into one end of the cable and relies on the pulse being reflected back to the source due to an electrical discontinuity at the faulted location. The fault ...

A fault finder for locating faults along a high voltage electrical transmission line. Real time monitoring of background noise and improved filtering of input signals is used to identify the occurrence of a fault. A fault is detected at both a master and remote unit spaced along the line. A ...

This paper introduces a new approach to fault analysis using synchronized sampling. A digital fault recorder with Global Positioning System (GPS) satellite receiver is the source of data for this approach. Fault analysis functions, such as fault detection, classification and location are ...

In general, we do not know which fault model can explain the cause of the faulty values at the primary outputs in a circuit under test before starting diagnosis. Moreover, under Built-In Self Test (BIST) environment, it is difficult to know which primary output has a faulty value on the application of a failing test pattern. In this paper, we propose an effective diagnosis ...

A microprocessor based fault locator is described, which uses novel compensation techniques to improve accuracy. It displays the distance to the fault in percent of transmission line length, for facilitating repair and restoration following a permanent fault. Also, it pinpoints weak spots following transient ...

FAULTS AND FAULT LOCATIONS Cable faults.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Visual methods of cable fault locating ...

This paper describes the basis of an alternative approach for accurately locating faults on teed feeders and the technique developed utilizes fault voltages and currents at all three ends. The method is virtually independent of fault resistance and largely insensitive to variations in source ...

An HVdc fault location scheme is described which relies on very precise detection of the time of arrival of fault created surges at both ends of the line. Such detection is achieved by a very accurate data acquisition and processing system combined with the time reference signals provided by a global positioning ...

Power transmission lines form the backbone of electric utility operations. Individual lines may suffer short-circuit faults and must be switched out of the network by protective relays and power circuit breakers located in the terminating substations. Modern microprocessor-based relays are the brains of the line protection system, sampling and analyzing ...

The use of fault-generated waves to locate faults in underground residential distribution (URD) electric power systems has been investigated and demonstrated to be a viable approach. Successful tests and demonstrations were performed on a representative (full scale) URD test facility and on an operating utility URD circuit. ...

This paper presents an application of ANFIS approach for automated fault disturbance detection and classification in transmission lines using measured data from one terminal of the transmission line. The ANFIS design and implementation are aimed at high-speed processing which can provide selection real-time detection and classification of faults. The ANFIS ...

A new fault location (FL) method using composite fiber-optic overhead ground wires (OPGWs) is developed to find out where electrical faults occur on overhead power transmission lines. This method locates the fault section by detecting the current induced in the ground wire (GW), i.e. OPGW in ...

... Accession Number : AD0474341. Title : EVALUATION OF AN EXPERIMENTAL FAULT LOCATION DEVICE: II. FAULT LOCATION ...

: Accurate and robust fault location algorithm for parallel lines compensated with one three-phase bank of series capacitors in each the line is presented. The algorithm is categorized as one-end fundamental frequency based technique which offsets the series compensation effect and the reactance effect resulting from the remote end ...

... Accession Number : ADD311174. Title : FAULT LOCATION - INFRARED THERMAL PICTURES FOR EARLY FAULT RECOGNITION. ...

This study describes a technique to estimate the location of faults on a radial distribution network based on the principles of travelling waves. The occurrence of faults on power systems will result in the high frequency voltage and current signals to propagate along the power systems. These signals contain a lot of information and ...

About 100 small earthquakes (M approximately equal to 1/2 to 2) which occurred near the trifurcation of the San Jacinto fault southeast of Anza, California, have been accurately located using five- and six-station arrays with dimensions of about 10 km. Th...

Surface faulting commonly occurred in the tectonically active Taiwan region. Investigating and characterizing crustal surface faults become urgent because damaging earthquakes usually resulted from crustal surface faulting. In recent years, remote sensing technology has provided mapping tools that can pinpoint active structures more ...

... can be accurately isolated in the fault isolation manual ... MAINTENANCE, *ACCURACY, *JET FIGHTERS, *MANUALS, *FAULTS, FLIGHT CREWS ...

Assessing seismic hazard in continental interiors is difficult because these regions are characterized by low strain rates and may be struck by infrequent destructive earthquakes. In this paper, we provide an example showing that interpretations of seismic cross sections combined with other kinds of studies such as analysis of microseismicity allow the whole seismogenic source area to be imaged in ...

Preliminary investigation areas (PIA) for a potential repository of high-level radioactive waste must be evaluated by NUMO with regard to a number of qualifying factors. One of these factors is related to earthquakes and fault activity. This study develops a spatial statistical assessment method that can be applied to the active faults in Japan to perform ...

The ability to infer more accurately the type, timing, and location of folds and faults that develop during the evolution of large-scale geologic structures can help explorationists to interpret subsurface structures and generate new prospects to better assess their risk factors. One type of structural setting that is of importance in ...

A new fault location system based on the travelling wave principle and capable of locating faults on power lines to within {+-}one tower span (300m) has been successfully developed and applied to B.C. Hydro`s extensive 500 kV network. Unlike earlier schemes which are based on impedance measurements, its accuracy is ...

