In a computer-generated holographic projection system, the image is reconstructed via diffraction of light from spatial modulator. this process, several factors could contribute to non-linearities between reconstruction and target image. This paper evaluates non-linearity overall system experimentally, using binary phase holograms computed one-step retrieval (OSPR) algorithm, then applies digit...

BACKGROUND Dihydropyrimidine dehydrogenase (DPD) is an enzyme that catabolizes 5-fluorouracil (5-FU), which is widely used for chemotherapy in patients with advanced colorectal cancer (CRC). However, the clinical importance of tumor dihydropyrimidine dehydrogenase (DPD) expression in patients with CRC treated with 5-FU remains unclear. MATERIALS AND METHODS We investigated DPD activities in n...

A novel joint satellite-transmitter and ground-receiver (JSG) digital pre-distortion (DPD) (JSG-DPD) technique is proposed to improve the linearity power efficiency of space-borne active phased arrays (APAs) in low Earth orbit (LEO) satellite communications. Different from conventional DPD that requires a complex RF feedback loop, coefficients based on generalized memory polynomial (GMP) model ...

Dihydropyrimidine dehydrogenase (DPD) is the initial and rate-limiting enzyme in the catabolism of 5-fluorouracil (FUra), one of the most widely used anticancer drugs. Previous studies from our laboratory demon strated the clinical importance of DPD in cancer patients (G. D. Heggie, J-P. Sommadossi, D. S. Cross, W. J. Muster, and R. B. Diasio. Cancer Res., 47: 2203-2206, 1987; B. E. Harris, R. ...

Dihydropyrimidine dehydrogenase (DPD) is the rate-limiting enzyme of 5-fluorouracil (FU) catabolism, which occurs mainly in the liver. Several cases of severe FU-related toxicity have been reported in patients exhibiting a marked DPD deficiency measured in peripheral blood mononuclear cells (PBMCs). In addition, it has been shown that PBMC-DPD activity correlates to systemic FU clearance. The p...

Two key advances are envisaged for future missions: (a) spectrally efficient transmission to meet the increasing demand and (b) sharing of satellite capacity among different links to meet power/mass requirements. Joint amplification of multiple-carrier DVB-S2 signals using a single High-Power Amplifier (HPA) is a particular application of satellite resource sharing. However, effects specific to...

Thymidine phosphorylase (TP) and dihydropyrimidine dehydrogenase (DPD) are the major catabolic enzymes of 5-FU. In this study, we analyzed the concentration of TP and DPD in non-small cell lung cancer tissue by enzyme-linked immunosorbent assay. We measured the TP and DPD levels in 25 adenocarcinoma tissues and 25 squamous cell carcinoma tissues. The mean TP concentration in non-small cell lung...