Materials Literature
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목적: 내부 연결형과 외부 연결형의 임플란트에서 직선형과 경사형 지르코니아 지대주의 파절강도를 비교하였다. 재료 및 방법: 내부육각 연결형 임플란트 20개와 외부육각 연결형 임플란트 20개에, 기성 직선형 지르코니아 지대주와, $17^{\circ}$ 경사형 지르코니아 지대주를 10개씩 체결하였다. 시편은 연결 방식과 지...
Rubric for evaluating the outline and the full DMPs required for NERC-funded research (available in xlsx and pdf format).
Ti, Ni, activated carbon, and Mo powders were used as raw materials to prepare a composite TiC cermet in this study. The powders were mixed and prepared through high-energy ball milling and then sintered in a spark plasma sintering (SPS) system. Results revealed that ball milling time affected the raw materials. After…
In recent years, the accelerator driven subcritical reactors have taken great interest worldwide. The Accelerator Driven System (ADS) has been used to produce neutron in subcritical state by the external proton beam source. These reactors, which are hybrid systems, are important in production of clean and safe energy…
In this work, an effective implicit surface model (EISM) is introduced, calibrated, and used to reproduce experimental and theoretical binding affinities of peptides to inorganic surfaces. Next, this model is used for theoretical peptide design. Also, an anlytical model explaining the binding process of peptides to ma…
The organic thin film transistor (OTFT) fabricated with the polypeptide as a dielectric layer shows memory function. In order to investigate the effect of polypeptide structure on the performance of non-volatile transistor memory, the Fourier-transform IR (FT- IR) and Circular Dichiroism (CD) spectral of PMLG film has…
Radon and thoron gases are produced by the decay of the radioactive elements those are radium and thorium in the soil. In this study, the correlations between soil radon and thoron concentration with their parent nuclide (226Ra and 232Th) concentrations in collected soil samples from the same locations were evaluated.…
Anatase phase TiO 2 (a-TiO 2 ) films have been deposited on MgAl 2 O 4 (111) substrates by the metal organic chemical vapor deposition (MOCVD) method at the substrate temperatures of 500-650°C. The structural analyses showed that the films were highly (004) oriented with tetragonal anatase structure and the epitaxial…
Using the method of crystallochemical analysis (the TOPOS program package), the 14 most promising and stable structures of lithium manganese (iron) silicate compounds have been selected based on the data on 132 experimentally received and predicted compounds (Materials Project resource).
Influence of the main components of decoking agent (magnesium nitrate, aluminum nitrate, copper nitrate, ammonium nitrate and actual decoking agent) on the activity of limestone is studied in laboratory by MET method. Results show that magnesium nitrate, ammonium nitrate and copper nitrate almost has no effect on the…
The anthropogenic carbon dioxide (CO2) emissions contribute to a larger extent on global climate change. There is a need for new technologies to mitigate this problem. Among the various CO2 capture technologies, the most suitable ones for post-combustion power plants is found to be adsorption and chemical absorption.…
The study synthesizes Co microspheres with perfect spherical shape by use hydrazine hydrate as reducing agent to reduce CoCl 2 in alkaline conditions at room temperature, the influence of NaOH addition amount on crystal morphology and structure of cobalt particle were studied. The results show that, under the conditio…
L shell and Li subshells ionization cross sections[σL and σLi i = 1, 2, 3 following electron impact on (Sc, Ti, V, Cr, Mn, Fe, Co, Ni) atoms calculated. By using Lotz’ equation for non-relativistic cases in Matlab σL and σLi cross section values obtained for ten electron impact(Eo) values in the range of ELi<Eo< 8ELi…
Gómez Rodríguez AM, Valderrama Valderrama LT, Rivera-Rondón CA. Comunidades de macrófitas en ríos andinos: composición y relación con factores ambientales. Acta biol. Colomb. 2017;22(1):45-58. DOI: http://dx.doi.org/10.15446/abc.v22n1.58478
Series of spontaneous magnetization jumps have been observed on the background of a continuous relaxation of the magnetic moment of a molecular ferrimagnet in a constant magnetic field. A statistical analysis of the set of data has demonstrated the presence of at least two modes in the distribution of magnetization re…
This work presents a new application for the Hierarchical Function Expansion Method for the solution of the Navier-Stokes equations for compressible fluids in two dimensions and in high velocity. This method is based on the finite elements method using the Petrov-Galerkin formulation, know as SUPG (Streamline Upwind P…
Mechanical conditioning has been shown to promote tissue formation in a wide variety of tissue engineering studies, but the underlying mechanisms by which external mechanical stimuli regulate cells and tissues are not fully understood. This is particularly relevant in the area of heart valve tissue engineering (HVTE)…
In this study, we investigated fundamental properties such as electrical and optical properties of the N,N′-Dioctyl-3,4,9,10 perylenedicarboximide (PTCDI-C8) Organic Semiconductor (OSC) material for optoelectronic and photonic applications. The important spectral parameters such as mass extinction coefficient and tran…
The present study is focused on the Cu doped ZnO and Ni doped ZnO dilute magnetic semiconductor thin films. ZnO:Cu and ZnO:Ni thin films were grown by Chemically Spray Pyrolysis (CSP) method on glass substrates. Optical analysis of the films was done spectral absorption and transmittance measurements by UV-Vis double…
L shell and L subshells ionization cross sections σL and σLi (i = 1, 2, 3) following electron impact on (N,O, F, Ne, Na, Mg, Al, Si) atoms calculated. By using Lotz’ equation for nonrelativistic cases in Matlab σL and σLi cross section values obtained for ten electron impact(Eo) values in the range of ELi<Eo<10ELi(but…