Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 90 for “"RZ"”.
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Improvement of Fiber Optic System Performance by Synchronous Phase Modulation and Filtering at the Transmitter
… of a novel variant of a return-to-zero (RZ) modulation format, based on square-wave phase modulation and filtering of a continuous-wave (CW) signal, is investigated and compared with various modulation formats considered in the literature. We call this modulation format continuous-wave …
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Synthetic Peptide Ligand Mimetics and Tumor Cell Motility
… cell adhesion to ECM proteins. Two peptides, RZ-3 (kmviywkag) and HYD1 (kikmviswkg) bound to tumor cell surfaces. A scrambled peptide derivative of HYD1, HYDS (wiksmkivkg) is not active. As immobilized ligands, RZ-3 and HYD1 can support prostate tumor cell adhesion. Prostate tumor cell …
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Numerical modelling of advanced modulation formats and WDM transmission
… return-to-zero differential phase-shift keying (RZ-DPSK) with advanced photonic devices. Finally we analyse the dispersion management of Nx40 Gbit/s RZ-DPSK transmission applied to a commercial terrestrial lightwave system.
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All-optical 2r regenerator based on self-phase modulation
… namely, non-return�to-zero on-off keying (NRZ-OOK) and return-to-zero on-off keying (RZ-OOK) were investigated. Both of these modulation techniques were performed in two stages which are the degradation and regeneration stages. The simulation results show that the NRZ�OOK and RZ-OOK have …
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Application and Development of Advanced Genetic Tools to Study Adult Stem Cells
… understood. Rnf43 and its paralogue Znrf3 (RZ) act as tumour suppressors in the intestine, but their role in the gastric epithelium has not been previously investigated. Using a novel unpublished stomach specific CreERT2 expressing mouse line I found that simultaneous knockout of RZ (RZ DKO) …
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Effects of feeding ractopamine hydrochloride in combination with zinc or chromium on growth performance, carcass characteristics, and meat quality of finishing steers
… control (CONT), (2) RAC only (RO), (3) RAC + Zn (RZ), (4) RAC + Cr (RC), or (5) RAC + Zn + Cr (RZC). Steers were fed the same basal diet containing 60% dry rolled corn, 20% corn silage, 10% DDGS, and 10% supplement. Trace minerals were fed from d 0 to 63 and to target 1 g of Zn/steer·d-1 (KemTRACE …
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Modeling and performance evaluation of free space optical link for ground-to-train communications
… with Direct detection receiver, that utilize RZ and NRZ OOK modulation formats at 2.5 Gbps. In addition, multiple transmitters concept has been implemented to enhance the link performance, in which single, dual, triple, and quad transmitters have been developed. Furthermore, geometrical …
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Continuous-Time Delta-Sigma Modulators for Wireless Communication
… A model is developed to study return-to-zero (RZ) and non-return-to-zero (NRZ) feedback DACs, with and without data-weighted averaging (DWA), where an RZ DAC with DWA recovers the performance. Paper II and III presents a feedback scheme for improved robustness against variations in loop delay. …
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All optical networking beyond 10 Gbits/s OTDM networks based on electro-optic modulators and fibre ring lasers
… transmission issues associated with high speed RZ data signals. Propagation of RZ signals over both installed (standard fibre) and newly commissioned fibre routes are considered in turn. In the case of standard fibre systems, the use of dispersion compensation is summarised, and the application …
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Experimental investigation of unconfined bluff body stabilised flames with vapourised kerosene fuels
… and CH2O were found in the recirculation zone (RZ), and eventually, the individual fragments were extinguished. The CH2O seemed to enter the RZ from downstream early in the LBO process, with reactants following suit at times closer to LBO. During LBO, the integrated OH* signal decreased slowly …
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Wavelength tunable transmitters for future reconfigurable agile optical networks
… based WDM networks. The wavelength tuneable RZ transmitter is a fundamental component for the core network as the RZ coding scheme is favoured over the conventional NRZ format as the line rate increases. The combination of a widely tuneable SG DBR laser and an EAM is a propitious technique …
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Perbandingan kematangan sosial tunanetra, tunarungu, dan tunagrahita di SDLB Negeri Segonagung, Purwosari, Pasuruan
… 6 bulan). Sedangkan pada tunarungu dengan subjek RZ memiliki kecerdasan sosial 69,7 atau setara dengan usia 8,5 tahun yang artinya kematangan sosial yang dimiliki oleh RZ berada di atas rata-rata usia yang dimiliki saat ini. Kematangan sosialnya sedikit rendah dari usia kronologisnya 12 tahun, 2 …
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All-semiconductor High Power Mode-locked Laser System
… studied. The full characterization of 10-Gb/s RZ-BPSK (return-to-zero binary PSK) data has been demonstrated. Fast lockup and walk-off of the all-optical timing synchronization process on the order of nanoseconds were measured in both simulation and experiment. Phase stability of the recovered …
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Characterization and nonlinear cleanup of noise in optical communication systems
… experimentally measured photon statistics of RZ/NRZ signals in an optically pre-amplified direct-detection receiver, and show that the results are in good agreement with quantum photodetection theory. Specifically, the ZEROs are described by a degenerate Bose-Einstein distribution, while the …
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Availability and distribution of nitrogen and phosphorus from sewage sludge in the plant-soil-water continuum
… Sludge application increased N uptake (rz = 0.98** to 0.99**) by the 1984 com grown on the three well-drained soils. Nitrogen balance data indicated that quantities of unrecovered N ranged from six to 21 percent where sludge was applied.
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Iatrogenic Electrocautery Damage and Cellular-Based Corrosion of Total Joint Arthroplasty Biomaterials
… Kurtosis (Rk), Heighest Peak to Lowest Valley (Rz), and Skewness (Rsk). SEM, EDS, and Surface Topography were also used to look at undamaged areas of the implants.</p> <p>In a separate experiment, IC-21 ATCC murine peritoneal macrophages were cultured with RPMI 1640 growth medium of supplemented …
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Effect of varying levels of neutral detergent fiber and total digestible nutrients on dry matter intake of dairy heifers
… * DM) + 1 (7.7859E-03 * BWT * GAIN);11 = 514, rz = .67.
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Analysis and optimisation of the performance of nonlinear optical communication systems
… penalty. We present a statistical analysis of RZ-DPSK optical signal at direct detection receiver with Mach-Zehnder interferometer demodulation
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Nickel aluminide coating as catalyst in steam methane reforming microreactor
… roughness (Ra) and ten-point mean height (Rz) had increased proportionally when the calcination temperature increases from 300 to 500°C, but not at 600°C. In addition, higher calcination temperature produces more Nickel aluminide compared to lower calcination temperature. The deposited …
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