seismic

Firing three ministers and shuffling another three might not always be a sign of a seismic policy shift.

For a system with a fundamental natural period in the long-period range, maximum displacement governs the seismic design.

More data needs to be collected to see whether this mechanism applies to similar seismic zones in the world, he said.

The fishermen said the company's seismic survey was frightening away fish.

The determination of a suitable velocity model is one of the crucial steps for seismic depth imaging in laterally inhomogeneous media.

They concluded that clashing tectonic forces were growing in Beichuan, ready to burst in an explosion of seismic energy.

The example shows that this method is simple high-precision and effective, which can be used for seismic design of curved beam.

Spectral seismograms are introduced as a means to recognize the morphology of the seismic signal, as arriving at the point of observation.

The dam was completed less than two years ago despite concerns raised at the time about building it so close to a seismic fault line.

can, the resulting seismic sea waves nay behave as if they had been generated along a line rather than at a point.

Achieving the necessary form was no easy matter, especially since Beijing is in an active seismic zone.

Seismic data is usually used for researching caprock displacement pressure in the areas where have few drilling wells.

Early in the day, seismic tremors hinted that lava might have started flowing from the volcano, said the Icelandic Met Office.

An appearance of seismic data as a diffraction, reflection, refraction or other similar feature produced by an arrival of seismic energy.

(also known as a quake, tremor, or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves.

Cross Well Seismic signal frequency is usually several times of the surface seismic or more, can reach hundreds of Hertz.

The law of 3D inelastic seismic response of structures is always among the important problems in the seismic research field.

The form of the supports is designed to be very reasonable to the static load, but its Seismic performance should be further optimized.

The recent seismic event in Haiti heralds the beginning of the Chaotic Node we referred to in our last communication.

As well Known , both of the wind loads and seismic loads acting on the columns change along the distance from the ground .

Indonesia is in a very active seismic zone, also, but by virtue of it's larger size than Japan, it has more total earthquakes.

This report is prepared to provide the state of the art of the seismic behavior as well as seismic design of steel shear walls.

But the seismic shocks shattered the Soviet Union, bringing freedom, or at least the chance of it, to 15 new countries.

Seismic waves are waves that travel through the Earth, most often as the result of a tectonic earthquake, sometimes from an explosion.

A map view of a particular reflection in a 3D seismic survey, as opposed to a horizontal (depth) slice or at a given time (a time slice).

In oil seismic exploration, multiple suppression is always one of the key and difficult problems.

The thick loess area in southwest depression of Tarim basin is always one of the most complex regions for seismic survey.

It was proven theoretically and practically that this method was effective to de-noise in seismic data of blasting.

Now, after 40 years of less powerful seismic activity, there have been a dozen earthquakes of 8. 0 magnitude or greater.

The technique of cross hole seismic tomography, with its high resolution, can be used to detect the underground fine structures and goals.

IN A land of volcanoes and earthquakes the seismic shift is all too common.

By making synthetic seismic record of well data, a fine horizon calibration for the strata of Cretaceous and Jurassic are made.

'It would take an enormous and seismic event to change the drift of these powerful forces before November, ' he said.

The Seismic attribute analysis was an important means for reservoir prediction, particularly for the exploration of complex reservoir.

In many, but not all, applications the seismic isolation system is mounted beneath the structure and is referred to as 'base isolation'.

we made analysis of panel display feature of every segment by researching seismic face and predicting sand body.

As it is well known, velocity is one of the key techniques in the flow of seismic data processing.

For the seismic prospecting data with additive noise, it has been put up to deal with the data using the chaotic oscillator system.

By testing and checking up, the feasibility and validity of the system for forecasting potential seismic disaster were proved.

And it is in the midst of a strong seismic zone that stretches in a broad swath from Turkey to the Arabian Sea near India.

When the two of us left the New York Federal Reserve on Sunday night, we knew that the financial landscape was in for a seismic shock.

It is shown from seismic investigation reports in several decades that this kind of structures do not function very well in the earthquake.

However, such a strategy cannot always obtain the best effect of seismic control, not to mention its high cost.

However, bright spots and low velocity anomalies is not always the seismic responses from oolitic reservoirs.

amplitude of the vibrations, and the region of installation, determining the wind and seismic loads.

That is to say, it is possible and feasible to detect fracture-cave system by way of seismic means in carbonate reservoir.

Help is still desperately needed even a year from the seismic tremor.

The lowest magnitude of completely located earthquakes characterizes the detection ability for a region with a seismic recording system.

However, its dynamic characteristics and response under seismic loads have never been studied before.

One method used in a geophysical exploration is called seismic method.

