Materials Literature
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。
熱電発電が抱える二つの課題である、低い変換効率と毒性・希少元素の含有を解決するために、国内外の研究機関と共同して、前者についてはナノテクノロジーを、後者は元素代替を用いて解決を試みている。脚光の当たりやすい材料開発のみならず、泥臭いモジュール開発等にも精力的に取り組み、熱電発電の高効率化、低毒性化、低コスト化に道筋をつけた。さらに、熱電発電の市場開拓に積極的に関与するために、これら研究成果をもとにベンチャー企業を設立した。この論文では、基礎研究から起業までの各ターニングポイントで、著者がとった研究戦略について議論する。
摘要：
Activated carbon materials (CM) were prepared from rice husk carbonized in a fluidized bed reactor. Low temperature nitrogen adsorption at 77 K was used for characterizing the EM texture. Variations in the preparation conditions (carbonization followed by activation) allowed the materials to be synthesized with the BE…
Investigating the dynamics beyond the patterns (structure, diversity) of microbial \ncommunities at regional level in different spatial scales has been a developing area \nin ecology and studies on diatoms with such approach receive increasing scientific \ninterest. In this study, phytobenthos samples were collected f…
The paper presents the experimental data observed in the microstructure and phase composition of ultrafine-grained Ti–40 mass % Nb (Ti40Nb) alloy after high-temperature annealings. The ultrafine-grained Ti40Nb alloy is produced by severe plastic deformation (SPD). This method includes multiple abc-pressing and multi-p…
This paper proposes a modeling method of the temperature characteristics of Preisach theory. On the basis of the classical Preisach hysteresis model, the Curie temperature, the critical exponent and the ambient temperature are introduced after which the effect of temperature on the magnetic properties of ferromagnetic…
The thin film of Sb2Se3 was deposited by thermal evaporation method and the film was annealed in N2 flow in a three zone furnace at a temperature of 290oC for 30 min. The structural properties were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and…
The advancement of nanotechnology has enabled the miniaturization of electronic components to the extent of several nanometres, thus leading to heat dissipation issues which often result in device failure. This thesis involves a fundamental study on phonon and electron transport in semiconductor materials commonly use…
The cost optimisation of 1‐GW offshore wind farms is investigated in this study. The feasibility of combining AC collector platforms and an HVDC converter platform to form a combined platform is assessed. The evaluation of different electrical connection topologies is undertaken for a wide range of different electrica…
We provide design and fabrication of robust GMR devices operating in the 3–15 µm spectral range. Optimized reflectors are designed with inverse numerical methods. Preliminary experimental spectra agree qualitatively with theory.
Significant progress has been made over the past years in order to better understanding of the materials used in nanoscience and nanotechnology. In addition, due to the development in additive manufacturing [1] and laser lithography, based on the photon polymerization of a variety of UV-curable photoresist it is now p…
This paper deals with the deformation of precision seamless tubes during the cold drawing process, using Finite Element Methods. The value of strain obtain by stereology measurement of degree grain boundaries deformation are compared with simulation result for each drawing pass. The material chosen was the E235 and E3…
Environmental compatibility of green composites has become an important characteristic as the need to reduce environmental hazards is increasing worldwide. Mechanical development, which replaces the non-sustainably based materials by biomass-based ones would be the assignment forced on researchers and designers of the…
Based on equal channel angular extrusion (ECAE), NiTiFe shape memory alloy (SMA) was subjected to severe plastic deformation in order to obtain the refined microstructures. Finite element method (FEM), electron backscattered diffraction (EBSD) analysis and transmission electron microscopy (TEM) were used to investigat…
Ionische gating is een techniek die een eenvoudige methode biedt voor toegang tot tweedimensionale elektrische transportsystemen door het vormen van een elektrische dubbellaag. Het is mogelijk om de geleidbaarheid van halfgeleiders en zelfs metalen effectief af te stemmen. In dit proefschrift is een nieuw type magneti…
The ability of a macrophage to engulf and break down invading cells and other targets provides a first line of immune defense in nearly all tissues. This defining ability to ‘phagos’ or devour can subsequently activate the entire immune system against foreign and diseased cells, and progress is now being made on a dec…
The uniqueness of iron is not only that it is one of the most common elements, and the production of its derivative (steel) «exceeds the production of other metals by 14 times», not only in its polymorphism, but also in the following: «conversion of BCC α-Fe (К = 8) into a denser FCC γ-modification (K = 12) with heati…
The report analyzes the results of the experimental-theoretical investigation of the response of brittle media (fine-grain concrete, fiber-reinforced concrete, ceramic brick, gabbro-diabase and limestone) to dynamic loading. To determine the properties of the studied materials under dynamic strain rates, the tradition…
Many flexible constitutive equations have been proposed in the last two decades for sheet forming simulations, but their use in forming industry is limited. The main reason is that various mechanical tests are required to determine the multiple parameters needed for such models. To solve this bottleneck, a polycrystal…
An alternative, friendlier methodology for the determination of the average manganese valence () of manganese oxides (mainly pure and doped spinels) is presented. This methodology is based on the facile determination of the concentration of Mn 2+ and Fe 2+ ions by atomic absorption spectrometry (AAS) and molecular abs…