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61.
Javidi Sarafan Mahnaz Alizadeh Rasool Fattahi Abolfazl Valizadeh Ardalan Mostafa Karimi Nader 《Journal of Thermal Analysis and Calorimetry》2020,141(5):2145-2164
Journal of Thermal Analysis and Calorimetry - Transfer of heat and mass and thermodynamic irreversibilities are investigated in a porous, parallel-plate microreactor in which the working fluid is... 相似文献
62.
Three-dimensional synthetic aperture integral imaging 总被引:3,自引:0,他引:3
We propose synthetic aperture integral imaging, in which an effectively enlarged aperture (or field of view) is obtained by movement of small integral imaging system. This system substantially increases the field of view and the viewing resolution. The feasibility of our approach is experimentally demonstrated. To the best of our knowledge, this is the first time the synthetic aperture technique has been applied to three-dimensional integral imaging. 相似文献
63.
Three-dimensional integral imaging of micro-objects 总被引:1,自引:0,他引:1
We propose a method for displaying micro-objects in space that is based on three-dimensional (3D) integral imaging, in which elemental images are calculated from a two-dimensional sampling of the optical field along different depths by use of confocal scanning microscopy. Experimental results are presented to demonstrate that a uniformly magnified 3D biological specimen can be displayed in space, and thus integral imaging can be used for 3D display of confocal microscopy. To the best of our knowledge, this is the first report of 3D integral imaging of (semitransparent) micro-objects. 相似文献
64.
We evaluate improvements in information capacity gained by use of time-division multiplexing (TDM) in three-dimensional integral imaging (II) systems. This analysis supports the motivation for two TDM methods in II [Opt. Lett. 27, 324 (2002); 1144 (2002)] that we previously developed. 相似文献
65.
Securing information by use of digital holography 总被引:41,自引:0,他引:41
An information security method that uses a digital holographic technique is presented. An encrypted image is stored as a digital hologram. The decryption key is also stored as a digital hologram. The encrypted image can be electrically decrypted by use of the digital hologram of the key. This security technique provides secure storage and data transmission. Experimental results are presented to demonstrate the proposed method. 相似文献
66.
A polarimetric imaging method of a 3D object by use of on-axis phase-shifting digital holography is presented. The polarimetric image results from a combination of two kinds of holographic imaging using orthogonal polarized reference waves. Experimental demonstration of a 3D polarimetric imaging is presented. 相似文献
67.
High-resolution three-dimensional (3D) microscopic imaging requires the use of short wavelengths. Quantitative 3D imaging techniques, such as digital holographic microscopy, require interference between the object beam and a known reference background for the extraction of phase information. At shorter wavelengths, due to short coherence lengths, it may be difficult to implement a two-beam off-axis setup. Thus, a single-beam technique, which provides complete phase information, may be better suited for short wavelengths. This Letter describes the development of a quantitative microscopy technique at 193 nm using multiple intensity samplings and phase retrieval. 相似文献
68.
In this Letter, we present results for detecting and recognizing 3D objects in photon counting images using integral imaging with maximum average correlation height filters. We show that even under photon starved conditions objects may be automatically recognized in passively sensed 3D images using advanced correlation filters. We show that the proposed filter synthesized with ideal training images can detect and recognize a 3D object in photon counting images, even in the presence of occlusions and obscuration. 相似文献
69.
Fe3O4@SiO2‐imid‐PMAn Magnetic Porous Nanosphere as Reusable Catalyst for Synthesis of Polysubstituted Quinolines under Solvent‐free Conditions
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In this research, a facile one‐pot synthesis of poly‐substituted quinoline derivatives has been demonstrated by using 2‐aminobenzophenones and ethylacetoacetate or ketones in the presence of Fe3O4@SiO2‐imid‐PMAn and Fe3O4@SiO2‐imid‐PMAb nanoparticles as green and reusable catalysts under solvent‐free conditions. The reaction proceeds efficiently in excellent yields and in a state of excellent purity. The nanocatalysts can be recycled and reused for at least four times without noticeably decreasing in catalytic activity. 相似文献
70.
Hollow silica nanoparticles were prepared from Dy2O3@SiO2 core–shell nanocomposites, for the first time, by a simple ultrasonic assisted sol–gel method. The Dy2O3@SiO2 core–shell nanocomposites were prepared by the deposition of a SiO2 layer onto the surface of Dy2O3 nanoparticles using a three-step coating process. The hollow SiO2 nanostructures were obtained by selective removal of the Dy2O3 cores. The structure, morphology and composition of the products were determined by the techniques of X-ray diffraction, Fourier transfom infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. The results indicated that hollow SiO2 nanostructures were sphere-like shape with the average size of 20?nm and had an amorphous crystal structure. The important advantage of this process is the recyclability of the Dy2O3 nanoparticles as the starting material of the reaction. 相似文献