Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
We prove the uniqueness of the self-similar profile solution for a modified Boltzmann equation describing probabilistic ballistic annihilation. Such a model describes a system of hard spheres such that, whenever two particles meet, they either annihilate with probability α∈(0,1) or they undergo an elastic collision wi…
In this chapter, we describe some of the main concerns when it comes to formulating emulsions. This includes the choice of ingredients, such as emulsifiers, oils, preservatives, and thickeners. This is done with a focus on how these ingredients can give the desired properties of the emulsions, such as texture, flavor,…
Nanotechnology belongs to the key innovative technologies for powder production. Ultrasonic spray pyrolysis is a versatile method for the formation of nanosized particles of metals, oxides and composites. This work deals with Ag, Cu and Au nanoparticles formed by ultrasonic spray pyrolysis using the horizontal and ver…
Time dependence of the parameters of a focal spot when performing the resonance focusing of a plane TE-wave with a dielectric microcylinder (refractive index n = 1.59) is investigated using the FDTD-method. It is shown that as the picosecond pulse passes through the cylinder, the focus width decreases, whereas the int…
The microstructure of a billet from the Al-Mg-Si system after processing by the method of Multi-ECAP-Conform was investigated and its mechanical and electrical properties were defined. The main feature of this method is the combination of two techniques of equal channel angular pressing (ECAP): pressing with parallel…
To date, ex-situ carbonation of ultramafic ores such as serpentinite has been studied extensively on the laboratory scale. In Australia, the Mineral Carbonation International (MCi) project was launched in 2013, with funding from the New South Wales (NSW) State and the Australian Federal Governments as well as an indus…
Experimental-computational investigation of dissipative factors in the process of impacting and penetrating of barriers made of woven aramid fiber composites is presented. Various types of 2D woven layers (13 types) are considered, as well as some characteristic types of transversal sewing as modifications of 3D weavi…
The corrosion inhibition of Pistachio Essential Oils (PEO) on carbon steel in 0.5 M H2SO4 was investigated by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Results showed that PEO inhibited carbon steel corrosion in a 0.5 M H2SO4 solution and indicated that the inhibition…
International audience
The presence of microorganisms is often cause of concerns; in water systems, it can lead to disease transmission (e.g., Legionnaires’ disease), in addition to the risk of bacterially induced corrosion, and to inefficient heat transfer due to coating of surfaces with heavy microbial growth (biofilm). The former problem…
Over the course of 150 years since the construction of Japan's first cast iron bridge in 1868, Japan has become one of the most advanced countries in terms of steel structures. This advance is attributed largely to the contributions made by high performance steels. In Japan, steel material innovations have enabled pro…
Welding process variables play a significant role in determining the quality of a weld joint. The joint quality can be defined in terms of properties such as weld- bead geometry, mechanical properties and distortion. In this paper, an experimental study was conducted to investigate the influence of welding parameters…
O Brasil e o nono maior produtor mundial de arroz e o maior fora da Asia. A casca do arroz e o subproduto mais expressivo do processo de beneficiamento do arroz e seu volume representa cerca de 20% da massa do arroz em casca. Esta casca pode ser considerada uma materia-prima de baixo custo, de dificil reaproveitamento…
Load path optimized layup design using fiber patches requires special patch shapes to avoid gaps and overlaps. A study on the influence of different patch geometries on mechanical properties is shown.
摘要： Lamb波具有传播距离远、衰减小等优点，能在板结构中实现大范围、高效率的损伤检测和监测，在无损检测和结构健康监测领域具有极大的应用潜力。针对板结构大范围健康监测问题，为了能周向一致地激励出模态单一Lamb波S0模态，提高缺陷成像能力，基于磁致伸缩效应，设计并制作一种全向型S0模态磁致伸缩传感器，由印刷电路板线圈，圆柱磁铁，圆形镍片组成。试验验证研制的传感器能够在铝板中有效激励出单一的S0模态，并测试其频率响应特性以及全向性，结果表明设计传感器中心频率为365 kHz，并具有较好的全向性。进一步利用研制的全向型S0模态磁致伸缩型传感器组成稀疏传感器阵列。采用自激自收的方式对铝板结构中缺陷进行检测。利用离散圆弧成像与数据融合算…
近年，注目の集まる海底資源の開発において深海構造物へのコンクリートの適用性を探るための基礎研究として，深海並みの高水圧が作用した場合のセメント硬化体の破壊挙動の進展や機構の把握を試みた．セメントペーストによる破壊形状の比較から水セメント比と空気量の差異が破壊の進展の度合いに影響を及ぼすことが示唆された．モルタルによる体積ひずみの時間変化の測定から，空気量の差異が体積ひずみの収縮側への増加量に影響を及ぼすことが示唆されたと共に，高水圧下で長時間静置した後，体積ひずみ変化が膨張側に転じる傾向があることが推察された．
ABSTRACT Tylophora indica (Burm. F.) an important medicinal plant of India, reported to comprise variety of medicinal metabolites used in different ailments. Our aim of the present review is to explore the traditional use of Tylophora indica . It has been used for the treatment of bronchial asthma, jaundice , inflamma…
This work demonstrates a novel approach to design and optimization of rare-earth free magnetic materials for targeted properties by effectively using various computational and statistical tools. From the open literature, we defined the alloying elements and bounds of their concentrations to develop a new system of Aln…
Holmium (Ho 3+ ) substituted Yttrium Iron Garnets (YIGs) Y3-xHoxFe5O12 (x = 0.1, 0.3, 0.6, 0.9, 1.5) prepared by conventional ceramic technique are reported in this article. X-rays diffraction data showed well-defined peaks of Holmium-YIG. The crystallite size calculated by Scherer formula increased from 66 nm to 123…
Basing on the comprehensive studies of acoustic properties for NaBi(MoO 4 ) 2 crystals, we have determined the full matrices of elastic stiffness and compliance coefficients and constructed cross sections of acoustic-wave velocity surfaces by the principal crystallographic planes. We have shown that the slowest acoust…