PEV高分子自粘卷材在重庆轨道三号线防水工程中的应用

介绍了PEV高分子自粘卷材的材料性能,阐述了该材料在重庆轨道三号线防水工程中的应用,主要包括卷材在隧道底板、侧墙和拱顶等部位的施工工艺。     

某高档别墅地下室渗漏治理与改进措施

通过对某别墅地下室渗漏水的治理过程,说明防水设计的重要性,特别阐述了应针对具体情况设计科学合理的防水构造的理念。     

Cell Membrane Camouflaged Hollow Prussian Blue Nanoparticles for Synergistic Photothermal‐/Chemotherapy of Cancer

Nanodrug‐based cancer therapy has been actively developed in the past decades. The main challenges faced by nanodrugs include poor drug loading capacity, rapid clearance from blood circulation, and low antitumor efficiency with high risk of recurrence. In this work, red blood cell (RBC) membrane camouflaged hollow mesoporous Prussian blue nanoparticles (HMPB@RBC NPs) are fabricated for combination therapy of cancer. The stability, immune evading capacity, and blood retention time of HMPB@RBC NPs are significantly enhanced compared with those of bare HMPB NPs. Doxorubicin (DOX), as a model drug is encapsulated within HMPB@RBC NPs with loading capacity up to 130% in weight. In addition, DOX loaded HMPB@RBC NPs show pH‐/photoresponsive release. The in vivo studies demonstrate the outstanding performance of DOX@HMPB@RBC NPs in synergistic photothermal‐/chemotherapy of cancer.     

光纤耦合声光调制器键合膜系设计与制备

为了实现超高速的声光调制,该文提出了一种光纤耦合声光调制器键合膜系的设计与仿真方法。利用该方法设计并制作了一款工作频率为200 MHz、10 ns光脉冲上升时间的光纤耦合声光调制器。器件采用TeO2作为声光介质,36°Y 切LiNbO3作为压电换能器晶片,衬底层采用高纯度Cr,键合层为高纯度Au,结果表明器件性能测试良好。     

A Multiscale-Porous Anion Exchange Membrane for Convenient and Scalable Electrokinetic Concentration of Cationic Species

A device able to electrokinetically concentrate cationic samples has many potential medical and industrial applications, but until now has remained undeveloped due to the lack of a commercial anion-permselective material leading to a prohibitively complex fabrication procedure. Herein, a novel multiscale-porous anion exchange membrane (MP-AEM) that enables the convenient and scalable electrokinetic concentration of cationic species is proposed. A mechanically enhanced multiscale-porous structure with a solid framework is realized by adopting polyester resin as an additive to overcome the intrinsic limitations of the AEM material. The scalable MP-AEM-embedded electrokinetic concentrator is devised based on the peculiar properties of the MP-AEM that for allow both ion and fluid transport. With the MP-AEM, the concentrator is fabricated in a highly streamlined manner consisting only of a simple insertion and assembly. The concentration performance of the MP-AEM-embedded electrokinetic concentrator is demonstrated with a positively charged fluorescent dye and a fluorescein-labeled protein, and the results show enrichment factors of 250 and 500, respectively. The MP-AEM makes cationic electrokinetic concentration more accessible and scalable, thereby enabling further progress in a wide range of fields.     

弱激光辐照油松种子生物效应与生物细胞膜的渗透性

从植物生理学观点出发,用物理学方法讨论了He－Ne激光对生物细胞膜的渗透性影响。结果表明用He－Ne激光场辐照油松种子,有利于其细胞膜渗透能力的提高,并可产生有益的生物效应。     

膜式水冷壁多焊机群控系统

基于DSP的多焊接电源群控系统被应用于膜式水冷壁焊机中.该系统引入优先级群控策略,多台焊接电源在外部参数发生波动时,按不同优先级的群控策略进行有序调整,减小了调整时间和调整误差.同时,根据焊接区域和焊接过程中管屏温度场分布规律,引入焊接参数实时调整策略,实现多台焊接电源在起弧段、稳弧段和收弧段等不同焊接过程的参数动态调整.结果表明,使用该系统控制焊机中的多台焊接电源,膜式水冷壁管屏焊接变形得到有效控制,焊接质量有较明显的提高.     

EFFECT OF INCORPORATING ADDITIONAL OLEIC ACID INTO THE PLASMA MEMBRANE OF BAKER'S YEAST ON THE PERMEATION OF PYRUVIC ACID

Addition of Tween 80 to the growth medium of baker's yeast (Saccharomyces cerevisiae) under anaerobic conditions resulted in an increased content of 9-cis-octadecenoic acid (oleic acid) in a membrane preparation consisting mainly of plasma membrane. There was no significant effect on the pyruvate decarboxylation capacity of disintegrated cells, but that of intact cells was significantly enhanced, presumably because of an oleate-induced increase in the permeability of the plasma membrane to pyruvate.     

Decomposition and replacement: Spatial knowledge distillation for monocular depth estimation

Knowledge distillation has become a key technique for making smart and light-weight networks through model compression and transfer learning. Unlike previous methods that applied knowledge distillation to the classification task, we propose to exploit the decomposition-and-replacement based distillation scheme for depth estimation from a single RGB color image. To do this, Laplacian pyramid-based knowledge distillation is firstly presented in this paper. The key idea of the proposed method is to transfer the rich knowledge of the scene depth, which is well encoded through the teacher network, to the student network in a structured way by decomposing it into the global context and local details. This is fairly desirable for the student network to restore the depth layout more accurately with limited resources. Moreover, we also propose a new guidance concept for knowledge distillation, so-called ReplaceBlock, which replaces blocks randomly selected in the decoded feature of the student network with those of the teacher network. Our ReplaceBlock gives a smoothing effect in learning the feature distribution of the teacher network by considering the spatial contiguity in the feature space. This process is also helpful to clearly restore the depth layout without the significant computational cost. Based on various experimental results on benchmark datasets, the effectiveness of our distillation scheme for monocular depth estimation is demonstrated in details. The code and model are publicly available at : https://github.com/tjqansthd/Lap_Rep_KD_Depth.