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Abstract: For random growing networks, Barabás and Albert proposed a kind of model in Barabás et al. [Physica A 272 (1999) 173], i.e. model A. In this paper, for model A, we give the differential format of master equation of degree distribution and obtain its analytical solution. The obtained result P(k, t) is the time evolution of degree distribution. P(k, t) is composed of two terms. At given finite time, one term decays exponentially, the other reflects size effect. At infinite time, the degree distribution is the same as that of Barabás and Albert. In this paper, we also discuss the normalization of degree distribution P(k, t) in detail. [Copyright &y& Elsevier]

Landau theory is used to describe the ferroelectric trigonal phase of Boracites. The temperature dependence of the principal reciprocal susceptibility is obtained. The calculated result shows that at the Curie temperature Tc, the spontaneous polarization jumps. The component of the principal reciprocal susceptibility perpendicular to polarization jumps but the component parallel to polarization does not. A possible experimental scheme for the measurement of the principal reciprocal susceptibility components is presented. [Copyright &y& Elsevier]

Multiple injury refers to the injury of two or more anatomical parts of the body caused by mechanical injury factors. Even if only one injury exists alone, it can endanger limbs or lives. Therefore, nursing plays an important role in its treatment. Here, we investigated the application and clinical effect of nursing based on the Kano model in emergency multiple injuries. A case-control study was designed, where 48 patients with multiple injuries in the emergency department were divided into the control group to perform routine care and 48 patients were divided into the study group to carry on nursing based on the Kano model. The first-aid indexes, success rate of rescue, inflammatory response indicators, satisfaction rate of nursing, incidence of adverse events, and prognosis were compared between the two groups. A monofactor analysis showed that the emergency response time, admission time, and emergency department rescue time were shorter in the study group than those in the control group, indicating a higher success rate of rescue with nursing based on the Kano model. For the immunity of patients, the scores of mental states and the serum levels of inflammatory factors were lower in the study group than those in the control group. In addition, the rate of nursing satisfaction and good prognosis in the study group was significantly higher than those in the control group, and the incidence of adverse events was significantly lower than that in the control group. These results indicated that nursing based on the Kano model in patients with emergency multiple injuries can reduce the body inflammatory reaction, reduce the risk of adverse events, improve the prognosis of patients, and obtain high patient satisfaction. [ABSTRACT FROM AUTHOR]

The phenomenological theory has been applied to investigate the phase transition of the Rochelle salt crystal. The Helmholtz free energy expansion of the Rochelle salt crystal is obtained by using the basis functions of all the irreducible representations of the paraelectric phase group D2. An appropriate explanation of the existence of two Curie temperatures in the ferroelectric phase transition of the Rochelle salt crystal is put forward. The temperature dependence of the spontaneous polarization is obtained. The independent components of the reciprocal susceptibility in both the paraelectric phase and the ferroelectric phase are calculated out. The theoretical curves of the spontaneous polarization and the main reciprocal susceptibility ζ11 varying with the temperature accord with the experimental results of other literatures. [ABSTRACT FROM AUTHOR]

Abstract: Full-Heusler compound Ti2NiAl with Hg2CuTi-type structure is demonstrated to be a new half-meltal ferromagnet by first-principles calculations. The compound has a complete (100%) spin polarization around the Fermi level in the total density of state. The band structure calculations show that the majority spin is strongly metallic, while the minority spin shows an insulating behavior. The compound has a total magnetic moment of −3.0μB per formula on first-principles calculations which complies well with the Slater–Pauling (SP) rule. Though having different atomic surroundings, the profiles of atom-projected density of states of Ti(A) and Ti(B) are similar. The half-metallic character is retained when the lattice constant ranging from −12.8% to +4.9%. [Copyright &y& Elsevier]