Showing 141 - 160 results of 194 for search '"rocket"', query time: 0.04s Refine Results
  1. 141
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  3. 143

    Mechanics Design of Conical Spiral Structure for Flexible Coilable Antenna Array by Hairui Wang, Yao Zhang, Siyu Chen, Yinji Ma, Heling Wang, Ying Chen, Xue Feng

    Published 2022-01-01
    “…Limited by the effective launch capacity of a rocket, the deployable antenna is very important in the design of spaceborne antenna array. …”
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  4. 144

    Static Equilibrium Characteristics of Full-Flow Staged Combustion Cycle Engine Under Different Propellants by Haodong He, Nanjia Yu, Sihan Di, Guobiao Cai, Chuang Zhou, Lihao Zheng

    Published 2024-01-01
    “…The full-flow staged combustion cycle (FFSC) engine is a promising liquid rocket propulsion system owing to its capacity for high specific impulse. …”
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  5. 145

    Model-Based Leakage Estimation and Remaining Useful Life Prediction of Control Gas Cylinder by Zhenzhen Zhang, Hui Chen, Chao Qi, Yazhou Liu

    Published 2023-01-01
    “…To evaluate the effectiveness of the proposed method, scaling leakage test data, computational fluid dynamics (CFD) simulation results, and liquid rocket engine (LREs) hot test data are used. Calibration results have proved the validity and universality of the method, with the mean absolute error (MAE) for the remaining 80% useful life prediction results being less than 0.02, 0.04, and 1.10. …”
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  6. 146

    Investigation on Acoustic Properties of Thruster Chamber with Coaxial Injectors and Plenum Chamber by Dekun Gao, Jianxiu Qin, Huiqiang Zhang

    Published 2020-01-01
    “…Based on the URANS equation, a numerical simulation is carried out for acoustic properties of the thruster chamber with coaxial injectors and plenum chamber in a liquid rocket engine. Pressure oscillations with multiacoustic modes are successfully excited in the chamber by using the constant volume bomb method. …”
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  7. 147

    Transfer functions of a time-varying control system by Volt Avdieiev

    Published 2024-06-01
    “…The task is to show the possibility of obtaining a second-order transfer function, which is equivalent to the LTV on a certain trajectory section, using the example of the system for controlling the rotational motion of a rocket in one plane. The concept of a transfer function is based on the integral Laplace transform, which maps the time function to complex argument function. …”
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  8. 148

    A Systematic Study of Inverting Overlappograms: MaGIXS—A Case Study by P. S. Athiray, Arthur Hochedez, Amy R. Winebarger, Dyana Beabout

    Published 2025-01-01
    “…An unfolding method is successfully developed and demonstrated on the recent rocket flight of the Marshall Grazing Incidence X-ray Spectrometer, which observed several strong emission lines in the 8–30 Å wavelength range from two X-ray bright points and a portion of an active region. …”
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  9. 149

    Future of antimatter production, storage, control, and annihilation applications in propulsion technologies by Sawsan Ammar Omira, Abdel Hamid I. Mourad

    Published 2025-01-01
    “…Compared to traditional rocket fuel and nuclear power, antimatter propulsion promises significant environmental benefits by reducing carbon emissions and radioactive waste. …”
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  10. 150

    The Analytical Method to Compute the Strain on the Soft PSD in Double-Pulse SRM by Chunguang Wang, Guiyang Xu

    Published 2019-01-01
    “…In order to study the failure mechanism of the soft PSD in the double-pulse solid rocket motor (SRM), a two-dimensional axisymmetric finite element method (FEM) model of the stress process of the soft PSD is established. …”
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  11. 151

    Rheokinetic Analysis of Hydroxy Terminated Polybutadiene Based Solid Propellant Slurry by Abhay K Mahanta, Monika Goyal, Devendra D Pathak

    Published 2010-01-01
    “…This opens up an avenue for a “freeze-and-store”, then “warm-up and cast”, mode of manufacturing of very large solid rocket propellant grains.…”
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  12. 152

    Modeling Loss-of-Flow Accidents and Their Impact on Radiation Heat Transfer by Jivan Khatry, Fatih Aydogan

    Published 2017-01-01
    “…The National Aeronautics and Space Administration (NASA) investigated several reactor designs from 1959 to 1973 in order to develop the Nuclear Engine for Rocket Vehicle Application (NERVA). Study of planned/unplanned transients on nuclear thermal rockets is important due to the need for long-term missions. …”
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  13. 153
  14. 154

    Cost-effectiveness Analysis of Rivaroxaban versus Acenocoumarol in the Prevention of Stroke in Patients with Non-valvular Atrial Fibrillation in Spain by Carlos Rubio-Terrés, Ruth Graefenhain de Codes, Darío Rubio-Rodríguez, Thomas Evers, Santiago Grau Cerrato

    Published 2016-02-01
    “…**Methods:** A Markov model was designed and populated with local cost estimates, efficacy and safety of rivaroxaban in stroke prevention in NVAF compared with adjusted-dose warfarin clinical results from the pivotal phase III ROCKET AF trial and utility values obtained from the literature. …”
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  15. 155

    Low-carbon ammonia-based fuel for maritime transport by A.A. Levikhin, A.A. Boryaev

    Published 2025-03-01
    “…Calculated equilibrium values ​​of the energy characteristics of fuels based on liquid ammonia are presented, as well as the results of calculations when using ammonia as a working fluid for electric heating and nuclear rocket engines. The physicochemical properties and thermodynamic characteristics of liquid ammonia, depending on temperature, presented in the article allow developing technologies for its effective and safe use and can be used as reference material.…”
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  16. 156

    Homogeneous Model in Finite Element Analysis for Natural Frequency Calculation of Axisymmetric Shells by Volodymyr Lipovskyi

    Published 2024-11-01
    “…The article presents an original analysis of a real case where a simplified model was implemented to determine the natural harmonics of a liquid rocket engine nozzle, making it a valuable tool for studying complex structures. …”
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  17. 157

    Justification scheme for milling waffle background by E. V. Krivonos

    Published 2021-10-01
    “…All this generally affects the perception of design loads and the carrying capacity of the rocket. At the same time, the methods and processes of processing the waffle background should be productive and economically feasible. …”
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  18. 158

    A computational fluid dynamics analysis of the aerodynamic influence of angles of attack on the Skylon spaceplane by Vivekamanickam Koothan Venkateswaran, Unai Fernandez Gamiz, Ana Boyano, Jesus Maria Blanco

    Published 2025-01-01
    “…The analysis focuses on the aerodynamics of the Skylon spaceplane and the Synergistic Air-Breathing Rocket Engine to understand their impact on single-stage reusable vehicles in the aerospace sector. …”
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  19. 159
  20. 160

    An Approach to Analysing Erosive Characteristics of Two-Channel Combustion Chambers by Yanjie Ma, Futing Bao, Weihua Hui, Yang Liu, Ran Wei

    Published 2019-01-01
    “…Combining the model with two different erosive burning models, the modified L-R expression, and the Mukunda-Paul expression, the flow parameters and the internal ballistics performance of a test solid rocket motor are computed. The results show good agreement with experimental data. …”
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