Influence of Discrete Particle Diameter and Separating Velocity on the Separation Efficiency of Wave-Plate Separator Including Coalescence and Breakup Model

Wave-plate separators are widely used to remove fine liquid droplet entrained in gas flow based on the inertia force difference of gas and liquid phase. The CFD method is adopted to simulate the separating process of wave-plate separator, the models and parameters used in the simulation were verified through comparing with the experimental data. It is validated that including the droplet coalescence and breakup model, which take place during the separating process, can depict the separating process better. The results indicate that the separation efficiency of wave-plate separator presents two peaks with the increasing of the separating velocity, the first peak is caused by gravity and the second peak is formed for the inertia separation, whereas with the increasing of the droplet diameter, the two peaks are no longer distinct. In addition, the separation efficiency is changed little with droplet diameter variation if the wave-plate separator is worked on the corresponding velocities of the two peaks, and changed a lot at other velocity. Researching results about droplet breakup also showed that only large diameter droplet will break up at lower flow velocity, and the droplet breakup diameter became smaller and smaller with the increasing of the flowing velocity.     

Enhanced deep-red emission in donor-acceptor molecular architecture: The role of ancillary acceptor of cyanophenyl

Cyanophenyl as ancillary acceptor to modify donor-acceptor compound,plays an effective role in shifting the emission color to deep red and maintaining the luminescent efficiency.     

一种新型稀土配合物Eu(TTA)2(N-HPA)Phen的发光特性研究

合成了一种新的含有3个配体的稀土配合物Eu（TTA）2（N-HPA）Phen（TTA-噻吩甲酰基三氟丙酮，N—HPA=N-苯基邻氨基苯甲酸，phen=邻菲咯啉）。将稀土配合物作为掺杂物与基质PVK按照不同质量比混合共溶，旋涂成膜。通过荧光光谱，分析了薄膜的发光特性，并将其应用于有机电致发光。研究了PVK和Eu（TTA）2（N—HPA）Phen之间的能量传递，并且制备了发光层为PVK：Eu（TTA）2（N—HPA）Phen，结构为ITO／PVK：Eu（TrA）2（N—HPA）Phen／BCP／Alq3／Al的多层器件，发现改变PVK和稀土配合物的掺杂比，可以不同程度地抑制PVK的发光，最终得到纯的Eu^3＋的红色发光。实验结果证明，在PVK：Eu（TTA）2（N—HPA）Phen=5：1的质量比下，从PVK到稀土配合物之间存在充分的能量传递。     

焙烧的P-25 TiO2微结构特性和光催化活性

光催化氧化能把有机污染物完全转化为二氧化碳和水,被认是有广泛应用前景的水处理方法[1,2]．但是,这一方法真正在污水处理中实际应用,有许多问题仍待解决,其中光催化剂的活性和稳定性需要进一步改善．研究最多的光催化剂是TiO2,影响其催化活性的因素很多[3,4],本工作用XRD、TEM、BET研究了烧结的P－25TiO2微结构特征,并用苯酚光催化降解作探针反应,得到了很有意义的相关信息．1材料和方法1．1催化剂商品P－25TiO2是从Degussa公司购买．样品分别经不同温度和时间焙烧,具体条件见表1．1．2催化剂表征XRD用于测定样品品相…     

Separation, identification, and interaction of heparin oligosaccharides with granulocyte-colony stimulating factor using capillary electrophoresis and mass spectrometry

