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Image Analysis in the Experimental Fracture Healing under Cyclic Loading 被引量:4
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作者 Zhang Jianguo et al. Dept Anatomy. BMU, Beijing 100083. Chin J Orth 《Chinese Medical Journal》 SCIE CAS CSCD 1995年第11期30-30,共1页
This experimental study was designed to evaluate the ef-fects of cyclic loading on the strength of healing fractures
关键词 image Analysis in the experimental Fracture Healing under Cyclic Loading
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Experimental investigation of ghost imaging of reflective objects with different surface roughness 被引量:5
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作者 SUQIN NAN YANFENG BAI +4 位作者 XIAOHUI SHI QIAN SHEN LIJIE QU HENGXING LI XIQUAN FU 《Photonics Research》 SCIE EI 2017年第4期372-376,共5页
We present an experimental demonstration of ghost imaging of reflective objects with different surface roughness.The influence of the surface roughness, the transverse size of the test detector, and the reflective ang... We present an experimental demonstration of ghost imaging of reflective objects with different surface roughness.The influence of the surface roughness, the transverse size of the test detector, and the reflective angle on the signal-to-noise ratio(SNR) is analyzed by measuring the second-order correlation of the light field based on classical statistical optics. It is shown that the SNR decreases with an increment of the surface roughness and the detector's transverse size or a decrease of the reflective angle. Additionally, the comparative studies between the rough object and the smooth one under the same conditions are also discussed. 展开更多
关键词 exp experimental investigation of ghost imaging of reflective objects with different surface roughness SNR test
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Experimental far-field imaging properties of high refractive index microsphere lens 被引量:4
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作者 Minglei Guo Yong-Hong Ye +1 位作者 Jinglei Hou Bintao Du 《Photonics Research》 SCIE EI 2015年第6期339-342,共4页
The far-field imaging properties of a high index microsphere lens spatially separated from the object are experimentally studied. Our experimental results show that, for a Blu-ray disk whose spacing is 300 nm, the hig... The far-field imaging properties of a high index microsphere lens spatially separated from the object are experimentally studied. Our experimental results show that, for a Blu-ray disk whose spacing is 300 nm, the high index microsphere lens also can discern the patterns of the object sample when the distance between the lens and the object is up to 5.4 μm. When the distance is increased from 0 to 5.4 μm, for the microsphere lens with a diameter of 24 μm, the lateral magnification increases from 3.5× to 5.5×, while the field of view decreases from 5.1 to 3.0 μm. By varying the distance between the lens and the object, the optical image can be optimized. We also indicate that the far-field imaging capability of a high index microsphere lens is dependent on the electromagnetic field intensityprofile of the photonic nanojet under different positions of the microsphere lens. 展开更多
关键词 experimental far-field imaging properties of high refractive index microsphere lens high
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Experimental assessment of a 3-D plenoptic endoscopic imaging system 被引量:1
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作者 Hanh N. D. Le Ryan Decker +1 位作者 Axel Krieger Jin U. Kang 《Chinese Optics Letters》 SCIE EI CAS CSCD 2017年第5期68-72,共5页
All endoscopic imaging system using a plenoptic technique to reconstruct 3-D information is demonstrated and analyzed in this Letter. The proposed setup integrates a clinical surgical endoscope with a plenoptic camera... All endoscopic imaging system using a plenoptic technique to reconstruct 3-D information is demonstrated and analyzed in this Letter. The proposed setup integrates a clinical surgical endoscope with a plenoptic camera to achieve a depth accuracy error of about 1 mm and a precision error of about 2 mm, within a 25 mm×25 mm field of view, operating at 11 frames per second. 展开更多
关键词 experimental assessment of a 3-D plenoptic endoscopic imaging system FOV MLA
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Liquid metal spring: oscillating coalescence and ejection of contacting liquid metal droplets 被引量:7
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作者 Bin Yuan Zhizhu He +2 位作者 Wenqiang Fang Xin Bao Jing Liu 《Science Bulletin》 SCIE EI CAS CSCD 2015年第6期648-653,M0004,共7页
With pretty high surface tension, the room temperature liquid metal may inherit with unexpected be- haviors that conventional fluids could not own. Here, we disclosed the coalescence and ejection phenomena of liquid m... With pretty high surface tension, the room temperature liquid metal may inherit with unexpected be- haviors that conventional fluids could not own. Here, we disclosed the coalescence and ejection phenomena of liquid metal droplets via high-speed camera. It was experimen- tally found that, when gently contacting (rather than col- liding) two metal droplets with identical size together in NaOH solution, oscillating coalescence would happen which runs just like a spring after the interface ruptures and forms capillary waves. For two metal droplets with evidently different diameters, the coalescence induces rather unusual ejection phenomena. The large droplet would swallow part of the small one and then eject another much smaller droplet. Such phenomenon provides a direct evidence for the existence of electrical double layer on metal droplets. The dynamics fluid impacting behaviors were quantified through processing images from the recorded movies, and the basic differences between the liquid metal droplets and that of water droplets were clar- ified. Theoretical mechanisms related to the events were preliminarily interpreted. The present finding refreshes the basic understanding of the liquid metal droplets, which also suggests potential values of applying such fundamental effects to characterize viscosity, surface tension, electrical double layer of the metal fluids and droplet formations. 展开更多
关键词 Liquid metal spring Oscillatingcoalescence Droplet ejection Electrical doublelayer High-speed image experiment
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