메뉴 건너뛰기




Volumn 127, Issue 6, 2010, Pages 3440-3448

The scattering of the fundamental torsional mode from axi-symmetric defects with varying depth profile in pipes

Author keywords

[No Author keywords available]

Indexed keywords

AVERAGE LENGTH; AXISYMMETRIC; COMPLEX PROFILES; DEFECT LENGTH; DEFECT SIZING; DEPTH PROFILE; EXPERIMENTAL VALIDATIONS; FINITE ELEMENT MODELING; FREQUENCY DEPENDENCE; GUIDED ULTRASONIC WAVES; IN-PIPE; REFLECTION COEFFICIENTS; TORSIONAL MODES;

EID: 77953559722     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.3373406     Document Type: Article
Times cited : (93)

References (46)
  • 1
    • 0026869904 scopus 로고
    • The interaction of lamb waves with defects
    • ITUCER 0885-3010,. 10.1109/58.143172
    • D. N. Alleyne and P. Cawley, " The interaction of lamb waves with defects.," IEEE Trans. Ultrason. Ferroelectr. Freq. Control ITUCER 0885-3010 39, 381-397 (1992). 10.1109/58.143172
    • (1992) IEEE Trans. Ultrason. Ferroelectr. Freq. Control , vol.39 , pp. 381-397
    • Alleyne, D.N.1    Cawley, P.2
  • 2
    • 0029974566 scopus 로고    scopus 로고
    • A boundary element solution for a mode conversion study on the edge reflection of Lamb waves
    • DOI 10.1121/1.415396
    • Y. Cho, " A boundary element solution for a mode conversion study on the edge reflection of lamb waves.," J. Acoust. Soc. Am. JASMAN 0001-4966 99, 2097-2109 (1996). 10.1121/1.415396 (Pubitemid 26123217)
    • (1996) Journal of the Acoustical Society of America , vol.99 , Issue.4 , pp. 2097-2109
    • Cho, Y.1    Rose, J.L.2
  • 3
    • 0030781871 scopus 로고    scopus 로고
    • Lamb wave scattering analysis for reflector characterization
    • ITUCER 0885-3010,. 10.1109/58.585189
    • Y. Cho, D. D. Hongchrholt, and J. L. Rose, " Lamb wave scattering analysis for reflector characterization.," IEEE Trans. Ultrason. Ferroelectr. Freq. Control ITUCER 0885-3010 44, 44-52 (1997). 10.1109/58.585189
    • (1997) IEEE Trans. Ultrason. Ferroelectr. Freq. Control , vol.44 , pp. 44-52
    • Cho, Y.1    Hongchrholt, D.D.2    Rose, J.L.3
  • 4
    • 0036566260 scopus 로고    scopus 로고
    • Multiple reflections of Lamb waves at a delamination
    • DOI 10.1016/S0041-624X(02)00136-1, PII S0041624X02001361
    • T. Hayashi and K. Kawashima, " Multiple reflections of lamb waves at a delamination.," Ultrasonics ULTRA3 0041-624X 40, 193-197 (2002). 10.1016/S0041-624X(02)00136-1 (Pubitemid 34545304)
    • (2002) Ultrasonics , vol.40 , Issue.1-8 , pp. 193-197
    • Hayashi, T.1    Kawashima, K.2
  • 5
    • 0021156602 scopus 로고
    • Finite-element analysis of lamb wave scattering in an elastic plate waveguide
    • IESUAU 0018-9537
    • M. Koshiba, S. Karakida, and M. Suzuki, " Finite-element analysis of lamb wave scattering in an elastic plate waveguide.," IEEE Trans. Sonics Ultrason. IESUAU 0018-9537 31, 18-24 (1984).
