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| 1 | Experimental far-field imaging properties of high refractive index microsphere lens显示文摘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. | Minglei Guo Yong-Hong Ye Jinglei Hou Bintao Du | 2015 | Photonics Research2015，3，6： | 3 |
| 2 | Tests for Hangging Steel Specimens in seawter显示文摘 | Baorong Hou Jizhou Duan Jinglei Zhang | 2002 | MP2002，41，10： | 1 |
| 3 | Synthesis and Photoluminescence Enhancement of Silver Nanoparticles Decorated Porous Anodic Alumina显示文摘Silver nanoparticles(Ag NPs) were successfully assembled in porous anodic alumina(AAO) templates via a green silver mirror reaction.The Ag NPs/AAO composite templates then were characterized by field emission scanning electron microscopy(FESEM),energy-dispersive X-ray microanalysis(EDX),and X-ray diffraction(XRD).Furthermore,the photoluminescence(PL) properties were also investigated.Compared with the blank AAO,the PL intensity of Ag NPs/AAO templates are enhanced and the maximum enhancement is 2.58 times.Based on the local electric field enhancement effect,the theoretical values were also deduced,which are basically coincident with the experimental. | Song Ye Yidong Hou Renyi Zhu Shulong Gu Jingquan Wang Zhiyou Zhang Sha Shi Jinglei Du | 2011 | Journal of Materials Science & Technology2011，27，2： | 1 |
| 4 | Tests for Hanging Steel Specimens in Seawater 显示文摘 | Baorong Hou Jizhou Duan Jinglei Zhang | 2002 | MP2002，41，10： | 1 |
| 5 | Tests for hanging steel specimens in seawater 显示文摘 | Hou Baorong Duan Jizhou Zhang Jinglei | 2002 | MP2002，41，10： | 1 |
| 6 | Test s for Hang- ing Steel Specimens in Seawater显示文摘 | Baorong Hou Jizhou Duan Jinglei Zhang | 2002 | MP2002，41，10： | 1 |
| 7 | Tests for Hanging Steel Specimens in Seawater显示文摘 | Baorong Hou Jizhou Duan Jinglei Zhang | 2002 | MP2002，41，10： | 1 |
| 8 | Grey inter relation analysis of alloy elements and steel corrosion显示文摘 | Jinglei Zhang Baorong Hou Yanliang Huang | 2000 | Materials and Corrosion2000，51，7： | 1 |
| 9 | High-static-low-dynamic stiffness isolator based on an electromagnetic negative stiffness spring with long linear stroke显示文摘Negative stiffness mechanisms can improve low-frequency vibration isolation performance and have been widely used in the vibration isolation of precision equipment. However, the negative stiffness mechanism usually introduces a nonlinear stiffness,resulting in a nonlinear response and worsening the vibration isolation performance, especially under large amplitude vibration.In this paper, an electromagnetic spring with linear negative stiffness(ESLNS) is proposed, in which the antagonistic ampere forces of the energized coils are used to generate negative stiffness within a long linear stroke. The magnetic field distribution is improved through the design of the magnetic circuit, thereby increasing the stiffness generation efficiency. The stiffness can be adjusted bidirectionally by current within the range of positive and negative stiffness. An electromagnetic stiffness model was established based on the equivalent magnetic circuit method. Experimental measurements verified the accuracy of the model and proved the linearity of the electromagnetic spring. A vibration isolator with high static and low dynamic stiffness(HSLDS) based on the ESLNS is designed and tested. The experimental results prove that the introduction of the ESLNS can effectively expand the isolation frequency band without changing the equilibrium position. Moreover, the vibration isolator with ESLNS does not produce nonlinear response. The proposed electromagnetic spring with linear negative stiffness extends the application range of HSLDS isolators to a large amplitude vibration environment. | YUAN ShuJin WU YaJun SONG DaiPing PU HuaYan MOU LiSheng HOU Lei ZHAO JingLei LI XuePing LUO Jun WU Jie HUANG XiaoXu | 2024 | Science China(Technological Sciences)2024，67，3： | 0 |
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