Weaving process efficiency is determined by factors that take into account the technical condition of the weaving machine, the quality of the used yarns, the workers’ qualification and the climatic conditions. The breakage number of warp and weft yarns for every one metre of woven fabric or during unit time exerts a significant influence on a weaving machine's efficiency. Forecasting breakage number can be determined using different methods. Some of these methods are applied after assembling the article on the weaving machine, while others are applied before that stage.. The forecast of yarn behaviour on the weaving process can be expressed using calculated indexes considering specific elements of yarn stress distribution and breaking strength. The values of these indexes allow one to forecast warp and weft weaving processability and make better decisions in refusing yarnsthat cannot guaranty suitable efficiency.

The plantar pressure distribution has a complex influence on the kinetics and kinematics of the lower limbs. The foot bed-outsole ensemble must provide the correct support of the foot and add corrections if necessary, in order to adjust the pressure distribution on the foot plantar surface. A poorly designed outsole, a feeble midsole or the incorrect care and use of the footwear product will lead to the deterioration of the foot bed functionality. The degree of the foot bed deterioration can be determined using in-shoe plantar pressure measuring devices. This loss of functionality must be prevented as much as possible in the design stage. Footwear prototyping and wearing tests are very expensive and time consuming and do not represent a viable method in economic terms. The fastest and less expensive testing method suitable for footwear production in design stages is the Finite Element Analysis. To use this method we developed a 3D CAD model of the human foot using as model a real 3D scanned foot. The scanned foot was processed in various 3D CAD systems in order to obtain a FEA usable 3D part. The developed model was used to determine how the ensemble of a specific sole design and a midsole with wear characteristics modify the plantar pressure distribution.

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Over the last decade, modeling of heat and mass transfer through textile materials has become a constant concern of researchers and has been directly influenced by the development of computing systems. The importance of heat and moisture transfer properties of clothing is in particular crucial in high-risk professions like firefighting or sportswear. While some analytical and numerical models have been developed about these materials, the most approaches are at the macroscopic level, where microscopic details are filtered out to reduce numerical and physical complexity. When unsteady transfer occurs the results can have significant errors. On the other hand, the simulation is a cheaper method to obtain the static or dynamic characteristics of porous materials. The goal of this paper is to model a simple textile structure and to perform a water vapour diffusion simulation using the Comsol Multiphysics(R). Comsol(R) is a software environment that allows the simulation of physical phenomena using the geometric models. The appropriate module for water vapour transfer is the Transport of Diluted Species. By applying the standard boundary conditions a comparison between the simulated and experimental value can be made. In order to have a significant results for entire system the dimension of sample was chosen so that it becomes a Representative Elementary Volume. Starting from the properties of the yarns and a geometric model of the textile structure, by simulation were acquired the global characteristics of the material such as: evaporation resistance, porosity, diffusion coefficient, diffusion flux, tortuosity and relative times for which the transfer becomes stationary. Global values were obtained by volumetric average methode, using predefined functions in Comsol(R).

The software proposed in this paper presents an educational teaching method of the woven fabrics with simple structure. The program is modular designed with increasing difficulty while the complexity of the approached subject increases. The program respects the principles of the educational methology and the information is presented gradual so that good knowledge assimilation is possible. It is based on the teaching method used by the professors from this branch and follows the steps of the learning process.. The software is useful to all who attend "The structure of woven fabrics" subject, both in high schools and universities. Each modul is repesentatif for the educational program levels (high schools or universities) The successive modules are designed taking into account the classification of the weave for the simple woven fabrics. When designing the program three main directions have been followed: - establishment of the educational methodology (the teaching and testing methods); - analysis and systematization of the structural and appearance characteristics that define the woven fabrics for fundamental weaves, derivative weaves and combined weaves; - establishment of the elements that will be used in testing the knowledge and also the testing steps. From the educational point of view are respected the specific steps of learning and testing the knowledge. So, the program can be used in LEARNING and respectively TESTING variant. The user have to choose one of these options at the beginning of the work session. The applicant has to introduce himself the needed structure characteristics for a certain weave. The program allows the individual study and individual estimate of knowledge.