Achnanthidium druartii sp. nov. (Achnanthales, Bacillariophyta), a new species invading European rivers
International audience
Materials Literature
文献浏览
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
SENSITIVITY OF CHIROWAVEGUIDES TO CIRCULAR BIREFRINGENCE BY FIRST ORDER PERTURBATION THEORY
Abstract—Planar waveguides with an isotropic chiral core, called chirowaveguides, support the propagation of elliptically polarized modes, making them natural candidates for chiral sensing. We investigate the potential of chirowaveguides as optical sensors responding to changes in the circular birefringence of a mediu…
UNEQUALLY SPACED AND EXCITED RESONANT SLOTTED-WAVEGUIDE ANTENNA ARRAY BASED ON AN IMPROVED RESONANT-SLOT COUPLED CAVITY CHAIN COMPOSITE RIGHT/LEFT-HANDED WAVEGUIDE
This paper presents a new unequally spaced and excited resonant slotted-waveguide antenna array.It is realized by employing an improved resonant-slot coupled cavity chain composite right/lefthanded (CRLH) waveguide.As the CRLH waveguide works at the infinite wavelength frequency, all the slot elements along the wavegu…
Evaluation of Some Synthetic Oligolignols as Adhesives: A Molecular Docking Study
We have investigated alternative adhesives based on some oligomers that have structural units similar to lignins. The favorable interactions for a set of synthetic oligolignols were determined through a computational docking scheme, considering their conformational changes to adapt themselves on the surface of a three…
Synthesis, structure and solvatochromic properties of 5-(3- and 4-substituted phenylazo)-4,6-diphenyl-3-cyano-2-pyridones
A series of some new pyridone arylazo dyes was synthesized from the corresponding diazonium salts and 4,6-diphenyl-3-cyano-2-pyridone using the classical reaction for the synthesis of the azo compounds. The structures of these dyes were confirmed by UV-vis, FTIR and 1H-NMR spectroscopic techniques. The solvatochromism…
The Study for Improving the Dielectric Strength and Lowering the Low-molecular-weight Siloxane of PDMS based Materials by Organic-inorganic Hybrid Method
We have investigated the thermal endurance and electrical insulating properties and mechanical properties of PDMS-based hybrid materials made from ethoxy-terminated PDMS and various metal alkoxides for application as electrical insulating encapsulants. The materials exhibited good thermal stability and good electrical…
Wettability of Porous Materials III: Is the Wilhelmy Method Useful for Fabrics Analysis?
Woven and nonwoven fabrics and the corresponding fibers have been analyzed using a Wilhelmy microbalance. A self-developed analysis software (written using Labview flow-data language) has been used to extract the advancing and receding angles and also other informations commonly neglected by the standard data analysis…
Chain length dependence of the helix orientation in Langmuir–Blodgett monolayers of α-helical diblock copolypeptides
The effect of chain length on the helix orientation of α-helical diblock copolypeptides in Langmuir and Langmuir–Blodgett monolayers is reported for the first time. Amphiphilic diblock copolypeptides (PLGA-b-PMLGSLGs) of poly(α-L-glutamic acid) (PLGA) and poly(γ-methyl-L-glutamate-ran-γ-stearyl-L-glutamate) with 30 mo…
Relationship between the cone crack and fracture mode in ceramics under high-velocity-projectile impact
Ceramics will be widely used for enhancing the efficiency of power generating systems, particularly gas turbines. However, ceramics used in these systems suffer damage owing to impact by foreign objects. In this study, various ceramic plates are impacted by a spherical projectile with an impact velocity of 320 m/s. Th…
Analysis of the Welding Deformation of Resistance Spot Welding for Sheet Metal with Unequal Thickness
Coupled electrical-thermal and thermo-elastic-plastic analysis were performed to analyze the transient thermal and mechanical behaviors of resistance spot welding (RSW) process of the mild steel sheet metals with unequal thickness. The thermal histories of the whole process and temperature distributions in the sheet m…
Role of holes and electrons during erase of TANOS memories: Evidences for dipole formation and its impact on reliability
The systematic investigation of the role played by electrons and holes during the erase operation of TANOS memories by means of charge separation experiments and physics-based simulations is reported for the first time. We determined a dominance of electrons back-tunneling in the first part of the transient, and domin…
Gold nanoparticle self-assembly promoted by a non-covalent, charge-complemented coiled-coil peptide
Non-covalent interactions between cationic gold nanoparticles and an anionic coiled-coil peptide were harnessed for coiled-coil mediated self-assembly of gold nanoparticles (GNPs).
