rates from all relevant dated clades. Both are surprisingly high. A high species richness can be the result of either little extinction, thus preserving the diversity that dates from older radiations (a ‘mature radiation’), or a ‘recent and rapid radiation’. The analysis of radiations from different regions (Andes, New Zealand, Australia, southwest Africa, tropics and Eurasia) revealed that the diversity of Australia may be largely the result of

Styles APA, Harvard, Vancouver, ISO, etc.

KAWAMURA, TOHRU, KAZUHIKO HORIOKA та FUMIHIRO KOIKE. "Potential of Kα radiation by energetic ionic particles for high energy density plasma diagnostics". Laser and Particle Beams 24, № 2 (2006): 261–67. http://dx.doi.org/10.1017/s0263034606060393.

Texte intégral

Résumé :

In this paper, potential of diagnostics with the use ofKα radiation for an energy deposition process from an intense ion-beam to background plasma is considered quantitatively.Kα radiation is a good candidate for the purpose. The wavelength ofKα radiation is varied according to the charge state of an emitter atom, and the diagnostics spatially resolved with radiations from various kinds of charge states can give us a profile of plasma temperature in a target material. For the calculation ofKα yield, an atomic population kinetics code is developed, and the result shows thatKα radiation has pote

Styles APA, Harvard, Vancouver, ISO, etc.

Plus de sources

Thèses sur le sujet "Radiations spatiales"

Restier-Verlet, Juliette. "Biologie des radiations spatiales : composantes radiatives spécifiques, effets moléculaires et contremesures chimiques." Electronic Thesis or Diss., Lyon 1, 2024. http://www.theses.fr/2024LYO10307.

Texte intégral

Résumé :

L'exposition aux radiations ionisantes constitue l'un des risques majeurs pour les astronautes dans le cadre de l’exploration spatiale. Cependant, afin de quantifier de manière fiable les risques radiobiologiques, les sources de radiations spatiales doivent être rigoureusement caractérisées et les tissus à risque bien identifiés. A travers les projets en radiobiologie spatiale de l’UMR 1296, quatre axes de recherches ont été privilégiés. Nous avons montré que le corps des astronautes est soumis à la fois à un bain de rayonnement de forte énergie impactant les tissus profonds (ex : le cœur, l’o

Styles APA, Harvard, Vancouver, ISO, etc.

Kündig, Jamil. "Cellules solaires en couches minces de silicium : résistance aux radiations et applications spatiales /." [S.l.] : [s.n.], 2003. http://library.epfl.ch/theses/?nr=2874.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Pacaud, Rémi. "Étude et modélisation numérique de l’effet des radiations spatiales sur l’évolution des propriétés physiques et électriques des matériaux embarqués." Thesis, Toulouse, ISAE, 2018. http://www.theses.fr/2018ESAE0039/document.

Texte intégral

Résumé :

Ma thèse consiste à établir un modèle numérique 1D qui permettra d'approfondir nos connaissances dans la compréhension des mécanismes physiques régissant le transport de charges dans les matériaux diélectriques comme le Kapton ou le Téflon soumis à des irradiations hauts-flux/hautes-énergies. Ce modèle est implémenté sous l'environnement Eclipse. Ensuite, les résultats numériques seront comparés aux résultats expérimentaux pour contrôler le bon fonctionnement du code une dimension (1D). A plus ou moins long terme, cette thèse permettra de déboucher sur une bonne compréhension du transport de c

Styles APA, Harvard, Vancouver, ISO, etc.

Pedroza, Guillaume. "Evaluation de la fiabilité de composants optoélectroniques pour des applications spatiales : apport des caractérisations et des modélisations électro-optiques." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14470/document.

Texte intégral

Résumé :

Ce mémoire présente les résultats de travaux portant sur l’analyse de la fiabilité de diodes laser de pompe émettant à 980 nm et de photodiodes InGaAs pour des applications spatiales. La sévérité de l’environnement spatial (vide, radiations, contraintes thermomécaniques) impose d’évaluer la robustesse de ces deux technologies qui ont été spécialement conçues pour des applications de télécommunications sous-marines. L’objectif de ce mémoire est donc de proposer une méthodologie d’évaluation de la fiabilité en s’appuyant la caractérisation électro-optique, l’analyse physico-chimique et la modéli

Styles APA, Harvard, Vancouver, ISO, etc.

Duchez, Jean-Bernard. "Étude du noircissement dans les fibres optiques dopées Ytterbium : interaction entre photo- et radio-noircissement." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4029.

