Results 51 to 60 of about 3,881,044 (260)

Spatiotemporal Dynamics of Domestic Tourist Flows and Tourism Industry Agglomeration in the Yangtze River Delta, China

open access: yesTourism and Hospitality
The Yangtze River Delta (YRD) region has experienced rapid development in its tourism industry, establishing itself as a leading force within China’s tourism sector. However, significant regional disparities continue to hinder its sustainable development.
Quanhong Xu   +2 more
doaj   +1 more source

An Approach to the Temporal and Spatial Characteristics of Vegetation in the Growing Season in Western China

open access: yesRemote Sensing, 2020
Since the implementation of the great western development strategy in 2000, the ecological environment in the western region of China has been significantly improved.
Junfang Yuan   +4 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

On using Directional Information for Parameter Space Decomposition in Ellipse Detection

open access: yes, 1996
In this paper we use the parametric polar representation to extend the application of edge directional information from circle to ellipse extraction. As a result we obtain a mapping which decomposes the parameter space required for ellipse extraction ...
Nixon, M.S., Aguado, A.S., Montiel, M.E.
core   +1 more source

Urban economic resilience in China and its response to extreme weather [PDF]

open access: yesZiyuan Kexue
[Objective] Effectively responding to extreme weather shocks and enhancing economic resilience have become urgent requirements for high-quality economic development. This study aims to explore the dynamic evolution patterns of economic resilience and its
XIAO Liming, ZHANG Ying, Dai Shengli, ZHANG Zhenhua
doaj   +1 more source

Biomass burning spatiotemporal variations over South and Southeast Asia

open access: yesEnvironment International, 2020
In this study, Moderate Resolution Imaging Spectroradiometer active fire and land use products were integrated to extract and classify biomass burning (BB) data for South Asia (SA) and Southeast Asia (SEA).
Shuai Yin
doaj   +1 more source

Electrostatic Superlattices Beyond 1:1 Stoichiometry

open access: yesAdvanced Functional Materials, EarlyView.
Polymer‐mediated charge regulation drives two hierarchical routes to higher‐stoichiometry nanoparticle superlattices. Tuning the polymer's molecular weight promotes progressive interstitial filling, transforming ZnS into the fully occupied CaF2${\rm CaF}_2$ lattice. Exchanging polymer assignment between large and small nanoparticles instead breaks CsCl
Binay P. Nayak   +7 more
wiley   +1 more source

Engineered Nanotopography to Modulate Growth and Signaling of Neuronal Networks

open access: yesAdvanced Functional Materials, EarlyView.
This study examines the interaction between neurons and nanoscale topographies on engineered substrates. Neurons cultured on nanowires, nanopillars and nanoneedles exhibit enhanced neurite outgrowth, form more organized neuronal circuits, and display improved synaptic connectivity, compared to flat substrates.
Hao Nguyen Tran   +8 more
wiley   +1 more source

Research of the Model of the Deviation Measurement and Accuracy Standard Establishment of the Ellipse Family Gear

open access: yesJixie chuandong, 2015
The non- circular gears which have the characteristics of the ellipse is induced to elliptical family gear,the curve characteristics are discussed and the general mathematical model is summarized.
Gao Ting, Han Jiang, Li Dazhu, Xia Lian
doaj  

Spatiotemporal heterogeneity of carbon emission intensity distribution in the tourism industry and its calculation methods

open access: yesSustainable Energy Research
To accurately measure the carbon emission intensity of tourism, a comprehensive measurement method is proposed in this study. This method combines statistical data and standard deviation ellipse analysis, which can reflect the actual situation of carbon ...
Xiaodong Mao, Yan Zhuang
doaj   +1 more source

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