Improved Fatigue Reliability Analysis of Deepwater Risers Based on RSM and DBN

Probabilistic Reliability and Integrity Assessment of Large Diameter Steel Compliant Risers (SCR) for Ultra-Deepwater Operations: Volume 2 - Reliability Analysis

Monitoring VIV fatigue damage on marine risers

Long flexible cylinders (e.g. risers, tendons, mooring lines) exposed to the marine environment encounter ocean currents leading to vortex-induced vibration (VIV). These oscillations, often driven at high frequencies over extended periods of time may result in structural failure of the member due to fatigue damage accumulation. Recent developments in instrumentation and installation of data acq...

fabrication of new ion sensitive field effect transistors (isfet) based on modification of junction-fet for analysis of hydronium, potassium and hydrazinium ions

a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...

Reliability Analysis of Jack-up Platforms Based on Fatigue Degradation

Generally, jack-up structures are used for production drilling and exploration of hydrocarbons. The combination of mobility and the behavior as a fixed structure in operational conditions has made it an important structure in the offshore industry over the last 40 years. When a jack-up structure has been in operation for a great part of its original design-life and intention is there to extend ...

Shot Identification Based on DBN

A new method to identify the shots in basketball video based on Dynamic Bayesian Network (DBN) has been presented in this paper. Using the DBN, the semantic gap between low-lever features and high-lever semantic will be resolve. To identify the ball and the basketball hoop, Kalman filter and SURF (Speed up Robust Features) is applied separately. At last the DBN is employed to identify the shot ...