    • (1984) IEEE Trans. Sonics Ultrason. , vol.31 , pp. 18-24
    • Koshiba, M.1    Karakida, S.2    Suzuki, M.3
  • 6
    • 0036565929 scopus 로고    scopus 로고
    • 0 Lamb mode with vertical cracks in an aluminium plate
    • DOI 10.1016/S0041-624X(02)00135-X, PII S0041624X0200135X
    • 0 lamb mode with vertical cracks in an aluminium plate.," Ultrasonics ULTRA3 0041-624X 40, 187-192 (2002). 10.1016/S0041-624X(02)00135-X (Pubitemid 34545303)
    • (2002) Ultrasonics , vol.40 , Issue.1-8 , pp. 187-192
    • Le Clezio, E.1    Castaings, M.2    Hosten, B.3
  • 7
    • 0019003227 scopus 로고
    • Diffraction of lamb waves by a finite crack in an elastic layer
    • JASMAN 0001-4966,. 10.1121/1.384175
    • S. Rokhlin, " Diffraction of lamb waves by a finite crack in an elastic layer.," J. Acoust. Soc. Am. JASMAN 0001-4966 67, 1157-1165 (1980). 10.1121/1.384175
    • (1980) J. Acoust. Soc. Am. , vol.67 , pp. 1157-1165
    • Rokhlin, S.1
  • 8
    • 0019552764 scopus 로고
    • Resonance phenomena of lamb waves scattering by a finite crack in a solid layer
    • JASMAN 0001-4966,. 10.1121/1.385614
    • S. I. Rokhlin, " Resonance phenomena of lamb waves scattering by a finite crack in a solid layer.," J. Acoust. Soc. Am. JASMAN 0001-4966 69, 922-928 (1981). 10.1121/1.385614
    • (1981) J. Acoust. Soc. Am. , vol.69 , pp. 922-928
    • Rokhlin, S.I.1
  • 9
    • 0012229181 scopus 로고    scopus 로고
    • o Lamb mode from a circular through-thickness hole in a plate: Finite element, analytical and experimental studies
    • DOI 10.1121/1.1512292
    • 0 lamb mode from a circular through-thickness hole in a plate: Finite element, analytical and experimental studies.," J. Acoust. Soc. Am. JASMAN 0001-4966 112, 2589-2601 (2002). 10.1121/1.1512292 (Pubitemid 37033836)
    • (2002) Journal of the Acoustical Society of America , vol.112 , Issue.6 , pp. 2589-2601
    • Diligent, O.1    Grahn, T.2    Bostrom, A.3    Cawley, P.4    Lowe, M.J.S.5
  • 10
    • 0037211768 scopus 로고    scopus 로고
    • Lamb wave scattering from a circular partly through-thickness hole in a plate
    • DOI 10.1016/S0165-2125(02)00051-3, PII S0165212502000513
    • T. Grahn, " Lamb wave scattering from a circular partly through-thickness hole in a plate.," Wave Motion WAMOD9 0165-2125 37, 63-80 (2003). 10.1016/S0165-2125(02)00051-3 (Pubitemid 35431902)
    • (2003) Wave Motion , vol.37 , Issue.1 , pp. 63-80
    • Grahn, T.1
  • 12
    • 0020128695 scopus 로고
    • Nondestructive evaluation of planar defects in plates using low-frequency shear horizontal waves
    • DOI 10.1063/1.331163
    • C. M. Fortunko and R. B. King, " Nondestructive evaluation of planar defects in plates using low-frequency shear horizontal waves.," J. Appl. Phys. JAPIAU 0021-8979 53, 3450-3458 (1982). 10.1063/1.331163 (Pubitemid 12525384)
    • (1982) Journal of Applied Physics , vol.53 , Issue.5 , pp. 3450-3458
    • Fortunko, C.M.1    King, R.B.2    Tan, M.3
  • 13
    • 0037380009 scopus 로고    scopus 로고
    • Scattering of the fundamental shear horizontal mode from steps and notches in plates
    • DOI 10.1121/1.1554694
    • A. Demma, P. Cawley, and M. J. S. Lowe, " Scattering of the fundamental shear horizontal mode from steps and notches in plates.," J. Acoust. Soc. Am. JASMAN 0001-4966 113, 1880-1891 (2003). 10.1121/1.1554694 (Pubitemid 36389928)
    • (2003) Journal of the Acoustical Society of America , vol.113 , Issue.4 , pp. 1880-1891
    • Demma, A.1    Cawley, P.2    Lowe, M.3
  • 14
    • 35248849921 scopus 로고    scopus 로고
    • Short range scattering of the fundamental shear horizontal guided wave mode normally incident at a through-thickness crack in an isotropic plate
    • DOI 10.1121/1.2764472
