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。
摘要： 针对汽车覆盖件拉延冲压效应所带来的厚度变化，提出一种新的考虑料厚变化的材料利用率计算方法。该方法应用冲压仿真计算获取零件成形后各个区域不同的料厚值，结合仿真模型的单元数量计算出零件网格模型的重量，并通过单元总面积和数模总面积对比修正，使得基于仿真计算的零件重量基本接近实际零件重量。同时以拉延筋外边界线对拉延件外轮廓曲线进行限定，结合一步法和冲压仿真迭代计算获得最小坯料轮廓线。计算出修正的网格模型重量和最小毛坯重量的比值后，即可获得非常接近实际情况的材料利用率。
Using 4-((3,4-dihydroxyphenyl)diazenyl)benzenesulfonic acid and 4,4’-diphenyl-methane diisocyanate(MDI) as raw materials,the hyperbranched azo polyurethane was synthesized by A2+B3 polycondensation,with the reactions between phenolic hydroxy or sulfo group and isocyanate group.Then the peripheral hydroxyls of syntheti…
The goal of this work is to present recent developments on mathematical modeling for microstructure evolution in different steel types, applied to a continuous rolling of seamless tubes. The development of these models depends on careful characterization of the thermomechanical cycle and/on correct selection and adjus…
従来のミサイル療法剤である抗細胞抗体を用いたADC(Antibody―drug conjugate)は、血液性悪性腫瘍や間質が少なく血流の多い乳がんに対しては有効に作用する。しかしながら、脳腫瘍、スキルス胃がん、膵臓がんなどの間質の豊富な難治性がんでは有効性が示されていない。がん細胞を取り囲む厚い間質が腫瘍内部での抗体デリバリーを阻害している。このいわゆる間質バリアを克服するために、間質を標的にしたADCとしてCAST(Cancer stromal targeting)療法を創生した。現在までに、抗コラーゲン4抗体・SN-38複合体と抗フィブリン抗体・SN-38複合体の開発に成功している。CAST療法剤に特徴的な薬効として、がん細…
We theoretically present optically controlled tuned terahertz metamaterials with an approximate tuning range of 22%. A redshift in the resonant frequency from 0.92 THz to 0.71 THz was theoretically achieved. The simulation results revealed that the modulation depth could reach to 97%. At the meanwhile, the short carri…
Рассмотрены недостатки эксплуатации холодильников и варианты снижения потерь электроэнергии за счет применения сверхэкономичного светодиодного источника света, выполненного на основе схемы с гасящим конденсатором. Для улучшения качества работы и продления срока службы холодильников, имеющих внутренний объем холодильно…
We extend to you a warm and sunny Aloha in celebration of the 23 rd American Peptide Symposium and the 6 th International Symposium. The meeting theme, Peptides Across the Pacific, embraced the spirit of the scientific and social program. Peptides Across the Pacific encompassed the important role that peptide science…
Information of a crystal structure is crucial for understanding its physical properties. Our previous powder x-ray structure analyses on proton conductors, high-energy materials, and elements under conditions of high-temperatures, low-temperatures, high-pressures have revealed their new crystal structures, however, pr…
ТЕОРИЯ СИЛЬНОЙ СВЯЗИ В МНОГОЗОННЫХ СВЕРХПРОВОДНИКАХРассматривается микроскопическая теория сильной связи в многозонных сверхпроводниках с произвольным электрон-бозонным взаимодействием.На основе метода уравнений движения для двухвременных функций Грина выводится уравнение Дайсона с массовым оператором в виде многочаст…
Optical radiative parameters for multichannel visible transition emissions have been determined in Sm3+-doped cadmium-aluminum-silicate(CAS) glass under the excitation of a violet light emitting diode(LED).For the derivation,the necessary fluorescence spectra were measured and calibrated in an integrating sphere,which…
Ceramic materials are widely used from everyday life to space technology. Properties of ceramics are widely affected by the type of their raw materials, their shaping and production methods. The use of conventional techniques and materials in the production of traditional ceramics are preferred in terms of continuity…
Growing demands for reduction of energy consumption and environmental impact are rapidly leading to the spread of solid state LED lighting with low power consumption and high reliability. To meet these demands, we are developing high efficiency and high power LED on GaN substrate. High optical output power of 1.23W at…
Surface-deformation induced wavefront error on large-scale diffraction gratings prevents short-pulse laser systems using such gratings for compressing chirped pulses from realizing Fourier transform-limited laser pulses. A solution was developed to compensate for the surface sag errors by varying the grating line spac…
The effects of garlic additive and part replacement of sulphur in the conventional curative systems (mercapto benzothiazole-sulphur) MBT/S, (cyclohexyl benzothiazole sulphenamide-sulphur) CBS/S, and semi-EV on the mechanical and cure properties of natural rubber compound have been studied. Results show that the additi…
Изучено гомогенное окисление 1,3-бутадиена (БД) в растворах Н2О2ГПССН3СN. Направление реакции зависит от природы металла, способного образовывать комплексы активного кислорода в составе гетерополисоединений (ГПС). Продукты радикального окисления БД (aкролеин, 3-бутен-1,2-диол, 2-бутен-1,4-диол, фуран) образуются в п…
International audience
To clarify the molecular pathogenesis of amyotrophic lateral sclerosis (ALS) associated with TAR-DNA binding protein 43 kDd (TDP-43), the quality and quantity of TDP-43 take a crucial role. Regarding to the quality of TDP-43, TDP-43 has been reported as an aggregate-prone protein. Especially the C-terminus of the TDP-…
Aberration corrected electron microscopy has revealed various aspects of materials and their functions, i.e., interfacial, ionic, chemical, photonic, plasmonic, magnetic and electronic aspects. A 50 pm resolution microscopy, particularly, enabled us to observe lithium ions in LiMn2O4, a material used as lithium ion ba…
Silica has been widely used as HPLC column packing material. However, the fact that base can attack the silanol and dissolve the silica embarrasses the utilization of silica stationary phase in high pH mobile phases (pH >8). In our previous research, the use of porous spherical silicon oxynitride (sph-SiON) material f…
環状イミノ化合物をイミド基形成の窒素原子源として利用することにより重付加でポリイミド類を得る新規な合成法を開発した．テトラカルボン酸二無水物とビス(2-イミダゾリン)との反応ではポリアミドイミド(PAI)ができ，ビス(2-オキサゾリン)との反応ではポリエステルイミド(PEI)が生成する．低分子のモデル反応を用いたメカニズムの解析の結果，重合反応の経路には二種類あることがわかった．2,2′-(1,3-フェニレン)ビス(1-メチル-2-イミダゾリン) (1Me13PBI)や2,2′-(1,3-フェニレン)ビス(2-オキサゾリン) (13PBO)のように1位に活性水素をもたない環状イミノ化合物の場合は反応の中間体としてベンゾ[1,3]オ…