-
CAS's SciFinder and new SciFinder Scholar deliver access to comprehensive chemistry databases (1997)
0.26
0.26088578 = sum of:
0.26088578 = product of:
1.3044288 = sum of:
0.02506159 = weight(abstract_txt:service in 5071) [ClassicSimilarity], result of:
0.02506159 = score(doc=5071,freq=1.0), product of:
0.058406003 = queryWeight, product of:
1.4999033 = boost
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.008507743 = queryNorm
0.42909274 = fieldWeight in 5071, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.09375 = fieldNorm(doc=5071)
0.0518513 = weight(abstract_txt:identification in 5071) [ClassicSimilarity], result of:
0.0518513 = score(doc=5071,freq=1.0), product of:
0.09483271 = queryWeight, product of:
1.9112328 = boost
5.8321705 = idf(docFreq=353, maxDocs=44421)
0.008507743 = queryNorm
0.546766 = fieldWeight in 5071, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.8321705 = idf(docFreq=353, maxDocs=44421)
0.09375 = fieldNorm(doc=5071)
0.083073996 = weight(abstract_txt:abstracts in 5071) [ClassicSimilarity], result of:
0.083073996 = score(doc=5071,freq=1.0), product of:
0.14863652 = queryWeight, product of:
2.9305081 = boost
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.008507743 = queryNorm
0.55890703 = fieldWeight in 5071, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.09375 = fieldNorm(doc=5071)
0.61382234 = weight(abstract_txt:substances in 5071) [ClassicSimilarity], result of:
0.61382234 = score(doc=5071,freq=2.0), product of:
0.49258387 = queryWeight, product of:
6.160126 = boost
9.398883 = idf(docFreq=9, maxDocs=44421)
0.008507743 = queryNorm
1.2461276 = fieldWeight in 5071, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
9.398883 = idf(docFreq=9, maxDocs=44421)
0.09375 = fieldNorm(doc=5071)
0.5306197 = weight(abstract_txt:chemical in 5071) [ClassicSimilarity], result of:
0.5306197 = score(doc=5071,freq=2.0), product of:
0.5631844 = queryWeight, product of:
9.315149 = boost
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.008507743 = queryNorm
0.94217753 = fieldWeight in 5071, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.09375 = fieldNorm(doc=5071)
0.2 = coord(5/25)
-
Search services and gateways (1992)
0.18
0.1757326 = sum of:
0.1757326 = product of:
0.73221916 = sum of:
0.024756977 = weight(abstract_txt:industry in 4290) [ClassicSimilarity], result of:
0.024756977 = score(doc=4290,freq=1.0), product of:
0.05192314 = queryWeight, product of:
6.1030455 = idf(docFreq=269, maxDocs=44421)
0.008507743 = queryNorm
0.47680044 = fieldWeight in 4290, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
6.1030455 = idf(docFreq=269, maxDocs=44421)
0.078125 = fieldNorm(doc=4290)
0.029535368 = weight(abstract_txt:service in 4290) [ClassicSimilarity], result of:
0.029535368 = score(doc=4290,freq=2.0), product of:
0.058406003 = queryWeight, product of:
1.4999033 = boost
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.008507743 = queryNorm
0.50569063 = fieldWeight in 4290, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.078125 = fieldNorm(doc=4290)
0.029225081 = weight(abstract_txt:structures in 4290) [ClassicSimilarity], result of:
0.029225081 = score(doc=4290,freq=1.0), product of:
0.07307066 = queryWeight, product of:
1.6776681 = boost
5.1194425 = idf(docFreq=721, maxDocs=44421)
0.008507743 = queryNorm
0.39995643 = fieldWeight in 4290, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.1194425 = idf(docFreq=721, maxDocs=44421)
0.078125 = fieldNorm(doc=4290)
0.03791203 = weight(abstract_txt:file in 4290) [ClassicSimilarity], result of:
0.03791203 = score(doc=4290,freq=1.0), product of:
0.08691417 = queryWeight, product of:
1.8296996 = boost
5.58337 = idf(docFreq=453, maxDocs=44421)
0.008507743 = queryNorm
0.4362008 = fieldWeight in 4290, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.58337 = idf(docFreq=453, maxDocs=44421)
0.078125 = fieldNorm(doc=4290)
0.06922832 = weight(abstract_txt:abstracts in 4290) [ClassicSimilarity], result of:
0.06922832 = score(doc=4290,freq=1.0), product of:
0.14863652 = queryWeight, product of:
2.9305081 = boost
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.008507743 = queryNorm
0.46575582 = fieldWeight in 4290, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.078125 = fieldNorm(doc=4290)
0.54156137 = weight(abstract_txt:chemical in 4290) [ClassicSimilarity], result of:
0.54156137 = score(doc=4290,freq=3.0), product of:
0.5631844 = queryWeight, product of:
9.315149 = boost