Texte intégral

Résumé :

Cette thèse traite des dégradations induites par la pompe (photo-noircissement) et les radiations ionisantes externes (radio-noircissement) dans les fibres optiques en silice dopées ytterbium (FDY) utilisées en environnement sévère. Au travers de caractérisations expérimentales et de modélisations inédites, elle analyse leur interaction et en tire les conséquences quant à la tenue des FDY aux radiations sous pompe. La première partie porte sur l’identification des défauts induits (centres colorés) et leurs mécanismes de formation/guérison. Elle s’appuie sur un ensemble de caractérisations post

Styles APA, Harvard, Vancouver, ISO, etc.

Bourmancé, Lucas. "Caractérisation de l'influence des radiations spatiales et des saumures complexes sur la préservation de l'enveloppe cellulaire de Halobacterium salinarum en tant que biosignature de la vie ancienne." Electronic Thesis or Diss., Paris, Muséum national d'histoire naturelle, 2025. http://www.theses.fr/2025MNHN0001.

Texte intégral

Résumé :

Les environnements hypersalins, omniprésents dans le système solaire (Terre, Mars, Encelade, Europe), possèdent des propriétés uniques de préservation. Ces environnements, sous l'effet de l'évaporation, favorisent la formation d'évaporites et de cristaux d'halite (NaCl). Des cellules d'archées halophiles telles que Halobacterium ont été isolées et préservées dans des inclusions fluides de cristaux d'halite terrestre. Ces inclusions pourraient ainsi constituer des réservoirs pour des biosignatures anciennes. L'enveloppe cellulaire des haloarchées représente une cible prometteuse en tant que bio

Styles APA, Harvard, Vancouver, ISO, etc.

Bernal, Olivier. "Conception de Convertisseurs Analogique-Numérique en technologie CMOS basse tension pour chaînes Vidéo CCD Spatiales." Phd thesis, Toulouse, INPT, 2006. http://oatao.univ-toulouse.fr/7495/1/bernal.pdf.

Texte intégral

Résumé :

Dans le cadre des Instruments d'Observation de la Terre, les technologies microélectroniques sur lesquelles sont basés les systèmes spatiaux embarqués, ont tendance à être de moins en moins basées sur les technologies dites durcies aux radiations au profit de technologies CMOS sub-microniques basse-tension dédiées principalement aux circuits numériques. Aussi, dans un premier temps, des méthodes de durcissement aux radiations présentes dans l'espace ont dû être analysées tant au niveau système qu'au niveau circuit et layout pour améliorer la fiabilité des Convertisseurs Analogique-Numérique (C

Styles APA, Harvard, Vancouver, ISO, etc.

Belloir, Jean-Marc. "Spectroscopie du courant d’obscurité induit par les effets de déplacement atomique des radiations spatiales et nucléaires dans les capteurs d’images CMOS à photodiode pincée." Thesis, Toulouse, ISAE, 2016. http://www.theses.fr/2016ESAE0029/document.

Texte intégral

Résumé :

Les imageurs CMOS représentent un outil d’avenir pour de nombreuses applications scientifiques de haut vol, tellesque l’observation spatiale ou les expériences nucléaires. En effet, ces imageurs ont vu leurs performancesdémultipliées ces dernières années grâce aux avancées incessantes de la microélectronique, et présentent aussi desavantages indéniables qui les destinent à remplacer les CCDs dans les futurs instruments spatiaux. Toutefois, enenvironnement spatial ou nucléaire, ces imageurs doivent faire face aux attaques répétées de particules pouvantrapidement dégrader leurs performances élec

Styles APA, Harvard, Vancouver, ISO, etc.

Jouni, Ali. "Space radiation effects on CMOS single photon avalanche diodes (SPADs)." Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0012.

Texte intégral

Résumé :

Le sujet de cette thèse traite des effets des radiations spatiales sur des détecteurs CMOS à avalanches, et particulièrement sur les dispositifs SPADs (pour Single Photon Avalanche Diode en anglais, ou photodiode à avalanche à photon unique). Ces photodiodes présentent un gain interne presque infini et sont donc sensibles à des très faibles conditions de lumières. Ainsi, avec en plus une excellente résolution temporelle, ces capteurs peuvent être très intéressant pour des applications spatiales nécessitant des mesures de temps de vols, comme la topographie d’objets célestes ou les Rendez-vous

Styles APA, Harvard, Vancouver, ISO, etc.

