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Graphene nanoparticles (98% purity) with a grain size of about 30 nm were purchased from Loba Chemie Pvt Ltd, India.
The relationship between thermal conductivity coefficient and wt. % of graphene At low loading levels of nanoparticles of graphene, thermally conductive particles are isolated from each other by polymer matrix because of their low numbers.
However, at high loading levels of graphene nanoparticles, the dispersion operation with a large number of graphene nanoparticles contribute to form the chains of conductive, making the matrix polymer almost continuous.

The development of grinding motorized spindle with high power and high rotational speed together with more efficient linear motor drives, in addition to the well-performed grinding wheel, has created the conditions to shorten machining times and to reduce the number of machining operations required while improving the machining quality.
Grinding wheel speed Grinding wheel speed Fig.1: Mechanism of ultra-high-speed grinding Alternatively, increasing the workpiece speed while assuming all other parameters constant can reduce the length of time the abrasive grain in contact with the workpiece which can make the grinding heat sources transfer faster on the workpiece surface and reduce the quantity of heat into the workpiece, which, consequently, improves the heat dissipation conditions and reduces the tendency of the workpiece thermal damage and generation of cracks.
Compared to conventional feed drives, using a rotary motor and a ball screw, the linear motor has a significantly reduced number of moving components.

Silica fine fillers have a number of significant advantages due to their chemical nature which are high water resistance, abrasion resistance, chemical inertness and durability. [5]  Low demand for silica fine fillers on the market today is caused by the fact that until recently silica flour was obtained as a minor product of sand quarrying using old-fashioned grinding machinery which resulted in unstable quality.
Insufficient number of studies on silica flour impact on dry-mix mortars performance may be another reason.
Adding fine fillers to the formulation helps to optimize grain-size composition and, consequently, to increase the contact area between an adhesive and a substrate as well as between an adhesive and a ceramic tile.

Although INAA offers high sensitivity and low detection limits for certain REEs, the technique can only determine a limited number of REEs at a time due to matrix activation and other interferences.
Despite a considerable number of new studies on sample introduction techniques in ICP-MS applications, especially in the analysis of geological samples, solution nebulization remains the preferred method.
Comparative studies for determining the accuracy of the methods using XRF analysis demonstrated that fusion bead is better for phosphor-silicate samples and iron ores, though it is true that the method eliminates the grain size effects and mineralogical effects in the powder sample analysis [13].

Introduction A large number of vibration systems are included in the running electromechanical or automobile.
Some alloys with high damping capacity at room temperature may lose their good performance when the temperature is too high, for an example, TiNi alloys usually lose their high damping due to the loss of a large number of interfaces once the martensite phase is converted to the parent phase above 373K [2].
M2052 has distinct grains with the size of about 82µm, and the twin microstructure can be identified in the upper right corner of Fig. 1c. 3. 2 Tensile properties Fig. 2 shows the stress-strain curves measured by the tensile test of the samples.

The charged defects in lattice structure grow in number when Al element mixed in ZnO, and free electron is easier to form, the conductivity of the AZO materials increased strongly.
From 2(a) we can see AZO are rice-like and several rice-grains always connect together.
The gas sensing mechanism can be described in terms of an adsorption/desorption process of oxygen atthe surface of sensing materials.There are a number of donor defects in the ZnO crystal structure, and Al3+ ion radius is larger than the Zn2 +, therefore it’s easy to form effective Al doping in ZnO crystals.

From these results, it can be came to a conclusion that the Fe and S in the material is mainly pyrite with a distribution ratio of 28.45%, and there are a mass of kaolinite and a small number of quartz as main gangue minerals.
Table 8 Results of the close-circuit flotation (The cleanings 2 and 3 were conducted with relatively low slurry concentration) Product S Fe Grade [%] Recovery [%] Grade [%] Recovery [%] Concentrate 52.82 99.13 45.29 96.00 Tailing 0.21 0.87 0.83 4.00 Total 16.54 100 15.84 100 Conclusion It can be seen from the results and discussion above that: The characterization of primary material indicates that the pyrite is major useful mineral in the material, and the gangue minerals are mainly composed by kaolinite and a small number of quartz.
The majority pyrite was fine-grained disseminated in kaolinite, resulting in the surphur concentrate with low quality and low recovery by using gravity separation.

Radioactivity Radioactivity is the ability of atoms to spontaneously change the number of particles in their nucleus.
This number shows how much it emits 1 kilogram, 1 cubic meter or 1 square meter of a particular radioactive material.
Kinetic-mathematical model of hydration of lime-silica binder, wich activated together with a fine-grained filler // Proceeding of 13th International Congress on the Chemistry of Cement. – Madrid, Spain 2-8 July 2011.

Several numerical studies of the defects on nanowires have been reported, such as the study of the grain boundaries effect on the mechanical tensile behaviour of twinned metal nanowires [16].
For Case , a number of parallel SFs are generated after yielding, with only one intrinsic SFs is found in a different plane at the left end of the nanowire, which intersects with , as highlighted by the rectangle in Fig. 5(e1).
The left and right figures of each group are visualized according to the value between 0.5~10 and the coordination number between 4~12, respectively.

Therefore, the transition probability of the movement from one event to a next event is obtained (1) Where is the number of event transition from situation at time to situationat time ; and is the number of events in situation in the series followed by another situations, so that (2) According to above definition, there are 64 movements in total during the bursting process at every measured point.
A model for the entrainment and transport of sediment grains of mixed sizes, shapes and dencities.