学術論文

To appear

  1. Yasas GODAGE, Eisuke KOBAYASHI, Shogo MURAMATSU, “Locally-Structured Unitary Network,“ APSIPA Transactions on Signal and Information Processing, to appear

2024

  1. Akihiro SHIOI, Yu OTAKE, Ikumasa YOSHIDA, Shogo MURAMATSU “Data-driven seismic response analysis based on dynamic mode decomposition with time-delay embedding,“ Journal of Applied Mechanics, JSCE, https://doi.org/10.2208/jscejj.23-15006, Feb. 2024 (in Japanese)

2023

  1. Akihiro Shioi, Yu Otake, Ikumasa Yoshida, Shogo Muramatsu and Susumu Ohno, “Data-driven approximation of geotechnical dynamics to an equivalent single-degree-of-freedom vibration system based on dynamic mode decomposition,” https://doi.org/10.1080/17499518.2023.2184479,  Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards NGRK, Vol. 17, No. 1, pp.77-97, 2023

2022

  1. Daichi Moteki, Takenori Murai, Tsuyoshi Hoshino, Hiroyasu Yasuda, Shogo Muramatsu, and Kiyoshi Hayasaka, “Capture method for digital twin of formation processes of sand bars,” https://doi.org/10.1063/5.0085574, Physics of Fluids, Mar. 2022(Online)
  2. Ruiki Kobayashi, Genki Fujii, Yuta Yoshida, Takeru Ota, Fumiaki Nin, Hiroshi Hibino, Samuel Choi, Shunsuke Ono, Shogo Muramatsu, “Sparsity-Aware OCT Volumetric Data Restoration Using Optical Synthesis Model,” DOI: 10.1109/TCI.2022.3183396, IEEE Transactions on Computational Imaging, Vol. 8,  pp.505 – 520, June 2022
  3. Daichi Moteki, Shohei Seki, Shogo Muramatsu, Kiyoshi Hayasaka, and Hiroyasu Yasuda, “On the occurrence of sandbars,” DOI: 10.1063/5.0128760, Physics of Fluids, 2022

2021

  1. Naoki Endo, Yu Otake, Yosuke Higo and Shogo Muramatsu, Visualization of Micro Morphology for Soil Micromechanics Modeling: An Application of Super-resolution to X-ray CT images, Journal of JSCE, SER. A2 Applied Mechanics., https://doi.org/10.2208/jscejam.76.2_I_35, Feb. 2021 (in Japanese)
  2. Taiga Shoji, Yu Otake, Kyohei Shigeno, Yosuke Higo and Shogo Muramatsu, Basic Study on Optimization of Sensor Placements for Real Time Alternative Simulation, Journal of JSCE, SER. A2 Applied Mechanics.,DOI https://doi.org/10.2208/jscejam.76.2_I_25, Feb. 2021 (in Japanese)
  3. Yu Otake, Kyohei Shigeno, Yosuke Higo and Shogo Muramatsu, Practical dynamic reliability analysis with spatiotemporal features in geotechnical engineering, Georisk, https://doi.org/10.1080/17499518.2021.1971250, Aug. 2021
  4. Atsushi Fujimoto,  Yuki Iwai, Shogo Muramatsu, Takashi Ishikawa, Satoru Shinkuma, and Riichiro Abe, Deep neural network for early image diagnosis of Stevens–Johnson syndrome/toxic epidermal necrolysis, The Journal of Allergy and Clinical Immunology: In Practice, https://doi.org/10.1016/j.jaip.2021.09.014, Sept. 2021

2020

  1. Takeru Ota, Fumiaki Nin, Samuel Choi, Shogo Muramatsu, Seishiro Sawamura, Genki Ogata, Mitsuo P. Sato, Katsumi Doi, Kentaro Doi, Tetsuro Tsuji, Satoyuki Kawano, Tobias Reichenbach, Hiroshi Hibino, Characterisation of the static offset in the travelling wave in the cochlear basal turn, Pflügers Archiv – European Journal of Physiology, https://doi.org/10.1007/s00424-020-02373-6, May 2020
  2. Yu Otake, Kyohei Shigeno, Shinya Watanabe, Yosuke Higo and Shogo Muramatsu, Data Driven Dynamic Realiability Analysis based on Spatiotemporal Feature Extraction with Mode Decomposition: Application for Effective Stress Dynamic Analysis, Journal of JSCE, SER. C Geosphere Eng., Vol.76, No.2, pp.142-157, https://doi.org/10.2208/jscejge.76.2_142, Jan. 2020 (in Japanese)

