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Online since: March 2022
Authors: Siti Nooraya Mohd Tawil, Khadijah Ismail, Siti Nurazlina Zaidi
Nanocomposite solutions are further characterised in order to obtain suitable nanocomposite ratio and number of coating layers on fabric substrate.
Later, suitable ratio of nanocomposite, and the number of coating layer are determined for sensor fabrication.
The aggregation of polymer chains further reduces charge barriers between grains, leading to increased conductivity.
Besides, increasing number of coating layers on fabric substrate, is not affecting the pattern of XRD spectra, as the peaks observed on the spectra of all coating layers are seen at the same degree.
Singh, “Determination of crystallite size, number of graphene layers and defect density of graphene oxide (GO) and reduced graphene oxide (RGO),” in AIP Conference Proceedings, 2019, vol. 2115, doi: 10.1063/1.5112945
Online since: June 2012
Authors: Bruna Barra, Bergo Paulo, Clodomiro Alves Junior, Holmer Savastano Junior, Khosrow Ghavami
In other words, the number of electrons equals the number of ions [29].
As the diameter increases there is a greater possibility of variations in the number of unitary cells, changing structural parameters such as helix angle, volume of constituent cells and number of defects (Table 4).
Table 5 Tukey test applied to the comparison of average tensile strengths of sisal fiber under different times of exposition to the methane cold plasma Condition Tensile strength (MPa) Reference (no treatment) 197 a 10 min 278 b c d 20 min 208 a e 30 min 230 a e ** Numbers followed by the same letter have no significant difference between them at 5% of probability Sao et al. [37] and Rowell et al. apud Martin [36] stated that the mechanical properties of the lignocellulosic fibers are directly related to the crystallinity index (Ci).
Morsing, Densification of wood – the influence of hygrothermal treatment on compression of beech perpendicular to the grain, Tesis (Doctorate), Technical University of Denmark, 2000
Online since: November 2005
Authors: Klaus Hulka, Joachim Schöttler, V. Flaxa
As conventional enamelling steels acquire their fish-scale resistance only after cold rolling by cracking cementite that is precipitated at grain boundaries, the suitability of hot-rolled steel sheets for doubleface enamelling is another goal for which no adequate solution has been found yet.
The frequency of fish-scale appearance on the enamel surface (left numbers: from 1/excellent to 5/very poor) and the measured hydrogen permeation time (right numbers) is given in Table 3 for the hot-rolled sheets after all five hot rolling regimes.
Results of precipitation analysis in hot-rolled sheets of three selected steel grades alloying concept fish-scale resistance hot-rolled sheet total area fraction of precipitates mean value of l/t microsections [%] mean area of precipitates mean value of l/t microsections [µm²] amount of precipitates per mm² area mean value of l/t microsections main precipitates further precipitates (l/t = longitudinal/transverse directions) 0.98 2.71 1.30 822 441 119 excellent poor poor 0.080 0.115 0.017 (Ti,Nb)FeP B traces N-traces B-traces AlN TiS MnS Ti(C,N) NbC Al2O3 Al2O3 MnS MnO NbC ZrO2 MnS Al2O3 ZrS Ti - Nb - S - N - B Nb - N - B - O Zr Steel 5 Steel 6 Steel 8 Steel No.5 with excellent fish-scale resistance shows a large number and a great variety of very fine precipitates in the form of titanium sulphides, titanium carbosulphides, titanium nitrides and manganese sulphides with a mean area of < 1 µm².
In most cases, cold-rolling leads to an increase in the number of precipitations per unit area, together with a reduction in the average particle size.
In most cases, cold-rolling leads to an increase in the number of precipitations per unit area, together with a reduction in the average particle size.
Online since: August 2013
Authors: S.M. Darwish, A.M. El-Tamimi, A.M. Al-Ahmari, Basem M.A. Abdo
RUM, shown in Fig. 1, is recognized as a reliable and cost effective machining method that is being applied in a number of critical engineering applications [1-3].
The grain size of the diamond was 16.2 nanometers.
Taguchi orthogonal array were used to reduce the number of experimental combinations [12], which will result in cost savings due to the expensive diamond tools.
Taguchi L27 orthogonal array was used as the experimental layout of the milling process because it can accommodate up to a maximum number of five 3-level factors with 26 degrees of freedom.
Ypredicted=Ym+i=1k(Yi-Ym) (6) Table 8: Optimal levels for Fz and MRR Response Optimal Levels A (rpm) B (%) C (kHz) D (mm/min E (mm) Fz 2000 50 20 50 0.025 MRR 6000 50 21.5 150 0.075 Where Ym is the total mean S/N ratio, Yi is the mean S/N ratio at the optimal level, and k is the number of the main design parameters that affect the quality characteristic, [17].
