excitation

It is possible to describe the excitation spectra in terms of elementary modes of excitation.

With feedback remote sensing, you connect extra sense wires to the point where the excitation voltage wires connect to the bridge circuit.

The adjacent girders of isolated bridge with lead rubber bearings are easy to collide with each other under earthquake excitation.

Such a polarization-gated excitation scheme creates an intense linearly polarized high-gradient evanescent field for electron acceleration.

it offers 24-bit resolution, an on- chip programmable gain amplifier and a pair of matched RTD excitation current sources.

The aim of this study was to determine the optimal impedance range required during RF excitation based on an assessment of image quality.

Neutrons, being electrically neutral particles , do not produce ionization or excitation directly in their passage through matter .

As an application of the proposed method, the excitation control of a three-node power system with nonlinear load is discussed.

As a result of selective excitation, heat will be generated in a homogenate leading to an increase of its temperature.

The proposed two models can be used in analysis and design of a structure system containing braces under earthquake excitation.

This classification was helpful for people to understand the essential law of hydraulic excitation.

Then, modal experiment of cabinet is carried out with impulse excitation method and corresponding modal parameters are obtained.

The investigating engineers termed this process "synchronous lateral excitation, " and came up with a mathematical formula to describe it.

The failure of crystal brake-tube in the static excitation system is one of common failures. The reasons of causing such failure are many.

Modal test based on ambient excitation is almost the only way to understand the dynamic property of the in-service cable-stayed bridge.

In this paper, the nonlinear responses of a clamped-sliding buckled beam to a harmonic axial excitation are investigated.

A synchronous generators cloud model excitation controller and a cloud model valve controller are designed respectively.

A higher temperature flame than atomic absorption spectroscopy (AA) is typically used to produce excitation of analyte atoms.

The IC provides both the excitation for the LVDT as well as converting the output to dc level with a user selectable gain.

The excitation circuit is one of the important parts of Coriolics mass flowmeters.

The simulation verifies the feasibility of this fault diagnosis by the checkout with the output responses at different input excitation.

Then carry out a research and analysis to excitation system and give the mathematical model of excitation system.

The coupling of the excitation beam and detection cell was realized by means of combination of lens and pinhole.

because the ruthenium may be subject to photodegradation , the total exposure to the excitation energy should be minimized.

The under-excitation operation of power generators is difficult to carry out in Guangdong power grid due to some misunderstanding on it.

Then the impurity solution was transfered to flat graphic electrode to perform the spectrometric analysis by an A. C. arc excitation.

The velocity and the density can be obtained from the reflective records of the source excitation in a stratified medium.

This scheme removes the errors associated with dc excitation at the expense of a more complex design.

There are several types of excitation to which structures may be subjected.

TIR-FM works by means of limiting the depth of penetration of the excitation light within this narrow region.

Synchronous generator excitation system is an important part, directly affect the operating characteristics of generating units.

and the surface of the excitation point is electroplated with inert metal oxides.

The difference of nozzle now path in manufacture is one of important factors which influence excitation to blade.

The result of harmonic analysis is validated through machine tool test of self-excitation vibration, and the stable region is found.

For anharmonic trap, this excitation has energy-selective characters, and depends on the frequency spectrum of the current noise.

The response of vertical vibrating system with an impact damper under simple harmonic excitation is analyzed by numerical simulation.

The company spirit of "make the best use of only the best use" approach to maximize the excitation of staff enthusiasm and creativity.

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

The dynamic response of a truss to fuzzy-random changes in design parameters under stationary random excitation is studied in this paper.

A study had been carried out in this paper on the dynamics model of interference excitation caused by self displacement of rolling bearings.

Applications to the case of electron diffraction including for non-zero excitation error are discussed.

Since an ac-excitation source will reduce offset and drift effects, much smaller excitation currents can be used in many applications.

This technique involves maintaining a constant energy difference between the excitation and emission wavelengths.

Systemic investigations of the levitation force and lateral force relaxation characteristics with time without external excitation.

The methods measuring excitation energies and temperature of highly excited nuclear matter and their reliability have been summarized.

It contains a precision instrumentation amplifier, filtered output and a built-in excitation supply.

During the research of a car's ride comfort, getting the correct random road input excitation is a very important premise.

The principle of two-photon excitation and the features of femtosecond laser three-dimensional micro-fabrication technology were presented.

