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PCCPwww
... The study of this catalytic process deserves a great deal of practical interest, as nitric oxides are known to be a major cause of air pollution. For this reason, Cu-ZSM-5 and other copper-exchanged molecular sieves have been the subject of many papers having appeared in recent years. Most of the da ...
... The study of this catalytic process deserves a great deal of practical interest, as nitric oxides are known to be a major cause of air pollution. For this reason, Cu-ZSM-5 and other copper-exchanged molecular sieves have been the subject of many papers having appeared in recent years. Most of the da ...
Correlation of natural muscovite exfoliation with
... of CH2 stretching vibration and especially scissoring and rocking bands in Fig. 2. In addition the peaks in OTA-M750-5, OTAM750-6 and OTA-M750-7 jumped to lower angle compared to those of other OTA-M750-s in Fig. 3, suggesting a large increase of the basal spacing. This was probably because that Li+ ...
... of CH2 stretching vibration and especially scissoring and rocking bands in Fig. 2. In addition the peaks in OTA-M750-5, OTAM750-6 and OTA-M750-7 jumped to lower angle compared to those of other OTA-M750-s in Fig. 3, suggesting a large increase of the basal spacing. This was probably because that Li+ ...
Far-infrared-driven electron-hole correlations in a quantum dot with an internal... Roger Sakhel, Lars Jo¨nsson, and John W. Wilkins
... of excitons in a variety of dots via their sharp spectral features.27–33 For example, individual InAs quantum dots embedded in GaAs have been investigated using optical spectroscopy at different temperatures and excitation intensities.21 The effect of changing the intersublevel spacing in self-assem ...
... of excitons in a variety of dots via their sharp spectral features.27–33 For example, individual InAs quantum dots embedded in GaAs have been investigated using optical spectroscopy at different temperatures and excitation intensities.21 The effect of changing the intersublevel spacing in self-assem ...
Virtual ChemLab Record Sheets
... The characteristic yellow of a candle flame comes from the glow of burning carbon fragments. The carbon fragments are produced by the incomplete combustion reaction of the wick and candle wax. When elements, such as carbon, are heated to high temperatures, some of their electrons are excited to high ...
... The characteristic yellow of a candle flame comes from the glow of burning carbon fragments. The carbon fragments are produced by the incomplete combustion reaction of the wick and candle wax. When elements, such as carbon, are heated to high temperatures, some of their electrons are excited to high ...
IASI level 0 and 1 processing algorithms description
... allows the co-registration of IASI sounding with AVHRR images. A moving mirror with 30 scan positions provides a swath of about 2000 km (120 spectra for each 8 seconds). The interferograms are processed by an on-board digital processing subsystem which performs the inverse Fourier transform and the ...
... allows the co-registration of IASI sounding with AVHRR images. A moving mirror with 30 scan positions provides a swath of about 2000 km (120 spectra for each 8 seconds). The interferograms are processed by an on-board digital processing subsystem which performs the inverse Fourier transform and the ...
Atom-photon interactions
... the internal state of the atoms may be affected by Casimir effects between the atom and material surfaces. In this case, the free space decay rate γ0 becomes Γ0 , which may be larger or smaller than γ0 depending on the surrounding environment. We note that this effect of modification to γ0 involves ...
... the internal state of the atoms may be affected by Casimir effects between the atom and material surfaces. In this case, the free space decay rate γ0 becomes Γ0 , which may be larger or smaller than γ0 depending on the surrounding environment. We note that this effect of modification to γ0 involves ...
Fabrication of submicrometer 3D structures by one
... (a) Cross section through the middle of the photonic crystal microcavity. A defect is formed in the 2D photonic crystal by removing a single hole, thus forming an energy well for photons similar to that for electrons in a quantum wire structure. Photons are also localized vertically by TIR at the ai ...
... (a) Cross section through the middle of the photonic crystal microcavity. A defect is formed in the 2D photonic crystal by removing a single hole, thus forming an energy well for photons similar to that for electrons in a quantum wire structure. Photons are also localized vertically by TIR at the ai ...
Clays form a class of technologically important - Eu
... was plunged in water and then dried at room temperature for one day. Samples were fired in oxidant atmosphere at different temperatures: 600, 700, 800, 900, 1000 and 1100 °C, in a kiln of a ceramist’s workshop. After an 8-hour heating cycle, the temperature was kept constant for 2 hours at the final ...
... was plunged in water and then dried at room temperature for one day. Samples were fired in oxidant atmosphere at different temperatures: 600, 700, 800, 900, 1000 and 1100 °C, in a kiln of a ceramist’s workshop. After an 8-hour heating cycle, the temperature was kept constant for 2 hours at the final ...
The structure of strontium-doped hydroxyapatite
... (ESRF). The incident X-ray energy was 89.5 keV. Debye rings were collected with a two-dimensional MAR345 image plate with a diameter of 345 mm (2300 × 2300 pixels). In order to increase the instrumental resolution and the number of reflections, the sample was placed at 1150 and 950 mm relative to th ...
... (ESRF). The incident X-ray energy was 89.5 keV. Debye rings were collected with a two-dimensional MAR345 image plate with a diameter of 345 mm (2300 × 2300 pixels). In order to increase the instrumental resolution and the number of reflections, the sample was placed at 1150 and 950 mm relative to th ...
Full-Text PDF
... increased. The XRD results do not show that the sample was a hydrated salt with other impurities present as well. Therefore, water molecules and impurities might already have been removed at this temperature. At 800 °C, the XRD result for the sample indicates that the aluminum sulfate phase was pres ...
