Results 21 to 30 of about 7,491,489 (299)

Maximum Gain, Effective Area, and Directivity [PDF]

, 2018
Fundamental bounds on antenna gain are found via convex optimization of the current density in a prescribed region. Various constraints are considered, including self-resonance and only partial control of the current distribution.
Capek, Miloslav, Gustafsson, Mats
core   +2 more sources

Desain Antena Reflektor Parabola untuk Aplikasi Radar Maritim dengan Rekayasa Feed Horn

Jurnal Elkomika, 2023
ABSTRAK Pada studi ini dilakukan analisis penambahan batang metal berbentuk persegi di dalam feed horn piramida antena reflektor parabola untuk meningkatkan performansi gain, beamwidth dan side lobe level.
EFRI SANDI, AODAH DIAMAH, ARDI IMAM SANTOSO   +2 more
doaj   +1 more source

Understanding consumer beliefs and choices related to food safety: a qualitative study in urban Ethiopia

Public Health Nutrition
Objective: Provide an in-depth examination of consumers’ food safety beliefs and practices to draw implications for interventions to improve nutrition and food safety in Ethiopia. Design: Adapted Focused Ethnographic Study approach using in-person semi-
Stella Nordhagen, Smret Hagos, Genet Gebremedhin, James Lee   +3 more
doaj   +1 more source

Les traductions latines de Basile de Césarée (IVe-XVe siècle): les intentions de leurs auteurs

Vox Patrum, 2006
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Benoît Gain
doaj   +1 more source

Coding gain in paraunitary analysis/synthesis systems [PDF]

, 1993
A formal proof that bit allocation results hold for the entire class of paraunitary subband coders is presented. The problem of finding an optimal paraunitary subband coder, so as to maximize the coding gain of the system, is discussed.
Soman, Anand K., Vaidyanathan, P. P.
core   +1 more source

Multiuser Diversity Gain in Cognitive Networks [PDF]

, 2010
Dynamic allocation of resources to the \emph{best} link in large multiuser networks offers considerable improvement in spectral efficiency. This gain, often referred to as \emph{multiuser diversity gain}, can be cast as double-logarithmic growth of the ...
Tajer, Ali, Wang, Xiaodong
core   +1 more source

Communication and Language Profiles of Children Treated for Posterior Fossa Brain Tumors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cognitive and language deficits are frequently reported sequelae of posterior fossa brain tumors (PFBT). Typically, delayed onset impedes prompt assessment and early intervention. This has devastating implications for quality of life.
Zara Sved, Meghan Hesse, Jennie Cusiter, Annabel Webb, Kimberley Docking   +4 more
wiley   +1 more source

A novel allosteric GCase modulator prevents Tau accumulation in GBA1 WT and GBA1 L444P/L444P cellular models

Scientific Reports
A slow decline in the autophagy-lysosomal pathway is a hallmark of the normal aging brain. Yet, an acceleration of this cellular function may propel neurodegenerative events. In fact, mutations in genes associated with the autophagy-lysosomal pathway can
Matteo Ciccaldo, Natàlia Pérez-Carmona, Ester Piovesana, Sara Cano-Crespo, Ana Ruano, Aida Delgado, Ilaria Fregno, Beatriz Calvo-Flores Guzmán, Manolo Bellotto, Maurizio Molinari, Joanne Taylor, Stéphanie Papin, Ana María García-Collazo, Paolo Paganetti   +13 more
doaj   +1 more source

Nutritional, economic, social, and governance implications of traditional food markets for vulnerable populations in sub-Saharan Africa: a systematic narrative review

Frontiers in Sustainable Food Systems
Traditional food markets in sub-Saharan Africa (SSA) are pivotal urban spaces, especially for vulnerable populations. These markets are vibrant hubs for commerce, cultural exchange, and social interaction, yet they face challenges such as food safety ...
Brian Cook, Ann Trevenen-Jones, Bhavna Sivasubramanian   +2 more
doaj   +1 more source

A high-gain Quantum free-electron laser: emergence & exponential gain

, 2019
We derive an effective Dicke model in momentum space to describe collective effects in the quantum regime of a free-electron laser (FEL). The resulting exponential gain from a single passage of electrons allows the operation of a Quantum FEL in the high ...
Carmesin, C. Moritz, Giese, Enno, Kling, Peter, Sauerbrey, Roland, Schleich, Wolfgang P.   +4 more
core   +1 more source