Results 71 to 80 of about 353,289 (314)

Personal communications services : improving theater deployable communications for the 21st century [PDF]

open access: yes, 1994
Personal Communications Services (PCS) may be the key ingredient for vastly improved military communications capabilities at the turn of the century.
Cournoyer, Ronald C.
core  

Ti3C2Tx MXene/Silver Composite Foams For Lightweight, High‐Performance Electromagnetic Interference Shielding and Joule Heating

open access: yesAdvanced Materials Interfaces, EarlyView.
Ultrathin MXene/EMF composite foams achieve a specific shielding efficiency of 749.6 dB.dB·cm3$\mathrm{dB}\cdot {\mathrm{cm}}^{3}$/g, while the silver‐enhanced MXene/Ag/EMF reaches 81.4 dB shielding effectiveness at just 1.0 mm thickness. Both composites exhibit rapid Joule heating, retain stability up to 250∘C$^\circ{\rm C}$, and withstand 1000 ...
Abdullah A. Mahmood   +7 more
wiley   +1 more source

Review of DC-DC Partial Power Converter Configurations and Topologies

open access: yesEnergies
The Partial Power Processing (PPP) concept has garnered attention as it enables the down-sizing of converter and component ratings. Unlike conventional power processing, PPP addresses a portion of the transferred power, leading to a reduction in ...
Omar Gsous   +3 more
doaj   +1 more source

United States Marine Corps Expeditionary Rifle Squad Communications [PDF]

open access: yes, 2009
This CAPSTONE Report documents the Systems Engineering (SE) efforts of "Team Marine," from JAN 2009 to SEP 2009, in developing a recommendation to the US Marine Corps Systems Command (MCSC), on the best course of action to 'Enhance the USMC Expeditionary
Amin, Kruna   +9 more
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Other title: IT Service Catalog; Other title: Information Technology Service Catalog; Other title: Service Catalog

open access: yes, 2009
application/pdf; "July 2009.""The Division of Information Systems and Communications, also known as DISC, is a fee-based organization comprised of seven operational units that deliver 24 x 7 central information technology services such as statewide data,
Kansas. Department of Administration. Division of Information Systems and Communications.
core  

Analysis of Transmission Methods for Ultra-Reliable Communications [PDF]

open access: yes, 2015
Fifth generation of cellular systems is expected to widely enable machine-type communications (MTC). The envisioned applications and services for MTC have diverse requirements which are not fully supported with current wireless systems.
Iraji, Sassan   +5 more
core   +1 more source

Additive Manufacturing of Patient‐Specific Intracranial Aneurysm Cell Culture Models

open access: yesAdvanced Materials Technologies, EarlyView.
Patient‐specific intracranial aneurysm models were fabricated using chocolate moulding, 3D printed water‐soluble cores, and direct resin 3D printing. Moulding PDMS around sacrificial cores made of chocolate or 3D printed water‐soluble resin yielded accurate, expandable, and endothelializable models that outperformed resin‐based approaches.
Chloe M. de Nys   +6 more
wiley   +1 more source

Direct numerical simulation of turbulent channel flow with opposition control based on nonlinear forecasting

open access: yesJournal of Fluid Science and Technology
As skin-friction drag in wall turbulence has a considerable environmental impact, a feedback control technique is applied to provide the drag reduction effect.
Togo TERUI   +4 more
doaj   +1 more source

Other title: IT Service Catalog; Other title: Information Technology Service Catalog; Other title: Service Catalog

open access: yes, 2010
application/pdf; "July 2010.""The Division of Information Systems and Communications, also known as DISC, is a fee-based organization comprised of seven operational units that deliver 24 x 7 central information technology services such as statewide data,
Kansas. Department of Administration. Division of Information Systems and Communications.
core  

Home - About - Disclaimer - Privacy