Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
Z wnętrza książki
Wyniki 1 - 3 z 4
Strona 211
... speak of hydrogen ion activity than it is to speak of hydrogen ion concentration . Since a decrease in the concentration or activity of the hydrogen ion may be used to express an increase in that of the hydroxyl ion , one and the same ...
... speak of hydrogen ion activity than it is to speak of hydrogen ion concentration . Since a decrease in the concentration or activity of the hydrogen ion may be used to express an increase in that of the hydroxyl ion , one and the same ...
Strona 215
... speaking , auditoriums are less likely to exhibit troublesome echo when their outlines are rectangular . An instruc- tive example of the trouble that may be caused by curved walls is cited by Watson ' in the case of the auditorium at ...
... speaking , auditoriums are less likely to exhibit troublesome echo when their outlines are rectangular . An instruc- tive example of the trouble that may be caused by curved walls is cited by Watson ' in the case of the auditorium at ...
Strona 219
... speaking , but the present discus- sion is limited to the consideration of natural features and characteristics . The alteration of quality and the noise introduced by amplifiers are such that they will require much improvement before ...
... speaking , but the present discus- sion is limited to the consideration of natural features and characteristics . The alteration of quality and the noise introduced by amplifiers are such that they will require much improvement before ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
absorbing absorption acid acoustic activity application Arts Association atom audience auditorium becomes bibliographies British cause ceiling cent Chemical chemistry coefficient complete contained cost cubic desired echo effect electricity electron element example excess existing experiment experimental expressed fact feet floor formation formula give given heat held hydrogen hydrogen ion importance increase industry intensity interest later less light lines London Manufacture March Marks material means measured metals methods million molecules necessary obtained Office optical ordinary organic organisation oxygen Patents plants Plaster possible present produced quantity references reflected reflected sound result reverberation Royal Sabine Science scientific seats Society solid solution sound space speaking specific spectrum square substances TABLE term theory tion total absorption Trade units University usual volume walls Watson weight window