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Digitale Medien

OCCURRENCE OF A SEROTONIN SULPHOTRANSFERASE IN THE BRAIN (1969)

Hidaka, H. ; Nagatsu, T. ; Yagi, K.

Oxford, UK : Blackwell Publishing Ltd

Journal of neurochemistry 16 (1969), S. 0

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ISSN: 1471-4159

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Medizin

Notizen: Abstract— —An enzyme catalysing the transfer of sulphate from 3′-phosphoadenylsulphate to serotonin was purified from rabbit brain. The purification procedure involved ammonium sulphate fractionation of the 200,000 g supernatant of rabbit brain homogenate, treatment with alumina Cγ, and chromatography on DEAE-cellulose. The enzyme was purified 67-fold from the 200,000 g supernatant of the brain homogenate. The intracranial distribution of the sulphotransferase was investigated and the cerebellum found to have rather high activity. The sulphotransferase activities of rabbit, dog, rat and bovine brains were compared; rabbit brain had the highest activity, followed by dog, rat and bovine brain.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1471-4159.1969.tb06457.x

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Digitale Medien

LIFE PREDICTION OF 316 STAINLESS STEEL UNDER CREEP-FATIGUE LOADING (1987)

Yagi, K. ; Kanemaru, O. ; Kubo, K. ; [weitere]

Oxford, UK : Blackwell Publishing Ltd

Fatigue & fracture of engineering materials & structures 9 (1987), S. 0

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ISSN: 1460-2695

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Maschinenbau

Notizen: Life prediction for creep-fatigue loading conditions should be related to creep damage mechanisms. In order to examine the effect of the creep damage mode on rupture life under creep-fatigue loading, a “combined creep-fatigue loading test” was carried out on 316 stainless steel. In this method, creep loading and fatigue loading are repeated alternately. The fracture criteria under combined loading closely depend on the creep fracture modes of the static creep test. A new life prediction method which uses this new fracture criterion is proposed. The criteria are changed when the creep damage mode varies. In order to verify the adequacy of this method, fatigue tests with a tensile strain-hold wave form were carried out. It is clear that rupture life in such fatigue tests is dependent on the chosen fracture criteria.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1460-2695.1987.tb00467.x

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Digitale Medien

Reflection electron microscopy (1987)

Yagi, K.

Copenhagen : International Union of Crystallography (IUCr)

Applied crystallography online 20 (1987), S. 147-160

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ISSN: 1600-5767

Quelle: Crystallography Journals Online : IUCR Backfile Archive 1948-2001

Thema: Geologie und Paläontologie , Physik

Notizen: Reflection electron microscopy (REM) in ultra-high vacuum (UHV) conditions is reviewed. UHV-REM can characterize surface structures of monolayer levels such as steps, domains of reconstructed surface structures and their boundaries and these capabilities are used to observe surface dynamic processes such as phase transitions of reconstructed surface structures and adsorbate structures and adsorption processes, oxidations, sublimations and ion-sputtering and annealing. The method is compared with other surface-imaging techniques.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1107/S0021889887086916

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