Search results

Evaluation of Environmental Impact of Palm-Fiber Based Geotextile Using a Life Cycle Method LAASRI Laila1,2,a*, NAIM Hafida2,b 1Department of Chemistry, Laboratory of Chemistry and Physics of Materials, Faculty of Sciences Ben M’Sik, Hassan II University of Casablanca, Morocco 2Department of Geology, Laboratory of Geoscience, Faculty of Sciences, Ibn Tofail University, Kénitra, Morocco.
Stevens (Eds.), Industrial Applications of Natural Fibres: Structure, Properties and Technical Applications, Wiley–Blackwell, Chichester, West Sussex, U.K., 2010, pp. 509-522

However, before these compounds are bounded to insoluble cellular structures such as lignin, most of them undergo some degree of transformation and sequestration in these plant cells [26].
On the other hand, due to the accumulation of contaminants in tree trunks, there is the possibility of investigating their concentrations during the tree’s life span by linking their chemistry with the corresponding trees’ age as indicated by the tree rings [42].
Vroblesky and TM Yanosky: Use of tree-ring chemistry to document historical groundwater contamination events.

Fe3O4 is a material with a crystalline structure, though carbon is amorphous.
Oshitani, “Primary Batteries – Reserve Systems | Seawater Activated Batteries: Magnesium,” in Reference Module in Chemistry, Molecular Sciences and Chemical Engineering: Encyclopedia of Electrochemical Power Sources, J.
Bahramian, “Self-assembled and pyrolyzed carbon aerogels: An overview of their preparation mechanisms, properties and applications,” Sep. 14, 2015, Royal Society of Chemistry. doi: 10.1039/c5nr03855c

A Routine Method for Simultaneous Determination of Three Classes of Antibiotics in Aquaculture Water by SPE-RPLC-UV Xinxin Zhang1,a, Lili Dong2,b, Kuan Cai1,c, Ruiping Li1,d* 1Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, China 2Department of Chemistry, Xingtai College, Xingtai, 054001, China aemail: xiaoxiaoxinxin@foxmail.com, bemail: lili_dong@yahoo.com.cn, cemail: 351245646@qq.com, demail: rpli_ctgu@163.com, *corresponding author Keywords: veterinary antibiotics, solid phase extraction (SPE), HPLC-UV, aquaculture water Abstract.
Fig. 1 Chemical structures of antibiotics analyzed in this study.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (20977058) and the State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environment sciences, Chinese Academy sciences (2011-06).

Current medicinal chemistry, 2009. 16(25): p. 3267-3285
Du, Effect of molecular structure of chitosan on protein delivery properties of chitosan nanoparticles.
Bioorganic & medicinal chemistry, 2005. 13(5): p. 1573-1577.

Fig.1 shows a certain performance of product have different structure, two structures make uproar influence of wave under the situation, the stability state of working performance will have different behavior.
Analyze of different structure product making uproar sensitiveness of wave interfering Structure II after product strengthen design changing from A1 to A5 of external operating mode through dependability, stability and behavior of performance that product work fluctuate, change to structural right away light, face same operating mode change, structural performance display fluctuating range to be right away very heavy, product structure II has higher working dependability at this moment.
As to some relatively simple product structure, size, material, craft, procedure, designer can analyze and calculate the parameter value with higher security and mathematical model by scientific mechanics, intensity, mechanical structure to meet requirements such as dependability, intensity, security of product,etc..
It depend on scientific physics, chemistry, mechanics of flow, professional principle in respects such as mechanics,etc., knowledge such as the law, axiom derive to working mechanism and design plan of structural design, total arrangement of product, operation, analysis, calculate from theory aspect.
Relying on structure to optimize, material optimize and design, the mean can reduce spare part manufacturing cost of other dependability course, keep manufacturing cost advantage of product on the whole.

Formation of Structure and Properties of 30HGSN2A Steel at Technological Stages of Manufacture of Heavy-Loaded Parts V.S.
The influence treatment conditions on the structure and properties of steel are investigated.
Upon the onset of the first option, the fracture has a structure characteristic of fatigue failure [8] (Fig. 3).
Problems of physics and chemistry of the solid state of organic compounds.
Anohina Structure formation, properties and methods of increasing the hot plasticity of stainless austenitic chromium-Nickel steels containing lead.

From the image, it can be seen that Jaranan wood had smoother and rigid structures, whereas coconut shell carbon possesses amorphous and brittle structures.
Type I isotherm indicates that dimensional pores are mostly dominated by microporous structure.
Otherwise, Jaranan wood carbon features a combination of micro- and mesopore structures.
Summary Porous carbon with a good quality of pore structure was produced by pyrolysis of Jaranan wood.
Pendleton, Adsorption of anionic surfactant by activated carbon: effect of surface chemistry, ionic strength, and hydrophobicity, J.

Preparation and Research of Phase Change Material Based EVA / binary fatty acids Composite Jing Guo1,a, Jingnan Fan1,b and Hengxue Xiang1,c 1School of Chemistry & Material, Dalian Polytechnic University, Dalian, 116034, P.R.
The structure and thermal insulation properties of the binary fatty acids and EVA /binary fatty acids composite are investigated using Fourier transformation infrared spectroscope (FTIR) and temperature-recording instrument.
It is because that the net structure of EVA becomes friable at high temperature and high humidity [1].
When the phase variation body proportion is less than 90%, even if the net structure becomes friable, it can also pack the phase variation body well.
When the phase variation body proportion increases to 90%, the friable net structure can't pack the phase variation body well so that the mass loss rate rises.

The small angles X-Ray diffraction curves confirmed to us that there is a clear difference between the surface structure of the samples by varying the number of Kiessig Fringes, Also high angles X-Ray diffraction curves assured us this difference through the clear variation in the angular positions of the peaks of Bragg and the distances inter-reticular values from a sample to the other.
Alongside the variety of deposition methods, the nature of the materials produced in thin layers only multiplies: insulators, semiconductors, carbides, polymers, and superconductors [2], their applications spanning several fields: microelectronics, optics, mechanics, biomedical chemistry [3], etc.
Therefore, all the samples studied in this work were evaporated into the ultra-vacuum frame of the EJM technique, The use of the epitaxy technique by molecular beam aims at the producer of high-quality crystalline thin layers [6], with abrupt interfaces; this necessarily required the use of structural characterization techniques ex situ such as X-ray diffraction which allow to check the correlation between the crystalline quality of the alternating structure and/or the quality of the interfaces with the layer thickness buffer used. 2.
Geaymonda, O.Ulriche, Epitaxial growth and structure of cobalt ferrite thin films with large inversion parameter on Ag(001).
Blackwoodz, Honey-Comb Structured WO3/TiO2 Thin Films with Improved Electrochromic Properties.