Materials Literature
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New wedge-shaped thermotropic liquid crystalline materials containing a guanidinium moiety at the apex organize into various supramolecular structures such as hexagonal columnar, rectangular columnar and Pm3n cubic mesophases depending on anions illustrating guest-directed self-organization in mesophases.
Branched poly(ethylene imine) (PEI) with primary, secondary and tertiary amine groups in a ratio of 1:2:1 was specifically functionalized at the primary amine groups with quaternary ammonium groups and C12 alkyl chains. This reaction was performed by treatment of PEI with functional cyclic carbonates, i.e. trimethyl-(…
Properties of the electrochemical capacitors composed of activated carbon fiber cloth (ACFC) electrodes and a mixed aqueous solution of and have been investigated. The specific capacitance of the capacitors increased with increasing the concentration of in the mixed solution. The maximum specific capacitance of (capac…
The fat body plays key roles in metabolism and sustenance of growth throughout the life of a silkworm, and thus represents a model tissue for studying development and metamorphosis. Analysis of 18,480 ESTs derived from larval and pupal fat body cDNA libraries allowed characterization of gene expression patterns in the…
Steel plate reinforced concrete (SC) structures composed of concrete and steel plates with headed studs are considered to be more effective than RC structures against aircraft impact.This is due to the effects of the steel plates, especially the rear-face steel plates.Thus, their application to outer walls and roofs o…
Electronic polarisabilities of rare earth metal ions are obtained front refractivity data (densities and refractive indices) for their crystalline trifluorides in order to make viable an analysis of refractivity data for silicate, aluminosilicate and phosphate glasses containing rare earth oxides. These data provide f…
Under solvothermal conditions the unprecedented nonanuclear Fe(III) aggregate [Fe9(mu3-O)4(mu-OH)4(hpdta)4]5- is formed through the formal encapsulation of [Fe(H2O)6]3+ by four [Fe2(hpdta)(H2O)2]+ units: the aggregates have ground state spins of S= 13/2 while the observed hysteresis below 1.8 K results from inter-clus…
Organic semiconductors containing metal binding sites within their molecular backbones are of a general interest in organic materials chemistry. In this paper, we describe a straightforward synthetic procedure, which gives access to a series of 2-(oligothienyl)-[1,10]phenanthrolines (nT-phen), 2,9-bis(oligothienyl)-[1…
Nanocrystalline TiO 2 /Brij and TiO 2 /Pluronic films were prepared with a view to their application in electrochromic and Grätzel cells and examination of their photocatalytic effect. The films were prepared from titanium (IV) isopropoxide with the addition of Brij 56 or Pluronic F127. Films were deposited by dip‐coa…
Abstract This paper is a review of charge exchange processes in rare earth doped insulating materials. After a description of experimental approaches for the location of impurity ions in the host gap, charge transfer and photoionization phenomena are presented. Experimental data are discussed and interpreted using sim…
The elastic stiffness coefficients of single crystal AlLi with cubic NaTl (B32) structure were calculated at 0 K from the first principles. The obtained elastic stiffness coefficients, in units of GPa, were c11=66.9, c12=38.2 and c44=51.7. Then the bulk modulus, Young’s modulus, shear modulus and Poison’s ratio were e…
In order to confirm and demonstrate Oxide Dispersion Strengthened (ODS) cladding fuel pin survival to high burn-up condition, an irradiation test in BOR-60 was conducted within the framework of JNC-Russian RIAR collaborative work. Two types of 9Cr martensitic and 12Cr ferritic ODS steel claddings were manufactured in…
High cycle fatigue properties of high strength steel were investigated. In the Fuel Cell(FC) system, various metals are used in hydrogen environment under cyclic loading. In this study, hydrogen was artificially charged into specimen of a Cr-Mo high strength steel, and the fatigue properties were compared with those o…
Recent optical measurements on single‐walled carbon nanotubes (SWCNT) showed highly anomalous behaviors indicating strong many‐electron effects. To understand these data, we performed ab initio calculation of electron‐hole interaction (excitonic) effects on the optical spectra of several SWCNTs. We employed a many‐ele…
Cardiovascular disease remains the number one cause of death in the United States. Most current surgical procedures to alleviate this disease rely on the availability of suitable small diameter vascular grafts, which are constrained by several limitations. Tissue engineering brings new hope to this field, but still fa…
On account of the search for the optimal composition and structure-phase state of Zr alloys much attention is paid to upgrade the E110 (Zr-1 %Nb) and E635 (Zr-1 %Nb-0.35 %Fe-1.2 %Sn) alloys that have proved well in terms of irradiation-induced creep and growth, high strength characteristics, and corrosion. The differe…
The corrosion and hydriding behavior of M5 and low tin Zircaloy-4 in PWR have been compared at high burn-ups (>70 GWd/t). Whereas low tin Zircaloy-4 reached about 90 µm in oxide thickness and is subjected to significant precipitation of hydride rims at the metal/oxide interface, the oxide layer on M5 remains be…
A novel catalyst for the Fenton reaction was prepared by immobilizing Fe(III) onto collagen fiber and its high activity as a catalyst for degradation of dyes under irradiation of UVC was proved.
In the presence of ethanol, insulin forms amyloid morphologically distinct from the ambient specimen. Due to stability of fibrils and the autocatalytic character of the process, the two amyloid templates, when seeded, replicate the initial morphologies (and inter-beta-strand hydrogen bonding patterns) regardless of th…
One of the advantages of ultracapacitors is its high power capability, which is applicable for high rate of charging and discharging operation like motor starting and regenerative braking of an electric vehicle. This paper presents a new charging method for ultracapacitors. Comparing with batteries, ultracapacitor can…