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Online since: March 2011
Authors: Yan Chyuan Wu, Ho Chang, Kung Ching Cho, He Jun Peng, Tien Li Chen
The temperature control system allows different cooling temperature settings, which contributes to grain nucleation and prohibits the growth of grains.
Figure 1 shows that L* is Lightness, which represents lightness value, and the numbers from high to low represent the lightness from light to dark. a* is the green/red axis, and the number from high to low represents the color from red to green. b* is the blue/yellow axis, and the number from high to low represents the color from yellow to blue.
Online since: April 2020
Authors: Ika Dewi Ana, Erlina Sih Mahanani, Indra Bachtiar
The number of cells attached to the scaffold was carried out using the dye exclusion method, namely by removing the cells attached to the scaffold using trypsin EDTA and then doing a cell count.
The synthetic coral scaffold also uses melting grains of ice which then the ice is removed by vacuum using freeze-drying.
The synthetic coral scaffold also uses melting grains of ice which then the ice is removed by vacuum using freeze-drying.
This reduces the surface area so that the number of cells is attached to the well base.
However, the size of the porosity that is too large will reduce the number of cell attachments.
Online since: June 2017
Authors: M.K. Teixeira de Brito, D.B. Teixeira de Almeida, L. Almeida Rocha, E. Santana de Lima, V.A. Barbosa de Oliveira, A.G. Barbosa de Lima
The analytical solution for this problem was first found in one dimension, and afterwards the one-dimensional solutions obtained for the x, y and z directions were multiplied, thus obtaining the three-dimensional solution as follows: (7) where, (8) (9) For obtain the eigenvalues , it was used the following mathematical relation, obtained by the boundary conditions at the surface of the solid: (10) in which n=1, 2,3... and, j=1, 2 and 3, and is the Biot number given by:
The deviation between the analytical and experimental results and the variance were obtained as follows: (17) (18) where n is the number of experimental points and the number of parameters fitted [22].
Hall, Drying and storage of grains and oilseeds, AVI Book, New York, 1992
Okos, Drying theories: their bases and limitations as applied to foods and grains, in: Mujumdar, A.
Online since: June 2011
Authors: Heather M. Volz, Robert E. Hackenberg, Pallas A. Papin, Ann M. Kelly, Robert T. Forsyth, Tim J. Tucker, Kester D. Clarke
(1) In Eq. 1, zs and Z are coordination numbers at the interface and in the bulk, respectively, which were set equal to one another.
No is Avogadro’s number and C is the regular solution constant for the g phase (estimated as C=2RTc, where R is the gas constant and Tc = 977ºC = 1250K [22].)
The number of atoms per unit area ns was taken as the average of those calculated for the likely habit planes of (111)g || (200)a [23].
Both the DP and DC initiated at prior g grain boundaries and U(C,N) inclusions.
An n value of 1 is expected for DP reactions initiating at grain boundaries with site saturation [24]; higher values are expected once the effect of initiation at U(C,N) inclusions is considered [4].
Online since: September 2018
Authors: Cristiano Stefano Mucsi, Maurilio Pereira Gomes, J.L. Rossi, Temístocles de Souza Luz, EVANDRO GIUSEPPE BETINI, Marcos Tadeu D'azeredo Orlando
The weldability of modern duplex stainless steel is satisfactory, although the heat affected zone and weld metal generally exhibit higher ferrite content and coarser grains than the original material.
During welding the austenite dissolves while been heated, it followed by grain growth in the delta ferrite region, and finally restoring to the austenitic phase during cooling [2,3].
First, for Figure 2 (a) the thermocouples number 1 (8 mm distant from the melting pool) and number 4 (10.5 mm) were placed closer to the weld bead where the temperatures were near to 360 °C and 350 °C, respectively.
Furthermore, the curves for thermocouples numbers 2 and 5 (distance of 13 mm) exhibits very close values for the temperature peaks since they were symmetric placed from the center of weld bead.
