Materials Literature
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To achieve the controllable manufacturing of electrospun nanofibrous scaffolds,the effects of evaporation rates of different solvents on the fiber diameters and deposition configurations of electrospun nanofibers were investigated experimentally.Firstly,polycaprolactone(PCL)was respectively dissolved in various solven…
The solid–liquid interface, which is ubiquitous in nature and our daily life, plays fundamental roles in a variety of physical–chemical–biological–mechanical phenomena, for example in lubrication, crystal growth, and many biological reactions that govern the building of human body and the functioning of brain. A surge…
The biocompatibility and biodistribution of magnetic nanoparticles(MNPs)in vivo are essential to ensure their safely clinical application.We have studied these aspects with our 3-aminopropyltriethoxysilanecoated magnetic nanoparticles(APTS-MNPs)formulation,which can be used as magnetic induction hyperthermia media.Cha…
有 4.5 at.% Nb 的 TiNiNb 合金的微观结构和性质上的瞬间增加的影响全身地被调查了。试验性的结果显示瞬间的一致分发在边界并且短剥去的质地由丰富的罚款组成驱散的谷物压抑粗糙的 -Nb 粒子的外观 Nb 富有的粒子出现在谷物边界附近。合金的收益力量由于 Nb 和瞬间加强的答案从 450 ～ 600 MPa 被提高，当瞬间内容是 0.5 at.% 时，延伸到达了 18% 。同时，合金的形状记忆效果被瞬间增加也显著地改进。有 0.5 at.% 瞬间的合金的最大的可重获的紧张在 8% 附近并且到达了 NiTi 二进制合金的高水平。这新奇高张力合金正在答应被用于结合高质量的要求的高压力试管和宏规模。
Tb3 +doped borate,silicate and phosphate glasses and glass matrixes were prepared by high temperature melting technology. According to the UV-Vis transmission spectra,the experiment oscillator strengths of Tb3 +from7F6to5D3and5D4were calculated,and the luminescent properties of Tb3 +in different glass matrixes were ex…
基于水泥的材料的缺点能被微生物引起的碳酸盐降水恢复，但是处理以前的研究以便加速矿化作用的结束都在细菌的液体采用沉浸的途径，它不能在 situ 修理被申请。我们由基于水泥的材料调查了微型环境，微生物的 basophil 驯服和微生物的有效吸收，并且采用了水花技术在基于水泥的材料的表面上在缺点上在 situ 修理进行并且提高修理过程操作性。通过在由喷洒细菌液体的缺点的微生物引起的碳酸盐降水，钙碳酸盐电影的 100 m 厚度能在 3 ～ 5 天以内在样品表面上并且在缺点洞微型环境被扔。标本表面的毛状的水吸收系数是 77% 比在修理前的价值低。修理效果是显著的它使进行所在地的修理可能。
Based on the commercial computational software, a three-dimensional finite element model to simulate the thermo-mechanical behaviors in a nuclear fuel rod is established; By taking into consideration irradiation-swelling of the pellet and the irradiation damage effects in the cladding together with the coupling effect…
Taking dimethyl terephthalate(DMT), 1, 4-butylene glycol(BG) and polytetrahydrofuran(PTMG) as main raw materials, a series of PBT/PTMG poly(ether ester) thermoplastic elastomers were prepared with catalysts of tetrabutyl titanate, tetrabutyl titanate/magnesium acetat, tetrapropyl-zirconium and zinc acetate/antimony tr…
* Corresponding author (fanyaw@163.com) Abstract During an extensive survey of diatoms from Xingkai Lake, China, one unusual species of the genus Gomphonema was dis - covered. Detailed morphology of this species is presented using light (LM) and scanning electron microscopy (SeM). these specimens are described as new…
Dispersion corrected density functional theory(DFT-D2) were employed to investigate the distribution of Al in the framework of H-[Al]MOR and the strengths of Brnsted acid sites by NH3adsorption. Thermodynamically,the most favorable site for distribution of Al is T2O5,followed by T4O2,T1O7 and T3O1,which are a little…
