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Signatures

Signature Recognition of Acoustic Emission from FRP Structures. [Pg.37]

A resonance in the layered stracture occurs when echoes between two boundaries travel back and forth due to differences in acoustic impedances at the boundaries. For multi-layer structures a number of resonances can be observed depending on their geometry and condition. For each particular defect-free structure and given transducer we obtain a characteristic resonance pattern, an ultrasonic signature, which can be used as a reference. [Pg.108]

In service inspections of French nuclear Pressure Water Reactor (PWR) vessels are carried out automatically in complete immersion from the inside by means of ultrasonic focused probes working in the pulse echo mode. Concern has been expressed about the capabilities of performing non destructive evaluation of the Outer Surface Defects (OSD), i.e. defects located in the vicinity of the outer surface of the inspected components. OSD are insonified by both a "direct" field that passes through the inner surface (water/steel) of the component containing the defect and a "secondary" field reflected from the outer surface. Consequently, the Bscan images, containing the signatures of such defects, are complicated and their interpretation is a difficult task. [Pg.171]

Figure 3. Experimental Bscan image eontaining the signature of a planar OSD. Figure 3. Experimental Bscan image eontaining the signature of a planar OSD.
Progress in mean of modelisation and inverse problem solving [1] let us hope to dispose soon of these tools for flaws 3D imaging in Non Destructive Control with eddy current sensors. This will achieve a real improvement of the actual methods, mainly based upon signature analysis. But the actual eddy current probes used for steam generators tubes inspection in nuclear industry do not produce the adequate measurements and/or are not modelisable. [Pg.357]

A signature of the dynamical scaling is evidenced by the collapse of the experimental data to a scaled fonn, for a (i-dimensional system ... [Pg.734]

Weber S, Ohmes E, Thurnauer M C, Norris J R and Kothe G 1995 Light-generated nuclear quantum beats a signature of photosynthesis Proc. Natl Acad. Sc/. USA 92 7789-93... [Pg.1588]

In the microcanonical ensemble, the signature of a first-order phase transition is the appearance of a van der Waals loop m the equation of state, now written as T(E) or P( ). The P( ) curve switches over from one... [Pg.2267]

It is usually not efficient to use the methods described above to refine the transition state to full accuracy. Starting from a qualitatively correct region on the potential surface, in particular one where the Hessian has the right signature, efficient gradient optimization teclmiques, with minor modifications, are usually able to zero in on the transition state quickly. [Pg.2351]

Experimentally, local vibrational modes associated witli a defect or impurity may appear in infra-red absorjrtion or Raman spectra. The defect centre may also give rise to new photoluminescence bands and otlier experimentally observable signature. Some defect-related energy levels may be visible by deep-level transient spectroscopy (DLTS) [23]. [Pg.2884]

In addition to tire period-doubling route to chaos tliere are otlier routes tliat are chemically important mixed-mode oscillations (MMOs), intennittency and quasi-periodicity. Their signature is easily recognized in chemical experiments, so tliat tliey were seen early in the history of chemical chaos. [Pg.3063]

Analysis of Surface Molecular Composition. Information about the molecular composition of the surface or interface may also be of interest. A variety of methods for elucidating the nature of the molecules that exist on a surface or within an interface exist. Techniques based on vibrational spectroscopy of molecules are the most common and include the electron-based method of high resolution electron energy loss spectroscopy (hreels), and the optical methods of ftir and Raman spectroscopy. These tools are tremendously powerful methods of analysis because not only does a molecule possess vibrational modes which are signatures of that molecule, but the energies of molecular vibrations are extremely sensitive to the chemical environment in which a molecule is found. Thus, these methods direcdy provide information about the chemistry of the surface or interface through the vibrations of molecules contained on the surface or within the interface. [Pg.285]


See other pages where Signatures is mentioned: [Pg.88]    [Pg.50]    [Pg.37]    [Pg.38]    [Pg.38]    [Pg.39]    [Pg.41]    [Pg.41]    [Pg.44]    [Pg.163]    [Pg.172]    [Pg.176]    [Pg.361]    [Pg.852]    [Pg.877]    [Pg.912]    [Pg.913]    [Pg.1712]    [Pg.1781]    [Pg.2127]    [Pg.2336]    [Pg.2341]    [Pg.2346]    [Pg.2349]    [Pg.2352]    [Pg.2354]    [Pg.2439]    [Pg.2448]    [Pg.2534]    [Pg.2843]    [Pg.3007]    [Pg.3011]    [Pg.3060]    [Pg.44]    [Pg.191]    [Pg.303]    [Pg.2]    [Pg.293]   
See also in sourсe #XX -- [ Pg.317 ]

See also in sourсe #XX -- [ Pg.149 ]

See also in sourсe #XX -- [ Pg.317 ]

See also in sourсe #XX -- [ Pg.730 , Pg.737 ]

See also in sourсe #XX -- [ Pg.317 ]

See also in sourсe #XX -- [ Pg.149 ]

See also in sourсe #XX -- [ Pg.185 , Pg.186 ]

