File:Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie (1892-1911.) (20426435011).jpg

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Title: Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie
Identifier: buletinulsocieta14soci (find matches)
Year: 1892-1911. (1890s)
Authors: Societatea de Stiinte din Bucuresti
Subjects: Science
Publisher: Bucuresti : Societatea
Contributing Library: American Museum of Natural History Library
Digitizing Sponsor: American Museum of Natural History Library

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BULETINUL SOCIETĂŢII DE SCIINŢE 577 RESISTIVITES m EAUK MINERALEI DIFFEREMlAlION A L'AIOE DESRESISTIVITES DES EAUK MINERALES NATURELLES DES EAUK MINERALES ARTIFICIELLES PAR D. NEGREANU GHAPITRE I-»-- MfiTHODE DE HESURE E1PL0Y£E POUR LES RfiSISTâNCES fiLECTRlQDES Principe de la methode. Pour la determination des resistances specifiqnes ou des resistivites des eaux minerales, je me suiş servi de la methode des courants alternatifs, indiqu^e par Kohlrausch, adoptant un dispositif special en vue de la mesure de ces resis- tances. Cette methode est tres-enpdditive et elle a hth tres-em- ploy^e dans un g-rand nombre des recherches de conductibilit^s electriques. surtout en AUemagne. Je citerai, entre autres, Ies noms des savants tres connus telsque Swante Arhenius, Oswald, Nernst qui ont utilis^ cette methode dans diverses recherches. Je rappele ici le principe de cette methode. Dans la branche A B du parallelog-ramme A B C D (fig*. i) on introduit le liquide electrolytique, dont on cherche Ia resistivite; dans la branche B C une r^sistance connue prise sur una boite â resistances; enfin,les branches A D et D C sont deux resistances connues. Dans l'une ^ des diagonales du parallelogram- me, la diagonale B D par exem- ple, on intercalle une pitite bo- bine d'induction E, dont l'inter- ropteur vibre tr^s-rapidement ; dans la seconde diagonale A C, ie t-l:phone T. Soit K la ri'^sis- tance '-lectrique de IVrlectrolyte. a la ff^sistance sans self-induction 'I • la branche Ij C, h et c des r<4sistances lin«^aires des branches A D et DC.
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(Mk. I;.

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Volume
InfoField
1905
Flickr tags
InfoField
  • bookid:buletinulsocieta14soci
  • bookyear:1892-1911.
  • bookdecade:1890
  • bookcentury:1800
  • bookauthor:Societatea_de_Stiinte_din_Bucuresti
  • booksubject:Science
  • bookpublisher:Bucuresti_Societatea
  • bookcontributor:American_Museum_of_Natural_History_Library
  • booksponsor:American_Museum_of_Natural_History_Library
  • bookleafnumber:583
  • bookcollection:americanmuseumnaturalhistory
  • bookcollection:biodiversity
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
9 August 2015



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current18:08, 21 September 2015Thumbnail for version as of 18:08, 21 September 2015572 × 848 (59 KB) (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Title''': Buletinul Societatii de Sciinte din Bucuresci, România = Bulletin de la Société des sciences de Bucarest, Roumanie<br> '''Identifier''': buletinulsocieta14soci ([https://comm...

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