REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Washington Headquarters Services. Directorate for information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED 4. TITLE AND SUBTITLE Jan-Mar 1991 ONRASIA SCIENTIFIC INFORMATION BULLETIN 6. AUTHOR(S) Sachio Yamamoto, Director; Sandy Kawano, Editor 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Office of Naval Research APO San Francisco 96503-0007 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 5. FUNDING NUMBERS 8. PERFORMING ORGANIZATION REPORT NUMBER ONRASIA Vol 16, No. 1 10. SPONSORING/MONITORING AGENCY REPORT NUMBER This is a quarterly publication presenting articles covering recent developments in Far Eastern (particularly Japanese) scientific research. It is hoped that these reports (which do not constitute part of the scientific literature) will prove to be of value to scientists by providing items of interest well in advance of the usual scientific publications. The articles are written primarily by members of the staff of ONRASIA, with certain reports also being contributed by visiting stateside scientists. Occasionally, a regional scientist will be invited to submit an article covering his own work, considered to be of special interest. This publication is approved for official dissemination of technical and scientific information of interest to the Defense research community and the scientific community at large. It is available free of charge to approved members of the DOD scientific community. Send written request describing DOD affiliation to: Director, Office of Naval Research, Asian Office, APO San Francisco 96503-0007. CONTENTS A number of integrated problem-solving environments for the solution of partial differential equations have been developed in recent years. In this article two such systems are compared: DEQSOL, a Japanese project, and ELLPACK, an Research programs at Toshiba in vectorizing the circuit simulation program SPICE and at NEC on building a special purpose multiprocessor for circuit Optical computing activities in Japan are surveyed. |