Results 41 to 50 of about 16,677 (165)

Oxygen Vacancy Engineering of Ultrafine ZnAl2O4 Nanoparticles as a Robust Protective Layer for Dendrite‐Free and Long‐Lifespan Aqueous Zn Metal Anodes

open access: yesRare Metals, EarlyView.
ABSTRACT Aqueous zinc‐ion batteries (AZIBs) hold great promise for safe and sustainable energy storage, but their commercialization is impeded by severe Zn dendrite growth and interfacial instability. To address these challenges, we propose a defect engineering strategy employing ultrafine ZnAl2O4 (ZAO) nanoparticles (∼5 nm) with oxygen vacancy defects
Yilun Ren   +9 more
wiley   +1 more source

The Impact of Mixed Application of Modified Straw Biochar and Organic Fertilizer on Soil Water Retention and Fertility Maintenance in the Loess Hilly Dry Area [PDF]

open access: yes
[Objective] This study aimed to investigate the effects of different modified corn straw biochars on the water retention and fertilizer conservation capacity of arid loess soil and their effects on crop growth.
CHANG Fangling   +5 more
core   +1 more source

Surface‐Embedded Ag@Multilayer Graphene for Photothermal‐Enhanced Superhydrophobic Anti‐Icing Coatings

open access: yesRare Metals, EarlyView.
ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang   +7 more
wiley   +1 more source

HYDROLOGICAL OBSERVATION IN AN EVERGREEN BROAD LEAVED FOREST IN THE WUYI MOUNTAINS [PDF]

open access: yes, 1997
[中文文摘]对武夷山甜槠林成熟林水文学效应的研究结果表明:观测期间,年大气降水量2678.78mm,林内雨量2182.04mm,林冠截留量为496.74mm;林内雨中,穿透雨量2082.08mm,树干茎流99.96mm;到达甜槠林地作用面的林内雨量中,被地表枯枝落叶层截留的雨量为159.84mm,地表径流量11.6mm,地下渗流量109.32mm,其余林内雨量形成土壤含水量增量并由地表物理蒸发、根系吸收以及植物蒸腾所消耗;甜槠林地o~200cm土层水分初渗率78.6mm·min-1,稳渗率15.5mm ...
何建源(福建武夷山国家级自然保护区管理局)   +7 more
core  

川南天然常绿阔叶林人工更新后枯落物层持水特性研究

open access: yesShuitu Baochi Xuebao, 2006
对川南林区天然常绿阔叶林及其人工更新成檫木林、柳杉林和水杉林后林下枯落物层蓄积量、自然含水量和持水过程进行研究。结果表明:枯落物层蓄积量天然常绿阔叶林(25.68t/hm^2)〉水杉林(18.14t/hm^2)〉檫木林(9.95t/hm^2)〉柳杉林(1.13t/hm^2)。天然常绿阔叶林枯落物层自然含水量分别是檫木林、柳杉林和水杉林的3.18倍、41.33倍和1.53倍。在整个持水过程中.前2h内各林分枯落物层持水作用较强。林下枯落物层持水量与浸泡时间之间的关系式为Q=alnt+b ...
龚伟   +4 more
doaj   +2 more sources

皇甫川流域治理前后洪水动量变化及其冲淤特性分析

open access: yesShuitu Baochi Xuebao, 2000
皇甫川流域1979年以前水土保持治理断断续续,治理面积也比较小,1980年以后水土保持治理得到了稳步发展,1997年各种水土保持治理面积近9万hm^2。水土保持治理对皇甫川流域的洪水特性及其持征等生态环境问题产生了一定的影响,主要表现在:治理后不可利用流量的天数越来越多,洪水的含沙量降低,流速增大,流量增大,动量增大以及洪水单位动量冲刷厚度减小,而单位动量淤积厚度增大等 ...
彭乃志 姚文艺
doaj  

High‐Temperature Stable Narrowband Near‐Infrared Phosphor‐Converted Light‐Emitting Diode Based on Melt‐Grown CsPbCl3: Yb3+ Crystal

open access: yesRare Metals, EarlyView.
ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li   +4 more
wiley   +1 more source

Use of species’ responses to cryptic anthropogenic disturbances for monitoring biodiversity outcomes in tropical forests

open access: yesConservation Biology, EarlyView.
Abstract Measuring area‐based conservation outcomes in tropical forests is challenging due to cryptic human disturbances (e.g., hunting). As a result, comparative studies of management strategies providing quantitative outcomes remain scarce, especially in the Neotropics.
Lucy Perera‐Romero   +5 more
wiley   +1 more source

Soil Preferential Flow Characteristics in Coal Mine Subsidence Area under Different Rainfall Duration [PDF]

open access: yes
[Objective] Research on the preferential flow characteristics triggered by cracks in coal mining subsidence areas can provide support for scientific and rational development of water resource management and ecological management practice in the mining ...
DAI Bin   +4 more
core   +1 more source

川西高山峡谷区6种森林枯落物的持水与失水特性

open access: yesShuitu Baochi Xuebao, 2019
川西高山峡谷区森林较高的地表枯落物储量可能具有较好的水文生态效益,但缺乏研究关注。以川西高山峡谷区6种森林为对象,在雨季调查了不同森林地表枯落物的持水和失水特性。结果表明:(1)川西高山峡谷区林地枯落物蓄积量与最大持水量和有效拦蓄量呈显著正相关,林地枯落物蓄积量为6.90~17.49 t/hm2,最大持水量为1.64~5.42 mm,最大持水率为138.18%~330.09%,有效拦蓄量为0.53~3.33 mm,有效拦蓄率为77.57%~203.02%。(2)相对其他森林,亮叶桦(Betula ...
刘一霖   +7 more
doaj  

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