A capillary electrophoresis (CE) method was developed for the separation of heparin oligosaccharides compatible to study the interactions between the oligosaccharides and granulocyte-colony stimulating factor (G-CSF). Unfractionated heparin was eliminitively degraded to heparin oligosaccharides by an endolytic heparinase. The degraded smaller oligosaccharides (M(r) < 1000) were baseline-separated by CE under a 50 mM phosphate buffer (pH 9.0) in 10 min. Standard heparin disaccharides and larger oligosaccharides (1000 < M(r) < 8000) were all separated under optimized separation conditions. Compared with standard heparin disaccharides, smaller oligosaccharides contained one nonsulfated, two monosulfated, and two disulfated disaccharides, but trisulfated disaccharides were not found. The smaller oligosaccharides were also identified and molecular mass was deduced by electrospray ionization-mass spectrometry (ESI-MS). Furthermore, interactions between G-CSF and the oligosaccharides were studied by using capillary zone electrophoresis (CZE) under the above separation conditions. It was found that larger oligosaccharides could interact with G-CSF while smaller oligosaccharides were not observed to bind to G-CSF under the experimental conditions. In conclusion, the purified heparinase could selectively degrade heparin into oligosaccharides and the interaction between G-CSF and heparin was correlated with the chain length of heparin.     

圆屏(球)和圆环菲涅耳衍射的解析表达式

在标量衍射理论的基础上，给出了圆屏（球）和圆环菲涅耳衍射的振幅及光强解极表达式。计算了光强分布曲线，并将计算实例和有关资料中的实验与计算结果进行了比较。同时指出所谓无衍射光束实际上是一种菲涅耳衍射现象。     

Study of the effect of ligands on the fluorescence properties of terbium ternary complexes

Four ternary complexes of Tb(III) were synthesized by introducing the first ligand (L₁) (N-phenylanthranilic acid (N-HPA), α-furoic acid (FURA)) and the second ligand (L₂) (1,10-phenanthroline (Phen), 2,2′-dipyridyl (Bipy)), respectively. These complexes were characterized by elemental analysis, infrared spectra, XRD, UV spectra and fluorescence spectra. The effect of L₁ and L₂ on the fluorescence properties of terbium complexes was discussed. It showed that all the complexes exhibited ligand-sensitized green emission. The fluorescent intensity increased in the sequence of Tb(FURA)₃Bipy < Tb(N-PA)₃Phen < Tb(FURA)₃Phen < Tb(N-PA)₃Bipy. It indicated that L₁ affected fluorescence properties of the complexes differently when the corresponding L₂ altered. Meanwhile, the influence of L₂ on the luminescence properties of the complexes also depends on L₁. The results showed that L₁ and L₂ affected each other and worked together as a whole. The matching of L₁, L₂ and Tb³⁺ ion is very important to the luminescence properties of Tb(III) ternary complexes.     

A Lightweight Semi-quantum E‑payment Protocol Based on Blockchain

International Journal of Theoretical Physics - How to apply E-payment based on quantum cryptography to our daily life is a significant problem. Inspired by the semi-quantum protocols, we present a...     

Electrochemical Deposition of Azobenzene‐Containing Network Films with High‐Contrast and Stable Photoresponse

To fabricate stable photoresponsive films and devices, a cross‐linked network that firmly fixes the position of the chromophores is an ideal structure, because aggregation and/or phase separation effects of chromophores in matrix can be effectively restrained in such robust films. Herein, the in situ electrochemical deposition (ED) of azo‐based precursors containing multielectroactive carbazole units is utilized to construct highly cross‐linked photoresponsive films. 2‐(4‐(9,9‐bis(6‐(9H‐carbazol‐9‐yl)hexyl)‐9H‐fluoren‐2‐yl)phenyl)‐1‐(4‐(9,9‐bis(6‐(9H‐carbazol‐9‐yl)hexyl)‐9H‐fluoren‐7‐yl)phenyl)diazene (BFCzAzo) with high solvability in electrolyte solution, high electroactivity, and highly efficient photoresponsive ability is synthesized by Suzuki coupling reaction as a kind of ED precursor. A highly cross‐linked photoresponsive film is fabricated by ED method using BFCzAzo as ED precursor. The film can be patterned in large area by irradiation with interfering laser beam (355 nm), and the pattern possesses excellent thermal stability and insoluble ability in both organic and inorganic solvents. Excellent reversibility of the nanostructures is demonstrated by irradiation with 550 nm laser beam.