    • P. Rajagopal and M. J. S. Lowe, " Short range scattering of the fundamental shear horizontal guided wave mode normally incident at a through-thickness crack in an isotropic plate.," J. Acoust. Soc. Am. JASMAN 0001-4966 122, 1527-1538 (2007). 10.1121/1.2764472 (Pubitemid 47565522)
    • (2007) Journal of the Acoustical Society of America , vol.122 , Issue.3 , pp. 1527-1538
    • Rajagopal, P.1    Lowe, M.J.S.2
  • 15
    • 0038578339 scopus 로고    scopus 로고
    • Boundary element modeling for defect characterization potential in a wave guide
    • DOI 10.1016/S0020-7683(03)00097-0
    • X. G. Zhao and J. L. Rose, " Boundary element modeling for defect characterization potential in a wave guide.," Int. J. Solids Struct. IJSOAD 0020-7683 40, 2645-2658 (2003). 10.1016/S0020-7683(03)00097-0 (Pubitemid 36615185)
    • (2003) International Journal of Solids and Structures , vol.40 , Issue.11 , pp. 2645-2658
    • Zhao, X.G.1    Rose, J.L.2
  • 16
    • 0023385304 scopus 로고
    • Finite-element solution of horizontally polarized shear wave scattering in an elastic plate
    • ITUCER 0885-3010,. 10.1109/T-UFFC.1987.26967
    • M. Koshiba, K. Hasegawa, and M. Suzuki, " Finite-element solution of horizontally polarized shear wave scattering in an elastic plate.," IEEE Trans. Ultrason. Ferroelectr. Freq. Control ITUCER 0885-3010 34, 461-466 (1987). 10.1109/T-UFFC.1987.26967
    • (1987) IEEE Trans. Ultrason. Ferroelectr. Freq. Control , vol.34 , pp. 461-466
    • Koshiba, M.1    Hasegawa, K.2    Suzuki, M.3
  • 17
    • 0032189434 scopus 로고    scopus 로고
    • Torsional wave scattering from a diameter step in a rod
    • DOI 10.1121/1.423716
    • H. E. Engan, " Torsional wave scattering from a diameter step in a rod.," J. Acoust. Soc. Am. JASMAN 0001-4966 104, 2015-2024 (1998). 10.1121/1.423716 (Pubitemid 28463095)
    • (1998) Journal of the Acoustical Society of America , vol.104 , Issue.4 , pp. 2015-2024
    • Engan, H.E.1
  • 18
    • 0043071044 scopus 로고    scopus 로고
    • The reflection of the fundamental torsional mode from cracks and notches in pipes
    • DOI 10.1121/1.1582439
    • A. Demma, P. Cawley, and M. J. S. Lowe, " The reflection of the fundamental torsional mode from cracks and notches in pipes.," J. Acoust. Soc. Am. JASMAN 0001-4966 114, 611-625 (2003). 10.1121/1.1582439 (Pubitemid 36959463)
    • (2003) Journal of the Acoustical Society of America , vol.114 , Issue.2 , pp. 611-625
    • Demma, A.1    Cawley, P.2    Lowe, M.3    Roosenbrand, A.G.4
  • 20
    • 0036487082 scopus 로고    scopus 로고
    • An FEM simulation for guided elastic wave generation and reflection in hollow cylinders with corrosion defects
    • DOI 10.1115/1.1428331
    • W. Zhu, " An FEM simulation for guided elastic wave generation and reflection in hollow cylinders with corrosion defects.," ASME J. Pressure Vessel Technol. JPVTAS 0094-9930 124, 108-117 (2002). 10.1115/1.1428331 (Pubitemid 35202429)
    • (2002) Journal of Pressure Vessel Technology, Transactions of the ASME , vol.124 , Issue.1 , pp. 108-117
    • Zhu, W.1
  • 21
    • 0032158143 scopus 로고    scopus 로고
    • The reflection of guided waves from circumferential notches in pipes
    • JAMCAV 0021-8936,. 10.1115/1.2789105
    • D. N. Alleyne, M. J. S. Lowe, and P. Cawley, " The reflection of guided waves from circumferential notches in pipes.," ASME J. Appl. Mech. JAMCAV 0021-8936 65, 635-641 (1998). 10.1115/1.2789105
    • (1998) ASME J. Appl. Mech. , vol.65 , pp. 635-641
    • Alleyne, D.N.1    Lowe, M.J.S.2    Cawley, P.3
  • 22
    • 0034831165 scopus 로고    scopus 로고
    • Rapid, long range inspection of chemical plant pipework using guided waves
    • ZZZZZZ 1060-135X, 101.
