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bean模型
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  bean model
     BEAN MODEL AND CRITICAL CURRENT DENSITY OF SUPERCONDUCTOR SAMPLES WITH DIFFERENT SHAPES
     Bean模型与不同几何形状样品中的临界电流密度
短句来源
     According to the measured value of the intensity of magnetization, the critical current density J_c at 77 K and in zero magnetic field is as high as 20000 A/cm~3, as is calculated by using Bean model.
     根据磁化强度测量结果按Bean模型推算,在77K零磁场下磁化J。 可达20000A/cm~2。
短句来源
     Relations of irreversible intragrain magnetization M and the critical current density Jc for four shapes of grain have been derived directly from the definition of magnetization and the assumption that the Jc in grain be constant (Bean model).
     假定晶内临界电流密度 Jc 为常量(Bean 模型),由磁化强度定义直接计算了四种形状的晶粒的不可逆磁化强眨 M 与 Jc 的关系,得到了相应的 Jc(△M)中的几何因子修正量.
短句来源
     Due to the weakness of entity bean model, it is undesirable to use entity bean as a data access solution for persistence layer.
     由于实体Bean模型的概念缺陷,使之不适合成为业务层的数据访问解决方案。
短句来源
     Magnetic hysteresis loops of different maximum applied fields were measured in LN2 temperature for sintered and melt-textured YBCO superconductors, and the relations between magnetic hysteresis loss, remanent magnetic hysteresis ΔMrem and the maximum applied field Hm were obtained. The results of themelt-textured samples are well coincident with Bean model, but the results of the sintered sample deviate from Bean model.
     用积分法测量了 YBCO 烧结样品和熔融织构样品在 LN_2温度下的磁滞损耗和剩余磁滞量Δm_(rem)与最大外场 H_m 的关系,发现织构样品的测量结果与 Bean 模型很吻合,而烧结样品偏离了 Bean 模型.
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  “bean模型”译为未确定词的双语例句
     It was shown that the Jc values reach 5.87×105A/cm2 (10K, OT) and 1.06℃105A/cm2 (5K, 3.5T), respectively.
     采用PPMS测试样品的磁滞回线并由Bean模型计算出线材的临界电流密度, 在10K,0T和5K,3.5T下Jc值分别为5.87×10SA/cm2 和1.06×105A/cm2。
     The bulk critical current density(Jc) of sample is about 2.9×103A/cm2, which was calculated according to the Bean critical state model.
     根据Bean模型计算出在5K时,在其自身磁场下块状样品的临界电流密度达到2.9×103A/cm2。
短句来源
     After the test, the magnetic hysteresis loops were measred by VSM and the critical current density of the samples was calculated by Bean's model.
     并用振动样品磁强计对YBCO超导体及其镀银和湿热试验后的样品进行了进测量,根据Bean模型计算了这些作品的临界电流密度。
短句来源
     We have measured the sample's zero-field cooled (ZFC) and the field-cooled (FC) magnetization as functions of temperature at 5mT and studied its hysteresis loop at various thickness.
     我们测量了场冷和零场冷过程的磁化与温度的关系,并研究了该样品在不同厚度时的磁滞迴线,发现 ΔM(ΔM=M+-M~-,M~+,M~-分别为升场和降场过程的磁化)正比于样品厚度,从而表明在该样品内建立了 Bean 模型所描述的临界态.
短句来源
     The goal of the new EJB 3.0 is to simplify the development of EJB. EJB 3.0 depends heavily on the metadata annotations which are used to generate artifacts such as interfaces and deployment descriptors. In EJB 3.0 Entity Bean becomes a pure object that is used in O/R mapping.
     新的EJB 3.0规范中通过大量采用Annotations、IoC,修改实体Bean模型为真正的对象-关系映射模型,从而大大地简化了EJB的开发。
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  相似匹配句对
     This improved mixing dielectric model yields an excellent fit to measured data.
     模型
短句来源
     model.
     模型
短句来源
     DISCUSSION ABOUT CRITICAL STATE BEAN MODEL
     Bean临界态模型动力学基础讨论
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     A Data Binding Model Between Java Bean and GUI Components
     Java Bean与GUI组件数据绑定模型
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  bean model
It is shown that the nature of the critical state in polycrystalline wafers, unlike that in a ceramic wafer, is not described by the Bean model.
      
It is shown that the evolution of magnetic flux distribution is adequately described in terms of a modified Bean model with time-dependent critical current.
      
These facts contradict the generally accepted Bean model.
      
It is shown that solutions like shock waves may arise beyond the applicability domain of the Bean model.
      
