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Background: Post-earthquake fire is one of the secondary disasters caused by the earthquake; many earthquakes around the world have brought about severe fires and led to enormous losses. It is of great significance to study the fire resistance of structures after earthquake to improve the level of urban disaster prevention and reduce the fire loss. Methods: A nonlinear finite element model of composite joints subjected to post-earthquake fires is established based on ABAQUS software. The state after the earthquake damage is imported into the thermal-stress analysis model through the restart request in ABAQUS, and considered as the initial state of the thermal-stress analysis model. Results: It is noticed that when the damage index is less than 0.517, the damage level shows significant effect on the fire resistance, but the influence is no longer significant when the damage index reaches 0.781. When only the column is exposed to fire, the column showed obvious local buckling and overall bending deformation. Meanwhile, when the joint area below the concrete slab is exposed to fire, the joint shows a mixed failure mode of the excessive vertical displacement of beam end and column instability. Conclusion: The fire resistance of the composite joint decreases gradually with the increase of seismic damage level. The fire condition has a significant effect on the fire resistance of the composite joints; with the increase of fire area, the fire resistance of composite joints with same damage degrees decreases gradually.

A nonlinear transient three-dimensional finite element model for the laser welding process is developed to investigate the temperature and residual stress distribution. All the major physical phenomena associated to the laser welding process, including temperature dependent thermo-physical and mechanical properties are taken into account in the model. The heat input to the model is assumed to be a Gaussian heat source. Results show that the temperature distribution of laser welding is consistent with the actual, and along-welding line longitudinal stress and transverse stress are retained in the weld zone after laser welding and cooling to the room temperature.

To observe the clinical effect of low-dose testosterone undecanoate capsules combined with tadalafil on late-onset hypogonadism (LOH) accompanied with ED.Ninety cases of LOH accompanied with ED who met the inclusion criteria were randomly divided into a control group and a combination therapy group, the former treated with tadalafil and the latter with low-dose testosterone undecanoate capsules combined with tadalafil. The LOH symptoms, IIEF-5 scores, sexual encounter profile (SEP) scores, prostate volumes, and the levels of total testosterone (TT), free testosterone (FT) and prostatic specific antigen (PSA) were recorded and compared between the two groups before and after treatment.The IIEF-5 and SEP scores and the TT and FT levels were 20.6 +/- 3.8, 4.02 +/- 1.08, (15.4 +/- 3.4) nmol/L and (0.391 +/- 0.062) nmol/L, respectively, in the combination therapy group after treatment, significantly higher both than 15.7 +/- 3.9, 1.49 +/- 0.82, (10.1 +/- 1.2) nmol/L and (0.200 +/- 0.045) nmol/L before treatment (P0.01) and than 8.6 +/- 3.6, 3.50 +/- 1.21, (10.2 +/- 1.2) nmol/L and (0.210 +/- 0.051) nmol/L in the control group after treatment (P0.01).Low-dose testosterone undecanoate capsules combined with tadalafil has a definite clinical effect and no obvious adverse reactions in the treatment of LOH accompanied with ED.

To investigate the effect of low-dose daily de-escalatory administration of tadalafil on psychological erectile dysfunction (ED).We randomized 84 psychological ED patients into an observation and a control group of equal number to receive low-dose daily de-escalatory administration and on-demand medication of tadalafil, respectively, both for 2 months. We compared the scores on IIEF-5 and erection hardness (EHS) between the two groups before and after the treatment.The treatment and follow-up were accomplished for 79 cases, with 5 withdrawals in the control group. The IIEF-5 and EHS scores were remarkably improved in both the observation and control groups after treatment. The rate of therapeutic effectiveness was significantly higher in the observation group than in the control (95.2% vs 86.5%, P0.05).Low-dose daily de-escalatory administration of tadalafil is highly effective and even better than on-demand medication of tadalafil for psychological ED.

To evaluate the clinical effects of Compound Xuanju Capsule combined with tamoxifen citrate on the seminal parameters of men with idiopathic oligozoospermia.We equally assigned 120 men with idiopathic oligozoospermia to receive Compound Xuanju Capsule plus tamoxifen citrate (experiment group) or tamoxifen citrate alone (control group). After 3 months of medication, we compared the concentration and total number of sperm with the baseline, and analyzed the influence of the duration of natural infertility on the therapeutic effect.Both the concentration and total number of sperm were significantly increased in both the experiment and the control groups after 3 months of medication as compared with the baseline (P0.05), and the increases were even more significant in the former than in the latter group (P0.05). The therapeutic efficacy was remarkably better in the patients with natural infertilityor = years than in those3 years (P0.05).Compound Xuanju Capsule combined with tamoxifen citrate produces satisfactory results in the treatment of idiopathic oligozoospermia, and therefore can be used as a first-line therapy for this disease.

Pilot-scale experiment was conducted on composting of sewage sludge from urban wastewater by recycling matured compost as a bulking agent. At the given ratio of sludge to matured compost = 1:2(v/v), and aeration rate 0.05m3/(m3·min), final product was gained and analyzed by measurement of nutrient (nitrogen, phosphorus, and Potassium), heavy metals, and polyacrylamide (PAM). As the experiment shown, PAM, as a kind of hazardous material in sludge, was degraded by 80.6% during composting, and only 1.17mg/g remained in the final product. Different kinds of heavy metals were concentrated after composting, and the total content of heavy metals increased by 42%~49%. Plenty of nutrients (N, P, and K) remained in the final product after composting, which was in favor of the application of final compost to plants growth.

The molecule of the title compound, C26H28O5, is chiral with five stereogenic centres; however, the centrosymmetric triclinic group gives a racemic crystal. The fused ring system adopta boat conformation in which the cyclopropane ring plane is roughly perpendicular to the styryl group plane, forming a dihedral angle of 74.78 (19)°. The dihedral angle between the two benzene rings is 77.24 (6)°.

To investigate the effect of Jinleng undershorts on the elevated scrotal temperature induced by varicocele as well as on other clinical symptoms of the disease.Fifty-one varicocele patients received the treatment of wearing Jinleng undershorts for 30 min twice a day for a course of 90 days. Comparisons were made between the scrotal temperatures and other clinical symptoms of varicocele before and after the treatment.After 90 days of treatment with Jinleng undershorts, the left scrotal temperature of the varicocele patients was significantly reduced from (32.16 +/- 0.79) degrees C to (31.53 +/- 0.77) degrees C (P0.01), and the right scrotal temperature decreased from (31.91 +/- 0.73) degrees C to (31.81 +/- 0.63) degrees C (P0.05). Compared with pretreatment, significant improvement was found in such symptoms as wetness, fever and swelling of the scrotum, backache, headache, dizziness, fatigue and anxiety (P0.05), as well as in testicular pain (P0.01) and IIEF-5 score, which was increased from 15.89 +/- 6.13 to 20.04 +/- 3.87 (P0.01).Jinleng undershorts can be used for the treatment of mild and moderate varicocele.

Using the new observations of several neutron-capture elements in metal-poor star HD 126238, combining a computer model and the method of least square, we accurately compute the component coefficients C1, C2, and C3. The results are C1 = 2.52, C2 = 0.26, C3 = 0.31. Then employing the values of the component coefficients, we determine the relative contributions of the r-process and the s-process to the abundances of neutron-capture elements in the HD 126238, and predict the abundances of all the neutron-capture elements in this metal-poor star. The predictions agree well with the observations.