Results 81 to 90 of about 319,688 (207)

Dual Mode Hydrazine Propulsion System [PDF]

open access: yes
Dual mode hydrazine propulsion system for attitude control and maneuvering of interplanetary ...
Butcher, W. W., Morgan, N. E.
core   +1 more source

Communication system features dual mode range acquisition plus time delay measurement [PDF]

open access: yes, 1968
Communication system combines range acquisition system and time measurement system for tracking high velocity aircraft and spacecraft. The range acquisition system uses a pseudonoise code to determine range and the time measurement system reduces ...
Atwood, S. W.   +2 more
core   +1 more source

Frustration of Bragg reflection by cooperative dual-mode interference: a new mode of optical propagation [PDF]

open access: yes, 1998
A new optical mode of propagation is described, which is the natural eigenmode (supermode) of a fiber (or any optical waveguide) with two cospatial periodic gratings.
Yariv, Amnon
core   +1 more source

Circular Dichroism and Cross Polarization Conversion Using Chiral Metasurface

open access: yesIEEE Open Journal of Antennas and Propagation
This paper presents a novel dual-mode chiral metasurface (CM) designed to achieve strong circular dichroism (CD) in both transmission and reflection mode within the Ku-band.
Muhammad Noman   +6 more
doaj   +1 more source

Dual-mode dual-band microstrip filters

open access: yes2009 European Microwave Conference (EuMC), 2009
A compact dual-band microstrip bandpass filter is proposed using dual-mode resonators. Two microstrip loop resonators, one within the other, are employed to obtain dual-mode dual-band filter responses. Each loop resonator uses two loading elements to excite dual modes.
Karpuz, Ceyhun, Görür, Adnan
openaire   +6 more sources

Context-Aware Scheduling of Joint Millimeter Wave and Microwave Resources for Dual-Mode Base Stations

open access: yes, 2016
One of the most promising approaches to overcome the drastic channel variations of millimeter wave (mmW) communications is to deploy dual-mode base stations that integrate both mmW and microwave (\muW) frequencies.
Bennis, Mehdi   +2 more
core   +1 more source

Dual mode nanoparticles: CdS coated iron nanoparticles [PDF]

open access: yes, 2010
Reverse micelles can be used in a sequential fashion to make core-shell nanoparticles. Using this technique it is possible to make a magnetic quantum dot, by coating an iron core with a cadmium sulfide shell.
Carpenter, E. E.   +2 more
core   +2 more sources

Multistage depressed collector with efficiency of 90 to 94 percent for operation of a dual-mode traveling wave tube in the linear region [PDF]

open access: yes
An axisymmetric, multistage, depressed collector of fixed geometric design was evaluated in conjunction with an octave bandwidth, dual mode traveling wave tube (TWT). The TWT was operated over a wide range of conditions to simulate different applications.
Fox, T. A., Ramins, P.
core   +1 more source

Computational analysis of scramjet dual mode operation [PDF]

open access: yes
One critical element in the design of a Scramjet is the detailed understanding of the complex flow field in the engine during various phases of operation.

core   +1 more source

Thermodynamic Analysis of Dual-Mode Scramjet Engine Operation and Performance [PDF]

open access: yes, 2006
Recent analytical advances in understanding the performance continuum (the thermodynamic spectrum) for air-breathing engines based on fundamental second-law considerations have clarified scramjet and ramjet operation, performance, and characteristics ...
Auslender, Aaron   +3 more
core   +1 more source

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