Pinning of planar vortices in a three-dimensional Josephson medium and the applicability of the Bean model
      
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The analysis of the present paper shoows that it is possible to extend theBean Model to study the properties of the nonideal type Ⅱ supereonductor,inmixed state,in the presence of a high frequency(10~5-10~7hz)field,assnmingthat the pinning force is so strong that the energy dissipation of the flux flowresistance can be neglected.The distribution of the magnetic field,the eriticalcurrent and the temperature inside a superconducting plate are calculated.Ourresults show that there exists a critical frequency.so...

The analysis of the present paper shoows that it is possible to extend theBean Model to study the properties of the nonideal type Ⅱ supereonductor,inmixed state,in the presence of a high frequency(10~5-10~7hz)field,assnmingthat the pinning force is so strong that the energy dissipation of the flux flowresistance can be neglected.The distribution of the magnetic field,the eriticalcurrent and the temperature inside a superconducting plate are calculated.Ourresults show that there exists a critical frequency.so long as the frequency ofthe external field is less than it,the superconducting plate,remains in the mixedstate.

本文分析表明,可以把Bean 模型推广到高频场((?)),研究非理想第二类超导体混合态的性质.假设钉扎很强,可以略去流阻损耗条件下,计算了一个超导体平板的磁场,临界电流及温度分布.证明存在着一个临界频率V_e,只要外场频率v

Relations of irreversible intragrain magnetization M and the critical current density Jc for four shapes of grain have been derived directly from the definition of magnetization and the assumption that the Jc in grain be constant (Bean model).It is shown that the diamagnetic field and hence demagnetization factor are not important except for Meissner state and the mixed state near Hc1 for type two superconductors For ceramic oxide superconductors with weak links,its intergrain field is nearly the same as the...

Relations of irreversible intragrain magnetization M and the critical current density Jc for four shapes of grain have been derived directly from the definition of magnetization and the assumption that the Jc in grain be constant (Bean model).It is shown that the diamagnetic field and hence demagnetization factor are not important except for Meissner state and the mixed state near Hc1 for type two superconductors For ceramic oxide superconductors with weak links,its intergrain field is nearly the same as the applied one.Influence of the nonsu-perconductive part of the bulk sample on its measured irreversible magnetization M has been discussed as well.

假定晶内临界电流密度 Jc 为常量(Bean 模型),由磁化强度定义直接计算了四种形状的晶粒的不可逆磁化强眨 M 与 Jc 的关系,得到了相应的 Jc(△M)中的几何因子修正量.对第二类超导体,退磁场和退磁因子在 Meissner 态和H_(c1)附近的混合态仍是重要的,在其余磁场中都可以忽略.对氧化物陶瓷超导块,由于弱连接,晶间磁场近似等于外场.讨论了块样中非超导部分对实验测量的磁化强度■及 Jc 估算的影响.

Through varying the temperature gradient and the cooling rate, the factors influencing the properties of the bulk Y-Ba-Cu-O materials fabricated by Melt-Textured Growth method were studied. The X-ray diffraction pattern of the cleavage plane of the sample fabricated under the more ideal conditions shows that the preferentially aligned along the a-b plane. We have measured the sample's zero-field cooled (ZFC) and the field-cooled (FC) magnetization as functions of temperature at 5mT and studied its hysteresis...

Through varying the temperature gradient and the cooling rate, the factors influencing the properties of the bulk Y-Ba-Cu-O materials fabricated by Melt-Textured Growth method were studied. The X-ray diffraction pattern of the cleavage plane of the sample fabricated under the more ideal conditions shows that the preferentially aligned along the a-b plane. We have measured the sample's zero-field cooled (ZFC) and the field-cooled (FC) magnetization as functions of temperature at 5mT and studied its hysteresis loop at various thickness. It has been found that M(M=M+-M-, where M+ and M- are the magnetizations in the increasing and decreasing field process, respectively is proportional to the sample's thickness. This indicates that the Bean critical state is founded in the sample. The critical current density estimated at 77K and 150mT is 6750 A/cm2.

通过改变温度梯度和降温速率等制备条件,研究了影响熔融织构生长法制备的 Y-Ba-Cu-O 块材性质的因素.在较为理想条件下制备的样品,其劈裂面的 X-射线衍射表明有很好的晶胞 c 轴垂直于劈裂面的取向.我们测量了场冷和零场冷过程的磁化与温度的关系,并研究了该样品在不同厚度时的磁滞迴线,发现 ΔM(ΔM=M+-M~-,M~+,M~-分别为升场和降场过程的磁化)正比于样品厚度,从而表明在该样品内建立了 Bean 模型所描述的临界态.另外在外磁场 150T 下77K 时,其磁临界电流密度达到6750A/cm~2.

 
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