The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform
Rui Yang - One of the best experts on this subject based on the ideXlab platform.
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Fundamental modal properties of SRR metamaterials and metamaterial based waveguiding structures
Optics Express, 2009Co-Authors: Rui Yang, Yong-jun Xie, Xiaodong Yang, Rui Wang, Botao ChenAbstract:A rigorous full wave analysis of bianisotropic split ring resonator (SRR) metamaterials is presented for different electromagnetic field polarization and propagation directions. An alternative physical explanation is gained by revealing the fact that imaginary wave number leads to the SRR resonance. Metamaterial based parallel plate waveguide and rectangular waveguide are then examined to explore the resonance response to transverse magnetic and transverse electric waves. It is shown that different dispersion properties, such as non-cutoff frequency mode propagation and enhanced bandwidth of single mode operation, become into existence under certain circumstances. In addition, salient dispersion properties are imparted to non-radiative dielectric waveguides and H waveguides by uniaxial bianisotropic SRR metamaterials. Both Longitudinal-Section magnetic and Longitudinal-Section electric modes are capable of propagating very slowly due to metamaterial bianisotropic effects. Particularly, the abnormal falling behavior of some higher-order modes, eventually leading to the leakage, may appear when metamaterials are double negative. Fortunately, for other modes, leakage can be reduced due to the magnetoelectric coupling. When the metamaterials are of single negative parameters, leakage elimination can be achieved.
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Slow wave propagation in nonradiative dielectric waveguides with bianisotropic split ring resonator metamaterials
Infrared Physics & Technology, 2008Co-Authors: Rui Yang, Yong-jun Xie, J. JiangAbstract:Different dispersion properties are imparted to nonradiative dielectric (NRD) waveguides by split ring resonator metamaterials. Both Longitudinal Section magnetic and Longitudinal Section electric modes are capable of propagating very slowly due to the metamaterial bianisotropic effects, and can even approach zero velocity under certain condition. Enhanced energy flow in the considered structure is also demonstrated. Finally, miniaturization of NRD waveguide based on these unusual properties is proposed.
Botao Chen - One of the best experts on this subject based on the ideXlab platform.
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Fundamental modal properties of SRR metamaterials and metamaterial based waveguiding structures
Optics Express, 2009Co-Authors: Rui Yang, Yong-jun Xie, Xiaodong Yang, Rui Wang, Botao ChenAbstract:A rigorous full wave analysis of bianisotropic split ring resonator (SRR) metamaterials is presented for different electromagnetic field polarization and propagation directions. An alternative physical explanation is gained by revealing the fact that imaginary wave number leads to the SRR resonance. Metamaterial based parallel plate waveguide and rectangular waveguide are then examined to explore the resonance response to transverse magnetic and transverse electric waves. It is shown that different dispersion properties, such as non-cutoff frequency mode propagation and enhanced bandwidth of single mode operation, become into existence under certain circumstances. In addition, salient dispersion properties are imparted to non-radiative dielectric waveguides and H waveguides by uniaxial bianisotropic SRR metamaterials. Both Longitudinal-Section magnetic and Longitudinal-Section electric modes are capable of propagating very slowly due to metamaterial bianisotropic effects. Particularly, the abnormal falling behavior of some higher-order modes, eventually leading to the leakage, may appear when metamaterials are double negative. Fortunately, for other modes, leakage can be reduced due to the magnetoelectric coupling. When the metamaterials are of single negative parameters, leakage elimination can be achieved.
Zeng Bi-jua - One of the best experts on this subject based on the ideXlab platform.
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Postoperative nursing experiences of improved Longitudinal Section transverse suture operation in the treatment of chronic anal fissure
Hainan Medical Journal, 2013Co-Authors: Zeng Bi-juaAbstract:Objective To study the clinical effect of improved Longitudinal Section transverse suture operation and postoperative nursing in the treatment of chronic anal fissure. Methods Fifty patients of chronic anal fissure patients were randomly divided into the control group and the observation group. The control group applied open lateral internal sphincterotomy, while the study group employed improved Longitudinal Section transverse suture operation. The therapeutic efficacy, and nursing effect, surgery and postoperative follow-up situation were analyzed in the two groups. Results The total effective rate of the control group was 64%, significantly lower than that in the observation group (92%), P0.05. The observation group was significantly superior to the control group in postoperative pain, time of incision healing, infection situation, with statistically significant difference (P0.05). The observation group was significantly superior in the incidence of complications (P0.05).Conclusion For treating chronic anal fissure, improved Longitudinal Section transverse suture operation and comprehensive nursing measures can result in good therapeutic efficacy, good healing of incision, less infections, which is worthy to be extended in clinical practice.
