Results 101 to 110 of about 520,173 (313)

Interference Effects in Relativistic Deuteron Electrodisintegration

, 1993
We extend the relativistic plane--wave impulse approximation formalism to incorporate a specific class of relativistic interference effects for use in describing inclusive electrodisintegration of $^2$H.
Adam, Alberico, Alberico, Arenhövel, Beck, Brueckner, Caballero, Caballero, Day, de Forest, de Forest, Devine, Dieperink, Donnelly, Donnelly, Dytman, Fabian, Fearing, Fearing, Foldy, Frankfurt, Frullani, G.I. Poulis, Galster, Gouweloos, Gross, Hadjimichael, Heidmann, Hummel, Jaffe, Levinger, Mathiot, Naus, Poulis, Raskin, Schoch, T.W. Donnelly, Tjon, Tjon, van der Schaar, Walecka   +40 more
core   +1 more source

Health Care Use Among Patients Presenting to Emergency Department for Gout Flares in Ontario, Canada: A Population‐based Health Systems Analysis

Arthritis Care &Research, Accepted Article.
Objective We characterized emergency department (ED) gout visits and identified patient characteristics and health services patterns contributing to ED presentations. Methods We conducted a population‐based study of ED gout visits in Ontario, Canada between 2014 and 2023.
Timothy S.H. Kwok, Samantha Morais, William K. Silverstein, Clare L. Atzema, Gregory Choy, Priyanka Chandratre, Ping Li, Jessica Widdifield   +7 more
wiley   +1 more source

A Flight Demonstration of Plasma Rocket Propulsion [PDF]

, 2000
The Advanced Space Propulsion Laboratory at the NASA Johnson Space Center has been engaged in the development of a variable specific impulse magnetoplasma rocket (V ASIMR) for several years.
Chang-Diaz, Franklin, Hitt, Michael, Lepore, Joseph, Petro, Andrew, Schwenterly, WIlliam   +4 more
core   +1 more source

Deuteron spin structure functions in the resonance and DIS regions

, 2008
We derive relations between spin-dependent nuclear and nucleon g_1 and g_2 structure functions within the nuclear impulse approximation, which are valid at all Q^2, and in both the resonance and deep inelastic regions.
Kulagin, S. A., Melnitchouk, W.
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Review of novel energetic polymers and binders – high energy propellant ingredients for the new space race

Designed Monomers and Polymers, 2019
Current solid rocket propellant formulations still employ traditional ingredients utilized since the 1960s, such as hydroxyl terminated polybutadiene (HTPB).
Tianze Cheng
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Analysis of carbon nano particle variant as the propellant fuel to increase specific impulses of rockets [version 3; peer review: 1 approved, 2 approved with reservations]

F1000Research
Background This study compares propellant fuels’ specific thrust and impulse parameters using nanocarbon variant fuels from coconut shells and coal. Specific impulses and impulses are essential parameters that determine rocket performance.
MAE Hafizah, Y Ruyat, RDA Navalino, NRS Muda   +3 more
doaj   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

Upper stages utilizing electric propulsion [PDF]

The payload characteristics of geocentric missions which utilize electron bombardment ion thruster systems are discussed. A baseline LEO to GEO orbit transfer mission was selected to describe the payload capabilities.
Byers, D. C.
core   +1 more source