Results 1 to 10 of about 214,191 (310)

Ultra-Wideband Vertical Transition in Coplanar Stripline for Ultra-High-Speed Digital Interfaces [PDF]

Sensors
A design method for an ultra-wideband coplanar-stripline-based vertical transition that can be used for ultra-high-speed digital interfaces is proposed.
Mun-Ju Kim, Jung-Seok Lee, Byung-Cheol Min, Jeong-Sik Choi, Sachin Kumar, Hyun-Chul Choi, Kang-Wook Kim   +6 more
doaj   +2 more sources

Effect of the Hopper Angle of a Silo on the Vertical Stress at the Cylinder-to-Hopper Transition [PDF]

Agronomy, 2022
Silos are used worldwide to store granular and powdered materials. Agricultural, food and feed products are commonly stored in silos. However, many questions remain unanswered about how to estimate the pressures applied by the bulk material, which are ...
Rômulo Marçal Gandia, Wisner Coimbra de Paula, Estácio Antunes de Oliveira Junior, Gerardo Hernández Rodrigo, Ángel Ruiz Padín, Alberto Tascón Vegas, Francisco Carlos Gomes, Pedro José Aguado Rodríguez   +7 more
doaj   +2 more sources

Monitoring Track Transition Zones in Railways

Sensors, 2021
This manuscript presents the first measurement program and data collection on the Dinatrans track transition solution after it was installed in a track section in the north of Spain (Galicia). The Dinatrans solution was created to address the limitations
Roberto Sañudo, Ignacio Jardí, José-Conrado Martínez, Francisco-Javier Sánchez, Marina Miranda, Borja Alonso, Luigi dell’Olio, Jose-Luis Moura   +7 more
doaj   +1 more source

Vertical Structure of the Arctic Spring Transition in the Middle Atmosphere [PDF]

Journal of Geophysical Research: Atmospheres, 2021
AbstractIn the middle atmosphere, spring transition is the time period where the zonal circulation reverses from winter westerly to summer easterly which has a strong impact on the vertical wave propagation influencing the ionospheric variability.
Matthias, Vivien, Stober, Gunter, Kozlovsky, Alexander, Lester, Mark, Belova, Evgenia, Kero, Johan, Stober, Gunter; 2 Institute of Applied Physics & Oeschger Center for Climate Change Research Microwave Physics University of Bern Bern Switzerland, Kozlovsky, Alexander; 3 Sodankylä Geophysical Observatory of the University of Oulu Sodankylä Finland, Lester, Mark; 4 University of Leicester Leicester UK, Belova, Evgenia; 5 Swedish Institute of Space Physics Kiruna Sweden, Kero, Johan; 5 Swedish Institute of Space Physics Kiruna Sweden   +10 more
openaire   +6 more sources

Study on Ducted Vertical Take-Off and Landing Fixed-Wing UAV Dynamics Modeling and Transition Corridor

Applied Sciences, 2021
An accurate description of the transition corridor is of great significance for the flight process of the vertical take-off and landing (VTOL) fixed-wing unmanned aerial vehicle (UAV).
Chunyang Wang, Zhou Zhou, Rui Wang, You Ding   +3 more
doaj   +1 more source

Experimental Verification of Excavated Structure on Multi-Layered Substrates for Millimeter-Wave Signal Vertical Transition Using Copper Balls

IEEE Access, 2020
This paper presents a vertical transition of millimeter-wave signal for interconnection between multi-layered substrates, which utilizes copper balls for vertical interconnection, as both for electrical connection and physical support. In particular, the
Satoshi Yoshida, Kenjiro Nishikawa
doaj   +1 more source

In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC⁴RS: observations of a modest aerosol enhancement aloft [PDF]

Atmospheric Chemistry and Physics, 2015
Vertical profiles of submicron aerosol from in situ aircraft-based measurements were used to construct aggregate profiles of chemical, microphysical, and optical properties. These vertical profiles were collected over the southeastern United States (SEUS)
N. L. Wagner, C. A. Brock, W. M. Angevine, A. Beyersdorf, P. Campuzano-Jost, D. Day, J. A. de Gouw, G. S. Diskin, T. D. Gordon, M. G. Graus, J. S. Holloway, G. Huey, J. L. Jimenez, D. A. Lack, J. Liao, X. Liu, M. Z. Markovic, A. M. Middlebrook, T. Mikoviny, J. Peischl, A. E. Perring, M. S. Richardson, T. B. Ryerson, J. P. Schwarz, C. Warneke, A. Welti, A. Wisthaler, L. D. Ziemba, D. M. Murphy   +28 more
doaj   +1 more source

Research on Transition Corridor of Ducted Vertical Take-off and Landing Fixed-wing UAV

Hangkong gongcheng jinzhan, 2022
The accurate description of the transition corridor is important for vertical take-off and landing(VTOL)fixed-wing unmanned aerial vehicle(UAV)flight. In order to study the transitional flight process of VTOL fixedwing UAV,a transition corridor model of ...
WANG Chunyang, ZHOU Zhou
doaj   +1 more source

Study on different solutions to reduce the dynamic impacts in transition zones for high-speed rail [PDF]

Journal of Theoretical and Applied Vibration and Acoustics, 2017
One of the most important factors influencing the track maintenance is the transitions between parts of the track with different vertical stiffness. The dynamic forces in the super-structure, i.e.
Roberto Sañudo, Valeri Markine, João Pombo   +2 more
doaj   +1 more source

Disimplicial arcs, transitive vertices, and disimplicial eliminations [PDF]

Discrete Mathematics & Theoretical Computer Science, 2015
In this article we deal with the problems of finding the disimplicial arcs of a digraph and recognizing some interesting graph classes defined by their existence. A <i>diclique</i> of a digraph is a pair $V$ &rarr; $W$ of sets of vertices such that $v$ &rarr; $w$ is an arc for every $v$ &isin; $V$ and $w$ &isin; $W$. An arc $
Martiniano Eguía, Francisco J. Soulignac   +1 more
openaire   +4 more sources