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| 1 | Improved ant colony optimization algorithm for the traveling salesman problems显示文摘Ant colony optimization(ACO) is a new heuristic algorithm which has been proven a successful technique and applied to a number of combinatorial optimization problems.The traveling salesman problem(TSP) is among the most important combinatorial problems.An ACO algorithm based on scout characteristic is proposed for solving the stagnation behavior and premature convergence problem of the basic ACO algorithm on TSP.The main idea is to partition artificial ants into two groups:scout ants and common ants.The common ants work according to the search manner of basic ant colony algorithm,but scout ants have some differences from common ants,they calculate each route's mutation probability of the current optimal solution using path evaluation model and search around the optimal solution according to the mutation probability.Simulation on TSP shows that the improved algorithm has high efficiency and robustness. | Rongwei Gan Qingshun Guo Huiyou Chang Yang Yi | 2010 | Journal of Systems Engineering and Electronics2010，21，2： | 22 |
| 2 | Numerical study of unsteady starting characteristics of a hypersonic inlet显示文摘The impulse and self starting characteristics of a mixed-compression hypersonic inlet designed at Mach number of 6.5 are studied by applying the unsteady computational fluid dynamics (CFD) method. The full Navier-Stokes equations are solved with the assumption of viscous perfect gas model, and the shear-stress transport (SST) k-x two-equation Reynolds averaged Navier- Stokes (RANS) model is used for turbulence modeling. Results indicate that during impulse starting, the flow field is divided into three zones with different aerodynamic parameters by primary shock and upstream-facing shock. The separation bubble on the shoulder of ramp undergoes a generating, growing, swallowing and disappearing process in sequence. But a separation bubble at the entrance of inlet exists until the freestream velocity is accelerated to the starting Mach number during self starting. The mass flux distribution of flow field is non-uniform because of the interaction between shock and boundary layer, so that the mass flow rate at throat is unsteady during impulse starting. The duration of impulse starting process increases almost linearly with the decrease of freestream Mach number but rises abruptly when the freestream Mach number approaches the starting Mach number. The accelerating performance of booster almost has no influence on the self starting ability of hypersonic inlet. | Wang Weixing Guo Rongwei | 2013 | Chinese Journal of Aeronautics2013，26，3： | 15 |
| 3 | Experimental Investigation of a Fixed-geometry Two-dimensional Mixed-compression Supersonic Inlet with Sweep-forward High- light and Bleed Slot in an Inverted "X"-type Layout显示文摘改正几何学二维的混合压缩有打扫向前的超声的入口在一个转换鈥淴鈥 ? 形式布局加亮并且流血槽在一条风隧道被测试。结果显示:(1 ) 随免费溪流马赫的增加数,全部的压力恢复减少,当集体流动比率在设计增加到最大值时,指然后减少;( 2 )什么时候攻击的角度,伪,是不到 6 掳,双方入口的全部的压力恢复趋于减少,,但是,在庇护方面入口上,它的价值比那些在上高上风方面入口,并且庇护方面入口上的集体流动比率增加第一然后掉落,当时在上上风它保留在仍然保持几乎不变的双方上与集体流动的和慢慢地衰退的方面;( 3 )与攻击角度,伪,快速在庇护方面入口秋天从 6 掳 升起到 9 掳,两全部的压力恢复和集体流动比率,但是在上上风方面入口能被观察在全部的压力恢复和增加的减少总的来说流动比率;( 4 )由比较,速度和背迫使特性--有入口没有的到那些的bleed 槽的入口的 ristics ,它站推想bleed 槽的存在让拓宽不仅稳定的工作范围海湾,而且在高马赫数字在它的表演做了庞大的改进。而且,这份报纸也论述一个例子显示出这类入口怎么被设计。 | Wan Dawei Guo Rongwei | 2007 | Chinese Journal of Aeronautics2007，20，4： | 9 |
