查询词典 Fe

A quantitative description of variation of the demagnetization curve rectangularity of Nd-Fe-B magnets with sintering process and a study of the effect of relative density, grain size and its distribution on the demagnetization curve rectangularity of Nd-Fe-B magnets are presented in this paper.

定量描述了Nd-Fe-B磁体J-H 退磁曲线方形度与烧结过程的关系，分析了相对密度、晶粒尺寸及其分布对磁体J-H 退磁曲线方形度的影响规律。

In the second section, the increase of sintering temperature changes the structure of La〓Sr〓Mn〓Fe〓O〓 from rhombohedron to cubic, increases resistivity, and decreases T〓.

第二章，第一节系统地研究了掺杂Fe对La〓Sr〓Mn〓Fe〓O〓体系的结构及电磁特性的影响。

We prepared bulk samples of metastable solid solutions with bcc and fcc structuresin the Fe-Cu system by using shock compression with mechanical alloying, and the magnetization and valence electron were measured and calculated. The saturation magnetic-moment curve versus mumber of electrons per atom at 0K was found to be reasonably similar to the-electrons/atom curve of other transition-metal binary systems.

用机械合金化锻压方法制备了bcc和fcc结构的块状亚稳态Fe-Cu固溶体系统，并对系统的磁化强度、价电子结构进行了测量和计算，从亚稳态 Fe-Cu固溶体的饱和磁化强度Ms-e/a曲线可看出：大约在26.2e/a的区域Ms有最大值，并且在大约28.6e/a的区域接近零。

In addition, the Fe content was gradually increased from the posterior part to the ante-rior part of the silk gland.

在丝腺体中， Fe的含量从丝腺体的后部到前部逐渐增加；但Mn含量的变化趋势与Fe不同，它在丝腺体中部的含量最低。

The fact that the coordination number in the second subshell is smaller than that of α-Fe〓O〓 might be an indication that there is a small amount of FeO mixed with α-Fe〓O〓 in aerosol particles.

同时也发现，在第二配位亚层中的O离子配位数较氧化铁小，源于样品中含有FeO，且与Fe〓O〓物相有一定程度的混杂。

As metal ions can interact with both of ADM and DNA, they undoubtedly affect the interaction between ADM and DNA. Addition of a large excess of Cu or Fe into a solution of well-formed ADM-DNA complex makes the metal ions simultaneously bind to ADM and DNA to form a ternary complex. Otherwise,〓 or 〓 complexes can bind directly to DNA to form a ternary complex.

金属离子-ADM-DNA三元体系的光谱研究表明，当ADM与DNA结合后，大量Cu或Fe的加入可以使金属离子进入到ADM-DNA复合物中，并同时与ADM和DNA键合，形成三元复合物；反之，若ADM先与Cu或Fe配位，生成的金属配合物则能够直接与DNA结合形成三元复合物。

It must be pointed out that the silver-bearing tetrahedrite and freibergite of the Caijiaying deposit have about the same iron and zinc content, but differ from the Fe-rich and Zn-poor tetrahedrite and freibergite in the Xiasai, Lamo, Mount Isa and Langdal deposits.

蔡家营矿床的含银黝铜矿和银黝铜矿以Fe、Zn含量近似而有别于其余矿床的富Fe贫Zn特征。

Narrow Line Seyfert 1s (NLS1s, including high luminosity quasars with similar properties) are very important extrema of type Ⅰ AGNs. The unusualness of NLS1s is very useful to test the viabilities of AGNs models and thus provide a new way probing into AGN phenomena. The ratio of Fe to α-element (e. g., O, Ne, Mg...), Fe/α, can serve as an excellent indicator for constraining the ages of star-forming systems.

中文题名窄线SeyfertⅠ星系与活动星系核光学FeⅡ发射线副题名外文题名论文作者周宏岩导师周又元王挺贵学科专业天体物理研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数127页关键词活动星系核河外星系馆藏号BSLW /2003 /P15 /7 窄线SeyfertⅠ型星系(Narrow Line Seyfert 1，NLS1，包括具有类似性质的类星体)是具有极端性质非常重要的一类Ⅰ型AGN，对NLS1的深入研究是限制和完善活动星系核理论模型的一条新途径。

The stablity of second phases in iron aluminide matrices is analyzed based on the thermodynamic data of binary alloy, which offers the possibility to fortell the chemical reaction in the composite system, and shows that Al〓O〓 is most stable in Fe〓Al matrices.

复合材料强韧化是Fe〓Al合金发展的方向，利用二元化合物热力学数据，提出预测第二相稳定性的计算方法，认为Fe〓Al基合金中，Al〓O〓是最稳定的第二相。

Along with the increasing time and degree of water stress, Fe、Ca、Mg、K contents of A.persica and Amygdalus communis L. had different change. Fe、Ca、Mg、K contents of root、stem and leaf had different change too.

4随着胁迫程度的加深和时间的延长，Fe、Ca、Mg、K元素含量的变化在毛桃和石头扁桃之间不同，在它们根、茎、叶中的变化也不同。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。