共查询到20条相似文献，搜索用时 553 毫秒
1.
ＩＮＴＲＯＤＵＣＴＩＯＮＨｅｍｏｒｒｈａｇｉｃｆｅｖｅｒｗｉｔｈｒｅｎａｌｓｙｎｄｒｏｍｅ(ＨＦＲＳ)ｉｓａｎａｔｕｒａｌｆｏｃａｌｄｉｓｅａｓｅｃａｕｓｅｄｂｙｖｉｒｕｓｅｓｉｎｔｈｅＨａｎｔａｖｉｒｕｓｇｅｎｕｓｏｆｔｈｅｆａｍｉｌｙＢｕｎｙａｖｉｒｉｄａｅ.ＡｔｌｅａｓｔｅｉｇｈｔｓｅｒｏｌｏｇｉｃａｌｌｙｄｉｓｔｉｎｃｔＨａｎｔａｖｉｒｕｓｅｓｗｅｒｅｒｅｃｏｇｎｉｚｅｄ.ＨＦＲＳｉｓｅｎｄｅｍｉｃｉｎＣｈｉｎａａｎｄｉｓｏｎｌｙｃａｕｓｅｄｂｙＨａｎｔａａｎＶｉｒｕｓ(ｔｙｐｅⅠ)ｔｒａｎｓ… 相似文献
2.
Jianping 《上海大学学报(英文版)》1998,(2)
１ＩｎｔｒｏｄｕｃｔｉｏｎＢｅｃａｕｓｅｏｆｔｈｅｆａｓｔｄｅｖｅｌｏｐｍｅｎｔｏｆｅｃｏｎｏｍｙ,ｃｉｔｉｅｓａｒｅｂｅｃｏｍｉｎｇｌａｒｇｅｒａｎｄｌａｒｇｅｒ．Ｔｈｅｔｒａｆｉｃ,ｅｓｐｅｃｉａｌｙｔｈｅｐｕｂｌｉｃｔｒａｎｓｐｏｒｔａｔｉｏｎ... 相似文献
3.
1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｔｈｅｓｅｎｓｉｎｇｏｆｃａｒｂｏｎｍｏｎｏｘｉｄｅｉｓｃｒｉｔｉｃａｌｌｙｉｍｐｏｒ ｔａｎｔｆｏｒｓａｆｅｔｙｃｏｎｔｒｏｌｉｎｇａｓａｐｐｌｉｃａｔｉｏｎｓ ,ｂｅｃａｕｓｅｉｎ ｃｏｍｐｌｅｔｅｃｏｍｂｕｓｔｉｏｎｏｆｇａｓｅｓｃａｎｃａｕｓｅｓｅｒｉｏｕｓＣＯｐｏｉｓｏｎｉｎｇ .Ｄｅｖｅｌｏｐｍｅｎｔｏｆａｓｏｌｉｄ ｓｔａｔｅＣＯｓｅｎｓｏｒｉｓｔｈｅｒｅｆｏｒｅｄｅｓｉｒａｂｌｅｆｏｒｇａｓａｐｐｌｉｃａｔｉｏｎｓ .Ｉｎｔｈｅｉｎｃｏｍ ｐｌｅｔｅｃｏｍｂｕ… 相似文献
4.
WANG Ting fu PAN Qing yi ZHANG Jian ping School of Science Shanghai University Shanghai China 《上海大学学报(英文版)》2001,(4)
1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｔｈｅｓｅｎｓｉｎｇｕｎｉｔｏｆｃａｒｂｏｎｍｏｎｏｘｉｄｅｉｓｃｒｉｔｉｃａｌｌｙｉｍｐｏｒｔａｎｔｆｏｒｓａｆｅｔｙｃｏｎｔｒｏｌｉｎ ｇａｓａｐｐｌｉｃａｔｉｏｎｓ ,ｂｅ ｃａｕｓｅｉｎｃｏｍｐｌｅｔｅｃｏｍｂｕｓｔｉｏｎｏｆｇａｓｅｓｃａｎｃａｕｓｅｓｅｒｉ ｏｕｓＣＯ ｐｏｓｏｎｉｎｇ .Ｄｅｖｅｌｏｐｍｅｎｔｏｆａｓｏｌｉｄ ｓｔａｔｅＣＯｓｅｎｓｏｒｉｓｔｈｅｒｅｆｏｒｅｄｅｓｉｒａｂｌｅｆｏｒｇａｓａｐｐｌｉｃａｔｉｏｎｓ .Ｉｎｉｎｃｏｍｐｌｅｔｅｃｏｍｂｕ… 相似文献
5.
