Materials Literature
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The three-way catalysts were prepared by impregnating BaO doped CeO2-ZrO2 solid solutions with H2PdCl6.The results show that Pd catalyst prepared by the support with 10wt% BaO has the best activity and the lowest light-off temperature both before and after aging at 1 000 ℃ for 5 h.The XPS results confirm that a doping…
A coupled heat transfer and reaction kinetics model was established to analysis the impact of the process of heat transfer and chemical reaction on magnesium production rate and transition rate in magnesium production retorts.This model was solved numerically in the process of magnesium production to obtain the spatia…
The environmentally friendliness and biodegradability of fluorinated surfactants are increasingly important and the use of long-chain(≥C8) perfluorinated surfactants will be evidently forbidden in future.In this work,a cationic fluorinated surfactant,N-[3-(dimethylamino)propyl] butanesulfonamide monohydrochloride(C4F9…
The corrosion behavior of nickel, Inconel 600 and Inconel 690 was studied in different concentrations of HCl solution and its inhibition by natural rosemary oil using galvanostatic polarization techniques. It was found that, HCl accelerate the corrosion of nickel and its alloys. The corrosion rate decreases in the fol…
A comprehensive model combining electromagnetic theory of light and quantitative science of color perception was developed and experimentally validated to characterize the diameter of a fluid electrospinning jet from the interference colors shown on the jet. One light source and one camera provide real-time micron sca…
To validate the novel concept of laminating a metal reinforcement to a glass beam using a SentryGlas (SG) interlayer, a series of bending tests has been performed at 23, -20 and 60°C on 1.5 m SG-laminated metal-reinforced glass beams. The beams consisted of three glass layers with a stainless steel box section laminat…
Today the automotive industry is faced with the demand to build light fuel-efficient vehicles while optimizing its crashworthiness and stiffness. A wide variety of new metallic and polymeric materials have been introduced to account for these increased requirements. Numerical analysis can significantly support this pr…
Este trabalho tem como objetivo desenvolver caracterizar e comparar paineis aglomerados (compositos de matrizes polimericas reforcado com fibra vegetal) a base bagaco de cana-de-acucar com ureia formaldeido e melamina formaldeido. Para tal estudo foram moldados paineis utilizando-se bagaco de cana-de-acucar provenient…
The propagation of TM- (transverse-magnetic) guided waves in a lossless and nonmagnetic three-layer structure, consisting of a fllm, characterized by a local Kerr-like ten- sorial nonlinearity, situated between two semi-inflnite linear and isotropic media is considered. Maxwell's equations are reduced to an exact difi…
A review of the family of the Cosserat-type nonlinear shell theories is presented. Starting with a general directed deformable surface model withpdirectors, we consider different elastic shell models using the direct approach. For derivation of the governing equations, we use the principle of virtual work and the prin…
Objective. Wood material is widely used for building. Large amount of co-products are generated in sawmill when a log is converted to lumber. Therefore LCI of lumber was implemented based on 3 allocation procedures (allocation to only lumber, volume based allocation and price based allocation) to know the effect of al…
Based on the prior work by authors, radiative properties of modified complex gratings with nanoscale features are studied. The purpose of this work is to demonstrate, even preliminary, the possibility of using complex gratings and nanoscale surface features to modify far field radiative properties. A finite-difference…
A safety assessment code, DecDose, for decommissioning of nuclear facilities has been developed, based on the experiences of the decommissioning project of Japan Power Demonstration Reactor (JPDR) at Japan Atomic Energy Research Institute (now Japan Atomic Energy Agency). DecDose evaluates the annual exposure dose of…
Noi structuri derivate de la copolimeri de metil metacrilat-anhidrida maleica si clorometilstiren-anhidrida maleica au fost preparate prin reacţii polimer analoage cu diferite aniline. Acesti copolimeri cât si structurile lor derivate au fost caracterizate prin spectroscopie FT-IR si analiza termogravimetrica DSC-TGA-…
В. А. Юрко Восстановление операторов Штурма-Лиувилля по спектрам на графе с цикломИсследуется обратная задача спектрального анализа для дифференциальных операторов Штурма-Лиувилля на графе с циклом и с обобщенными условиями склейки во внутренней вершине.Доказаны теоремы единственности восстановления операторов по сист…
本稿では, 多重バリアシステムを有する放射性廃棄物処分施設の安全性能評価手法について提案する. 本稿で提案する手法は, 我が国において既存の放射性廃棄物処分施設に対しておこなわれた安全評価で用いられている移行率モデルの概念に基づいている. 提案する安全評価手法の有利な点は, 複雑な数値シミュレーションを多用することなく, 廃棄体からの溶出率を考慮した人工バリアシステム (EBS) からの放出フラックスを算定でき, さらに, 人工バリアが有する遅延性能, 低透水性能, 及び低拡散性能の3つの性能指標からなる移行率を提案・採用している点である. また, 本稿で提案する安全性能評価手法を用いて, 人工バリアからの放射性核種の放出フラック…
Water management of the catalyst layer in a polymer electrolyte membrane fuel cell was improved by focusing on the three-phase boundary. To fabricate the cathode catalyst layer, carbon-support with catalyst and fluorine resin were mixed and heat-treated at the melting temperature of fluorine resin. The transmission el…
We introduce and test a method for improving the accuracy of phase retrieval based on Transport of Intensity (TIE), by using intensity measurements at multiple planes to estimate and remove artifacts due to higher order axial derivatives.
We propose a new versatile method for fabricating quasi-phase-matched devices: room-temperature plate-bonding technique. We have succeeded in bonding 12 plates of GaAs for 1μm-pumped OPO and 5 plates of GaP for THz generation.
塗料, 接着・粘着剤などの一般工業分野において, 高分子微粒子は, フィルム形態で広範に利用されている。このようなフィルム形態での利用に加え, 粒子サイズ, 粒子径分布, 粒子表面化学の制御に関する研究の進歩の恩恵を受け, 近年, 医療分野, 情報通信分野, 化粧品分野などで微粒子形態のままでの利用に関する研究が進んでいる。さらに最近, 油水界面に対して適度な濡れ性を有する高分子微粒子は界面に吸着するためエマルションの安定化が可能であることが明らかとなり, 高分子微粒子安定化エマルション (pickeringエマルション) に関する研究が注目を集めている。本総説では, (1) 油水界面に吸着した粒子, (2) 高分子微粒子で安定化…