    • D. N. Alleyne, B. Pavlakovic, M. J. S. Lowe, and P. Cawley, " Rapid, long range inspection of chemical plant pipework using guided waves.," Insight ZZZZZZ 1060-135X 43, 93-96, 101 (2001).
    • (2001) Insight , vol.43 , pp. 93-96
    • Alleyne, D.N.1    Pavlakovic, B.2    Lowe, M.J.S.3    Cawley, P.4
  • 23
    • 0000729436 scopus 로고    scopus 로고
    • Scattering of guided waves by circumferential cracks in steel pipes
    • JAMCAV 0021-8936,. 10.1115/1.1364493
    • H. Bai, A. H. Shah, N. Popplewell, and S. K. Datta, " Scattering of guided waves by circumferential cracks in steel pipes.," ASME J. Appl. Mech. JAMCAV 0021-8936 68, 619-631 (2001). 10.1115/1.1364493
    • (2001) ASME J. Appl. Mech. , vol.68 , pp. 619-631
    • Bai, H.1    Shah, A.H.2    Popplewell, N.3    Datta, S.K.4
  • 24
    • 0036924739 scopus 로고    scopus 로고
    • The variation of the reflection coefficient of extensional guided waves in pipes from defects as a function of defect depth, axial extent, circumferential extent and frequency
    • PIBMEU 0954-4054.
    • P. Cawley, M. J. S. Lowe, F. Simonetti, C. Chevalier, and A. G. Roosenbrand, " The variation of the reflection coefficient of extensional guided waves in pipes from defects as a function of defect depth, axial extent, circumferential extent and frequency.," Proc. Inst. Mech. Eng., Part B PIBMEU 0954-4054 216, 1131-1143 (2002).
    • (2002) Proc. Inst. Mech. Eng., Part B , vol.216 , pp. 1131-1143
    • Cawley, P.1    Lowe, M.J.S.2    Simonetti, F.3    Chevalier, C.4    Roosenbrand, A.G.5
  • 25
    • 1642321342 scopus 로고    scopus 로고
    • The reflection of guided waves from notches in pipes: A guide for interpreting corrosion measurements
    • NDITDS 0308-9126,. 10.1016/j.ndteint.2003.09.004
    • A. Demma, P. Cawley, M. J. S. Lowe, A. G. Roosenbrand, and B. Pavlakovic, " The reflection of guided waves from notches in pipes: A guide for interpreting corrosion measurements.," NDT Int. NDITDS 0308-9126 37, 167-180 (2004). 10.1016/j.ndteint.2003.09.004
    • (2004) NDT Int. , vol.37 , pp. 167-180
    • Demma, A.1    Cawley, P.2    Lowe, M.J.S.3    Roosenbrand, A.G.4    Pavlakovic, B.5
  • 26
    • 0028149884 scopus 로고
    • Utilization of guided elastic waves for the characterization of circumferential cracks in hollow cylinders
    • DOI 10.1121/1.410565
    • J. J. Ditri, " Utilization of guided elastic waves for the characterization of circumferential cracks in hollow cylinders.," J. Acoust. Soc. Am. JASMAN 0001-4966 96, 3769-3775 (1994). 10.1121/1.410565 (Pubitemid 24376453)
    • (1994) Journal of the Acoustical Society of America , vol.96 , Issue.6 , pp. 3769-3775
    • Ditri, J.J.1
  • 27
    • 0028129931 scopus 로고
    • Magnetostrictive generation and detection of longitudinal, torsional, and flexural waves in a steel rod [43.38 Ct, 43.20.Jr, 43.20.Mv]
    • DOI 10.1121/1.411391
    • H. Kwun, " Magnetostrictive generation and detection of longitudinal, torsional, and flexural waves in a steel rod.," J. Acoust. Soc. Am. JASMAN 0001-4966 96, 1202-1204 (1994). 10.1121/1.411391 (Pubitemid 24258410)
    • (1994) Journal of the Acoustical Society of America , vol.96 , Issue.2 , pp. 1202-1204
    • Kwun, H.1    Teller, C.M.2
  • 28
    • 33845913818 scopus 로고    scopus 로고
    • Circumferential and longitudinal defect detection using T(0, 1) mode excited by thickness shear mode piezoelectric elements
    • DOI 10.1016/j.ultras.2006.05.154, PII S0041624X06001922
    • Z. Liu, C. He, B. Wu, X. Wang, and S. Yang, " Circumferential and longitudinal defect detection using T (0,1) mode excited by thickness shear mode piezoelectric elements.," Ultrasonics ULTRA3 0041-624X 44, e1135-e1138 (2006). 10.1016/j.ultras.2006.05.154 (Pubitemid 46017057)
    • (2006) Ultrasonics , vol.44 , Issue.SUPPL.
