@misc{qin2018performance,
  title={Performance analysis of a direct-absorption parabolic trough solar collector},
  author={Caiyan Qin and Joong Bae Kim and Bong Jae Lee},
  year={2018},
  eprint={1810.08801},
  archivePrefix={arXiv},
  primaryClass={physics.app-ph},
  doi={10.1016/j.renene.2019.04.146},
  url={https://arxiv.org/abs/1810.08801}
}