Results 81 to 90 of about 362 (192)
InventionsThis study focuses on an innovative green propellant based on paraffin, stearic acid, and coal, used in hybrid rocket engines. Additionally, lab-scale firing tests were conducted using a hybrid rocket motor with gaseous oxygen as the oxidizer, utilizing ...
Grigore Cican +5 more
doaj +1 more source
Macromolecular Materials and Engineering, Volume 311, Issue 8, August 2026.Conducting polymer/metal‐oxide nanocomposites emerge as highly promising chemiresistive sensing materials for environmental gas monitoring. Recent advances reveal strong synergistic effects that enhance sensitivity, selectivity, stability, and response kinetics while enabling lower‐temperature operation.
Katekani Shingange +5 more
wiley +1 more source
Earth and Space Science, Volume 13, Issue 8, August 2026.Abstract This study examines the impact of assimilating all‐sky microwave radiances from the Time‐Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats (TROPICS) mission within the NASA Global Earth Observing System (GEOS) data assimilation and forecasting framework based on the Gridpoint Statistical ...
Min‐Jeong Kim +4 more
wiley +1 more source
Polymer‐Derived Ceramics: A Materials Platform for Advanced Energy and Environmental Applications
Journal of the American Ceramic Society, Volume 109, Issue 8, August 2026.Polymer‐derived ceramics (PDCs) represent a unique class of materials bridging polymer chemistry and ceramic science, perfectly suited for the design of advanced materials for current technological challenges of high societal impact particularly in energy and environmental domains.
Hippolyte Dory +2 more
wiley +1 more source
Towards an integrated molecular understanding of plant hormones
Journal of Integrative Plant Biology, Volume 68, Issue 8, Page 2787-2826, August 2026.This review offers a comprehensive overview of the nine plant hormones, delving into their biosynthesis, transport, signaling and crosstalk mechanisms. Because the complexity of plant hormonal control goes beyond these core elements, additional specific features are discussed. Lastly, this review highlights how fundamental insights drive hormonal‐based
Louise Vilain +2 more
wiley +1 more source
AN OPTIMIZED HYBRID ROCKET MOTOR FOR THE SARA PLATFORM REENTRY SYSTEM DOI 10.5028/jatm.2012.04032312
Journal of Aerospace Technology and Management, 2012 This paper has described a system design process, based on a multidisciplinary optimization technique, of a conceptual optimized hybrid propellant rocket motor. The proposed engine could be a technological option for the reentry maneuvering system of the
Pedro Luiz Kaled Da Cás +3 more
doaj
Hybrid Rocket Engine Burnback Simulations Using Implicit Geometry Descriptions
AerospaceThe performance of hybrid rocket engines is significantly influenced by the fuel geometry. Burnback simulations, to determine the fuel surface and fluid volume, are therefore an important tool for preliminary design.
Jan Erik Zeriadtke +2 more
doaj +1 more source
Using Hydrogen Peroxide for Rocket Fuel Tank Pressurization: Innovations, Advantages, and Challenges
Challenges and Issues of Modern ScienceThis paper explores the innovative use of hydrogen peroxide (H₂O₂) as a pressurizing agent for rocket fuel tanks, highlighting its potential to enhance efficiency and performance in rocket propulsion systems.
Mykhailo Vorobei, Mykola Bondarenko
doaj
Graphical Interface Applied in a Test System for Actuators Installed on a Rocket Engine Test Bench
AerospaceIn the space sector, test benches are facilities used to perform ground testing of rocket engines with solid, liquid, or hybrid propellants. These tests typically occur during the stages of development, validation, qualification, certification, and ...
Rogerio Oliveira de Paula +3 more
doaj +1 more source
Metal-organic frameworks as hypergolic additives for hybrid rockets. [PDF]
Chem Sci, 2022 Jobin O +8 more
europepmc +1 more source