The photoluminescence spectra observed experimentally are variable under different excitation wavelengths at room temperature.

Experimental results show that the designed apparatus meets the demands of synchronous generator excitation system for model identification.

This paper studies chaotic motions in a nonlinear oscillatory system perturbed by external harmonic force and bounded noise excitation.

The dissertation conduct the research in terms of excitation system of Electromagnetic Flow Transducer.

The system function of the structure-sound response from random excitation is built up.

Decreased excitation means that the self-heating effects of current flow in resistive sensors can be greatly reduced.

Cores made of soft magnetic materials - Measuring methods - Part 3 : magnetic properties at high excitation level.

however, this method cannot accurately describe the eddy current distribution in the excitation winding and its effect to the loss.

A parameter study is carried out with input energy spectra of linear SDOF system under earthquake ground excitation in this paper.

In cathode ray tube display, the continuation of light emission from phosphor after excitation by the electron beam.

These effects could be explained by the difference in the cross-section of collisional excitation between krypton, argon and helium.

We obtain the relation between the frequency of the oscillation and the instric excitation of the system.

How fast will an increment of the excitation voltage reach 95% of the difference between ceiling voltage and the system voltage rating.

Engineering structure parameter identification method applied with time series ARMA modeling under ambient excitation was researched.

Track irregularity is an important excitation source which can cause vibration of the Traffic-Track system.

The above work and results have proved that torsional vibration response can be calculated with the transfer function and excitation torque.

Objective To observe the autofluorescence of dated fundus hemorrhage excited by the excitation light with different wavelength.

A given percentage change in excitation is countered by the same percent change in the conversion process (or vice versa).

There's a probability that that excitation is going to get turned back into kinetic energy.

Therefore, inhibition excitation inrush current of the transformer no-load switching has important economic value.

In this paper, an excitation circuit is developed, and its characteristics and operating principle are analyzed.

The frequency response functions of relative displacement and absolute acceleration are derived under acting of harmonic ground excitation.

Surface and phased array receiving coils in MRI typically require that RF excitation be accomplished using the body coil.

This example, the output code is sensitive to relative changes between the bridge excitation and reference voltage.

That means shock excitation force will be produced in Z axes, which will destroy the balance of the rotor outside of the main control plane.

This paper provides an analysis of a switched reluctance motor (SRM) under two-phase excitation.

Photoluminescence that persists for an appreciable time after excitation.

Frequencies of different mode steps, modes and damp ratios of the model were tested by ambient excitation method and sine excitation method.

The feasibility of the technique was verified using an example of a structural response test with basement excitation.

The tests include seismic wave excitation parameter test, observation system parameters test and seismic reflection data processing test.

In the absence of ground acceleration data, the nature of the input excitation can be inferred only from structural behavior.

These conclusions also have been validated by our experiments of acoustical excitation and PIV measurement.

Our work began on the assumption that the temperature plateau of ALADIN caloric curve was resulted from the compression excitation energy.

The influence rules of absorber structure parameters, exterior excitation and air speed on the increased oil temperature are also analyzed.

Automotive powertrain is the main source of vibration excitation of the vehicle, which has great influence on the ride comfort.

The nonlinear dynamic of nonlinear viscoelastic shallow arches subjected to the external excitation is investigated.

his paper introduces the working principle of the "electrostatic excitation type fiber fineness meter" .

At present, the end of drill string (DS) is simplified as a hinge in FE analysis and the excitation is assumed periodic.

Nonlinear characteristics are observed in self-excitation of helicopter with elastomeric lag dampers implemented.

One of the most paradigmatic examples of spatiotemporal self-organized patterns is a kind of spiral excitation waves.

This paper presents a method used to the current transformer excitation characteristic modeling based on RBF neural network.

Conditions of excitation voltage and its frequency on contactless conductometric response were optimized.

Configuration of stator and rotor, excitation mode and working principle for various switched reluctance machine are expounded.

Finally, the multi-objective saturation excitation controller for nonlinear system is designed in this dissertation.

Therefore, the study of generator self-excitation due to load rejection of UHV transmission lines has very important significance.

A new approach to determining optimal excitation controller gains for the damping of synchronous generators is developed.

Reactive stepping motor rotor windings without, the excitation of stator winding respond to realize stepping operation torque.

This paper explores the effectiveness of using supplementary excitation damping control, or SEDC, for damping such kind of SSO.

