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Design of Experiments (DOE) is a structured approach for conducting experiments, with benefits in the product, process development, and process improvement.
Ullmann's Encyclopedia of Industrial Chemistry. 2000

It was a really complex problem; many different scientific disciplines (chemistry, soil- and rock mechanics, hydrogeology, etc...) were required for the solution.
The fine particle structure of the fly-ash caused serious problems because fine particles plugged the drainage system.

The development of microbial biofilms starts with the attachment of free living planktonic cells to a surface, then these cells proliferate and form a three-dimensional structure composed of multiple layers, followed by the secretion of an exopolymeric material that forms the biofilm matrix.
Roduner, The Royal Society of Chemistry, 35 (2006) 583-592

(2) There were multi-scale changes in the annual runoff of Dongjiang River, and the small scale was nested in more complicated structure of large scale.
Beijing: Chemistry and Industry Press, 2005, pp. 4-130

Eq.11 is submitted into Eq.29, Eq.30 will be gained: Fig. 13 Different expression curve on Fig.14 The ratio of changes shear strain dependency of with horizontal shear strain for LRB post-yield stiffness (29) (30) 2.3 Yield load and yield force According to the relationship between and , Eq.31 can be derived: (31) Eq.12 is substituted, then: (32) 2.4 Equivalent shear stiffness and equivalent damping ratio When equivalent linearization method is used to calculate isolation structure, equivalent shear stiffness and equivalent damping ratioat different stage of shear strain will be used, they can be gained from Eq.13 and Eq.14. 3 Comparative analysis between test curve of isolator and calculation curve with
Rubber Chemistry and Technology. 1992,1(65):46-62

Chromium additions to the alloys affected precipitate morphologies in ways which depended on alloy chemistry and oxygen potential.
An investigation [22] of NiAl2O4 precipitate crystallography has shown that their defect structure is complex, and inward oxygen transport via these defects has been suggested.

But joining III-V semiconductors with silicon (Si) turned out to be difficult because of the chemistry defining each of the materials as dopants for the other group.
In the following part the impact of lattice mismatch and strain on nanometer layers and their electronic structure is evaluated.
Bottom: TEM micrograph of the dislocation structure in large islands. [4] mode or 2D growth), see Fig. 15.
Structures able to adjust the strain of SiGe and even Si layers on top of a Si substrate are called strain platforms.
Martienssen), Semiconductor Quantum Structures, Optical Properties, Springer (2007) [32] M.

The aim of this paper is to document and summarize how relevant diffusion couple studies can be related to the as-fabricated structures of monolithic fuel plates, and help understand fundamentals of phase equilibria and diffusion kinetics associated with the processing of a monolithic fuel system. 2.
This chemical banding results in local deviations from the nominal chemistry, and at lower Mo concentration, the alloy is more prone to decomposition [17].
The interaction regions reported from these studies were several hundred microns in length and permitted precise determination of the constituent phases with respect to chemical composition and crystal structure.
These intermetallic phases may have high nucleation barriers due to complex crystal structures (cF184 for UMo2Al20 and hP106 for U6Mo4Al43 [36]) and did not form in the relatively short HIP holding time.

Even though in some applications the charged membrane could have higher performance, the performance of hydrophilic membrane should be not influenced by the physico-chemistry of the feed solution.
In this modification a sulfonic acid group, SO3H, is introduced into the structure of a molecule or ion in instead of a hydrogen atom.
The results indicated that PEG can be as a pore-former on the structure formation of membrane and increases permeation properties.
Based on its structure, the shape of amphiphilic polymers can be a block, comb, and branch.
Overall, the membrane fouling resistance and the modification stability resulted from the addition of amphiphilic polymer is influenced by amphiphilic concentration, amphiphilic chain length, amphiphilic chemical structure and amphiphilic chain structure.

After annealing at 500 °C, the (002) diffraction peak shifts to 34.33°, reflecting enhanced crystallinity and a more well-defined wurtzite structure.
All refined parameters consistently point to the formation of a single-phase hexagonal ZnO structure with no detectable secondary phases.
These peaks correspond to the hexagonal wurtzite structure of ZnO, confirming the crystalline nature of the material.
Future investigations should explore alternative annealing atmospheres (O2, N2, or forming gas) to fine-tune defect chemistry and carrier concentration, as well as doped ZnO systems (Al, Ga, In) to assess potential synergistic effects between dopant activation and thermal relaxation.
Liu, The effect of vacuum annealing on the structures and optical and electric properties of the sputtered ZnO films, Phys.