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Thermoregulation System for Biosensors Based on Field-Effect Transistors with a Nanowire Channel 基于纳米线通道场效应晶体管的生物传感器温度调节系统
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-04-01 DOI: 10.3103/S0027134924700061
G. V. Nibudin, I. I. Tsiniaikin, G. V. Presnova, M. Yu. Rubtsova, A. A. Popov, P. O. Mikhailov, A. S. Trifonov, O. V. Snigirev, V. A. Krupenin, D. E. Presnov
{"title":"Thermoregulation System for Biosensors Based on Field-Effect Transistors with a Nanowire Channel","authors":"G. V. Nibudin,&nbsp;I. I. Tsiniaikin,&nbsp;G. V. Presnova,&nbsp;M. Yu. Rubtsova,&nbsp;A. A. Popov,&nbsp;P. O. Mikhailov,&nbsp;A. S. Trifonov,&nbsp;O. V. Snigirev,&nbsp;V. A. Krupenin,&nbsp;D. E. Presnov","doi":"10.3103/S0027134924700061","DOIUrl":"10.3103/S0027134924700061","url":null,"abstract":"<p>In this work, an automatic thermoregulation system for biosensors based on field-effect transistors with a nanowire channel is demonstrated, providing full control and maintenance of the required temperature regime in bioanalytical analyses. The system elements, including field-effect transistors with a nanowire channel, temperature sensors, and heaters, were fabricated on a single silicon crystal using electron beam lithography, reactive ion etching, and high-vacuum deposition techniques. Unique electronics for temperature control and maintenance were developed. The dependence of thermometer readout on heating power was measured, which is in good agreement with the results of numerical simulation. A demonstration of a thermoregulation system with PID-feedback, ensuring the establishment of a desired temperature in the range from 30 to 70<span>({}^{circ})</span>C within 18 s in a liquid medium, was carried out. A demonstration of a thermoregulation system for detecting nucleic acids was performed using synthetic single-stranded DNA, representing a gene fragment from the bacterium <i>Escherichia coli</i>. The minimum detectable response was observed for a sample with a concentration of 3 fM.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"79 1","pages":"82 - 90"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140597699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New Infrared Camera of the Caucasian Mountain Observatory of the SAI MSU: Design, Main Parameters, and First Light MSU 高加索山天文台的新型红外摄像机：设计、主要参数和首次点亮
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-04-01 DOI: 10.3103/S0027134924700097
S. G. Zheltoukhov, A. M. Tatarnikov, A. A. Belyakova, E. A. Koksharova
{"title":"New Infrared Camera of the Caucasian Mountain Observatory of the SAI MSU: Design, Main Parameters, and First Light","authors":"S. G. Zheltoukhov,&nbsp;A. M. Tatarnikov,&nbsp;A. A. Belyakova,&nbsp;E. A. Koksharova","doi":"10.3103/S0027134924700097","DOIUrl":"10.3103/S0027134924700097","url":null,"abstract":"<p>This paper presents a prototype of an infrared photometer, created at the Sternberg Astronomical Institute, Lomonosov Moscow State University (SAI MSU), based on the commercial infrared module Gavin-615A. The operating spectral range of the photometer is 3–5 <span>(mu)</span>m. Investigations of the photometer’s detector have shown that its parameters coincide with those stated by the manufacturer. The nonlinearity of the detector does not exceed <span>({sim}5%)</span> across the entire signal range, and coefficients for correction functions were determined. Additionally, we determined the readout noise <span>(textrm{RN}=1200pm 210e^{-})</span>, the conversion coefficient <span>(textrm{GAIN}=520pm 9e^{-}/)</span>ADU, the signal magnitude of the bias frame <span>(textrm{BIAS}=960.5pm 2.2)</span> ADU, and the dark current <span>({approx}(9.3pm 1.1)times 10^{6}e^{-})</span>/s, which is the sum of the detector’s dark current and the radiation from the entrance window of the detector module. The value of dark current was measured at a window temperature of <span>(6^{circ})</span>C. Observations commenced with the photometer at the 2.5-m telescope of the Caucasian Mountain Observatory of MSU, with the first results presented in this paper. The unvignetted field of view was <span>(30^{primeprime})</span>. In the <span>(M)</span> band under good atmospheric conditions, an image quality close to the diffraction limit was achieved. Images of a star with brightness <span>(L=7.96)</span> and <span>(M=6.78)</span> were obtained over the 20-s exposure time and a <span>(textrm{SNR}sim 10)</span> ratio. It is shown that at high image quality with <span>(textrm{SNR}=3)</span> and exposure of 20 s it is possible to observe stars up to <span>(Lsim)</span> 9<span>({}^{m})</span> and <span>(Msim 8^{m})</span>. The main module of the photometer was also used in measurements of the sky background brightness.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"79 1","pages":"97 - 106"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140597784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Model of Surface Nanorelief Formation under Irradiation with Gas Cluster Ions 气簇离子辐照下的表面纳米氧化物形成模型
