Results 21 to 30 of about 5,841,129 (277)

OBJECT-ORIENTED CHANGE DETECTION BASED ON SPATIOTEMPORAL RELATIONSHIP IN MULTITEMPORAL REMOTE-SENSING IMAGES [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
In this paper a novel object-oriented change detection approach in multitemporal remote-sensing images is proposed. In order to improve post classification comparison (PCC) performance, we propose to exploit spatiotemporal relationship between two images
L. Liang, G. Ying, X. Wen, Y. Zhang
doaj   +1 more source

Distinct facets to enhance the process of hydrogen production via methanol steam reforming — a review

Energy Storage and Saving, 2022
Methanol steam reforming manifests great potential for generating hydrogen owing to its lower reaction temperature (200–300 °C) and higher hydrogen/carbon ratio comparing with ethanol and methane reforming.
Hangyu Yu, Yuanzhi Li, Chao Xu, Fei Jin, Feng Ye, Xin Li   +5 more
doaj   +1 more source

Effect of different catalyst preparation methods on the synthesis of carbon nanotubes with the flame pyrolysis method

AIP Advances, 2018
The Flame pyrolysis method used to synthesize carbon nanotubes was studied in this work. In order to improve the quality of synthesized carbon nanotubes, it is important to change the corresponding natures of the catalyst.
Yonghong Guo, Gang Zhai, Yu Ru, Chuyu Wu, Xiaowei Jia, Yaping Sun, Jiawen Yu, Zhizhong Kang, Baomin Sun   +8 more
doaj   +1 more source

Thermo-Economic Performance Analysis of a Regenerative Superheating Organic Rankine Cycle for Waste Heat Recovery

Energies, 2017
The Organic Rankine Cycle (ORC) is a promising form of technology for recovering low-grade waste heat. In this study, a regenerative ORC system is established to recover the waste flue gas of 160 °C.
Zhonghe Han, Peng Li, Xu Han, Zhongkai Mei, Zhi Wang   +4 more
doaj   +1 more source

Influence of Operation Schemes on the Performance of the Natural Draft Hybrid Cooling System for Thermal Power Generation

Energies, 2021
For thermal power generation, the natural draft hybrid cooling system (NDHCs) with airflows in parallel design gives a multi-objective solution for water saving, performance enhancement and maintenance issues, like corrosion, by switching the loads of ...
Huimin Wei, Lin Chen, Zhihua Ge, Lijun Yang, Xiaoze Du   +4 more
doaj   +1 more source

Condition monitoring benefit for offshore wind turbines [PDF]

, 2012
As more offshore wind parks are commissioned, the focus will inevitably shift from a planning, construction and warranty focus to an operation, maintenance and investment payback focus.
McMillan, David, Thöns, Sebastian
core   +3 more sources

Coupled Model of Heat and Mass Balance for Droplet Growth in Wet Steam Non-Equilibrium Homogeneous Condensation Flow

Energies, 2017
Because of the complexity of wet steam two-phase condensation flow, many problems remain to be solved. The important part of condensation theory—the calculation of the water droplet growth model in the transition zone—is not ideal; thus, it is necessary ...
Xu Han, Zhonghe Han, Wei Zeng, Jiangbo Qian, Zhi Wang   +4 more
doaj   +1 more source

Estimation of the Filling Distribution and Height Levels Inside an Insulated Pressure Vessel by Guided Elastic Wave Attenuation Tomography

Sensors, 2020
The operation efficiency and safety of pressure vessels in the oil and gas industry profits from an accurate knowledge about the inner filling distribution.
Robert Neubeck, Mareike Stephan, Tobias Gaul, Bianca Weihnacht, Lars Schubert, Arne Ulrik Bindingsbø, Jan-Magnus Østvik   +6 more
doaj   +1 more source

Condition monitoring based on anomalous sound detection via autoencoders [PDF]

, 2022
openCondition Monitoring is the process of monitoring a parameter of a particular machine, for the purpose of identifying developing anomalies. In this thesis, in cooperation with 221e S.r.l.
VETTORI, MIRKO
core  

An Improved Analysis Method for Organic Rankine Cycles Based on Radial-Inflow Turbine Efficiency Prediction

Applied Sciences, 2018
The organic Rankine cycle (ORC) has been demonstrated to be an effective method for converting low-grade heat energy into electricity. This paper proposes an improved analysis method for the ORC system.
Peng Li, Zhonghe Han, Xiaoqiang Jia, Zhongkai Mei, Xu Han, Zhi Wang   +5 more
doaj   +1 more source