ＩＮＴＲＯＤＵＣＴＩＯＮＰｉｅｚｏｅｌｅｃｔｒｉｃｃｅｒａｍｉｃｍａｔｅｒｉａｌｓｈａｖｅｍａｎｙａｐｐｌｉｃａｔｉｏｎｓｉｎｍｏｄｅｒｎｔｅｃｈｎｏｌｏｇｉｅｓｂｅｃａｕｓｅｏｆｔｈｅｉｒｅｘｃｅｌｌｅｎｔｐｉｅｚｏｅｌｅｃｔｒｉｃｐｒｏｐｅｒｔｉｅｓ.Ｂｕｔｃｒａｃｋｓａｒｉｓｉｎｇｆｒｏｍｔｈｅｉｒｉｎｔｒｉｎｓｉｃｂｒｉｔｔｌｅｎｅｓｓｏｆ ｔｅｎｃａｕｓｅｐｉｅｚｏｅｌｅｃｔｒｉｃｃｏｍｐｏｎｅｎｔｓｆａｉｌｕｒｅ .Ｓｔｕｄｙｏｆｗｈａｔｃａｕｓｅｓｔｈｉｓｒｅｑｕｉｒｅｓｔｈｅｏｒｅｔ… 相似文献
6.
ＮＴＲＯＤＵＣＴＩＯＮＴｅｍｐｅｒａｔｕｒｅｆｉｅｌｄｃｈａｎｇｅｗｉｌｌｐｒｏｄｕｃｅｔｈｅｒ ｍａｌｓｔｒｅｓｓｅｓｉｎｓｔｒｕｃｔｕｒｅｓ.Ｉｔｉｓｗｅｌｌｋｎｏｗｎｔｈａｔｄｉｆｆｅｒｅｎｔｍａｔｅｒｉａｌｓｇｅｎｅｒａｔｅｄｉｆｆｅｒｅｎｔｓｔｒｅｓｓｒｅ ｓｐｏｎｓｅｓ ,ａｎｄｔｈａｔｉｎｓｏｍｅｃａｓｅｓ,ｔｈｅｒｍａｌｓｔｒｅｓｓ ｅｓａｒｅｌａｒｇｅｅｎｏｕｇｈｔｏｃａｕｓｅｓｔｒｕｃｔｕｒｅｆａｉｌｕｒｅ .Ｓｏｉｔｉｓｍｅａｎｉｎｇｆｕｌａｎｄｉｍｐｏｒｔａｎｔｔｏｓｔｕｄｙｄｙ… 相似文献
7.
1 Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｓｉｎｃｅｔｈｅ 90’ｓ ,ｔｈｅｆｅｍｔｏｓｅｃｏｎｄｌａｓｅｒｔｅｃｈｎｉｑｕｅｓｈａｖｅｂｅｅｎｕｓｅｄｔｏｓｔｕｄｙｖａｒｉｏｕｓｕｌｔｒａ ｐｒｏｃｅｓｓｗｉｔｈｉｎｍａｔｅｒｉａｌｓ,ｂｅｃａｕｓｅｏｆｉｔｓｈｉｇｈｔｉｍｅ ｒｅｓｏｌｕｔｉｏｎ .Ｉｎｃｈｅｍｉｃａｌｒｅａｃｔｉｏｎｓ ,ｃｈｅｍｉｃａｌｂｏｎｄｂｒｅａｋｉｎｇｏｒｂｏｎｄｆｏｒｍａｔｉｏｎｉｓｏｎｔｈｅｓｃａｌｅｏｆｆｅｍｔｏｓｅｃｏｎｄ (10 - 15ｓｅｃ ｏｎｄ) [1] .Ｗｉｔｈｆｅｍｔｏｓｅｃｏｎ… 相似文献
8.
