搜索结果: 1-15 共查到“知识库 理学 titanium”相关记录20条 . 查询时间(0.067 秒)
Application of titanium-in-quartz thermobarometry to greenschist facies veins and recrystallized quartzites in the Hsüehshan range, Taiwan
Accuracy reliability green schist facies rocks titanium concentration crystallization quartzite vein quartz snow-capped mountains
2015/1/5
The accuracy, reliability and best practises of Ti-in-quartz thermobarometry (TitaniQ) in greenschist facies rocks have not been established. To address these issues, we measured Ti concentrations in ...
Evidence for Correlated Titanium and Deuterium Depletion in the Galactic ISM
abundances abundances
2014/12/24
Current measurements indicate that the deuterium abundance in diffuse interstellar gas varies spatially by a factor of ~4 among sightlines extending beyond the Local Bubble. One plausible explanation ...
Modification of Nano-Titanium Dioxide Film and Processing Experimental Study of Tannery Waste Water
Modification Nano Meter Titanium Dioxide Photocatalysis Tannery Wastewater
2011/12/16
This paper was prepared by liquid phase deposition of quartz sand load nanometer titanium dioxide film, in which quartz sand as the carrier, and to Fe3+,Zn2+ as doping on the membrane was modified. Th...
First-principles Study on the Electronic Structure of Novel Titanium Yttrium Mixed-metal Nitride Clusterfullerene
TiY2N@C80 Electronic structure Doping Chemical modification First-principles calculation
2012/4/5
We present a first-principles study on the geometric, vibrational and electronic properties of a novel Y-based non-scandium mixed-metal nitride clusterfullerene (TiY2N@C80). Theoretical results indica...
Titanium-capped carbon chains as promising new hydrogen storage media
Titanium-capped carbon chains promising new hydrogen storage media
2010/11/23
The capacity of Ti-capped sp carbon atomic chains for use as hydrogen storage media is studied using first-principles density functional theory. The Ti atom is strongly attached at one end of the carb...
Nanocrystalline Titanium Oxide thin Films Prepared by Sol-Gel Process
Titanium oxide thin films Sol-gel process
2010/9/29
Crystalline films of pure titanium oxide have been prepared on soda lime slide glasses by sol-gel process and dip-coating. The definition of various parameters such as chemical concentration, viscosit...
Surface Characterization of Titanium Based Dental Implants
Titanium implants Dental implants Surface morphology
2010/9/29
The study of dental implant surfaces is relevant in order to better understand the interaction of the titanium
surface and the surrounding tissues. Clinical success is achieved not only because of im...
Triple Alkaline Treatment of Titanium Surfaces for Calcium Phosphates Growth
Titanium Calcium phosphates Titanite Calcium silicotitanate Coatings
2010/9/29
Titanium surface was chemically modified with sodium hydroxide, sodium silicate and calcium hydroxide with the purpose of improving metal prosthesis to bone adhesion. Results indicate that Ti modified...
High Conducting Nanowires Obtained From Uniform Titanium Covered Carbon Nanotubes
carbon nanotube titanium nanowire first principles ab initio
2010/4/12
We have shown that Ti atoms can form continuous coating of carbon nanotubes at different amount of coverage. The circular cross section changes to a square-like form, and the semiconducting tube becom...
The Effect of Silane Modification on the Adsorptive Properties of Natural Pyrophyllite and Synthetic Titanium-Based Powders Prepared by the Sol-Gel Process
Aminosilane coupling agents surface modification 4-nitrophenol adsorption
2010/4/20
Our aim was to improve the relatively poor adsorption characteristics of natural pyrophyllite and those of TiOm and Ti(OR)x(OH)y(O)z obtained from titanium tetraisopropoxide (TTIP) by the sol-gel proc...
Spectroscopic Measurements in a Titanium Vacuum Arc with Different Ambient Gases
Spectroscopic Measurements a Titanium Vacuum Arc Different Ambient Gases
2010/10/26
Spectral emission lines from a low pressure d-c arc discharge with a Ti cathode were studied in various ambient gases; N2, O2, and Ar. Light from the plasma was detected by an optical spectrometer mul...
Kinetics of Polymerization of 2-Hydroxyethylmethacrylate Initiated by a Titanium(III)-Dimethylglyoxime Redox System
Poly[2-hydoxyethylmethacrylate] Cyclic Voltammetry and Titanium(III)-Dimethylglyoxime
2010/4/21
Kinetics of Polymerization of 2-Hydroxyethylmethacrylate Initiated by a Titanium(III)-Dimethylglyoxime Redox System.
Synthesis, Structural and Thermal Studies of Titanium(IV) Complexes of N-Alkyl Phenothiazines
Synthesis Structural Thermal Studies Titanium(IV) Complexes N-Alkyl Phenothiazines
2010/6/29
New coordination compounds of the type [Ti(C2O4)2L]2H2O where L=N-alkyl phenothiazines (NAPs) were synthesised and characterised by elemental analyses, molar conductance, magnetic, thermal and spectra...
Using in measurements of the phonon frequencies of bcc Titanium, the lattice dynamical calculations are performed on the same phase by using the Third-neighbour Clark-Gazis-Wallis(CGW) model. The theo...
Extraction of Iron Oxides from Sediments Using Reductive Dissolution by Titanium(III)
Dissolution Dithionite Extraction Goethite Hematite Reduction Titanium(III)
2012/1/4
A new iron oxide dissolution method designed to measure the abundance of “free” Fe oxide phases and associated elements in soils and sediments has been tested. The method employs a ternary complex of ...