Basic goal of power system is to continuously provide electrical energy to the users. Like with any other system, failures in power system can occur. In those situations it is critical that correct remedial actions are applied as soon as possible after the accurate fault condition and location are detected. This thesis has been ...

Using an industrial 3D seismic dataset from the central part of the Vienna Basin (Austria), we investigate marker horizons in the hanging wall and footwall of a large-scale normal fault. The throw of individual horizons shows a remarkable variability, both along strike and along dip of the fault. Since fault drag is a direct function ...

Shows how to test for and locate common circuit faults, such as grounds, resistance deterioration, and interference in circuits.

We have been estimating crustal heterogeneous structure and earthquake generating properties in and around the Yamasaki fault zone, which is a left-lateral strike-slip active fault with a total length of about 80 km in southwest Japan. We deployed dense seismic observation network, composed of 32 stations with average spacing of 5-10 km around the Yamasaki ...

We have been estimating crustal heterogeneous structure and earthquake generating properties in and around the Yamasaki fault zone, which is a left-lateral strike-slip active fault with a total length of ~80 km in southwest Japan. We deployed dense seismic observation network, composed of 32 stations with average spacing of ~10 km around the Yamasaki ...

During the 1886 Charleston earthquake, two parallel tabby walls of Fort Dorchester broke left-laterally, and a strike of ~N25�W was inferred for the causative Sawmill Branch fault. To better define this fault, which does not have any surface expression, we planned to cut trenches across it. However, as Fort Dorchester is a protected archeological site, ...

... of locating cable faults is described ... Descriptors : *ELECTRIC CABLES, *UNDERGROUND ... MAINTENANCE, FAULTS, LOCATORS, MECHANICAL ...

... Title : Cable Fault Location Detector. ... of a cable, the cable having a ... (Author). Descriptors : , CABLES, DETECTORS, DIRECT CURRENT, ELECTRIC ...

This dataset shows escarpments, faults and kimberlites. Files: SPF08. ... escarpments, faults and kimberlites. The location of the faults were ...

A cable fault locator for sensing faults such as short circuits in power cables. ... patent, an underground cable fault indicator and locator ...

... the outer surface of the cable under test. ... The fault may then be located by properly ... Descriptors : *Test equipment, Patents, Faults, Detectors, Ground ...

We have been estimating deep heterogeneous structure and earthquake generating properties in the Yamasaki fault zone, which is a left-lateral strike-slip active fault with a total length of ~80 km in southwest Japan. We deployed dense seismic observation network, composed of 32 stations with average spacing of ~10 km in and around the Yamasaki ...

Major continuous fault scarps that extend over tens of kilometers or more and with topographic relief of tens of meters were first recognized in northern Sweden in the 1970s. Based on studies of Quarternary deposits these fault scarps were inferred to be end-glacial in age and to have been generated by major earthquakes with magnitudes as high as 8. ...

Let us consider a faulted transmission line with distributed parameters connecting two power systemsStatistical Algorithms for Fault Location on Power Transmission Lines Marija Bockarjova, Student summarizes the application of statistical algorithms for fault location on power transmission ...

Toshiba has developed a microprocessor-based high-accuracy fault locator for overhead transmission lines. This fault locator measures impedance to a fault point using voltages and currents at the local terminal of a transmission line. Its measuring error ...

Discrete geodetic measurements made near active faults may capture only small bits of a relatively complex field of deformation surrounding a fault, making it difficult to accurately describe the nature of ongoing activity along the fault. This difficulty is compounded when geodetic measurements are reported as ...

Numerical simulations of groundwater flow at Yucca Mountain, Nevada are used to investigate how faults influence groundwater flow pathways and regional-scale macrodispersion. The 3-D model has a unique grid block discretization that facilitates the accurate representation of the complex geologic structure present in faulted formations. ...

Western Turkey is seismically active and several new faults have been identified using data from a temporary seismic deployment. Because of the large population in Izmir, these faults are important for earthquake hazard assessment. In this research, we relocated several moderate earthquakes from 1992 to 2005 in the region using their differential arrival ...

Accurate estimation of the lightning striking points is practically important to find the fault location of the power line. Recent progress of the lightning locating technique has made it possible to estimate the striking points with the accuracy of less than 1km. To enhance the location ...

The Itoigawa-Shizuoka-Tectonic Line (ISTL) fault system is considered to have the highest probability for a major inland earthquake occurrence in the whole of Japan (The Headquarters for Earthquake Research Promotion, 2009). In regard to the dip direction of the local fault segments, the ISTL is divided into 3 regions. The northern part forms an east ...

For the Fault identification on Non-Control Area of Distribution network, a new method of distribution network fault is locating. Distribution network model based on GIS is introduced, mixed by Model of power system distribution network and Model of Geographic Information System (GIS) data. Distribution network ...

Numerical simulations of groundwater flow at Yucca Mountain, Nevada are used to investigate how the faulted hydrogeologic structure influences groundwater flow from a proposed high-level nuclear waste repository. Simulations are performed using a 3-D model that has a unique grid block discretization to accurately represent the faulted ...

Electromagnetic interference, or EMI, monitoring at an operating machine's neutral can detect many types of stator deterioration, as well as various design defects. Accurate, wide-band spectrum analysis may indicate a problem's location, its severity and its rate of change. This method can be sensitive enough to detect potential ...

