搜索结果: 31-40 共查到“理学 developed”相关记录40条 . 查询时间(0.06 秒)
Nonlinear Optical Properties of Some Newly Developed Crystals for Measurement of Ultrafast Laser Pulses
Second harmonic generation Vacuum ultraviolet generation Ultrafast pulse Measurement
2010/10/13
Second harmonic generation (SHG) in nonlinear optical crystal is well-established technique for the measurement of the pulse-width of ultrafast femtosecond laser pulses. However, only selected nonline...
Role of wetlands and developed land use on dissolved organic nitrogen concentrations and DON/TDN in northeastern U.S. rivers and streams
Role of wetlands developed land dissolved organic nitrogen concentrations DON/TDN northeastern U.S. rivers and streams
2014/5/19
Previous studies have shown that watersheds with significant human development (i.e., urban and agricultural land use) generally have higher concentrations and fluxes of dissolved inorganic nitrogen (...
Description and Characterization of a ECR Plasma Device Developed for Thin Film Deposition
a ECR Plasma Device Thin Film Deposition
2010/10/27
The design, construction, and characterization of an electron-cyclotron-resonance (ECR) plasma device and its utilization for growing AlN polycrystals are described in detail. The plasma density and e...
Effect of the Zn Concentration on the Characteristic Parameters of ZnxCd1 - xS Thin Films Developed by Spraying Pyrolysis Method Under the Nitrogen Atmosphere
Spray Pyrolysis Thin Film ZnCdS
2010/4/13
The electronic and optical properties of ZnxCd (1- x)S thin films (0.0 \le x \le 0.7) fabricated using the chemical spray method have been investigated in nitrogen atmosphere. The films are deposited ...
Determination of the Trapping Parameters of ZnS Thin Films Developed by Chemical Spraying Technique
Thermoluminescence Trapping Parameters ZnS
2010/4/13
In this study, the thermoluminescence (TL) glow curves of ZnS thin films developed using chemical spraying technique were carefully investigated and its kinetic parameters were determined with a speci...
The Investigation of the Thermoluminescence Emission Bands of LiF:Mg,Ti (TLD-100) by a Simple Developed Model
Thermoluminescence LiF.Mg,Ti TLD-100 Emission Band
2010/4/15
In this study, a new simple model based on the classical treatment of lattice vibrations and the Franck-Condon principle is developed to describe the shape of thermoluminescence (TL) emission bands of...
Pedogenic Formation of Kaolinite-Smectite Mixed Layers in a Soil Toposequence Developed from Basaltic Parent Material in Sardinia (Italy)
Basaltic Rock (Weathering) Kaolinite-Smectite Mixed Layers Sardinia Smectite-Layer Charge Soils
2011/12/7
Abstract: Formation of kaolinite-smectite (K-S) mixed layers in a soil toposequence developed from basaltic parent material was examined. The soil formed in a temperate climate with alternating dry an...
Iron Oxides in a Soil Developed from Basalt
Hematite Ilmenite Maghemite Magnetic Fraction Mossbauer Spinel
2011/12/8
Abstract: A dusky red Oxisol forming on a tholeiitic basalt is found to contain varying proportion of aluminous hematite (Hm) and titanoaluminous maghemite (Mh) in the different size fractions. Maghem...
Hematite and Goethite from Duricrusts Developed by Lateritic Chemical Weathering of Precambrian Banded Iron Formations, Minas Gerais, Brazil
Hematite Goethite Laterite Mossbauer Spectrometry
2011/12/1
Abstract: The upper 15–20 m of a 200 m thick lateritic weathering profile on Precambrian itabirites of Capanema, Brazil, reveals a genetic pathway for the formation of hematitic and goethitic nodules ...
Characterization and Genetic Interpretation of Clays in an Acid Brown Soil (Dystrochrept) Developed in a Granitic Saprolite
Soil clays Weathering Soil vermiculite Soil smectite Hydroxy-Al intergrades Chlorite Dystrochrept
2012/1/4
X-ray diffraction and chemical analyses were performed on clay fractions separated from an acid brown soil (Dystrochrept) by means of size fractionations using high-gradient magnetic separation techni...
