(55,581 - 55,600 of 56,663)

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Centraal laboratorium TNO (author), de Wolf, P. (author)
Als gevolg van de bevolkingstoename en de uitbreiding van de industrie in Nederland neemt de hoeveelheid te lozen afvalwater toe, terwijl de behoefte aan zoet water tegelijkertijd sterk stijgt. Tot nu toe werd afvalwater vrijwel uitsluitend, al dan niet na reiniging in rioolwaterzuiveringen, geloosd op de openbare binnenwateren. Nu in november...
article 1965
document
Instituut voor bodemvruchtbaarheid (author)
book 1965
document
Centraal laboratorium TNO (author), Hueck, H.J. (author)
The biodeterioration of materials is considered from the point of view of a biologist. As such it is part of hylobiology which deals with the biotic phenomena associated with materials. It is discussed that phenomena of biodeterioration have some resemblance with phenomena of human and plant-disease. Also in the methodological approach they have...
article 1965
document
Centraal laboratorium TNO (author), Talen, J.L. (author), Staverman, A.J. (author)
According to theoretical considerations of Staverman the molecular weight of a substance can be determined by means of osmometry even when the membrane is permeable to the solute of which the molecular weight must be determined. In this case the reflection coefficient of the membrane for the solute must be determined separately. The feasibility...
article 1965
document
Centraal laboratorium TNO (author), Salomon, G. (author)
Overzicht, samenvattingen van publicaties, lezingen en reisverslagen april 1964 - juli 1965
article 1965
document
Centraal laboratorium TNO (author), van Velden, P.F. (author)
Thermal conductivities have been measured, mainly at 40°C, of glasses within the systems PbO-Bi2O3-SiO2, PbO-Bi2O3-Al2O3-SiO2, and BaO- (Bi2O3 or PbO) -SiO2. Aiming at lowest thermal conductivity, preference was given to glasses of low silica and low alumina contents. Glass formation persists at ratios O/Si or O/(Si+Al) well above 4. Factors...
article 1965
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Centraal Laboratorium TNO Economisch-Technische afdeling TNO (author), Adema, D.M.M. (author), Hazeu, W. (author), Hueck-van der Plas, E.H. (author), Hueck, H.J. (author), van der Toorn, J. (author), Waterman, H.A. (author)
Research on biodeterioration of materials has been reported previously in "TNO-Nieuws" (ibid. 13, 398-405 (1958). Meanwhile this work has received considerable impetus from the formation of an international Group of Experts under the aegis of the Organization for Economic Co-operation and Development (OECD), Paris. For the first time a forum of...
article 1965
document
Instituut voor toegepast biologisch onderzoek in de natuur (author)
Uitgave ter gelegenheid van het 25-jarig bestaan van het instituut
book 1965
document
Centrale organisatie TNO (author)
other 1965
document
Technisch Physische Dienst TNO - TH (author), le Poole, J.B. (author), Bok, A.B. (author), Boogerd, W.J. (author)
The electron luminescence apparatus is designed to observe the luminescence of geological specimens due to electron bombardment. A 30 kV miniaturized electron gun and electro-magnetic lens with deflector and stigmator coils provides a 30 μm spot on the specimen. The axis of the irradiating system is at 45 degrees with the microscope axis. Xrays...
article 1965
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Centraal Instituut voor Voedingsonderzoek TNO Instituut voor Graan Meel en Brood TNO (author), van 't Root, M.J.M. (author)
article 1965
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Centraal Instituut voor Voedingsonderzoek TNO Instituut voor Graan Meel en Brood TNO (author), de Ruiter, D. (author)
article 1965
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Organisch Chemisch Instituut TNO (author), Willemsens, L.C. (author), van der Kerk, G.J.M. (author)
The reactions between triphenylplumbyllithium and small-ring heterocycles have been studied. {A figure is presented}. The reaction ran successfully with the following heterocycles: ethylene oxide, ethylene V83 V 2 sulphide, N-acylethylenimines and trimethylene oxide. No reaction occurred with ethylenimine, N-butylethylenimine, trimethylene...
article 1965
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Medisch Biologisch Laboratorium TNO (author), Welling, W. (author), Bootsma, D. (author), van Muiswinkel, E. (author), Berghegen, C.A.P. (author)
A technique for the fractionation of RNA by column chromatography on calcium phosphate is described. With this technique the incorporation of labeled inorganic phosphate into RNA of regenerating rat liver was studied. In the cytoplasm a RNA fraction was found, with molecular weight intermediate between that of soluble and microsomal RNA, that...
article 1965
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Organisch Chemisch Instituut TNO (author), Willemsens, L.C. (author), van der Kerk, G.J.M. (author)
The reaction of ketene with triphenyllead hydroxide in diethyl ether gave (triphenylplumbyl)acetic anhydride, (Ph3PbCH2CO)2O, the first anhydride-substituted organolead compound known. The reaction of ketene with triphenyllead acetate in absolute ethanol gave ethyl (triphenylplumbyl)acetate, Ph3PbCH2COOEt. A few reactions of the anhydride are...
article 1965
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Medisch Biologisch Laboratorium TNO (author), Jansz, H.S. (author), Pouwels, P.H. (author)
article 1965
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Medisch Biologisch Labortorium TNO (author), Bootsma, D. (author)
article 1965
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Centraal Instituut voor Voedingsonderzoek TNO (author), Hellendoorn, E.W. (author), de Boer, R. (author)
article 1965
document
Chemisch Laboratorium TNO (author), Leusink, A.J. (author), Noltes, J.G. (author)
article 1965
document
Radiobiologisch Instituut TNO (author), Broerse, J.J. (author), Barendsen, G.W. (author)
article 1965
(55,581 - 55,600 of 56,663)

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