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Blends of polypropylene (PP) with epoxidized natural rubber (ENR) were prepared using melt mixing. Dynamic mechanical analysis (DMA) was employed to investigate the miscibility of the two polymers. The morphology evolution with changes of composition was studied using scanning electron microscopy (SEM). Dynamic shear tests were carried out within a frequency range of 0.01 to 100 rad/s at different temperatures. It was found that the dynamic viscosity of the blend increases significantly with increasing ENR content. The shear thickening can take place at low shear frequencies, depending on temperature and composition. Isothermal plots of log G 0 (storage modulus) against log G 00 (loss modulus) were obtained. According to the temperature dependence of the plots, the miscibility of the blends is discussed. Differential scanning calorimetry (DSC) was used to investigate the nonisothermal crystallization of the blends. The crystallization process can be described by the modified Ozawa kinetic equation. The values of the kinetic parameter, F(T), were calculated. It was found that the crystallization capability of PP in the blend strongly depends on the composition.

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To compare the clinical efficacy of tamoxifen and Chinese patented medicine (Pingxiao capsules) in patients with gynecomastia and discuss the safety of the two treatments. We retrospectively analysed the clinical data of 388 male patients with gynecomastia who were treated in the Outpatient Clinic of our hospital between January 2010 and December 2020. There were 103 patients in the tamoxifen (TAM) group and 103 patients in the Chinese patented medicine group. There were 182 patients in the observation group (non-medication group; age range, 11-75 years; average age, 33.1 years). The natural outcomes were compared between the observation and two medication groups under the same conditions. Disease progression was compared between the observation and two medication groups over the same treatment duration to confirm the efficacy of the medication treatments. Patients with clinical grade 2 gynecomastia accounted for the highest proportion of patients in the TAM group. The percentage of patients with clinical grade 2 gynecomastia was comparable in the Chinese patented medicine and observation groups. The percentage of patients with clinical grades 1 and 3 gynecomastia was the lowest in the TAM group and comparable among the three groups (p = 0.014). The TAM group had the largest number of patients achieving breast shrinkage, and therefore had the best efficacy (p = 0.000). Among the three groups, the surgery rate was the highest in the observation group (p = 0.000). Patients with the greatest glandular tissue thickness achieved better outcomes after medication treatment (p = 0.000). Patients with a higher clinical grade also had a higher surgery rate (p = 0.000). Some patients from the TAM and Chinese patented medicine groups had side effects. TAM results in better outcomes than Chinese patented medicine in gynecomastia patients. The surgery rate is the highest in the observation group. In addition, among some patients with a greater glandular tissue thickness, the higher the clinical grade is, the higher the surgery rate is. Both TAM and Chinese patented medicine cause some side effects and should be used with caution along with continuous follow-up evaluation of patients receiving either treatment.

-Fractal theory was firstly applied in gray scale control of Active Matrix/Organic Light Emitting Diode (AM-OLED) display system, which settled the problem of time redundancy of traditional scanning methods. In the experiment, a fractal scanning controller was designed and applied in a AM-OLED matrix display with 12 by 12 pixels. Timing simulation results indicate that compared with the traditional scanning methods, the novel method can improve scanning efficiency evidently, especially in the case of high gray scale and large screen. Therefore, the method provides a new way to solve the bottle problem of high articulation multimedia FPDs development.