## What is/are Resonance Vibration?

Resonance Vibration - The three examples which presented drillstring and BHA twist-offs were analyzed using available BHA Dynamics and vibrations software and it was discovered that the parameters utilized (operational RPM) fell within the critical zone shearing force peaks (resonance vibrations).^{[1]}The sand layer obtained a good improvement effect after resonance vibration, especially in the middle-lower sand deposit.

^{[2]}The problem of determining the fatigue life of blades with defects operating under resonance vibrations is one of the original tasks in the field of fracture mechanics and experimental mechanics.

^{[3]}The population aggregation effect takes place in the near-resonance vibrational states and the population accumulation effect appears in the off-resonance vibrational states.

^{[4]}Our focus lies on the local liquid pressure caused by resonance vibration in the fluid contained by the reactor’s petri dish.

^{[5]}The problem of determining the fatigue life of blades with defects operating under resonance vibrations is one of the original tasks in the field of fracture mechanics and experimental mechanics.

^{[6]}The luminescence is excited in intrinsic absorption bands of the Eu3+ ions and as a result of resonance vibrational energy transfer from the host to their excited state levels and transitions of O2– 2p electrons to the europium 4f orbital.

^{[7]}It is found the nonlinear excitation of powerful non-resonance vibrations which take place also in the case of large elastic dissipation.

^{[8]}The resonance vibration of the wheelset elastic modal can cause the dynamic stress on key positions of the axle increase sharply.

^{[9]}The resonance vibrations of the dynamic system on the main mode are investigated.

^{[10]}Electrostatic MEMS coriolis vibratory gyroscopes (CVG) are essentially nonlinear because of the capacitive transducers employed for the excitation and detection of resonance vibration.

^{[11]}Two-inertia systems are prone to resonance vibrations that degrade their control performances.

^{[12]}To assess the danger of resonance vibrations, the calculations data of the critical rotational speeds and strength in case of a sudden short circuit in the generator of the shaft line of the upgraded K-220-44-1 turbine unit have been presented.

^{[13]}Measured with a commercial PEH device (Mide PPA-1022) at 85- and 60-Hz vibration frequency, the proposed circuit shows 512% and 541% power extraction improvement [figure of merit (FoM)] compared with an ideal full-bridge rectifier (FBR) for ON-resonance and OFF-resonance vibrations, respectively, while maintaining high efficiency across different input levels and PEH parameters.

^{[14]}For the case which is easy to cause a high frequent vortex vibration, the swept blades also show a good performance to decrease the dominant frequency and amplitude of the load fluctuation, which is helpful to avoid damages caused by the resonance vibration.

^{[15]}Here, we report a cell patterning method that can be conducted on a general cell culture dish without any inclusions by employing a resonance vibration of a disk-shaped ultrasonic transducer located under the dish.

^{[16]}We have developed an effective detachment method using resonance vibrations (RVs) of substrates with sweeping driving frequency.

^{[17]}The resonance vibrations by generating stress waves (called as impact echo) are used to identify the internal horizontal crack and its delamination.

^{[18]}In this work, we explore the possibilities of passive damping the resonance vibrations of a cantilevered duralumin plate located on the free surface of a quiescent fluid.

^{[19]}Through theoretical analysis of this model, damping coefficient is found to be the key factor in determining the amplitude of resonance vibration and the attenuation rate of residual vibration.

^{[20]}Furthermore, vibrational cues, such as the resonance vibrations induced by gnawing, are of major importance for nesting and foraging decisions.

^{[21]}

## density functional theory

In this study, we combine 57Fe nuclear resonance vibrational spectroscopy with density functional theory calculations to understand the novel properties of this important protein.^{[1]}This procedure proved beneficial for 57Fe nuclear resonance vibrational spectroscopy and revealed, in combination with density functional theory calculations, the vibrational fingerprint of this catalytic intermediate.

^{[2]}Here, we use a combination of isotopic labeling, 57Fe nuclear resonance vibrational spectroscopy (NRVS), and density functional theory (DFT) calculations to observe and characterize the vibrational modes involving motion of the 2-azapropane-1,3-dithiolate (ADT) ligand bridging the two iron sites in the [2Fe]H subcluster.

^{[3]}

## Nuclear Resonance Vibration

In this study, we employ nuclear resonance vibrational spectroscopy (NRVS) to probe the geometric and electronic structure of intermediate Q at cryogenic temperatures.^{[1]}To obtain the required vibrational data, we have collected Nuclear Resonance Vibrational Spectroscopy (NRVS) data for APX-II.

^{[2]}In this study, we combine 57Fe nuclear resonance vibrational spectroscopy with density functional theory calculations to understand the novel properties of this important protein.

^{[3]}In this study, using tryptophan hydroxylase, we have kinetically generated a pre-FeIV = O intermediate and characterized its structure as a FeII-peroxy-pterin species using absorption, Mössbauer, resonance Raman, and nuclear resonance vibrational spectroscopies.