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.008507743 = queryNorm
0.96160585 = fieldWeight in 4290, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.078125 = fieldNorm(doc=4290)
0.24 = coord(6/25)
-
Wilks, E.S.: Polymer nomenclature and structure: a comparison of systems used by CAS, IUPAC, MDL, and DuPont : 1. Regular single-strand organic polymers (1997)
0.13
0.12775105 = sum of:
0.12775105 = product of:
1.0645921 = sum of:
0.04176932 = weight(abstract_txt:service in 988) [ClassicSimilarity], result of:
0.04176932 = score(doc=988,freq=1.0), product of:
0.058406003 = queryWeight, product of:
1.4999033 = boost
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.008507743 = queryNorm
0.7151545 = fieldWeight in 988, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.15625 = fieldNorm(doc=988)
0.13845664 = weight(abstract_txt:abstracts in 988) [ClassicSimilarity], result of:
0.13845664 = score(doc=988,freq=1.0), product of:
0.14863652 = queryWeight, product of:
2.9305081 = boost
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.008507743 = queryNorm
0.93151164 = fieldWeight in 988, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.15625 = fieldNorm(doc=988)
0.8843661 = weight(abstract_txt:chemical in 988) [ClassicSimilarity], result of:
0.8843661 = score(doc=988,freq=2.0), product of:
0.5631844 = queryWeight, product of:
9.315149 = boost
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.008507743 = queryNorm
1.5702958 = fieldWeight in 988, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.15625 = fieldNorm(doc=988)
0.12 = coord(3/25)
-
Wilks, E.S.: Polymer nomenclature and structure: a comparison of systems used by CAS, IUPAC, MDL, and DuPont : 2. Aftertreated (post-terated), alternating/periodic, and block polymers (1997)
0.13
0.12775105 = sum of:
0.12775105 = product of:
1.0645921 = sum of:
0.04176932 = weight(abstract_txt:service in 989) [ClassicSimilarity], result of:
0.04176932 = score(doc=989,freq=1.0), product of:
0.058406003 = queryWeight, product of:
1.4999033 = boost
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.008507743 = queryNorm
0.7151545 = fieldWeight in 989, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.15625 = fieldNorm(doc=989)
0.13845664 = weight(abstract_txt:abstracts in 989) [ClassicSimilarity], result of:
0.13845664 = score(doc=989,freq=1.0), product of:
0.14863652 = queryWeight, product of:
2.9305081 = boost
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.008507743 = queryNorm
0.93151164 = fieldWeight in 989, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.15625 = fieldNorm(doc=989)
0.8843661 = weight(abstract_txt:chemical in 989) [ClassicSimilarity], result of:
0.8843661 = score(doc=989,freq=2.0), product of:
0.5631844 = queryWeight, product of:
9.315149 = boost
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.008507743 = queryNorm
1.5702958 = fieldWeight in 989, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.15625 = fieldNorm(doc=989)
0.12 = coord(3/25)
-
Wilks, E.S.: Polymer nomenclature and structure: a comparison of systems used by CAS, IUPAC, MDL, and DuPont : 3. Comb/graft, cross-linked, and dendritic/hyperconnected/star polymers (1997)
0.13
0.12775105 = sum of:
0.12775105 = product of:
1.0645921 = sum of:
0.04176932 = weight(abstract_txt:service in 990) [ClassicSimilarity], result of:
0.04176932 = score(doc=990,freq=1.0), product of:
0.058406003 = queryWeight, product of:
1.4999033 = boost
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.008507743 = queryNorm
0.7151545 = fieldWeight in 990, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.576989 = idf(docFreq=1241, maxDocs=44421)
0.15625 = fieldNorm(doc=990)
0.13845664 = weight(abstract_txt:abstracts in 990) [ClassicSimilarity], result of:
0.13845664 = score(doc=990,freq=1.0), product of:
0.14863652 = queryWeight, product of:
2.9305081 = boost
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.008507743 = queryNorm
0.93151164 = fieldWeight in 990, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.9616747 = idf(docFreq=310, maxDocs=44421)
0.15625 = fieldNorm(doc=990)
0.8843661 = weight(abstract_txt:chemical in 990) [ClassicSimilarity], result of:
0.8843661 = score(doc=990,freq=2.0), product of:
0.5631844 = queryWeight, product of:
9.315149 = boost
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.008507743 = queryNorm
1.5702958 = fieldWeight in 990, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.1063476 = idf(docFreq=98, maxDocs=44421)
0.15625 = fieldNorm(doc=990)
0.12 = coord(3/25)