The active Vienna Basin Transfer Fault system is related to the formation of several Pleistocene basins with depths of up to 170 m (e.g. Mitterndorf and Lassee Basin) and areas covering up to 270 km�. Detailed fault and geometric information of these Pleistocene basin's as well as the impact of faulting on the recent geomorphology of ...

Historical earthquakes are often strongly clustered in space and time. This clustering has been attributed to static stress triggering associated with tectonic fault interactions and/or fluid migration. Discrimination between these two models requires detailed information on the timing, location and size of earthquakes. The Matata earthquake sequence, ...

Fault patterns around the Creede caldera in the San Juan volcanic field suggest a clockwise rotation of the regional tension direction from NNE to ENE, beginning around 26 m.y. ago. This result is based on modeling in which faulting is attributed to a combination of regional tension and bending stresses in brittle layer at the surface. The authors model ...

We employed the models of Coulomb stress changes to investigate the features of the 1999 Chi-Chi earthquake on fault interactions and earthquake triggering. The seismicity examined by Z-map shows a butterfly shape of increased of seismicity consistent with the pattern for Coulomb stress changed associated with a thrust event. Due to the surface-cutting thrust ...

GeoEarthScope acquired more than 1500 square km of airborne LiDAR data in northern California, providing high-resolution topographic data of most of the major strike-slip faults in the region. The coverage includes the San Andreas Fault from its northern end near Shelter Cove to near Parkfield, as well as the Rodgers Creek, Maacama, Calaveras, Green ...

Earthquake responders need to know where the earthquake has caused damage and what is the likely intensity of damage. The earliest information comes from global and regional seismic networks, which provide the magnitude and locations of the main earthquake hypocenter and moment tensor centroid and also the locations of aftershocks. ...

This dataset contains the location of the Owens Valley Fault, running north/south, east of Independence....

Abstract: A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality of current ...

This map layer contains locations and information on faults and associated folds, in the United States, that are believed to be sources of significant ... ...

Abstract: A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality of current ...

In the high-strain-rate zone of Japan, located in the eastern margin of the Sea of Japan, large earthquakes of magnitudes up to 7.5 have often took place. Recently, two M6.8 earthquakes occurred in 2004 and 2007, showing reverse fault mechanisms, with a NW-SE compression. The aftershock distributions of both mainshocks are oriented in a NE-SW direction and ...

of map Introduction The purpose of this map (pl. 1) is to show the location of and evidence for recent movement on active fault traces within the Hayward Fault Zone. The mapped...

... An adaptive diagnosis algorithm that performs fault location and detection is pro- posed for the permanent fault case. ... 23 - Ink Page 27. ...

"The Maximum Fault Hike" on this page has a guide for a hike in the Borah fault area (in Idaho), in a location with a number of horst and graben structures.

The bibliography contains citations concerning research, development, and applications of electrical fault location technology. Detection techniques and devices for fault location in power lines, communication cables, electrical circuits, and electronic components are evaluated. Techniques in computer aided ...

Geothermal reservoirs derive their capacity for fluid and heat transport in large part from faults and fractures. In conventional reservoirs, preexisting faults and fractures are the main conduits for fluid flow, while in enhanced geothermal systems (EGS), fractures and faults that are generated or enlarged (i.e., through increases in ...

This dissertation addresses three different problems in power systems. The first problem is related to the fault location in complex topologies such as three terminal circuits with series compensation and mutually coupled line sections and distribution networks with distributed generation. Novel methods are presented by using traveling wave approach and ...

Historical earthquakes are often strongly clustered in space and time. This clustering has been attributed to static stress triggering associated with tectonic fault interactions and/or to fluid migration. Discrimination between these two models requires detailed information on the timing, location and size of earthquakes. The Matata earthquake sequence in ...

The transmission of electrical energy by use of underground cables is increasing. Fault location techniques have certain limitations; incipient fault detection and location would help reduce the maintenance cost of these lines as well as improve the relia...

To prevent inadvertent triggering of earthquakes by fluid injection, the Geophysical Laboratory of the University of Southern California is engaging in a detailed study of microearthquake activities along a portion of the Newport-Inglewood fault where the accumulating tectonic stress is interacting with massive oil pumping and water flooding. Microearthquake monitoring began ...

... Title : Random Access Memory Fault Location Capability of the Algorithm Test Sequence. Descriptive Note : Final technical rept. Jun-Oct 76,. ...

... cancelled), Joint Staff and other US Military (ie ... describes a performance monitoring/fault location apparatus ... performance status of on-line, in service ...

Following the 4 April 2010 M7.2 El Mayor-Cucapah earthquake, teams from UC Riverside, UC Santa Barbara, and San Diego State University installed an array of 8 temporary seismometers in the Yuha Desert area north of the Mexican border. This temporary array complemented the existing network stations and continuously recorded data from the aftershock sequence from 6 April through 14 June 2010. SCSN ...

Rapid, however uncontrolled, urbanization has become one of the major issues in hazard and risk management. This is certainly one of the major environmental problems in the world, today and in the coming years. In the past decade, in the reason of it is easily to demonstrate the morphological signals in active structures, the digital terrain models (DTM) have been used intensively to analyzing the ...