... increased. The XRD results do not show that the sample was a hydrated salt with other impurities present as well. Therefore, water molecules and impurities might already have been removed at this temperature. At 800 °C, the XRD result for the sample indicates that the aluminum sulfate phase was pres ...
Chapter 1. Some experimental facts
... Some objections to formula (19) can be raised. Some of them were raised at the end of the 19 th century , at a time when atomic physics was in a rudimentary stage and special relativity had not been formulated. These objections are still today repeated with no afterthought , see for example Ref 1 , ...
... Some objections to formula (19) can be raised. Some of them were raised at the end of the 19 th century , at a time when atomic physics was in a rudimentary stage and special relativity had not been formulated. These objections are still today repeated with no afterthought , see for example Ref 1 , ...
Single Atoms Preparation Using Light-Assisted Collisions
... systems and improved the level of control of such systems tremendously. This has led to the idea of using the knowledge and control tools to develop new technologies based on quantum physics as part of the second quantum revolution. One of these important future quantum based technologies is quantum ...
... systems and improved the level of control of such systems tremendously. This has led to the idea of using the knowledge and control tools to develop new technologies based on quantum physics as part of the second quantum revolution. One of these important future quantum based technologies is quantum ...
Acousto-Optic Devices and Applications
... variety of optical devices that perform spatial, temporal, and spectral modulations of light. These devices have been used in optical systems for light-beam control and signalprocessing applications. Historically, the diffraction of light by acoustic waves was first predicted by Brillouin1 in 1922. ...
... variety of optical devices that perform spatial, temporal, and spectral modulations of light. These devices have been used in optical systems for light-beam control and signalprocessing applications. Historically, the diffraction of light by acoustic waves was first predicted by Brillouin1 in 1922. ...
manipulating single atoms - Quantum technologies
... by the time available for radiation pressure deceleration, the trapping rate is dramatically reduced by small laser beam diameters (≈1 mm) and strong field gradients (up to several 100 G/cm) [19], and of course, very low partial pressure (<10−14 mbar) of the trapped atomic species. Very low residual ...
... by the time available for radiation pressure deceleration, the trapping rate is dramatically reduced by small laser beam diameters (≈1 mm) and strong field gradients (up to several 100 G/cm) [19], and of course, very low partial pressure (<10−14 mbar) of the trapped atomic species. Very low residual ...
1 L5: Diffraction L5 DIFFRACTION Objectives Aims From this
... known as Fresnel diffraction, can be mathematically very complex. However, calculations are greatly simplified if both the source and the screen are at very large distances from the aperture (i.e. if those distances are much greater than the diameter of the aperture). We will deal quantitatively onl ...
... known as Fresnel diffraction, can be mathematically very complex. However, calculations are greatly simplified if both the source and the screen are at very large distances from the aperture (i.e. if those distances are much greater than the diameter of the aperture). We will deal quantitatively onl ...
Manipulation of two-level quantum systems with narrow transition
... more complicated schemes of laser cooling as well. With more complex schemes, both the Doppler, T D 5 \G/(2k B ), and the recoil, T R 5 (\k L ) 2 /(Mk B ), limits for the laser (one-dimensional) cooling can be overcome (see, for example, Refs. 9 and 10). In these formulas G is the spontaneous emissi ...
... more complicated schemes of laser cooling as well. With more complex schemes, both the Doppler, T D 5 \G/(2k B ), and the recoil, T R 5 (\k L ) 2 /(Mk B ), limits for the laser (one-dimensional) cooling can be overcome (see, for example, Refs. 9 and 10). In these formulas G is the spontaneous emissi ...
Optical coherence tomography (OCT): a review
... OCDR was developed originally for finding faults in fiberoptic cables and network components, its ability to probe the eye [8]–[10] and other biological tissues [11], [12] was soon recognized. The superb optical sectioning ability of OCT, which is achieved by exploiting the short temporal coherence ...
... OCDR was developed originally for finding faults in fiberoptic cables and network components, its ability to probe the eye [8]–[10] and other biological tissues [11], [12] was soon recognized. The superb optical sectioning ability of OCT, which is achieved by exploiting the short temporal coherence ...
Microscopic Probing and Manipulation of Ultracold
... the spatially resolved measurements reveal local information about thermodynamic quantities such as the level of quantum degeneracy and the compressibility. Using the predictions of the fluctuation-dissipation theorem, a novel fluctuation-based method for thermometry in atomic Fermi gases is realize ...
... the spatially resolved measurements reveal local information about thermodynamic quantities such as the level of quantum degeneracy and the compressibility. Using the predictions of the fluctuation-dissipation theorem, a novel fluctuation-based method for thermometry in atomic Fermi gases is realize ...
PDF file - Physics & Astronomy
... Springer Science+Business Media Dordrecht 2013 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on ...
... Springer Science+Business Media Dordrecht 2013 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on ...
“Superluminal” Pulse Propagation Dynamics by George M. Gehring
... experience, and a test of one’s resolve and limitations. However, it would be a pursuit doomed to failure without a great deal of assistance; an individual achievement made possible only through the contributions of many. I gratefully acknowledge the help of those individuals who have contributed to ...
... experience, and a test of one’s resolve and limitations. However, it would be a pursuit doomed to failure without a great deal of assistance; an individual achievement made possible only through the contributions of many. I gratefully acknowledge the help of those individuals who have contributed to ...
X-ray fluorescence
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X-ray fluorescence (XRF) is the emission of characteristic ""secondary"" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.