Materials Literature
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We present results of the synthesis of cobalt nanorods using the polyol process and the mechanism of magnetization reversal. We show that the nucleation step is significantly dependent on the nature of the ruthenium chloride used as the nucleating agent. This allows varying the diameter and aspect ratio of the cobalt…
Forged 316 LNSS has been selected as the main pipe line material used in the third generation nuclear power plants. The oxide scale formed on the forged 316 LNSS after immersion in high temperature pressurized water with 2.3 mg/L of dissolved hydrogen(DH) was studied using scanning electron microscopy(SEM), X-ray diff…
半固体粉末滚动是生产过程的脱衣，它把粉末滚动与在准备高效的金属性的脱衣的一个步骤滚动的半固体相结合。7050 铝合金脱衣的一个总数被半固体粉末滚动准备然后过去常学习处理以后的过程并且评估 treated 以后脱衣的质量。包含 sintering， pre-sinteringcold deformationsintering，并且热滚动的三个处理以后的过程习惯于卷的半固体粉末剥去的过程。结果证明毛孔和 densification 胀大的那两个发生在期间固态 sintering 当 microhardness 增加时。在密度的减少由于毛孔胀大比 densification 的在密度变化上有更大的效果。相对密度在 pre-sinteri…
高张力的腐蚀行为上的微观结构变化的效果低合金(HSLA ) 钢被调查。腐蚀产品层的保护的性质也被探索。试验性的结果表明微观结构的类型在 HSLA 钢的腐蚀抵抗上有重要效果。重量损失， potentiodynamic 极化曲线，和电气化学的阻抗光谱学的测量结果显示有针状的铁酸盐微观结构的钢展出最低腐蚀率。马氏体与多角形的铁酸盐相比展出一个减少的腐蚀电阻。腐蚀产品一致地盖住的针状的铁酸盐标本的表面比另外的二微观结构的那些看起来更稠密、更紧缩，这被发现，并且能提供保护的某数量给钢；因此，针状的铁酸盐标本的费用转移抵抗和模量价值最大。然而，马氏体上的腐蚀产品和多角形的铁酸盐通常松开、多孔、有缺点，并且能提供次要的保护；因此，为多角形的铁酸…
An A1_2O_3-silica fiber support was prepared by first impregnating a Al(NO_3)_3 solution on a silica fiber mat on which sacrificial carbon nanofibers had been formed by chemical-vapor deposition,followed by burning in air.The support was further impregnated with a solution containing NH_4VO_3 and K_2SO_4 to prepare th…
采用恒流极化,SEM,XRD,EIS和Tafel扫描对比研究了Pb-Ag-RE合金阳极在无Cl-和含500 mg/L Cl-H2SO4溶液中的腐蚀行为和析氧行为.结果表明,Pb-Ag-RE阳极在含Cl-电解液中生成的氧化膜层出现＂火山口＂状孔洞,合金基底上分布着大量的腐蚀坑,呈现出明显的局部腐蚀特征.此外,Cl-的存在会减少阳极表面氧化膜层中Pb O2的含量,抑制析氧反应中间产物的生成和吸附,进而增加析氧反应传荷阻抗.因此,500 mg/L的Cl-对Pb-Ag-RE合金阳极的耐腐蚀性能和析氧活性均会造成不利影响,工业生产中应尽量降低电解液中Cl-的浓度.
