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  • Refractive Index and Optical Dispersion of In2O3, InBO3 and Gahnite

    Creator:
    Medenbach, O., Siritanon, Theeranun, Subramanian, Mas, Dettmar, D., Shannon, R. D., and Fischer, R. X.
    Abstract:
    Refractive indices of In₂O₃, In₂₋ₓSnₓO₃, InBO₃ and 2 different gahnite crystals (ZnAl₂O₄ and Zn.₉₅Fe.₀₅Al₂O₄) were measured at wavelengths of 435.8 to 643.8 nm and were used to calculate n at λ = 589.3 nm ( nD ) and at λ = ∞ (n∞) using the one-term Sellmeier equation 1/(n²-1) =...
    Resource Type:
    Article
    Full Text:
    . 11 (1880) 70. [12] E.Staritzky, Analyt. Chem. 28 (1956) 553. In2O3 [13] E.M.Levin, R.S.Roth

  • The use of surface active agents in the bleaching of sulfite wood pulps

    Creator:
    Osborn, Robert Otto
    Resource Type:
    Dissertation
    Full Text:
    acid) was an oversight; however, the nitrations proceeded very smoothly and some technical

  • Hydrogen abstraction from substituted t-butylbenzenes

    Creator:
    Harvey, Robert Louis
    Abstract:
    A study of the relative rates of the alkyl hydrogen abstraction from a series of meta and para substituted t-butylbenzenes by the chlorine atom at 70°C has been carried out. Application of the Hammett equation yielded a ρ value of -0.44 for the para compounds. Possible explanations for the non-linearity...
    Resource Type:
    Masters Thesis
    Full Text:
    abstraction from a series of meta and para substituted t- butylbenzenes by the chlorine atom at 70 C o has

  • Steric effects in free-radical hydrogen atom abstraction reactions

    Creator:
    Totherow, William D.
    Abstract:
    A study of the relative rates of benzylic hydrogen abstractions from a series of meta and para substituted neopentylbenzenes by the bromine radical and trichloromethyl radical at 70°C has been carried out. Application of the Hammett equation yields p values of -0.75 for the bromine atom and -0.94 for the...
    Resource Type:
    Masters Thesis
    Full Text:
    at 70°C has been carried out. Application of the Hammett equation yields p values of -0.75 for the

  • Atmospheric trace element abundances associated with slash burning

    Creator:
    Ungerer, Carl Andre
    Abstract:
    The atmospheric trace element abundances associated with slash burning have been measured by instrumental neutron activation analysis (INAA). On site ground level samples were collected during the slash burning season using high volume samplers and a cascade impactor. In addition to the air samples, soil, wood and ashed wood samples...
    Resource Type:
    Masters Thesis
    Full Text:
    , Na, K, Se, Hg, Br, and Cl to be depleted from 70-95% at 1100°C relative to unburned wood

  • Development, validation and the application of a congener specific photodegradation model for PBDEs

    Creator:
    Zeng, Xia
    Abstract:
    The thermodynamic properties of 39 PBDEs have been calculated using Gaussian 03 on the B3LYP/6-31G(d)//B3LYP/6-31G(d) level. The PBDE congeners' enthalpies of formation increase with increasing number of bromines and show a strong dependence on the bromine substitution pattern. The effects of bromine substitution pattern have been quantitatively studied by GAM...
    Resource Type:
    Dissertation
    Full Text:
    photodegradation of PBDEs. Photodegradation experiments were conducted for octa-BDE technical mixture and its

  • Effects of washing and aging on the metabolism of red beet root slices

    Creator:
    Kolattukudy, Pappachan Ettoop
    Abstract:
    The rate of the C¹⁴0₂ release from glucose, specifically labeled with C¹⁴ at 1, 2, 3+4, and positions, was used to study the relative participation of pathways of glucose catabolism in red beet slices. Evidence was obtained which indicated that in mature red beets glucose was catabolized mainly via glycolysis-tricarboxylic...
    Resource Type:
    Dissertation
    Full Text:
    - creased 3 -5 times in 20 -24 hours. O2 uptake by fresh slices was inhibited 60 -70 percent by 8 x 10 -5M

  • Drug Discovery from Diverse Bacteria – Bioactivity-guided Isolation of Known and New Metabolites

    Creator:
    Zhu, Chenxi
    Abstract:
    Exploring bioactive natural products has contributed largely to clinically approved drugs we have been using over the last 100 years. Especially among the anti-infective drugs, around 70% of currently used antibiotics were discovered or derived from microbial secondary metabolites, among them compounds like vancomycin, chloramphenicol, and erythromycin. Facing the unavoidable...
    Resource Type:
    Dissertation
    Full Text:
    technical aspects. J Antibiot (Tokyo), 2017. 70(1): p. 25- 40. 12 40. Ochi, K. and T. Hosaka, New

  • Novel monolithic columns for microscale liquid chromatography and capillary electrochromatography

    Creator:
    Chirica, Gabriela S.
    Abstract:
    The challenges prompted by miniaturization of chromatographic systems have led scientists to explore new avenues in the synthesis of stationary phases. Packed capillary columns have found limited application in routine analysis due to a number of technical difficulties, most of which are attributable to the frits. New column designs insure...
    Resource Type:
    Dissertation
    Full Text:
    limited application in routine analysis due to a number of technical difficulties, most of which are

  • A new procedure for the determination of holocellulose

    Creator:
    Swelim, Ahmed Abdel-Moniem
    Abstract:
    The preparation of holocellulose accurately and rapidly is very important to study the nature and relationships of the carbohydrate components and the substituent groups, acetyl, carboxyl, and methoxyl. In as much as bromine was thought to be less destructive to wood than chlorine, it was decided to attempt to isolate...
    Resource Type:
    Masters Thesis
    Full Text:
    chlorite and acetic acid at 70 to 80° C. for one hour intervals. Four treatments were found necessary