In this paper excitation modes and control strategies of levitation force winding for magnetic suspension bearing less motors are analyzed.

It's only in the recent past that we've started to appreciate that the balance of excitation to inhibition is what's important.

The parameter setting of voltage regulator directly impacts the forced excitation effect and transient stability of power system.

The most methods for the high frequency excitation of the audio signals are to generate its higher harmonic signals.

Through experiment, we have proved the perfect control effect of this excitation control system.

And as the span of the CFST arch- bridge becomes larger and larger, The uniform excitation cannot satisfy the anti - seismic checking.

Using excitation method, combination of rewards and punishments on the three other methods were tested to be corrected.

A new improved adaptive law is derived, with the improved adaptive law, an adaptive synchronous machine excitation control is designed.

The excitation system parameters of large synchronous generator have great effects on modern power system stability studies.

The algorithm of the S acceleration & deceleration curve and the excitation current adaptive controller.

Here phenomena include also the excitation-response relationships of natural materials for which ideal material serve as models.

Simulations demonstrate that the finite-time excitation control strategy is more effective than some other excitation controllers.

The generators are of drip proof with rotary field type and adopt harmonic excitation system, easy operation and maintenance.

Among DC electric motors most widely used as servo motors are commutator motors with separate excitation and variable armature voltage.

In this paper, the structure characteristics and operation principle of hybrid excitation brushless DC motor was researched.

Secondly, core technology of double-fed induction generator is excitation control technique of low frequency Inverter.

A method of calculating dynamic reliability of stochastic truss structures under stationary random excitation is discussed in this paper.

The results show that the velocity increases when the neighbor radius grows, and decreases when the excitation threshold increases.

Consequently, asynchronous excitation and fibrillation of muscle fibers are observed.

Come up with a single phase transformer full excitation system with secondly winding.

In the fifth chapter, the damage identification of structures with unknown input(excitation) information is researched.

It is vital to choose the right excitation characteristic of the nonlinear inductor when analyzing ferroresonance.

The Paper further discusses the optimization of excitation regulation parameters and its application on the Three Gorges Units.

The choice between voltage and current excitation is generally at the discretion of the designer.

Both in the normal and broken-down situation, the excitation control systems of generator play a very important role.

Trabeculae from the right ventricle of mice were dissected for assessment of changes in excitation-contraction coupling.

The realization of calibration accelerometer system with random vibration excitation is introduced in this paper.

The calculations show that excitation collision has quite small contribution to the whole collision processes.

The measuring device electronics delivers an excitation current driving the exciter arrangement.

The outcome has already reached can apply to excitation losing online detecting and high performance control of electric engines.

The excitation source's performance is analyzed by acquisition and processing the localization signal in animal right atrium.

Proper program of excitation control is important in the improvement of the disturbance stability in power system.

Both ionization and excitation lead to electronic transitions that may be the emission of light.

After the excitation scheme of suitable ultraviolet material is selected, the ultraviolet spectrum is measured with the dual.

The dependence of the excitation energies of low-lying excited states on the diameters and helicity of CNT is studied.

And then two wind power system models have been built up. One takes on excitation and governing system, and the other takes none.

The high resistance of the completion resistors helps minimize the current draw from the excitation voltage.

that the proposed excitation control strategy can enhance transient stability of power system.

The structure, emission spectrum and excitation spectrum of the phosphor were measured.

The main vibration sources of combine come from four aspects: engine, header, conveying and separation divice, road random excitation.

Combined with the pore water pressure model, soil liquefaction under the seismic excitation can be modeled.

Double microcomputer excitation regulation device of DWLZ synchronous electric generator and synchronous electric motor.

Methods and apparatus for quickly selecting an optimal excitation waveform from a codebook are presented herein.

Simulation results show that the proposed ANN excitation regulator can significantly stabilized termined voltage.

The supplementary controls to the excitation system constitute the power system stabilizer.

This paper also introduced the constitution loss of excitation protection, the exportation logic as well as the disposition plan.

An iterative excitation signal design method is proposed to select an optimal signal for closed-loop system identification.

The trigger is used for generating excitation pulse for the thyratron to ignite.

In particular, the relationship of the second-harmonic generation to the excitation wavelength is measured.

Forced excitation index of generator exciting system is the important factor to affect transient stability.

Selecting the appropriate excitation frequency can well inhibit the conversion mode amplitude.