Online since: January 2022
Authors: Ying Liu, Zi Xin Liao, Xiao Hao Li, Ying Bin Xue, Zheng Wei Wu, Nai De Yang
After 20 days of cultivation at this concentration, the roots of soybean seedlings were developed, indicating that the main root length, lateral root length, and the number of lateral root was the best among all treatments, and the number of lateral roots was quite a few.
It is one of the most important economic crops of the legume family in the world and one of the important grain and oil crops in China.
(Bars=40.6 mm) Influence of Different Phosphorus Concentrations on Lateral Root Number of Soybean Seedlings.
The effect of different phosphorus concentrations on lateral root number of soybean seedlings was investigated.
When the concentration of phosphorus treatment was at 50-250 μmol/L on 20 days of culture, the maximum number of roots was 47.7-48.7.
Online since: November 2016
Authors: Ye Liu, Yun Yi Tang, Hengcheng Liao
After further aging at 300oC for 3h, a great number of fine ScAl3 particles are precipitated in the Al matrix, which leads to a considerable precipitation hardening effect, thus the strength and hardness are increased obviously.
It is known that ScAl3 particles formed during solidification can result in an outstanding grain refinement [1,5] and the ones formed in the course of heat treatment can lead to considerable strengthening effect [6,7] in Al-alloy systems.
A formula to describe the equilibrium concentration of vacancy in lattice is as following[12]: NV/N=exp (-QV/kT) (1) where NV stands for the equilibrium number of vacancies, N the total number of atomic sites, QV the energy required for the formation of a vacancy, T the absolute temperature in Kelvins, and k Boltzmann’s constant of 1.38×10-23J/atom-K.
After further aging at 300oC for 3h, a great number of fine ScAl3 particles are precipitated in the Al matrix, which leads to a considerable precipitation hardening effect, thus the strength and hardness are increased obviously.
(3) After further aging at 300oC for 3h, a great number of fine ScAl3 particles are precipitated in the Al matrix, which leads to a considerable precipitation hardening effect, thus the strength and hardness are increased obviously
Online since: November 2015
Authors: Y.P. Deepthi, K. Prakash Marimuthu, K. Raghavendra Ravi Kiran
Taguchi technique was employed to get optimum number of experiments for turning white cast iron after the cryogenic treatment and before cryogenic treatment.
M N Islam [6] concluded that precipitation and distribution of η phase after cryogenic treatment improves wear resistance and slight increase in grain size contributes to toughness.
Seah et al [8] implemented the cryogenic treatment on cobalt-bonded tungsten carbide (Co-WC) and reported superior behaviour because the number of η-phase particles has been increased.
Taguchi Design of experiments was used to design the optimum number of experiments.
The total number of experiments conducted were 36.
Online since: February 2014
Authors: Yong Ping Bai, Xiao Li Tao
Wetlands play a number of roles in the environment, which are also considered the most biologically diverse of all ecosystems.
The change pattern of wetland resources Amplitude of the dynamic changes of wetland resources available wetland changes, characterized by speed and changes in the number of regional differences, the degree of change of wetlands can be quantitatively describe the speed of change in wetlands, its relatively wetland resources change area Different and forecast the future trends of the wetlands have a positive meaning.
The wetlands dynamic calculation of the rate of change of a single wet Land resources can express the number of changes of some type in the area some time within the formula is expressed as: M = (Kb-Ka) / Ka * T Where Ka, Kb, respectively, for the study of the number of beginning and end of a particular type; T study period.
Spatial and temporal variations in sediment grain size in tidal wetlands, Yangtze Delta: On the role of physical and biotic controls Estuarine, Coastal and Shelf Science,2008, 77,pp.657-671
Online since: September 2011
Authors: Akio Segawa
Heating temperature are 1273[K] near sheet temperature before rolling in the actual hot rolling process, production the oxide scale is controlled by changing heating time and aging time, number of hot rolled sheets.
From the results, the crystal grain was seen in the scale surface before rolling, however, after rolling, a grain boundary is indistinct, moreover, although the unevenness was seen in the scale surface before rolling, the surface was made flat after rolling.
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