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The degradation refers to any process that breaks down the molecular structure of macromolecules.
Polymer degradation refers to any process that breaks down the molecular structure of macromolecules.
The influence of iron ions are making the PAM degradation, destroying the structure of PAM, lowing the viscosity of PAM[3].
They can easily destroy the structure of PAM, or interact with the acrylic group in HPAM.
Oilfield Chemistry 23 (3), 235-238, 255

Some of selected materials with their chemical structures are shown in Fig. 1.
The sensor device consists of metal/organic layer/metal in the planar type structure as shown in Fig. 3(b).
The studies on the planar structure of VOPcPhO based organic sensor was previously reported by our co-researcher [22].
Norazilawati Muhamad Sarih from Department of Chemistry, University of Malaya, Malaysia for providing the azothiazole dye and Prof.
As-Sehemi from Department of Chemistry, University of King Khaled, Saudi Arabia for supplying us many types of dyes.

There are well-known methods of impregnation with molten sulfur for wood, ceramic bricks, concrete structures.
The original cement concrete has a porous structure with pores and inclusions.
Makarovskikha, Ash and Slag Waste as a Secondary Raw Material, Procedia Chemistry, 10 ( 2014 ) 184-191
Kalinkin, Structure and properties of modified sulfur binder, Building materials, 7 (2005) 6-9
Aleskovsky, Quantum synthesis, Russian Journal of Applied Chemistry, 11 (2007) 1761-1767

XRD patterns have revealed the good crystalline structure for all the samples of NiO nanoparticles prepared by the sol-gel method which is also confirmed by HRTEM images.
High resolution images have shown good crystalline quality of NiO nanoparticles and on some samples a typical core-shell- structure can be seen.
Raman measurements taken at 50K also show the characteristics peaks of NiO and no significant change of the phononic patterns have been observed for all of our samples indicating that the short range structure keeps well the structure of NiO in agreement with the X-ray results.
Palombari, "Influence of surface acceptor /donor couples on conductivity and other electrochemical properties of nonstoichiometric NiO at 200°C," Journal of Electroanalytical Chemistry, vol. 546, pp. 23-28, 2003
[9] Kaname Sakiyama, Kenji Koga, Takafumi Seto, Makoto Hirasawa and Takaaki Orii, "Formation of Size-Selected Ni/NiO Core−Shell Particles by Pulsed Laser Ablation," The Journal of Physical Chemistry B, vol. 108, no. 2, pp. 523-529, 2004

Structure and Characteristics of the Metal of the Cr-Ni-Mo-Mn-Si-Ti-Nb System Obtained by Surfacing with a Flux-Cored Wire Alloyed by Boron Carbide E.N.
At the same time, the crystallization of chromium-nickel-silicon steels produces a two-phase ferritic-austenite structure [3].
a b a – microstricture; b – fine structure Fig. 1.
The structure of the coating metal surfaced with a flux-cored wire of composition 3.
Joubert, Crystal chemistry and Calphad modeling of the σ-phase, Progress Mater.

Forni 2,d 1 D.I.Mendeleyev University of Chemical Technology of Russia, Department of Physical Chemistry, Miusskaya sq., 9, 125047, Moscow, Russia 2 Università di Milano, Dipartimento di Chimica Fisica ed Elettrochimica, via Golgi, 19 20133 Milan, Italy e-mail: a kruk_s@mail.ru, b avish@muctr.edu.ru, c lucio.forni@unimi.it, d cesare.oliva@unimi.it Keywords: perovskite, flame-spray pyrolysis, catalytic methane combustion, Abstract.
All the prepared samples possessed the LaCoO3 perovskite-like structure and consisted of 30-60 nm particles, but existing as large (80-200 nm) agglomerates.
Some relevant characteristics of the prepared catalysts prepared and tested and those given in literature The XRD patterns shown in Fig. 1 indicated that undoped LaCoO3 and La0.9Pr0.1CoO3 possessed the LaCoO3 structure with rhombohedral symmetry (JCPD-ICDD 48-0123) (two close "twin" reflections at 2θ=32.9 and 33.3°).
Commun., Vol. 7 (2005), p. 109 [10] Handbook on the Physics and Chemistry of Rare Earths, Vol.3, edited by K.A.

The method was applied for obtaining of the range of products, whose structures were confirmed by 1H NMR Spectra.
A structural review, Coordination Chemistry Reviews. 209 (2000) 197–261

We will analyze the structure of basic SFIT and then a simulation is performed using a finite element software.
Because acoustic force does not destroy the structure of particles and is non-invasive.
Figure 1 shows the structure of a SFIT.
In this study, a special structure of SFIT will be simulated.
Laurell, Analytical Chemistry,79 (2007) 5117–5123

The transfer length method (TLM) test structure was used to evaluate the contacts.
The epilayers were patterned into isolated mesas in a parallel-plate reactive ion etcher (RIE) system using SF6 and Ar chemistry and a metal mask (titanium/nickel/aluminum).
The transfer length method (TLM) test structure, as shown in Fig. 1, was used to evaluate the metal contacts [6, 7].
TLM structures consisted of five rectangular contact pads, with three subsets.
Fig. 1: Optical image of the linear TLM structures used to obtain specific contact resistance values (ρc).

The configuration and structure were investigated with scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques.
It is an alternative means to form coatings and has several advantages including low processing temperature, high crystallinity of products, application for complex shapes, changing the chemistry or processing conditions can modify the microstructure of coatings.
The analyses showed that the TO2 is main anatase structure, and the as-prepared films were all well crystallinzed, homogeneous.
Nishiguchi, et al., Graded surface structure of bioactive titanium prepared by chemical treatment, Graded surface structure of bioactive titanium. (1999) 100-107
Journal of Molecular Structure 744–747 (2005) 633–640 [10] LIU D.