Results 101 to 110 of about 9,538 (308)

The investigation of flame spreading over the surface of igniting solid propellants Final summary report [PDF]

open access: yes
Flame spreading over surface of igniting solid propellants in different gas mixtures at various ...
Magee, R. S., Mc Alevy, R. F., III
core   +1 more source

Physical Intelligence in Small‐Scale Robots and Machines

open access: yesAdvanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +1 more source

Investigation of the Combustion Products of Ionic Liquid-Based Green Propellants Using Infrared Spectroscopy

open access: yesAerospace
In rocketry today, conventional hypergolic propellant combinations typically use hydrazine-derived fuels and oxidizers based on nitrogen tetroxide. Due to their high toxicity and consequently expensive handling, safer alternatives, so-called “green ...
Jacob Oberndorfer   +4 more
doaj   +1 more source

Photographic investigation of propellant stream behavior in a firing rocket engine, volume I Technical summary report, 1 Aug. 1964 - 28 Feb. 1966 [PDF]

open access: yes
Photographic study to obtain injection and combustion patterns of F-1 rocket engine injector ...
Eulner, R. N.   +2 more
core   +2 more sources

Emergent Motility of Self‐Organized Particle‐Giant Unilamellar Vesicle Assembly

open access: yesAdvanced Materials, EarlyView.
Giant unilamellar vesicles (GUVs), when combined with silica particles under alternating electric fields, spontaneously self‐assemble into motile structures. Asymmetric particle decoration induces fluid flows that propel the assemblies, enabling persistent motion and reversible control.
Selcan Karaz   +5 more
wiley   +1 more source

Experimental Research into an Innovative Green Propellant Based on Paraffin–Stearic Acid and Coal for Hybrid Rocket Engines

open access: yesInventions
This 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

Embracing green HRM: Propelling organizational sustainability forward

open access: yesEnvironment and Social Psychology
The most crucial resource for any corporation to succeed in the competitive business environment of today is its human capital. The additional responsibility of incorporating green HR ideals into the company’s mission statement along with HR strategies has been assigned to modern HR leaders as a means of accomplishing sustainable environmental goals ...
Saloni Devi   +4 more
openaire   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Research on Micro-Propulsion Performance of Laser Ablation ADN-Based Liquid Propellant Enhanced by Chemical Energy

open access: yesAerospace
The vigorous development of micro–nano satellites urgently requires satellite-borne propulsion systems as support. Pulsed laser ablation micro-propulsion can meet these high demands. Ammonium dinitramide (ADN), as a green monopropellant, can serve as the
Luyun Jiang   +7 more
doaj   +1 more source

An evaluation of metallized propellants based on vehicle performance [PDF]

open access: yes
An analytical study was conducted to determine the improvements in vehicle performance possible by burning metals with conventional liquid bipropellants.
Green, James M., Zurawski, Robert L.
core   +1 more source

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