Results 71 to 80 of about 20,713 (214)

Broadband circularly polarized antennas for UHF SATCOM [PDF]

open access: yes, 2011
Novel circularly polarized (CP) antenna configurations derived from Moxon type antenna (bent dipole element over a ground plane) for broadband VHF SATCOM applications.
Manzhura, Oksana   +3 more
core   +1 more source

The Impact of Mandatory Food-Marketing Regulations on Purchase and Exposure: A Narrative Review

open access: yesChildren, 2023
(1) Background: Several governments have enforced a series of actions to improve the local food environment and reduce obesity-related diseases in the population by implementing statutory regulations to reduce or ban the marketing of products that are ...
Alanoud Alfraidi   +2 more
doaj   +1 more source

Ultra Wide Band LPDA Design using HFSS

open access: yesIOSR Journal of Electronics and Communication Engineering, 2014
This paper describes the development of LPDA using HFSS. Log Periodic Antennas are antennas with high gain, large bandwidth, large front to back ratio and low cost. These antennas are quite convenient for commercial broadcast and radio signal detection. The UWB LPDA antenna is slightly modified to cover 1GHz to 4GHz bandwidth. The radiation patterns of
Rakhi Dua, Dr. Arti Vaish
openaire   +1 more source

How Changing Food Preferences and Technology Are Transforming Food Markets

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT The foods that consumers purchase and how they purchase food are changing over time. In this article, we discuss how health prioritization and environmental concerns, combined with new technologies, are changing consumers' food preferences and retail choices.
Jill J. McCluskey, Jillian Hyink
wiley   +1 more source

Properties of periodic arrays of symmetric complementary structuresand their application to grid amplifiers [PDF]

open access: yes, 1998
Deschamps' theorem for n-terminal complementary structures is reviewed. An extension to Deschamps' theorem for a class of three-terminal bounded structures with one axis of symmetry is presented.
Moussessian, Alina   +2 more
core   +1 more source

Future workplace reimagination: A multiscenario analysis on entrepreneurial small and medium internationalisers

open access: yesEuropean Management Review, EarlyView.
Abstract This paper aims to encounter the scholarly demand for comprehensive identification and investigation of the factors that highlight the sense of the “workplace of the future.” Besides, this study sheds in‐depth qualitative and quantitative insights into analysing such drivers in international entrepreneurial small and medium enterprises of ...
Hannan Amoozad Mahdiraji   +3 more
wiley   +1 more source

Modeling and optimal design of shorting vias to suppress radiated emission in high-speed alternating PCB planes [PDF]

open access: yes, 2011
An analytical mode analysis of vias in the multilayered printed-circuit-board periphery is developed to suppress the electromagnetic radiation induced by ground bounce.
De Zutter, Daniël   +2 more
core   +1 more source

Consumption of High-Fat, Salt, and Sugar Foods and its Determinants Among Medical Undergraduates in North Kerala: A Cross-Sectional Study

open access: yesHealthline
Introduction: Rising HFSS food intake among young medical undergraduates contributes to early NCD risk among them. Objectives: To assess the consumption pattern of HFSS foods and the factors determining its choice among medical undergraduates in North ...
Navya Gangadharan   +4 more
doaj   +1 more source

IC 5146 Dark Streamer: The First Reliable Candidate of Edge Collapse, Hub-filament Systems, and Intertwined Sub-filaments

open access: yesThe Astrophysical Journal, 2023
The paper presents an analysis of multiwavelength data of a nearby star-forming site, the IC 5146 dark streamer ( d ∼ 600 pc), which has been treated as a single and long filament, fl .
L. K. Dewangan   +7 more
doaj   +1 more source

Type and developmental timing of childhood adversity predicts psychopathology symptoms in a South African birth cohort

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Childhood adversity is widespread globally and is one of the strongest predictors of later psychopathology. However, the differential effects of type and timing of childhood adversities on childhood psychopathology remain unclear, highlighting the need to explore which life‐course hypotheses (sensitive periods, accumulation of exposure, and ...
Sherief Y. Eldeeb   +10 more
wiley   +1 more source

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