Geological and geophysical data are often combined with seismological observations to define faults that are related to past, as well as recent catastrophic earthquakes. Such a combination of information from different disciplines is rather required in areas such as the Aegean, where the sparseness of permanent seismological networks on one hand, and the high seismotectonic ...

Seismic risk is poorly known in many places on Earth. To save lives it is necessary -- but by no means sufficient -- to map the faults that pose a threat more accurately.

A two-step imaging procedure, including pre-stack depth migration (PSDM) and non-linear multiscale refraction tomography, was applied to dense wide-aperture data with the aim of imaging the causative fault of the 1980, M6.9, Irpinia normal faulting earthquake in a very complex geologic environment. PSDM is often ineffective for ultrashallow imaging (100 m ...

The surface rupture and seismicity patterns of the 1999 Hector Mine earthquake present somewhat of a puzzle to earthquake modelers. Surface faulting features imply that in the north of the fault system, the earthquake ruptured a segment of the Lavic Lake Fault with a north-northwesterly strike. However, the hypocentral ...

The Agri Valley is an intermontane basin located in the Southern Apennine seismic belt (Italy) whose formation in tied to large NW-trending trastensional and extensional faults active since Early Pleistocene. Recent faulting activity in the area is documented by faulted paleosoils and suggested by a M7 earthquake ...

There is substantial evidence for mechanical coupling between crustal faults and magmatic systems. Large earthquakes release accumulated stress onto a nearby magmatic system, triggering an eruption. Conversely, processes leading to physical changes in a magmatic system (e.g., injection or withdrawal of magma) may load stresses onto nearby faults, ...

As part of the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) project, a 12 x 56 km 3-D seismic survey was shot off the Kii peninsula of Honshu Island, Japan that images the accretionary complex and up-dip end of the interplate earthquake seismogenic zone. Here, we focus on imaging of the upper ~2 km of the megasplay fault zone located seaward of ...

Test Set Partitioning and Dynamic Fault Dictionaries for Sequential Circuits Abstract This paper dictionaries that are appropriate for efficient dynamic fault location. The partitioned test sets and partition fault dictionary, cre� ated at the time of diagnosis. The dictionaries used are significantly smaller

Pump flow rate (PMP 2). Power Distribution Unit. 0.0065 e4. Scenario-2. FaultType = abrupt. FaultMode = offscale high. FaultLocation = E161. FaultInjection = ...

Precise insight into surface rupture and the evolution and mechanical interaction of segmented normal fault systems is critical for assessing the potential seismic hazard. The Hat Creek fault is a ~35 km long, NNW trending segmented normal fault system located on the western boundary of the Modoc Plateau and within ...

We compare the performances of linear and non-linear hypocentre location methods working in 3-D velocity structures, a not-fully explored subject of main interest in the regions where the location problem is ill-conditioned. Comparisons are made between the linear location method known as SIMUL and the non-linear probabilistic ...

This paper presents a novel fault diagnosis software (called FDSAC-SPICE) based on SPICE simulator for analog circuits. Four important techniques in AFDS-SPICE, including visual user-interface(VUI), component modeling and fault modeling (CMFM), fault injection and fault simulation (FIFS), fault ...

The Wenchuan Fault Scientific Drilling(WFSD)is a rapid response drilling project to the great Wenchuan earthquake. It focuses on the fault structure, earthquake physical mechanism, fluid and in-situ stress, energy budget and so on. Temporal variation of stress and physical property in the fault zone is important information for ...

of the system is important for ease of fault location and isolation, and coordination of the protective devices. Circuit breakers (CBs) and fuses are provided at different locations for isolation of faulted loads to widespread system fault resulting from battle damage or material casualties of ...

... Patent applications, *Locators, *Measuring instruments, *Faults, *Conduits, *Pipes ... High frequency, Electric cables, Standing waves ...

We have investigated the geometry and detailed location of the Gifu-Ichinomiya (GI) fault, a buried fault considered to have ruptured during the 1891 Nobi earthquake. Based on an inversion of coseismic vertical displacements obtained by leveling surveys, we obtain an inclined fault plane showing a reverse ...

This paper presents the results of a study of non-invasive fault location techniques in gas insulated substations. The applications of infrared thermal imaging system and temperature sensitive paint to locate in-service faults with power follow-through were demonstrated. The infrared fault ...

We located a large number of aftershocks to determine the fault plane of the April 18, 2008, Illinois earthquake.Those aftershocks were detected by a sliding-window cross correlation (SCC) technique that we developed in this study. We applied this technique to continuous waveforms recorded by the Cooperative New Madrid Seismic Network stations. It detected ...

The results of a study on fault location techniques and damage analysis in Gas Insulated Substations (GIS) are presented. The objectives of the EPRI sponsored project are to gain a better understanding of in-service faults in GIS, to investigate the feasibility of thermal and electromagnetic techniques for locating ...

Using finite element models (FEMs), we examine the sensitivity of surface displacements to the location of fault slip, topography, and three-dimensional variations in elastic moduli in the context of a 2-D infinite thrust fault. We then evaluate the impact of these factors and fault geometry on surface ...

