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。
Polymorphisms in sheep PrP (prion protein) gene are known for scrapie susceptibility. We sequenced part of PrP exon 3 gene in 92 autochthonous Istrian (IS) and 38 crossbred sheep (CBS). ARQ, ARR and AHQ alleles were predominant with frequency of 0.674 (0.526), 0.228 (0.132) and 0.082 (0.263) in IS (CBS), respectively,…
In this study we report on the results of calculations on [60]fullerene derivatives. The semi—empirical methods are used to analyze the linear and non—linear optical properties of [60]fullerene‐chromophore dyads of different electron—donor nature. The investigated dyads are composed of [60]fullerene covalently linked…
International audience
Injection molding represents such a way of polymer processing that requires injection of polymer melt into the mold cavity with very high injection rate. The fluidity of polymers is affected by many parameters (mold design, melt temperature, injection rate and pressure). The main objective of this paper is the study o…
La distribución y el crecimiento de los líquenes están condicionados por diferentes factores ambientales, entre estos la variación en gradientes altitudinales. En la cordillera Oriental de los Andes de Colombia, no se han realizado estudios sobre zonación altitudinal de líquenes. En este trabajo se estudiaron las vari…
In this article we used our own MATLAB algorithm based on the transfer matrix method (TMM) to simulate the transmission of a one-dimensional photonic crystal composed of two layers: A = SiO2 and B = TiO2 with the corresponding refractive indexes nA = 1.45 and nB = 2.65. The studied structures were generated starting f…
Aqueous and ethanolic extracts of Piliostigma reticulatum, a herb widely used for the treatment of diarrhea in southwest Nigeria, was challenged with clinical isolates of Escherichia coli, Shigella dysenteriae, Salmonella typhimurium, Staphylococcus aureus and Pseudomonas aeruginosa. The ethanol extract exhibited the…
Electrical machinery especially electric generators which are the main parts of any electrical network, through the time and everyday functions like any other electrical devices experience a series of electrical, mechanical and thermal stresses. Continuous of this transient and stable tension over the time, cause last…
The analytical model of probe impedance due to multilayered conductive structures is established using the reflection and transmission theory of electromagnetic waves in eddy current testing. The electromagnetic field in the region under considecation consists of the excitation field of the coil and the eddy current f…
To predict the behaviour of concrete structures under impact and explosive loading numerical models are often used. The increase in tensile strength with increasing loading rates is already included in most dynamic concrete models. Often it is assumed that for the fracture energy and the characteristics of the fractur…
Thin films are an important and sometimes essential component in many optical and electrical devices. As part of their studies in optics, students receive a basic grounding in the propagation of light through thin films of various configurations. Knowing how to calculate the transmission and reflection of light of var…
This paper deals with the improvement of weld metal toughness by formation of fully acicular ferrite microstructure in laser welding. The addition of 5-20% oxygen into the He shielding gas for laser welding of Ti added base plate formed Ti containing oxide inclusions in weld metal, which acted as the efficient nucleat…
Four kinds of Ce3+ exchanged montmorillonites(Ce/MMTs) were prepared by an ion-exchange reaction, and characterized with energy dispersive X-ray analysis (EDX), X-ray difference (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron micros-copy (SEM). The surface properties and antibacterial activity of C…
与铜添加剂做的基于 Ni 的催化剂在改革反应的乙醇蒸气在他们的角色上被学习。Cu 内容，包含 Al2O3-SiO2 的支持种类， Al2O3-MgO， Al2O3-ZnO，和 Al2O3-La2O3 的效果，在催化表演上被学习。由 TPR， XRD， NH3-TPD， XPS，和 TGA 的描述显示催化剂 30Ni5Cu/Al2O3-MgO 和 30Ni5Cu/Al2O3-ZnO 比 30Ni5Cu/Al2O3-SiO2，以及好焦炭抵抗有许多更高的 H2 选择。为 30Ni5Cu/Al2O3-MgO 催化剂的 H2 选择在 450 ° C 是 73.3% 并且，为 30Ni5Cu/Al2O3-ZnO 催化剂在 600 ° C 增加…
WATER95 is an open source implementation of IAPWS95, the current standard formulation of the properties of water and steam forscientific use. It is written in MATLAB and is aimed primarily at educational use. Its value for teaching standard processes with wateras a working medium is shown on the basis of worked exerci…
An effective method has been developed for synthesis of neutral merocyanine dye 4 from (4-nitrophenyl)malondialdehyde. Merocyanine 4 was used as a basic building block for preparation of unsymmetric cyanine dyes 9 and 10, both derived from the same aromatic malondialdehyde. With the cyanine 10, pH-dependent affinity t…
Automotive emission regulations are becoming more and more stringent. The NOx standards still pose a formidable challenge. As we known, lean combustion is one of the best ways to reduce fuel consumption at part engine load. However, it produces higher NOx emissions. The reasons are high combustion temperature and exce…
Femto-second laser can form metallic nano periodic structures on metal parts near there ablation
This paper summarizes the research that is being carried out at the Universities of Coimbra and Rio de Janeiro, on fibre reinforced concretes at high temperatures. Several high strength concrete compositions reinforced with fibres (polypropylene, steel and glass fibres) were developed. The results of compressive tests…
As a new type of non-porphyrin photodynamic drugs,naturally occurring hypocrellins,including hypocrellin A(HA)and hypocrellin B(HB),present many advantages over porphyrin,such as single and definite chemical composition,ease of purification.In this paper,we review the development of hypocrellin-based photosensitizers…