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In this study, the production of 1 ton of winter wheat grain was selected as the functional unit.
The characterization provides indicators for analyzing the potential contributions of resource extractions and emissions to a number of potential impacts.
Therefore, the program showed significant eutrophication reduction potential per ton of grain.
The eutrophication reduction index was 0.1209-0.3031 which means the eutrophication potential reduction per ton of grain achieved by the STFF program accounted for 12.09-30.31% of the world per capita eutrophication potential in 2000.

c) The values of k agree very well with numbers obtained from resistance measurements [11] in similar samples under similar conditions.
The role of grain boundaries and short circuits [2,25,27] cannot be neglected for the interpretation of the results obtained form thin film reactions and unfortunately, there are no data for tracer grain boundary diffusion of Si in Co and of Si and Co in CoSi published.
Thus it would be desirable to have reliable data on the diffusivities, for example from direct diffusion measurements in thin film geometries with similar grain size and morphology.

In the last two decades of the XX century were produced a high number of amorphous alloys the most well known being based on Fe, Co or Ni.
It can be defined as the minimal rate of cooling applied to a melting which avoids the formation of a single crystalline grain into a certain volume of material.
Because the term of crystalline grain depends on the experimental methods capable to show it, practically one considers that the critical amorphization rate of cooling is the minimal rate of cooling which avoid the 10 -6 crystalls fraction formation [1].
(figure 2). 1 mm 1 nm 1 µm Coercitivity, A/cm Graine size 0,01 0,001 0,1 1 10 100 Amorphous alloys d6 1/d ● ● ● ● ▲ ▲ ■ ▲ ■ ■ Permalloy Fe-Si 50.iFe .anocrystalline alloys Fig.2 Variation of the coercitive field with the grain size [1] In the last decades were developed many amorphous and nanocrystalline ferromagnetic families alloys, the most well know being the Fe81B13Si4C2, Fe81B13Si6 amourphous alloys respectively the nanocrystalline alloys familiar under the commercial name of Finemet (Fe-Cu-M-B-Si), Nanoperm (Fe-M-B), or Hitperm (Fe-Co-M-B-Cu) where M = Zr, Hf, Nb, Mo,V.

Grain size distribution diagram (OD).
Grain size distribution diagram (ND).
Also, an old and new city demolition waste passing sieve number 4 has been mixed with expansive soil to reduce its swelling potential.
Results and Discussion Abrasion test by Los Angeles device are conducted to evaluate grain size distribution, compaction (modified proctor) and unconfined compressive strength.

SFMO has a high Curie temperature of 420 K [1], a high low-field magnetic resistance (MR) associated with grain boundary tunnelling [2], and an about entire spin polarization [3].
Simultaneously, the number of reacting species was increased.
Fe atom precipitation on grain boundaries was unlikely to occur in this case, because the increase of oxygen pressure during annealing should result in an increase of the amount of precipitated Fe atoms and, correspondingly, in an increase of the magnetic moment of the high-temperature magnetic phase with Тс = 700 К. 100 200 300 400 500 600 700 800 0 1 2 3 4 M (µB/formula unit) T,K B=0.86T 1 2 0 2 4 6 8 -35 -30 -25 -20 -15 -10 -5 0 1 MR, % B, T 2 Fig. 5.
Conclusions The presented work has shown that Sr2FeMoO6±δ synthesis using partially reduced precursors of SrFeO3-х and SrMoO4-у comprising nanometer-sized grains, resulted in single phase Sr2FeMoO6±δ with superstructure ordering of Fe 3+ and Mo5+ cations.

The grain structures of the hot bands were observed by optical microscopy (OM).
The grain size, precipitate size and distribution and the residual solute content were identified as important hot band parameters, influencing the recrystallization behavior of IF steels [8,9].
Steel TI-1, TI-2 and TI-3 had a similar hot band grain size, about 21 µm, 24 µm and 23 µm respectively, so the precipitate size and distribution and the residual solute content were expected to be responsible for the differences in the recrystallization behavior of the three steels.
N(R)dR is the number per unit volume of centers with typical size between R and R+dR.

The addition of Mn will segregation on the austenite grain boundary and suppress nucleation, which eases the requirement for cooling speed to some extent.
The higher cooling speed, the more martensite and finer grains[10].
Roller hearth furnace is a furnace that consists a number of parallel rollers.
When the forming temperature is too high, the austenitization degree is excessive resulting in the austenite grain coarsening.

It is worth noting that once a good dispersion of the particles is achieved, mechanical properties can be improved by reducing the grain size of the matrix and by work hardening.
It could be interpreted by considering that there could be a number of particles which do not effectively contribute to strengthening of the material.
Possible explanations are that these might be placed in correspondence of grain boundaries or might form small aggregates of few particles which are not as effective as the discrete ones.
Probably. this is due to the fact that these are placed at grain boundaries and some others form small clusters not effective as the discrete particles.

A large number of these operations in the manufacturing processes force suppliers to reduce costs and increase productivity while maintaining the required accuracy and quality of the preforms or of the finished products.
An abrasive with a grain size of 150 – 300 μm was used.
The grain direction in the material was not taken into account when cutting the specimen.
This resulted in the formation of cracks and their further spread along the grain boundaries.

In addition, there are factors, which directly influence the product quality, such as hardness, porosity, morphology, and size of grains and the binder to be used [9].
Proportions (binder [g]/ gypsum [g]) Binder % Particle size Hardness (N) 0.1024 0.1280 0.1536 Manioc starch 68.23819 63.13206 81.70426 12.96 - 9.074 0.0120 0.0250 0.0380 CMC 82.50309 84.42122 88.40889 4.971 2.186 1.456 0.0120 0.0250 0.0380 PVA 77.36050 78.98779 81.23549 3.829 5.036 4.310 The binder that had the best grain size was carboxymethylcellulose (CMC), as can be seen in Table 2.
Because the number of samples, it is possible to statistically analyze the resistance data.
The average strength to the grains that were used cassava starch was close to 1 kgf (about 10 Newton).