Results 21 to 30 of about 292,395 (311)

Improved Schemes of Differential Spatial Modulation [PDF]

open access: yesIEEE Access, 2021
Differential spatial modulation (DSM) is able to transmit additional data bits without increasing the number of radio-frequency chains and power consumption and also avoids pilot overhead. In this paper, we propose two new schemes of DSM to improve the original DSM.
Ruey-Yi Wei, Yi-Wei Tsai, Shih-Lun Chen
openaire   +2 more sources

Unified Differential Spatial Modulation

open access: yesIEEE Wireless Communications Letters, 2014
This letter proposes a unified differential spatial modulation (DSM) architecture, where a flexible rate-diversity tradeoff is achieved, while enabling a simple single-RF transmitter structure along with non-coherent detection that dispenses with channel estimation at the receiver.
Naoki Ishikawa, Shinya Sugiura
openaire   +1 more source

Modelling cell movement, cell differentiation, cell sorting and proportion regulation in Dictyostelium discoideum aggregations [PDF]

open access: yes, 2015
Understanding the mechanisms that control tissue morphogenesis and homeostasis is a central goal not only in developmental biology but also has great relevance for our understanding of various diseases, including cancer.
Weijer, C. J.; id_orcid   +2 more
core   +1 more source

Hotspots of land use change in Europe

open access: yesEnvironmental Research Letters, 2016
Assessing changes in the extent and management intensity of land use is crucial to understanding land-system dynamics and their environmental and social outcomes.
Tobias Kuemmerle   +10 more
doaj   +1 more source

SPATIAL DIFFERENTIATION OF COVID-19 IN TURKEY

open access: yesDicle Üniversitesi İktisadi ve İdari Bilimler Fakültesi Dergisi, 2023
The sudy aims to focus on spatial transmission of Covid-19 in Turkey, to understand the channels through which it spreads by considering the regional socio-economic dimension. Within this scope, demographic, socioeconomic and healthcare factors associated with the spread of Covid-19 were analyzed in a provincial context.
Neşe ARAL, Hasan BAKIR
openaire   +3 more sources

Glacial history affected phenotypic differentiation in the Alpine plant Campanula thyrsoides [PDF]

open access: yes, 2013
Numerous widespread Alpine plant species show molecular differentiation among populations from distinct regions. This has been explained as the result of genetic drift during glacial survival in isolated refugia along the border of the European Alps ...
Scheepens J. F.   +11 more
core   +1 more source

Spatial Pattern Changes and Driving Factors of Citrus Production in China

open access: yesRedai dili, 2021
Citrus is an important agricultural product in China and globally, and citrus production in China plays a vital role in global citrus patterns; specifically, spatial changes in these patterns affect the supply of citrus in China and have an important ...
Lin Zhengyu   +6 more
doaj   +1 more source

Spatial Pattern of Genetic Diversity in the Blood Fluke Aporocotyle argentinensis (Digenea, Aporocotylidae) from South American Hakes (Pisces: Merluccidae)

open access: yesDiversity, 2022
Distribution of blood fluke Aporocotyle spp. parasitizing Merluccius species from the coasts of South America (Peru, Chile and Argentina) constitutes an excellent opportunity to evaluate the geographical amplitude in which a parasite can exploit the same
Marcelo E. Oliva   +5 more
doaj   +1 more source

Differentiable Spatial Planning using Transformers

open access: yesCoRR, 2021
We consider the problem of spatial path planning. In contrast to the classical solutions which optimize a new plan from scratch and assume access to the full map with ground truth obstacle locations, we learn a planner from the data in a differentiable manner that allows us to leverage statistical regularities from past data.
Devendra Singh Chaplot   +2 more
openaire   +3 more sources

Temporal and Spatial Differentiations in Environmental Governance [PDF]

open access: yesInternational Journal of Environmental Research and Public Health, 2018
With the general degradation of environmental carrying capacity in recent years, many developing countries are facing with the dual task of economic development and environmental protection. To explore the issue of urban environmental governance, in this research, we establish a Data Envelopment Analysis (DEA) model to investigate the environmental ...
Benhong Peng   +3 more
openaire   +2 more sources

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