Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: September 2018
Authors: Joice Ferreira de Queiroz, Aline Souza Herrero, Marco Antonio Utrera Martines, Alberto Adriano Cavalheiro, Lincoln Carlos Silva de Oliveira, Silvanice Aparecida Lopes dos Santos
This proposition is based on mechanism involved in photocatalytic effect because the electron-hole pair is more easily recombined in defect free structures.
The divalent zinc insertion can creates permanent positive hole in anatase structure, which can aids the oxidation reaction of hydroxyl ions originated from ionic product of water in order to increasing the hydroxyl radical concentration in reactive media.
The R-F index is a Rietveld index associated to correlation between the theoretical and experimental structures.
Schiavello: Physical Chemistry Vol. 94 (1990), p. 829
[22] ICSD - Inorganic Crystal Structure Database.
Online since: March 2022
Authors: Takron Chantadee, Setthapong Senarat, Jongjan Mahadlek, Chatchai Chinpaisal
The primary structure former of solvent in exchanged-based in situ forming matrix can also be aqueous insoluble materials such as saturated fatty acids which is suitable for use in local infection treatment such as crevicular pocket and knee joint owing to their chemical stability, reversible solid-liquid phase transition, biocompatibility, biodegradability, and inherent antibacterial activity [8, 9].
However, simple and small fatty acid structure, which had lower inter/intra-molecular interactions, exhibited notably low viscosity compared to the bulky polymer solution [23].
The physical chemistry of lipids: from alkanes to phospholipids.
Matsuzawa, Dynamical dimer structure and liquid structure of fatty acids in their binary liquid mixture: decanoic/octadecanoic acid and decanoic/dodecanoic acid systems, Chem.
Online since: August 2013
Authors: Ya Lin Lei, Chun Yan He
In the previous literature, most studies have generally focused on the physics and chemistry of REs and their applications.
Wang (2010) measures China’s RE Concentration Ratio (CRn) according to the RE market structure and policies based on price mechanism theory and then offers the causes of lacks in China’s RE pricing power [8].
Sun (2008) [16], on the basis of the analysis and manage the foundation structure and form about RE among the market of manufacturer, trade medium and consumer, the pricing mechanism and the reason of the pricing power imperfection are explained.
Pan (2012) sets up a simplified theoretical model of three-layer structure, i.e. environmental effect comprehensive decision model of RE export control [30].
From assessment methods, researchers can study this item by means of the building of a systematic criteria evaluation structure including a series of effect factors as the criteria of the assessment system.
Online since: August 2011
Authors: Hui Yang, Ke Wei Xu, Fei Fei Huang
Rokita found the relationship between the preferential orientation of crystals and the mechanical loading of the structure [1].
It was reported that the impacts of anionic substituents in HA on the structure and properties of natural and synthetic calcium apatites are obvious.
Veiderma et al. reviewed the results of the authors on single and coupled substitutions of F for OH, and of CO32- and SO42- for PO43- in synthetic and natural apatites, their influence on apatite structure and properties, studied by peak fitting FTIR, XRD, TG/DTA and TG/EGA methods [8].
HA crystal can be stabilized by contracting the lattice space and changing its structure parameter.
Journal of Organometallic Chemistry Vol.690 (2005), p 2638 [9] E.
Online since: October 2010
Authors: Jia Yu Zeng, Yu Xian Wang, Fu Rong Liu, Dong Xia Zhang, Yun Pu Wang, Shi Qi Liao, Wei Bo Zhang
The structure of synthesized PAnI is characterized by FT-IR, X-ray photoelectron spectroscopy, thermo-gravimetric analysis and cyclic voltammetry etc.
Herein we observed a larger polydispersity of the polymer, it is possibly due to the polymerization reaction involved free radical initiation, the free radical polymerization lead to the complexity of the polymer structure.
The origin of the higher decomposition temperature mainly results from the structure stability of synthesized PAnI.
The analysis of the properties and the structure of PAnI were carried out by FT-IR, X-ray photoelectron spectroscopy, Thermo-gravimetric Analysis and Cyclic Voltammetry etc.
Journal of Polymer Science Part A: Polymer Chemistry 1989, 27(13): 4351-4363.
