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In this paper, we present a wavelet-based multigrid approach to solve the perturbation equation encountered in optical tomography. With this scheme, the unknown image, the data, as well as the weight matrix are all represented by wavelet expansions, thus yielding a multiresolution representation of the original perturbation equation in the wavelet domain.(More)
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Countermeasures are desirable to retard bone loss during long-term space flight. We evaluated the effect of an intervention protocol on bed rest-induced bone loss. We developed a resistive vibration exercise (RVE) platform to test if an intervention RVE protocol would be effective to protect bed rest-induced bone loss. Fourteen male subjects were assigned(More)
To explore a new predictor of renal flares after successful inductive treatment for diffuse proliferative glomerulonephritis(DPGN) in patients with lupus nephritis. A cohort of patents with SLE DPGN who were treated initially with prednisone and cyclophosphamide were studied. Those who responded to inductive treatment were followed up for the occurrence of(More)
Air pollution caused by the indoor fine particulate matter cannot be ignored. To monitor the indoor air quality, a portable and uncomplicated separation and sampling device is required. Here, we present the design of fine particles separation and sampling system which is based on air-microfluidic technology. We use the color polystyrene microspheres with(More)