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The aim of this study was to assess the union rates in a series of patients with failed femoral shaft aseptic non-union who were treated with percutaneous concentrated autologous bone marrow grafting. Bone marrow harvesting and cell injection were performed under general anaesthesia in a single surgical procedure. Radiographic union was diagnosed in fractures with a score ≥10 according to the radiographic...
We investigate the performance of data-aided coherent optical systems under different training sequence lengths and propose an adaptive length frame synchronization method that can adapt with required tracking speed and training sequence lengths. The technique is verified through simulations and experiments with good and stable performance after 1000 km transmission.
We provide a performance comparison of new training sequences in 16-QAM and QPSK coherent polarization-multiplexed single-carrier system. Two types of binary sequences are compared under various impairments to confirm similar performance to ideal Chu sequences.
We propose a technique for polarization-mode-dispersion (PMD) estimation in 16-QAM coherent polarization-multiplexed single-carrier system using complementary Golay training sequences and channel response filter analysis. The technique is experimentally proved to be fast and highly accurate.
We experimentally demonstrate coherent polarization-multiplexed QPSK and 16QAM single-carrier system with frequency-domain-equalization over 800-km in-line transmission using binary training sequences. The sequences are designed to be practical and achieve accurate channel estimation in full-system demonstration.
We experimentally demonstrate full-transmission chromatic dispersion estimation with high accuracy in 40-Gb/s coherent polarization-multiplexed single-carrier system using binary complementary Golay training sequences. The technique is verified to be robust against polarization-mode-dispersion and amplified-spontaneous-emission noise.
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