The combination of the Sunda megathrust and Great Sumatran Fault (SF) represents a type example of slip-partitioning. However, superimposed on the SF are geometrical irregularities, which would disrupt the strain field. The most spectacular such feature is the 35 km wide equatorial bifurcation. A dense local network was installed along a 350 km section around this bifurcation, ...

The Hayward Fault, one of the most hazardous faults in northern California, trends NNW and extends for about 90 km along the eastern margin of the San Francisco Bay region. At numerous locations along its length, distinct and elongate gravity and magnetic anomalies correlate with mapped mafic and ultramafic rocks. The most prominent ...

Continuous GPS networks, typically with a station spacing of about 30km, are still not dense enough to accurately characteristise the dynamics of active faults. Interpolation of these GPS results can improve our understanding of active faults and hence promote related studies. Moreover, even when the networks are densified in order to ...

Faults are one of many types of geologic disturbances that affect coal seams. They are common in coal seams of Illinois and have considerable effects on coal mining, such as: offsetting of the coal seams, creation of grades too steep for mining equipment to follow, weakening of roof and ribs, admission of water and gas into workings, and introduction of clay and other ...

Page 1. Receiver Sites for Accurate Indoor ... 4. TITLE AND SUBTITLE Receiver Sites for Accurate Indoor Position Location Systems 5a. ...

"Are fault loading and strain release rates constant in time and space?" This is a fundamental but as-yet unanswered question in active tectonics. In order to assess the constancy of fault loading rates, it is necessary to determine slip rates at a variety of locations along the fault and at a variety of time ...

... model that captutres the physics of fault occurrence more accurately than the ... order statistics generated by mutually independent but non-identically ...

The objective of this project is to develop a fault location system for transmission-type cable. The fault locator measures the distance from the cable terminal (pothead) to the fault as a fraction of the total cable length. A forward wave radar principle is used. Two of the cables of a ...

The Tatara-San Pedro complex is a long-lived Quaternary (925 ka to late Holocene), multi-edifice volcanic system erupted within a structural rhombochasm at the southern termination of an arc segment of the Southern Volcanic Zone of central Chile. This structural basin formed as a releasing bend between north-trending oblique slip fault strands. Local manifestation of regional ...

River systems constitute some of the most efficient agents that shape terrestrial landscapes. Fluvial incision rates govern landscape evolution but, due to the variety of processed involved and the difficulty of quantifying them in the field, there is no "universal theory" describing the way rivers incise into bedrock. The last decades have seen the birth of numerous fluvial incision laws ...

This paper presents simple and accurate mathematical formulation for determining the ground location

, but the indications are not sufficient to precisely locate the fault. In a communications network, a single fault may to resolve these ambiguities. These approaches are usually tailored to locating specific network faults major goal was to isolate faults related to the ...

is an AND gate: if both events B and C oc- cur, the system fails. (b) Dynamic fault tree; system level failure to represent identical events connected to the same location(s) in a fault tree. Dynamic fault trees augment-level failure events produce system failures. Every fault tree has a ...

consecutive steps. Forward propagation that determines, for each line in the circuit, its fault free value the line contains fault(s), or the line itself is faulty. The method uses the concept of Parallel- Pattern-Multiple-Fault from ISCAS`85 and '89 sets, to locate faulty and fault-free lines ...

Presents fault activity with an emphasis on earthquakes and changes in continent shapes. Identifies three types of fault movement: normal, reverse, and strike faults. Discusses the seismic gap theory, plate tectonics, and the principle of superposition. Vignettes portray fault movement, and the ...

An interpretation procedure has been developed to analyze repeat formation tester (RFT/sup TM/) pressure surveys quantitatively during well-to-well interference tests with a three-dimensional (3D) simulator in which only the pressure equation is solved. while retaining saturation effects on fluid viscosity and relative permeability. This approach accurately and efficiently ...

This tutorial describes how accurate surveys of the Earth's surface can reveal information about earthquakes and movement along faults. Topics include earth movements discovered after the 1906 Great San Francisco Earthquake, the elastic rebound theory, and how the locations of four survey stations and the angles and distances of the ...

A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality of current transformers strategically located along a cable. Trigger circuits are connected to each of the current transformer...

Fault models provide systematic and precise representations of physical defects in microcircuits in a form suitable for simulation and test generation. The current difficulty in testing VLSI circuits can be attributed to the tremendous increase in design complexity and the inappropriateness of traditional stuck-at fault models. This report develops ...

Sep 24, 2008 ... Location: Home Contains GN&C Fault Protection Fundamentals Contains GN&C Fault Protection Fundamentals Properties ...

... Title : The ISIS Project: Real Experience with a Fault Tolerant Programming System. ... ISIS is now in use at more than 300 locations world-wide. ...

Jul 5, 2007 ... Abstract: A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality ...

Jul 5, 2007 ... Abstract: A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality ...

Jul 5, 2007 ... Abstract: A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality ...

... A machine learning algorithm has been ... locating faults in electric drives. ... DRIVES(ELECTRONICS), LEARNING MACHINES, SMART TECHNOLOGY ...

... thus allowing state-of-the-art technologies such as Reflectometry Techniques to be integrated with existing Arc Fault Circuit Breakers (AFCB). ...

Abstract: A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality of current ...