Online since: July 2010
Authors: Emad A. Badawi, M.A. Abdel-Rahman, Yahia A. Lotfy, Alaa El-Deen, Alaa El-Deen A. El-Nahhas
Positron annihilation spectroscopy Positron annihilation spectroscopy (PAS) may be considered to be a method for studying the electronic structure, determining the structure, nature, and concentration of point and extended defects, and investigating the disrupted surface layers and surface states in metals, alloys, semiconductors, ionic crystals, and other substances that have firmly established themselves in the physics and chemistry of solids.
Positron annihilation spectroscopy (PAS) may be considered as a method for studying the electronic structure, determining the structure, nature, and concentration of point and extended defects.
Online since: October 2014
Authors: Liang Liang Huang, Hui Min Meng, Jing Tang, Sen Li, Ze Qin Yu
The crystal structure and coordination polyhedron structure of Y3Al5O12 showed in Fig 4.
The DCL structure is a promising design of TBCs and it will replace the conventional structure system of TBCs.
Structure of LaTi2Al9O19 and reanalysis of the crystal structure of La3Ti5Al15O37[J].
Crystal morphology of magnetoplumbite structure LaMgAl11O19[J].
Cation distribution and crystal chemistry of Y3Al5-xGaxO12 (0≤x≤5) garnet solid solutions[J].
Online since: December 2023
Authors: Diego Mantovani, Pascale Chevallier, Gabriel Morand, Michael Tatoulian, Rafik Naccache
Carbon Dots Release from Biodegradable Coatings Deposited by Aerosol-Assisted Open-Air Plasma MORAND Gabriel1,2,a, CHEVALLIER Pascale1,b, NACCACHE Rafik3,c, TATOULIAN Michael2,d and MANTOVANI Diego1,e* 1Laboratory for Biomaterials and Bioengineering, Department of Min-Met-Materials Engineering, Laval University & University Hospital Research Center, Quebec City, G1V 0A6, Canada 2Institut de Recherche de Chimie Paris, Chimie ParisTech, Paris Sciences & Lettres University, CNRS, UMR-8247, Paris, France 3Department of Chemistry and Biochemistry, Center for NanoScience Research, Concordia University, Montreal, Canada agabriel.morand@chimieparistech.psl.eu, bpascale.chevallier@crchudequebec.ulaval.ca, crafik.naccache@concordia.ca, dmichael.tatoulian@chimieparistech.psl.eu, ediego.mantovani@gmn.ulaval.ca Keywords: Aerosol-assisted plasma deposition, open-air plasma, carbon dots, composite biodegradable coating, controlled release.
The structure, composition, wettability, and biodegradation of these coatings depend on the precursors used, here methacrylic anhydride and ethylene glycol di-methacrylate.
These results show that the polymerization of MA and EGDMA by the vinyl groups is efficient, while preserving the main structure of precursors, especially their respective hydrolysable functions, anhydride and ester.
Online since: February 2026
Authors: Zouheir Bitar, Alexandra Alkhatib
Doping affects the electronic structure of NiO nanoparticles [33].
This behavior is primarily due to the different effects of dopant interactions on charge transportation, polarization mechanism, and defect chemistry in the NiO lattice.
Kim, Effect of Cu Doping on the Crystal Structure of (Ru1−xCux)(Sr1.47Ba0.2Nd0.33)(NdCe)Cu2O10−δ, J.
Zhao, Cu doping effect on the structure and charge transport behavior of Nd5/3Sr1/3NiO4, Phys.
Gao, Chemical Defects and Impurities Introduce Charge Traps to Silicone Rubber: a Quantum Chemistry Study, J.
Online since: November 2020
Authors: Min Zhong, Ying Xi Niu, Hai Ying Cheng, Chen Xi Yan, Zhi Yuan Liu, Dong Bo Song
(a) (b) Fig.1 (a) AlGaN/GaN HEMT device structure; (b) AlGaN/GaN HEMT band structure. 1.
The corresponding device structure is shown in Fig.2.
Fig.2 (a) Recessed gate HEMT device structure; (b) F- implantation technology HMET device structure; (c) p-GaN gate structure HEMT device structure; (d)Cascode HEMT device structure. 2.1 Recessed gate structure The recessed gate structure is formed by etching the under-gate AlGaN barrier layer, which only reduces the polarization charge density under the gate and does not affect the channel charge as much as possible, and realizes the enhanced function of the device while ensuring a higher output current.
The structure of the device is shown in Fig.2 (d).
Rajagopal, Selective etching of GaN over AlN using an inductively coupled plasma and an O2/Cl2/Ar chemistry, J.