| 4 | Unsteady flow characteristic analysis of turbine based combined cycle(TBCC)inlet mode transition10.1016/j.jppr.2015.07.006显示文摘A turbine based combined cycle(TBCC)propulsion system uses a turbine-based engine to accelerate the vehicle from takeoff to the mode transition flight condition,at which point,the propulsion system performs a“mode transition”from the turbine to ramjet engine.Smooth inlet mode transition is accomplished when flow is diverted from one flowpath to the other,without experiencing unstart or buzz.The smooth inlet mode transition is a complex unsteady process and it is one of the enabling technologies for combined cycle engine to become a functional reality.In order to unveil the unsteady process of inlet mode transition,the research of over/under TBCC inlet mode transition was conducted through a numerical simulation.It shows that during the mode transition the terminal shock oscillates in the inlet.During the process of inlet mode transition mass flow rate and Mach number of turbojet flowpath reduce with oscillation.While in ramjet flowpath the flow field is non-uniform at the beginning of inlet mode transition.The speed of mode transition and the operation states of the turbojet and ramjet engines will affect the motion of terminal shock.The result obtained in present paper can help us realize the unsteady flow characteristic during the mode transition and provide some suggestions for TBCC inlet mode transition based on the smooth transition of thrust. | Jun Liu Huacheng Yuan Rongwei Guo | 2015 | Propulsion and Power Research2015，4，3： | 4 |
| 5 | PREDICTION OF FATIGUE LIVES OF RC BEAMS STRENGTHENED WITH CFL UNDER RANDOM LOADING显示文摘与纤维加强的结构在随机下面把压成薄片装载的增强的水泥(RC ) 的疲劳生活上的调查为修理或加强桥和交通的安全是重要的。在这份报纸,二个方法为在基于剩余生活和一个剩余力量模型的随机的装载下面预言与碳纤维加强的结构把压成薄片的 RC (CFL ) 的疲劳生活被开发。为了讨论模型,的效率,与 CFL 加强的 12 根 RC 横梁在由 MTS810 严峻的系统的随机的装载下面被测试。预言的剩余力量近似同意测试结果。 | Rongwei Lin Peiyan Huang Chen Zhao Xinyan Guo Xiaohong Zheng | 2008 | Acta Mechanica Solida Sinica2008，21，4： | 4 |
| 6 | A simple adaptive control for full and reduced-order Synchronization of uncertain time-varying chaotic systems显示文摘 | Vincent U E Rongwei Guo | 2009 | Communications in Nonlinear Science and Numerical Simulation2009，14，10： | 1 |
| 7 | Identifying parameter by identical synchronization between different systems 显示文摘 | Debin Huang Rongwei Guo | 2004 | Chaos2004，14，1： | 1 |
| 8 | Highly enantioselective hydrogenation of enamides catalyzed by rhodium-monodentate phosphoramidite complex显示文摘 | JIA Xian GUO Rongwei LI Xingshu | 2002 | Tetrahedron Letters2002，43，32： | 1 |
| 9 | The Associated Factors of SARS-CoV-2 Reinfection by Omicron Variant—Guangdong Province,China,December 2022 to January 2023显示文摘Summary What is already known about this topic?Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)reinfection by variants is being reported commonly and has caused waves of epidemic in many countries.Because of dynamic zero policy,the SARSCoV-2 reinfection was less reported in China.What is added by this report?SARS-CoV-2 reinfections were observed in Guangdong Province between December 2022 and January 2023.This study estimated that the reinfection incidence was 50.0%for the original strain primary infections,35.2%for the Alpha or Delta variants,and 18.4%for the Omicron variant;The reinfection incidence within 3-6 months after primary infection by Omicron variant was 4.0%.Besides,96.2%reinfection cases were symptomatic while only 7.7%sought medical attention.What are the implications for public health practice?These findings suggest a reduced likelihood of an Omicron-driven epidemic resurgence in the short term but emphasize the importance of maintaining vigilant surveillance of emerging SARS-CoV-2 variants and conducting population-based antibody level surveys to inform response preparedness. | Chunsheng Cai Yihong Li Ting Hu Rongwei Liang Kaibin Wang Congrui Guo Yan Li Meng Zhang Min Kang | 2023 | China CDC weekly2023，5，18： | 1 |
| 10 | Characterization and performance enhancement of submerged inlet with flushmounted planar side entrance 显示文摘 | SUN Shu GUO Rongwei WU Yizhao | 2007 | Journal of Propulsion and Power2007，23，5： | 1 |
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