2019

  1. Samuel Choi, Fumiaki Nin, Takeru Ota, Kouhei Sato, Shogo Muramatsu, and Hiroshi Hibino , In vivo tomographic visualization of intracochlear vibration using a supercontinuum multifrequency-swept optical coherence microscope , Biomedical Optics Express, Vol. 10, No.7, 10.1364/BOE.10.003317, pp.3317-3342, July 2019.

2017

  1. Samuel Choi, Keita Sato, Takeru Ota, Fumiaki Nin, Shogo Muramatsu, and Hiroshi Hibino, Multifrequency-Swept Optical Coherence Microscopy for Highspeed Full-Field Tomographic Vibrometry in Biological Tissues, Biomedical Optics Express, Vol. 8, No.2,10.1364/BOE.8.000608, pp. 608-621 Feb. 2017.
  2. Shogo Muramatsu, Kosuke Furuya and Naotaka Yuki, Multidimensional Nonseparable Oversampled Lapped Transforms: Theory and Design，IEEE Trans. on Signal Process.，Vol. 65, No. 5,  pp.1251 -1264, 10.1109/TSP.2016.2633240, March 2017.

2016

  1. Kosuke Furuya, Shintaro Hara, Kenta Seino and Shogo Muramatsu, Boundary Operation of 2-D Non-separable Oversampled Lapped transforms,  APSIPA Transactions on Signal and Information Processing, Vol. 5, pp.1-9, DOI:10.1017/ATSIP.2016.3, April 2016.

2015

  1. Chen Zhiyu and Shogo Muramatsu, Multi-focus Image Fusion based on Multiple Directional LOTs, IEICE Trans. on Fundamentals, vol.E98-A, no.11, DOI: 10.1587/transfun.E98.A.2360, pp.2360-2365, Nov. 2015.
  2. Chen Zhiyu and Shogo Muramatsu, SURE-LET Poisson Denoising with Multiple Directional LOTs, IEICE Trans. on Fundamentals, vol.E98-A, no.8, pp. 1820-1828, DOI: 10.1587/transfun.E98.A.1820, Aug. 2015.

2013

  1. Natsuki Aizawa, Shogo Muramatsu and Masahiro Yukawa, Image Restoration with Multiple DirLOTs, IEICE Trans. on Fundamentals, Vol.E96-A,No.10,pp.1954-1961,DOI: 10.1587/transfun.E96.A.1954, Oct. 2013
  2. Hidenori Watanabe and Shogo Muramatsu, Look-Up-Table-Based Exponential Computation and Application to an EM Algorithm for GMM, IEICE Trans. on Fundamentals, Vol. E96-A No. 5 pp. 935-939, May 2013

2012

  1. H. Kikuchi, R. Abe, and S. Muramatsu, Simple Bitplane Coding and Its Application to Multi-Functional Image Compression, IEICE Trans. on Fundamentals, Vol. E95-A, No.5, pp.938-951, May 2012.
  2. Shogo Muramatsu, Dandan Han, Tomoya Kobayashi and Hisakazu Kikuchi: Directional Lapped Orthogonal Transform: Theory and Design, IEEE Trans. on Image Processing, DOI 10.1109/TIP.2011.2182055, May 2012.
  3. Shogo Muramatsu, Tomoya Kobayashi, Minoru Hiki and Hisakazu Kikuchi: Boundary Operation of 2-D Non-separable Linear-phase Paraunitary Filter Banks, IEEE Trans. on Image Processing, DOI 10.1109/TIP.2011.2181527, Apr. 2012.
  4. Junghyeun Hwang, Hisakazu Kikuchi, Shogo Muramatsu, Kazuma Shinoda and Jaeho Shin, Reversible Implementations of Irreversible Component Transforms and Their Comparisons in Image Compression, IEICE Trans. on Fundamentals, Vol.E95-A, No.4, pp.824-828, Apr. 2012

