Zobrazeno 1 - 10
of 89
pro vyhledávání: '"R. J. Hopper"'
Autor:
R. J. Folwell, R. J. Hopper
Publikováno v:
Acta Horticulturae. :447-452
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33ee94bed5910dc55a01b62fe5d2003f
https://doi.org/10.17660/actahortic.1999.479.61
https://doi.org/10.17660/actahortic.1999.479.61
Autor:
R. J. Hopper
Publikováno v:
Rubber Chemistry and Technology. 66:623-633
At vulcanization temperatures, 2-(isopropylsulfinyl)-benzothiazole(ISB) generates 2-benzothiazole sulfenic acid as a reactive intermediate. In this respect (i.e., formation of a sulfenyl species), ISB is analogous to a benzothiazole sulfenamide, but
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f021bffeaabc768966668ba0daf8a5b9
https://doi.org/10.5254/1.3538334
https://doi.org/10.5254/1.3538334
Autor:
R. J. Hopper
Publikováno v:
Rubber Chemistry and Technology. 47:79-87
The activity of the thiosulfonamides and dithiotrichloromethanes as retarders is apparently a result of their ability to function as BTSH trapping agents. The effect of substituents on retarder efficiencies seems consistent with a mechanism involving
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca42db15065fc89e819f837d600a74bf
https://doi.org/10.5254/1.3540433
https://doi.org/10.5254/1.3540433
Autor:
R. J. Hopper
Publikováno v:
Rubber Chemistry and Technology. 53:1106-1116
N-Sulfonyl-sulfilimines which undergo a thermal elimination to form N-alkyl (or aryl)thiosulfonamides act as premature vulcanization inhibitors, apparently by the same mechanism as the thiosulfonamides. S,S-di(isopropyl)-N-(p-toluenesulfonyl) sulfili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4177ee1f9c192b37e7acfa17bb759154
https://doi.org/10.5254/1.3535081
https://doi.org/10.5254/1.3535081
Autor:
R. J. Hopper
Publikováno v:
The Antiquaries Journal. 62:316-346
SummaryThe Second Marquis of Rockingham (1730–1782) was a devoted collector of Roman Imperial coins. The letters here published cover only a limited period of his collecting activity, but they are significant for his association with Mr. James Byre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee049f9cd75613465ee0e2343c9546ab
https://doi.org/10.1017/s0003581500065926
https://doi.org/10.1017/s0003581500065926
Autor:
R. J. Hopper
Publikováno v:
Rubber Chemistry and Technology. 49:341-352
The 1,2-addition of certain N-chlorothioamides to the olefinic sites of EPDM produces modified polymers which exhibit improved covulcanization in blends with polydiene rubbers. A mechanism is postulated in which the modified EPDM retards the cure of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::258c484df982698f5f363456ee4b9bd3
https://doi.org/10.5254/1.3534969
https://doi.org/10.5254/1.3534969
Autor:
R. J. Hopper
Publikováno v:
The Journal of Hellenic Studies. 76:125-128
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebfffe91149540090a1c56d08b68cf2c
https://doi.org/10.2307/629587
https://doi.org/10.2307/629587
Autor:
R. J. Hopper
Publikováno v:
The Annual of the British School at Athens. 48:200-254
The recent publication, by Miss M. Crosby (in Hesperia XIX 189–312), of all the extant lists found at Athens belonging to the accounts of the poletai, and relating to the leasing of mines in the Laurion region, justifies a fresh examination of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::addc6632467fe06396e1ef9a05684bc8
https://doi.org/10.1017/s0068245400012557
https://doi.org/10.1017/s0068245400012557
Autor:
R. J. Hopper
Publikováno v:
Greece and Rome. 2:2-15
The student of anniversaries who is not particular to a year or two will recall that some two thousand years ago this year Corinth was refounded by Julius Caesar, following its destruction a little more than a hundred years before by Mummius. ‘Non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4db59305b6666ecd37b7ddfe056a5ee8
https://doi.org/10.1017/s0017383500020647
https://doi.org/10.1017/s0017383500020647
Autor:
R. J. Hopper
Publikováno v:
The Journal of Hellenic Studies. 63:35-51
Thucydides i, 77: .It has been said of this passage, ‘The words of the Athenian orator in Thucydides i, 77: are a familiar puzzle, and any new attempt to discuss them is apt to excite a smile.’ The whole of the chapter in which they stand has rec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27f341f00da8834afa06fa8ea8079951
https://doi.org/10.2307/627002
https://doi.org/10.2307/627002