Results 61 to 70 of about 230,631 (263)

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced 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, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

Cooling potential of global urban roof greening

npj Urban Sustainability
Increasingly frequent and extreme heat is posing significant threats to urbanites. Green roofs have emerged as a promising nature-based solution to mitigate urban heat, but their cooling potential at a global scale remains unquantified. Here, using ultra-
Hao Bai, Zhaowu Yu, Shipeng Nie, Mingyu Luo, Xiaomei Hu, Jingfeng Xiao, Baolin Xue, Chi Xu, Xiuzhi Chen, Lei Fan, Shaopeng Wang, Zhiyao Tang, Weiqi Zhou, Shuqing Zhao, Shengli Tao   +14 more
doaj   +1 more source

Comparative Examination of Network Clustering Methods for Extracting Community Structures of a City From Public Transportation Smart Card Data

IEEE Access, 2019
Human mobility data such as global positioning system (GPS) data from mobile phones and smart card data of public transportation have been used for the analysis of a city. Those studies have attempted to create networks whose nodes represent areas of the
Takashi Nicholas Maeda, Junichiro Mori, Izumi Hayashi, Tetsuo Sakimoto, Ichiro Sakata   +4 more
doaj   +1 more source

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

Advanced 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, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Effects of whole‐soil warming on ecosystem carbon fluxes in an alpine grassland

Grassland Research
Background Global warming impacts ecosystem carbon exchange, thus altering the carbon sink capacity of terrestrial ecosystems. However, the response of ecosystem carbon fluxes to whole‐soil‐profile warming remains unclear.
Ying Chen, Mengguang Han, Qi Shen, Wenkuan Qin, Zhenhua Zhang, Jin‐Sheng He, Biao Zhu   +6 more
doaj   +1 more source

Spatial Analysis Model for the Evaluation of the Territorial Adequacy of the Urban Process in Coastal Areas

Land
Coastal spaces are shaped by human activity. Approaching their urban spaces allows us to analyse the concepts of structure, growth, and management. Highlighting the problems associated with these concepts can lead to intensive scientific analysis and ...
Federico B. Galacho-Jiménez, Sergio Reyes-Corredera   +1 more
doaj   +1 more source

Palaepaphos: Unlocking the Landscape Context of the Sanctuary of the Cypriot Goddess

Open Archaeology, 2019
The cult centre of Palaepaphos was in continuous use since the construction of its megalithic temenos in the Late Bronze Age, but the new political role which the sanctuary was made to perform in the Hellenistic and Roman periods has supressed its ...
Iacovou Maria
doaj   +1 more source

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

Advanced 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, Dongkyu Lee, Alfred J. H. Jones, Youngju Park, Paulina Majchrzak, Kimberly Hsieh, Chakradhar Sahoo, Thomas S. Nielsen, Kenji Watanabe, Takashi Taniguchi, Philip Hofmann, Yong P. Chen, Jeil Jung, Søren Ulstrup   +13 more
wiley   +1 more source

Growth and spatial distribution of art galleries in Istanbul between 2000 and 2022

Journal of Design for Resilience in Architecture and Planning
In this paper, we illustrate the growth and spatial distribution of art galleries in Istanbul at the beginning of the 21st century. Previous studies have attributed the decentralization of urban activities from the old CBD to sub-centers as a result of ...
Elif Kısar Koramaz, Vedia Dokmeci, Numan Kilinc   +2 more
doaj   +1 more source

Transformations of Hungarian traditional Town Centers in the Era of Socialism - Two Case Studies [PDF]

AR: Arhitektura, Raziskave, 2013
Present essay summarises the history of two Hungarian towns related to centralising institutional development in the State Socialist Era, both are characteristic, although still unique in many respect.As these buildings of special importance were built ...
Kornélia Kissfazekas
doaj