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7.899  Articles
1 of 791 pages  |  10  records  |  more records»
A series of paraffin-based hybrid rocket fuel has been studied experimentally in a laboratory-scale motor. To enhance the regression rate of paraffin solid fuel, three types of grain configurations: Cylindrical, star, and helical grain configurations o... see more

This paper presents the design of a hybrid rocket motor and the experiments carried out for investigation of hybrid combustion and regression rates for a combination of liquid oxidiser red fuming nitric acid with solid fuel hydroxyl-terminated Polybutadie... see more

The present numerical work investigates the effect of a combination of two known regression rate enhancement techniques, namely diaphragm located in the port and swirling oxidizer flow at the inlet. Diaphragm enhances regression rate by heat transfer enha... see more

With their unique operational characteristics, hybrid rockets can potentially provide safer, lower-cost avenues for spacecraft and missiles than the current solid propellant and liquid propellant systems. Classical hybrids can be throttled for thrust tail... see more

The calculation of rocket trajectories is most often performed using purely numerical methods that account for all relevant parameters and provide the required results. There is a complementary need for analytical methods that make more explicit the effec... see more

During the last 40 years, the mass of orbiting objects increased at the rate of about 145 metric tons annually, leading to a total of approximately 7000 metric tons. Most of the cross-sectional area and mass (97% in low Earth orbit, LEO) is concentrated i... see more

The main aim of the paper is to verify the feasibility of application of such  common materials as paraffin and polyethylene for a small-sized single-port fuel grain in hybrid rocket motors at low temperature conditions. The simplified analytical met... see more

The current state of space activity in the field of defense of Ukraine does not fully provide for the solution of the tasks of the state’s defense capability and requires substantial improvement. In particular, the direction of monitoring near-Earth space... see more

Penelitian ini bertujuan untuk mendeskripsikan kemampuan penalaran matematis siswa SMPIT Raudhatul Jannah ditinjau dari multiple intelligence pada pembelajaran hybrid. Penelitian ini menggunakan metode kualitatif deskriptif. Subjek penelitian terdapat 3 s... see more

1 of 791 pages  |  10  records  |  more records»