Optimization of CO2 production rate for firefighting robot applications using response surface methodology [PDF]
, 2018 A carbon dioxide gas-powered pneumatic actuation has been proposed as a suitable power source for an autonomous firefighting robot (CAFFR), which is designed to operate in an indoor fire environment in our earlier study.
Ajala, MT +5 more
core +4 more sources
A Simple High-Precision 2-Port Vector Analyzer
IEEE Access, 2020 This article presents a novel concept for a highly accurate and simple two-port vector signal analyzer. A current phase ratio measurement method is defined for one independent external signal with a restriction of the measuring range ±90 or ...
Jan Labun +7 more
doaj +1 more source
Preliminary studies of electromagnetic sounding of cometary nuclei [PDF]
The internal structure of a comet could be determined with a spacecraft borne electromagnetic sounder. A dielectric profile of the comet could be produced in direct analogy with terrestrial glacier and ice sheet sounding experiments.
Bednarczyk, S. +3 more
core +1 more source
The LifeV library: engineering mathematics beyond the proof of concept [PDF]
, 2017 LifeV is a library for the finite element (FE) solution of partial differential equations in one, two, and three dimensions. It is written in C++ and designed to run on diverse parallel architectures, including cloud and high performance computing ...
Bertagna, Luca +4 more
core +1 more source
Tunable macroscale structural superlubricity in two-layer graphene via strain engineering
Nature Communications, 2020 Superlubricity in macro-scale graphitic samples is hampered by commensurate stacking domains that prevent facile sliding between adjacent graphene layers.
Charalampos Androulidakis +4 more
doaj +1 more source
NASA Lewis Research Center's Program on Icing Research [PDF]
The helicopter and general aviation, light transport, and commercial transport aircraft share common icing requirements: highly effective, lightweight, low power consuming deicing systems, and detailed knowledge of the aeropenalties due to ice on ...
Olsen, W. A., Jr. +2 more
core +1 more source
Benefits of the Cook Inlet Ferry to the Municipality of Anchorage [PDF]
, 2009 The purpose of this study is to examine the economic benefits of the Cook Inlet Ferry to the Municipality of Anchorage. The Cook Inlet Ferry is currently being built at the Ketchikan, Alaska shipyard. The U.S.
Colt, Steve, Szymoniak, Nick
core
A sublimation heat engine [PDF]
, 2015 Heat engines are based on the physical realization of a thermodynamic cycle, most famously the liquid–vapour Rankine cycle used for steam engines. Here we present a sublimation heat engine, which can convert temperature differences into mechanical work ...
Ledesma-Aguilar, Rodrigo +3 more
core +1 more source
A simple model to estimate atmospheric concentrations of aerosol chemical species based on snow core chemistry at Summit, Greenland [PDF]
, 1995 A simple model is presented to estimate atmospheric concentrations of chemical species that exist primarily as aerosols based on snow core/ice core chemistry at Summit, Greenland. The model considers the processes of snow, fog, and dry deposition.
Bergin, M H +5 more
core +2 more sources
Experimental Heat Transfer Supporting Simulated Water Well Performance on Mars [PDF]
Favorable indications of massive quantities of water on Mars have initiated studies of potential changes to human Mars missions. Using a technique known as a Rodriguez Well to melt the ice, store the resulting water in a subsurface ice cavity until ...
Andrews, Alida D. +3 more
core +1 more source