Materials Literature
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有磁力地， recyclable Au/Co/Fe 核心壳 nanoparticles (NP ) 成功地在 situ 过程经由一出一步舞被综合了。传播电子显微镜(TEM ) ，精力散 X 光检查分光镜(版本) ，并且电子精力损失分光镜(鳗) 大小表明 trimetallic Au/Co/Fe NP 有三元组分层的核心壳结构一个 Au 核心，合作富人夹层，和 Fe 富有的壳镇静。Au/Co/Fe 核心壳 NP 为氨 borane 的 hydrolytic 除氢作用展出高得多的催化活动(NH3BH3， AB ) 比一金属(Au，公司， Fe ) 或二金属(AuCo， AuFe， CoFe ) 对应物。
Raw moso bamboo (Phyllostachys pubescens) was examined to opti- mize the carbonization and the consecutive air activation procedure. Influence of sample size, nitrogen flow rate, heating rate and final temperature on the carbon yield and the pore structure was investigated for the raw bamboo. The short length cutting…
A highly crosslinked, monodispersed polystyrene(PS) particle was prepared by a seeded batch dispersion polymerization with a monomer absorption method. Prior to polymerization, 1.9 μm monodispersed PS seed particles were treated under an optimum condition of monomer absorption. The effects of divinylbenzebe(DVB) conce…
根据Ni-Mn-Ga合金靶材在磁控溅射过程中各元素溅射产额和靶材成分的不同,对薄膜成分的影响进行了分析,从而制备了马氏体转变温度高于室温的Ni55Mn24.5Ga20.5靶材。针对目前没有标准的Ni-Mn-Ga马氏体PDF卡片,使用模拟结合已有文献的方法对制备的合金X射线衍射峰进行标定。由于差示扫描量热仪（DSC）不容易对薄膜进行相转变温度测定,提出了利用马氏体与母相磁性能的磁矩与温度（M-T）曲线来测定薄膜的相转变温度,并对合金进行了验证。居里温度约为450K的合金的制备,为进一步探索薄膜成分对磁性能的影响提供了实验依据。
In this work, two processing aids, acetyl tri-n- butyl citrate and an alkene bis fatty amide (wax), were investigated for their effects on rheological proper- ties, morphology, thermal transition temperatures, and mechanical properties of the poly(lactic acid) (PLA)/soy protein concentrate blends. Acetyl tri-n-butyl c…
The effect of chemical composition and processing parameters on the formation of acicular ferrite and/or bainite has been investigated.In particular,this paper deals with the influence that N through its combination with V,as V(C,N) precipitates,has on the decomposition of austenite.Likewise,the intragranular nucleati…
在连续热剧降的电镀过程，煤气喷气的擦去被用来控制动人的钢长带的涂层厚度。高速度煤气喷气从嘴槽排出在长带上侵犯，并且在这时刻，擦去动人的脱衣拖的液体涂层层。涂层厚度通常在擦去的流动特征上被影响例如侵犯的压力分发煤气喷气，迫使坡度并且砍表面上的压力分发脱衣。擦去的流动特征煤气喷气上面提及取决于更加两个都，操作的过程调节例如煤气喷气的擦去的嘴压力， nozzle-to-strip 距离和线速度，和几何学仪器象嘴槽的高度那样。在现在的学习，涂层厚度上的嘴的几何学的效果在一个计算液体动力学方法的帮助下被调查。嘴槽的高度在 0.6mm 的范围被改变到 1.7mm。一个有限体积方法(FVM ) 被采用解决二维的、稳定的、可压缩的海军司烧方程。在…
The gas-liquid phase coexistence in a two-dimensional Lennard-Jones system is investigated using Maxwell construction method together with molecular dynamics simulations.The results of phase coexistence in different truncations of the potential are compared with data obtained from the literature,and the corresponding…
Sr, Li and Cu-doped Na1.4Co2O4 based thermoelectric materials were prepared by sol-gel process. The phase constitution of Na1.4Co2O4 based thermoelectric materials was analyzed by XRD. According to DTA-TG curves, the pre-sintering and sintering temperatures of the materials were obtained to be 450 and 850 , respective…
Support vector regression (SVR) combined with particle swarm optimization (PSO) for its parameter optimization, was proposed to establish a model to predict the thermal conductivity of polymer-based composites under different mass fractions of fillers (mass fraction of polyethylene (PE) and mass fraction of polystyren…
