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10篇 您的检索式:作者名="H.Harada"
    题名 作者 年代 出处 被引量
1Interaction between crack and twins in TMS-82 superalloy during thermomechanical fatigue process显示文摘Thermomechanical fatigue behavior of a nickel base single crystal superalloy TMS-82 has been investigated.It was found that the micropores in the alloy tend to initiate large amounts of deformation twins and the crack causes many twins to occur during its propagation.It is postulated that these twins around the micropores or the crack are induced by the stress eld of the micropores or the crack tip,respectively.A thermodynamic model is adopted linking the twin formation energy with the stress eld around the crack tip,which explains the observed results with good consistency.The in uencing factors for a crack to stimulate twins around it are shown by the model,which might provide possible ways to enhance the alloy's thermomechanical fatigue performance.Baidong Fu Jianxin Zhang H.Harada 2013Progress in Natural Science:Materials International2013,23,5:1
2植物开花的激素调节(四)显示文摘Konishi(1956)有系统地研究了生长素及其代谢作用对于植株开花形成和茎伸长的效应.从抽苔植株茎扦条的顶端至基部切割其韧皮部,其IAA或者NAA的运输总量比丛生植株的多.当植株在长日照状态时,其基部生长素的总量和生长索扩散的数量逐渐地增高.植株在长日照处理后不久,IAA氧化酶的活力下降.他断定,抽苔植株的生长和素含量比丛生植株的多,是由于减少了IAA氧化酶的活力.他还报道,大约在2个月内每天喷布IAA,诱导了丛生植株抽苔和花蕾形成.Liverman和Lang(1956)应用IAA处理在长光周期初期条件下的植株,也得到类似的结果,但植株开花的反应较弱.S.Tanimoto H.Harada 苏明华 1992福建热作科技1992,,3:1
3轿车发动机活塞冷却方法研究——第一部分 实现高传热系数的基础试验显示文摘轿车发动机活塞的冷却技术对于提高压缩比和控制活塞变形十分重要。众所周知,在计算机和空调器中采用热管能够明显改善导热率,然而,发动机冷却不能采用常规的热管,因为气流和液流会受到振动的干扰,因而会使导热率很低。开发了1种新颖的热管,并进行了试验,利用1台高速往复试验装置确定了它的传热系数。试验是在单热管基础上进行的,但成功地使高速往复运动下的传热系数比静止状态的传热系数提高了1.6倍。详细介绍观测到的特性及验证方法。下一步计划将这一方法应用在发动机活塞上。K.Matsumoto H.Harada H.Taniguchi N.Ito 王晓滕 李研芳 2016国外内燃机2016,48,4:0
4植物开花的激素调节(一)显示文摘高等植物花的发端,标志着其营养生长向生殖发育的重要转变,这是植物生命周期中最重要的活动之一.许多研究者对植物开花生理学作了大量的研究.正如Lang(1961、1965)、Searle(1965)、Evans(1971)和Zeevart(1976)的评述论文,以及由Evans(1969b)、Beraier(1970)和CNRS(1979)主编的专著。S.Tanimoto H.Harada 苏明华 1991福建热作科技1991,,3:0
5植物开花的激素调节(二)(续一)显示文摘红藤[Chenopodium rubrum]对于这种植物,生长素的作用位置似乎集中在顶端分生组织(Krekule和Privratsky,1974).光诱导引起侧生分生组织的有丝分裂活动增强,而对苗端施用生长素则使它受到抑制(Seidlova和Khatoon,1976).因而,生长素促进植物花的发端,可能是抑制了腋下的生长而刺激了苗端的生长.Seidlova(1980)报道。S.Tanimoto H.Harada 苏明华 1991福建热作科技1991,,4:0
6植物开花的激素调节(三)显示文摘Konishi(1956)有系统地研究了生长素及其代谢作用对于植株开花形成和茎伸长的效应.从抽苔植株茎扦条的顶端至基部切割其韧皮部,其IAA或者NAA的运输总量比丛生植株的多.当植株在长日照状态时,其基部生长素的总量和生长索扩散的数量逐渐地增高.植株在长日照处理后不久,IAA氧化酶的活力下降.他断定,抽苔植株的生长和素含量比丛生植株的多,是由于减少了IAA氧化酶的活力.他还报道,大约在2个月内每天喷布IAA,诱导了丛生植株抽苔和花蕾形成.Liverman和Lang(1956)应用IAA处理在长光周期初期条件下的植株,也得到类似的结果,但植株开花的反应较弱.S.Tanimoto H.Harada 苏明华 1992福建热作科技1992,,1:0
7植物开花的激素调节(五)显示文摘1946年,罗士苇首先观察到菟丝子属的Cuscuta compestris茎尖在离体培养中形成花芽.自从他的这一报告以后,许多研究工作者研究了一些植物种类茎尖离体培养中的开花生理学及其(或者)环境因素的控制作用。S.Tanimoto H.Harada 苏明华 1993福建热作科技1993,,1:0
8Effect of Cold-Rolling on Precipitation Phenomena in Sensitized Type 316L and 304L Austenitic Stainless Steels显示文摘Precipitation phenomena in Type 316L and 304L stainless steels were studied mainly by transmission electron microscopic (TEM) observations after cold-rolling ranging from 0% (as solution annealed) to 80% reduction in thickness, and then by sensitization treatment. Precipitates were identified by electron diffraction analysis and EDS analysis. Precipitates observed in sensitized 316L stainless steel were sigma and chi phases, whereas carbide and sigma were observed in sensitized 304L stainless steel. Recrystallized grains were formed in 30% cold-rolled and sensitized 304L. However, the tendency toward recrystallization in sensitized 316L was much lower than in 304L. Precipitation of sigma and chi phases was accelerated by cold-rolling and they were observed at grain boundaries in lower cold-rolling; they were also seen, in grain interiors in higher cold-rolling. Higher deformation induced partially recrystallization combined with precipitation, resulting in the formation of heterogeneous microstructures.H.Tsubakino A.Yamamoto T.Yamada L.Liu M.Terasawa S.Nakahigashi H.Harada 2004材料热处理学报2004,25,5:0
9High-temperature deformation of L1_2-FCC two-phase Ir-15Nb-Ni refractory superalloys显示文摘The creep behaviors of the Ni added Ir 85 Nb 15 alloys were investigated at 1?650~1?800?℃ by compression tests in vacuum. X ray diffractometry, transmission electron microscopy and scanning electron microscopy were conducted to characterize the microstructure and lattice misfit change by the addition of Ni in the Ir 85 Nb 15 alloy. The results reveal that the Ni addition has a significant effect on the creep resistance of the Ir 85 Nb 15 two phase refractory superalloys. Basing on the results, the relationship among the Ni addition, lattice misfit, microstructure development, and the creep behavior in the Ni added Ir 85 Nb 15 alloys is discussed.Y.F.Gu, Y.Yamabee Mitarai, S.Nakazawa, H.Harada (National Institute for Materials Science, 1 2 1 Sengen, Tsukuba, Ibaraki 305 0041, Japan) 2002中国有色金属学会会刊:英文版2002,12,4:0
10耕作和施肥对日本大豆田线虫种群结构的影响显示文摘免耕体系(NT)下土壤生物区系多样,真菌的降解速度慢。然而有时候通过分析线虫种群结构不能发现免耕土壤的这一特征,主要是由于以往研究的试验处理或是取样时期太短或是没有代表性。土壤线虫的分布因地理位置和土壤类型而异,这对利用线虫种群结构分析评价土壤生物多样性产生一定的影响。H.Okada H.Harada 潘凤娟(摘译) 2011大豆科技2011,,1:0
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