Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546144
E. Prokhorov, O. Botsula
1. The diodes of n+-n-n+ with tunnel or resonance-tunnel scopes possess negative differential conductivity (ODP) because of tunneling or resonance tunneling of electrons through the lateral scopes of diodes is showed. 2 The n+-n-n+ diodes with tunnel or resonance-tunnel scopes can be fabricated in a co-planar and in «sandwich» structures is showed. 3. I – V characteristics of n+-n-n+ diodes are analyzed taking into account tunnel or resonance-tunnel is have been analyzed. The region of negative differential conductivity is determined by parameters of tunnel and resonance-tunnel scopes, material of operating diode region and geometry of structure. 4. Large non-linearity of I – V characteristics of considered diodes at small bias voltage can be used for frequency multiplication in millimeter wave range.
{"title":"Negative differential conductivity of semiconductor diode with resonance-tunnel border","authors":"E. Prokhorov, O. Botsula","doi":"10.1109/MSMW.2010.5546144","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546144","url":null,"abstract":"1. The diodes of n+-n-n+ with tunnel or resonance-tunnel scopes possess negative differential conductivity (ODP) because of tunneling or resonance tunneling of electrons through the lateral scopes of diodes is showed. 2 The n+-n-n+ diodes with tunnel or resonance-tunnel scopes can be fabricated in a co-planar and in «sandwich» structures is showed. 3. I – V characteristics of n+-n-n+ diodes are analyzed taking into account tunnel or resonance-tunnel is have been analyzed. The region of negative differential conductivity is determined by parameters of tunnel and resonance-tunnel scopes, material of operating diode region and geometry of structure. 4. Large non-linearity of I – V characteristics of considered diodes at small bias voltage can be used for frequency multiplication in millimeter wave range.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128731727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546001
V. Kravchenko, O. Kravchenko, A. Safin
Nonlinear Schrodinger equation is used to describe wave processes in many areas of physics [1–4] such as quantum mechanics, nonlinear optics, theory of solitons, biophysics. There are many different methods and numerical algorithms to approximation solutions of nonlinear Schrodinger equations [5] from simple giving satisfactory results over a sufficiently large number of operations to complex. At present solutions of boundary value problems of mathematical physics [6–12] are widely used theory of atomic functions (AF). This solution is represent as a sum of shift-scaled AF families. AFs are infinitely differentiable functions and solutions of functional differential equations (FDE). They stay an intermediate position between the splines and trigonometric and algebraic polynomials. They are smoother than splines but less smooth than the polynomial. In this work we construct AFs shift-contraction of which constitutes the solution of Schrodinger equations. On the first stage the operator method [4] solution of FDE is considered. On the second step AF building of N-variables generated by the Schrodinger equation is carried out.
非线性薛定谔方程在许多物理领域被用来描述波动过程[1-4]，如量子力学、非线性光学、孤子理论、生物物理学。有许多不同的方法和数值算法来逼近非线性薛定谔方程[5]的解，从简单的在足够多的操作上给出满意的结果到复杂的。目前广泛应用的数学物理边值问题解[6-12]是原子函数理论(theory of atomic functions, AF)。该解表示为移位缩放AF族的和。泛函微分方程是无穷可微函数和泛函微分方程的解。它们处于样条函数、三角多项式和代数多项式之间的中间位置。它们比样条曲线平滑，但不如多项式平滑。在这项工作中，我们构造了构成薛定谔方程解的位移收缩函数。第一阶段考虑FDE的算子法[4]解。第二步，对由薛定谔方程生成的n个变量进行AF的建立。
{"title":"A new construction of solution of Schrodinger equation on the basis of atomic functions","authors":"V. Kravchenko, O. Kravchenko, A. Safin","doi":"10.1109/MSMW.2010.5546001","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546001","url":null,"abstract":"Nonlinear Schrodinger equation is used to describe wave processes in many areas of physics [1–4] such as quantum mechanics, nonlinear optics, theory of solitons, biophysics. There are many different methods and numerical algorithms to approximation solutions of nonlinear Schrodinger equations [5] from simple giving satisfactory results over a sufficiently large number of operations to complex. At present solutions of boundary value problems of mathematical physics [6–12] are widely used theory of atomic functions (AF). This solution is represent as a sum of shift-scaled AF families. AFs are infinitely differentiable functions and solutions of functional differential equations (FDE). They stay an intermediate position between the splines and trigonometric and algebraic polynomials. They are smoother than splines but less smooth than the polynomial. In this work we construct AFs shift-contraction of which constitutes the solution of Schrodinger equations. On the first stage the operator method [4] solution of FDE is considered. On the second step AF building of N-variables generated by the Schrodinger equation is carried out.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134200352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5545996
