Results 91 to 100 of about 2,594,304 (350)

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

Advanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju, Roshan Velluvakandy, Xianghua Wu, Miguel Angel Merlos Rodrigo, Zbyněk Heger, Kamila Bendíčková, Jan Frič, Martin Pumera   +7 more
wiley   +1 more source

Numerical analysis of transient combustion response to acoustic oscillations in axisymmetric rocket motors [PDF]

, 1998
A numerical analysis of unsteady motions in solid rocket motors with a nozzle has been conducted. The formulation treats the complete conservation equations for the gas phase and the one-dimensional equations in the radial direction for the condensed
Culick, F. E. C., Roh, T. S.
core   +1 more source

Functional Metal Complexes for Solar–Light‐Driven Energy Conversion

Advanced Materials, EarlyView.
This review provides an exhaustive summary of the recent advancements of functional metal complexes in solar‐to‐electrical, ‐chemical, and ‐thermal energy conversion, comprising material categories, design strategies, underlying principles of operation, and identified improvement of performances.
Yanyan Qin, Dou Luo, Miao Zhang, Wai‐Yeung Wong   +3 more
wiley   +1 more source

The Application of the Particle Element Method in Tubular Propellant Charge Structure: Lumped Element Method and Multiple-Element Method

Energies
Due to the orderly arrangement of tubular propellant, the permeability of combustion gases is improved, which is beneficial for enhancing the safety of the combustion system.
Ruyi Tao, Shenshen Cheng, Xinggan Lu, Shao Xue, Xiaoting Cui   +4 more
doaj   +1 more source

Review of solid propellants for space exploration [PDF]

Solid propellants for space vehicles and spacecraft fuel ...
Hendel, F. J.
core   +1 more source

Aging Effects on the Burning Rates of Composite Solid Propellants with Nano-Additives

Journal of Propulsion and Power, 2019
The aging behavior of composite propellant is a key parameter in determining the usable service life of an energetic system.
James C. Thomas, T. Sammet, C. A. Dillier, A. Demko, F. A. Rodriguez, E. Petersen   +5 more
semanticscholar   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Ferrocene-fullerene dyad as a novel burn rate modifier for propellants

Energetic Materials Frontiers
The burn rate of composite rocket propellants serves as a critical ballistic parameter in the construction of a rocket engine. Due to their large surface areas, carbon-based materials such as carbon nanotubes, graphene, and fullerene have demonstrated ...
Shrutika Sriramrao, Parveen Raman, Akash Dhas, Shaibal Banerjee   +3 more
doaj   +1 more source

WLF equation theoretical basis analysis and a method for determining the shift factor in solid propelants

Vojnotehnički Glasnik, 1996
In order to verify the WLF equation theoretical basis and its universal character, free volumes of several types of solid propellants were measured and the values of empirical constants were analysed.
Radun Jeremić
doaj   +1 more source

On the characterization of multiaxial data in terms of the strain energy concept [PDF]

Continuous media theory for characterization of multiaxial mechanical behavior of solid propellants - strain energy ...
San Miguel, A.
core   +1 more source