See also in sourсe #XX -- [ Pg.25 , Pg.167 ]

See also in sourсe #XX -- [ Pg.268 , Pg.269 , Pg.274 ]




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A Variant Invisible Signatures

Acceptable signature

Acoustic signature

All-mode structural fault signature matrix

Analyte signature pattern

Ap Signatures

Atomic signatures

Baseline signature

Behavior signature

Behavioral signature

Binding site signatures

Biological response signatures

Biometric signatures

Biosynthetic signatures

Bipolaron signature

Blank signature

Blind signature

Carbon emissions signature

Carbon isotope signatures

Carbon isotopic signature

Chaos, signatures

Chemical signatures

Component fault signature

Computer electronic signature

Conclusion the Rydberg signature and its implications

Conventional Definitions of Fail-Stop Signature Schemes and General Reductions

Correct signature

Detecting The Optical Signature

Diagnostic signatures

Diagnostic signatures clinically useful

Diagnostic signatures protein

Digital signature scheme

Digital signatures

Disturbance signature

Doctrine of Signatures

Dual invisible signature scheme

E-signature

Electronic Signatures in Global

Electronic Signatures in Global and National Commerce

Electronic records and signatures

Electronic records/signatures

Electronic records/signatures Drug Administration

Electronic records/signatures acceptance

Electronic records/signatures definition

Electronic records/signatures practical implications

Electronic records/signatures security

Electronic signature

Electronic signatures applicability

Electronic signatures regulations

Example of interface events and entities if an ordinary digital signature scheme is modeled

Existing fail-stop signature schemes, classified according to risk bearers

Experimental signatures of tunneling

Fail signature scheme

Fail-Stop Signature Schemes

Fail-Stop Signature Schemes with Prekey

Fail-stop signature scheme with bottom-up tree authentication

Fail-stop signature scheme with top-down tree authentication

Fault signature

Fault signature matrix

Field Signature Method

Field Signature Method (Electric Fingerprint)

Fingerprint signature

Full fail-stop signature scheme

Gene "signature

Gene expression signatures

Gene expression signatures classification

Gene expression signatures identification

Gene expression signatures liver

Geological processes and their geochemical signatures

Geometric signature waveform

Group signature

Handwritten signature

History of Digital Signature Schemes

IM Signature Summary

Incremental signature

Instrument signature

Internet signatures

Invention of Digital Signature Schemes

Invisible Signature Schemes with Dual Security

Invisible signature

Isotopic signature, of carbon

Landmine signature chemicals

Legal Significance of Signatures

Length of Signatures and Public Keys

List of signatures

Lower Bounds on Information-Theoretically Secure Signature Schemes

Massively parallel signature sequencing

Matrix signature

Metal vibrational signature

Molecular signature

Neon isotopes solar signature

New Signatures

Normal Signature Schemes with Dual Security

One New Type Fail-Stop Signature Schemes

One-time signature

Ordinary digital signature scheme

PRACTICAL IMPLICATIONS OF ELECTRONIC SIGNATURES AND RECORDS

Particle signature

Passwords, electronic signatures

Permutation signature

Pheromone signature mixtures

Polar signature

Possible and correct invisible signatures in existing schemes

Powder signature

Prescriber signature

Printing signature

Procedures signatures

Process signature

Proteins signatures

Quantification using Signature Hydrolytic Peptides

Quantum signatures of chaos

Reflectivity signature

Relativistic signature

Remnant molecular signature

Requirements on Digital Signature Schemes

Secure standard fail-stop signature scheme

Shape signature

Signature Generality

Signature Materials

Signature Place

Signature analysis

Signature authority

Signature domain

Signature equation

Signature function, definition

Signature lipid biomarkers

Signature mixture

Signature molecular similarity methods

Signature motif

Signature odors

Signature of Hydrophobicity Its Temperature Dependence

Signature of Quality

Signature of a critical point

Signature patterns

Signature peak

Signature peptide approach

Signature policy

Signature respective source

Signature scheme

Signature screening

Signature sequences

Signature similarity

Signature splitting

Signature theme

Signature workflow

Signature, declarations/statements made upon

Signature-Based Molecular Design

Signature-Related Schemes

Signatures and Approvals

Signatures of Dust Around Stars

Signatures, doctrine

Signatures, superfruit

Signatures, time

Signatures, volatile organic compounds

Smoke signature

Special Signature Schemes

Spectral Signatures of Ultrafast ESIPT

Spectral signatures

Spectroscopic signature

Standard fail-stop signature scheme

Standard ordinary digital signature scheme

Statistical signatures

Switching signature

Threshold signature

Till indicator mineral and geochemical signatures of magmatic Ni-Cu deposits, Thompson Nickel Belt, central Canada

Time, Formation Probability and Signatures of SBNs

Topological Signature of Dislocations

Ultrafast Transient Absorption Signatures of ESIPT

Undeniable signature

Vapor signature

Vibrational signature

Water Signatures in Protostars

Water Signatures in Spectra of Late Type Stars and the Sun

Water spectral signatures

Water spectroscopic signatures

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