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| 1 | Generalized equation for calculating rock cutting efficiency by pulsed water jets显示文摘One of the promising methods for rock cutting technology is the use of high-speed water jets.In order to improve the cutting capacity of water jets without increasing the hydraulic power of equipment,pulsed water jets are basically used to increase the rock cutting efficiency.However,there are no mature recommendations for selection of rational parameters,and the relationship between indicators of rock cutting efficiency and parameters of pulsed water jet is still not established.In this context,we aimed at developing a generalized equation for calculating rock cutting efficiency,in which all the major parameters in consideration of rock cutting process are included.Then,a calibration of the rational parameters of rock cutting by pulsed water jets was conducted.The results are likely helpful for increasing productivity and reducing energy consumption. | Andrey Polyakov Aleksandr Zhabin Eugene Averin Aleksey Polyakov | 2019 | Journal of Rock Mechanics and Geotechnical Engineering2019，11，4： | 6 |
| 2 | 换挡工况下湿式换挡离合器变胞机理显示文摘针对目前难以全面描述湿式换挡离合器变结构、非定常和非数值的变拓扑工作过程的问题,基于湿式换挡离合器工作特性的分析,定义摩擦对偶片各构态的约束函数,建立摩擦对偶片变胞器,提出湿式换挡离合器变胞的图形描述方法.采用矩阵分析法,以约束函数为元素,推导离合器各构态的邻接矩阵,解析相邻构态转换时对应的变胞函数和变胞方程,构建湿式换挡离合器工作的变胞拓扑模型,揭示换挡离合器工作状态转换的变胞机理.基于变胞机理分析,提出更直观和简便的离合器动力学建模方法,通过对比分析离合器转速变化规律的试验和仿真结果,表明该方法的准确性和可行性. | 符升平 李胜波 罗宁 Roman Nikolaevich Polyakov | 2019 | 浙江大学学报(工学版)2019，53，4： | 3 |
| 3 | 利用地基高分辨率傅里叶变换红外光谱技术探测大气氟氯烃气体CCl_(2)F_(2)的时空变化特征显示文摘大气二氯二氟甲烷(CCl_(2)F_(2),CFC-12)是人工合成的化学制剂,对平流层臭氧可产生严重的破坏和损耗.研究大气CFC-12的探测技术并获取其时空分布和变化,对了解区域氟氯烃气体变化趋势以及对平流层臭氧的影响具有重要意义.本文利用地基高分辨率傅里叶变换红外光谱(Fourier transform infrared spectroscopy,FTIR)技术研究大气CFC-12的垂直分布和柱浓度的反演方法,基于最优估计算法反演2017-2020年合肥地区大气CFC-12的垂直廓线和柱总量.合肥大气CFC-12反演获得的垂直廓线表明,大气CFC-12在对流层以及低平流层处具有较高浓度,在垂直高度40 km以上浓度极低.合肥地区大气CFC-12的柱浓度含量呈现出夏季浓度较高,冬季与初春浓度较低的季节变化;观测期间大气CFC-12柱浓度呈现缓慢下降的趋势,年均变化率为-0.68%.将地基观测数据与ACE-FTS卫星观测数据进行比对,在高度范围16-28 km内两个CFC-12偏柱总量的相关性系数为0.73,可见地基和卫星数据具有较好的一致性.长期观测结果表明了地基高分辨率FTIR技术在观测大气中CFC-12的浓度垂直分布与季节变化上具有高的准确性和可靠性. | 曾祥昱 王薇 刘诚 单昌功 谢宇 胡启后 孙友文 Polyakov Alexander Viktorovich | 2021 | 物理学报2021，70，20： | 2 |
| 4 | 考虑误差和齿面摩擦随机性的直齿圆柱齿轮副振动特性分析显示文摘针对考虑误差和齿面摩擦参数随机性的齿轮振动特性不明确的问题,综合统计法和集中质量法,数值研究误差和齿面摩擦参数的随机特性,分析轮齿误差对齿面摩擦参数的影响,建立计及误差和齿面摩擦参数随机性的直齿轮传动弯扭耦合振动模型;采用4阶龙格库塔法进行数值求解,得到齿轮传动的振动响应,探析齿轮误差和齿面摩擦参数随机性对齿轮振动特性的影响。结果表明,考虑误差和齿面摩擦随机性后,在两者的作用下齿轮动力学响应在频域与相图上表现出更为复杂的随机性,其中误差随机性对于齿轮系统动力学稳定性的干扰更强。研究结果为齿轮传动的动态设计提供理论参考。 | 高在达 李胜波 符升平 Polyakov Roman | 2022 | 机械传动2022，46，2： | 2 |
| 5 | Modeling Arctic Ocean heat transport and warming episodes in the 20th century caused by the intruding Atlantic Water显示文摘This study investigates the Arctic Ocean warming episodes in the 20th century using both a high-resolution coupled global climate model and historical observations .The model,with no flux adjustment,reproduces well the Atlantic Water core temperature(AWCT) in the Arctic Ocean and shows that four largest decadal-scale warming episodes occurred in the 1930s,70s,80s,and 90s,in agreement with the hydrographic observational data.The difference is that there was no pre-warming prior to the 1930s episode,while there were two pre-warming episodes in the 1970s and 80s prior to the 1990s,leading the 1990s into the largest and prolonged warming in the 20th century.Over the last century,the simulated heat transport via Fram Strait and the Barents Sea was estimated to be,on average,31.32 TW and 14.82 TW,respectively,while the Bering Strait also provides 15.94 TW heat