Ladaci, Ayoub. "Rare earth doped optical fibers and amplifiers for space applications." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSES027/document.

Texte intégral

Résumé :

Les fibres dopées aux terres rares (REDFs) représentent un composant clef dans la fabrication de sources laser et d’amplificateurs optiques (REDFAs). Leurs hautes performances rendent cette technologie particulièrement attractive pour les applications spatiales en tant que partie active des gyroscopes à fibres optiques, pour le transfert de données et les applications LIDARS. Cependant, la grande sensibilité de ces fibres actives limite l’intégration des REDFAs au sein des missions spatiales. De nombreuses études ont été menées pour dépasser ces limitations et différentes techniques de mitigat

Styles APA, Harvard, Vancouver, ISO, etc.

Plus de sources

Livres sur le sujet "Radiations spatiales"

Sheng-I, Hsu. Spatial variation of solar radiation in Hong Kong. Chinese University of Hong Kong, Dept.of Geography, 1986.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

W, Townsend Lawrence, Wilson J. W, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Division., eds. Benchmark solutions for the galactic ion transport equations: Energy and spatially dependent problems. National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1989.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Center, Goddard Space Flight, ed. Small-scale spatial fluctuations in the soft X-ray background. National Aeronautics and Space Administration, Goddard Space Flight Center, 2001.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Kuntz, Kip D. Small-scale spatial fluctuations in the soft X-ray background. National Aeronautics and Space Administration, Goddard Space Flight Center, 2001.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Center, Goddard Space Flight, ed. Small-scale spatial fluctuations in the soft X-ray background. National Aeronautics and Space Administration, Goddard Space Flight Center, 2001.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Quattrochi, Dale A. Spatial and temporal scaling of thermal infrared remote sensing data. National Aeronautics and Space Administration, 1995.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

National Council on Radiation Protection and Measurements. Radiation protection for space activities: Supplement to previous recommendations. National Council on Radiation Protection and Measurements, 2014.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

National Council on Radiation Protection and Measurements. Guidance on radiation received in space activities. NCRP, 1989.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

National Council on Radiation Protection and Measurements. Potential impact of individual genetic susceptibility and previous radiation exposure on radiation risk for astronauts. National Council on Radiation Protection and Measurements, 2011.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

United States. National Aeronautics and Space Administration., ed. Exploration of the solar-stellar connection at high specral resolution with the ultraviolet spectrometer and polarimeter and studies of thermal bifurcation at the ... University of Colorado at Boulder, 1987.

Trouver le texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Plus de sources

Chapitres de livres sur le sujet "Radiations spatiales"

Weik, Martin H. "spatially coherent radiation." In Computer Science and Communications Dictionary. Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_17820.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Hammer, Annette, and H. G. Beyer. "Solar Radiation solar radiation , Spatial Solar Radiation spatial variability and Temporal Variability solar radiation temporal variability solar radiation spatial variability." In Encyclopedia of Sustainability Science and Technology. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_449.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Hammer, Annette, and H. G. Beyer. "Solar Radiation solar radiation , Spatial Solar Radiation spatial variability and Temporal Variability solar radiation temporal variability solar radiation spatial variability." In Solar Energy. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-5806-7_449.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Rosanov, Nikolay N. "Nonlinear Radiation Reflection." In Spatial Hysteresis and Optical Patterns. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04792-7_5.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Evans, Charles R., Larry L. Smarr, and James R. Wilson. "Numerical Relativistic Gravitational Collapse with Spatial Time Slices." In Astrophysical Radiation Hydrodynamics. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-009-4754-2_15.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Zhian, Sun, and Weng Duming. "A Climatological Calculation Method for Effective Radiation With its Spatial and Temporal Distribution Over China." In Atmospheric Radiation. American Meteorological Society, 1987. http://dx.doi.org/10.1007/978-1-935704-18-8_24.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Guodong, Gao, and Lu Yurong. "Calculation and Spatial and Temporal Distributions of the Components of the Radiation Balance for China." In Atmospheric Radiation. American Meteorological Society, 1987. http://dx.doi.org/10.1007/978-1-935704-18-8_30.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Zhibao, Shen, Yang Huayi, and Ji Guoliang. "The Characteristics of Temporal and Spatial Variations in the Surface Radiation Balance Over the Qinghai-Xizang Plateau." In Atmospheric Radiation. American Meteorological Society, 1987. http://dx.doi.org/10.1007/978-1-935704-18-8_11.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Koskinen, Hannu E. J., and Emilia K. J. Kilpua. "Radiation Belts and Their Environment." In Astronomy and Astrophysics Library. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-82167-8_1.

