Definition of dc arc

1) put a voltage of 200-300 V across two graphite electrodes separated by about one centimeter; resulting heat causes ionization of the sample. This is commonly used in atomic absorption spectroscopy.

db fetch() failed!

initialize db() called
---------------------------------
fetch() called
SQL: SELECT term_id, term_term, term_definition, term_hitcount, term_source, created, modified FROM dictionary_terms WHERE term_term LIKE 'dc arc%' ORDER BY term_term ASC;
Filename: /home/chem/dbcache/db_ce0eac80436637ea18416c91bdf8bcb2
getFile_ts() called
cache has expired
getFromDB() called
connect() called
saveToCache() called
---------------------------------
fetch() called
SQL: SELECT term_id, term_term, term_definition, term_hitcount, modified, MATCH (term_term, term_definition) AGAINST ('dc arc') AS score FROM dictionary_terms WHERE MATCH (term_term, term_definition) AGAINST ('dc arc') ORDER BY score DESC LIMIT 7
Filename: /home/chem/dbcache/db_f4e468562560ddc390185cb266edc17e
getFile_ts() called
/home/chem/dbcache/db_f4e468562560ddc390185cb266edc17e does not exist
cache has expired
getFromDB() called