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Online since: January 2021
Authors: V.A. Klimenko, A.V. Olisov, V.S. Bessmertniy, L. Bragina, Marina Bondarenko
Results After plasma treatment of fractionated broken glass, the grain composition of GMB was studied using the example of colorless container glass.
Grain composition of glass micro balls at plasma gas consumption: 0.00093 (а); 0.0116 (b); 0.00140 (c); 0.00163 (d) g/sec As it can be seen from figure 2, with an increase in the flow rate of plasma-forming gas from 0.00093 to 0.00163 g/sec, the number of fractions with a size of 80-320 microns increases, and the size of 630-1450 microns decreases.
The regularities of obtaining glass micro balls based on glass domestic waste, consisting in the influence of plasma-forming gas consumption on their grain composition, are established.
Online since: June 2013
Authors: Peng Li, Wei Peng, Jindong Zhou, Kuangnian He, Shuzhou Zhong, Xiaobing Zhong, Kehui Liu, Xue Gong Bi
The permeability at a location with larger grains is better than that with smaller grains.
The preliminary velocity as departing the chute is related to two factors, one of which is the friction coefficient between burden particles and the chute inner surface, and the other is the velocity variation that occurred as burden grains fall onto the chute from the center pipe, this phenomenon is described by the velocity reduction coefficient.
It is greatly important to correctly chose pre-conditions in the productive rules, taking the diagnosis and forecast of channeling as an example, the number of used pre-conditions exceeded thirty.
Online since: March 2016
Authors: Stefano Polizzi, Lian Yun Liu, Hui Zhang, Ting Ting Zhang, Xia Xia Bai
Because the silicon microspheres formed by this method generally had poor crystallinity, containing high-density grain boundaries, point defects, and dislocations [31-33], some researchers have been working on improving their quality and the yield [29, 34-37].
By controlling the cooling rate, high quality spherical silicon particles, which consisted of 2-3 grains, were obtained.
The synthesis of uniform particles by vapor phase reaction method, called vapor-solid reaction method, requires the use as seeds of a small number of much smaller particles [40, 53-55].
As a matter of fact, the actual reaction will depend on a number of parameters, like silane concentration, temperature, and pressure [40].
Mc Murry, Inertial impaction of fine particles at moderate Reynolds numbers and in the transonic regime with a thin-plate orifice nozzle, Journal of Aerosol Science. 21 (1990) 889-909
Online since: May 2021
Authors: V.E. Puzirkova, S.V. Nosenko, Vladimir A. Nosenko
When grinding, the metal sticks to the tops of the abrasive grains and the subsequent contact of the grain with the processed material actually causes metal-to-metal friction, which significantly increases the cutting force and temperature in the contact zone.
Test method Alloy Wheel characteristics v, m/s vs, m/min Sо, mm/str (stroke) St, mm/str Sparkout, number of strokes Cycle number ´103, σmax= 800 hPa Material Hardness Bond rough finishing rough finishing range average Repeated bending VT22 44А 54С 63С 63С B B B B L M K K K K O O V B V V V V V V 12 18 15 30 18 24 15 24 10 10 12 15 10 15 12 15 0.20 0.20 0.45 0.35 0.20 0.20 0.40 0.40 0.01 0.01 0.005 0.005 2 2 – – 2 2 – – 30-42 32-59 26-31 16-24 46-64 40-44 32-38 17-30 36 44 29 19 55 42 35 25 0.04 0.04 0.01 0.01 0.005 0.005 0.04 0.04 VT9 54С B D 63С 63С 63С M K – L L L B V V V V V 18 18 30 30 30 30 10 10 15 12 12 12 0.20 0.20 0.01 0.01 0.01 0.02 0.02 0.02 0.005 0.005 0.005 – 0,01 0.01 2 2 1 – 3 24-32* 31-40* 120* 32-43** 48-55** 52-72** 28* 35* >120* 37** 52** 63** 0.65 1.0 1.0 1.0 0.4 – 0.4 0.4 Repeated bending VT22 63С 63С 63С L L L V V V 30 30 30 12
The upper limits of the variation range of the number of cycles of a batch of samples treated with silicon carbide and CBN wheels are close (59×103 and 64×103, respectively), but the lower limit for CBN is 1.4 times higher.