Parameterization and validation of an accurate force-field for the simulation of alkylamine functionalized silicon (111) surfaces
The stretching, bending, and torsional force-field parameters for modelling Si (111) surfaces functionalized with alkylamines have been derived from energies, optimized geometries and harmonic frequencies obtained by accurate quantum mechanical calculations. Addition of inter-chain non-bonded parameters from a literat…
Investigation of a Metal–Insulator–Semiconductor Pt/Mixed Al[sub 2]O[sub 3] and Ga[sub 2]O[sub 3] Insulator/AlGaN Hydrogen Sensor
Pt/mixed and reactive insulator/AlGaN metal−insulator−semiconductor (MIS)-type hydrogen sensors were fabricated using a photoelectrochemical oxidation method to directly oxidize AlGaN employed for increasing the sensor response to hydrogen gas. When hydrogen gas was sensed, the MIS hydrogen sensors exhibited a larger…
Epitaxial Growth of Co Thin Films on MgO Single-Crystal Substrates
Co epitaxial thin films were prepared on MgO substrates of (100), (110), and (111) planes by molecular beam epitaxy. The growth process, the film structure, and the magnetic properties were investigated. The nucleation of Co crystal on MgO substrate varies depending on the substrate orientation and the substrate tempe…
Sense toxins/sewage gases by chemically and biologically functionalized single-walled carbon nanotube sensor based microwave resonator
In this work the complex permittivity and microwave absorption of toxins/sewage gases and functionalized single-walled carbon nanotube sensors in a perturbed microwave resonant cavity are studied with the aid of a kinetic model. The results show that the real permittivity decreases and the imaginary permittivity incre…
On the Magnetic and Mössbauer Spectroscopic Characterization of EuPd2Sb2
The CaBe2Ge2-type antimonide EuPd2Sb2 (P4/nmm, a = 462.43(7), c = 1056.1(2) pm) was synthesized by induction melting of the elements in a sealed tantalum tube. Temperature-dependent magnetic susceptibility measurements have revealed Curie-Weiss behavior with an experimental magnetic moment of 7.93(1) μB/Eu atom, indic…
Numerical Simulation of Time-dependent Spring-back Behavior for Aluminum Alloy 6022-T4 Sheet
In order to analyze the time‐dependent spring‐back behavior of the aluminum alloy 6022‐T4 sheet, the viscoelastic/plastic constitutive law was applied by utilizing a linear viscoelastic/plastic model previously developed. As for the plastic deformation, the combined isotropic‐kinematic hardening law was used to repres…
A chiral manganese–potassium heterometallic MOF with an unusual (3,7)-connected network
A Mn–K heterometallic MOF, [KMn(I3)(L)2(H2O)]n (HL = D-saccharic acid 1,4-lactone) (1), has been synthesized from a benzene solution. X-Ray single crystal structural analysis shows that MOF 1 is the first MOF based on the L− ligand and belongs to the chiral space group P1. MOF 1 features an unusual (3,7)-connected tcj…
The conformation and orientational order of a 1,2-disubstituted ethane nematogenic molecule (I22) in liquid crystalline and isotropic phases studied by NMR spectroscopy
The structure, conformation and orientational order of the mesogen I22 have been studied by proton, carbon-13 and deuterium 1D and 2D-NMR spectroscopies at natural abundance and at various magnetic fields when in the nematic phase, the isotropic phase close to the nematic-isotropic phase transition, and as a solute in…