Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3755Chemical news office., 1932 |
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Strona 215
... excess is it an evil . Of the two , echo is the more difficult to remove ; prevention by foresight in con- struction , aided by expert advice , if neces- sary , is the best plan . Есно . Echo arises by regular reflection of sound from ...
... excess is it an evil . Of the two , echo is the more difficult to remove ; prevention by foresight in con- struction , aided by expert advice , if neces- sary , is the best plan . Есно . Echo arises by regular reflection of sound from ...
Strona 223
... excess of this is found to vary as z3 , so that the additional absorption is assumed to be due to the photoelectric effect . It has been found that , by assuming the photoelectric term to vary as λ22 , an approximate agree- ment is ...
... excess of this is found to vary as z3 , so that the additional absorption is assumed to be due to the photoelectric effect . It has been found that , by assuming the photoelectric term to vary as λ22 , an approximate agree- ment is ...
Strona 224
... excess over that required for neutralisation . Alternatively , a lower ex ess of oleum or R.O.V. may be added . The acid should preferably be in excess from the commencement . Excess acid may be re- moved by washing , followed if ...
... excess over that required for neutralisation . Alternatively , a lower ex ess of oleum or R.O.V. may be added . The acid should preferably be in excess from the commencement . Excess acid may be re- moved by washing , followed if ...
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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