Results 11 to 20 of about 519,804 (147)
ABSTRACT High‐yield photocatalytic H2O2 production in sacrificial agent‐free pure water constitutes a critical bottleneck requiring urgent advances in energy catalysis. Although ZnIn2S4 (ZIS) exhibits favourable visible light absorption, it is plagued by severe bulk charge carrier recombination and scarce accessible surface‐active sites.
Sheng Liu +7 more
wiley +1 more source
为研究复合坡面径流运动过程及其水力特性,通过实验室土槽模拟试验,测试了7个径流量(10,15,20,25,30,35,40 L/(min·m))和25个坡度(5o~25o)组合(5个直面坡、10个凸型坡和10个凹型坡)条件下的径流流速,计算了径流深度、雷诺数和弗劳德数。结果显示,直面坡径流流速随流程增加而增大并趋于稳定,且随流量或坡度增大而增大。凸型坡下坡面的径流流速大于上坡面,而凹型坡下坡面的径流流速小于上坡面。径流深度的变化规律与流速相反。径流雷诺数沿流程为一常数,而径流弗劳德数则随之增大 ...
吕 威, 武新英, 李法虎
doaj
Role of funders in embedding tests in conservation practice
Abstract Effective conservation practice requires decisions based on reliable and relevant evidence, but significant gaps in the evidence base exist. Incorporating well‐designed tests of the effectiveness of interventions for biodiversity in conservation projects is one of the best ways to scale up the rate of evidence generation.
Rebecca K. Smith +28 more
wiley +1 more source
针对降雨和床面大糙度共同作用下坡面降雨径流侵蚀不平衡输沙特性研究薄弱的问题,采用室内模拟降雨试验的方法,研究不同降雨强度和坡长条件下的坡面降雨径流侵蚀输沙特性。结果表明:(1)坡面为裸坡、坡度为10°条件下,径流含沙量随坡长的增加呈增大趋势,当坡长由1 m增加至8 m时,同一雨强下径流含沙量增大3.28~7.15倍;径流含沙量随雨强的增大而增加,当雨强由40 mm/h增大至120 mm/h时,同一坡长下径流含沙量增加1.41~2.97倍。(2)分析降雨径流侵蚀条件下 ...
周凡凡 +6 more
doaj
ABSTRACT Photocatalytic H2 evolution coupled with biomass upgrading offers a sustainable route for clean energy conversion and high‐value chemical synthesis. Herein, an in situ grown S‐scheme MnS/MnB‐MBene heterojunction (denoted as SMx) was fabricated via alkaline etching of Mn2AlB2 followed by controlled sulfurization.
Pei Li +7 more
wiley +1 more source
ABSTRACT Achieving rapid and selective separation of anode and cathode materials remains a critical challenge in the recycling of spent lithium‐ion batteries. This study develops a microwave‐enhanced flotation strategy for the efficient recovery of cathode and anode materials.
Peiyuan Ye +5 more
wiley +1 more source
本文求解了收缩比、扩张比和喉部壁面曲率半径均可任意选取的二元拉伐尔喷管的亚跨声速流动。通过算例,对于收缩角和扩张角对喷管流动的影响 ...
浦群, 林同骥
core +1 more source
The Evolution of Metal Halide Perovskite Transistors
ABSTRACT Metal halide perovskites (MHPs) offer a revolutionary pathway for next‐generation field‐effect transistors (FETs) because of their exceptional carrier mobilities and cost‐effective processability. However, their transition to practical electronics is significantly challenged by intrinsic instability and imbalanced charge transport. This review
Jiangnan Xia +8 more
wiley +1 more source
为了探究土石混合崩积体坡面细沟流速的变化特征,设置不同的流量(2,4,8,12 L/min)和砾石质量含量(0,10%,30%,50%),采用径流冲刷试验,分析崩积体坡面细沟径流流速的变化过程,研究流速对流量和砾石含量的响应。结果表明:流速在初始阶段(前5 min)减小幅度较大,随着冲刷进行,流速变化趋于平缓,二者呈幂函数关系,纯土坡面的流速衰减趋势大于含砾石的坡面;流速随着流量的增加呈幂函数增加,而随着砾石含量的增加呈对数函数递减;流量与砾石含量对流速的影响均达到显著水平,且流量的作用大于砾石含量 ...
林敬兰
doaj
ABSTRACT Currently, the photocatalytic performance of ZnO has been severely limited by its weak light response ability and sluggish charge carrier dynamics, which considerably hinder its extensive application in photocatalytic fields. Herein, through anchoring the synthesized K6PMo11FeO40·nH2O (PMo11Fe) onto ZnO nanosheets, a novel S‐scheme ...
Xinjia Zhang +8 more
wiley +1 more source

