Results 41 to 50 of about 5,253,598 (403)
Multiple Twinning in Nacre and Aragonite
Advanced Functional Materials, EarlyView.Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt +7 more
wiley +1 more source
Colonial Geological Surveys [PDF]
Nature, 1944 IN his article on Colonial Geological Surveys in NATURE of March 4, Mr. V. A. Eyles gave a useful resume of recent discussions. There are, however, some further considerations to be noted. The figures he quoted from Sir Edmund Teale's paper of the results of mining operations, following upon the activities of Colonial Geological Surveys, do not include
openaire +3 more sources
Colorado Geological Survey [PDF]
The Colorado Geological Survey (CGS) is an agency of state government within the Department of Natural Resources whose mission is to help reduce the impact of geologic hazards on the citizens of Colorado, to promote the responsible economic development ...
core +2 more sources
, 2015 The U.S. Geological Survey’s Nonindigenous Aquatic Species (NAS) Database has tracked introductions of freshwater aquatic organisms in the United States for the past four decades.
P. Fuller, Matthew E. Neilson
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka +3 more
wiley +1 more source
Sir Henry Thomas De la Beche and the founding of the British Geological Survey [PDF]
, 2010 The founding of the Geological Survey by Henry De la Beche in 1835 is a key event in the history of British geology. Yet the Survey’s initiation actually began three years earlier when De la Beche secured financial assistance from the Board of Ordnance ...
Bate, David G.
core
From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage
Advanced Functional Materials, EarlyView.This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel +4 more
wiley +1 more source
Yankuang ceshi, 2021 BACKGROUND Carbon and oxygen isotopes in carbonates are commonly used in geology and climate studies. Reference materials for these isotopes are an important basis for analysis and data comparison.
HU Zhi-zhong +5 more
doaj +1 more source
Knowledge-based systems and geological survey [PDF]
, 2005 This personal and pragmatic review of the philosophy underpinning methods of geological surveying suggests that important influences of information technology have yet to make their impact.
Loudon, T.V.
core
Colloidal Crack Sintering Lithography for Light‐Induced Patterning of Particle Assemblies
Advanced Functional Materials, EarlyView.Colloidal crack sintering lithography (CCSL) is a microfabrication technique that uses light‐induced photothermal heating to trigger sintering and controlled cracking in polymer colloidal assemblies. Local structural changes generate microchannels and patterns, enabling direct writing of diverse topographic motifs.
Marius Schoettle +2 more
wiley +1 more source