期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Dissemination and Problems of African Biogas Technology
1
作者 Cyimana Mulinda qichun hu Ke Pan 《Energy and Power Engineering》 2013年第8期506-512,共7页
The present status of biogas technology in Africa was briefly reviewed focusing on biogas market potential, stake-holders, investments and bottlenecks. Africa is endowed with important biomass reserve considered as a ... The present status of biogas technology in Africa was briefly reviewed focusing on biogas market potential, stake-holders, investments and bottlenecks. Africa is endowed with important biomass reserve considered as a potential for anaerobic digestion. However, the over reliance on wood and fossil fuels remains significantly overwhelming. This is due to the number of challenges in the field which led to underestimate at some extent the benefits of biogas technology. Unreliable and inefficient use of biomass fuel, which contributes to the greenhouse gas emissions still, has kept its preference in primary energy balance. Despite the huge potentialities and biomass resources for anaerobic digestion in Africa, the dissemination rate of biogas in Africa is struggling to meet biogas market demand. Nevertheless, there are a number of problems to address especially narrowing down the gap between biogas market demand and supply. This paper consists of an introduction and the status of the energy sector in Africa, and then discusses current dissemination of biogas development, finance and stakeholder contributions, challenges and a conclusion. 展开更多
关键词 AFRICAN BIOGAS DISSEMINATION Potential BOTTLENECKS BENEFITS
下载PDF
TranSR-Ne RF:Super-resolution neural radiance field for reconstruction and rendering of weak and repetitive texture of aviation damaged functional surface
2
作者 qichun hu Haojun XU +4 位作者 Xiaolong WEI Yizhen YIN Weifeng HE Xinmin HAN Caizhi LI 《Chinese Journal of Aeronautics》 SCIE EI CAS 2024年第11期447-461,共15页
In order to reconstruct and render the weak and repetitive texture of the damaged functional surface of aviation,an improved neural radiance field,named TranSR-NeRF,is proposed.In this paper,a data acquisition system ... In order to reconstruct and render the weak and repetitive texture of the damaged functional surface of aviation,an improved neural radiance field,named TranSR-NeRF,is proposed.In this paper,a data acquisition system was designed and built.The acquired images generated initial point clouds through TransMVSNet.Meanwhile,after extracting features from the images through the improved SE-ConvNeXt network,the extracted features were aligned and fused with the initial point cloud to generate high-quality neural point cloud.After ray-tracing and sampling of the neural point cloud,the ResMLP neural network designed in this paper was used to regress the volume density and radiance under a given viewing angle,which introduced spatial coordinate and relative positional encoding.The reconstruction and rendering of arbitrary-scale super-resolution of damaged functional surface is realized.In this paper,the influence of illumination conditions and background environment on the model performance is also studied through experiments,and the comparison and ablation experiments for the improved methods proposed in this paper is conducted.The experimental results show that the improved model has good effect.Finally,the application experiment of object detection task is carried out,and the experimental results show that the model has good practicability. 展开更多
关键词 Functional surface Multi-view reconstruction Neural rendering TranSR-NeRF Image super-resolution Deep learning
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部