Results 71 to 80 of about 148,565 (303)

Computer Simulation of 122 mm Ballistic Missile with a Modernized Rocket Motor [PDF]

open access: yesProblemy Mechatroniki, 2016
Technological changes have been proposed for a rocket motor 122 mm Grad missile, consisting in the exchange of homogeneous type of rocket propellant into the propellant with significantly increased calorific value and the higher unit pulse.
Bogdan ZYGMUNT, Krzysztof MOTYL
doaj   +1 more source

Behaviour of Colloidal Rocket Propellants [PDF]

open access: yesNature, 1951
Internal Ballistics of Solid-Fuel Rockets Military Rockets using Dry-processed Double-Base Propellant as Fuel. By R. N. Wimpress. Pp. xii + 214. (London: McGraw-Hill Publishing Co., Ltd., 1950.) 38s. 6d.
openaire   +2 more sources

On the politics of movement: Borderscapes, choreopolicing and choreopolitics

open access: yesTransactions of the Institute of British Geographers, EarlyView.
Short Abstract The paper introduces choreography as a novel tool of analysis for investigating how movement shapes and is shaped by the apparatus of territorial security. It examines how dance choreography can intervene in security imperatives and enact embodied transgression.
Charlotte Veal
wiley   +1 more source

SIMULATION OF THE ACCIDENTAL POLLUTION AFTER THE EMERGENCY IN TO THE STORAGE OF ROCKET SOLID PROPELLANT

open access: yesNauka ta progres transportu, 2014
Purpose. Development of the operational numerical model to compute contamination of the atmosphere over Pavlograd city in the case of solid rocket propellant ignition at the storage. Methodology. To simulate the toxic chemical dispersion (product of the
M. M. Biliaiev   +2 more
doaj   +1 more source

Small rocket engine Patent [PDF]

open access: yes, 1967
Regenerative cooling system for small rocket engine having restart capability and using noncryogenic hypergolic ...
Latto, W. T., Jr.
core   +1 more source

Left to Live and Die: Resource Security and the Biopolitics of Land Stockpiling in China

open access: yesAntipode, Volume 57, Issue 6, Page 2103-2123, November 2025.
Abstract Beginning in 2007, the Chinese state used liberalising policy and funding to encourage the expansion of large‐scale grain farming. Despite this support, many of the new farms have struggled financially and folded. Drawing on Foucauldian biopolitics and resource security literature, I argue that, with modernised agriculture, the state primarily
Ross Doll
wiley   +1 more source

Determination of Glass Transition Temperature of Double-base Rocket Propellants with the Use of Dynamic Mechanical Analysis [PDF]

open access: yesProblemy Mechatroniki, 2015
The paper presents results of Dynamic Mechanical Analysis (DMA) of double-base (DB) solid rocket propellant with special attention paid to determining the glass transition temperature. The presented experiments were carried out with the use of Netzch DMA
Marcin CEGŁA   +5 more
doaj   +1 more source

The Impact of Intracloud Negative Branches on Continuing Current in Negative Cloud‐to‐Ground Lightning

open access: yesGeophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Continuing current (CC) in cloud‐to‐ground (CG) lightning plays a critical role, particularly in wildfire ignition, yet CC's mechanism remains an open question. This study analyzes six CG flashes captured by the high‐speed camera at Beijing and Lhasa, which reveal the propagation of intracloud negative leaders before and after each return ...
Jizhou Feng   +12 more
wiley   +1 more source

EMERGENCY BURNING OF SOLID ROCKET PROPELLANT: DAMAGE RISK ASSESSMENT TO PEOPLE IN THE WORKPLACE

open access: yesNauka ta progres transportu, 2020
Purpose. This work includes the development of a computer model to calculate the risk of thermal damage to people in the shop in case of emergency burning of solid rocket propellant. Methodology. To calculate the temperature field in the shop in order to
M. M. Biliaiev   +4 more
doaj   +1 more source

Impact of Advances in Anion Exchange Membranes and Ionomers on Alkaline Fuel Cells

open access: yesChemistry – An Asian Journal, Volume 20, Issue 18, September 15, 2025.
Advances in anion exchange membranes (AEMs) and ionomer design have propelled alkaline fuel cells toward unprecedented performance, with peak power densities exceeding 3.5 W cm⁻2. This review highlights how molecular‐level innovations— stable hydrocarbon backbones, robust cationic groups, and pH‐gradient‐enabled bipolar interfaces—enable durable, high ...
Zhongyang Wang   +3 more
wiley   +1 more source

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