Texte intégral

Résumé :

AbstractThe Van Allen radiation belts of high-energy electrons and ions, mostly protons, are embedded in the Earth’s inner magnetosphere where the geomagnetic field is close to that of a magnetic dipole. Understanding of the belts requires a thorough knowledge of the inner magnetosphere and its dynamics, the coupling of the solar wind to the magnetosphere, and wave–particle interactions in different temporal and spatial scales. In this introductory chapter we briefly describe the basic structure of the inner magnetosphere, its different plasma regions and the basics of magnetospheric activity.

Styles APA, Harvard, Vancouver, ISO, etc.

Bowman, Michael K., Alexander G. Maryasov, and Yuri D. Tsvetkov. "EPR Measurement of the Spatial Distribution of Radiation Damage." In Applications of EPR in Radiation Research. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09216-4_16.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Actes de conférences sur le sujet "Radiations spatiales"

Taylor, E. W., A. D. Sanchez, S. P. Chapman, et al. "Responses of a Spatial Light Modulator to Pulsed Electron Irradiations." In Spatial Light Modulators and Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/slma.1995.lthd4.

Texte intégral

Résumé :

The application of photonic technologies in space and enhanced environments has progressed steadily. The first survivable fiber optic point to point links were demonstrated in 19841, paving the way for other proposed experiments including acousto-optic devices2. Radiation hardness studies of integrated3 and coupled wave optic4 devices have been performed. Photonic hardness standards are progressing from the studies of international round robin teams5,6. However, limited data exists on the radiation responses of organic spatial light modulators7 (SLMs) or acousto-optic modulators in radiation e

Styles APA, Harvard, Vancouver, ISO, etc.

Luo, Qingzhou, Yechao Yan, and Shuping Yue. "Computation of hillshade values considering diffuse radiation condition." In International Symposium on Spatial Analysis, Spatial-temporal Data Modeling, and Data Mining, edited by Yaolin Liu and Xinming Tang. SPIE, 2009. http://dx.doi.org/10.1117/12.838393.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Sun, Li-Bo, and J. Fred Holmes. "Measurement of spatially filtered laser radiation in atmospheric turbulence." In OSA Annual Meeting. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.fp8.

Texte intégral

Résumé :

One effect of atmospheric turbulence on laser beam propagation is to randomly spatially modulate the intensity. Consequently, by optically spatially filtering the received intensity, the turbulence-induced spatial modulation can be separated from other effects. In a previous paper, the theory applicable to this problem was developed. This work involves measurement of the on-axis mean, variance, and autocovariance of the intensity for line of sight laser propagation after the received radiation has been high-pass spatially filtered. The experiment was conducted over a flat, featureless 500-m at

Styles APA, Harvard, Vancouver, ISO, etc.

Parshin, Yury N., and Maxim V. Grachev. "Efficiency of the Angular Coordinate Estimation under the Action of Spatially Correlated Interferences and Mutual Influence of Spatial Channels." In 2019 Radiation and Scattering of Electromagnetic Waves (RSEMW). IEEE, 2019. http://dx.doi.org/10.1109/rsemw.2019.8792801.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Fedotova, Anna, Mohammadreza Younesi, Dennis Arslan, Thomas Pertsch, Isabelle Staude, and Frank Setzpfandt. "Second-Harmonic Generation from Metasurfaces with Spatially Engineered Nonlinearity." In CLEO: QELS_Fundamental Science. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cleo_qels.2022.fth4b.7.

Texte intégral

Résumé :

We demonstrate resonant metasurfaces with spatially engineered nonlinearity based on periodically poled lithium niobate. Such spatial control of the nonlinearity unlocks additional degrees of freedom for controlling the properties of second-harmonic radiation from metasurfaces.

Styles APA, Harvard, Vancouver, ISO, etc.

Hoszowska, J. "Spatial Coherence Preservation By Synthetic Single Diamond Crystals." In SYNCHROTRON RADIATION INSTRUMENTATION: Eighth International Conference on Synchrotron Radiation Instrumentation. AIP, 2004. http://dx.doi.org/10.1063/1.1757901.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Wu, Ziling, Iksung Kang, Tao Zhou, et al. "Photon-starved X-ray Ptychographic Imaging using Spatial Pyramid Atrous Convolution End-to-end Reconstruction (PtychoSPACER)." In Computational Optical Sensing and Imaging. Optica Publishing Group, 2022. http://dx.doi.org/10.1364/cosi.2022.cf1d.6.