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-04-01 DOI: 10.3103/S0027134924700115
D. R. Bessmertniy, A. E. Ieshkin
{"title":"Model of Surface Nanorelief Formation under Irradiation with Gas Cluster Ions","authors":"D. R. Bessmertniy,&nbsp;A. E. Ieshkin","doi":"10.3103/S0027134924700115","DOIUrl":"10.3103/S0027134924700115","url":null,"abstract":"<p>A model for the evolution of surface nanorelief under irradiation with gas cluster ions is proposed. The model is based on the consideration of individual cluster collisions with a surface. The amount of material sputtered from the collision area and the efficiency of its redeposition on other surface elements are determined. The model’s performance is demonstrated through comparison with experimental data. The stages of smoothing the model harmonic relief are investigated. A new measure of surface smoothing efficiency is proposed.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"79 1","pages":"20 - 24"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140597644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Behaviour of the Geomagnetic Field during Reversals and Excursions 地磁场在逆转和偏移时的行为
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-04-01 DOI: 10.3103/S0027134924700152
M. Yu. Reshetnyak
{"title":"Behaviour of the Geomagnetic Field during Reversals and Excursions","authors":"M. Yu. Reshetnyak","doi":"10.3103/S0027134924700152","DOIUrl":"10.3103/S0027134924700152","url":null,"abstract":"<p>As demonstrated by a three-dimensional geodynamo model, during reversals and excursions of the geomagnetic field, with small amplitudes of heat sources, there occurs attenuation not only of the dipolar magnetic field but also of the high harmonic field. In this scenario, the Earth’s magnetosphere can be significantly smaller than previously expected, and correspondingly, the amount of radiation that penetrates the Earth could be greater.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"79 1","pages":"107 - 112"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140597790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stresses in Silicon Dioxide Films Deposited from Dielectric Targets: Results of Atomistic Modelling 从介电靶材沉积的二氧化硅薄膜中的应力：原子模型的结果
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-04-01 DOI: 10.3103/S0027134924700073
F. V. Grigoriev, V. B. Sulimov, A. V. Tikhonravov
{"title":"Stresses in Silicon Dioxide Films Deposited from Dielectric Targets: Results of Atomistic Modelling","authors":"F. V. Grigoriev,&nbsp;V. B. Sulimov,&nbsp;A. V. Tikhonravov","doi":"10.3103/S0027134924700073","DOIUrl":"10.3103/S0027134924700073","url":null,"abstract":"<p>The previously proposed method of molecular dynamics modelling for the sputter deposition of thin films from metal targets has been adapted for the case of dielectric targets and applied to silicon dioxide films. The possibility of the ejection from targets of not only silicon atoms but also clusters with oxygen atoms is taken into account by adding O=Si=O molecules to the flow of deposited atoms. Atomistic film clusters have been obtained at high-energy and low-energy sputter deposition with various percentages of molecules in the flow of deposited atoms. The values of the stress tensor components have been calculated. Compressive stresses are observed at high-energy deposition, while tensile stresses are observed at low-energy deposition. The absolute values of the diagonal components of the stress tensor increase with the increasing proportion of molecules in the flow of deposited atoms.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"79 1","pages":"52 - 57"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140597800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamics of Plasma in a Dual-Frequency Capacitive Discharge in an Ar/Xe Mixture 氩/氙混合物中双频电容放电的等离子体动力学
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-04-01 DOI: 10.3103/S0027134924700127
M. A. Bogdanova, D. G. Voloshin, A. V. Glotov, D. V. Lopaev, N. N. Sysoev, D. R. Shibanov