    • Liu, Z.1    He, C.2    Wu, B.3    Wang, X.4    Yang, S.5
  • 29
    • 0000743092 scopus 로고    scopus 로고
    • Characteristics of the reflection of lamb waves from defects in plates and pipes
    • Plenum Press, New York
    • M. J. S. Lowe, " Characteristics of the reflection of lamb waves from defects in plates and pipes.," in Review of Progress in Quantitative NDE (Plenum Press, New York, 1998) Vol. 17.
    • (1998) Review of Progress in Quantitative NDE , vol.17
    • Lowe, M.J.S.1
  • 30
    • 0032157201 scopus 로고    scopus 로고
    • The mode conversion of a guided wave by a part-circumferential notch in a pipe
    • JAMCAV 0021-8936,. 10.1115/1.2789107
    • M. J. S. Lowe, D. N. Alleyne, and P. Cawley, " The mode conversion of a guided wave by a part-circumferential notch in a pipe.," ASME J. Appl. Mech. JAMCAV 0021-8936 65, 649-656 (1998). 10.1115/1.2789107
    • (1998) ASME J. Appl. Mech. , vol.65 , pp. 649-656
    • Lowe, M.J.S.1    Alleyne, D.N.2    Cawley, P.3
  • 31
    • 0031994949 scopus 로고    scopus 로고
    • Defect detection in pipes using guided waves
    • ULTRA3 0041-624X,. 10.1016/S0041-624X(97)00038-3
    • M. J. S. Lowe, D. N. Alleyne, and P. Cawley, " Defect detection in pipes using guided waves.," Ultrasonics ULTRA3 0041-624X 36, 147-154 (1998). 10.1016/S0041-624X(97)00038-3
    • (1998) Ultrasonics , vol.36 , pp. 147-154
    • Lowe, M.J.S.1    Alleyne, D.N.2    Cawley, P.3
  • 32
    • 0016993339 scopus 로고
    • On inspection of thin-walled tubes for transverse and longitudinal flaws by guided ultrasonic waves
    • IESUAU 0018-9537.
    • W. Mohr and P. Holler, " On inspection of thin-walled tubes for transverse and longitudinal flaws by guided ultrasonic waves.," IEEE Trans. Sonics Ultrason. IESUAU 0018-9537 23, 369-373 (1976).
    • (1976) IEEE Trans. Sonics Ultrason. , vol.23 , pp. 369-373
    • Mohr, W.1    Holler, P.2
  • 33
    • 0036700346 scopus 로고    scopus 로고
    • A baseline and vision of ultrasonic guided wave inspection potential
    • DOI 10.1115/1.1491272
    • J. L. Rose, " A baseline and vision of ultrasonic guided wave inspection potential.," ASME J. Pressure vessel Technol. 124, 273-282 (2002). 10.1115/1.1491272 0002-7820 (Pubitemid 35202386)
    • (2002) Journal of Pressure Vessel Technology, Transactions of the ASME , vol.124 , Issue.3 , pp. 273-282
    • Rose, J.L.1
  • 34
    • 0018372078 scopus 로고
    • The propagation in metal tubing of ultrasonic wave modes equivalent to Lamb waves
    • DOI 10.1016/0041-624X(79)90006-4
    • M. G. Silk and K. F. Bainton, " The propagation in metal tubing of ultrasonics wave modes equivalent to lamb waves.," Ultrasonics ULTRA3 0041-624X 17, 11-19 (1979). 10.1016/0041-624X(79)90006-4 (Pubitemid 9094633)
    • (1979) Ultrasonics , vol.17 , Issue.1 , pp. 11-19
    • Silk, M.G.1    Bainton, K.F.2
  • 35
    • 0031275162 scopus 로고    scopus 로고
    • Axisymmetric guided wave scattering by cracks in welded steel pipes
    • JPVTAS 0094-9930,. 10.1115/1.2842322
    • W. Zhuang, A. H. Shah, and S. K. Datta, " Axisymmetric guided wave scattering by cracks in welded steel pipes.," ASME J. Pressure Vessel Technol. JPVTAS 0094-9930 119, 401-406 (1997). 10.1115/1.2842322
    • (1997) ASME J. Pressure Vessel Technol. , vol.119 , pp. 401-406
    • Zhuang, W.1    Shah, A.H.2    Datta, S.K.3
  • 36
    • 0032317721 scopus 로고    scopus 로고
    • Ultrasonic guided wave NDT for hidden corrosion detection
    • RNEVER 0934-9847.
