Materials Literature
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Emerging fields such as nanomedicine and nanotoxicology, demand new information on the effects of nanoparticles on biological membranes and lipid vesicles are suitable as an experimental model for bio-nano interaction studies. This paper describes image processing algorithms which stitch video sequences into mosaics a…
When the μ3-sulfido triiron cluster [SFe3(CO)9]2− was treated with BrCH2C(O)OCH3 in MeCN, the ester-functionalized complex [SFe3(CO)9(CH2C(O)OCH3)]− (1) was obtained. Cluster 1 displays a SFe3 tetrahedral core with one of the Fe atoms bonded to an ester ligand CH2C(O)OCH3. In contrast, when [SFe3(CO)9]2− was treated w…
This paper presents an implementation of a regenerative braking system in an electrically operated two wheeler using supercapacitors (SC), thus partially salvaging the heat energy previously dissipating due to friction. Kinetic energy is converted into useful energy in the developed system which gets converted in to h…
We discuss the identification of untangled graph embeddings for finite planar and non-planar graphs as well as infinite crystallographic nets. Two parallel approaches are discussed: explicit 3-space embeddings and reticulations of 2-manifolds. 2D and 3D energies are proposed that allow ranking of (un)tangled embedding…
A new ion-exchange adsorbent (IEA) derived from Fe(3)O(4)/SiO(2)-GPTMS-DEAE with paramagnetic properties was prepared. Fe(3)O(4) nanoparticles were firstly prepared in water-in-oil microemulsion. The magnetic Fe(3)O(4) particles were modified in situ by hydrolysis and condensation reactions with tetraethoxysilane (TEO…
Shot peening beneficial effects on fatigue life of mechanical components are well known. However, there are some reports in the literature that indicate inappropriate shot peening parameters tend to reduce the fatigue life. It is therefore, the purpose of this study to find a logical quantitative justification for the…
The crystal structure and dynamics of Mg(ND(3))(6)Cl(2) have been investigated by powder neutron diffraction and molecular dynamics. The powder diffraction data can be well described by 4 partly occupied deuterium sites in a square arrangement around the N atoms, which is seemingly inconsistent with the 3-fold symmetr…
This article presents a new technique for the detection of power quality (PQ) events by using statistically matched wavelet. The statistically matched wavelet is designed based on the characteristics of the PQ event using the concept of fractional Brownian motion. The proposed technique is compared with Daubechies wav…
In the last period, as a result of bot, the European projects funding and own funds, the logging companies from Romania have begun to improve their own machinery stock by acquiring last generation equipment - cable yarders, specialized for short and medium distances as a response to the technical, economic, silvicultu…
In this study, effects of mineral admixtures on water permeability and compressive strength of concretes containing silica fume (SF), fly ash (FA) and super pozz (SP) were experimentally investigated. Permeability of concrete was determined through DIN 1048 (Part 5). The research variables included cement type, ordina…
The one dimensional {Co(HBpe)2}(V4O12) inorganic–organic compound, where Bpe is 1,2-di(4-pyridyl)ethene (C12H10N2), has been synthesized using mild hydrothermal conditions under autogenous pressure at 120 °C for three days, obtaining single-crystals suitable for X-ray structure determination. The compound crystallizes…
A ureidocytosine (UCyt) module with a pendant amine linker at N-1 has been prepared for applications in supramolecular quadruple hydrogen bonded array synthesis. Subsequent conjugation to four amine terminated telechelic polymers led to the formation of oligomeric DDAA arrays, as determined by NMR diffusion measuremen…
Covers advancements in spacecraft and tactical and strategic missile systems, including subsystem design and application, mission design and analysis, materials and structures, developments in space sciences, space processing and manufacturing, space operations, and applications of space technologies to other fields.
The novel nano-structured hardmetal with nano-strengthened binder was developed. The microstructure of modern alloy consists of the rounded grains of tungsten carbide and the cobalt-based binder, which is reinforced by nanoscaled particles of the θ phase (Co 2 W 4 C). The microhardness of binder for the novel hardmeta…
The first examples of palladium dihalide and indium trihalide complexes supported by a tetrakis(imino)pyracene (TIP) ligand have been prepared and structurally characterized.
Recently introduced molecular-level chemistry models that predict equilibrium and nonequilibrium reaction rates using only kinetic theory and fundamental molecular properties (i.e., no macroscopic reaction rate information) are extended to include reactions involving charged particles and electronic energy levels. The…
A macroporous silver network was facilely synthesized using eggshell membrane as template and explored for methanol oxidation reaction, showing a significantly enhanced electrocatalytic ability compared with a traditional silver mirror electrode. The scanning electron microscopy observation showed a hierarchically ord…
The interaction of insulin with polymeric coatings, commonly used in devices for insulin storage and administration, is affected by relative humidity (RH). Understanding the effect of RH on adhesion of insulin particles to polymeric surfaces is of particular interest for selecting coating materials and environmental c…
Sm-Co intermetallic compound nanoparticles were obtained by utilizing plasma-induced cathodic discharge electrolysis in molten chloride electrolyte under a 1 atm Ar atmosphere. To form intermetallic nanoparticle, an electrochemical implantation method was adopted. Before conducting electrochemical implantation, we inv…
The adsorption of humic acid (HA) on an Al2O3 surface in the presence of Gd3+ was studied in situ by quartz crystal microbalance with dissipation (QCM-D) and ex situ by ellipsometry and XPS. Adsorption of a HA/Gd3+ complex yielded an adlayer of a mass of 354 ng cm−2, the adlayer is characterized by a relatively high d…