Abstract: A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality of current ...

Jul 5, 2007 ... Abstract: A cable fault locator is described for sensing faults such as short circuits in power cables. The apparatus includes a plurality ...

The weight-decay technique is an effective approach to handle overfitting and weight fault. For fault-free networks, without an appropriate value of decay parameter, the trained network is either overfitted or underfitted. However, many existing results on the selection of decay parameter focus on fault-free networks only. It is well ...

In order to more accurately assess the seismic hazard posed by intraplate earthquakes, we need to understand the interaction of compositional, thermal, hydrological, and mechanical processes along the source faults. An outstanding question in intraplate settings is the relationship between fluids and faulting. We will summarize ongoing ...

The authors present an approach for measuring the spatial extent, duration, directions and speeds of rupture propagation during an earthquake using array signal processing techniques. They tested subarray spatial averaging and seismogram alignment with a variety of frequency-wavenumber techniques and found that the multiple signal classification (MUSIC) method gave the best resolution of multiple ...

In nuclear power plant siting, redetermination of hypocenters of instrumentally recorded earthquakes in the site region may be better than relying on routinely determined hypocenter locations listed in standard earthquake catalogues. Routinely determined hypocenters, particularly those of small earthquakes or of earthquakes occurring before the mid-1950s, may be so mislocated ...

There have been many techniques presented for finding the exact location of faults on transmission lines. In most of these approaches, fault locations have been detected through the use of lumped models. Since these models do not represent the capacitance of the transmission lines, significant errors are generally ...

o system engineers. However, it requires accurate input parameters, which are difficult to supply: Design and technology changes often complicate the use of past measurements. Testing a prototype, on the other hand, allows us to evaluate the system without any assumptions about system design, which yields more accurate results. In prototype-based ...

This paper focuses on the interpretation of seismic reflection, gravimetric, topographic, deep seismic refraction and seismicity data to study the recently proposed Ota�Vila Franca de Xira�Lisbon�Sesimbra (OVLS) fault zone and the lower Tagus Cenozoic basin (LTCB). The studied structure is located in the lower Tagus valley (LTV), an area with over 2 ...

The permeability changes resulting from finely comminuted material in fault cores and the fractured and brecciated rock in fault damage zones allows faults to channelize groundwater flow along the plane of the fault. The efficiency of faults as permeability structures depends on ...

In recent years, several studies have shown that non-volcanic tremor occurs in shallow, strike-slip fault zones, and are not confined to subduction zone interfaces. Regardless of the environment in which it is observed, tremor has been largely studied as a phenomenon independent of other types of seismic signals located nearby. Part of the treatment may ...

Mixed analog and digital mode simulators have been available for accurate transient fault simulation. However, they are not fast enough to simulate a large number of transient faults on a relatively large circuit in a reasonable amount of time. In this paper, we describe a gate-level transient fault simulation ...

This activity has two parts: the first part will demonstrate the weaknesses of simple fault models (like block diagrams) in depicting the process of fault rupture accurately; and the second part is centered around a fairly simple animation of rupture propagation, seen by an oblique map view, that attempts to show more ...

This report describes the manufacturing technology that will enable detection, identification, and location of digital faults in advanced digital missile electronic systems. Emphasis is placed on the fault diagnosis of large printed circuit boards contain...

Amenthes Rupes is a 380 km-long lobate fault scarp located in the eastern hemisphere of Mars near the dichotomy boundary. The scarp is marked by about 1 km of vertical separation across a northeast dipping thrust fault (top to the SW) and offsets heavily-...

This investigation was conducted to determine the location and continuity of faulting, the tectonic framework and the evidence for contemporary tectonic activity centering around the Hite Fault System, Wallula Fault system and Service Anticline in portion...

Fault lines were derived from a 1977 map of brittle structures. This ESRI line shapefile is intended to give a general idea of geological fault location and types in the Little Chazy River ... ...

The results of a study on fault location techniques and damage analysis in Gas Insulated Substations (GIS) are presented. The objectives of the EPRI sponsored project are to gain a better understanding of in-service faults in GIS, to investigate the feasi...

A laboratory technique has been developed for investigating the effect on a spherical wave of a fault located close to a spherical explosive charge that is detonated to generate the wave. The medium is a grout that simulates tuff, the fault is idealized b...

In the fault damage zone modeling study for a field in the Timor Sea, I present a methodology to incorporate geomechanically-based fault damage zones into reservoir simulation. In the studied field, production history suggests that the mismatch between actual production and model prediction is due to preferential fluid flow through the damage zones ...

We have developed a three-dimensional methodology for simulating earthquake sequences that accounts for evolution of temperature and pore pressure due to frictional heating and their diffusion normal to the fault, with the potential thermal pressurization (TP) of pore fluids during seismic events. Diffusion equations are integrated with a spectral method using a Fourier basis. ...

The Korean peninsula has been considered as a tectonically safe region from earthquakes, because it is located in a stable margin of the Eurasian plate. However, more than 30 Quaternary faults have recently been reported from the southeastern part of the Korean peninsula. The studied fault zone is an N-S trending ...

Model based methods for fault identification in rotating systems are gaining importance for the last three decades due to their ability to identify both location and severity of the fault. Model based methods are of different types. Among them, equivalent loads minimization method is one method. In this method, ...

