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It is believed that DPBs are highly uncoherent grain-boundaries and the high energy stored is (in part) relaxed by the high density of MTs.
They are Multiple Bound Exciton Complexes (MBEC) which have been labelled m=2 to 5 to indicate the number of electrons and holes which participate in the final (excitonic) molecule.

.% on the metastable phases formation, grain size and hardness evolution during MA process.
The powders were initially blended to the desired compositions of Ti-52.7Al-5V, Ti-55.4Al-10V, Ti57.7Al-15V and Ti-60.4Al-20V (numbers indicate at. %) under the argon atmosphere in the glovebox equipment.

Table 1 The characteristic of pulp KMnO4 numbers Yield[%] Brightness[%ISO] α-cellulose[%] Original pulp 8.7 81.9 - - Bleached pulp 3.3 - 86.6 92.5 MCC Preparation.
As shown in Fig. 1b, 1c and Fig. 2b, 2c, the yield and grain size were declined with the prolong time, so to shorten the hydrolysis time can increase the yield when the ratio and temperature were fixed.

Introduction Shandong provincial museum is located in Jinan yanshan overpass Edom 1.5 km, the construction area is about 82980 m2, building structure categories is for I class, and design use fixed number of year is for 100 years.
Construction site 150 mm thick grain concrete pavement can't meet the demand of large crawler crane walk. 400 t crawler crane walk by adopts transverse laid roadbed area of box foundation reinforcement and ensure that way longitudinal slope is less than 12°, horizontal slope is less than 5°.

Fe2O3 particles might have been reacted with massive hydroxyl groups from SiO2, this inference can be confirmed through the 1103cm-1 Si-O-Si stretching vibration peak moved to lower wave number of 1086cm-1 [8].
And the smaller the grain diameter is, the stronger the UV absorption capacity is.

aqianyu.cheng@stonybrook.edu, byafei.liu@stonybrook.edu, czeyu.chen@stonybrook.edu, dshanshan.hu@stonybrook.edu, ebalaji.raghothamachar@stonybrook.edu, fmichael.dudley@stonybrook.edu, gvladimir.pushkarev@sksiltron.com, hkevin.moeggenborg@sksiltron.com, igil.chung@sksiltron.com, jedward.sanchez@sksiltron.com, kandrey.soukhojak@sksiltron.com Keywords: scratch, dislocation array, low angle grain boundary, silicon carbide, crystal growth.
A large number of sharp features with linear contrasts at random orientations are found down the lower edge of the wafer on the 1120 reflection synchrotron white beam X-ray topograph of the first wafer recorded in transmission geometry (Fig. 2a).

The C-O bond at the wave number 1372 cm-1 for detergent sample 1079 cm-1 and 1220 cm-1 for synthetic detergent represent ester groups.
The amines group are found at the wave number 3341 cm-1 for detergent sample and 3309 cm-1 for synthetic detergent.
The differences in wave numbers provide vital structural knowledge about a compound.
In addition, the grain morphology of surfactants is related to their molecular weight, which is attributed to the solubility properties in water [41].
In addition, the rough surface morphology of detergent would increase the number of air pockets.

Sample number Laser Power [kW] Speed of the Al wire feed [mm/min] Intensity of the compressed-air flow [litre/min] Clad thickness [mm] 1 2,5 830 - 1,28 2 2 830 - 0,96 3 1 830 - 0,74 4 1 830 10 0,77 5 1 830 20 0,84 6 1 830 30 1,03 Table 1.
The SEM image of the 5th sample shows that the dark grey, small nearly spherical grains contain oxygen and aluminium, so with a great chance alumina.

(8) where is the Avogadro number, is the density, is the average sound velocity, andare transverse and longitudinal elastic wave velocity, respectively [28].
In earlier years, the effective modulus of polycrystalline materials is approximated by taking into account uniform strain [30] or uniform stress [31] exerted on grains, which are put forward by Voigt [30] and Reuss [31], respectively.

In the recent years, large numbers of efforts have been made to investigate the effective and controllable preparation routes of functional materials [3].
And Fig. 2D shows that the right side of Fe2O3 polyhedron is hexagram and that the side faces are composed of six symmetrical rumples, which maybe improve their physical performances owing to the increased specific grain surface.