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| 1 | Planetary defense mission concepts for disrupting/pulverizing hazardous asteroids with short warning time显示文摘This paper presents an overview of space mission concepts for disrupting or pulverizing hazardous asteroids, especially with warning time shorter than approximately 10 years. An innovative mission concept, referred to as a nuclear hypervelocity asteroid intercept vehicle (HAIV) system, employs both a kinetic-energy impactor and nuclear explosive devices. A new mission concept of exploiting a multiple kinetic-energy impactor vehicle (MKIV) system that doesn’t employ nuclear explosives is proposed in this paper, especially for asteroids smaller than approximately 150 m in diameter. The multiple shock wave interaction effect on disrupting or pulverizing a small asteroid is discussed using hydrodynamic simulation results. A multi-target terminal guidance problem and a planetary defense mission design employing a heavy-lift launch vehicle are also brie y discussed in support of the new non-nuclear MKIV mission concept. The nuclear HAIV and non-nuclear MKIV systems complement to each other to effectively mitigate the various asteroid impact threats with short warning time. | Bong Wie Ben Zimmerman Joshua Lyzhoft George Vardaxis | 2017 | Astrodynamics2017，1，1： | 10 |
| 2 | Separation and analysis of aromatic hydrocarbons from two Chinese coals显示文摘Separation and analysis of aromatic hydrocarbons (AHs) from coals is of considerable significance for both fuel and non-fuel use of the coals. In present work two Chinese bituminous coals were selected for separation of AHs by ultrasonic extrac-tion with CS2 followed by column chromatography using hexane as eluent. A series of AHs were separated from the two coals and analyzed by GC/MS. FTIR was employed to characterize the raw coals and the extracted residues. The results of GC/MS analysis show that the separated AHs are mono- to tetracyclic arenes, among which the principle AHs are alkyl naphthalenes and phenan-threnes. Obvious differences in the composition and the structure of AHs exist between the two coals, i.e., the AHs from Tongting coal tend to be higher rings compared to those from Pingshuo coal both from the variety and from the abundance of the AHs. FTIR analysis shows that the raw and extracted coals are similar in terms of functional groups, suggesting that the composition and structure of CS2 extract, especially the AHs, from coals can be used to interpret the coal structure to some extent. | DING Ming-jie LI Wen-dian XIE Rui-lun ZONG Ying CAI Ke-ying PENG Yao-li ZONG Zhi-min WIE Rui-lun WEI Xian-yong | 2008 | Journal of China University of Mining and Technology2008，18，3： | 3 |
| 3 | Orbital rendezvous performance comparison of differential geometric and ZEM/ZEV feedback guidance algorithms显示文摘In this paper,the performance of two distinct classes of feedback guidance algorithms is evaluated for a spacecraft rendezvous problem utilizing a continuous low-thrust propulsion system.They are the DG(Differential Geometric)and ZEM/ZEV(Zero-Effort-Miss/Zero-Effort-Velocity)feedback guidance algorithms.Even though these two guidance algorithms do not attempt to minimize the onboard fuel consumption orΔV directly,theΔV requirement is used as a measure of their orbital rendezvous performance for various initial conditions and a wide range of the rendezvous time(within less than one orbital period of the target vehicle).For the DG guidance,the effects of its guidance parameter and terminal time on the closed-loop performance are evaluated by numerical simulations.For the ZEM/ZEV guidance,its nearfuel-optimality is further demonstrated for a rapid,short-range orbital rendezvous,in comparison with the corresponding open-loop optimal solutions.Furthermore,the poorΔV performance of the ZEM/ZEV guidance for a slow,long-range orbital rendezvous is remedied by simply adding an initial drift phase.The ZEM/ZEV feedback guidance algorithm and its appropriate variants are then shown to be a simple practical solution to a non-impulsive rendezvous problem,in comparison with the DG guidance as well as the open-loop optimal guidance. | Pengyu Wang Yanning Guo Bong Wie | 2019 | Astrodynamics2019，3，1： | 2 |
| 4 | The augment lagrangian method for solving dynamic network traffic assignment models in discrete time 显示文摘 | Wie B W Tobin R L Friesz T L | 1994 | Transportation Science1994，28，3： | 1 |
| 5 | Rapid multi-target acquisition and pointing control of agile spacecraft 显示文摘 | WIE B BAILEY D HEIBERG C | | Journal of Guidance Control and Dynamics 2{D20，25，1： | 1 |
| 6 | Internal flowfield characteristics of a two-dimensional inlet at mach 10显示文摘 | D M Van Wie D A Ault | 1996 | Journal of Propulsion and Power1996，，1： | 1 |
| 7 | Pulsed-modulated control synthesis for a flexible spacecraft显示文摘 | Tobin T C Wie B | 1990 | AIAA Journal of Guidance Control and Dynamics1990，13，6： | 1 |
| 8 | Pathogenetie justification of statin use in ischaemic stroke prevention according to inflammatory theory in development of atherosclerosis 显示文摘 | Kotlega D Cie wie S Turowska-Kowalska J | 2012 | Neurol Neurochir Po12012，46，： | 1 |
| 9 | New approach to Halo orbit determination and control显示文摘 | Cielaszyk D Wie B | 1996 | Journal of Guidance Control and Dynamics1996，19，2： | 1 |
| 10 | Robust control moment gyro- scope steering logic with gimbal angle constraints 显示文摘 | LAPPAS V J WIE B | 2009 | Journal of guidance control and dynamic2009，32，5： | 1 |
| 11 | Combined SIMS,AES,and XPS investigations of tantalum oxide layers显示文摘 | Bispinck H Ganschow O Wie dmarm L | 1979 | Appl Phys1979，18，2： | 1 |
| 12 | The effect of dextrin on surface properties and the flotation of molybdenite显示文摘 | WIE J M FUERSTENAU D W | 1974 | International Journal of Mineral Processing1974，1，1： | 1 |
| 13 | New approach to halo orbit deter- mination and control显示文摘 | Cielaszyk D Wie B | 1996 | Journal of Guidance Control and Dynamics1996，19，2： | 1 |
| 14 | Singularity escape/avoidance steering logic for control moment gyro systems 显示文摘 | Wie B | 2005 | Journal of Guidance Control and Dynamics2005，28，5： | 1 |
| 15 | Fast recursive algorithm for two-dimensional thresholding 显示文摘 | Jian Gong Yuan Li Li Nan Chen Wie | 1998 | Pattern Recognition1998，31，3： | 1 |
| 16 | Dynamics and control of gravity tractor spacecraft for asteroid deflection 显示文摘 | WIE Bong | 2008 | Journal of Guidance Control and Dynamics2008，31，5： | 1 |
| 17 | Comparison of coating and immunizing antigen structure on the sensitivity and specificity of immunoassays for benzoylphenyl urea insecticides 显示文摘 | Wie S I Hammock B D | 1984 | Journal of Agricultural and Food Chemistry1984，32，6： | 1 |
| 18 | Prevalence and risk factors of malnutrition among cancer patients according to tumor location and stage in the National Cancer Center in Korea显示文摘 | Wie GA Cho YA Kim SY | 2010 | Nutrition2010，26，3： | 1 |
| 19 | Thrust vector control analysis and design for so- lar-sail spacecraft显示文摘 | WIE B | 2007 | Journal of Spacecraft and Rock- ets2007，44，3： | 1 |
| 20 | Solar-sail attitude control design for a sail flight validation mission显示文摘 | WIE B MURPHY D | 2007 | Journal of Spacecraft and Rockets2007，44，4： | 1 |
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