Weishi Xia

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In single-photon emission computed tomography (SPECT), projection data are acquired by rotating the photon detector around a patient, either in a circular orbit or in a noncircular orbit. The projection data of the desired spatial distribution of emission activity is blurred by the point-response function of the collimator that is used to define the range(More)
Decentralized supply of energy from renewable sources strongly relies on the efficient conversion and storage of energy in different forms, for example, in the form of H2 by electrolysis of water and recovery of the energy during the reverse process in fuel cells and in rechargeable metal−air batteries. Reversible interconversion of water into H2 and O2,(More)
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