{"title":"Dynamics of Plasma in a Dual-Frequency Capacitive Discharge in an Ar/Xe Mixture","authors":"M. A. Bogdanova,&nbsp;D. G. Voloshin,&nbsp;A. V. Glotov,&nbsp;D. V. Lopaev,&nbsp;N. N. Sysoev,&nbsp;D. R. Shibanov","doi":"10.3103/S0027134924700127","DOIUrl":"10.3103/S0027134924700127","url":null,"abstract":"<p>The spatio-temporal dynamics of plasma in a symmetrical dual-frequency 81 MHz/1.76 MHz capacitive discharge under the influence of a low-frequency 1.76 MHz field has been studied. Using phase-resolved optical emission spectroscopy, the dynamics of argon and xenon emission intensity in the plasma was obtained. Measurements of the electron energy probability function (EEPF) at the center of the discharge were performed using a Langmuir probe, and electron density measurements were made using a hairpin probe. The main result is the dynamics of the intensity ratios of selected argon and xenon lines under different conditions: at pressures of 40, 200, and 400 mTorr, low-frequency voltage amplitudes of 100, 200, and 400 V, and input power at 81 MHz of 3 and 15 W. The dynamics of high-energy electrons was investigated based on a two-temperature approximation of the electron energy probability function.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"79 1","pages":"75 - 81"},"PeriodicalIF":0.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140597807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation of Particle Interactions with Matter Using PHITS Monte Carlo Code: Physical Aspects of Bragg Curve for Carbon Ion Therapy 使用 PHITS 蒙特卡罗代码模拟粒子与物质的相互作用：碳离子疗法布拉格曲线的物理方面
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-03-10 DOI: 10.3103/S0027134923060048
Hassane El Bekkouri, El Mehdi Al Ibrahmi, Mohamed El-Asery, Zouhair Sadoune, Adil Bardane, Abdessamad Didi, El Mahjoub Chakir
{"title":"Simulation of Particle Interactions with Matter Using PHITS Monte Carlo Code: Physical Aspects of Bragg Curve for Carbon Ion Therapy","authors":"Hassane El Bekkouri,&nbsp;El Mehdi Al Ibrahmi,&nbsp;Mohamed El-Asery,&nbsp;Zouhair Sadoune,&nbsp;Adil Bardane,&nbsp;Abdessamad Didi,&nbsp;El Mahjoub Chakir","doi":"10.3103/S0027134923060048","DOIUrl":"10.3103/S0027134923060048","url":null,"abstract":"<p>In recent times, Monte Carlo simulations are gaining widespread recognition as the most precise tool for calculating particle interactions with matter. In this study, we investigated two primary aspects. Firstly, we examined how the average excitation energy of water <span>((I_{W}))</span> influences the location of the Bragg peak (BP). Secondly, we used the particle and heavy ion transport code system (PHITS) to study the Bragg curve of <span>({}^{12})</span>C ion beam having an energy of 200 MeV/u in three different mediums: water, soft tissue, and bone. Lastly, we examined the impact of secondary particles on the overall dose. Our findings indicate that the average excitation energy of water strongly influences the position of the BP. The tail dose beyond the BP primarily results from secondary fragments of the primary carbon ion beams. Furthermore, the PHITS code accurately reproduces the measured Bragg curves.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"78 6","pages":"804 - 809"},"PeriodicalIF":0.4,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140100247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Latest Advances in Scanning Ion-Conductance Microscopy and Nanopipette Systems for Single-Cell Analysis under Serial Conditions 用于串行条件下单细胞分析的扫描离子电导显微镜和纳米移液管系统的最新进展
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-03-10 DOI: 10.3103/S0027134923060152
D. A. Shergin, A. P. Iakovlev, P. V. Gorelkin, S. V. Salikhov, A. S. Erofeev
{"title":"Latest Advances in Scanning Ion-Conductance Microscopy and Nanopipette Systems for Single-Cell Analysis under Serial Conditions","authors":"D. A. Shergin,&nbsp;A. P. Iakovlev,&nbsp;P. V. Gorelkin,&nbsp;S. V. Salikhov,&nbsp;A. S. Erofeev","doi":"10.3103/S0027134923060152","DOIUrl":"10.3103/S0027134923060152","url":null,"abstract":"<p>Studying single cells opens opportunities for understanding many biological processes and, as a consequence, plays an important role in the development of biomedicine. Scanning ion conductance microscopy (SICM) and nanopipette systems for the analysis of single cells represent a powerful tool for investigating the morphological, mechanical, and biochemical features of living cells with nanometer spatial resolution under near-natural conditions. Over the last decades, SICM has shown great success in studying and manipulating single cells, and the noncontact nature of the system, combined with the unique features of nanopipettes used as probes, has opened new possibilities for the application of such systems in biomedical applications. This review reflects the latest trends and directions in the development of SICM and nanopipette systems for the single-cell analysis.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"78 6","pages":"729 - 743"},"PeriodicalIF":0.4,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140098668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Elastic Neutrino–Nucleon Scattering and Electromagnetic Properties of Neutrinos 弹性中微子-核子散射和中微子的电磁特性