Load modeling plays an important role in power system stability analysis and planning studies. The parameters of load models may experience variations in different application situations. Choosing appropriate parameters is critical for dynamic simulation and stability studies in power system. This paper presents a method to select the parameters with good generalization ability based on a given ...

Recent events have heightened the need for fast, accurate, and reliable biological/chemical sensor systems for critical locations. As droplet-based microelectrofluidic sensor systems become widespread in these safety-critical biomedical applications, reliability emerges as a critical performance parameter. In order to ensure the operational health of such ...

We study theoretically and numerically the process of fault interactions within a quasi-static faulting model at long, tectonic timescale. The model handles birth, growth and sliding of multiple straight but non-coplanar interacting faults, regardless of any coseismic dynamic slip events. The study is restricted to the 2-D elastic ...

Results from previous studies indicate that radon concentration values are significantly higher over selected sections of the Hayward fault than adjacent areas. This phenomenon is believed to be attributed to the presence of abundant fractures in rock associated with the fault, which act as pathways for radon as it migrates from depth towards the earth?s ...

Lithosphere can be divided into three main zones as a function of increasing depth: an aseismic updip zone, the seismogenic zone and a deep aseismic zone. Identifying the location of these zones is a key goal to understand how a specific seismogenic fault works. The evaluation of the seismogenic structures potential in tectonically active regions needs an ...

We deployed an extremely dense temporal seismic network in the source region of the 2004 mid-Niigata Prefecture Earthquake (thrust fault) on October 23, 2004, Japan. The seismic network consisted of 145 temporary seismic stations within a 30 km squared and had been kept within approximately a month after the mainshock. High accurate hypocenters of 708 ...

The giant Gullfaks oil field was discovered in 1978. The field contains oil reserves in excess of 1.3 billion bbl. The field is located in the northeastern past of Block 34/10 in the Norwegian sector of the North Sea. Gullfaks represents the shallowest structural element of the Tampen Spur and was formed during the Late Jurassic to Early Cretaceous as a sloping high with a ...

(node faults and link faults) [7]. MPLS allows capabilities which detect link and node faults. The MPLS fault management methods. These notification methods involve an RNT (Reverse Notification Tree methods can be activated at the same time. If a fault is located at node 4 ...

lines on Fig. 2). Even though these faults are mapped as inactive, they align with lineaments on the mor (simplified from MTA 1:500,000 scale geology map) and location of the seismic lines. Active faults are marked. (B) Simplified active fault map of the study area. The bold lines show the master active ...

by using diverse implementations. Self-testability enables on-line detection of faults (and CMFs included shown in Fig. 4.1a. Consider the fault pair in the presence of which, the signal line corresponding to Z or a stuck-at-0 fault, respectively. Finally, test points can help us perform quick fault-location and ...

An extensional duplex consisting of fault-bounded blocks (horses) located between how-angle normal faults is exposed in Proterozoic strata in the Purcell Mountains of British Columbia, Canada. This is one of the first documented extensional duplexes, and it is geometrically and kinematically analogous to duplexes developed in ...

. Since the faults happen randomly in any of the 1664 possible fault locations, the DFA may take quite.e., serial cable, PC card, etc.) ffl A fault inducing device such as an ion gun for CMOS chips or an UV lamp6.857 Computer & Network Security Final Project: Differential Fault Analysis ...

Volume 2 of this independent consultants report for the Bureau of Reclamation's Auburn Dam presents the results of the investigation for the potential for surface fault rupture at the site of the proposed dam. The potential for surface faulting was evaluated by the 'active fault concept', it is considered ...

, the Mosha fault, the North Alborz fault and south of the Robat Karim fault located SW of Tehran. On the other hand, the aperture of the temporary networks was small compared to the permanent TDSN. Having both (Fig. 8a). We did not locate important seismicity south of the Robat Karim ...

An improved method for fault location on transmission lines using the maximum likelihood estimate of the arrival times of reflected travelling waves is presented. The method is compared with previously proposed correlation based methods using results determined by ATP. The effectiveness of the new method for small fault angles and ...

The Karakoram-Jiali Fault Zone (KJFZ) is the most important active structure system in the Tibetan Plateau. This zone consists of two major faults (i.e., Karakoram fault and Jiali fault) and other minor faults in between. The Karakoram fault strikes NW to SE in the ...

This article describes how asset exposure locations and lightning-caused disturbances can be pinpointed by combining accurate transmission line asset location with lightning timing and location. Emerging analysis and hardware technologies are providing revolutionary techniques to detect, analyze, and mitigate the ...

In this paper two-dimensional finite element with an embedded edge crack proposed by Potirniche et al [1] is improved further for crack depth ratios ranging up to 0.9 h (h is the element depth) and for predicting natural frequency of a cracked beam more accurately. The element is implemented in the commercial finite element code ABAQUS as user element (UEL) subroutine. The ...

... at explaining the response to hypoxia and hypercapnia ... More accurate lung injury model. ... accurate determination of lung injuries, including location ...

Many well-determined moment-tensor focal mechanisms for earthquakes in volcanic and geothermal areas have significant non-double-couple components and involve volume changes. This observation rules out pure shear faulting, even on multiple faults, as the cause of such earthquakes, but is not in itself sufficient to uniquely resolve the source process. ...

