نتایج جستجو برای: poly aromatic hydrocarbon

تعداد نتایج: 138777  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2014
ardeshir khazaei ebrahim mehdipour bijan roodpeyman

poly(p-n-chlorostyrenesulphonamide) synthesized via direct chlorination of poly[(p-styrene) sulphonamide], can be used for selective chlorination of aromatic compounds. aromatic rings of the anisole, p-xylene, ethylbenzene and toluene are chlorinated with good yields. the polymer can be recovery, rechlorinated and reused several times.

2018
Lumin Chen Bo-Ying Bao Wei-Chun Chang Jason Yen-Ping Ho Bi-Hua Cheng Chung-Lin Wang Qifeng Tang Wei-Chung Cheng Hui-Wen Chang Yao-Ching Hung Wen-Lung Ma

The androgen receptor (AR) poly-glutamine polymorphism (AR-Q) was reported to play role in endometrial cancer (EMCA) development, yet controversial. Environmental factors interact with genetic variation have been reported in EMCA. Aerosol toxins, polycyclic aromatic hydrocarbon benzo[a]pyrene (BaP), are EMCA facilitators. This report examined the interplay between AR-Qs and BaP in EMCA. During ...

2015
B. Nogales

Members of the Roseobacter clade predominate in marine environments chronically polluted with hydrocarbons. Genomic analyses shows that these bacteria might possess up to six pathways for aromatic hydrocarbon degradation. Our hypothesis is that bacteria of the Roseobacter clade have genetic structures and strategies for degrading and tolerating hydrocarbons that are different from those of the ...

2016
A. Dick Vethaak Paul K. Baggelaar J. Hein M. van Lieverloo Freek Ariese

Citation: Vethaak AD, Baggelaar PK, van Lieverloo JHM and Ariese F (2016) Decadal Trends in Polycyclic Aromatic Hydrocarbon (PAH) Contamination Assessed by 1-Hydroxypyrene in Fish Bile Fluid in the Netherlands: Declining in Marine Waters but Still a Concern in Estuaries. Front. Mar. Sci. 3:215. doi: 10.3389/fmars.2016.00215 Decadal Trends in Polycyclic Aromatic Hydrocarbon (PAH) Contamination A...

Journal: :Chemical science 2017
Bruno Schuler Yunlong Zhang Sara Collazos Shadi Fatayer Gerhard Meyer Dolores Pérez Enrique Guitián Michael R Harper J Douglas Kushnerick Diego Peña Leo Gross

We designed and studied hydrocarbon model compounds by high-resolution noncontact atomic force microscopy. In addition to planar polycyclic aromatic moieties, these novel model compounds feature linear alkyl and cycloaliphatic motifs that exist in most hydrocarbon resources - particularly in petroleum asphaltenes and other petroleum fractions - or in lipids in biological samples. We demonstrate...

2009
Martin Haas Christian Leipski Rolf Chini

Context. This is the fourth in a series of papers based on the ISOCAM Parallel Survey at 6.7 μm. While the first three papers have been devoted to active galactic nuclei (AGN), here we report on emission-line galaxies without AGN signatures in their optical spectra. Aims. Polycyclic aromatic hydrocarbon (PAH) emission has been found in both starbursts and modestly starforming galaxies, but the ...

Journal: :Monthly Notices of the Royal Astronomical Society 2023

Abstract We examine the dependence of polycyclic aromatic hydrocarbon (PAH) band intensity ratios as a function average number carbon atoms and assess their effectiveness tracers for PAH size, utilising data, models, tools provided by NASA Ames Infrared Spectroscopic Database. To achieve this, we used spectra from mixtures PAHs different ionisation fractions, following size distribution. Our wo...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید