Results 61 to 70 of about 18,329 (166)
ABSTRACT Cash transfers have become an increasingly important social protection tool in development and humanitarian contexts. In developing countries, cash transfers can be used to build economic resilience. This study examines the effects of unconditional cash transfers on asset accumulation among low‐income households in rural Northern Uganda. Using
Simon Peter Nsereko +2 more
wiley +1 more source
Spatially Downscaling of Future Food Demand for Policy Planning
ABSTRACT Understanding the subnational dynamics of food demand, while accounting for the evolution of the agrifood system at the global level, remains a challenge for designing food policy to ensure food security. To link global agrifood systems with subnational food policy planning, we downscale per capita food demand for 62 food commodities at the ...
Chun Song +3 more
wiley +1 more source
Research on Fourier Augmented Unbiased Cross-Domain Object Detection [PDF]
The main purpose of unbiased cross-domain object detection is to utilize the knowledge of the source domain to the maximum extent through knowledge distillation, and reduce the cross-domain gap of the model through domain adaptation.
WANG Bing, XU Pei, ZHANG Xingpeng
core +1 more source
Passive forensic based on spatio-temporal localization of video object removal tampering [PDF]
To address the problem of identification of authenticity and integrity of video content and the location of video tampering area,a deep learning detection algorithm based on video noise flow was proposed.Firstly,based on SRM (spatial rich model) and C3D (
Guohua WU +5 more
core +1 more source
Jellyfish blooms restructure plankton dynamics and trophic linkages in coastal waters
Read the free Plain Language Summary for this article on the Journal blog. Abstract Jellyfish blooms are increasing globally in frequency and intensity, introducing complex ecological interactions, yet the mechanisms by which they alter ecosystem structure remain poorly characterized due to a lack of sustained field observations.
Pengpeng Wang +4 more
wiley +1 more source
针对动车组设备中滚动轴承故障预测实时性不强的问题,提出了基于增强节点更新的宽度神经网络方法。首先,采用宽度神经网络的方法对预处理之后的滚动轴承原始振动数据进行模型训练;其次,在训练过程中通过增加增强节点进行权值更新;最后,使用宽度网络对设置滑动窗口的数据进行预测并输出最终结果。动车组模拟实验台采集的滚动轴承故障数据的实验结果表明:模型训练时间得以缩短,预测时间控制在30 ms以内,达到实际工业设备预测要求;与传统深度学习相比,基于增强节点更新的宽度神经网络其预测准确性得以保障,且预测实时性优于其他方法。
doaj +1 more source
利用介质阻挡放电实验装置和测量系统研究了不同的介质层厚度、外加电压以及空气间隙距离的等离子体助燃(PAC)激励器放电特性,并在实验数据的基础上,根据介质阻挡放电等效电路对空气间隙上的两端电压、放电电流等参数进行了计算。结果表明,介质层的厚度对放电脉冲的次数的影响很大;随外加电压的增加,脉冲放电增加,放电的起始时刻不断提前;随着空气间隙距离的减小,激励器放电强度明显增强,放电更加均匀。
兰宇丹, 何立明, 丁伟
doaj
ABSTRACT Additively manufactured AlCoFeNi series eutectic high‐entropy alloys (EHEAs) exhibit nonequilibrium dual‐phase microstructure in the as‐printed state, allowing them to be easily tailored through annealing to explore their strength–toughness potential.
Huidong Wu +13 more
wiley +1 more source
Aiming at the problem of insufficient local feature extraction of general point cloud classification methods in fine-grained classification tasks, we propose a point cloud-oriented 3D model classification framework, HFE-Net.
白静(BAI Jing) +3 more
doaj +1 more source
Research on Information Code Correction Based on Improved PPYOLOE-R [PDF]
Information-code recognition technology promotes societal progress and provides convenience. Owing to the effect of the photography environment, the information-code recognition effect must be improved, and the information-code angle tilt affects the ...
ZHAO Yuntao, XIAO Junjie, LI Weigang, XIONG Yating
core +1 more source