into the western Arctic Ocean.Heat transport into the Arctic Ocean by the Atlantic Water via Fram Strait and the Barents Sea correlates significantly with AWCT(C=0.75 ) at 0- lag.The modeled North Atlantic Oscillation(NAO) index has a significant correlation with the heat transport(C=0.37).The observed AWCT has a significant correlation with both the modeled AWCT(C=0.49) and the heat transport(C=0.41). However,the modeled NAO index does not significantly correlate with either the observed AWCT(C=0.03) or modeled AWCT(C=0.16) at a zero-lag,indicating that the Arctic climate system is far more complex than expected. | Wang Jia Jin Meibing Jun Takahashi Tatsuo Suzuki Igor V Polyakov Kohei Mizobata Moto Ikeda Fancois J. Saucier Markus Meier | 2008 | Chinese Journal of Polar Science2008，19，2： | 2 |
| 6 | Supperoxide anion ( O2^- ) Production and engymatic disbalance in peripheral blood cells isolated from HIV - infected children 显示文摘 | POLYAKOV V M SHEPELEV A P KOKOVKINA O E | 1994 | Free Radic Biol Med1994，16，： | 1 |
| 7 | Arctic decadal and interdecadal variability显示文摘 | Polyakov I V Johnson M A | 2000 | Geophys Res Lett2000，27，24： | 1 |
| 8 | Long term ice variability in Arctic marginal seas显示文摘 | Polyakov I Alekseev G V Bekryaev R V | 2003 | Journal of Climate2003，16，12： | 1 |
| 9 | Deep traps responsible for hysteresis in capacitance-voltage characteristics of AIGaN / GaN heterostructure tran- sistors 显示文摘 | Polyakov A Y Smirnov N B Govorkov A V | 2007 | App Phys Lett2007，91，23： | 1 |
| 10 | Lyapunov function design for finite-time convergence analysis;'Twisting' controller for second-order sliding mode realization显示文摘 | POLYAKOV A POZNYAK A | 2009 | Automatica2009，45，2： | 1 |
| 11 | X-Ray Diffraction Determination of the Fractions of Hexagonal and Twinned Phase in Cubic GaN Layers Grown on GaAs (001)Substrate显示文摘 | Polyakov A Y Govorkov A V Smirnov N B | 2001 | Solid-state Electronics2001，45，： | 1 |
| 12 | Differential decondensation of mitotic chromosomes during hypotonic treatment of living cells as a possible cause of G-band: an uItrastructural strudy 显示文摘 | Zarsepina O V Polyakov V Y Chentsov | 1989 | Chromosoma1989，，： | 1 |
| 13 | Hollow-fiber membrane adsorber: Math- ematical model显示文摘 | Polyakov Y S | 2006 | J Membr Sci2006，280，12： | 1 |
| 14 | String theory and gravity显示文摘 | T. Damour A. M. Polyakov | 1994 | General Relativity and Gravitation1994，，12： | 1 |
| 15 | Dielectric loss and energy distribution of the shallow levels in CVD diamonds显示文摘 | Garin B M Polyakov V I Rukovishnikov A I | 2006 | Diamond and Related Materials2006，15，1112： | 1 |
| 16 | Mechanisms of Fermi level pinning in Schottky barriers on InGaAsSb and AlGaAsSb 显示文摘 | Polyakov A Y Milnes A G Smimov N B | 1993 | Solid - State Electronics1993，36，10： | 1 |
| 17 | Sediment transport in rill flow under deposition and detachment conditions显示文摘 | POLYAKOV V O NEARING M A | 2003 | Catena2003，51，1： | 1 |
| 18 | Three- dimensional structure of saceharomyces cerevisiae inorganic pyrophosphatase complexed with cobalt and phosphate ions 显示文摘 | Kuranova IP Polyakov KM Smirnova EA | 2003 | Crystallography Reports2003，48，6： | 1 |
| 19 | Physiological mechanisms of effectiveness of bilateral stersotactic cingulotomy against strong psychological dependence in drug addicts显示文摘 | Medvedev SV Anichkov AD Polyakov YI | 2003 | Hum Physiol2003，29，4： | 1 |
| 20 | Deadend outsideqn hollow fiber mere brane filter: Mathematical model显示文摘 | Polyakov Y S | 2006 | J Membr Sci2006，279，12： | 1 |
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