While a vehicle decelerates, the peaks in MES basically decrease continuously and can reflect the abrupt excitation of ground.

Design cars, the natural frequencies should be staggered so that the excitation frequency to avoid resonance and noise.

Here a bipolar method was presented using biphasic rectangular pulses to achieve selective excitation of nerve fibers.

Excitation equivalence in ground vibration test with respect to real flight vibration environment is studied.

Using our series codes, quasi-stable Ni-like Ag collisional excitation scheme driven by laser with grazing incidence was studied.

The regulated mechanism of nitrogen on the trans-conductance and distribution of excitation energy were revealed.

The cloud model is fist applied to the excitation control and fast valve control of power system.

Using the theory of linear system, it analyzes the vibration response of grinding wheel spindle system under unbalancing excitation.

In addition, dynamic responses of the system in sine voltage excitation were discussed.

Meanwhile, a slight AC component was added to excitation current to decoupling speed estimation and rotor resistance.

The continuously acting automatic excitation system to control a generating unit terminal voltage.

By changing excitation laser, we study the influence of interference with dual-channel on the angular distributions.

Current detection subsystem has been calibrated by excitation permanent current imposed separately.

In this paper, excitation effects of alkali, gypsum, lime and temperature on the pozzolanic activity of fly ash were researched.

The store separated from the wing is treated as piecewise linear oscillator with clearance under harmonic excitation.

This algorithm consists of three main modules: the feature extraction, the extension of spectrum and the extension of excitation.

Find the excitation source for happiness, is the golden key to developing effective financial planning.

The identification principle of simple harmonic excitation method is illustrated.

The model experiment on the motion behavior of caisson breakwaters is conducted under breaking wave excitation.

The scale and periodicity of the shear-layer vortices are modulated with acoustic excitation.

For synchronous switching, it provides the logic control signals for switching the excitation voltage.

Objective: To investigate the influence of excitation temperature and electron density in ICP for HCl and HAc solvents.

The discussion includes the benefits and shortcomings of ac and dc excitation techniques using current and voltage.

The accurate description of track model and excitation model is the key of the Medium-low rate speech coding.

Modern excitation system plays an important role in improving the reliability of generator and stability of power system.

This paper focuses on achievement of the protection unit and excitation regulation unit.

Generally, an excitation device is dynamically tested at site after completed with factory static testing.

Vertical random vibration of motorcycle subjected to irregular road excitation was studied.

This study presents an inverse method to estimate the excitation forces from the dynamic responses of plate structures.

And the excitation voltage and output were also fed through the selector switch to the digital voltmeter.

By the classic way of OVA Sensitization and excitation to establish the models.

The DC excitation is internally converted to an AC carrier signal which excites the transducer's primary coil.

The regular pattern of influence on impact spectra by amplitude of pulse excitation and system damping was discussed.

In addition, a vibration excitation test was done for the whole lathe to verify the exactness of the parameters obtained from simulation.

Then they are in a state of excitation.

Hidden is produced to input, namely excitation response with radial basis function of input into play.

Furthermore, the cost of excitation regulator is not high, in the power system and stability of the economy can not be neglected.

The solutions of frequency measurement and trigger signal forming of excitation system are proposed.

After coming back from the Britain , his interest tuned to the study of excitation - contraction coupling of skeletal muscle .

This product adopts the technology of duplicate excitation, the magnet track is deep, so the adsorbent power is strong.

the method of the open circuit examination excitation compensation windings was given.

Therefore, the control design study for STATCOM and power system excitation has great significance.

In the past, air WAS the common cooling medium for components of most excitation systems.

Uninhibited neuronal excitation would lead to a constant state of seizure something like what is seen, episodically, in epilepsy.

Application and Study on Self-Excited Excitation System in Large Turbine Generators . . .

The restrictive effect of auxiliary power voltage and the safety measures of under-excitation operation are also included.

At last, the dynamic response characteristic in time domain of the EMS on the frequency of the excitation force is given.

The different excitation sources are pulsed to give intermittent radiation .

Further agreement with panel frequencies was taken to indicate a mechanism of acoustic mode excitation.

Results: The excitation temperature and electron density decreased when the concentration of HCl and HAc increased.

There usually exsits a strong foci of excitation in our mind while facing the psychological troubles.

A total solution of interventional excitation controller including software and hardware is also available in this paper.

