A ferromagnetic-paramagnetic phase transition is observed in the temperature dependence of magnetization, there are two transitions peak in the temperature dependence of resistivity and the high temperature peak in Curie-temperature T_c corresponding the ferromagnetic-paramagnetic phase transition.

According to the two transitions of the contents and fields and the methods and means at the progress of the development of the western part,it is necessary for the western part to have a new strategically developing path,a regional classification and strategic emphases.

It is suggested that the transition be due to the motion ofPET or PET-rich segments in the non-crystalline region of copolymer. The second group includescopolymers containing more than 60 mole% PHB,in which two transitions appear above room temper-ature.

这一转变应为共聚酯中非晶区的 PET 链段或富 PET 链段的运动引起,另一类为 PHB 含量大于60mol%的共聚酯,它们在室温以上均出现α_4和α_H 两个转变。

The results from δ(~(13)C) and δ(~(15)N ) of sedimented OM in the recent 50 years demonstrated that there existed two transitions of the lake environment respectively in 1950s and 1990s, which is coincident with the instrumental data.

The normal education in the United States has tended towards an open and non-directional teacher training model from a close and directional one due to its two transitions at the end of 19th century.

At the same time, the two transitions (from the requirements to SA-based analysis model, namely architectural baseline; from the system's architectural model to OO design and implementation model appropriate to practical development) are also detailedly discussed in the paper.

Based on the important significance of the reform in higher mathematics teaching, this paper discusses the two transitions that must be well treated in the reform in higher mathematics teaching and probes into the classroom teaching methodology.

One origin can be traced to the late Miocene while the other two transitions occurred more recently during the Pliocene.

Our analysis shows that for In0.15Ga0.85As/GaAs, the observed two transitions are consistent with either type I or type II alignment of the light hole band for band offset ratios within the accepted range.

It is found that the former optical gain is enhanced extremely by the latter excitonic effect through the coupling between the two transitions.

The use of two transitions resulted in a constant value of bandgap over the entire range of conductivities studied.

The specific wear rate of the pin undergoes two transitions: severe to mild at low load and mild to severe at high load.

The co-existence of two transition phases β1' and β2' at the initial stage of 165℃ aging of a Mg-5% Zn alloy was shown by means of X-ray diffraction method. The one-dimensional diffraction phenomena of the thin rod-like transition phase β2' were investigated in detail. This transition phase has a hexagonal lattice structure, its long axis is the 6-fold symmetry axis [0001]β'2. The lattice constants of β2' and its orientational relationship with the magnesium matrix are found as follows:

This paper is the third part of a theory of the coherent propagation of light in semiconductors. Based on the previous papers (Ⅰ) and (Ⅱ)[1], the Maxwell-Bloch equation describing the coherent propagation of light in semiconductors is derived; the equation is then used to discuss a number of possible effects of coherent propagation in both interband transitions and exciton transitions. In particular, the phenomena of self-induced transparency are analysed, and it is shown that the phenomena may occur in the...

This paper is the third part of a theory of the coherent propagation of light in semiconductors. Based on the previous papers (Ⅰ) and (Ⅱ)[1], the Maxwell-Bloch equation describing the coherent propagation of light in semiconductors is derived; the equation is then used to discuss a number of possible effects of coherent propagation in both interband transitions and exciton transitions. In particular, the phenomena of self-induced transparency are analysed, and it is shown that the phenomena may occur in the above two transitions.

This paper introduces a highly sensitive experimental device for measuring superconducting transition temperature Tc with alternating-current resistance, using the lock-in amplifier and alternating-current modulating signals. Experimental results show that using not only can this method we measure the samples of eopper-claded wire with larger section, which are difficult to measure by using primary direct-current resistance method but also determine the transition temperature Tc of each phase of...

This paper introduces a highly sensitive experimental device for measuring superconducting transition temperature Tc with alternating-current resistance, using the lock-in amplifier and alternating-current modulating signals. Experimental results show that using not only can this method we measure the samples of eopper-claded wire with larger section, which are difficult to measure by using primary direct-current resistance method but also determine the transition temperature Tc of each phase of continuous multiphase superconductors respectively. It is found, for instance that there are three transition steps for the transition temperature Tc of multifilamentary Cu-Nb3Sn composites in situ formed: that there are two transition steps for that of lither bronze diffusion stabilized Nb3Sn and that there are two for that of simulating multiphase superconductors with paralleling lead and niobium. The transition curve shows that the amplitude of the transition step of each phase is certainly propertional to the relative content of the phase. The curve is a non-single-valued function and the part of it before Tc is found to possess the apparent property of negative resistance. The transition temperature Tc measured by this method is in excellent agreement with that measured by either the direetcurrent resistance method or the inductance one.