Experts anticipate that in the relatively near term this software-driven advance will produce a seismic shift in radio design.

Wind load and Seismic load to be used for calculation shall be in accordance with Para. 1. 6 of this specification.

Further, seismic comparison is made to integrate the log interpretation into a more regional framework.

Aslo, could the melt cause a change in certain gases and bacteria within the earth enough to cause an increase in seismic activity?

A benchmark test with experimental data was conducted to verify and improve the codes used for the seismic analysis of reactor cores.

The liquefaction of seabed under seismic load is one of the main reasons that govern the global stability of submarine pipeline.

Seismographs are also used to record ground movement with seismic sensors in place around the volcano.

An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves.

Calais, the geologist, noted that frequent seismic activity is as common to Chile as it is to the rest of the Andean ridge.

Underground structure in saturated sandy soil might be subject to severe damage due to seismic liquefaction.

the multi-dimensional seismic response of latticed structures is the result of each component earthquake.

Automatic recognition of seismic identification is one of the main aims of seismic signal analysis and control.

The impact of coal mine goaf on seismic surface ground motion and its dynamic stress distribution around the tunnel was investigated.

Most occur along the "Ring of Fire" , a belt of seismic and volcanic activity around the Pacific rim that includes California and Japan.

"So because previous seismic activity in the area was so strong, it (Zipingpu) could have induced an even stronger tremor, " he said.

Coulomb Theory and Mononobe Theory are usually used to calculate static and seismic earth pressure respectively in engineering practice.

Unlike Japan, Taiwan has no sophisticated system in place to warn residents of seismic activity.

Determination of the local seismic network, located in the earthquake focal depth of 17 kilometers below the surface.

The finding comes from an analysis of the seismic record from the lead-up to a devastating earthquake that hit Turkey in 1999.

The seismic prediction of reservoir is one of the core technology about exploring lithologic hydrocarbon reservoir.

They have also been used efficiently in seismic retrofit of existing steel or reinforced concrete buildings.

The concept of the seismic bearing capacity reserve coefficient of the brick masonry structure was set out firstly.

These appealing characters of this Improved method would make It effective to model seismic wave propagation in complex media.

Therefore, analyzing the rule of seismic response of this kind of bridges is of great practical significance.

They're prophecy for the kind of seismic, terrestrial effects of the math that we're making.

Although there have been attempts to predict earthquakes over the years, it is not possible to get a precise seismic forecast.

Seismologists from all over the world flooded to the seismic zones to help.

To make a precise evaluation of the seismic pounding response of bridges, a more accurate simulation model should be developed.

An oil company could mount a Blackbox on an offshore oil rig to run on-site operations as well as seismic monitoring.

Young people who have grown up in the Internet era don't realize how seismic the changes have been.

Seismic grade is to determine the structure component earthquake-resistant calculation and aseismatic measures of the standard.

The general tend of the conclusions is applicable for the design of high arch dams located in high seismic area.

The concept of eccentric bracing in seismic design of steel building frames has gained substantial acceptance in recent years.

It has greatly improved the accuracy and efficiency of seismic interpretation, and made the final results more reliable and intuitive.

This paper summed up the content, characteristics and status of the anti-seismic design home and abroad comprehensively and systematically.

In a process of seismic data processing, the wavelet processing with mixed phase is always an important project.

Reflections are the main carriers of subsurface structures, and also the main information used in seismic imaging.

The large ground displacement caused by seismic liquefaction is one of the main reasons which induce the failure of engineering structures.

The result of numerical tests indicates that the method is effective for the forward model of time-lapse seismic.

Log-constrained seismic inversion is one of the important technologies for research on subtle reservoir.

Below the influence of global finance seismic sea wave, activity of capital market IPO for a time icebound .

The seismic wave did not being affected generally in easy near surface or plains region.

In the end, a conclusion is drawn that this type of frame has ideal seismic behavior and energy dissipation behavior.

Roof is composed of heterogeneous rock. When roof failure happens, a large amount of energy would release in the form of seismic wave.

The forecasting of seismic damage becomes more important and urgent during the activity time of the earthquake.

Geophysical prospecting methods including seismic prospecting, gravity prospecting, magnetic prospecting, electrical prospecting, etc.

seismic load has maximum effect on the moment of column, second is sidewall and the last was backplane.

Results indicated most of the permanent ground displacements occurred within a few minutes of the arrival of the first seismic waves.

These influences should be rationally considered when dynamic design and seismic analysis of this kind of special shell structures are made.

Israeli television reported that the test was to calibrate the seismic instruments, improve the seismic monitoring system.