Online since: February 2011
Authors: Jian Chun Jiang, Tong Qing Wang
After researching the structure and the development trend of the HMP, this paper presents a multi-master model real-time operating system architecture for HMP, which is designed with symmetric structure and functional modularization, and every kernel can manage resources, tasks and other shared devices as a master to improve the real-time and efficiency performance, to solve the bottle-neck problem that the single master can not satisfy the requirement of performance with increasing of the slave number.
Whereas, as the number of slaves increases, the objects that the master manages also increase, the master must do all the actions sequentially, such as task scheduling, resources management and etc.
Nevertheless, in multi-master model, this problem can be solved through taking fine-grained synchronization locks [7] to realize parallel accessing the different units in shared queues and linked lists, to improve scheduling efficiency.
Online since: September 2014
Authors: Shao Jun Fu, Huan Feng Qiu
The existence of an arching zone around pile groups for granular and fine-grained soils is first examined using the finite element computer code CORE-3D.
Ng et al. (2001) studied the influence of laterally loaded sleeved piles and pile groups on slope stability and the mechanisms of load transfering from the piles to the slope; The study by Chen and Martin (2002) revealed that the formation and shape of the arching zone are the functions of pile arrangement, relative pile/soil displacement, pile shape, interface roughness, and soil dilation angle; Martin and Chen (2005) investigated the response of piles due to lateral slope movement by using the FLAC(3D) program; El Sawwaf (2008) studied the group configurations, pile spacing, embedment length of pile, relative densities of sand, and location of pile groups relative to the slope crest using model tests; Kourkoulis et al. (2011) derived a number of insights concerning the factors influencing the response of piles and pile-groups; Li et al. (2011) presented an analytic solution to soil arching effect.
Fig. 6 Relationship of arching coefficient with the length, the diameter and the spacing of pile from the numerical analysis Considering the curves in Fig.6, a number of conclusions can be drawn about the arching coefficient can be obtained: From the top of pile to the bottom of the soil layer, the arching coefficient decreases gradually; While the diameter of pile is held constant at a value of 2.5m, the arching coefficient increases with the increasing spacing between the piles gradually; While the spacing of pile remains at a constant value of 5.0m, the arching coefficient decreases with the reduction of the diameter of pile.
Online since: January 2008
Authors: Paolo Valentini, Traian Dumitrica
It was experimentally noted that the deposited structures largely retain the grain size of the impacting nanoparticles.
Almost 90% of the atoms are initially 4-fold coordinated, as expected since most of the particle has a cubic diamond structure; however, during the impact, the fraction of atoms having a higher coordination number (up to 7) increases rapidly, and at around 20 ps more than 40% of the particle is made up of atoms with a coordination number between 5 and 7, with less than 15% of the atoms having only 4 nearest neighbors.
Note that the βtin phase is characterized by a coordination number of 6.
Time evolution of the number of neighbors for impact at vp=2200 m/s.
This work was supported by NIRT-NSF CTS-0506748 and by the MRSEC-NSF under Award Number DMR-0212302.
Online since: December 2012
Authors: Hao Ming Wang, Hui Chao He, Zi Qiang Wang
The evaluation results showed that the variety number of high tolerance grade 1 and 2 are 393 and 614 respectively.
The amino acid sequence of a number of PI is known including the Kunitz and Bowman-Birk inhibitors from soybeans, lima beans (Phaseolus lunatus L.) and common beans (Summerfield and Roberts 1985).
TIs have been proven to act as protective agents against insect attack and their involvement in wound responses is currently receiving attention in a number of species.
Legume seeds contain a number of non-protein ANCs with significantly different structures and effects.
Grain legume crops, Collins
Online since: August 2014
Authors: Michal Cehlár, Ján Mendel, Róbert Tutko, Dušan Kudelas, Zuzana Jurkasová
A number of developed countries use this source quite substantially, e.g. in Sweden and Austria 15 % of their primary energy consumption is covered by biomass.
According to the optimistic estimate is now qualified number incineration pellets at our limit of 1,000.
This number includes all types of boilers installed in the municipal sector and boilers and fireplace inserts installed in individual housing.
To the acquisition of advanced biomass and wood waste as fuel is essentially a number of options. 
However, the numbers say that the cost reduction and continuous interest in this fuel from wood waste predominate.
Online since: March 2023
Authors: M. Vijayanand, R. Varahamoorthi, P. Kumaradhas, S. Sivamani
Surfactants have a significant impact on the grain refinement, removal of hydrogen bubble during deposition, and brightening of deposits when employed in modest amounts [11].
The following training parameters were assigned: Maximum number of epochs:1000; Maximum time to train in seconds: infinity; Maximum number of epochs between displays: 25; Performance target: 0; Least performance gradient 10–7; and Maximum validation failures are 1000.
The required number of neurons in the hidden layer is determined by the performance function (MSE).
Equation depicts the universal BPNN model for the optimized number of neurons (1).
Sharma, Classification of Handwritten Devanagari Number – An analysis of Pattern Recognition Tool using Neural Network and CNN.
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