E. Miranda
When a metal-oxide-semiconductor (MOS) structure is subjected to electrical stress, traps or defects are progressively generated within the insulator and at the interfaces, a process that eventually leads to the formation of a filamentary path across the gate dielectric. This is the signature of dielectric breakdown and is a major reliability issue for MOSFET devices. The problem is that not all the gate stacks break down in the same way so that a detailed analysis for each particular system is required. Although the failure statistics of thin oxide layers has been shown to be consistent with percolation models of defects generation, much less is known about the physics of post-breakdown conduction. In the last decade, several models based on mechanisms such as variable range hopping, tunneling, percolation and quantum point contact conduction have been proposed to explain the electron transport through the oxide layer under such circumstances. In this presentation, we will review the physics associated with these models starting from basic oxide reliability analysis. Some circuit implications of broken down devices and current applications such as the resistive switching effect will also be discussed.
{"title":"Reliability, degradation and breakdown of advanced gate stacks","authors":"E. Miranda","doi":"10.1109/MSMW.2010.5545996","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5545996","url":null,"abstract":"When a metal-oxide-semiconductor (MOS) structure is subjected to electrical stress, traps or defects are progressively generated within the insulator and at the interfaces, a process that eventually leads to the formation of a filamentary path across the gate dielectric. This is the signature of dielectric breakdown and is a major reliability issue for MOSFET devices. The problem is that not all the gate stacks break down in the same way so that a detailed analysis for each particular system is required. Although the failure statistics of thin oxide layers has been shown to be consistent with percolation models of defects generation, much less is known about the physics of post-breakdown conduction. In the last decade, several models based on mechanisms such as variable range hopping, tunneling, percolation and quantum point contact conduction have been proposed to explain the electron transport through the oxide layer under such circumstances. In this presentation, we will review the physics associated with these models starting from basic oxide reliability analysis. Some circuit implications of broken down devices and current applications such as the resistive switching effect will also be discussed.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134051211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546045
V. Yurchenko, M. Gradziel, J. Murphy
This work is concerned with design, manufacturing and testing of enhanced dual-layer grid polarizers for millimeter (MM) and sub-millimeter (sub-MM) electromagnetic waves. Enhanced MM and sub-MM wave (THz) polarizers are needed in astrophysics (detection of polarization of Cosmic Microwave Background at the level of about −80 dB), polarization interferometry, remote sensing, etc.
{"title":"Dual-layer grid polarizers for MM and sub-MM waves: Theory and experiment","authors":"V. Yurchenko, M. Gradziel, J. Murphy","doi":"10.1109/MSMW.2010.5546045","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546045","url":null,"abstract":"This work is concerned with design, manufacturing and testing of enhanced dual-layer grid polarizers for millimeter (MM) and sub-millimeter (sub-MM) electromagnetic waves. Enhanced MM and sub-MM wave (THz) polarizers are needed in astrophysics (detection of polarization of Cosmic Microwave Background at the level of about −80 dB), polarization interferometry, remote sensing, etc.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"169 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133587303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546156
G. Khlopov, R. Knoechel, A. Linkova, A. Tepljuk, K. Schuenemann
In this paper the possibilities of application for double frequency remote sensing of solid aerosols are considered in the case of polydisperse medium. Use of double frequency sounding permits to evaluate effective aerosols parameters with satisfactory accuracy for “narrow” Δr̄ ≤ 0,3 and “wide” Δr̄ ≥ 4 distribution law. The experiments with calibrated sand particles with “narrow” distribution law (as aerosols model) confirm the possibility of satisfactory evaluation of aerosol parameters.