Texte intégral

Résumé :

We realize low-dose X-ray ptychography via Spatial Pyramid Atrous Convolution End-to-end Reconstruction (PtychoSPACER), which offers nanometer-scale resolution on the complex index of refraction for spatially extended samples non-destructively and reduces the risk of radiation damage.

Styles APA, Harvard, Vancouver, ISO, etc.

Tang, Mau-Tsu, Yen-Fang Song, Gung-Chian Yin, et al. "Hard X-ray Microscopy with sub 30 nm Spatial Resolution." In SYNCHROTRON RADIATION INSTRUMENTATION: Ninth International Conference on Synchrotron Radiation Instrumentation. AIP, 2007. http://dx.doi.org/10.1063/1.2436296.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

James, Daniel F. V. "Quantum-optical analysis of Wolf’s spectral shifts." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.fc6.

Texte intégral

Résumé :

Not long ago Wolf discovered a modification of the spectrum of radiation due to the spatial coherence of the source.1 His analysis used a model correlation function that demonstrated the effect, without discussing any physical mechanism by which the correlations may arise. This paper presents an analysis of one such physical mechanism, namely, the radiation reaction. Following earlier work by Varada and Agarwal,2 an explicit calculation, performed in the harmonic oscillator approximation, for two radiating atoms in equilibrium with a thermal field reveals a relationship between this effect and

Styles APA, Harvard, Vancouver, ISO, etc.

Lo, Y. C. "Performance Of An Infrared Beamline For High Spatial Resolution FTIR Microscopy." In SYNCHROTRON RADIATION INSTRUMENTATION: Eighth International Conference on Synchrotron Radiation Instrumentation. AIP, 2004. http://dx.doi.org/10.1063/1.1757838.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Rapports d'organisations sur le sujet "Radiations spatiales"

Morkun, Volodymyr, Natalia Morkun, Andrii Pikilnyak, Serhii Semerikov, Oleksandra Serdiuk, and Irina Gaponenko. The Cyber-Physical System for Increasing the Efficiency of the Iron Ore Desliming Process. CEUR Workshop Proceedings, 2021. http://dx.doi.org/10.31812/123456789/4373.

Texte intégral

Résumé :

It is proposed to carry out the spatial effect of high-energy ultrasound dynamic effects with controlled characteristics on the solid phase particles of the ore pulp in the deslimer input product to increase the efficiency of thickening and desliming processes of iron ore beneficiation products. The above allows predicting the characteristics of particle gravitational sedimentation based on an assessment of the spatial dynamics of pulp solid- phase particles under the controlled action of high-energy ultrasound and fuzzy logical inference. The object of study is the assessment of the character

Styles APA, Harvard, Vancouver, ISO, etc.

Jing, Tao. High spatial resolution radiation detectors based on hydrogenated amorphous silicon and scintillator. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/95260.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Clausen, Jay, Susan Frankenstein, Jason Dorvee, et al. Spatial and temporal variance of soil and meteorological properties affecting sensor performance—Phase 2. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41780.

Texte intégral

Résumé :

An approach to increasing sensor performance and detection reliability for buried objects is to better understand which physical processes are dominant under certain environmental conditions. The present effort (Phase 2) builds on our previously published prior effort (Phase 1), which examined methods of determining the probability of detection and false alarm rates using thermal infrared for buried-object detection. The study utilized a 3.05 × 3.05 m test plot in Hanover, New Hampshire. Unlike Phase 1, the current effort involved removing the soil from the test plot area, homogenizing the mat

Styles APA, Harvard, Vancouver, ISO, etc.

Lent, E. M., and W. C. Dickinson. Spatial distribution of radiation from the Beam Line VIII-W 15-period wiggler. Office of Scientific and Technical Information (OSTI), 1985. http://dx.doi.org/10.2172/5526417.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

Clausen, Jay, Michael Musty, Anna Wagner, Susan Frankenstein, and Jason Dorvee. Modeling of a multi-month thermal IR study. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41060.