2011

  1. Peter Ndajah, Hisakazu Kikuchi, Masahiro Yukawa, Hidenori Watanabe, Shogo Muramatsu, An Investigation on the Quality of Denoised Images, Int. J. of Circuits, Systems, and Signal Processing, Issue 4, Volume 5, pp. 423-434, July 2011.
  2. Hidenori Watanabe and Shogo Muramatsu: Fast Algorithm and Efficient Implementation of GMM-Based Pattern Classifiers, Journal of Signal Processing Systems, Springer, Volume 63, Number 1, April 2011 , pp. 107-116(10), DOI: 10.1007/s11265-009-0439-z, Apr. 2011. (Online)

2010

  1. Mustafa M. Sami, Masahisa Saito, Shogo Muramatsu, Hisakazu Kikuchi, and Takashi Saku, A Computer-Aided Distinction Method of Borderline Grades of Oral Cancer, IEICE Trans. on Fundamentals, Vol. E93-A, No.8, pp.1544-1552, Aug. 2010.
  2. Junghyeun Hwang, Hisakazu Kikuchi, Shogo Muramatsu, and Jaeho Shin, An Optimum Design of Error Diffusion Filters Using the Blue Noise in All Graylevels,IEICE Trans. on Fundamentals, Vol. E93-A, No.8, pp. 1465-1475, Aug. 2010.
  3. Junghyeun Hwang, Hisakazu Kikuchi and Shogo Muramatsu, Tone-Aware Halftoning Using Optimized Error Diffusion Filters Based on Blue Noise Patterns, J. Signal Processing, Vol. 14, No. 4, pp. 301-304, July 2010.
  4. Mustafa M. Sami, Masahisa Saito, Shogo Muramatsu, Toshihiko Mikami, Kamal Al-Eryani, Jun Cheng, Faleh A. Sawair, Rasha Abu Eid, Hisakazu Kikuchi, and Takashi Saku, Twin-pair rete ridge analysis: a computer-aided method for facilitating objective histopathological distinction between epithelial dysplasia and carcinoma in-situ of the oral mucosa, Oral Medicine & Pathology, Vol. 14, No.3, pp. 81-89, Jan. 2010.

2009

  1. Minoru Hiki, Shogo Muramatsu and Hisakazu Kikuchi: Motion-Compensated Spatio-temporal Nonseparable Filtering for Scalable Video Coding, ITE Journal, Vol. 63, No. 11, pp.1604-1610, Nov., 2009. (in Japanese)
  2. Atsuyuki Adachi, Shogo Muramatsu and Hisakazu Kikuchi: Constraints of Second-Order Vanishing Moments on Lattice Structures for Non-separable Orthogonal Symmetric Wavelets, IEICE Trans. Fundamentals, Vol. E92-A, No. 3, pp.788-797, Mar. 2009.(Summary)

2008

  1. Kazuma Shinoda, Hisakazu Kikuchi and Shogo Muramatsu: Lossless-by-Lossy Coding for Scalable Lossless Image Compression,IEICE Transactions on Fundamentals, Vol. E91-A, No. 11, pp. 3356-3364, Nov. 2008.
  2. Sakol Udomsiri, Masahro Iwahashi and Shogo Muramatsu: Functionally Layered Video Coding for Water Level Monitoring IEICE Trans. Fundamentals, VOL. E91–A, NO. 4, pp.1006-1014, Apr. 2008.
  3. Yoshihisa Takahashi, Kentaro Hiraki, Hisakazu Kikuchi and Shogo Muramatsu: Color Demosaicing Using Asymmetric Directional Interpolation and Hue Vector Smoothing, IEICE Trans. on Fundamentals, E91–A No. 4, pp.978-986, Apr. 2008.
  4. Hisakazu Kikuchi, Akira Iijima, Shogo Muramatsu and Shigenobu Sasaki: Luma-based directional copy interpolation for color bilevel AM halftoning for printing,IEICE Electron. Express, Vol. 5, No. 5, pp.170-175, Mar. 2008.