    • W. Zhu, J. L. Rose, J. N. Barshinger, and V. S. Agarwala, " Ultrasonic guided wave NDT for hidden corrosion detection.," Res. Nondestruct. Eval. RNEVER 0934-9847 10, 205-225 (1998).
    • (1998) Res. Nondestruct. Eval. , vol.10 , pp. 205-225
    • Zhu, W.1    Rose, J.L.2    Barshinger, J.N.3    Agarwala, V.S.4
  • 37
    • 0021500847 scopus 로고
    • Intrinsic modes in a nonseparable ocean waveguide
    • JASMAN 0001-4966,. 10.1121/1.391309
    • J. M. Arnold and L. B. Felsen, " Intrinsic modes in a nonseparable ocean waveguide.," J. Acoust. Soc. Am. JASMAN 0001-4966 76, 850-860 (1984). 10.1121/1.391309
    • (1984) J. Acoust. Soc. Am. , vol.76 , pp. 850-860
    • Arnold, J.M.1    Felsen, L.B.2
  • 38
    • 70350421275 scopus 로고    scopus 로고
    • Experimental and numerical studies on lamb waves conversion in a waveguide with Gaussian section variation
    • Vancouver, Canada
    • P. Marical, M. Ech-Cherif El-Kettani, and M. V. Predoi, " Experimental and numerical studies on lamb waves conversion in a waveguide with Gaussian section variation.," in Proceedings of the IEEE International Ultrasonics Symposium, Vancouver, Canada (2006), pp. 1185-1188.
    • (2006) Proceedings of the IEEE International Ultrasonics Symposium , pp. 1185-1188
    • Marical, P.1    Ech-Cherif El-Kettani, M.2    Predoi, M.V.3
  • 39
    • 36048947070 scopus 로고    scopus 로고
    • Guided waves in elastic plates with Gaussian section variation: Experimental and numerical results
    • DOI 10.1016/j.ultras.2007.05.004, PII S0041624X07000571
    • P. Marical, " Guided waves in elastic plates with Gaussian section variation: Experimental and numerical results.," Ultrasonics ULTRA3 0041-624X 47, 1-9 (2007). 10.1016/j.ultras.2007.05.004 (Pubitemid 350086663)
    • (2007) Ultrasonics , vol.47 , Issue.1-4 , pp. 1-9
    • Marical, P.1    Ech-Cherif El-Kettani, M.2    Predoi, M.V.3
  • 41
    • 70350152603 scopus 로고    scopus 로고
    • Inverse problem for the geometry profile determination of waveguides with varying section using adiabatic behaviour of guided waves
    • IESUAU 0018-9537
    • M. Ech-Cherif El-Kettani, P. Marical, and Z. Hamitouche, " Inverse problem for the geometry profile determination of waveguides with varying section using adiabatic behaviour of guided waves.," IEEE Trans. Sonics Ultrason. IESUAU 0018-9537 56, 2023-2026 (2009).
    • (2009) IEEE Trans. Sonics Ultrason. , vol.56 , pp. 2023-2026
    • Ech-Cherif El-Kettani, M.1    Marical, P.2    Hamitouche, Z.3
  • 45
    • 77953582428 scopus 로고    scopus 로고
    • Last viewed 11/23/
    • http://www.guided-ultrasonics.com Last viewed 11/23/ 2009.
    • (2009)


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.