Search results for "Octane"
showing 10 items of 211 documents
CCDC 1051731: Experimental Crystal Structure Determination
2015
Related Article: Artis Kons, Ligita Rutkovska, Agris Bērziņš, Raitis Bobrovs, Andris Actiņš|2015|CrystEngComm|17|3627|doi:10.1039/C5CE00426H
CCDC 1051734: Experimental Crystal Structure Determination
2015
Related Article: Artis Kons, Ligita Rutkovska, Agris Bērziņš, Raitis Bobrovs, Andris Actiņš|2015|CrystEngComm|17|3627|doi:10.1039/C5CE00426H
CCDC 1051733: Experimental Crystal Structure Determination
2015
Related Article: Artis Kons, Ligita Rutkovska, Agris Bērziņš, Raitis Bobrovs, Andris Actiņš|2015|CrystEngComm|17|3627|doi:10.1039/C5CE00426H
CCDC 1051732: Experimental Crystal Structure Determination
2015
Related Article: Artis Kons, Ligita Rutkovska, Agris Bērziņš, Raitis Bobrovs, Andris Actiņš|2015|CrystEngComm|17|3627|doi:10.1039/C5CE00426H
CCDC 118152: Experimental Crystal Structure Determination
1999
Related Article: M.Beuter, U.Kolb, A.Zickgraf, E.Brau, M.Bletz, M.Drager|1997|Polyhedron|16|4005|doi:10.1016/S0277-5387(97)00180-0
Aqueous coefficient calculations for chemicals and drugs
1999
Aqueous functional group activity coefficients (AQUAFAC) is a group‐contribution method for estimating the aqueous coefficients. We have written a program for the calculation of these coefficients. The solubility S w of alkanes shows variation of 8 orders of magnitude. The comparison with experiment shows that AQUAFAC gives good S w estimations. For 4'‐substituted acetanilides, I‐, Br‐, nitro‐, Cl‐, F‐ and methoxy‐substituents decrease S w, while formyl‐ and amino‐substituents increase S w. For acetaminophen esters, S w decreases from the acetate to the decanoate. The S w of 29 barbiturates shows typical errors of 0.4 log S w units. For the cyclo‐alkane‐l’,5‐spirobarbituric acids, S w decre…
First-trimester maternal concentrations of polyfluoroalkyl substances and fetal growth throughout pregnancy
2019
Background: Several studies have investigated the possible association between prenatal exposure to perfluoroalkyl substances (PFASs) and birth anthropometry. However, none has assessed fetal size longitudinally. We studied the possible association between PFASs and fetal biometry. Methods: In 1230 mother-child pairs of three cohorts from the Spanish INMA-Project, we analyzed perfluorohexanesulfonic acid (PFHxS), perfluorooctanesulfonic acid (PFOS), perfluorooctanoic acid (PFOA), and perfluorononanoic acid (PFNA) in first-trimester maternal plasma (collection: 2003-2008). We measured abdominal circumference (AC), femur length (FL), biparietal diameter (BPD), and estimated fetal weight (EFW)…
Transfer of perfluoroalkyl substances from mother to fetus in a Spanish birth cohort
2015
CSIC Servicio de enlaces(opens in a new window)|Library catalogue(opens in a new window)|View at Publisher| Export | Download | Add to List | More... Environmental Research Volume 142, October 01, 2015, Pages 471-478 Transfer of perfluoroalkyl substances from mother to fetus in a Spanish birth cohort (Article) Manzano-Salgado, C.B.abc , Casas, M.abc, Lopez-Espinosa, M.-J.cd, Ballester, F.cd, Basterrechea, M.cef, Grimalt, J.O.gh, Jiménez, A.-M.ef, Kraus, T.i, Schettgen, T.i, Sunyer, J.abc, Vrijheid, M.abc a Centre for Research in Environmental Epidemiology (CREAL), Doctor Aiguader, 88, Barcelona, Catalonia, Spain b Universitat Pompeu Fabra (UPF), Barcelona, Spain c CIBER Epidemiología y Salu…
Perfluoroalkyl substances and immune cell counts in adults from the Mid-Ohio Valley (USA)
2021
Highlights • The literature on PFASs and circulating levels of immune cells is scarce. • Study of the association between PFASs and white blood cells at two different time points. • Cross-sectional study on the association between PFASs and lymphocyte subsets. • Positive association between PFHxS and total lymphocytes, especially for cell count. • Positive, but less consistent, association between PFOA and PFOS and total lymphocytes.
Catalytic cracking of alkanes on MCM-22 zeolite. Comparison with ZSM-5 and beta zeolite and its possibility as an FCC cracking additive
1995
Abstract N-heptane cracking has been carried out on MCM-22, and its kinetic and decay behaviour is compared with that of ZSM-5 and Beta zeolites. In the case of MCM-22 cracking occurs in the 10-member ring channel system, as well as in the large cavities formed by 12-member rings. Product selectivities show that MCM-22, while presenting features which indicate structural similarities with ZSM-5, it also presents characteristics corresponding to pores or cavities larger than ZSM-5. The selectivities to the individual products together with C1 + C2/iC4, C3/C4, C5/C2, iC4/total C4, and alkane/alkene ratios indicate that MCM-22 has good properties to be used as an FCC octane booster additive sp…