^{[4]}This procedure proved beneficial for 57Fe nuclear resonance vibrational spectroscopy and revealed, in combination with density functional theory calculations, the vibrational fingerprint of this catalytic intermediate.

^{[5]}Here, we use a combination of isotopic labeling, 57Fe nuclear resonance vibrational spectroscopy (NRVS), and density functional theory (DFT) calculations to observe and characterize the vibrational modes involving motion of the 2-azapropane-1,3-dithiolate (ADT) ligand bridging the two iron sites in the [2Fe]H subcluster.

^{[6]}We combined 57Fe-specific X-ray nuclear resonance scattering experiments (NFS, nuclear forward scattering; NRVS, nuclear resonance vibrational spectroscopy) with quantum-mechanics/molecular-mechanics computations to study the [FeFe]-hydrogenase HYDA1 from a green alga.

^{[7]}Using low-temperature IR spectroscopy and nuclear resonance vibrational spectroscopy, together with density functional theory calculations, we show that the bridging CO is retained in the HsredH+ and HredH+ states in the [FeFe] hydrogenases from Chlamydomonas reinhardtii and Desulfovibrio desulfuricans, respectively.

^{[8]}57Fe-specific X-ray scattering techniques were employed to collect nuclear forward scattering (NFS) and nuclear resonance vibrational spectroscopy (NRVS) data of the R2lox proteins.

^{[9]}Then, we focus on using Nuclear Resonance Vibrational Spectroscopy (NRVS, performed at SPring-8) to define geometric structure and VTVH MCD to define the electronic structure of the FeIII-OOH and FeIV=O intermediates generated in O2 activation and the spin state dependence of their frontier molecular orbitals (FMOs) in controlling reactivity.

^{[10]}

## Forced Resonance Vibration

In this paper, the forced resonance vibration analysis of curved micro-size beams made of graphene nanoplatelets (GNPs) reinforced polymer composites is presented.^{[1]}For the first time, forced resonance vibration of Graphene Nano-Platelets (GNPs) reinforced Functionally Graded Polymer Composite (FG-PC) nanoplates is studied.

^{[2]}

## Nonlinear Resonance Vibration

A nonlinear resonance vibration method is adopted in samples having an identical air void content.^{[1]}Among the previous studies to investigate the effects of post-heating curing, the nonlinear resonance vibration method was recently proposed to evaluate contact-type defects of concrete induced by high temperature although the use of physicochemical analysis is not reported to investigate the rehydration products of concrete on post-damage curing conditions.

^{[2]}

## Induced Resonance Vibration

Molecular dynamics simulations further revealed that MIRS-induced resonance vibration of –C=O bonds at the K+ channel ion selectivity filter contributes to the K+ current increase.^{[1]}We then investigated if pollen release was caused by wind-induced resonance vibration of stamens.

^{[2]}

## Primary Resonance Vibration

The results show that the combined control strategy can not only improve the ride comfort of the vehicle, but also effectively suppress the primary resonance vibration amplitude of suspension system.^{[1]}This paper studies the exact nonlinear dynamics of a simply-supported beam carrying a nonlinear spring-inerter-damper energy absorber for primary resonance vibration reduction.

^{[2]}

## resonance vibration machine

The above resonance vibration machines are widely used in various industries, but have a number of shortcomings associated with increasing of the oscillations amplitude when passing the resonance zone during start-up.^{[1]}Resonant and out-of-resonance vibration machines are investigated operating under conditions of non-stationary loads and the influence of variable parameters of treated bulk material.

^{[2]}The article deals with a continual segment of an inter-resonance vibration machine.

^{[3]}The features of the start-up of the electric drive of an above resonance vibration machine were considered.

^{[4]}

## resonance vibration amplitude

The results show that the combined control strategy can not only improve the ride comfort of the vehicle, but also effectively suppress the primary resonance vibration amplitude of suspension system.^{[1]}The MMD will be installed in the hollow spaces, and reduces the resonance vibration amplitude of the most significant mode.

^{[2]}A comparison of three sensitivity characterization methods was carried out: resonance frequency shift, amplitude change and resonance vibration amplitude ratio.

^{[3]}

## resonance vibration mode

The work is devoted to the problem of ensuring the near-resonance vibration modes stability of the technological vibromachines at fluctuating mass of processed material.^{[1]}The results show that the nonlinearity of the reported EMM system changes the coherent resonance vibration mode from single to double under a harmonic base excitation within the frequency range of 20 Hz–50 Hz.

^{[2]}By selective excitation of the second or third resonance vibration modes of the stator, the slider can be driven bidirectionally.

^{[3]}

## resonance vibration method

A nonlinear resonance vibration method is adopted in samples having an identical air void content.^{[1]}Among the previous studies to investigate the effects of post-heating curing, the nonlinear resonance vibration method was recently proposed to evaluate contact-type defects of concrete induced by high temperature although the use of physicochemical analysis is not reported to investigate the rehydration products of concrete on post-damage curing conditions.

^{[2]}