2007

  1. Minoru Hiki, Takuma Ishida, Shogo Muramatsu and Hisakazu Kikuchi: Equivalent Parallel Structure of Deinterlacer Banks and Its Application to Optimal Bit-Rate Allocation, IEICE Trans. on Fundamentals,Vol.90, No. 3, pp.642-650, Mar. 2007,(Summary)
  2. Kentaro Hiraki, Yoshihisa Takahashi, Hisakazu Kikuchi and Shogo Muramatsu: Color Demosaicing That Takes Care of Local Areas Rich in High Spatial Frequencies, Journal of ITE, Vol61, No.8 pp.1029(131)-1217(139), Aug. 2007 (in Japanese)

2006

  1. Jun Uchita, Shogo Muramatsu, Takuma Ishida and Hisakazu Kikuchi: Parameter Embedding in Motion-JPEG2000 through ROI for Variable-Coefficient Invertible Deinterlacing, IEICE Trans. on Info. Sys., Vol.E89-D, No.11, pp.2794-2801, Nov. 2006

2005

  1. Takuma Ishida, Shogo Muramatsu and Hisakazu Kikuchi: Motion-JPEG2000 Codec Compensated for Interlaced Scanning Videos, IEEE Trans. on Image Processing, Vol. 14, No. 12, pp. 2179-2191, Dec. 2005.
  2. Yoshihisa Takahashi, Hisakazu Kikuchi, Shogo Muramatsu, Yoshito Abe and Naoki Mizutani: A New Color Demosaicing Method Using Asymmetric Average Interpolation and Its Iteration, IEICE Trans. on Fundamentals, Vol. E88-A, No. 8, pp. 2108-2116, Aug. 2005.
  3. Takuma Ishida, Shogo Muramatsu and Hisakazu Kikuchi: Lossless Compression of Motion JPEG2000 Intgrated with Invertible Deinterlacing, ITE Journal, Vol. 59, No. 7, pp. 1011-1019, July 2005.
  4. Satoshi Hasebe, Makoto Nagumo, Shogo Muramatsu and Hisakazu Kikuchi: Two-Step Detection of Video Shot Boundaries in a Wavelet Transform Domain, J. Inst. Image Electronics Engineers of Japan, Vol. 34, No. 1, pp. 17-26, Jan. 2005.

2004

  1. M. A. Rahman, Shigenobu Sasaki, Jie Zhou, Shogo Muramatsu and Hisakazu Kikuchi: Evaluation of Selective Rake Receiver in Direct Sequence Ultra Wideband Communications, IEICE Trans. on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E87-A, No. 7, pp. 1742-1746, July 2004.
  2. Kazuyuki Uenaga, Shigenobu Sasaki, Ken-ichi Takizawa, Jier Zhou, Shogo Muramatsu and Hisakazu Kikuchi: Online SNR and Fading Parameter Estimation for Parallel Combinatorial SS Systems in Nakagami Fading Channels, IEICE Trans. on Fundamentals, Vol. E87-A, No. 6, pp. 1495-1499, Jun. 2004.
  3. Jun Uchita, Takuma Ishida, Shogo Muramatsu, Hisakazu Kikuchi and Tetsuro Kuge: A Parameter Decimation Technique for Variable-Coefficient Invertible Deinterlacing, IEICE Trans. on Fundamentals, Vol. E87-A, No. 6, pp. 1363-1370, Jun. 2004.
  4. Takuma Ishida, Shogo Muramatsu, Hisakazu Kikuchi and Tetsuro Kuge: Invertible Deinterlacing with Variable Coefficients, IEICE Trans. on Fundamentals, Vol. J87-A, No. 2, pp. 336-341, Feb. 2004. (in Japanese)
  5. Jie Zhou, Kentas Ishizawa, Shigenobu Sasaki, Shogo Muramatsu, Hisakazu Kikuchi and Yoshikuni Onozato: Generalized Spatial Correlation Equations for Antenna Array in Wireless Diversity Reception: Exact and Approximate Analyses, IEICE Trans. on Communications, Vol. E87-B, No. 1, pp. 204-208, Jan. 2004.

