ORANGE COUNTY EARNINGS

Simulation Sciences Inc.: The Brea supplier of software and services reported a net loss of $6.4 million, or 45 cents a share, for the first quarter, compared with a net loss of $3.7 million, or 37 cents a share, for the like period last year. The 1997 figure included a $5.2-million charge for research and development costs from an acquisition. Revenue declined 30% to $9.6 million from $13.6 million.