Materials Literature
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The state of the art in failure modeling enables assessment of crack nucleation, propagation, and progression to fragmentation due to high velocity impact. Vulnerability assessments suggest a need to track material behavior through failure, to the point of fragmentation and beyond. This eld of research is particularly…
摘要： 以吡啶、丙磺酸内酯和钨磷酸为原料，合成了离子液体型多金属氧酸盐（POM-IL）化合物[PyPS]nH3-nPW12O40·xH2O（n=1，2，3），用FT-IR、UV-Vis、1H NMR和元素分析等对其进行了表征。 结果显示，POM-IL化合物仍保持相应钨磷酸的Keggin结构，并存在吡啶丙磺酸的特征谱带，熔点均高于130 ℃，且随有机阳离子含量增加，熔点降低。 在紫外光下，n为1和2的POM-IL对水溶液中甲基橙的光催化降解活性与钨磷酸相似；在可见光下，POM-IL对水溶液中靛红的光催化降解活性相近，且均远高于钨磷酸。
Modeling of reacting flows in porous media has become particularly important with the increased interest in hydrogen solid-storage beds. An advanced type of storage bed has been proposed that utilizes oxidation of uranium hydride to heat and decompose the hydride, releasing the hydrogen. To reduce the cost and time re…
In the above-named article [ibid., vol. 2, no. 5, pp. 538-555, Sep. 2012], the authors would like to correct the following print error in the legend to Fig. 14, which should be read as follows: "Fig. 14. Broad-band active metamaterial in the THz region [69]. (a) Schematics for resonator patterns on a VO2 thin film and…
ENGLISH ABSTRACT: Natural fibre reinforced concrete (NFRC) is a type of concrete that has become of particular interest in recent years, due to its potential for being used as a sustainable and economically viable building material. Natural fibres are often cheap and widely available in developing nations. Sisal is on…
ENGLISH ABSTRACT: A comparative study of the chemical composition of linear low density polyethylene polymers, synthesised with 1 - hexene as comonomer was conducted. Catalyst trials were conducted on the linear low density 1 - hexene polymer grade material to evaluate alternative catalysts. A comparative analysis was…
ENGLISH ABSTRACT: Polymer composites, and in particular wood-polymer composites have become commercially and environmentally important materials. Studies in polyolefin-wood composites have mostly focused on polypropylene (PP) and polyethylene (PE). To our knowledge, no study has been undertaken on advancing impact pol…
ENGLISH ABSTRACT: Heterophasic copolymers (also known as HECO polymers) or often referred to only as impact copolymers or block copolymers comprise a polymer matrix with a dispersed rubbery copolymer phase. The polymer under investigation in this study consists of a polypropylene homopolymer matrix and ethylene-propyl…
The International Conference on Thin Films is the most established conference for all researchers and persons interested in thin films and coatings. It is one of the tri-annual conference series endorsed and co-organized by the Thin Film Division of the International Union for Vacuum Science, Technique and Application…
Comptes Rendus Chimie - In Press.Proof corrected by the author Available online since jeudi 7 mars 2013
In this research, a series of synthetically engineered copolymers were synthesized containing polysaccharides (e.g., β-cyclodextrin and chitosan) to address the removal of trihalomethanes (THMs) from water environments. There are two main parts in this research thesis: i) the preparation and characterization of polysa…
El hormigon armado es el material estructural mas empleado en construccion, lo que exige un exhaustivo control tanto de los materiales que lo componen como de su ejecucion, con el fin de garantizar la vida util para la que ha sido proyectado. Uno de los principales problemas de la durabilidad del hormigon armado, es l…
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WP5 had two objectives: - To generate in vitro genotoxicity data on manufactured MNs (specific objective #3). - To perform a round robin test on in vitro genotoxicity testing of MNs (specific objective #4) WP5 addressed the basic questions of in vitro genotoxicity testing of manufactured nanomaterials (MNs): how well…
Understanding the transport properties of microorganisms in fluid is a fundamental problem in soft matter physics, and the dynamics of an active colloid in non-equilibrium statistical mechanics has recently attracted pioneering investigations into the design of artificial swimming robots at the microscale. A topical r…
This chapter contains sections titled: Introduction Dynamics of polarization mechanisms Orientation polarization in the time domain Orientation polarization in the frequency domain Temperature dependence Relaxation modes of amorphous polymers Relaxation modes of semi-crystalline polymers Conclusion Bibliography
This chapter contains sections titled: Introduction Fundamental aspects of electron irradiation of solids Physics of insulators Applications: measurement of the trapped charge or the surface potential Conclusion Bibliography
Work presented in this thesis centres around the application of the new hyperpolarisation technique, SABRE, within nuclear magnetic resonance spectroscopy, focusing on optimisation of the technique to characterise small organic molecules. While pyridine was employed as a model substrate, studies on a range of molecule…
A carbon nanotube (CNT) tip was fabricated at the apex of an etched tungsten wire by chemical vapor deposition and used for scanning tunneling microscopy. The honeycomb lattice of graphite in the STM images was resolved with a CNT tip at T=79 K. The superior spatial resolution originating from the p orbitals of a CNT…
This chapter contains sections titled: Introduction Principle of the thermal step method (TSM) Numerical resolution methods Experimental set-up Applications Conclusion Bibliography