Wave-velocity test technique is one of seismic exploration methods. It is an easy, rapid and accurate method of in-site measurement.

The seismic numerical simulation technology is one of the critical methods in the seismic exploration.

The study may be used for reference in engineering design and for the revision of the design code for seismic isolation.

Finally, the anti-seismic capability of this structure is proved to be excellence by seismic response analysis.

The seven were on a committee that had been tasked with assessing the risk associated with recent increases in seismic activity in the area.

Concrete filled steel tube structure is characteristic of good bearing capacity, ductility, anti-seismic capability and easy construction.

This paper mainly involves earthquake response digital simulation and engineering design of seismic isolation pipelines across the fault.

How to efficiently eliminate multiples in seismic data processing is a difficult problem which has not been well solved so far.

All of this seismic activity has left some wondering if earthquakes are increasing in frequency, or if it just seems like they are.

seismic wavelet extraction is one of the very important part of seismic inversion.

This algorithm has been used in the 3D seismic data scientific visualization.

The name was coined for the appearance of the event in unmigrated seismic data.

The maximum positive or upward deflection, also known as the crest, of the seismic wavelet.

Want to, you'll accept it, let go of your yuan god accept it, from now on, your destiny can get a seismic change!

Numerical experiment results indicate that the method is correct and efficient, and is good for the subsequent seismic data processing.

The detection of a seismic event that passed a specified threshold might trigger more frequent sampling or complementary data presentations.

Data acquisition unit is one of the core components in the new type of seismic data acquisition recording system.

Seismic retrofitting is optional, so structures built before construction standards were tightened in 1981 might be vulnerable.

due to good performance while suffering static and seismic loading , steel structure is extensively used in civil engineering.

Seismic studies of the islands suggest there may be a lot of oil and gas beneath waters that Argentina has always claimed as its own.

This discipline, together with seismic lithology, composes the main parts of seismic sedimentology.

The planned reactor would have a containment vessel, but it would be located in the same seismic area as the current Metsamor plant.

Based on the random vibration theory, a state-of-the-art of the seismic response analysis methods of engineering structures is introduced.

The seismic capacity of this structure would be evaluated with the capacity spectrum method.

Caitlin believes the seismic waves are felt in the toenails and move up to the ear via bone conduction.

The simulation of seismic data from 3D Earth models is an integral part of the decision process within the exploration and production cycle.

Wave equation method is one of the fundamental techniques for seismic modeling and imaging.

At last, the influence of slabs and seismic design on PC resistance of the two RC frames is discussed by analyzing the PC law of RC frames.

These results indicate that the effects of concrete slab should be considered in the seismic design of the connection.

The conclusions of this work could be used as a primary guidance on the seismic design for the similar underground engineering.

He said seismic instruments detected 83 volcanic quakes, a majority of which were tremors associated with rockfalls.

Such amplitude variations would be predicted on the basis of principles governing seismic velocities in heterogeneous media.

South Asia, seismic tsunami caused by the radioactivity pollution of Japan, the horror of that self inspire book is popular.

Its unconformity surface as the sequence boundary of Shawan formation can be identified from the seismic profile and well section.

The invention discloses an air gun source which is a seismic source applied on oil seismic exploration.

Globally, seismic prediction is still in its stage of development, falling far short of social needs.

However, consistent and reliable behavior prior to seismic events, and a mechanism explaining how it could work, still eludes us.

Energy dissipation devices can effectively reduce the seismic response of these building systems.

These conclusions provide important theoretical grounds for reasonable utilization of the seismic processing and interpretation method.

Therefore, further research on seismic performance about it is of great theoretical significance and practical value to structure design.

He did, however, note that seismic shocks could serve as an early warning of an eruption, giving people plenty of time to get to safety.

Low temperature and seismic resistant is one of the structure quality criterion.

Analyses To explore the minor faults in coal mine by the seismic reflective wave method must be started at the field work method.

The results show that isolated structures is still in elastic state under rare earthquake and the structure has better seismic performance.

The sensor was mounted with a magnet and seismic mass to enable easy attachment for recording data in the face (see figure on the left).

So, regularization processing should be carried out for seismic data during merging processing to eliminate the differences.

The general compression way is not satisfied with the mass seismic data.

The influences of the damping ratio, seismic parameter, waters speed on the response curves of the system are analyzed.

In the petroleum seismic exploration circles, seismic inversion technique is an significant technique for reservoir prediction.

A ductility theory is adopted in anti-seismic design specification of New Zealand, Japan, the United States and the Europe country .

The slope has amplification effect to input seismic waves, and the effect become extremely prominent around the crest of the slope.

