Results 111 to 120 of about 33,129 (274)

Determination of Chromite by X-ray Fluorescence Spectrometry with Sample Preparation of a Lower-Dilution Fusion

open access: yesYankuang ceshi, 2013
Chromite analysis is dominated by chemical analysis, which is a wel-established but complicated procedure. Chromite can also be analysed by X-ray Fluorescence Spectrometry (XRF), however, a high-dilution fusion is not conducive to low content elements ...
ZENG Jiang-ping   +4 more
doaj  

Comparison of isothermal and cyclic oxidation behavior of twenty-five commercial sheet alloys at 1150 C [PDF]

open access: yes
The cyclic and isothermal oxidation resistance of 25 high-temperature Ni-, Co-, and Fe-base sheet alloys after 100 hours in air at 1150 C was compared.
Barrett, C. A., Lowell, C. E.
core   +1 more source

Operasjon Chromite

open access: yes, 2016
Amfibielandsettingen i Inchon 15. september 1950 er kanskje det oftest benyttede eksempelet på suksessfull operasjonell manøver. General Douglas MacArthur snudde der en vanskelig situasjon for FN og de sør-koreanske styrkene i Pusan perimeteret til seier over den nord-koreanske arméen, og gjenopprettet grensen ved den 38. breddegrad i løpet av to uker.
Meyer, Eystein Lockwood, Ydstebø, Palle
openaire   +1 more source

Artificial meteor ablation studies: Olivine [PDF]

open access: yes
Artificial meteor ablation was performed on a Mg-rich olivine sample using an arc-heated plasma of ionized air. Experimental conditions simulated a meteor traveling about 12 km/sec at an altitude of 70 km.
Blanchard, M. B., Cunningham, G. G.
core   +1 more source

Isothermal and cyclic oxidation at 1000 and 1100 deg C of four nickel-base alloys: NASA-TRW VIA, B-1900, 713C, and 738X [PDF]

open access: yes
The isothermal and cyclic oxidation resistance of four cast Ni-base gamma + gamma prime alloys, NASA-TRW Via, B-1900, 713C, and 738X, was determined in still air at 1000 and 1100 C.
Barrett, C. A.   +2 more
core   +1 more source

Lunar sample analysis [PDF]

open access: yes
Results are presented from an extensive series of new high resolution scanning electron microscope studies of the very primative group of meteorites known as unequilibrated chondrites.
Cirlin, E. H.   +4 more
core   +1 more source

Formation and evolution of the chromitites of the Stillwater Complex : a trace element study [PDF]

open access: yes, 2011
Large layered intrusions, such as the Stillwater Complex, contain cyclic units of chromite-rich layers (cm to m thick) having kilometre-scale lateral extension.
Barnes, Sarah-Jane   +2 more
core   +1 more source

Determination of Anomaly Source Border Using Reweighting Focusing Inversion of Two-Dimensional Gravity Horizontal Gradient Data and Conventional Edge Detection Methods (Case Study: A Chromite Mass in Sabzevar, Iran)

open access: yesGeofísica Internacional
There are numerous methods to detect the edge of gravity and magnetic field anomaly source, most of which are based on the combination of first and second-order horizontal and vertical gradients of the potential field.
Mahsa Kabiri, Zohreh Sadat Riazi Rad
doaj   +1 more source

Resources for a lunar base: Rocks, minerals, and soil of the Moon [PDF]

open access: yes
The rocks and minerals of the Moon will be included among the raw materials used to construct a lunar base. The lunar regolith, the fragmental material present on the surface of the Moon, is composed mostly of disaggregated rocks and minerals, but also ...
Taylor, Lawrence A.
core   +1 more source

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