نتایج جستجو برای: casing production defects
تعداد نتایج: 733414 فیلتر نتایج به سال:
This paper describes the winning entry to the ALTA Shared Task 2013. The theme of the shared task was recovery of casing and punctuation information from degraded English text. We tackle the task as a sequential labeling problem, jointly learning the casing and punctuation labels. We implement our sequential classifier using conditional random fields, trained using linguistic features extracted...
Abstract The cement behind casings is an important barrier element in wells that should provide zonal isolation along the well. hardened does not always isolate permeable formations, either due to placement issues or loads over time compromise integrity of barrier. modern method used characterize annular material ultrasonic logging which provides essential information concerning type casing, bu...
This paper investigated the design of a system to monitor status robotic welding process thin-walled components for an aircraft jet engine. Opportunities measure and log processing parameters, such as speed, current, voltage, on existing production cell were taken. The acquired data processed using elements descriptive statistics. Obtained indicators matched with physical inspection results wel...
Pipet tip loading of polymerase chain reaction (PCR) and other amplification products into an electrophoresis gel represents a potential source of laboratory contamination. We have developed a prototype of the gel contamination control system (GelCCS) that enables gel loading by bottom puncture of PCR tubes. Puncture occurs within a sealed gel casing, preventing contamination of the surrounding...
In response to the localized corrosion generated by underground casing, which seriously affects safe operation of salt cavern compressed air storage, we used commercial finite element software, ANSYS, propose a partial model applicable casings with pitting and strip corrosion. The results show that depth casing is closely related fracture collapse pressure. As increases, its effect on pressure ...
A finite element model was generated of a Søderberg electrode in a ferromanganese smelter. In this model, the casing and fins were modelled explicitly, and temperature-dependent material properties were included. A two-stage analysis procedure was used, the first part being a coupled thermal-electrical analysis using an applied DC current. As the casing material was nonmagnetic, the DC current...
This paper deals with the design and performance analysis of centrifugal pump. In this paper, centrifugal pump is analyzed by using a single-stage end suction centrifugal pump. Two main components of a centrifugal pump are the impeller and the casing. The impeller is a rotating component and the casing is a stationary component. In centrifugal pump, water enters axially through the impeller eye...
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