Materials Literature
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The selection of suitable and indigenous species is a fundamental requirement in developing oil-rich microalgae for biodiesel production. So it is necessary to evaluate the growth characteristics and lipid content of the interested microalgae species and obtain a basic knowledge about their potential towards biodiesel…
The microstructure and mechanical properties of the α+β type Ti-V-O alloys with high oxygen content were investigated. Ti-(0~10)mass%V-(0.5, 0.75, 1.0)mass%O alloy ingots were prepared using arc melting and hot rolling at 1373 K and 1073 K. The alloys were heat-treated at temperatures varying from 923 K to 1323 K for…
The observation of acoustic enhancement ofthe anodiccurrentin an electropolishing experiment promises to be useful in acceleration of industrial electrochemical processes. Besides the process, however, the surface condition after the electropolishing is of importance as well. This investigation is focused onthe surfac…
In this paper we describe and demonstrate a discrete ordinates sweep algorithm on GPUs. This sweep algorithm is nested within a multilevel comunication-based decomposition based on energy. We demonstrated the effectiveness of this algorithm on detailed three-dimensional critical experiments and PWR lattice problems. F…
It is known that one of the main reasons of the success of manufacturing enterprises is their ability to design and maintain a coherent structure to represent their knowledge, especially the small and medium sized enterprises (SMEs), which are not often organized to manage information efficiently. Several commercial P…
In recent years, changes in life standards have promoted the diffusion of Ready to Cook (RTC) and Ready to Eat (RTE) products for microwave ovens. However, the main limits in microwave (MW) ovens usage are often related to the proper choice of packaging materials suitable for such technology. In fact, packages for mic…
Derivatization of citronellol, citronellal and geraniol into fine chemicals such as isopulegol, hydroxyl citronellal, menthol, geranial esters, esters citronellal and others will escalate the added value of citronella oil. Some products derived from essential oils are widely used for food and fuel additives, pharmaceu…
SCR (selective catalytic reduction) system is continuously being analyzed by many researchers worldwide on various concerns due to the stringent nitrogen oxides (NOx) emissions legislation for heavy-duty diesel engines. Urea-SCR includes AdBlue as urea source, which subsequently decomposes to NH3 (ammonia) being the r…
Thermal equation of state (EoS) of synthetic lawsonite [CaAl2Si2O7(OH)2·H2O] has been established using in–situ X–ray diffraction methods under high pressure and high temperature. Sodium chloride NaCl was used as the pressure standard in the experiments. The unit–cell volumes were measured up to 10 GPa and 973 K after…
Potassium dihydrogen phosphate (KDP) or deuterated potassium dihydrogen phosphate (DKDP) crystals are difficult to machine because they are soft and hygroscopic. Based on the deliquescence nature of KDP/DKDP crystals, a novel polishing method with micro water mist for KDP/DKDP crystals was proposed in this paper. The…
A photoanode with Ga-doped ZnO nanorods has been prepared on F-doped SnO2 (FTO) coated glass substrate and its application in dye-sensitized solar cells (DSSCs) has been investigated. Ga-doped ZnO nanorods have been synthesized by an electric-field-assisted wet chemical approach at 80?C. Under a direct current electri…
The June 2015 shutdown of the Grafenrheinfeld nuclear power plant marks the shift into a new phase of the energy transition, in which all nuclear power plants in Germany will gradually be shut down by 2022. But even with the end of the commercial use of nuclear power, the lights in this country will not go out: As DIW…
Nucleation and growth mechanism of iron oxide nanoparticles on zeolite template and their stability dependence are reported. Hyperfine field resulting from the variation of particle size indicates the effect of zeolite on particles growth; particle size decreases at lower concentration of zeolite. At higher concentrat…
Presented here, the measured transmission of RF/Microwave signals in Energy-Saving Glass (ESG) using a dual-layer bandpass Frequency Selective Surface (FSS). The results demonstrate a wider 1.5 GHz bandwidth, confinement of Wi-Fi 2.45 GHz signals and less loss of heat due to only 9% removed coating. The unit-cell cons…
采用液相超声直接剥离法制备了石墨烯负载纳米Fe 3 O 4 复合材料, 用SEM、TEM对其形貌进行了表征, 利用多功能往复摩擦磨损试验仪考察了石墨烯负载纳米Fe 3 O 4 复合材料在纯水中的摩擦磨损性能。通过SEM、XPS分别分析了磨痕表面的形貌、典型元素的化学状态, 初步探讨了石墨烯负载纳米Fe 3 O 4 复合材料在纯水中的润滑机理。结果表明: 纳米Fe 3 O 4 均匀分布于多层石墨烯片层表面和层间, 粒径为20~90 nm; 其作为纯水添加剂具有良好的减摩抗磨性能, 如试验载荷为10 N, 浓度为0.01wt%的石墨烯负载纳米Fe 3 O 4 复合材料水分散体系润滑时比纯水润滑的摩擦系数和磨损体积分别下降26.7%和3…
International audience
A new approach to solving the task of stability for a circular cylindrical shell under axial compression is presented, taking into account the dynamic buckling. The modification of the algorithm for solving the known problem by the Ritz method is also proposed that allows investigating the effect of geometrical factor…
In this communication, we report anodic porous alumina (APA) template induced crystallization. The APA nanotemplate was prepared on the glass substrate for the hen egg white lysozyme (HEWL) crystal growth. The changes in the lysozyme crystals morphology, namely in the a/c axis ratio, were observed in the crystal grown…
The research on whether can iron ore tailing improve the compressive strength of alkaliactivated slag foaming concrete is conducted. The experiment shows that too little or too much powder from iron ore tailing will reduce the compression strength of alkali activated slag concrete, when powder from iron ore tailing ac…
A temperature-dependent Raman spectroscopic study on Bi 2 ZnOB 2 O 6 crystal was carried out to investigate the structure change of the crystal with the increase of temperature. Raman spectra of crystal Bi 2 ZnOB 2 O 6 were recorded in the spectral range 10–1600 cm −1 at room temperature first. Compared with the vibra…