Results 91 to 100 of about 94,428 (211)

Use of Larch, Spruce and Pine Cones as Unconventional Sorbents for Removal of Reactive Black 5 and Basic Red 46 Dyes from Aqueous Solutions

open access: yesMolecules
This study investigated the sorption properties of the biomass of larch (LaC), pine (PiC) and spruce cones (SpC) in relation to the anionic dye Reactive Black 5 (RB5) and cationic Basic Red 46 (BR46). The scope of the study included the properties of the
Tomasz Jóźwiak   +3 more
doaj   +1 more source

Volume, cones e cilindros - Parte II

open access: yes, 2016
Ensino Médio::MatemáticaAntônio e Mariana são colegas de escola e na hora do lanche seu João, dono da cantina, lhes faz um desafio: em que tipo de copo é necessário menos liquido para atingir metade da sua altura, o cônico ou o cilíndrico? Caso acertem o
Martins, Lourival Pereira   +6 more
core  

Asymptotically CAT(0) Groups

open access: yes
We develop a general theory for asymptotically CAT(0) groups; these are groups acting geometrically on a geodesic space, all of whose asymptotic cones are CAT(0)
Kar, Aditi
core  

Update and reassessment of the Miocene carpological flora from the Turów open pit mine of SW Poland and its palaeoenvironmental implications

open access: yesActa Palaeobotanica
One of the largest and best known, but never completely investigated, fossil carpological floras of the Zittau Basin is revised. The list of revised taxa is supplemented with materials left by H. Czeczott and her team, and newly collected specimens.
Rafał Kowalski   +2 more
doaj   +1 more source

“Cone-in-Cone.” [PDF]

open access: yesGeological Magazine, 1886
openaire   +1 more source

Permineralized Pine Cones from the Cretaceous of Vancouver Island, British Columbia

open access: yes, 2002
Two abraded, cylindrical cone specimens found in calcareous concretions from the Cretaceous Spray Formation (Late Campanian) of Vancouver Island, British Columbia, were sectioned using the cellulose acetate peel technique and characterized anatomically ...
Smith, S.Y., Stockey, R.A.
core   +1 more source

Nano-Cones Formation on a Surface of Si1-xGex Layers by Laser Radiation

open access: yes
The study of self-assembling nano-cones induced by irradiation of nanosecond Nd:YAG laser pulses on a surface of a Si1-xGex solid solution is reported.
Lytovich, K   +3 more
core  

Theodore Roosevelt and two of his Rough Riders in front of Mission Concepcion, 1898

open access: yes, 1898
Halftone reproduction of photograph showing Theodore Roosevelt (center) and two of his Rough Riders, all on horseback, on road in front of Mission Concepcion.''This old picture, from a copy of Leslie's Weekly, May 26, 1898...was made...while Theodore ...
Cones, Jack.
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Optical Properties of Quantum Cones Formation in Semiconductors by Laser Radiation

open access: yes
Quantum cones on the surface of elementary semiconductors Si and Ge single crystals, and on a surface of Si1-xGex (x=0.3 and x=0.4) and Cd1-xZnxTe (x=0.1) solid solutions were formed by fundamental frequency and second harmonic of Nd:YAG laser radiation.
Medvids, Artūrs, Onufrijevs, Pāvels
core  

Optical Properties of Quantum Cones Formed in Semiconductors by Laser Radiation

open access: yes
Nowadays, nanostructures are one of the most investigated objects in semiconductor physics, especially due to Quantum confinement effect in quantum dots (0D), quantum wires (1D) and quantum wells (2D).
Mičko, Aleksandrs   +2 more
core  

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