Jungmi Hong - One of the best experts on this subject based on the ideXlab platform.
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Uniform Long-Slit Microwave Plasma Generation From a Longitudinal-Section Electric Mode Coupling
IEEE Transactions on Plasma Science, 2006Co-Authors: Hae Jin Kim, J.j. Choi, Jungmi HongAbstract:A stable uniform long-slit atmospheric argon plasma is produced by coupling a Longitudinal-Section electric (LSE) mode in a dielectric-loaded rectangular waveguide. The microwave-induced plasma discharge system consists of a 2.45-GHz microwave source, a circulator, a three-stub tuner, a transformer, and a tapered rectangular waveguide loaded with two dielectric slabs. A uniform 98-mm-long atmospheric argon plasma is observed at a relatively low microwave power level of 350 W and a gas flow rate of 10-15 L/min
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Uniform and long-slit microwave plasma generation from a Longitudinal Section electric mode coupling
The 33rd IEEE International Conference on Plasma Science 2006. ICOPS 2006. IEEE Conference Record - Abstracts., 2006Co-Authors: Hae Jin Kim, J.j. Choi, Jungmi HongAbstract:Summary form only given. A stable uniform, long-slit atmospheric argon plasma is produced by coupling a Longitudinal Section electric (LSE) mode in a dielectric loaded rectangular waveguide. The microwave-induced plasma discharge system consists of a 2.45 GHz microwave source, circulator, 3-stub tuner, transformer, and tapered rectangular waveguide loaded with two dielectric slabs. A uniform 98 mm long atmospheric argon plasma is observed at a relatively low microwave power level of 350 W and gas flow rate of I0-15 liters per minute
Yong-jun Xie - One of the best experts on this subject based on the ideXlab platform.
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Fundamental modal properties of SRR metamaterials and metamaterial based waveguiding structures
Optics Express, 2009Co-Authors: Rui Yang, Yong-jun Xie, Xiaodong Yang, Rui Wang, Botao ChenAbstract:A rigorous full wave analysis of bianisotropic split ring resonator (SRR) metamaterials is presented for different electromagnetic field polarization and propagation directions. An alternative physical explanation is gained by revealing the fact that imaginary wave number leads to the SRR resonance. Metamaterial based parallel plate waveguide and rectangular waveguide are then examined to explore the resonance response to transverse magnetic and transverse electric waves. It is shown that different dispersion properties, such as non-cutoff frequency mode propagation and enhanced bandwidth of single mode operation, become into existence under certain circumstances. In addition, salient dispersion properties are imparted to non-radiative dielectric waveguides and H waveguides by uniaxial bianisotropic SRR metamaterials. Both Longitudinal-Section magnetic and Longitudinal-Section electric modes are capable of propagating very slowly due to metamaterial bianisotropic effects. Particularly, the abnormal falling behavior of some higher-order modes, eventually leading to the leakage, may appear when metamaterials are double negative. Fortunately, for other modes, leakage can be reduced due to the magnetoelectric coupling. When the metamaterials are of single negative parameters, leakage elimination can be achieved.
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Slow wave propagation in nonradiative dielectric waveguides with bianisotropic split ring resonator metamaterials
Infrared Physics & Technology, 2008Co-Authors: Rui Yang, Yong-jun Xie, J. JiangAbstract:Different dispersion properties are imparted to nonradiative dielectric (NRD) waveguides by split ring resonator metamaterials. Both Longitudinal Section magnetic and Longitudinal Section electric modes are capable of propagating very slowly due to the metamaterial bianisotropic effects, and can even approach zero velocity under certain condition. Enhanced energy flow in the considered structure is also demonstrated. Finally, miniaturization of NRD waveguide based on these unusual properties is proposed.