Especially, it reflects innovation and thought on hotel core staff excitation mechanism.

Faults of power unit of generator excitation system have great influence on stable operation of generator.

The region of attraction (RA) of power system is estimated with saturation element of excitation system.

HuLi mutual excitation of the dual role, two different patterns of girls' school caused.

Objective Explore the mechanism of intermittent pre-excitation syndrome(IPS).

The different effects between of uniform excitation and traveling wave to the bridge are compared.

the initial step in photosynthesis is the excitation of an electron by light.

Figure 6. Error sources associated with dc- excitation in a bridge transducer measurement system.

The effect of hydrodynamics pressure acting on the aqueduct wall due to external excitation is significant.

The feasible arithmetic is given and the characteristic waveforms of heart excitation source is obtained.

The nonlinear dynamical equations of inclined support spring system were obtained under the excitation of rectangular pulse.

An optimization programming technique is used to get the gain settings of the excitation controller.

Excitation radiation may do this by penetrating to the cathode and ejecting a photoelectron .

The combustion excitation for this more general case comes from more than one source.

State-dependent measurements have shown that the reaction probability is enhanced by vibrational excitation of CH(4).

Excitation of one's own OR another's genital ORgans, usually to ORgasm, by manual contact OR means other than sexual intercourse.

This paper is based on the differential geometry, researching on the nonlinear excitation control of the synchronous generator.

analyzed the mechanism of fluid voices and excitation source; deduced the wave equation of fluid voices.

Synchronous generator's excitation system is playing an important part in terms of improving the stability and safety of the power system.

The excitation and emission spectra of the sol-gel glasses were measured and analyzed.

An excitation device is operable in the open position of the valve member to ultrasonically excite the ultrasonic waveguide.

The formulae are applicable to stationary Gaussian random excitation.

the symptoms are marked , do you see ? - sleep broken by nervous spasms , excitation of the brain , torpor of the nerve centres.

The signals from a bridge transducer, which depend on the excitation, are typically small.

Self-excitation and Global Inhibition. Decision-making. The MAX Operation.

The use of Lorentz transformation, derived point charge excitation electromagnetic field.

The situation of home manufacture of brushless excitation system is introduced essentially in this paper.

I don't appreciate the method of to promoting the enthusiasm of workers by material excitation utilized at present.

Under the excitation of UV light, Eu and Tb complexes exhibit characteristic emission of corresponding lanthanide ions.

The Problems in Design and Application of Self Shunt Static Excitation System in Generators.

The effects of layouts, sparse rate and the excitation to the pattern of thinned array are analyzed in detail.

Simulation result shows that model quality by closed-loop identification is improved by using the excitation signal optimal method proposed.

Special kind of light filter that can separate the excitation light from the fluorescence.

And the distribution of the contact pressure on the pile-soil interface is related to the excitation magnitude.

At room temperature, thermal excitation can produce an unwanted current.

Viruses are susceptible to the same kind of mechanical excitation.

The inventors called their idea Silex, for separation of isotopes by laser excitation.

The excitation control is combined with fixed capacities in the 12 phase link and a converter in the 3 phase link.

An adaptive fuzzy PID controller based on variable universe is applied to the excitation system of synchronous generator.

Therefore it is useful to get the performance of excitation systems with the real-time simulation of the synchronous generator.

Compare excitation is more to other measure focus on improve stability of power system, inexpensive and more easily to carry out.

In the end, Game model of real estate sales agents is presented and analyzed, and the necessity of excitation mechanism is demonstrated.

Based on the FEA model, an optimized control strategy is proposed to improve the performance of the SRM under two-phase excitation.

A new emission band of HA in sieves is observed at long wavelength side under strong pulse laser excitation.

The knowledge employees play the leading roles in hospitals, whose excitation mechanisms are distinctive and profound.

Self-control and self-excitation ability is strong, pay attention to group cooperative soul, glad to meet the new challenge.

rotating electrical machines . part 16 : excitation systems for synchronous machines . chapter 1 : definitions.

The source of vibration excitation is divided into two components: the axle load and the roughness-induced dynamic loads.

Moreover, multi-dimensional earthquake excitation is more serious case for curved box girder bridge.

It is well-known that calcium plays an important role in excitation-contraction coupling in cardiac myocytes.

There are two major factors in selecting an excitation source that will enhance overall system performance.