Results 11 to 20 of about 4,642 (171)

The political origins of platform economy regulations. Understanding variations in governing Airbnb and Uber across cities in Switzerland

open access: yesPolicy &Internet, Volume 14, Issue 4, Page 736-754, December 2022., 2022
Abstract In the past decade, digital platforms have entrenched themselves within key urban sectors, opening the way for radical changes in traditional industries. Along with new opportunities for city residents, globally operating platforms such as Airbnb and Uber also raised specific challenges, sparking calls for adequate responses by city ...
Marine C. Benli‐Trichet   +1 more
wiley   +1 more source

A counterfactual approach to measure the impact of wet grassland conservation on U.K. breeding bird populations

open access: yesConservation Biology, Volume 35, Issue 5, Page 1575-1585, October 2021., 2021
Abstract Wet grassland populations of wading birds in the United Kingdom have declined severely since 1990. To help mitigate these declines, the Royal Society for the Protection of Birds has restored and managed lowland wet grassland nature reserves to benefit these and other species.
Sean Jellesmark   +7 more
wiley   +1 more source

Trends in seabird breeding populations across the Great Barrier Reef

open access: yesConservation Biology, Volume 35, Issue 3, Page 846-858, June 2021., 2021
Abstract The Great Barrier Reef is an iconic ecosystem, known globally for its rich marine biodiversity that includes many thousands of tropical breeding seabirds. Despite indications of localized declines in some seabird species from as early as the mid‐1990s, trends in seabird populations across the reef have never been quantified.
Bradley K. Woodworth   +5 more
wiley   +1 more source

Key n‐Gram Extractions and Analyses of Different Registers Based on Attention Network

open access: yesJournal of Applied Mathematics, Volume 2021, Issue 1, 2021., 2021
Key n -gram extraction can be seen as extracting n‐grams which can distinguish different registers. Keyword (as n = 1, 1‐gram is the keyword) extraction models are generally carried out from two aspects, the feature extraction and the model design.
Haiyan Wu   +5 more
wiley   +1 more source

Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions [PDF]

open access: yes, 2023
[Objective] The influence factors of artificial cyanobacterial crust on soil threshold wind velocity and wind erosion rate, and the effects of wind erosion prevention and control were analyzed, and the feasibility of using artificial cyanobacterial crust
Gao Liqian, Huang Minghui, Zhao Yunge
core   +1 more source

Spatial Distribution Characteristics of Soil Water and Salt in Newly Cultivated Farmland Under Gully Control in Loess Hilly Region [PDF]

open access: yes, 2023
[Objective] Part of the newly cultivated farmland formed by the “Gully Control and Land Reclamation” project is facing the risk of soil salinization in the loess hilly region.
Jiao Feng   +3 more
core   +1 more source

Major Achievements and Future Key Fields of Soil Erosion Research in China [PDF]

open access: yes, 2022
[Objective] The developing history of soil erosion research in China was reviewed, the major research achievements were summarized, and the current problems and key research fields in the future were analyzed to provide a reference for China's soil and ...
Cai Qiangguo, Ke Qihua, Zhang Keli
core   +1 more source

基于湘菜传承的长沙美食之都建设的思考

open access: yes现代教育论坛, 2020
随着社会经济的不断发展,人们的生活质量有了大幅度的提升,国际交流也日趋频繁。作为八大菜系之一的湘菜和湘菜首府的长沙,如何凭借国际美食之都的基础更好的将长沙美食与城市发展融合起来,为长沙的国际化发展和湘菜产业的长远发展注入源源不断的动力,是一个值得研究的课题。本文分析了目前长沙美食之都建设中的不足,并提出解决对策,从而推动长沙的现代服务能力和实现长沙城市建设与美食文化融合的更好发展。
辉煌 段
semanticscholar   +1 more source

喀斯特槽谷区岩石与坡面夹角对产流产沙过程的影响

open access: yesShuitu Baochi Xuebao, 2022
为明确喀斯特槽谷区岩石与坡面夹角对坡面产流产沙过程的影响,在6个岩石与坡面夹角(30°,60°,90°,120°,150°,180°)、3个坡度(10°,15°,20°)和3个流量(5,7.5,10 L/min)组合条件下,开展室内放水冲刷试验。结果表明:(1)地表产流率随冲刷历时呈先增加后稳定的趋势,而含沙量和地表产沙率随冲刷历时均呈波动性减小趋势;(2)各岩石与坡面夹角下,地表产流率无显著差异(P>0.05);但含沙量与地表产沙率均差异显著(P<0.05),表现为含沙量和地表产沙率在60 ...
宋兰   +4 more
doaj  

Research on sediment reduction benefits of engineering measures on waste rock slope under different rainfall intensities [PDF]

open access: yes
The dump slope of open-pit coal mines is characterized by steep gradients, loose structure, and poor stability, leading to severe soil erosion under heavy rainfall.
Gang LYU   +3 more
core   +1 more source

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