These results show that the autologous tissue grown within the recipients' peritoneal cavity can be used successfully for tubularized urethral reconstruction in male rabbits.

Rationale:Diffuse giant cell tumors of the tendon sheath (GCT-TS) in the temporomandibular joint (TMJ) are extremely rare.Patient concerns:We reported the imaging appearance and the pathological findings of 2 male cases with diffuse GCT-TS in the TMJ (52 years for the case 1 and 50 years for the case 2) who complain of the hearing disorders of left ear when presenting to our hospital.Diagnosis:Preoperative computerized tomography (CT) scan revealed an irregular mass in the left temporal fossa with the sizes of approximately 5.8 × 3.8 × 4.6 cm for case 1 and 4.2 × 3.2 × 4.3 cm for case 2, respectively. Magnetic resonance imaging (MRI) findings showed a mass of 6.1 × 4.0 × 5.1 cm and 5.3 × 3.6 × 3.3 cm, respectively. Postoperative pathological examination revealed the diffuse multinucleated giant cells accompanied with synovial cells in the diffuse arrangement. Immunohistochemical examination showed CD68 (+), Vim (+), S-100 (-) and 2% of Ki-67 proliferation index. These characteristics are in line with the diagnosis of the diffuse GCT-TS in the TMJ.Interventions:Both cases underwent the gross total resection followed by radiation therapy.Outcomes:Two patients experienced no recurrence after follow-up of 1 to 2 year(s).Lessons:Diffuse GCT-TS in the TMJ is very rare. Clinicians should keep in mind the possibility of the GCT-TS when aggressive lesions involve the TMJ and adjacent bone destruction was found. Careful pre- and postoperative examinations and complete resection are the factors that lead to its optimal treatment, significantly reducing its recurrence rate.

A new idea to influence the sound insulation property of multi-layered woven fabric by the embedded tufting yarns is presented in this paper. The effect of layer number, layer orientation, tufting density and tufting pattern is investigated respectively, in the basis of sound transmission loss (STL) analysis measured by an impedance tube. The experimental results show that the sound insulation can be enhanced by increasing the number of layers or maintaining the same lay-up orientations. Moreover, the effect of tufting yarns on sound insulation is more sensitive in the low-middle frequency range and relatively more complicated. The obtained results can be applied in the part design, the preform engineering, and the positioning of tufting process.

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With the integration of information science into the fashion field, both industry and university expect more informatics technology to be utilized in the fashion-related course and teaching of practical exercises. Among this informatics technology, virtual simulation, as an important experiment tool, has become very popular support for fashion students since it is possible to validate design ideas very efficiently and fast. However, because virtual simulation is quite technical, and it is very difficult to gain all the essential skills about the operation of the virtual simulation software within a short time, in the process of virtual simulation exercises, students largely rely on the guidance of teachers, which leads to the negative impact on students’ learning motivation. To optimize the application of virtual simulation in the fashion-related course and teaching of practical exercises, this paper proposes a teaching method based on collaborative learning for fashion virtual simulation exercise teaching. 3D virtual fitting exercises realized by virtual simulation were adopted as the research object to verify its effectiveness. Two groups of students were involved in the experiments. One group was taught traditionally while another group was taught by the proposed collaborative learning. Through a set of learning and teaching process evaluation, experiment results demonstrated that collaborative learning will be beneficial to improving students’ learning interest, efficiency, quality and facilitate the comprehensive capacity of autonomous learning, communication and cooperation, reduce the individual distinction and enhance self-confidence. This paper provides support for the future application of collaborative learning in other fashion related virtual simulation courses and exercises.

The dedusting system is the parameter selection and the degree of cooperation between several dust collector components. The stability of the system plays a decisive role in the dust removal efficiency of the whole system. The existing dust removal system model is a mechanism model, and the bag size, filter bag distribution and other parameters are optimized by simulation results. It cannot provide a model reference for the use of a new filter bag. In this research, the generalized model of the dust removal system is established by MATLAB. The factors affecting the service life of filter bag and dust removal efficiency of dust removal system are analysed. A differential equation is used to describe the influence of these factors. The dynamic model of the dust removal system is established. When considering the problem of flue gas emission, the algebraic equation with dust is constructed. The model of the bag-type dust removal system is described by a generalized system. Finally, the model’s stability is analysed using the method of generalized system analysis, and the necessary and sufficient conditions for the stability of the model are obtained. Given the advantages of a seamless filter bag in filtration efficiency and mechanical properties, the stability of the system is studied. The results show that the system stability increases by 55.4% and 41.9% respectively. The performance of the filter bag is introduced into the modelling of the dust removal system, which plays a key role in the overall evaluation of the filter bag.

With the promotion of education informatization in colleges and universities, virtual simulation technology is increasingly used in experimental teaching. In the teaching of fashion-related majors, virtual simulation technology can help students quickly and efficiently understand design theories, which are difficult for them to understand. However, due to the complexity of the virtual simulation experiment, it is difficult for students to master all the techniques required for the operation of the experimental system in a short time. In traditional teaching, students passively accept knowledge taught by the teacher and follow the teacher's operation, thereby affecting the learning effect. Such teaching and learning process cannot fully functionalize students' sensory system coding, and therefore cannot form long-term memory. To optimize the application of virtual simulation technology in the teaching of fashion-related majors, this paper proposes a clothing virtual simulation experimental teaching method based on Gagné information processing theory. To verify its effectiveness, anthropometry and virtual clothing design experiment was adopted as the research object. Two groups of students were involved in the experiments. One group was taught traditionally while another group was taught by the Gagné information processing mode. Through a set of learning and teaching process evaluation, experiment results demonstrated that Gagné information processing mode can effectively help students to fine-process the knowledge they have learned, so that important information can be extracted and encoded to form long-term memory. This paper provides support for future Gagné information processing theory in the teaching of virtual simulation courses and exercises.