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Online since: September 2007
Authors: Nicola Maria Pugno
Thus, referring to the equivalent homogeneous structure, for a solid beam with a nearly circular cross-section of diameter D (thus the problem of coincident eigenvalues is avoided) such as the investigated boron nanowires [8], the mechanical resonant frequency can be simplified to ρπ β bn n E L D f 2 2 8 = .
In contrast, for nearly defect free-structures Nanoscale Weibull Statistics [19] suggests to consider X=1, and F becomes independent from the fiber volume or surface.
Poncharal and W.A. de Heer: Pure and Applied Chemistry Vol. 72 (2000), p. 209
Online since: December 2013
Authors: Khairul Azly Zahan, Norhayati Pa’e, Kok Fook Seng, Ida Idayu Muhamad
Brown: “Cellulose Structure and Biosynthesis: What is on the store for the 21st Century”.
Journal of Polymer Science: Part A: Polymer Chemistry 42(3)(2004), p. 487-495
Mitsuhashi: “The structure and mechanical properties of sheets prepared from bacterial cellulose.
Online since: May 2013
Authors: Keya Dharamvir, Charanjit Singh, Preeti Singla, Sonal Singhal
Effect of Magnetic Field on the Growth of Aligned Carbon Nanotubes using a Metal Free Arc Discharge Method and their Purification Sonal Singhal*1,a, Charanjit Singh1,b, Preeti Singla1,c and Keya Dharamvir2,d 1Department of Chemistry, Panjab University, Chandigarh-160 014 2Department of Physics, Panjab University, Chandigarh-160 014 *asonal1174@gmail.com; bchinu.thapur@gmail.com; cpreetisingla21@gmail.com; dkeya@pu.ac.in Keywords: Arc discharge, Purification, Transmission Electron Microscope, Raman Spectroscopy.
Stobinski et al. [10] used a wet chemical purification method for purifying MWCNTs and reported the formation of bundled structure having diameters in the range 10-40 nm.
The lattice parameters have been determined using Powley and Le Bail refinement method and the values of ‘a’ and ‘c’ are 2.45 Ǻ and 6.75 Ǻ, respectively, corresponding to the hexagonal structure of graphite [15].
Online since: June 2012
Authors: Normando Perazzo Barbosa, Sandro Marden Torres, Primo Fernandes Filho, Romildo Henriques dos Anjos, Andressa de Araújo Vieira Porto
Center of Technology of Federal University of Paraíba, João Pessoa, Brazil 3Student at the Chemistry Department, Federal University of Paraíba, João Pessoa, Brazil 4Posdoc, Center of Technology of Federal University of Paraíba, João Pessoa, Brazil aprimo@ct.ufpb.br Keywords: sugar cane bagasse ash, solubility, silicate Abstract.
Arrows indicate ash like structures.
This indicates that the burning process of sugar cane bagasse was efficient in the sense that less fibrous like structure such as the organic parts of the bagasse is absent.
Online since: September 2018
Authors: Pavel Lejček, Dalibor Vojtech, Drahomír Dvorský, Michaela Fousova
Metallic Materials Prepared by Selective Laser Melting: Part Orientation Issue Michaela Fousova1,2,a, Drahomir Dvorsky1,2,b, Pavel Lejcek2,c and Dalibor Vojtech1,d 1Department of Metals and Corrosion Engineering, University of Chemistry and Technology Prague, Technicka 5, 166 28 Prague 6, Czech Republic. 2Institute of Physics, Academy of Sciences of the Czech Republic (AS CR), Na Slovance 1999/2, 182 21 Prague 8, Czech Republic.
Variances in elongation (A) and porosity with different orientation of samples Structure.
The differences in mechanical behaviour of samples of different orientations can be explained by their structure showing certain hierarchy.
Online since: November 2012
Authors: David W. Green, Matthew Padula, Jerran Santos, Joshua Chou, Bruce Milthorpe, Besim Ben-Nissan
Green1,a,Matthew Padula2,bJerran Santos2,cJoshua Chou3,c Bruce Milthorpe3,c,Besim Ben-Nissan3,c 1Biomedical and Tissue Engineering Group, Faculty of Dentistry, The University of Hong Kong, The Prince Philip Dental Hospital, 34, Hospital Road, Sai Ying Pun, Hong Kong 2Proteomics Core Facility,3Department of Chemistry and Forensic Science, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, AUSTRALIA.
The skeletal organic matrix in corals extends throughout the mineral structure as shown by both fluorescence tagged antibody localisation and acridine orange colorimetric staining [17].
It needs to be known that the functions of the surrogate invertebrate protein are identical to their human molecule counterpart, in structure and function.
Online since: September 2013
Authors: Lu Ming Ma, Jin Hong Fan, Xin Liu
The quartet structure of DMPO-OH adduct was shown in Fig.1(c).
This feature is matched with the structure of a typical ESR spectrum of ·OH.
Dean: Lange’s Handbook of Chemistry, 13th ed(McGraw Hill Publications, USA, 1985).
Online since: June 2018
Authors: Pavla Rovnaníková, Patrik Bayer, Martin Vyšvařil, Tomáš Žižlavský
In the case of cementous materials chitosan and its derivatives decrease the setting time, but also act as weak retarding agents (due to a saccharine structure), but the addition of chitosan has no noticeable effect on the compressive strength of prepared concrete specimen [13-17].
Chitin and chitosan polymers: Chemistry, solubility and fiber formation.
Effects of carbonation on the pore structure of non-hydraulic lime mortars.
Online since: January 2013
Authors: Xiao Hua Li, Yi Xi Cai, Kang Hua Li, Wen He Han, Yun Xi Shi, Xing Wei
The experimental apparatus consists of an air-supplying system, a temperature control system, a gas real-time monitoring system and a water-cooled NTP reactor of DBD type with coaxial cylindrical structure showed in Fig. 2.
Non-thermal Plasma reactor structure Experimental Results and Discussions Influence of peak voltage on NTP performance.
Plasma Chemistry and Plasma Processing, 2008, 28(2):173-187
Online since: November 2007
Authors: Yi Koan Hong, Chang Ki Hong, Young Jae Kang, Sang Yeob Han, Seong Kyu Yun, Bo Un Yoon, Jin Goo Park
It should be noted that SAC structure was consisted of poly Si, TEOS and SiN.
STI patterned wafer was expected to have cleaner surfaces than SAC structure due to low particle adhesion forces below 1 nN.
Gast, Physical Chemistry of Surfaces, pp.250-276, John Wiley & Son, Inc., New York (1997) .