2003

  1. Shogo Muramatsu, Takuma Ishida and Hisakazu Kikuchi: Invertible Deinterlacing with Sampling-Density Preservation: Theory and Design, IEEE Trans. on Signal Processing, Vol.51, No.9, pp.2343-2356, Sep 2003
  2. Takuma Ishida, Tatsuumi Soyama, Shogo Muramatsu, Hisakazu Kikuchi and Tetsuro Kuge: A Lifting Implementation of Variable-Coefficient Invertible Deinterlacer with Embedded Motion Detector, IEICE Trans. on Fundamentals, Vol.E86-A, No.8, pp.1942-1948, Aug 2003
  3. Zhou Jie, Shigenobu Sasaki, Shogo Muramatsu, Hisakazu Kikuchi and Yoshikuni Onozato: Spatial Correlation Functions for a Circular Antenna Array and Their Applications in Wireless Communication Systems (Letter) , IEICE Trans. on Fundamentals, Vol.E86-A, pp.1716-1723, July 2003
  4. Hisakazu Kikuchi, Hiroto Sato, Satoshi Hasebe, Naoki Mizutani, Shogo Muramatsu, Shigenobu Sasaki, Zhou Jie, Seishi Sekine, Yoshito Abe, Ikuo Tofukuji and Makoto Nakashizuka: Extra Encoding of Fine Grayscale Data into 8-bit sRGB Color Space, Opt. Eng., Vol.42, pp.1940-1948, July 2003
  5. Zhou Jie, Hisakazu Kikuchi, Shigenobu Sasaki, Shogo Muramatsu and Yoshikuni Onozato: Performance Analysis of a DS-CDMA Cellular System with Cell Splitting into Macrocell and Microcell Architecture, IEICE Trans. on Communications, Vol.E86-B, pp.1967-1977, June 2003
  6. Naoki Mizutani, Hiroto Sato, Shigenobu Sasaki, Shogo Muramatsu, Zhou Jie and Hisakazu Kikuchi: Quality-Oriented Image Coding Using an Objective Measure of PSNR, Journal of Signal Processing, Vol.7, No.3, pp.229-237, May 2003 (in Japanese)
  7. Tatsuumi Soyama, Takuma Ishida, Shogo Muramatsu, Hisakazu Kikuchi and Tetsuro Kuge: Lifting Architecture of Invertible Deinterlacing, IEICE Trans. on Fundamentals, Vol.E86-A, No.4, pp.779-786, Apr 2003

2002

  1. Ken-ichi Takizawa, Shigenobu Sasaki, Zhou Jie, Shogo Muramatsu and Hisakazu Kikuchi: Online SNR Estimation for Parallel Combinatorial SS Systems in Nakagami Fading Channels, IEICE Trans. on Fundamentals, Vol.E85-A, No.12, pp.2847-2858, Dec 2002
  2. Zhou Jie, Hisakazu Kikuchi, Shigenobu Sasaki, Shogo Muramatsu and Yoshikuni Onozato: Performance Investigation of Two Transmit Diversity Shcemes with Perfect/Imperfect Channel Evaluation in Wireless Communication, IEICE Trans. on Communications, Vol.E85-B, No.10, pp.1957-1965, Oct 2002
  3. Zhou Jie, Hisakazu Kikuchi, Shigenobu Sasaki, Shogo Muramatsu and Yoshikuni Onozato: Forward Link Performance of TDMA/W-CDMA Spectrum Overlaid System with Interference Cancellation for Future Wireless Communications, IEICE Trans. on Fundamentals, Vol.E85-A, No.7, pp.1536-1545, Jul 2002
  4. Ken-ichi Takizawa, Shigenobu Sasaki, Shogo Muramatsu, Zhou Jie and Hisakazu Kikuchi: Performance Bounds in Convolutional Coded Parallel Combinatorial SS Systems (Letter) , IEICE Trans. on Fundamentals, Vol.E85-A, No.7, pp.1696-1701, Jul 2002

2001

  1. Ken-ichi Takizawa, Shigenobu Sasaki, Shogo Muramatsu and Hisakazu Kikuchi: Iterative Demodulation and Decoding for Parallel Combinatorial SS Systems, IEICE Trans. on Fundamentals, Vol.E84-A, No.12, pp.2991-2999, Dec 2001
  2. Naoki Mizutani, Shogo Muramatsu and Hisakazu Kikuchi: Memory Access Estimation of Filter Bank Implementation on Different DSP Architectures, IEICE Trans. on Fundamentals, Vol.E84-A, No.8, pp.1951-1959, Aug 2001