Online since: May 2012
Authors: Han Li, Yu Jun Zeng, Xiao Yuan Guo, Xian Ze Peng
The output value of agriculture, forestry, animal husbandry and fishery totaled 177.558 billion Yuan, with the actual labor force numbered 11.0129 million.
As a big grain producing area in China, the sustainability of agricultural ecosystems in Hubei province affects the whole province and even continuous development of social economy.
The following are suggestions: (1) Strengthen ecological environment construction; further enact afforestation, grain for green measures; control soil erosion and regression; increase bearing capacity and emergy restoration of agriculture ecological system
Human power is the number of persons devoted in agriculture, forestry, animal husbandry and fishery, working hours according to eight hours per day.
Animal power calculated by the numbers of scalper and water buffalo in service.
Online since: February 2025
Authors: Maryna Chyrkina-Kharlamovа, Yuliana Hapon, Dmytro Tregubov, Yana Zmaha
The total number of aggregated water molecules is proportional to the cluster length.
As a hypothesis, we assume that the deviations cause is changes in the molecules combination geometry into clusters and the cluster different coordination number.
Instead, Pmax is determined by the explosion maximum temperature and the moles additional number formation in explosion products at a system constant volume.
We explained the limited solubility as the all water molecules aggregation by the solute molecules certain number.
Sanket, Development of New Transferable Coarse-Grained Models of Hydrocarbons, J.
Online since: January 2014
Authors: Ping Zheng, Wen Qian Li, Lie Jiang, Cheng Rong Qin
The dissolution of hemicellulose destroying connection between carbohydrate and lignin, and a small number of lignin also has been removed.
Average number of fiber fines fell by 10.49%.
On the one hand, because major constituent of Poly-xylose class hemicellulose is Arabia candy 4-O-methyl glucuronic acid xylose in the grain, in acidic conditions, Arab sugar-based (acid unstability) were removed in the hydrolysis process.
Absorption peak in the wave number at 897 cm - 1 was characteristic absorption peak of β- D - glucose sugar.
Fiber surface of untreated bagasse are surrounded by a large number of fine fibrosis material and small components.
Online since: December 2010
Authors: Susana Méndez, Jacques Lacaze, Iker Asenjo, Jon Sertucha, Ramón Suárez, Peio Larrañaga
.%) of the same inoculant in powder (grain size 0.2 to 0.6 mm) was made at the bottom of one of the cavities while other additions could be similarly placed in the two other cavities.
A nodularity index NI was also evaluated as the ratio of the number of spheroidal particles to the total amount of graphite particles.
Spot analysis was performed on inclusions and the number of each kind was evaluated, see Table 2.
The number of inclusions is much higher in Ce-treated than in Mg-treated alloys, they are mainly (Ce,La)S and CeP in the former, MgS in the latter.
When the number of particles was measured, average values per mm-2 are given, otherwise the observation is noted with ●.
Online since: January 2022
Authors: Hafida Zmamou, Daniel Levacher, Nathalie Leblanc, Irini Djeran Maigre, Andry Razakamanantsoa, Mazhar Hussain
Image analysis Number of fibers and cross-section area occupied by fibers were determined with ImageJ software.
Average number of six cross sections of a brick with 3cm long fibers is 272 fibers and they cover 6.71% area of a brick cross section.
In case of 2cm long fibers, average number of fibers for a cross section is 280 fibers and they occupy 6.46% area of a brick cross section.
Number of fibers and area occupied by fibers in a cross section is shown in Fig. 6c.
Number of fibers in case of 2cm length fibers is slightly higher due to small length of fibers.
Online since: July 2012
Authors: Gui Min Liu, Xiao Hui Zheng, Qing Song Yong, Jian Hua Du, Bin Li
The anchoring effect and protection function of the uniformly dispersing Al2O3 grains, which are executed onto the Cu-matrix, has been considered to contribute to the excellent arc ablation performance of composite Al2O3/Cu.
The reason is the alumina particles, which have high temperature and oxidation resistance, can reduce the number of melting bath of Cu-matrix by absorbing the heating quantity.
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