Materials Literature
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The rational design of welded and brazing nodes with soft interlayers is discussed. The research aim is to determine the regularities of influence of the relative thickness and the degree of elongation of soft interlayers on the formation of the stress-strain state of the welded and brazing joints in the elastic defor…
INTRODUCTIONIn recent years, the rapid development gets implementing principles of quality management in the pharmaceutical industry. It should be noted that instead of the mechanical control of the quality associated with the chemical characteristics of pharmaceutical substances and drugs innovative ways to ensure th…
This paper studies the ways to improve the resistance of the metallurgical equipment details, produced by casting. One of such method provided is a method of local doping. The effectiveness of the local doping by powder fillers is considered. It is found that the local doping with the fillers in the form of ferro-vana…
For decades it has been a well-known fact that among the few ferroelectric compounds in the perovskite family namely BaTiO3, KNbO3, PbTiO3 Na1/2Bi1/2TiO3 the dielectric and piezoelectric properties of BaTiO3 is considerably higher than the others in polycrystalline form at room temperature. Further, similar to ferroel…
Computational micromechanics analysis of carbon nanotube-epoxy nanocomposites, containing aligned nanotubes, is performed using the mesh independent intrinsic extended finite element method (IXFEM). The IXFEM employs a localized intrinsic enrichment strategy to treat arbitrary discontinuities defined through the level…
Двухкомпонентная интегративная система клонирования гетерологичных генов в клетках бактерий Bacillus subtilis состоит из двух компонентов. Первым компонентом системы является вектор интеграции pW2, который встраивается в хромосому бактерий B. subtilis в области биотинового оперона с образованием рекомбинантного штамма…
This incorporates fixes for two bugs discovered during the September 5, 2014 sprint. It was deployed to www.betydb.org on September 5, 2014. Changes Pertinent to PEcAn Users Administrators need to do database migrations! See "Database Changes" below. Summary of Changes Database Changes Administrators need to do databa…
In the scope of this thesis functional polymeric nanoparticles were synthesized. The polymer system was limited to the use of poly (2-oxazoline)s as they have proven to be non-toxic and biocompatible and are suitable for the use as polymer therapeutics. In addition, they offer a special advantage over the most frequen…
Electron Paramagnetic Resonance (EPR) and Electron Nuclear Double Resonance (ENDOR) spectroscopies are extremely powerful and versatile methods for the characterization of paramagnetic systems in biology, chemistry and physics. For iron centers in the radical SAM enzymes however, Mössbauer spectroscopy has proven to b…
Arrays of anisotropic particles are sought after for applications in optics, electronics, and energy. Structures assembled from multiple micro‐ or nanoparticles could incorporate the distinct properties of each component to achieve functions not possible from single‐population assemblies. In mixed‐particle populations…
The reaction of 2-(1,2,3,4-tetra-hydro-napthalen-1-yl-idene)hydrazinecarbo-thio-amide (TTSC) with pyrazine-2,3,5,6-tetra-carbo-nitrile (tetra-cyano-pyrazine, TCNP) yields the title 2:1 charge-transfer adduct, 2C11H12N3S·C6N8. The complete TCNP mol-ecule is generated by a crystallographic inversion centre and the non-a…
This chapter contains sections titled: Introduction and Product Status Ceramic Materials IN DFC Cell Active Components (Electrode and Elecrtrolyte Matrix) Cell Hardware Protective Coating Ceramic Materials in Stack Module and BOP Conclusion Acknowledgement
Wydawnictwo SIGMA-NOT wydaje czasopisma fachowe informujące swoich czytelników o najnowszych osiągnięciach naukowych i nowoczesnych rozwiązaniach technicznych w Polsce i na świecie, popularyzuje problemy techniczne oraz poszerza wiedzę i kulturę techniczną.
A circular polarized (CP) infrared (IR) leaky wave surface design is presented. The metasurface consists of an array of rectangular patches connected by microstrip and operating over the long-wave infrared (LWIR) spectrum with directional wave emission and absorption. The surface is composed of periodically aligned ar…
Wydawnictwo SIGMA-NOT wydaje czasopisma fachowe informujące swoich czytelników o najnowszych osiągnięciach naukowych i nowoczesnych rozwiązaniach technicznych w Polsce i na świecie, popularyzuje problemy techniczne oraz poszerza wiedzę i kulturę techniczną.
It has been established that the Raman scattering (RS) of chalcogenide glass–like semiconductors (CGS) materials As-Se-S and As-Se-Te at frequencies below 100 cm-1 consists of two parts: first - which the intensity with increasing frequency up to 30 ÷ 40 cm-1 decreases (quasi-elastic scattering); second - which have b…
The Floquet theory and the transfer-matrix approach were used to investigate the excitation of surfaceplasmon-polariton (SPP) waves and waveguide modes in a structure comprising a one-dimensional photonic crystal (1D PC) of finite thickness on top of a planar thick metallic layer. The solutions of the relevant dispers…
We studied experimentally the granular structures prepared on the base of ZnO thin films. The influence of acceptor or donor complex, caused by oxygen vacancy and interstitial zinc atom, and impurities (Li or Ga) on the crystallite structure conductivity has been investigated. The effect of granule size and crystallit…
A slot metasurface (metascreen) designed to have resonance that couples with the 1733 cm-1 absorption peak of the C=O molecular bond of PMMA (polymethyl methacrylate) is presented. The metasurface is made of a gold layer perforated with periodically-placed slots and stood off above a reflective ground plane with silic…
By using Lanlian FCC gasoline as a feedstock and LBO-A as a catalyst, the effects of different medium gases on the aromatization product yield, which includes hydrogen or methane and ethane or ethylene or dry gas with steam, were researched in a confined fluidized bed reactor. The experimental result showed that addin…