Materials Literature
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The broadband dielectric spectroscopy (BDS) technique (40 to 10(10) Hz) is used here to measure the electronic transport across all observed size scales of a Li(1.1)V(3)O(8)-polymer-gel composite material for lithium batteries. Different electrical relaxations are evidenced, resulting from the polarizations at the dif…
This study compared the cytotoxicity and the release of nitric oxide induced by collagen membranes in human mononuclear cells. Peripheral blood was collected from each patient and the separation of mononuclear cells was performed by Ficoll. Then, 2x10(5) cells were plated in 48-well culture plates under the membranes…
Abstract—The increasing popularity of a so-called transient motor current signature analysis requires the fault diagnostics parameters which could not be exposed to other factors irrelevant to the fault to make a precise assessment of the failure severity level. This challenging task needs a precise modeling of faulty…
We generalize a technique for determination of the shear viscosity of mixtures in planar slabs using non-equilibrium computer simulations by applying an external force parallel to the surface generating Poiseuille flow. The distance-dependent viscosity of the mixture, given as a function of the distance from the surfa…
This paper presents process simulation of moving bed gasifier using low rank, subbituminous Usibelli coal from Alaska. All the processes occurring in a moving bed gasifier, drying, devolatilization, gasification, and combustion, are included in this model. The model, developed in Aspen Plus, is used to predict the eff…
BACKGROUND: Patients with recurrent malignant gliomas have a uniformly poor prognosis. However, further treatment is often warranted at the time of recurrence. Low-activity implanted brachytherapeutic devices, such as iodine-125 seeds, and implantable chemotherapeutic devices such as 1, 3-bis (2-chloroethyl)-nitrosour…
When uranium is used as fuel in nuclear reactors it both undergoes neutron induced fission as well as neutron capture. Through successive neutron capture and beta decay transuranic elements such as neptunium, plutonium, americium and curium are produced in substantial amounts. These radioactive elements are mostly lon…
Abstract Steels with different content of cementite (Armco iron, Ck45 and C80) as well as four different heat treatment conditions of 42CrMoS4 are examined under both uniaxial and four-point bending loading with load reversal regarding the residual stress distribution due to straightening processes. It was found that…
This paper studies the electromigration (EM) failure of interconnect structure and solder joint in a wafer level chip scale package (WL-CSP) based on atomic flux divergence (AFD) method. The impact of atomic density gradient (ADG) on the divergence of the atomic fluxes is investigated. The simulation results show that…
Although therapeutic angiogenesis by angiogenic cytokines is a feasible strategy to improve regional blood flow in ischemic regions, the optimal delivery mode needs to be established. Here we designed a complex of collagen matrix (CM) and basic fibroblast growth factor (bFGF) and evaluated its proangiogenic effect in…
The activity of Titanium (Ti) influences the interface reactions and plays an important role in wettability and connectivity between filler metals and ceramics. Based on thermodynamics, the relations between the activity of Ti and the components concentration in Sn-Ag-Ti alloys are discussed. The interaction parameter…
The WC-Co carbides are widely used to deposit protective coatings on engineering surfaces against abrasion, erosion and other forms of wear existence. The nanostructure coatings offer high strength, a low friction coefficient and chemical and thermal stability. WCo coatings were deposited using EBPVD technique realize…
We cultured human mesenchymal stem cells (hMSCs) on TiO2 nanotubes with diameters of 30–100 nm to assess the size‐effect of TiO2 nanotubes on the behavior and osteogenic functionality of hMSCs. Most studies of the expression of genes encoding alkaline phosphatase (ALP), osteocalcin (OCN), osteopontin (OPN), and integr…
Pyrochemical separation technology using high-temperature molten salts presents a potential interest for an overall separation strategy. Pyrochemical R&D program, launched at CEA, aims at demonstrating the feasibility of a grouped separation of actinides with sufficient decontamination. The process is based on two liq…
Influence of the Memory Effect on X-ray Photoelectron Spectroscopy and Raman Scattering in Positive Electrode of Ni-MH Batteries, Watanabe, Nobuaki, Arakawa, Tomiyuki, Sasaki, Yasushi, Yamashita, Tsugito, Koiwa, Ichiro
Employing a semi-rigid di-1,2,4-triazole ligand leads to the formation of new MOFs [Cu(4)(L)(4)(SO(4))(4)]·4[Cu(H(2)O)(6)(SO(4))] (3) and [Cu(6)(L)(3)(SO(4))(5)(OH)(2)(H(2)O)(6)]·13H(2)O (4). The frameworks can be synthesized independently, but a reaction occurs in water wherein kinetic product 3 is used as a reagent…
In this study effect of adding various process control agents (PCAs) to powder mixtures of Al and TiO 2 which are mechanically activated so as to form TiAl - Al 2 O 3 nano-composite have been investigated. Phase constitutions and morphology of the milled powders were evaluated by XRD and SEM techniques, respectively.…
In this study, chromium zirconium nitride (Cr-Zr-N) thin films have been prepared by reactive dc closed field unbalanced magnetron co-sputtering on Si (100) wafers and glass slides for 60 min without substrate heating and biasing voltage in gas mixture of Ar and N2 with flow rates kept constant at 3.0 sccm and 6.0 scc…
Photocatalytic activity of KTaO3 catalyst to water splitting is much improved by organic dye-modification. In particular, cyanocobalamin (Vitamin B12) is the most effective for improving water splitting activity, and the formation rate of H2 and O2 are achieved values of 1912 and 979 μimol gcat“’h”1, respectively, und…
It is difficult to deposit extremely thin a-Si:H layer in heterojunction with intrinsic thin layer (HIT) solar cell due to thermal damage and tough process control. This study aims to understand oxide passivation mechanism of silicon surface using rapid thermal oxidation (RTO) process by examining surface effective li…