Texte intégral

Résumé :

Inconsistent and unacceptable probability of detection (PD) and false alarm rates (FAR) due to varying environmental conditions hamper buried object detection. A 4-month study evaluated the environmental parameters impacting standoff thermal infra-red(IR) detection of buried objects. Field observations were integrated into a model depicting the temporal and spatial thermal changes through a 1-week period utilizing a 15-minute time-step interval. The model illustrates the surface thermal observations obtained with a thermal IR camera contemporaneously with a 3-d presentation of subsurface soil

Styles APA, Harvard, Vancouver, ISO, etc.

Nagel, Jessica, Holly Paisted, Christopher Peck, and Paul Duffy. Condition and trends of estuarine water quality in Gateway National Recreation Area: Northeast Coastal and Barrier Network, 2003–2022. National Park Service, 2025. https://doi.org/10.36967/2310870.

Texte intégral

Résumé :

This report summarizes conditions and trends in routine long-term water quality monitoring data collected at Gateway National Recreation Area in New York from 2003 through 2022 as part of the NPS NCBN Vital Signs Estuarine Nutrient Enrichment monitoring program. This comprehensive program incorporates spatial surveys, repeated monitoring at trend stations, and continuous monitoring at a fixed logging station in an effort to establish overall condition of the estuary as well as to identify potential trends or changes in condition over time. All monitoring was conducted during a four-week summer

Styles APA, Harvard, Vancouver, ISO, etc.

Fassnacht, Steven, Kazuyoshi Suzuki, Jessica Sanow, et al. Snow surface roughness across spatio-temporal scales. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/49199.

Texte intégral

Résumé :

The snow surface is at the interface between the atmosphere and Earth. The surface of the snowpack changes due to its interaction with precipitation, wind, humidity, short- and long-wave radiation, underlying terrain characteristics, and land cover. These connections create a dynamic snow surface that impacts the energy and mass balance of the snowpack, blowing snow potential, and other snowpack processes. Despite this, the snow surface is generally considered a constant parameter in many Earth system models. Data from the National Aeronautics and Space Administration (NASA) Cold Land Processe

Styles APA, Harvard, Vancouver, ISO, etc.

Ruosteenoja, Kimmo. Applicability of CMIP6 models for building climate projections for northern Europe. Finnish Meteorological Institute, 2021. http://dx.doi.org/10.35614/isbn.9789523361416.

Texte intégral

Résumé :

In this report, we have evaluated the performance of nearly 40 global climate models (GCMs) participating in Phase 6 of the Coupled Model Intercomparison Project (CMIP6). The focus is on the northern European area, but the ability to simulate southern European and global climate is discussed as well. Model evaluation was started with a technical control; completely unrealistic values in the GCM output files were identified by seeking the absolute minimum and maximum values. In this stage, one GCM was rejected totally, and furthermore individual output files from two other GCMs. In evaluating t

Styles APA, Harvard, Vancouver, ISO, etc.

Nagel, Jessica, Holly Paisted, Christopher Peck, and Paul Duffy. Condition and trends of estuarine water quality in George Washington Birthplace National Monument: Northeast Coastal and Barrier Network, 2009-2021. National Park Service, 2025. https://doi.org/10.36967/2311158.

Texte intégral

Résumé :

This report summarizes conditions and trends in routine long-term water quality monitoring data collected at George Washington Birthplace National Monument in Virginia from 2009 through 2021 as part of the NPS NCBN Vital Signs Estuarine Nutrient Enrichment monitoring program. This comprehensive program incorporates spatial surveys, repeated monitoring at trend stations, and continuous monitoring at a fixed logging station in an effort to establish overall condition of the estuary as well as to identify potential trends or changes in condition over time. All monitoring was conducted during a fo

Styles APA, Harvard, Vancouver, ISO, etc.

Peralta, Airy, and Chris Ray. Lagomorph ladders: Assessing a multi-host community and potential for spillover of rabbit hemorrhagic disease at Great Sand Dunes National Park and Preserve. National Park Service, 2024. http://dx.doi.org/10.36967/2303667.

Texte intégral

Résumé :

Rabbit hemorrhagic disease virus type 2 (RHDV2) has caused dramatic declines in rabbits and hares on several continents, with cascading effects on local ecology. Recent mortalities have been reported for several rabbit and hare species in the United States, suggesting broad susceptibility of lagomorphs. If this susceptibility extends to the American pika (Ochotona princeps), the most cold-adapted lagomorph, it could compound climate-mediated threats to this species. Due to climate change, American pikas are predicted to experience significant upslope range retraction during this century. Using

Styles APA, Harvard, Vancouver, ISO, etc.

Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!