The seismic activity of this zone is discussed in terms of seismicity , geotectonie, geophysics, etc.

Increasing efforts have been made to seismic exploration in areas with irregular topography.

It is irregularities of this order which must be considered as seismic " roughness " .

It uses the vibrations produced by a drill bit while drilling as a downhole seismic energy source, which makes it belong to passive seismic.

Haiti's TV, cell phone networks and radio stations were knocked off the air by the seismic jolt.

The seismicity or seismic activity of an area refers to the frequency, type and size of earthquakes experienced over a period of time.

Furthermore, we simplify each building as a three-degree-of-freedom-system and simulate the pounding responses under seismic excitation.

In this paper dynamic analysis and a seismic analysis of offshore structures are studied with response spectrum theory.

The composed parts of machine bracket and perforated knife roller are high in rigidity, with good anti seismic and stable, brisk operation.

In such a case, the country newly formulated the latest norms and suggestions for seismic reinforcement.

There were a great number of them, both before and after the seismic publication of "The Good Earth. "

The seismic response by damper after the elastic-plastic state is analyzed, and a reasonable way for adjacent structural damping.

Therefore, the seismic and dynamic load affected to the stability of the goaf should be considered in the mining design.

The application used for testing is a seismic data retrieval service.

This paper studies the condition that structures should be in when hysteretic dampers mitigate seismic action most effectively in theory.

Seismic dynamite source is one of the key techniques in seismic data acquisition.

The results indicate that the deformation and strength of the structure can satisfy requirements, and it has favorable seismic behavior.

The tremendous destruction of the earthquake load makes the seismic research of structures become a subject extensively concerned.

Results of this research can provide certain references to stability analysis of underground engineering in highly seismic regions.

The system Dr Newman and Mr Convers have developed taps into hundreds of seismic monitoring stations around the world.

This article gives a detailed comparison between the seismic action calculating methods proposed in Chinese and Ethiopian seismic codes.

Therefore, seismic shear wave detection can be used to divide Quaternary unconsolidated strata.

The influence of vertical seismic action on seismic dynamic failure of jointed rock mass should be considered comprehensively.

Accordingly leads to a new topic: structural natural periods greater, more intense seismic response, seismic measures more complex.

In seismic data processing, the interference of multiple reflections is still a large problem, especially for marine dataset.

The aim of seismic exploration in a panel is to ascertain the minor faults and folds, the subtle geological structures in coal measures.

The tests of synthetic models and real seismic data prove that good interpolation results can be obtained by the improved method.

By so doing, researchers attempt to identify "gaps" or anomalies, in the pattern of seismic activity.

They are designed to pick up the echo of the seismic vibrations created by contraptions called "thumper trucks" pounding the ground.

Earthquake monitoring and forecasting by means of remote sensing tools has become the forefront of seismic research and hot topic.

If it is faster than the systems used by tsunami early-warning centres, these may benefit from integrating it into their seismic software.

The result shows that the most fragile part of a bridge which under seismic load is the support system, then the pier and the base follow.

Two-way communication might also be possible if the stations were equipped with seismic sensors and laptop computers.

The analysis of time history is an important structure of a main seismic design method, its primary problem is the input of seismic motion.

It applies to the slope retaining project in the general area, flooding region and the seismic region.

KL filtering is one of the important techniques in seismic data processing.

Currently, the structural seismic evaluation is one of the important research directions in PBSD.

Remote control blaster system is one of seismic exploration instruments.

Structural modal parameter identification using seismic observation records receives full attention in earthquake engineering.

Ed Lyman of the watchdog group Union of Concerned Scientists says current risk estimates for seismic and tsunami hazards may be outdated.

The team has accumulated measurements from oil well cores and seismic imaging around the coast of Scotland.

The sequence interfaces show evident identifying characteristics in seismic reflection terminal, lithology, and electrical property.

The shallow seismic reflection, as a primary physical prospecting method, is widely applied in engineering investigation.

Finite-frequency tomography(FFT) is a new method to invert deep structure of the earth in the age of broadband seismic observation.

The seismic hazard of sites must be evaluated and aseismatic design must be adopted for structures before projects are constructed.

The research results can be utilized for displacement-based seismic design and seismic performance evaluation of RC structures.

Other issues involving external impacts on the operating environment include seismic events, high winds, high water, and landslides.

The computation indicates that the transverse seismic response of the tunnel can satisfy the request under static effect and earthquake.

Seismic activity is one of the prime early warning signals of volcanic hazard.

When an earthquake occurs, it releases energy in the form of seismic waves that radiate from the earthquake source in all directions.

