Results 111 to 120 of about 22,887 (225)

Three Dimensionally Interlinked, Dense, Solid Form of Single-Walled CNT Ropes [PDF]

open access: yes
A 3D networked, dense form of single-walled carbon nanotubes (SWNT) has been made through isotropic shrinking of a gel-like SWNT-water paste by very slow evaporation.
Smalley, Richard E.
core   +1 more source

Experiments on the production of a highly dispersible calcium carbonate. ('Experimental section' only) [Translation from: Szklo i Ceramiki 30, 133-136, 1979] [PDF]

open access: yes, 1986
This short translation summarises experiments on the production of a highly dispersible precipitate of calcium carbonate.
Domka, L.
core  

Interest of Jan Kowalczyk in the Mining of Flint Raw Materials

open access: yesArchaeologia Polona, 2019
Jan Kowalczyk exhibited great interest in the issues related to the prehistoric acquisition of flint raw materials and their working. He was involved in research and conservation issues at the turn of the 1950s and 1960s in the Neolithic and Early Bronze
Sławomir Sałaciński   +2 more
doaj   +1 more source

Vasagård – Causewayed and Palisade Enclosures of the Middle Neolithic TRB Culture on Bornholm

open access: yesJournal of Neolithic Archaeology
At the site Vasagård on the island of Bornholm a double causewayed enclo­sure dating from EN II to MN AIII is superseded by palisade enclosures con­structed from the beginning of MN AV and covering a larger area.
Poul Otto Nielsen   +2 more
doaj   +1 more source

The analysis of dieldrin residues in the brain, liver and muscles of the African catfish Clarias gariepinus (Burchell 1822) chronically exposed to dieldrin [PDF]

open access: yes, 1999
Mature adult Clarias gariepinus were obtained at the ABRU hatchery in Sonning (UK), where they had beenbred and reared for several years. These were exposed to two concentrations of dieldrin in water (2.4 mu g super(-1) and 4.0 mu g super(-1).
Eyo, A.A., Lamai, S.L.
core  

Preparation of substituted hydrazines [PDF]

open access: yes, 1952
Thesis (M.A.)--Boston UniversityAlthough a large number of substituted hydrazines are known, the preparation of simple monoalkylhydrazines in a manner suitable for the large-scale economical synthesis has never been developed.
Briggs, Richard Maurice
core  

Effect of Immobilization Method on Activity of Alpha-Amylase [PDF]

open access: yes, 2007
In this study, alpha-amylase is immobilized by surface binding or by physical entrapment using calcium alginate gel beads. The objectives are to compare the effects of immobilization method and the bead size on the activity of immobilized alpha-amylase.
Meyer, Lily
core  

Pottery spilled the beans: Patterns in the processing and consumption of dietary lipids in Central Germany from the Early Neolithic to the Bronze Age.

open access: yesPLoS ONE
The need to better understand economic change and the social uses of long-ago established pottery types to prepare and consume food has led to the study of 124 distinct ceramic vessels from 17 settlement and funerary sites in Central Germany (present day
Adrià Breu   +5 more
doaj   +1 more source

Enzymatic rettings of green pepper berries for white pepper production [PDF]

open access: yes, 2014
This study is carried out to determine the physical properties of green pepper berries and to improve the existing retting technique in white pepper production using the Viscozyme and Celluclast as the enzymes. Effects of blanched and non-blanched pepper
Chan, Shiang Chun, Shamsudin, Rosnah
core  

Plant Use by the Funnel Beaker Farmers in Poland. New Archaeobotanical Data From Pottery Sherds and Daub Imprints

open access: yesActa Universitatis Lodziensis: Folia Archaeologica
The article presents the results of archaeobotanical studies on plant macroremains preserved both in charred form and as imprints in pottery and daub. The materials were collected from Funnel Beaker culture sites in Kałdus, Sławęcinek, Kietrz, and Małe ...
Dominika Kofel, Kamil Adamczak
doaj   +1 more source

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