徐州红色鲢鱼的初步研究

对红色鲢鱼和白色鲢鱼进行比较研究,结果表明,除体色差别外,两者在体形、咽骨咽齿、消化管相对长度、鳍式和鳞式等方面均无显著差异。可以认为红鲢是白鲢的红色变异体,并对色变的原因做了些推测。     

Bright Red Organic Electroluminescent Devices Based on a Soluble Rare Earth Complex Eu(TTA)_3 Phen

ＩｎｔｒｏｄｕｃｔｉｏｎＯｒｇａｎｉｃｅｌｅｃｔｒｏｌｕｍｉｎｅｓｃｅｎｔ（ＥＬ）ｄｅｖｉｃｅｓｈａｖｅｂｅｃｏｍｅｏｎｅｏｆｔｈｅｍｏｓｔｉｍｐｏｒｔａｎｔｓｕｂ－ｊｅｃｔｓｂｅｃａｕｓｅｏｆｔｈｅｉｒｐｏｔｅｎｔｉａｌａｐｐｌｉｃａｔｉｏｎａｓｌ...     

论弘扬"红军精神" --兼论发展先进文化

“红军精神”是川陕苏区历史留给我们的宝贵精神财富,是重要的苏区文化现象和自己时代精神的精华,是中国先进文化重要的生成因素,今天仍然是推动实践发展的强大精神动力,弘扬“红军精神”要与时俱进,弘扬“红军精神”就是发展先进文化,打造新世纪老区发展的精神文化竞争力。     

从月这意象解读《红楼梦》

本文以月之原型意象及衍生意象对《红楼梦》从内容上进行解构,认为《红楼梦》的主旨是为全人类的母亲唱一曲赞歌,为封建末世的不幸女性唱一曲颂歌和悲歌,表现了作者强烈的女性崇拜意识。有关小说内容的其他观点,都应在此之下,这是作者最主要的创作意图。又从月之运行规律对《红楼梦》的结构和情报进行了解构,认为小说仅写了月亮一月运行的四分之一周期,是用月亮的小循环推出社会和家族兴亡的大循环的,所以小说到八十回就是完整的,不存在所谓“遗稿”的“迷失”问题,高鹗续书恰恰是符合曹雪芹的愿意的。月之意象是解开《红楼梦》的一把钥匙,一个关键。     

Adsorption and catalytic combustion of ARB on CuO-Fe<Subscript>2</Subscript>O<Subscript>3</Subscript>

CuO-Fe2O3 composite material with strong magnetism and a large surface area is prepared by the co-precipitate method. Its adsorption properties towards Acid Red B (ARB) and the regeneration by catalytic combastion of organic compounds have been studied. The results show that the prepared CuO-Fe2O3 composite is an excellent adsorbent for ARB adsorption at acid condition. The presence of Cl^- has no effect on ARB adsorption. But the SO4^2- can inhibit ARB adsorption. After being recovered by the magnetic separation method, the adsorbent can be regenerated by catalytic oxidation of absorbate at 300℃ in air atmosphere. The combustion reactions of ARB in the presence or absence of CuO-Fe2O3 are studied by in situ diffuse refieclion FTIR. The results indicate that, in the presence of CuO-Fe2O3, the degradation temperature is significantly lowered by the catalysis of CuO-Fe2O3, and ARB can be oxidized completely without volatile organic compound by-product; in comparison, in the absence of CuO-Fe2O3, the temperature needed for oxidation of ARB is higher and the reaction is incomplete with some N-containing harmful compounds produced. The reusability of CuO-Fe2O3 is also studied in successive seven adsorption-regeneration cycles.     

Fluram labeling of high density NH2 surfaces

Some surface bonded and fluram labeled primary amines show a new red-shifted emission in their fluorescence spectrum. We compared the fluorescence of fluram bonded to various amine functionalized surfaces including tetraethylene pentamine (TEPA), 1,2-ethylene diamine (EDA), 3-aminopropyltriethoxy silane (APTES) and trimetylol-propanetris-(beta-aziridino)-propionate (ATA). All reactions were also monitored using XPS. It was found that the new spectral features seem to be related to the local density of amino groups on the surface. In order to verify this hypothesis we synthesized a surface bonded dendrimer with a step-wise increasing NH₂ density. Using molecules with different lengths as branches in the dendrimer, the amine density can be varied. Only in the case of the highest density, the new fluorescence emission was detected. Consequently, the fluorescence of fluram coupled to amines at a surface can be used to quantify the concentration of these amines and the appearance of the red-shifted emission indicates a high local density of the amino groups.     

Optical investigation of the red band emission of CdS nanoparticles

Cadmium sulfide (CdS) nanoparticles, with different Cd/S molar ratios, were chemically produced and characterized in this study. High quality CdS nanoparticles were grown in the hexagonal phase, as indicated by X-ray diffraction data and Raman spectroscopy. Photoluminescence was used to investigate the surface effects caused by submitting the nanoparticle-based samples at different laser treatments and vacuum pressure.     

Hydrothermal synthesis of Er-doped yttria nanorods with enhanced red emission via upconversion

(Y_0.95Er_0.05)₂O₃ single-crystalline nanorods with intense red emission via up-conversion are synthesized by a hydrothermal method under modest reaction conditions. Green and red emissions are observed for both as-synthesized sample and post-treated sample after excitation at 488 nm and with upconversion pumping (810 nm). The experimental results indicate that the stokes and up-conversion luminescence of the post-treated (500 °C for 2 h) Y₂O₃:Er nanorods is more efficient than those of as-prepared materials. The increase of the Stokes luminescence may result from the improved crystallization, smooth surface and uniform diameter distribution. The enhanced red emission via upconversion is due to removal of part of surface contaminants, such as CO₃²⁻ and OH⁻. It is believed that a new mechanism is responsible for populating the ⁴S_3/2 and ⁴F_9/2 levels.     

双极性脉冲高压介质阻挡放电降解苋菜红

印染废水具有水量大、有机污染物质量浓度高等特点.利用双极性高压脉冲电源引发的介质阻挡放电产生的非平衡等离子体降解偶氮染料苋菜红(AR27),研究了影响色度去除的因素,如初始质量浓度、电导率、放电频率等,得到了较好的处理效果.结果表明:在初始质量浓度50 mg/L、电导率2.5×103μS/m、曝气量0.6 m3/h、频率50 Hz、电压18 kV时,放电处理90 min,脱色率可达到91%.     

Living fluids

One of the major emerging fields of research of the beginning of this century concerns living fluids. By “living fluids”, we mean two major categories of complex fluids: (i) fluids which are essential to life, like blood, and (ii) active fluids made of particles that are able to propel themselves in the suspending fluid by converting a form of their energy into mechanical motion. Studies on active fluids have known a considerable interest since the last decade. Blood might be viewed as an old topic, but the progresses in experimental techniques, analytical concepts and numerics, have contributed nowadays to a dramatic renewal of the interest in this field, with a great potential towards understanding physical and mechanical factors in cardiovascular diseases. These fields have considerably strengthened interdisciplinary research. The series of reviews of this dossier focus on the tremendous recent progress achieved in research on living fluids both from the experimental and theoretical points of views. These reviews present also the major open issues, making of this dossier a unique guide for future research in these fields. This project grew up thanks to the international summer school that we organized on the topic “living fluids” at the IES (Institut dʼétudes scientifiques) of Cargèse (Corsica) in 2012.