Results 51 to 60 of about 3,231,981 (274)

Optimization of components in development of polymeric coatings for restoration of transport vehicles

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
It is proved, that for improving the performance characteristics of vehicle parts, including their corrosion resistance and wear resistance, it is advisable to use protective polymeric composite coatings.
А.V. Buketov   +10 more
doaj   +1 more source

Synthesis and conformations of [2.n]metacyclophan-1-ene epoxides and their conversion to [n.1]metacyclophanes [PDF]

open access: yes, 2017
A series of syn- and anti-[2.n]metacyclophan-1-enes have been prepared in good yields by McMurry cyclizations of 1,n-bis(5-tert-butyl-3-formyl-2-methoxyphenyl)alkanes.
Akther, Thamina   +7 more
core   +1 more source

Single-stage sealing of ceramic tiles by means of high power diode laser radiation [PDF]

open access: yes, 2001
An investigation has been carried out using a 60 W high power diode laser (HPDL) to determine the feasibility of sealing the void between adjoining ceramic tiles with a specially developed grout material.
A. W. Gale   +27 more
core   +1 more source

CRYSTAL STRUCTURE OF PICRIAFELTARRAGENIN EPOXY COMPOUND

open access: yesActa Physica Sinica, 1981
Single crystals of picriafeltarragenin epoxy compound, C30H44O6, belong to space group P(212121) with lattice parameters a =28.373 (9)?, b=10.667 (5)?, c = 9.115 (4)? and 4 molecules in the unit cell. The intensities of 2890 independent reflectionsau collected using the PW-1100 fourcircle diffractometer.
Fan Hai-Fu, Han Fu-Sen, Zheng Qi-Tai
openaire   +2 more sources

Two New Oxodolastane Diterpenes from the Jamaican Macroalga Canistrocarpus cervicornis

open access: yesMarine Drugs, 2017
The chemical investigation of the organic extract of Canistrocarpus cervicornis, collected at Drunken Man’s Cay at Port Royal, Jamaica, has led to the isolation of two new dolastane diterpenes 4R-acetoxy-8S,9S-epoxy-14S-hydroxy-7-oxodolastane (1) and 4R ...
Sanjay Campbell   +3 more
doaj   +1 more source

1H NMR Study of the In Vitro Digestion of Highly Oxidized Soybean Oil and the Effect of the Presence of Ovalbumin

open access: yesFoods, 2021
Oxidized lipids containing a wide variety of potentially toxic compounds can be ingested through diet. However, their transformations during digestion are little known, despite this knowledge being essential in understanding their impact on human health.
Ana S. Martin-Rubio   +3 more
doaj   +1 more source

Bacteriostatic conformal coating and methods of application Patent [PDF]

open access: yes, 1970
Development of bacteriostatic conformal coating and methods of ...
Bland, C., Le Doux, F. N.
core   +1 more source

Recent advances in bio-based polymers and composites: Preface to the BiPoCo 2012 Special Section [PDF]

open access: yes, 2013
The increasing environmental awareness of the society has become an important factor in recent decades affecting legislation, commerce and industry as well as research and development to a great extent [1-7]. This tendency has also been recognized by the
Imre, Balázs, Pukánszky, Béla
core   +1 more source

Apolar Annonaceous Acetogenins from the Fruit Pulp of Annona muricata

open access: yesMolecules, 2009
A methylene chloride extract of the pulp of Annona muricata L. was fractionated in search for scarcely functionalized Annonaceous acetogenins (type E).
Pierre Champy   +3 more
doaj   +1 more source

Ionic Conjugated Microporous Polymers for Cycloaddition of Carbon Dioxide to Epoxides

open access: yesMacromolecular Materials and Engineering
Along the development of ionic porous organic polymers, simple and efficient synthetic methods are actively pursued. Herein, the Debus–Radziszewski reaction is applied to synthesize ionic conjugated microporous polymers (iCMPs) in one step.
Xiang Lin   +5 more
doaj   +1 more source

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