Faults producing load disconnections or emergency situations have to be located as soon as possible to start the electric network reconfiguration, restoring normal energy supply. This paper proposes the use of artificial neural networks (ANNs), of the associative memory type, to solve the fault location problem. ...

We have developed a double-difference algorithm to relocate earthquakes recorded at global seismic networks, using differential arrival times for first and later arriving regional and global phases to invert for the vectors connecting the hypocenters. Differential times are formed from global seismic bulletins and are accurately measured on similar seismograms by time domain ...

In order to develop hydrologic characterization technology of fault zones, it is desirable to clarify the relationship between the geologic structure and hydrologic properties of fault zones. To this end, we are performing surface-based geologic and trench investigations, geophysical surveys and borehole-based hydrologic investigations along the Wildcat ...

Faults in an underground coal seam are located by firing a shot at one point in the seam and detecting the seismic reflections in an array of geophones. Signals from the geophones are recompressed and analyzed according to an exponential formula to give a holograph of the seam and to predict the fault pattern.

The Platanares, Copan (Honduras) geothermal area is located in a highly faulted terrain of Paleozoic(.) metamorphic rocks, Cretaceous clastic sedimentary rocks, and Tertiary volcanic rocks. All thermal manifestations are located along faults. The volcanic...

Technical methods suitable for fault location in the Finnish transmission network have been examined. The principles, main features of technical solution as well as the limitations of different methods are dealt with. The accuracy of methods have been exa...

A number of techniques already exist to locate cable faults. This project is a study of all available techniques, the advantages and short-comings of each. The objective is to recommend an optimum technique, and design a first order system encompassing th...

... Automated On-Line Health Management and Data Analysis. PROPOSAL TITLE: Embedded Dual-Function Arc Fault Circuit Breaker/ Locator based on OSA ...

The report is divided into three parts. Part A is entitled 'Fault Location in Cellular Arrays.' A detailed consideration is given to establishing efficient tests for locating faults in cellular arrays. The assumptions are made that access can be made for ...

The work consists of research in cable fault location and the construction of four field-test units based on the research. Swept-frequency sounding of mine cables with RF signals has been the technique most thoroughly investigated. The swept-frequency tec...

A method to design completely fault locatable combinational switching circuits is proposed. The networks that are obtained by the proposed designs require less hardware and are also easier to test than two level realizations. (Author)

Exploration and production geoscientists working in extensional provinces, whether the North Sea, Gulf of Suez, or Gulf of Mexico, need information about the geometries of normal faults at depth. Several workers have developed cross section balancing schemes for extensional structures. Using these geometric models, structural interpreters can predict ...

The noise reduction effect of singular value decomposition (SVD) relies on the selection of effective singular values. The characteristic of singular values of normal signal and noise being studied, it is pointed out that there is a sudden change in the singular values of normal signal, but not in the ones of noise. The concept of difference spectrum of singular value is put forward, which ...

Given pre-existing Groundwater Modeling System (GMS) models of the Horonobe Underground Research Laboratory (URL) at both the regional and site scales, this work performs an example uncertainty analysis for performance assessment (PA) applications. After a general overview of uncertainty and sensitivity analysis techniques, the existing GMS sitescale model is converted to a PA model of the ...

We relocated part of the aftershock activity in �?narc?k Basin and surrounding areas that are associated with the 1999 ?zmit earthquake Mw 7.4. Double difference relocation algorithm is used to relocate the aftershocks. The data set was obtained from a temporary seismic network deployed 10 days after the main shock by cooperation between Bo?azi�i University Kandilli Observatory and Earthquake ...

Single ended traveling wave fault location technology has been commonly used for testing cable for years. The waveform attenuation and distortion of the reflected pulse is an inherent problem to define the arrival time and the propagation velocity of traveling wave correctly. Aim at obtaining the required information of the incident and reflected pulse ...

Proxel-Based Simulation for Fault Tree Analysis Sanja Lazarova-Molnar sanja-based method can be very suitable for fault-tree analysis and provide very accurate results. We will also make of the relationships. Fault tree analysis is a deductive analysis which provides a method in which the causes

The California borderland is the geomorphic region offshore Southern California, extending from Point Conception to the Vizcaino Peninsula in Baja California, Mexico. Its western limits are delineated by the Patton escarpment to the north and the Cedros Deep to the south. Except for the west-trending Santa Barbara Channel and Channel Islands, the basin and ridge structures of this 250-km wide zone ...

We investigated the active and potentially seismogenic sources of the Lunigiana and Garfagnana extensional basins by integrating geological and morpho-structural surveys with seismological and seismic reflection data. The Lunigiana and Garfagnana basins are NW-SE grabens, originated in the hanging wall of a E-NE dipping low-angle detachment faults outcropping in the northern ...

Jun 16, 2011 ... Title: The status of accurately locating forest inventory and analysis plots using the Global Positioning System ...

... IN OPTICAL WAVEGUIDE DEVICES BASED ON AN ... A FIBER-OPTIC MACH-ZEHNDER AND A BULK-TYPE MICHELSON INTERFEROMETER. ...