Materials Literature
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The work described in this thesis was shaped by the goal---coming up new approaches to fabricate plasmonic materials with electron beam induced deposition (EBID). One-step, bottom-up and direct-write are typical adjectives that are used to indicate the advantageous properties of this technique. These properties enable…
We experimentally investigate the impact of uncorrelated composite and structural disorder in photonic graphene. We find that in case of structural disorder not only chiral symmetry, but also the vanishing of the density of states at zero energy is preserved. This is in contrast to composite disorder, where chiral sym…
The aim of my thesis was to investigate neutral and adaptive evolution of a lineage of macroalga (Fucus vesiculosus) that entered the Baltic Sea about 6000 years ago, and later gave rise to a new endemic species, F. radicans. To examine whether the two species have adapted to local conditions of the Baltic Sea, or hav…
ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionCorrection to Evaluation of Solution-Processable Carbon-Based Electrodes for All-Carbon Solar CellsMarc P. Ramuz, Michael Vosgueritchian, Peng Wei, Chenggong Wang, Yongli Gao, Yingpeng Wu, Yongsheng Chen, and Zhenan Bao*Cite…
Graphene has drawn wide attention due to its exceptional thermal conductivity but complete understanding of thermal characteristics of polycrystalline graphene is still elusive to date. For the first time, herein, we have systematically studied the effect of temperature on the thermal conductance behavior of polycryst…
In this paper the results of experimental research of microhardness, thickness, phase composition and wear resistance of pure titanium surface layer after laser treatment with different regimes and next nitriding in a glow discharge in hydrogen-free medium were presented.
The software proposed in this paper presents an educational teaching method of the woven fabrics with simple structure. The program is modular designed with increasing difficulty while the complexity of the approached subject increases. The program respects the principles of the educational methology and the informati…
Knitting is the operation of the technological process in which needles transform the yarns into loops that by interlooping become stitches. If the loops are formed horizontally, the fabric is considered weft knitted, while if the loops form successively along the vertical direction, the fabrics are warp knitted. In t…
Abstract Review: 155 refs.
Abstract Review: 194 refs.
In 2015, the United Nations adopted 17 Sustainable Development Goals (SDGs) for the world. These are summarized broadly as ending poverty, ensuring access to food, clean water, energy, global health and education, achieving gender equality, securing decent work for all, building resilient infrastructure, reducing inco…
采用水热合成法制备了MIL-101（Cr）催化剂，考察了反应条件对其在H2O2氧化环己烷反应中催化性能的影响。利用XRD、FT-IR和UV-Vis等手段对MIL-101（Cr）反应前后结构的变化进行了表征。结果表明，MIL-101（Cr）在所选择的反应体系中存在Cr析出现象，其结构在以H2O2为氧化剂的反应体系中不稳定，经反应后形成了无定型物质，但催化活性不仅远高于新鲜MIL-101（Cr），而且还在重复利用中表现出良好的稳定性。采用水热合成法制备了MIL-101（Cr）催化剂，考察了反应条件对其在H2O2氧化环己烷反应中催化性能的影响。利用XRD、FT-IR和UV-Vis等手段对MIL-101（Cr）反应前后结构的变化进行了表征…
Single α-phase and duplex ( α+ β′) phase aluminum bronze (CuAl) coatings were deposited on 1Cr18Ni9Ti stainless steels by atmosphere plasma spray. The fretting wear behaviors of the two types of coatings were investigated in relation to their phase composition. The damage mechanisms of the coatings were identified by…
In the vicinity of the first-order transition temperature, the Ni50Mn35In15Heusler alloy exhibits interesting magnetizing processes. The virgin curve at 280 K lies entirely outside the major loop, and the area of the MH loop formed by the virgin curve and the sequential descending curve is significantly larger than th…
The effect of the mixing ratio of spherical silica on the electrical insulation breakdown strength in an epoxy/silica composite was studied. Spherical silicas with two average particle sizes of $5{\mu}m$ and $20{\mu}m$ were mixed in different mixing ratios, and their total filling content was fixed at 60 wt%. In order…
Abstract Infrarotspektroskopie ist eine aussagekräftige Analysemethode, die auf charakteristischen Absorptionen von infraroter Strahlung bei der Anregung von Molekülschwingungen beruht. Gerade im Bereich zwischen 400 – 4000 cm–1 ergeben sich stark ausgeprägte Absorptionsbanden, die die Identifikation von Molekülen und…
Purpose. The purpose of the paper is an estimation of degree of metal hardness change for the railway wheel with martensite structure during rolling. Methodology. As strength characteristic the Rockwell hardness is used. Wear tests were conducted in the conditions of normal loading with (10%) and without sliding on th…
ABSTRACT Mixed block copolymers have been used as a template in the synthesis of new mesoporous silica particles, prepared from sol–gel method. The prominent effect of the block copolymers have been used to provide a new template that controls the surface area and porosity of the particles. Tetraethyl orthosilicate as…
In this thesis we discuss imaging with aberration-corrected Low Energy Electron\n Microscopy in theory as well as in the experiment.
Based on the characteristic of propylene oxide preparation reaction from propylene with hydrogen peroxide as oxidant,catalytic material HTS was investigated thoroughly,including the optimization of preparation conditions for titanium silicalites used in hydrogen peroxide-propylene oxide(HPPO) process,the modification…