نتایج جستجو برای: wire line logs
تعداد نتایج: 449312 فیلتر نتایج به سال:
In this article, three new green's functions are presented for a narrow strip line (not a thin wire) inside or on a homogeneous dielectric, supposing quasi-TEM dominant mode. These functions have no singularity in contrast to so far presented ones, so that they can be used easily to determine the capacitance matrix of multi-layer and single-layer homogeneous coupled microstrip lines. To obtain ...
In this article, an innovative supervision system will be proposed that can observe and analyze health of Circuit Breaker’s trip coil. The proposed design also logs changes in the coil's quality and informs network supervisor in case of Circuit Breaker (CB) failure. This system injects small direct currents to the Circuit Breaker connections and the trip coil to compute CB’s health and characte...
This paper presents a hybrid numerical method for the electromagnetic field coupling into apertures residing on the surface of rectangular cavities. The cavity may enclose wires and cables that are typically modeled via transmission line approaches. Coupling into the cavity is analyzed via the moment method along with the cavity Green’s function to find the aperture fields whereas Pocklington’s...
This article deals with a red-scale measurement system which can be applied to Wire Rod Production Line in POSCO (Pohang Iron and Steel Company). A red-scale is a type of oxidized Fe coated on the surface of wire rod and as the name means it has red color. The main cause of red-scale is an improper control of cooling process after final milling stage. To control the cooling process we need to m...
It is challenging to simultaneously achieve multicore scalability and high disk throughput in a file system. For example, data structures that are on separate cache lines in memory (e.g., directory entries) are grouped together in a transaction log when the file system writes them to disk. This grouping results in cache line conflicts, thereby limiting scalability. McoreFS is a novel file syste...
This paper presents an innovative solution for estimating the proximate parameters of coal beds from the well-logs. To implement the solution, the C# programming language was used. The data from four exploratory boreholes was used in a case study to express the method and determine its accuracy. Then two boreholes were selected as the reference, namely the boreholes with available well-logging ...
A water purification by streamer discharge using a stacked Blumlein line pulsed power generator under the water containing pollutants has been investigated. The pulsed power generator consisted of six stacked Blumlein line to generate high voltage with low charging voltage. The output voltage was applied to a wire electrode to generate streamer discharge in the water. The wire electrode was set...
This paper shows that a fat-pyramid of area (A) requires only O(logA) slowdown to simulate any competing network of area A under very general conditions. The result holds regardless of the processor size (amount of attached memory) and number of processors in the competing network as long as the limitation on total area is met. Furthermore, the result is valid regardless of the relationship bet...
Developing technologies that would enable NASA to sample rock, soil, and ice by coring, drilling or abrading at a significant depth is of great importance for a large number of in-situ exploration missions as well as for earth applications. Proven techniques to sample Mars subsurface will be critical for future NASA astrobiology missions that will search for records of past and present life on ...
The electric fire-exchanging operation is basically used to implement such as Wire stripping, drainage wire through the fastening clip, clamp bolt fastening, etc. Manual time-consuming and laborious has very high safety risks, so automatic electrified ignition robot emerges Times require; method should accurately identify position of line, guide move carry out corresponding operation. Based on ...
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