在 liquid–liquid 系统，在液体的底层对为反应的对方无法接近。由增加阶段转移催化剂的小数量，反应能被使可存取、加速。现在的学习包含阶段转移由第四级的铵高锰酸盐(tricaprylyl 甲基铵高锰酸盐) 的 2-methyl-1-butanol 的催化氧化。尝试是在同类、异构的条件下面比较动力学。实验在一个批反应堆被进行在同类的条件下面决定动力学。困惑的 borosilicate 鼓动了反应堆被用来在异构的条件下面发现改进因素和动力学。在同类、异构的条件下面决定的率常数同意了很好。氧化被发现是关于每反应物，第四级的铵高锰酸盐和白酒的第一份订单，导致全面的秒顺序率表情。Aliquat336 (tricaprylylmeth…
Sr( MoO4)x( WO4)1- xsolid solution microcrystallines were synthesized by hydrothermal method.The structure,morphology,and photoluminescent properties of the microcrystallines were studied by X-ray powder diffraction( XRD),Fourier transform infrared spectroscopy( FT-IR),scanning electron microscopy( SEM),and fluorescen…
A new type of reduced graphene oxide-CuInS 2(rGO-CuInS 2) composite was successfully synthesized via solvothermal method.The structure of composite was characterized by X-ray diffraction(XRD),Raman,UV-Vis(UV-Vis),photoluminescence(PL) spectra,transmission electron microscopy(TEM) and high-resolution transmission elect…
Whereas the demand on effective treatment options for chronic heart failure is dramatically increasing, the recent recognition of physiological and pathological myocyte turnover in the adult human heart provided a fun- damental basis for the therapeutic regeneration. Divergent modalities were experimentally introduced…
Polymer dispersed cholesteric liquid crystal samples with large droplets were made,and the droplets had strangegemtexture by polarizing microscope.The new vertical helix and parallel helix configuration in the polymer disperse cholesteric liquid crystal droplets were proposed.Considering the bipolar and radiation conf…
Magnetic nanoparticles (MNPs) are intensively researched due to their high potential in biomedicine, catalysis, and high density information storage. FePt NPs could be an alternative for commonly used magnetite NPs and the synthesis of FePt NPs is an active area of research. The challenge is to increase the Fe content…
It has established the FEM model of nine roller horizontal straightening for 60 kg / m heavy rail,and simulated the straightening process by using ANSYS Workbench. The comparative analysis of residual stress after straightening with the reference of the straightening speed at 1. 2 m / s was done,which was found that t…
With more and more radionuclides were used, radionuclide wastes could also cause a threat to the environment and human health. Metal-organic frameworks(MOFs) as a new material have widely used in gas storage, catalysis, sensing, nonlinear optics, separation and biomedical research because of their large surface area,…
biomagnesium 合金被认为由于它的好机械相容性，生物相容性，生物安全和可被细菌破坏的特征是最潜在的可被细菌破坏的金属材料之一。然而，在生理的环境和低机械性质的高降级率的二个主要问题阻止 biomagnesium 合金的发展。在现在的工作， Mg-Zn-Y-Nd 合金的样品被周期的挤出压缩(CEC ) 和相等的隧道准备尖紧迫(ECAP ) 。微观结构，合金的机械性质和它在模仿的身体液体(SBF ) 的腐蚀行为被评估。结果表明那 Mg-Zn-Y-Nd 合金与测微计尺寸和缩放 nano 的秒阶段的同类的分发由 equiaxial 罚款谷物结构组成，它被动态再结晶在 ECAP 和 CEC 期间引起。合金的腐蚀抵抗被改进。张力并且…
Poly (lactide-co-glycolide )-poly(ethylene 乙二醇)-poly(lactide-co-glycolide)(PLGA-PEG-PLGA ) triblock 共聚物是作为 macroinitiator 和亚锡的 octoate 与木钉通过 LA 和 GA 的戒指洞聚合被综合催化剂。进在水的答案的微粒自我装配的 amphiphilic 共聚物，和形成的 hydrogels 作为在相对高的集中的温度的增加(> 15 wt%) 。hydrogel 的有利 degradability 被证实由在 vitro 并且在 vivo 降级实验。好细胞并且 thermogel 的 tissular 相容性被…