{"title":"Application of double frequency radar for measurement of parameters of solid polydisperse aerosols","authors":"G. Khlopov, R. Knoechel, A. Linkova, A. Tepljuk, K. Schuenemann","doi":"10.1109/MSMW.2010.5546156","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546156","url":null,"abstract":"In this paper the possibilities of application for double frequency remote sensing of solid aerosols are considered in the case of polydisperse medium. Use of double frequency sounding permits to evaluate effective aerosols parameters with satisfactory accuracy for “narrow” Δr̄ ≤ 0,3 and “wide” Δr̄ ≥ 4 distribution law. The experiments with calibrated sand particles with “narrow” distribution law (as aerosols model) confirm the possibility of satisfactory evaluation of aerosol parameters.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133014932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546022
E. Velichko, A. Nickolaenko
The numerical model was constructed of the plane wave diffraction by a circular cylinder of infinite length based on the classic solution in form of Bessel functions expansion. The spatial field distribution was constructed for the four characteristic frequencies in the case of the E-polarization of incident radio wave. The lower couple of them corresponds to the first maximum and minimum in the complete field observed at the backside of cylinder. Two higher frequencies are related to the field maximum and minimum at the same point at frequency about 100 GHz. Spatial distribution of the full field amplitude was compared for the cases of metallic, dielectric, and meta-material cylinders. Physical interpretation of effects is given.
{"title":"Modeling of plane electromagnetic wave scattering by dielectric and meta-material cylinders","authors":"E. Velichko, A. Nickolaenko","doi":"10.1109/MSMW.2010.5546022","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546022","url":null,"abstract":"The numerical model was constructed of the plane wave diffraction by a circular cylinder of infinite length based on the classic solution in form of Bessel functions expansion. The spatial field distribution was constructed for the four characteristic frequencies in the case of the E-polarization of incident radio wave. The lower couple of them corresponds to the first maximum and minimum in the complete field observed at the backside of cylinder. Two higher frequencies are related to the field maximum and minimum at the same point at frequency about 100 GHz. Spatial distribution of the full field amplitude was compared for the cases of metallic, dielectric, and meta-material cylinders. Physical interpretation of effects is given.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116108815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546093
A. Michtchenko, M. Hernández-Vizuet
Recently microwaves and laser radiation have been applied to activate the growth processes of biological systems [1–4]. Sae Shimizu-Sato et al [3] developed a gene promoter system that can be activated using short pulses of red light and can be deactivated using short pulses of infrared light, but the properties of the light and the pulses to activate the system were not specified. From previous publications [4–7] it is possible to observe that the wavelength, the intensity and the exposition time are the most important parameters to produce activation of biological systems.
{"title":"Application of infrared-pulsed laser radiation with wavelength L=904nm to stimulate the growth of wheat seeds","authors":"A. Michtchenko, M. Hernández-Vizuet","doi":"10.1109/MSMW.2010.5546093","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546093","url":null,"abstract":"Recently microwaves and laser radiation have been applied to activate the growth processes of biological systems [1–4]. Sae Shimizu-Sato et al [3] developed a gene promoter system that can be activated using short pulses of red light and can be deactivated using short pulses of infrared light, but the properties of the light and the pulses to activate the system were not specified. From previous publications [4–7] it is possible to observe that the wavelength, the intensity and the exposition time are the most important parameters to produce activation of biological systems.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116584751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546193
A. V. Dormidontov, Y. Filipov, Y. Prokopenko
Now an attention is given to spherical dielectric resonator with a whispering gallery modes that have large values of the polar n and azimuthal m indices. The weak radiation of eigenmodes energy from a resonator is explained by full internal reflection of forming waves from a smooth spherical surface. Theoretical researches of fields' distributions and energies of forced modes in dielectric sphere are of interest at different methods of its excitations. The paper object is the electrodynamical study of forced modes in spherical dielectric resonator that is excited by an azimuthally periodical electrical current flowed along circle in equatorial plane of sphere.