A ternary zinc(II) complex containing a tripodal ligand tris(2-ben- zimidazylmethyl)amine (ntb) and a cinnamate with composition (Zn(ntb)(cinna- mate))NO3� DMF was synthesized and characterized by physico-chemical and spectroscopic methods. Single-crystal X-ray diffraction revealed that the central zinc(II) atom is fi…
The development of eco-friendly alternative to chemical synthesis of metal nanoparticles is of great challenge among researchers. The present study aimed to investigate the biological synthesis, characterization, anti- microbial study and synergistic effect of silver and zinc oxide nanoparticles against clinical patho…
We report high-efficiency CdTe/CdS core/shell nanocrystals synthesized in water by epitaxially growing CdS shells on aqueous CdTe cores at room temperature, enabled by the controlled release of S species under low-intensity ultraviolet （UV） light illumination. The resulting photo-induced dissociation of S2O2- ions con…
药的差的水的溶解度是在药品的科学的主要挑战之一。在这研究，包含 guanidinium 聚合物基于精氨酸被设计并且综合，并且作为为三模型有机化合物(香豆素，分核和 doxorubicin ) 提高添加剂的溶解度被评估。在 100   的 guanidinium 组集中； mmol/L，聚合物能显著地分别地由 6 褶层和 11 褶层增加分核和 doxorubicin 的溶解度，比精氨酸更有效(2-fold, 和 3 褶层，分别地) 。相反，它香豆素的溶解度上的效果不比精氨酸有效。增溶的效果可以被在 guanidinium 组之间的提高的相互作用在聚合物和芳香的混合物解释。
Molecular detection techniques based on localized surface plasmon resonances shift,surfaced-enhanced Raman spectroscopy,surface-enhanced fluorescence,and plasmon resonance energy transfer are all highly dependent on the intensity of localized electromagnetic fields[1-4].Many different nanostructures were fabricated fo…
XANES and EXAFS spectra in operando condition have been recorded at the XAFS beamline on the most active material, the copper hexacyanoferrate cathodes for lithium batteries. The beam time session was not extremely successful because of problems due to the machine and beamline, and to a cell short circuit. At least a…
The present study investigated the chemical constituents of the roots of Stellera chamaejasme(Thymelaeaceae).One new biflavone glucoside(1),along with other thirteen known compounds(2–14),was isolated by repeated column chromatographic methods and their structures were elucidated on the basis of spectral analyses.The…
The affine Coxeter group(_3,S) can be realized as the fixed point set of the affine Coxeter group(D_4,S) under a certain group automorphism α with α(S) = S.Let be the length function of D_4.We gave an explicit description for all the left cells of the weighted Coxeter group(_3,).Also,we showed that in the the wei…
Chemical treatments are widely employed to improve the fiber-matrix adhesion in composites based on eco-friendly fibers such as flax. To better understand the influence of these treatments on processing behavior, this study characterized the surface chemistry and morphology of woven flax fabrics treated by acetone, al…
In this paper,fast multiple rotation rolling( FMRR) is applied to fabricate a nanostructured layer on the surface of steel 45. The FMRR samples are then Cr-Rare earth-boronized under low-temperature. The boride layer is characterized by using Scanning electron microscopy( SEM) and X-ray diffraction( XRD).Experimental…
A burnup calculation was performed to analyze the Apr`es ORIENT process, which aims to create highlyvaluable elements from fission products separated from spent nuclear fuels. The basic idea is to use nuclear transmutation induced by a neutron capture reaction followed by a β-decay, thus changing the atomic number Z o…
A Ag-glass fiber composite was prepared by a two step process i.e. the glass fibers were pre-plasma treated and then dipped in a nano-Ag suspension. Results of SEM, AFM and XRD examinations indicate that Ag coating on the glass fiber has good overall properties with well uniform appearance.In comparison with the conve…
Objective: To evaluate the feasibility of dynamic contrast-enhanced magnetic resonance imaging(DCEMRI) for predicting tumor response to radiotherapy in patients with suspected primary central nervous system(CNS) germ cell tumors(GCTs).Methods: DCE-MRI parameters of 35 patients with suspected primary CNS GCTs were obta…
Nanoporous gold （np-Au） is an emerging nanostructured material that exhibits many desirable properties, including high electrical and thermal conductivity, high surface area-to-volume ratio, tunable pore morphology well-established surface-binding chemistry, and compatibility with microfabrication. These features make…