Results 71 to 80 of about 428,405 (309)

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

open access: yesAdvanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe   +4 more
wiley   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang   +9 more
wiley   +1 more source

Electric Field‐Induced Hole‐ and Electron‐Type Flat Bands in Twisted Double Bilayer Graphene

open access: yesAdvanced Electronic Materials, EarlyView.
The electronic structure of twisted double bilayer graphene is visualized using angle‐resolved photoemission spectroscopy with micrometer spatial resolution at twists of 3.1∘$^\circ$ and 6.0∘$^\circ$ as a function of gate voltage. Tunable hybridization effects and flat band formation occurs between valence and conduction band states due to a finite ...
Zhihao Jiang   +13 more
wiley   +1 more source

Campania Region: Multifaceted Urban Agriculture – Case Studies [PDF]

open access: yes, 2015
In the 50’s the Campania agricultural activity lived a recession together with a growing process of urbanization, both for social and cultural reasons. Recently, there has been a comeback of the urban farming, related to several factors.
GORGITANO, MARIA TERESA   +2 more
core  

Evaluating Institutional Dichotomy between Urban and Rural Land Administration in Amhara Region, Ethiopia

open access: yes, 2021
Institutional setup in the land administration system plays a crucial role in the successful functioning of modern land administration. The institutional setup, whether separated for urban and rural land administration or unified, is responsible for ...
Mulugeta Tenaw   +4 more
core   +1 more source

Accounting for Substitution: Improving Estimates of GHG Reductions From Cattle‐Based Product Demand Shifts

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Estimates of reductions in greenhouse gas (GHG) emissions from lower demand for cattle‐based products must account for substitution effects. This study collected data through two surveys—one on ground beef and another on dairy milk—to evaluate substitution effects and potential GHG reductions.
Brandon R. McFadden   +5 more
wiley   +1 more source

Regional planning guideline review : using MOLAND as part of the strategic environmental assessment process

open access: yes, 2009
The urban fabric of the Greater Dublin Area (GDA) has expanded rapidly over the past 20 years. In an effort to coordinate development across the region the “Strategic Planning Guidelines for the Greater Dublin Area” were introduced in 1999.
Brennan, Michael   +5 more
core  

Assessing Household Welfare in Response to Rising Food Prices in The Gambia

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study examines how rising food prices affected household welfare in The Gambia using nationally representative data from the 2015/16 Integrated Household Survey (IHS‐3). The analysis reflects household consumption behavior and market conditions prevailing during that period and provides a structural benchmark for understanding ...
Roger Vorsah   +3 more
wiley   +1 more source

On the Economics of US Agricultural Policy

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper presents an economic analysis of US agricultural policy, building on a modified version of Gardner's efficient redistribution. We argue that agricultural policy is motivated as an attempt to implement an efficient redistribution scheme that redistributes income toward farmers who, as a group, have been adversely affected by ...
Jean‐Paul Chavas
wiley   +1 more source

Urban regions, rural regions

open access: yes, 2016
Can we, in France, distinguishing predominantly urban regions and other predominantly rural? And what criteria to use? Since there exists no doubt, why not use a criterion that corresponds to administrative standards?
openaire   +1 more source

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