Materials Literature
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In the present work, diphasic ceramic composites with core-shell nanostructures formed by Ni0.50Zn0.50Fe2O4 core and BaTiO3 shell were investigated. Their properties were compared with those of composites prepared by coprecipitation. The core-shell structure was confirmed by microstructural powder analysis. Homogeneou…
The present study reports the effect of linear densities and profiles of polyester fibres on the physiological properties of their fabrics. Four different polyester fibre finenesses along with microdenier and four cross-sectional shapes (circular, scalloped oval, tetrakelion and trilobal) were selected to produce two…
The graphene morphology regulated by nanowires patterned in parallel on a substrate surface is quantitatively determined using energy minimization. The regulated graphene morphology is shown to be governed by the nanowire diameter, the nanowire spacing, and the interfacial bonding energies between the graphene and the…
Some strongly frustrated magnets such as the "spin-ice" compounds fail to produce any magnetic order at finite temperatures even in the presence of magnetic field. Still they have very unusual low-temperature thermodynamic properties related to the field-induced ground state transitions. Here we show that general qual…
The indirect prediction of shrinkage induced solidification defects is considered in this study. The previously suggested criterion function methods, in particular the Pellini and Niyama criteria are analyzed in details, and their shortcomings are shown as a result of our analysis (e.g. the scale/shape-dependency of c…
A transition is reported in the dislocation microstructure of pure Fe produced by heavy-ion irradiation of thin foils, which took place between irradiation temperatures (T irr) of 300°C and 500°C. At T irr ≤ 400°C, the microstructure was dominated by round or irregular non-edge dislocation loops of interstitial nature…
We have investigated several configurations of antennas based on graphene. We show that patterned metallic dipole antennas or arrays of dipole antennas deposited on graphene highly benefit from the reversible high-resistivity-to-low-resistivity transition in graphene, tuned by a gate voltage. The radiation pattern and…
The thermal boundary conductances between c-axis oriented highly ordered pyrolytic graphite and several metals have been measured in the temperature range 87–300 K and are found to be similar to those of metal–diamond interfaces. The values obtained are indicative of the thermal interface conductance between metals an…
Just previously in the advisor's laboratory, study of the magnetic properties of Co1-xMnx-yNiyC2?2H2O was initiated. Based on that work, it was clear that several additional compositions at least need to be prepared and measured in order to (a) complete the survey of two-dimensional composition space, and (b) accumula…
In order to meet the requirement of Water Pollutant Discharge Standard of Pulp and Paper Industry which was implemented from May 1, 2009, effective shallow ions air-flotation flocculation was adopted to be as the advanced treatment. It was proved that the treatment efficiency can meet the requirements of the new stand…
Particulate fillers are of considerable interest, not only from an economic viewpoint, but as modifiers especially the physical properties of the polymer. A notable advance in the polymer industry has been the use of fiber and particulate fillers as reinforcements in polymer matrix. Over the last few decades, the cons…
The aqueous solution polymerization of acrylamide and methacryloyl oxygen ethyl trimethyl ammonium chloride (DMC) under microwave irradiation was studied, and a dry strengthening agent for paper which was made from cationic polyacrylamide was synthesized. The factors influencing on polymer molecular weight and paper d…
Fractures, faults and joints in chalk and limestones
L"allochtone ardennais, constitue l"une des trois unités structurales du front Nord de la Chaîne varisque.Ce front de chaîne est formé par une puissante série sédimentaire présentant des variations de la puissance et de la nature des séries associées à la dynamique extensive de marge passive qui a perdurée au moins ju…
This work is a synthesis route for a ceramic oxide precursor Cr3+ / Ti4+ using Ti(IV) isopropoxide and Cr(II) acetate dihydrate in tetrahydrofuran (THF) and triethylorthoformate solvents which generates titanates Cr2Tin-2O2n-1 through thermal treatment. Elemental analysis, IR, XRD and TG/DTG as well as the products fr…
Recently, Si nanowires are receiving much attention for biosensing because they offer the prospect of real-time, label-free, high sensitivity sensing. The most popular approach to silicon nanowire fabrication uses electron-beam lithography to define silicon nanowires on SOI wafers. While this approach has the advantag…
The interest of unconventional techniques for nanofabrication has grown exponentially in recent years due to demanding equirements in micro/nanoscale structures \nfor photonics, microfluidics, biotechnology, and flexible electronics. Soft lithographic \nmethods use elastomeric stamps, molds and conformable photomasks…
A mean to better understand the complex phenomena involved in the cutting process is to better qualify the behaviour law used in the simulation of machining processes (analytical and finite element modelling).The aim of this paper is to present the choices made regarding the behaviour law. Our study is based on a stra…
We have described the components supply chain building blocks in Part 2, Chapters 4-9, highlighting the key issues, opportunities and challenges in managing a total supply chain. These features have been further explored with the current trends in Part 3. Now the key question is: how are these building blocks interfac…
The best way to ensure smooth implementation is to start considering imple mentation issues at the initiation of the project. Only then will the Implement phase of the framework be focused on updating the information and perform ing the tasks, rather than thinking of last-minute ways to appease the users.