Results 11 to 20 of about 4,611 (154)
Policy &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
Conservation 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
Conservation 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
Journal 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
Temporal and Spatial Characteristics of Soil Erosion in Typical Counties of Black Soil Region Based on RUSLE [PDF]
, 2023 [Objective] The spatiotemporal characteristics of soil erosion were analyzed in order to provide a reference for soil erosion control and evaluation of soil and water conservation benefits.
Fu Bin +6 more
core +1 more source
Major Achievements and Future Key Fields of Soil Erosion Research in China [PDF]
, 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
Characteristic Analysis and Prokaryotic Expression of Key Enzyme Flavanone-3-Hydroxylase in Formation Pathway of Citrus Aromadendrin(柑橘香橙素生成途径关键酶黄烷酮-3-羟化酶特性分析及原核表达) [PDF]
Shipin kexue jishu xuebao, 2021 Aromadendrin is an important component of citrus flavonoids, and flavanone-3-hydroxylase (F3H) plays a key role in the formation pathway of aromadendrin.
HUANG Xu(黄旭) +5 more
doaj +1 more source
Shuitu 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 +2 more sources
Research on sediment reduction benefits of engineering measures on waste rock slope under different rainfall intensities [PDF]
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
Shuitu Baochi Xuebao, 2020 为定量研究小麦秸秆覆盖对坡面产沙产流过程及减水减沙效益的影响，采用室内人工模拟降雨试验，研究在降雨强度为90 mm/h时，不同秸秆长度和秸秆覆盖量下的坡面产流产沙特征和产流产沙过程规律，结果表明：（1）在相同秸秆长度下，随秸秆覆盖量增加，产流量产沙量极显著减少 ...
曾建辉 +5 more
doaj