{"title":"Excitation of spherical dielectric resonator by ring periodical current","authors":"A. V. Dormidontov, Y. Filipov, Y. Prokopenko","doi":"10.1109/MSMW.2010.5546193","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546193","url":null,"abstract":"Now an attention is given to spherical dielectric resonator with a whispering gallery modes that have large values of the polar n and azimuthal m indices. The weak radiation of eigenmodes energy from a resonator is explained by full internal reflection of forming waves from a smooth spherical surface. Theoretical researches of fields' distributions and energies of forced modes in dielectric sphere are of interest at different methods of its excitations. The paper object is the electrodynamical study of forced modes in spherical dielectric resonator that is excited by an azimuthally periodical electrical current flowed along circle in equatorial plane of sphere.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124220804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546027
N. M. Makarov, A. Paredes-Juárez, F. Díaz-Monge, F. Pérez-Rodríguez
The effect of spatial dispersion and size-effect in the electrodynamics of metallic slabs, having been studied with the formalism of the Boltzmann kinetic equation, turns out to be qualitatively different from that predicted by the widely-used Drude-Lorentz model. In particular, within the high-frequency region, the absorption oscillates as a function of wave frequency and sample thickness. Besides, the absorption becomes sensitive to the value of the electron Fermi velocity and nontrivially depends on the electron relaxation rate. The results may be very useful for the analysis of the electromagnetic response of metal-dielectric micro- and nanostructures in the terahertz and/or infrared frequency range.
{"title":"Is the Drude-Lorentz model adequate for a metallic slab within terahertz/infrared frequency range?","authors":"N. M. Makarov, A. Paredes-Juárez, F. Díaz-Monge, F. Pérez-Rodríguez","doi":"10.1109/MSMW.2010.5546027","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546027","url":null,"abstract":"The effect of spatial dispersion and size-effect in the electrodynamics of metallic slabs, having been studied with the formalism of the Boltzmann kinetic equation, turns out to be qualitatively different from that predicted by the widely-used Drude-Lorentz model. In particular, within the high-frequency region, the absorption oscillates as a function of wave frequency and sample thickness. Besides, the absorption becomes sensitive to the value of the electron Fermi velocity and nontrivially depends on the electron relaxation rate. The results may be very useful for the analysis of the electromagnetic response of metal-dielectric micro- and nanostructures in the terahertz and/or infrared frequency range.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130491603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-06-21DOI: 10.1109/MSMW.2010.5546149
A. Varavin, G. Ermak, A. Vasilev, A. Yevdokymov, V. V. Kryzhanovskiy
The principals of range resolution improvement the self-mixing FMCW radar based on analysis of the spectrum of high-order harmonics of intermediate frequency is proposed. Developed the scheme and investigated the model of Ka-band surveillance self-mixing FMCW radar with digital control and spectral processing of receiving signal. Advantages of this radar are small size, low power consumption and use of scanning antenna.
{"title":"Improvement of range resolution of FMCW autodyne radar","authors":"A. Varavin, G. Ermak, A. Vasilev, A. Yevdokymov, V. V. Kryzhanovskiy","doi":"10.1109/MSMW.2010.5546149","DOIUrl":"https://doi.org/10.1109/MSMW.2010.5546149","url":null,"abstract":"The principals of range resolution improvement the self-mixing FMCW radar based on analysis of the spectrum of high-order harmonics of intermediate frequency is proposed. Developed the scheme and investigated the model of Ka-band surveillance self-mixing FMCW radar with digital control and spectral processing of receiving signal. Advantages of this radar are small size, low power consumption and use of scanning antenna.","PeriodicalId":129834,"journal":{"name":"2010 INTERNATIONAL KHARKOV SYMPOSIUM ON PHYSICS AND ENGINEERING OF MICROWAVES, MILLIMETER AND SUBMILLIMETER WAVES","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129718971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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