2000

  1. Masayuki Kurosaki, Shogo Muramatsu and Hitoshi Kiya: A Motion Estimation with Two Images of Less Gray Level (Letter) , IEICE Trans. on Fundamentals, Vol.J83-A, No.12, pp.1434-1440, Dec 2000 (in Japanese)
  2. Ayuko Takagi, Shogo Muramatsu and Hitoshi Kiya: Motion Estimation with Power Scalability and Its VHDL Model, IEICE Trans. on Fundamentals, Vol.E83-A, No.8, pp.1608-1613, Aug 2000
  3. Shogo Muramatsu, Hitoshi Kiya and Akihiko Yamada: A Bit-Operation Algorithm of the Median-Cut Quantization and Its Hardware Architecture, IEICE Trans. on Fundamentals, Vol.E83-A, No.2, pp.320-328, Feb 2000

1999

  1. Shogo Muramatsu, Akihiko Yamada and Hitoshi Kiya: A Design Method of Multidimensional Linear-Phase Paraunitary Filter Banks with a Lattice Structure, IEEE Trans. on Signal Processing, Vol.47, No.3, pp.690-700, Mar 1999

1998

  1. Shogo Muramatsu, Akihiko Yamada and Hitoshi Kiya: The Two-Dimensional Lapped Hadamard Transform, IEICE Trans. on Fundamentals, Vol.E81-A, No.8, pp.1542-1549, Aug 1998
  2. Yasuhiro Harada, Shogo Muramatsu and Hitoshi Kiya: Multidimensional Multirate Filter and Filter Bank without Checkerboard Effect, IEICE Trans. on Fundamentals, Vol.E81-A, No.8, pp.1607-1615, Aug 1998
  3. Shogo Muramatsu and Hitoshi Kiya: A Design Method of Odd-Channel Linear-Phase Paraunitary Filter Banks with a Lattice Structure (Letter) , IEICE Trans. on Fundamentals, Vol.E81-A, No.5, pp.976-980, May 1998

1997

  1. Yasuhiro Harada, Shogo Muramatsu and Hitoshi Kiya: Two-Channel QMF Bank without Checkerboard Effect and Its Lattice Structure, IEICE Trans. on Fundamentals, Vol.J80-A, No.11, pp.1857-1867, Nov 1997 (in Japanese)
  2. Shogo Muramatsu, Hitoshi Kiya: Extended Overlap-Add and -Save Method for Multirate Signal Processing (Letter), IEEE Trans. on Signal Processing, Vol.45, No.9, pp.2376-2380, Sep 1997
  3. Xiaoxia Zou, Shogo Muramatsu and Hitoshi Kiya: FFT-Based Implementation of Sampling Rate Conversion with Fewer Number of Delays, IEICE Trans. on Fundamentals, Vol.E80-A, No.8, pp.1367-1375, Aug 1997

1996

  1. Shogo Muramatsu and Hitoshi Kiya: An Efficient Structure of GenLOT for Finite-Duration Sequences and Its Application to M-Band Discrete-Time Wavelet Transforms, IEICE Trans. on Fundamentals, Vol.J79-A, No.12, pp.1966-1976, Dec 1996 (in Japanese)
  2. Shogo Muramatsu and Hitoshi Kiya: A New Factorization Technique for the Generalized Linear-Phase LOT and Its Fast Implementation, IEICE Trans. on Fundamentals, Vol.E79-A, No.8, pp.1173-1179, Aug 1996

1995

  1. Shogo Muramatsu and Hitoshi Kiya: Parallel Processing Techniques for Multidimensional Sampling Lattice Alteration Based on Overlap-add and Overlap-save Methods, IEICE Trans. on Fundamentals, Vol.E78-A, No.8, pp.934-943, Aug 1995

1994

  1. Shogo Muramatsu and Hitoshi Kiya: An Extended Overlap-Add Method and Save Method for Sampling Rate Conversion, IEICE Trans. on Fundamentals, Vol.J77-A, No.8, pp.1046-1055, Aug 1994 (in Japanese)
  2. Shogo Muramatsu and Hitoshi Kiya: Resolution Conversion Method with Arbitrary Rational Values for Transform-Coded Images, IEICE Trans. on Fundamentals, Vol.J77-A, No.3, pp.369-378, Mar 1994 (in Japanese)

1993

  1. Shogo Muramatsu and Hitoshi Kiya: Scale Factor of Resolution Conversion Based on Orthogonal Transforms (Letter) , IEICE Trans. on Fundamentals, Vol.E76-A, No.7, pp.1150-1153, July 1993