Alberto Rocha TONG Fu 《上海大学学报(英文版)》1999,3(4):293-298
１ Ｉｎｔｒｏｄｕｃｔｉｏｎ Ｂｒｅａｓｔｃａｎｃｅｒｉｓｏｎｅｏｆｔｈｅｍｏｓｔｍａｌｉｇｎａｎｔｄｉｓｅａｓｅｓ,ｅｓｐｅｃｉａｌｌｙｆｏｒｗｏｍｅｎ．Ａｎｅａｒｌｙｄｅｔｅｃｔｉｏｎｃａｎｓａｖｅｌｉｖｅｓ,ａｃｈｉｅｖｅｄｂｙｅａｒｌｙｄｅｔｅｃｔｉｏｎｗｉｔｈｍａｍｍｏｇｒａｍｓ．Ｉｔｉｓａｎｉｎｔｅｎｓｉｖｅｔａｓｋｆｏｒｔｈｅｒａｄｉｏｌｏｇｉｓｔｂｅｃａｕｓｅｍｕｌｔｉｐｌｅｒｅａｄｉｎｇｓｏｆａｓｉｎｇｌｅｍａｍｍｏｇｒａｍａｒｅｎｅｃｅｓｓａｒｙｉｎｏｒｄｅｒｔｏｉｎｃｒｅ… 相似文献
9.
1 .因为我喜欢他 ,我才和他出去玩。误 :ＢｅｃａｕｓｅＩｌｉｋｅｈｉｍ ,ｓｏＩｗｅｎｔｏｕｔｗｉｔｈｈｉｍ .正 :ＢｅｃａｕｓｅＩｌｉｋｅｈｉｍ ,Ｉｗｅｎｔｏｕｔｗｉｔｈｈｉｍ .正 :Ｉｌｉｋｅｈｉｍ ,ｓｏＩｗｅｎｔｏｕｔｗｉｔｈｈｉｍ .分析 :连接两个分句 ,一个连词就够了。ｂｅｃａｕｓｅ引导原因状态从句 ,后面是主句。ｓｏ连接两个并列句。2 .告诉我 ,你对这本书是否有兴趣。误 :Ｔｅｌｌｍｅｉｆｏｒｎｏｔｙｏｕ’ｒｅｉｎｔｅｒｅｓｔｅｄｉｎｔｈｅｂｏｏｋ .正 :Ｔｅｌｌｍｅｗｈｅｔｈｅｒｏｒｎｏｔｙｏｕ’ｒｅｉ… 相似文献
10.
Lin Ruisen Xu Yaoliang 《上海大学学报(英文版)》1998,2(3):249-251
１ＩｎｔｒｏｄｕｃｔｉｏｎＡｓｗｅｌｋｎｏｗｎ,ｔｈｅｅｌｅｃｔｒｉｃｆｕｒｎａｃｅｉｓａｔｉｍｅｄｅｌａｙｉｎｅｒｔｉａｌ,ｖａｒｉａｂｌｅｐａｒａｍｅｔｅｒａｎｄｎｏｎｌｉｎｅａｒｃｏｎｔｒｏｌｅｄｏｂｊｅｃｔ．Ｂｅｃａｕｓｅｏｆｌｉｍｉｔａｔｉ... 相似文献
11.
Ultra-high vacuum gaseous hydrogen permeation experiments on Fe3Al-based alloy were performed in the temperature range of 330∼450°C with an upstream hydrogen pressure between 3. 38×104 Pa and 7.28×104 Pa. The results show that the hydrogen diffusivity and permeability in Fe3Al-based alloy obey Arrhenius relationship in the experimental temperature range and the hydrogen permeation process is controlled
by the lattice diffusion of hydrogen at relative high temperature. The activation energy of hydrogen diffusion in the Fe3Al-based alloy was found to be 75 kJ/mol.
Supported by the National Natural Science Foundation of China (59895157) 相似文献
12.
The process of gaseous hydrogen charging into a Ti3Al-based alloy in the temperature range of 500–650°C is investigated. The results showe that the relationship between the
average hydrogen concentration at constant temperature and charging time reveals a parabolic rate law. Applying the theory
of lattice diffusion to analyze the hydrogen diffusion in the alloy, we find that the apparent activation energy of hydrogen
diffusion is 90.40 kJ/mol, and the equilibrium hydrogen content in the alloy depends on the temperature of the gaseous hydrogen
charging process.
Project supported by the Natural Science Foundation of Shanghai (93QE14002) 相似文献
13.
透氢膜材料由于在氢分离方面的广泛应用而备受关注.介绍了目前研究较多的 Pd 及其合金透氢膜和质子-电子混合导体透氢膜,重点综述了高温混合导体透氢膜的发展近况,对其发展前景和方向进行了展望. 相似文献
14.