The result indicates that the seismic response can be effectively reduced by adjusting the mass, stiffness and position of sub-structure.

The separation of the cross-well seismic wave field can be regarded as an extension of the VSP wave field separation.

High vertical resolution impedance can be obtained by seismic stochastic inversion which is not limited by the bandwidth of seismic data.

Complex structural reservoirs are the focus of exploration at present, but are the bottlenecks of high resolution seismic exploration.

Bombast notwithstanding, the small size of seismic signals from the tests of both countries has cast doubt on the declared explosive yields.

The node has good ductility performance, can play a role in passive energy dissipation, and can be used in seismic building structures.

This thesis presents a study of seismic isolation of long-span spatial structures using SMA -rubber composite bearing.

Therefore, seismic migration technologies urgently need to be developed to adapt to the complex geological structure.

The rapid distribution of seismic, tsunami and GPS data immediately prompted scientific investigations of this event.

Its seismic reflection shows strong amplitude on seismic section by its seismic velocity of sandstone body and its adjacent formation.

The essential feature of the seismic wave propagation in viscous-elastic media is the attenuation of its energy.

The variation of seismic passive pressure coefficients increases with the increase of the magnitude of the earthquake acceleration.

From the time, the seismic active period and a period of quiet alternating cyclical phenomenon.

The tentative application of this method to deep seismic data interpretation in the Zhongyuan oilfield yielded some useful results.

This provided consolidated experimental and theoretical basis for seismic analysis and design of such structural frame components.

Secondly, numerically simulated all the possible mutual relations, and got rid of the false impression in the seismic cross section.

according to different results , we consider that stronger event is slight possible once more in the seismic region.

Introduction of the Program "Studies for the Seismic Safety Model of Energy-supplying Systems"

Seismic geophone is key part of seismic data acquisition and its properties have direct influence on quality of seismic data.

The existence of band gaps of photonic crystals suggests wide applications in seismic resistance and vibration isolation of structures.

Through above we summarized a set of methods for the seismic acquisition in this kind of transition area.

The random signals sent out will either be positive, indicating a seismic rumble, or negative, meaning nothing at all is played.

The Tunguska event included seismic waves and infrasonic disturbances that were recorded around the world.

The method was used to process seismic while-drilling reference signals, and the source signals were strengthened.

It suggests adopting two-stage in designing cantilever frame structure and calculating the seismic coefficient of the important component.

In this paper, overall seismic performance of the insulators structure used in reactors is analyzed.

Turkey lies in one of the world's most active seismic zones and is crossed by numerous fault lines.

In seismic exploration, it take us very difficulty when a area covered with the igneous rock near-surface.

Multinomial factors should be considered in the stability analysis and hazard prediction of seismic loess slopes.

The pre-evaluation of earthquake damage is not the base of evaluating seismic capability of cities.

The rapid development of modern technology, using seismic imaging system that will allow us to understand the depths of the Earth.

Southern California -- where the nuclear plants are located -- is in a high seismic area.

Then, the method was applied to control seismic data acquisition quality, to analyze and examine shot-point drift and receiver-point drift.

As load-bearing components of the masonry house, walls have been the key factor in surveying and researching of seismic damage.

A research paper by a group of Chinese scientists concluded that the weight of collected water clearly affected seismic activity.

Complete seismic design of buildings includes design principles, earthquake effect calculations and structural seismic measures.

Combined with seismic damage of frame in Wenchuan Earthquake, failure mode of the infilled walls have been analyzed.

Thus, whether solving this problem by optimizing seismic acquisition observation system, is the focus of this paper.

The conclusion about of the destructive characteristic has great reference value for the seismic design and quakeproof work.

It is of great theoretical and practical value for studying collapsing and sliding of slopes triggered by seismic loads.

As more seismic countries, New Zealand since the 70s of last century building earthquake-oriented design, a dedicated construction law.

Experimental research and finite- element analysis on the seismic performance of fiber- reinforced plasterboard filled with concrete.

The seismic events may be related with the tectonics and magma activities of the North China Block in the Neoproterozoic.

Study on the network performance of electric power system under seismic action is an important subject of reducing seismic affection.

Imagine an online seismometer that notifies a student of a seismic event through email or instant messaging.

paper also applied to the seismic coherence technology to identify characteristics of small faults and fractures.

China is a country which has extensive distribution of earthquakes between the Mediterranean and the Pacific coast seismic zones.

In oil-gas exploration, the pressure prediction mainly depends on seismic velocity spectrum, but the precision of seismic velocity is lower.

This has been a major event in Chines history of seismic science.