Results 11 to 20 of about 734,495 (266)

Polymerization of isoprene catalyzed by high active and thermo-stable iminopyridine-titanium complexes

open access: yesHecheng xiangjiao gongye, 2022
A series of well-defined iminopyridine-titanium complexes were prepared and characterized by nuclear magnetic resonance spectroscopy, X-ray diffraction analysis and elemental analysis.
ZHNAG Jun-hua, KUANG Jia, WANG Liang, LIANG Hong-wen, WANG Qing-gang
doaj   +1 more source

cis-1-Aminoindan-2-ol in Asymmetric Syntheses [PDF]

open access: yesSynthesis, 1998
A review on cis-1-aminoindan-2-ol derived asymmetric syntheses is described.
Arun K, Ghosh   +2 more
openaire   +2 more sources

Impact of washing parameters on bacterial filtration efficiency and breathability of community and medical facemasks

open access: yesScientific Reports, 2022
Can medical face masks be replaced by reusable community face masks with similar performance? The influence of the number of wash cycles, the wash temperature and the use of detergent was evaluated on the performance of one medical face masks (MFM) and ...
Henrietta Essie Whyte   +6 more
doaj   +1 more source

Stable carbon isotope fractionation in chlorinated ethene degradation by bacteria expressing three toluene oxygenases

open access: yesFrontiers in Microbiology, 2012
One difficulty in using bioremediation at a contaminated site is demonstrating that biodegradation is actually occurring in situ. The stable isotope composition of contaminants may help with this, since they can serve as an indicator of biological ...
Scott eClingenpeel   +8 more
doaj   +1 more source

Filtration efficiency of medical and community face masks using viral and bacterial bioaerosols

open access: yesScientific Reports, 2023
Face masks are often recommended in community settings to prevent the airborne transmission of respiratory viruses or bacteria. Our first objective was to develop an experimental bench to assess the viral filtration efficiency (VFE) of a mask with a ...
Sana Djeghdir   +6 more
doaj   +1 more source

Chemical Stress Relaxation of cis-1, 4-polybutadiene

open access: yesThe Journal of the Society of Chemical Industry, Japan, 1966
Polybutadiene is considered to be most promising elastomers in synthetic rubber industry as the result of remarkable improvement made on this material in recent years so that it contains now nearly all cis-1, 4 in its structure. The chemorheological study of this material is in this way becoming a very interesting subject.For the measurement of stress ...
MURAKAMI, Kenkichi   +4 more
openaire   +3 more sources

Antimicrobial Performance of an Innovative Technology of Atmospheric Plasma Reactors against Bioaerosols: Effectiveness in Removing Airborne Viable Viruses

open access: yesBuildings, 2022
Reducing the exposure to airborne contaminants, including bioaerosols containing viruses, is a key challenge in the context of indoor air quality. This study aims to assess the effectiveness of innovative Atmospheric Plasma Reactor (APR) technology ...
Jérémie Pourchez   +9 more
doaj   +1 more source

On the Problems and Principles of the Ananyino Age Bone Items Classification (the case of weapons, hunting outfit and horse harness)

open access: yesПоволжская археология, 2012
The article is devoted to topical problems related to classification and typology of bone products of the Ananyino cultural and historical area.
Shatalov Vasily A.
doaj   +1 more source

1-Methyl-2,6-cis-distyrylpiperidine

open access: yesActa Crystallographica Section E, 2010
The complete molecule of the title compound, C22H25N, is generated by crystallographic mirror symmetry, with two C atoms and the N atom lying on the mirror plane.
Guangrong Zheng   +3 more
doaj   +1 more source

Conformation of cis-1-(S-?-phenylethyl)decahydroquinolin-4-one

open access: yesChemistry of Heterocyclic Compounds, 1989
[No abstract available]
Aliev A.E., Grishina G.V.
openaire   +3 more sources

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