Catalytic CO oxidation on platinum group metals exhibits nonlinear phenomena such as hysteresis and bifurcation.Elucidation of the nonlinear mechanisms is important for catalyst design and control of reaction routes.Previous studies have offered initial insights into the local bifurcation behavior of CO oxidation.Howe…
Magnesia zirconia brick containing 11 wt% zirconia was prepared with magnesia and monoclinic zirconia as starting materials in order to replace the chrome-containing materials for RH furnace.The corrosion resistance of magnesia zirconia brick and fused rebonded magnesia chrome brick (short for magnesia chrome brick) t…
Benzyl and anthracenemethyl groups were respectively bonded to the N atoms of 3-aminopropyl functionalized mesoporous SBA-15(APS-SBA-15) to obtain two new base catalysts over which the condensation reaction of benzaldehyde and 2′-hydroxyacetophenone was studied. Good catalytic activities and high selectivities for fla…
Cetyl trimethyl ammonium bromide/sorbitan monostearate(Span-60) microemulsion-based gel(CTAB/Span-60 MBG) having good stability in aqueous solution was successfully prepared.The mass percentage of Span-60 in emulsifier mixture(EM,the mixture of n-butanol and Span-60) was determined.The catalytic activity and stereosel…
La qualità degli oli impiegati in frittura è di fondamentale importanza al fine di contenere le reazioni di ossidazione, idrolisi e polimerizzazione che possono avvenire durante la preparazione degli alimenti. In questo lavoro sono stati indagati i parametri chiave in grado di definire lo stato qualitativo di miscele…
Enantioseparations of methyl mandelate (MMA) and methyl a-cyclohexylmandelate (MCHMA) on perme- thylated b-cyclodextrin (PM-b-CD) chiral stationary phase were explored in detail using high-performance liquid chromatography. The influence of the concentration of organic modifiers, along with the column temperature, was…
Double water-phase polyacylamide(PAM) emulsion has been synthesized by dispersion polymerization of acrylamide(AM) in ethanol/water(90% volume fraction of ethanol) media with poly(vinyl pyrrolidone)(PVP) as the stabilizer,sodium bisulfite and ammonium persulfate as the initiator(I).Influences of polymerization tempera…
我们向接枝汇报一个一般方法到 graphene 上，通过简单沉浸的薄电影电极处理的芳香的分子。大区域的 electroactive graphene 有甲又蓝色(MB ) 的薄电影 grafted 为菸碱腺嘌 dinucleotide (NADH ) 的氧化作为 electrocatalytic 电极被开发了。NADH 的氧化开始从 ? 0.08 V (对 Ag/AgCl ) 在 graphene-MB 薄电影电极，与一个 Ti 金属电极相比在过电位显示出 530 mV 的减少。薄电影有由于他们支持 NADH 电子转移反应的能力在生物传感器和 biofuel 房间答应应用程序的 graphene-MB。
有嵌入的金属性的 Ni nanocrystal (Ni-BaTiO3 ) 的取向附生的 BaTiO3 电影成功地在 SrTiO3 (001 ) 上被制作通过激光的单人赛水晶的底层分子的横梁取向附生(L-MBE ) 技术。高决定传播电子显微镜学(HRTEM ) 和有 Kramers-Kronig 分析方法的电子精力损失光谱(鳗) 被采用描绘微观结构，基本分发和这些电影的电子结构。HRTEM 结果建议 BaTiO3 的结构与 a=0.399 nm 和 c=0.403 nm 的格子参数是四角形的。精力散 X 光检查光谱学(EDX ) 证实了在 BaTiO3 取向附生的电影成功地嵌入的金属性的 Ni nanocrystal。Ni-BaTi…
Ternary Zr49Cu44Al7 metallic glass matrix composite rods with CuZr nano-phase,exhibiting an elastic strain of 1.6% and a high strength of 1.78 GPa,have been manufactured. The structural evaluation of the ternary metallic glass matrix composite under high pressure has been investigated using angle dispersive X-ray diff…