离心泵产品说明书中的安装高度与吸上真空高度的关系式是在外压9.81×104Pa下输送20℃清水时的测定结果.当外压不为9.81×104 Pa时,或流体温度不是20℃清水时,离心泵的安装高度与吸上真空高度的关系式会相应发生调整.为了探讨离心泵的安装高度,利用允许吸上真空高度,从外压和输送对象两方面对离心泵的安装高度进行探讨,得出了安装高度与允许吸上真空高度的三个关联式. 相似文献
15.
本文通过测量Co3Ti、 Ni3Al、 Fe3Al、 TiAl四种金属间化合物在氧气、氢气中在2×10-4/s形变速率下的拉伸性能，研究了
其在氢气中的室温环境脆性.研究结果表明，上述四利金属间化合物在H2中的脆化程度(用氢脆因子
IH2=[(δo2一δH2)/δo2]×100％表示)是不同的，其大小依次为Co3Ti＞Ni3 Al＞Fe3Al＞TiAl.其脆化程度的差异用金属间化合物中
基体金属对氢气的催化裂解作用的强弱进行了很好的解释. 相似文献
16.
1IntroductionNickel-based alloys containing 20 -30 wt % Mo isknown to be essential for corrosion resistance in re-ducing media[1],especially for resistance to HCl at alltemperatures and concentrations[2]. However , uponexposure to elevated temperatures in the range of600 -800 ℃,these alloys suffer an al most completeloss of roomtemperature ductility as a result of long-range ordering (LRO) to Ni4Mo .It is considered thatthe loss of ductility mainly results from the environ-mental embrittle… 相似文献
17.
The fracture behavior of disordered and ordered Ni4Mo alloy was investigated by tensile tests in hydrogen gas or during hydrogen charging. The results show that the ductility of the disordered alloy decreased slightly with the hydrogen pressure increasing, while that of the ordered alloy decreased rapidly with the hydrogen pressure increasing. However, the ductility of both disordered and ordered alloys reduced similarly seriously with the charging current density increasing. Therefore, the mechanism of order-induced embrittlement of Ni4 Mo alloy in hydrogen gas is supposed to be that atomic order accelerates the kinetics of the catalytic reaction for the dissociation of molecular H2 into atomic H. 相似文献
18.
建立阿司匹林片含量测定的电化学分析方法.采用LK98BII微机电化学分析系统和MODEL JP-303极谱分析仪对阿司匹林进行了线性﹑回收率﹑精密度以及溶液稳定性等实验;用氧化剂存在时阿司匹林产生的极谱催化波提高分析灵敏度,用线性扫描极谱法实现快速测定.结果在KH2PO4-Na2HPO4支持电解质中,阿司匹林产生一个催化氢波.加入H2O2后,该催化氢波被催化,峰电流增加约50倍,峰电位基本不变,产生一个较灵敏的平行催化氢波.二阶导数还原波的峰电流ip″与阿司匹林浓度在4.0×10-7～3.0×10-6mol/L范围内呈良好线性关系,检出限为2.0×10-7mol/L.结果表明该方法简便,快捷,专属性强,结果准确可靠. 相似文献
19.
硼对金属间化合物Ni_3Fe氢气诱发环境氢脆的影响(英文) 总被引：1，自引：0，他引：1
In this paper the tensile properties of both ordered and disordered Ni-24Fe and Ni-24Fe-0.03%B(wt%)alloys in gaseous hydrogen was investigated.The result shows that the ductility of the disordered Ni_3Fe is significantly larger than that of ordered material in gaseous hydrogen.However,the ductility of ordered Ni3Fe doped with 0.03%B is nearly the same as that of disordered one indicating the obvious suppressing effect of boron on the H_2-induced embrittlement.Based on the segregation behavior of boron in Ni_3Al,it is proposed that the suppressing effect of boron in Ni_3Fe on the H_2-induced embrittlement is attributed to the segregation of boron on grain boundaries,thereby reducing the hydrogen diffusivity along the grain boundaries. 相似文献
20.
赵一生 《深圳职业技术学院学报》2010,9(5):60-63
本文讨论了铝基非晶合金的制备方法与力学性能．对当前铝基非晶合金的制备方法所取得了突破性进展进行了阐述．在前人文献基础上对部分铝基非晶合金的力学性能与常规铝合金进行分析比较,并对铝基非晶合金在装甲材料中的应用前景进行了展望． 相似文献