Results 11 to 20 of about 836,969 (319)
Biomarkers in fossil resins and their palaeoecological significance
J. Pańczak +2 more
semanticscholar +2 more sources
Microbes in Resinous Habitats: A Compilation from Modern and Fossil Resins
Amber can be considered as a window into the past allowing insights into the palaeoecology of Mesozoic and Cenozoic woodlands. Insects, spiders, fragments of higher plants and even small vertebrates were trapped by resins of conifers and angiosperms of the ancient “amber forests”.
C. Beimforde, A. Schmidt
semanticscholar +3 more sources
The cortices of pieces of Cretaceous amber around the world commonly are constituted by networks of filamentous structures. Based on their morphological characteristics, such structures have previously been classified in different microorganismal groups.
M. SPERANZA +3 more
doaj +2 more sources
Research on self-healing photocurable 3D-printed conductive polycaprolactone-based composites [PDF]
The overexploitation of fossil resources and increasing environmental concerns have made the development of sustainable material systems an imperative. Although vat photopolymerization 3D printing allows precise shaping and minimizes material waste, it ...
Zhiwei Liu, Yanchao Liu
doaj +2 more sources
Bibliometric Review of State-of-the-art Research on Microbial Oils’ Use for Biobased Epoxy
Epoxy resins are widely used polymers from which a variety of products are derived and applied in many industries. Most epoxy resins are still obtained from mainly fossil feedstocks, such as epichlorohydrin and bisphenol A, which are also highly toxic ...
Feofilovs Maksims +2 more
doaj +1 more source
To synthesize resins with oxygen-containing functional groups the C9 fractions of hydrocarbon pyrolysis, heavy gasoline, and light coal tar fraction obtained from coal coking liquid products (CCLP) were used.
Y. Prysiazhnyi +4 more
semanticscholar +1 more source
Process Superstructure Optimization for Resin and Aromatic Monomer Production from Kraft Lignin
Kraft lignin conversion to value-added products is an alternative way to manage the main pulp and paper secondary stream thus contributing to reducing avoid greenhouse gas emissions compared to equivalent fossil-based processes.
Christos Galanopoulos +4 more
doaj +1 more source
Challenges encountered during acid resin transfer preparation of fossil fish from Monte Bolca, Italy [PDF]
Copyright: Palaeontological Association May 2015. This is an open access article, available to all readers online, published under a creative commons licensing (https://creativecommons.org/licenses/by/4.0/). The file attached is the published version
Allington-Jones, L, Graham, M
core +1 more source
Fossil Resins–Constraints from Portable and Laboratory Near-infrared Raman Spectrometers
Comparative studies of fossil resins of various ages, botanical sources, geological environments, and provenience were provided via a handheld portable Near-Infrared (NIR)-Raman spectrometer and benchtop instrument both working with laser line 1064 nm ...
Beata Naglik +6 more
semanticscholar +1 more source
A review of amber and copal occurrences in Africa and their paleontological significance
The paleontological interest for fossil plant resins (amber and copal) has greatly increased in the last decades, as field studies have resulted in the discovery of various new deposits worldwide.
Bouju Valentine, Perrichot Vincent
doaj +1 more source

