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Correlations and joint probability distributions including all observed properties are better tools for describing the first group.
Such simple differentiation may be complicated by a linear relationships between quantitative factors.
We can influence on some agents, some of them are only observed by us and some factors remain unknown.
How data uncertainty may affect the final results?
Radek, Determining the Operational Properties of Steel Beaters after Electrospark Deposition, Eksploat Niezawodn (2009) (4) 10-16

Tab.1 presents the mechanical properties of gabion in the field test.
This is because the simulation has ignored the effects of filling compacting during the construction and other unforeseen factors.
The simulation is always idealized, while the actual construction is affected by many factors such as compactness of filling and many other parameters.
The vertical earth pressure is affected by the grade of wall surface, stiffness of wall surface, film effect of wire and geo-synthetics, compaction of filling and many other factors.
The distribution of vertical earth pressure is closely related to the tensile and uplift safety factor of geo-synthetics.

After testing the corresponding mechanical properties, internal small, the super early strength grouting material block for 2.5-5.0{mm} may remove the specimen surface of cortex for microstructure analysis.
The experiments at three levels, three factors, by using L9 (33) orthogonal table are designed.
Factor levels table shown in table 1(B for the amount of cementitious material) Table 1 Factors and levels of orthogonal test design The levels Factors Sodium sulfate (%)(B) triethanolamine (%)(B) Early strength Component A (%)(B) 1 0.6 0.03 0.6 2 0.8 0.05 0.8 3 1.0 0.07 1.0 Experimental results and analysis The determination of the optimal ratio.
To various factors of the specimens, the strength index is that the maximum is optimal.
As a result of the early strength agent cost and price factors, super early strength grouting material costs and prices are badly affected.

Besides that, Ural et al [10] has studied the dependence of cell geometry, cell size, cell wall thickness, face sheet material and face sheet thickness on the physical/mechanical properties of honeycomb sandwich structures.
This section reviews some of the universal factors related to adhesive failures and the several types of failure occurred in adhesive bonding.
The weaknesses of the bonding properties between skin-core interface could be the result of the manufacturing imperfection and service loading such as inadvertent introduction of foreign matter or improper gluing at the interface, wave slamming and underwater explosions [5,24,28-29].
Hence, there was a need for systematic study to understand how the core and face sheet properties affect the compression behaviour of a debonded sandwich structure.
Bonding Performance There are lots of challenges involved in adhesive bonding that can affect the mechanical properties of the joint which are currently unresolved and to some extent, require reconsideration and improvement for development in aircraft structures.

The optimum solidifying time was determined based on uniform experimental design method considering the factors of cement content and phosphate tailing content at 5 design levels.
The influence factors about the optimum moisture content are discussed.
In order to solve this problem, this thesis makes researches about the influence of moisture content on cement solidification effect through various experiments on silt with different water ratio, hoping to nail down the law of influence of water ratio on solidified silt’s mechanical properties and guide the engineering practice in a better way.
Sea silt’s physical properties are showed in Table 1.
Table 3 Factors and levels for determining the optimum moisture content of cement-solidified sea silt added phosphate tailing Factors The proportion of sea silt and phosphate tailing The added cement（%） Scheme 1 70:30 5 Scheme 2 60:40 10 Scheme 3 50:50 15 Scheme 4 40:60 20 Scheme 5 30:70 25 Method Firstly, we added the phosphate tailing and cement into the dry marine sludge according to the test scheme.

Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Production and Properties of Glass-Ceramic from Incinerator Fly Ash Hyung-Sun Kim 1* , Jae-Myung Kim 1, T.
In this work, we report the results of production and properties of a glass-ceramic derived from Korean incinerator fly ash with high Cl content.
It seems that Na and K components exist as a NaCl and KCl from the result of water-washing and high content of CaO in the fly ash affected a decrease in melting temperature.
The process of water-washing the fly ash, melting and then a single heat treatment, produced a good glass-ceramic in terms of economic, physical and mechanical properties.
The values for glass-ceramics are somewhat higher than those for glass, but it seems to be not affected very much.

Because the compaction response of the textile reinforcement can affect both the manufacturing parameters like permeability and the mechanical properties of the final product due to the variation of Fiber Volume Content (FVC).
Typical compaction procedure 2.3 Design of experiments Tab. 1 indicates the compaction and preforming parameters (factors) and their values (levers).
The factors chosen for the compaction experiments were: (1) compaction temperature, , (2) binder activation temperature, , (3) binder content, and (3) binder activation time, .
Tab. 1 Compaction and preforming parameters used in the experiments Levels Factors Compactiontemperature Binder activationtemperature Binder content Binder activation time A [°C] B [°C] C [wt.%] D [min] 1 25 90 1 0.5 2 60 100 3 1.0 3 125 110 5 1.5 4 190 120 7 2.0 To save the experimental effort, orthogonal arrays, in which the columns for the independent variables are orthogonal to one another, are often employed in industrial experiments to study the effect of several control factors.
Properties of poly(butylene terephthatlate) polymerized from cyclic oligomers and its composites.

The influences of pore water solution concentration on the swelling properties of expansive soils were studied using the constant volume swelling pressure experiments and swelling ratio experiments under load.
Introduction The study of influencing factors on the swelling behaviors of bentonites usually concentrated in the mechanical factors imposed on soils, for example the vertical load applied on the sample, and the physical character of soils, for example initial dry density, initial water content.
Although the inundating solution, viz. bulk solution, is lower than the original solution to prepare the specimens, the concentrations of the solutions around the clay layers are not necessarily affected by the bulk solutions.

A dimensional analysis is carried out to relate the surface roughness measure to the key processing parameters and abrasive/work material properties.
The workpiece material used was round AISI4340 steel bar (in the annealed state) whose properties are given in Table 1.
All workpiece samples were preturned on a CNC lathe to remove preexisting surface layers whose properties might differ from the bulk material, to obtain uniform initial conditions in both dimensions and surface integrity.
Mesh size #80 garnet abrasives with its properties given in Table 1 were used for all the cutting tests.
From previous studies [6, 8], the jet/abrasive cutting ability is primarily dependent on water pressure P, jet diameter dj, nozzle standoff distance Sd, the efficiency of momentum transfer from the waterjet to the abrasives km, the abrasive flow rate ma, and the abrasive properties including shape factor ks, hardness Ha, average particle size dp and density ra.

Great research efforts have been studied on the grinding performance under high-speed grinding conditions [5-10]. 40Cr steel is widely used to make some important mechanical parts such as gears and axis due to its excellent mechanical and heat treatment properties.
It is clearly drawn that depth of cut is a significant factor to affect grinding force, because the maximum undeformed thickness hmax increases under bigger depth of cut.
It is clear that depth of cut is a significant factor to affect grinding force; the decrease of grinding force is significant while depth of cut equals to 0.4mm.
London: Mechanical Eng.