关键词： Multi-family therapy   Psychiatric rehabilitation   Schizophrenia  

摘要： Schizophrenia is a severe chronic disabling disease. Medication alone is often insufficient to effectively reduce the high recurrence rate or mitigate the significant functional impairment. Multiple family therapy (MFT) has been shown to lower recurrence rate and improve patients' social functioning. This article provides a brief review and discussion of research on the role of MFT in schizophrenia treatment, aiming to offer more evidence-based support for patient rehabilitation. © 2025 Chinese Medical Journals Publishing House ***. All rights reserved.

关键词： Piezoelectricity  

摘要： In recent years, polyvinylidene fluoride (PVDF)-based nanofiber membranes, as key materials for applications in sensors, energy harvesters, and flexible electronics, have received significant attention due to their excellent piezoelectric properties. However, the research on the piezoelectric performance of PVDF membranes is still limited because of their intrinsic structure and material characteristics. Therefore, in this work, the effects of filler doping on the properties of PVDF nanofiber membranes are investigated to enhance their piezoelectric performance and stability. Using electrospinning technology, electret particles are incorporated into PVDF nanofiber membranes at different concentrations (e.g. 1%, 1.5%, and 2%). Characterization tests of the composite nanofiber membranes, such as scanning electron microscopy (SEM) and X-ray diffraction (XRD), reveal that the doping of electret particles can increase the average fiber diameter and enhance the β-phase content. In the piezoelectric performance tests, the piezoelectric sensors made of nanofiber membranes doped with electric particles show significant improvement in electrical output at a test pressure of 20 N. Furthermore, increasing the membrane area and using higher pressure can further enhance the electrical output. These results show that the piezoelectric properties of PVDF membranes can be effectively improved by appropriately doping electric particles. Stability tests carried out three months after sensor was fabricated shows that the electrical output stability of the piezoelectric sensors containing electric particles has been significantly improved. Additionally, an efficient signal processing method is proposed, with an FIR digital low-pass filter used to remove high-frequency noise. This method is not only a smoothing prior method to eliminate baseline drift, but also an improved AMPD algorithm to accurately detect the peak position and features of the piezoelectric signal. This method can sign

关键词： 公路工程   隧道施工   施工技术   质量管控  

摘要： 公路隧道施工环境复杂,涉及多个工程,需要保证施工技术的先进性,加强施工过程质量把控,满足公路隧道工程建设要求.基于此,围绕公路隧道施工展开研究,首先分析公路隧道施工的特点,其次探讨公路隧道施工技术,最后提出优化隧道施工工艺、加强施工过程质量把控、做好现场质量监测等公路隧道施工质量控制的相关建议,旨在规范公路隧道施工流程,提高施工技术水平,促进公路隧道工程按时保质地建成,以供参考.

关键词： iron removal   crystal growth   homogeneous and heterogeneous nucleation   goethite process   zinc hydrometallurgy  

摘要： The goethite residue generated from zinc hydrometallurgy is classified as hazardous solid waste, produced in large quantities, and results in significant zinc loss. The study was conducted on removing iron from FeSO4-ZnSO4 solution, employing seed-induced nucleation methods. Analysis of the iron removal rate, residue structure, morphology, and elemental composition involved ICP, XRD, FT-IR, and SEM. The existing state of zinc was investigated by combining step-by-step dissolution using hydrochloric acid. Concurrently, iron removal tests were extended to industrial solutions to assess the influence of seeds and solution pH on zinc loss and residue yield. The results revealed that seed addition increased the iron removal rate by 3%, elevated the residual iron content by 6.39%, and mitigated zinc loss by 29.55% in the simulated solution. Seed-induced nucleation prevented excessive nuclei formation, fostering crystal stable growth and high crystallinity. In addition, the zinc content of surface adsorption and crystal internal embedding in the residue was determined, and the zinc distribution on the surface was dense. In contrast, the total amount of zinc within the crystal was higher. The test results in the industrial solution demonstrated that the introduction of seeds expanded the pH range for goethite formation and growth, and the zinc loss per ton of iron removed was reduced by 50.91 kg (34.12%) and the iron residue reduced by 0.17 t (8.72%).