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| 1 | 飞秒激光切削牙齿硬组织表面粗糙度和显微形貌观察显示文摘目的初步建立飞秒激光数控切削牙齿硬组织模拟实验平台并观察显微形貌,以期为飞秒激光的临床应用提供依据。方法用人离体第三磨牙制备牙釉质和牙本质平面样本各1个;通用运动控制器控制样本在与激光入射方向垂直的焦点平面内做矩形波轨迹运动。激光扫描共聚焦显微镜测量切削面粗糙度,扫描电镜观察显微形貌。结果用实验建立的飞秒激光数控切削平台制备牙釉质和牙本质正方形窝洞各1个。窝洞边界清晰、底平壁直。牙釉质激光扫描线内底部粗糙度7.173μm,侧壁粗糙度2.675μm;窝洞底壁粗糙度13.667μm,侧壁粗糙度33.927μm。牙本质窝洞底壁粗糙度51.182μm,侧壁粗糙度25.629μm。扫描电镜下牙釉质未见微裂隙及碳化,牙本质出现碳化、少量裂隙和结晶颗粒。结论飞秒激光数控切削能实现精确牙体切削,切削面侧壁粗糙度小于底面,可满足临床修复要求。但应针对不同切削对象设置适宜的飞秒激光能量密度,其过高时可造成组织损伤。 | 孙玉春 Anatoliy Vorobyev 刘晶 Chunlei Guo 吕培军 | 2012 | 中华口腔医学杂志2012，47，8： | 9 |
| 2 | 熔融金属液滴热细粒化过程研究显示文摘熔融液滴的细粒化是决定燃料与冷却剂相互作用破坏后果的关键过程,它决定最终的热能与动能的转化比,是预测事故后果的重要因素之一。然而目前对该过程中基于本身内能的热细粒化机理尚不清楚。本工作通过单个熔融金属液滴与水相互作用的实验,借助高速摄像系统对熔融液滴的热细粒化现象进行拍摄,观察发现熔融金属液滴与水的相互作用经历了若干次加速膨胀细粒化过程,测量到熔融液滴的细粒化时间为0.8 ms,两次细粒化的时间间隔为0.8 ms,细粒化加速膨胀时间仅为0.4 ms。根据实验观察和分析,提出了一种由熔融液滴与水接触面不稳定沸腾效应引起的热细粒化机理。 | 林千 佟立丽 曹学武 Alexander VOROBYEV VladimirK RIVENTSEV | 2009 | 原子能科学技术2009，43，7： | 3 |
| 3 | Thermal state calculation of chamber in small thrust liquid rocket engine for steady state pulsed mode显示文摘This paper presents a method of thermal state calculation of combustion chamber in small thrust liquid rocket engine. The goal is to predict the thermal state of chamber wall by using basic parameters of engine: thrust level, propellants, chamber pressure, injection pattern, film cooling parameters, material of wall and their coating, etc. The difficulties in modeling the startup and shutdown processes of thrusters lie in the fact that there are the conjugated physical processes occurring at various parameters for non-design conditions. A mathematical model to predict the thermal state of the combustion chamber for different engine operation modes is developed. To simulate the startup and shutdown processes, a quasi-steady approach is applied by replacing the transient process with time-variant operating parameters of steady-state processes. The mathematical model is based on several principles and data commonly used for heat transfer modeling: geometry of flow part, gas dynamics of flow, thermodynamics of propellants and combustion spices, convective and radiation heat flows, conjugated heat transfer between hot gas and wall, and transient approach for calculation of thermal state of construction. Calculations of the thermal state of the combustion chamber in single-turn-on mode show good convergence with the experimental results. The results of pulsed modes indicate a large temperature gradient on the internal wall surface of the chamber between pulses and the thermal state of the wall strongly depends on the pulse duration and the interval. | Alexey Gennadievich VOROBYEV Svatlana Sergeevna VOROBYEVA Lihui ZHANG Evgeniy Nikolaevich BELIAEV | 2019 | Chinese Journal of Aeronautics2019，32，2： | 2 |
| 4 | Animal colour visionbehavioural tests and physiological concepts显示文摘 | Kelber A Vorobyev M Osorio D | | 0，，： | 1 |
| 5 | Effects of nanostructure covered femtosecond laser induced periodic surface structures on optical absorptance of metals显示文摘 | Vorobyev A Y Guo C | 2007 | Applied Physics A : Materials Science & Processing2007，86，3： | 1 |
| 6 | 显示文摘 | Vorobyev A Y Guo C L | 2007 | Appl Surf Sci2007，253，： | 1 |
| 7 | Colorizing metals with femtosecond laser pulses显示文摘 | Vorobyev A Y Guo Chunlei | 2008 | Appl Phys Lett2008，92，04： | 1 |
| 8 | Femtosecond laser blackening of platinum显示文摘 | Vorobyev A Y Guo Chunlei | 2008 | J Appl Phys2008，104，05： | 1 |
| 9 | Effects of nanostructure covered femtosecond laser induced periodic surface structures on optical absorptance of metals显示文摘 | Vorobyev A Y Guo Chunlei | 2007 | Appl Phys2007，86，32： | 1 |
| 10 | Direct creation of black silicon using femtosecond laser pulses显示文摘 | Vorobyev A Y Guo C | 2011 | Appl Surf Sci2011，257，16： | 1 |
| 11 | Femtosecond laser-induced periodic surface structure formation on tungsten显示文摘 | Vorobyev A Y Guo C | 2008 | Journal of Applied Physics2008，104，06： | 1 |
| 12 | Flat Display Based on the Metal-Insulator-Metal Emitter Array显示文摘 | Troyan P E Lubsanov R B Vorobyev G A | 1993 | Journal of Vacuum Science&Technology:Microelectronics and Nanometer Structures1993，11，2： | 1 |
| 13 | Periodic ordering of random surface nanostructures induced by femtosecond laser pulses on metals显示文摘 | Vorobyev A Y Makin V S Guo C | 2007 | Journal of Applied Physics2007，101，03： | 1 |
| 14 | Effects of nanostructure-covered femtosecond laser-induced periodic surface structures on optical absorptance of metals显示文摘 | A Y Vorobyev Chunlei Guo | 2007 | Appl Phys A2007，86，3： | 1 |
| 15 | Colorizing metals with femtoaeeond laser pulses显示文摘 | Vorobyev A Y and Guo C L | 2008 | Applied Physics Letters2008，92，04： | 1 |
| 16 | Femtosecond laser induced periodic surface structure formation on tungsten 显示文摘 | Vorobyev A Y Guo Chunlei | 2008 | Appl Phys2008，104，06： | 1 |
| 17 | Enhanced absorptance of gold following multipulse femtosecond laser ablation显示文摘 | Vorobyev A Y Chunlei G | 2005 | Physical Review B2005，72，19： | 1 |
| 18 | Periodic ordering of random surface nanostructures induced by femtosecond laser pulses on metals 显示文摘 | Vorobyev A Y Makin V S Guo Chunlei | 2007 | Appl Phys2007，101，03： | 1 |
| 19 | Effects of nanostructure-covered femtosecond laser-induced periodic surface structures on optical absorptance of metals显示文摘 | A.Y. Vorobyev Chunlei Guo | 2007 | Applied Physics A2007，，3： | 1 |
| 20 | Direct femtosecond laser surface nano/microstructuring and its applications显示文摘 | Vorobyev A Y Guo C | 2013 | Laser & Photonics Reviews2013，7，3： | 1 |
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