Materials Literature
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beta-Ti alloys with plasticity driven by dislocation glide suffer from a lack of work hardening, which is most of the time a major drawback. In this work, first attempts on the design of a new family of Ti alloys with improved strain hardening rate have been performed on two specific alloys. Those alloys, namely Ti-12…
Cellulose nanofibers can be considered for biomedical application as cellulose presents low toxicity, biocompatibility and excellent mechanical properties, which make it an excellent candidate for ...
The cogging torque of a permanent-magnet motor is an oscillatory torque that always induces vibration, acoustic noise, possible resonance and speed ripples, and its minimization is a major concern for electric motor designers. This paper presents an effective approach for the cogging torque reduction of interior perma…
Research includes Technology for the production of medium -density fiber board made from old newspaper and finding the best conditions for the manufacture of the fiber board and the required specifications. was reached methods produced industrially. The research aims to study was effect of newspaper fiber mixed with c…
É extensa a bibliografia dedicada a potenciais aplicações de materiais com mudança de fase na regulação térmica e no armazenamento de calor ou de frio. No entanto, a baixa condutividade térmica impõe limitações numa grande diversidade de aplicações com exigências críticas em termos de tempo de resposta curto ou com re…
Antecedentes:La plata se encuentra en todo el mundo, pero la mayor parte se produce en Mexico. Es usada para la fabricacion de monedas, adornos, cuchillerias, objetos y joyeria;las sales de plata se emplean en la medicina. A partir del siglo XX ha sido ampliamente utilizada como plata coloidal (PC), potente microbicid…
Last years, increasing attention has been dedicated to the synthesis of various BaTiO3 nanostructures, such as nanoparticles, nanorods, nanowires and nanotubes, because dependence of their ferroelectric and piezoelectric properties on their dimension and size [1, 2]. The phase transition from ferroelectric to paraelec…
Decorative concrete floor coatings Sedona. Epoxy and Polyaspartic coatings for garage floors and concrete commercial properties.
β titanium alloys are becoming more and more used in several application fields thanks to their unique combination of properties. However, they still suffer from a lack of work hardening resulting in a rapid strain localization and low ductility levels, which can be a serious drawback in applications requiring plastic…
Further efficiency enhancements in organic solar cells require a deeper understanding of the charge generation and transport in the cell as well as the employment of advanced light trapping mechanisms. Both electronic and optical device models for organic solar cells have been developed already in the past. This paper…
Background: Genkwadaphnin was isolated from the flower buds of Daphne genkwa, showing cytotoxicity against several cancer cell lines. Objectives: To investigate the effect of Genkwadaphnin on SCC cells. Methods: SCC12 cells were treated with Genkwadaphnin and effects were evaluated. Results: Genkwadaphnin treatment re…
In order to improve the selective oxidation reaction of gaseous ammonia at a low temperature, various types of metal-impregnated activated alumina were prepared, and also physical and chemical properties of the conversion of ammonia were determined. Both types of metal (Cu, Ag) impregnated activated alumina show high…
Встановлено вплив температурно-часових параметрів відпалу на структуру та механічні властивості сплаву АМг6л з домішками кремнію вмістом 1 %. Плавки проводили в лабораторній печі опору в графітошамотному тиглі. Використовували такі шихтові матеріали: алюміній марки А99, лігатури Al—Mg, Al—Zr, Al—Be, Al—Ti, Al—Si. Отри…
94Zr occupies the particularly interesting region just at the border between the weak and main component of the s-process,which contributes to about half of the elements heavier than iron.Thereforethe single neutron capture reaction of 93Zr is very important for the s-process.The(n,γ)cross section of 93Zr is also of g…
PROBLEM 8.1.Covariant Derivative and Connection a. Using Problem 5.4 we calculateXf-∫ X f= lim d0 1 [f(()) -f(p)] -lim d0 1 [f(()) -P(, p, ())f(p)] = , = lim d0 1 [P(, p, ())f(p) -f(p)] = d ds P(, p, (s))f(p) s=0 = cn this is in the normal direction by Problem 5.4 and since is a tangent vector cn must be the normalFro…
以Ni1/3Co1/3Mn1/3（on）：（2）和Li2CO3为原料，在空气气氛中，经过高温热处理工艺制备了高结晶度的锂离子电池正极材料LiNi。力Co1/3Mn1/3O2（1）。正交试验确定最佳工艺条件为：20．3mol，n（Li）：n（2）=1．2，于950℃反应13h。电化学性能研究结果表明，在2．7V～4．6V，电流密度16mA·g“时，1的首次放电比容量为203．4mAh·g-1；经16mA·g-1循环2次，32mA·g-1循环9次，80mA·g以循环20次后放电比容量为164．ImAh·g-1。
Nano-crystalline titanium dioxide is mixed into concrete in order to reduce nitrogen-oxides in urban areas, due to its photocatalytic activation of ultraviolet light. Therefore, it is important to ...
Lalou, Claude; Brichet, Evelyne; Leclaire, Héloïse; Duplessy, Jean-Claude (2013): (Table 4) Radiochemistry in green nontronitic clay in DSDP Holes 54-424, 54-424B and 70-506C [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.816012, In supplement to: Lalou, C et al. (1983): Uranium series disequilibrium and isotope…
Ce travail de these concerne l'elaboration et la caracterisation de nanoparticules metalliques. La fabrication des nanoparticules comporte deux grandes etapes. La premiere consiste a fabriquer des couches minces en utilisant une methode de depose par pulverisation cathodique. Lors de cette etape, nous nous sommes inte…
采用磁控溅射法在Si（100）衬底上制备了Zn0.98Cr0.02O薄膜。利用X射线衍射仪（XRD）、X射线光电子能谱分析仪（XPS）、扫描电子显微镜（SEM）和综合物性测量系统（PPMS）对所制备的样品进行了结构、成分、形貌和磁性能分析，研究了衬底温度对薄膜的结构、形貌和磁性能的影响。XRD分析表明，Zn0.98Cr0.02O薄膜样品具有纤锌矿结构，呈c轴择优取向生长；XPS显示薄膜样品中的cr离子是＋3价。磁性测量表明，Zn0.98Cr0.02O薄膜具有明显的室温铁磁性，且随着衬底温度的升高，薄膜的铁磁性逐渐减弱。