Results 171 to 180 of about 15,228,680 (412)

Urban Air Mobility: Viability of Hub-Door and Door-Door Movement by Air [PDF]

open access: yes, 2020
Owing to a century of innovation in connected and automated aircraft design, for the rst time in history, air transport presents a potential competitive alternative to road, for hub-to-door and door-to-door urban services.
Bulusu, Vishwanath, Sengupta, Raja
core  

Weakly Solvating Electrolytes for Lithium and Post‐Lithium Rechargeable Batteries: Progress and Outlook

open access: yesAdvanced Energy Materials, EarlyView.
Weakly solvating electrolytes (WSEs) use anion‐dominated solvation to form stable interphase layers, overcoming energy density and lifespan limitations. This review clarifies their design, anion‐mediated interface regulation, and compatibility with lithium/post‐lithium systems, distinguishing them from conventional electrolytes, high concentration ...
Xue Li   +6 more
wiley   +1 more source

Urban design is key to healthy environments for all. [PDF]

open access: yesLancet Glob Health, 2022
de Sa TH   +6 more
europepmc   +1 more source

Increasing sedentary time, minimum dietary energy requirements, and food security assessment

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract We compute corrections for sedentary behavior in physical activity levels (PALs) and incorporate them along with corrections for over estimation of basal metabolic rates (BMRs) into threshold caloric intakes, known as minimum dietary energy requirements (MDERs).
Jacob Michels   +2 more
wiley   +1 more source

Thin Cloud Correction for Single Optical Satellite Image Using Complementary Dark Objects on Multiple Visible Bands

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Optical satellite images frequently suffer from thin clouds, degrading the data quality. A thin cloud correction method is developed based on complementary dark objects on multiple visible bands to address this problem.
Peng Yi   +5 more
doaj   +1 more source

Causal Discovery and Inference towards Urban Elements and Associated Factors [PDF]

open access: yesarXiv
To uncover the city's fundamental functioning mechanisms, it is important to acquire a deep understanding of complicated relationships among citizens, location, and mobility behaviors. Previous research studies have applied direct correlation analysis to investigate such relationships.
arxiv  

Communities in Action. The Handbook [PDF]

open access: yes, 2003
Focuses on ways to enable and improve the practice of participatory design, urban design and neighbourhood ...
Frey, H.W., Romice, O.R.
core  

What matters for agricultural trade? Assessing the role of trade deal provisions using machine learning

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract This paper employs machine learning to determine which preferential trade agreement (PTA) provisions are relevant to agricultural trade patterns and the factors that may influence their adoption. Utilizing the three‐way gravity model, we apply plug‐in Lasso regularized regression to pinpoint predictive PTA provisions for agricultural trade ...
Stepan Gordeev   +3 more
wiley   +1 more source

Theoretical approach and practice of “National Spatial Planning Theory”: how Chinese cities and towns precisely adapt to nature and culture

open access: yesFrontiers of Urban and Rural Planning
Over the past 40 years, China has witnessed the world’s largest urbanization process. In light of its natural and cultural conditions featuring resource scarcity, frequent natural disasters, rich cultural heritage and regional disparities and dynamics ...
Kai Wang, Hui Xu, Yajie Zhou
doaj   +1 more source

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