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-03-10 DOI: 10.3103/S0027134923060103
K. A. Kouzakov, F. M. Lazarev, A. I. Studenikin
{"title":"Elastic Neutrino–Nucleon Scattering and Electromagnetic Properties of Neutrinos","authors":"K. A. Kouzakov,&nbsp;F. M. Lazarev,&nbsp;A. I. Studenikin","doi":"10.3103/S0027134923060103","DOIUrl":"10.3103/S0027134923060103","url":null,"abstract":"<p>We study the electromagnetic contribution to the processes of elastic scattering of neutrinos on nucleons. In our formalism, the electromagnetic charge, magnetic, electric, and anapole form factors of neutrinos, both of diagonal and transition types in the mass basis, are taken into account. When treating the nucleon electromagnetic vertex, we consider not only the charge and magnetic form factors of the nucleon but also its electric and anapole form factors. We analyze the possible effects of the neutrino magnetic moment in the elastic neutrino–nucleon scattering and how they can be distinguished from the effects of strange quarks contributing to the weak neutral current form factor of the nucleon.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"78 6","pages":"797 - 803"},"PeriodicalIF":0.4,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140889233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First Principles Predict the Structural Properties, Electronic Properties and Phase Diagrams of RDX under High Temperature and Pressure 预测高温高压下 RDX 的结构特性、电子特性和相图的第一原理
IF 0.4 4区 物理与天体物理
Moscow University Physics Bulletin Pub Date : 2024-03-10 DOI: 10.3103/S0027134923060127
Wei Liu, Yun-Dan Gan, Ying-Xi Luo, Zheng-Tang Liu,  Fu-Sheng Liu,  Qi-Jun Liu
{"title":"First Principles Predict the Structural Properties, Electronic Properties and Phase Diagrams of RDX under High Temperature and Pressure","authors":"Wei Liu,&nbsp;Yun-Dan Gan,&nbsp;Ying-Xi Luo,&nbsp;Zheng-Tang Liu,&nbsp; Fu-Sheng Liu,&nbsp; Qi-Jun Liu","doi":"10.3103/S0027134923060127","DOIUrl":"10.3103/S0027134923060127","url":null,"abstract":"<p>This paper studies the three phases of RDX using the first-principles, and calculates electronic properties of RDX. At the same time, the properties of the three phases near the phase transition pressure are calculated. Under normal pressure, the lattice parameters of <span>(alpha)</span>-RDX are in good agreement with the experimental values. The lattice parameters of <span>(gamma)</span>-RDX are in good agreement with the experimental values. The theoretical value of the unit cell volume of <span>(beta)</span>-RDX is smaller than the experimental value, because <span>(beta)</span>-RDX will expand in volume at high temperature. Under normal pressure and pressure of 2.8 GPa, there is no virtual frequency in phonon spectrum of <span>(alpha)</span>-RDX. The appearance of virtual frequency under the pressure of 4 GPa indicates that the structure is unstable under this pressure and phase transition has occurred. Under the action of pressure, the peak values of conduction band and valence band decrease slightly, which is more obvious near the Fermi level, indicating that the electrons around the Fermi level are more sensitive to pressure. According to the calculation of Gibbs free energy, under the pressure of 2.8 GPa, <span>(alpha)</span>-RDX will change into <span>(gamma)</span>-RDX, which is in good agreement with the experimental value. The result is consistent with the previous phonon spectrum calculation. At the same time, under this pressure,when the temperature rises to 467 K, <span>(alpha)</span>-RDX transforms into high-temperature phase <span>(beta)</span>-RDX. Finally, the phase transition temperature of <span>(alpha)</span>-RDX and <span>(beta)</span>-RDX at 2.7 GPa was calculated. And the phase transition temperatures of <span>(gamma)</span>-RDX and <span>(beta)</span>-RDX at 2.9 GPa determine the phase boundary of the three phase of RDX.</p>","PeriodicalId":711,"journal":{"name":"Moscow University Physics Bulletin","volume":"78 6","pages":"846 - 853"},"PeriodicalIF":0.4,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140889239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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