Adaptive control of an electromagnetically actuated presser-foot for industrial sewing machines

This study describes some possibilities of setting up an adaptive control method for an electromagnetically actuated presser-foot in an industrial high-speed sewing machine. The control of fabrics feeding in sewing machines is difficult not only because of the complexity of relations between the intervening variables (material properties, sewing speed), but also because in many operations a varying number of material plies are crossed. This implies that the reference for the controller has to be adapted dynamically. Several methods, using PID and/or fuzzy logic control, have been tried and are described in this paper. A preliminary sewing test is able to provide data to tune the controller variables. With these adaptation techniques, the machine would be able to automatically adapt its feeding system according to the material being sewn.Fundação para a Ciência e a Tecnologia (FCT

Industrialització del procés de confecció de cortines

In this Final Degree Thesis the industrialisation of a small family business, Sactelyer, has been put into practice. With the aim of industrialising the manufacturing process of making curtains. Previously, the company's current manufacturing process is analysed to find the shortcomings and waste it has. And it makes known the production capacity, the annual turnover, the manual tools and artisanal methods it has. Subsequently, the choice of equipment renewal and Lean Management as methodologies for improving the company's competitiveness is justified and an analysis of the techniques and general components thereof is carried out. Once the different methodologies are explained, a study of the current textile market in Spain is carried out, to see which trend is following and if it is the ideal time to invest in this sector. Next, a study of the type of industrial machinery that will be implemented within the manufacturing process is developed in order to increase production capacity tenfold, without the need to hire any additional workers or to train employees. Finally, three new industrial machines have been selected for production in Sactelyer. The specifications of each of the machines and the effect they have on the speed of production have been studied. A 3D model has been created to visualise the layout of the machines in space. Once the new machines are implemented, the production speed is estimated and the results have shown an increase of 88.3% in relation to the previous state. This increase in production speed will lead to a higher net profit for Sactelyer, compared to the profit under the traditional manufacturing process

Statement of Quartermaster Intelligence Interest

According to the forward, the “Statement of Intelligence Interest reflects the over-all interest of the Office of the Quartermaster General in intelligence data and is intended as an aid to persons engaged in the collection, processing, and dissemination of Intelligence. “ In 1960, the Quartermaster Corps was one of the technical services of the Department of the Army. The Army technical services were bureaus providing the Army with supplies, equipment, training, and services. Each was headed by a chief. The Quartermaster General was the chief of the Quartermaster Corps. The Quartermaster Corps was responsible for the procurement, storage, and distribution of food, clothing, fuel, and other materials of a nonmilitary nature, and for conduction research in the fields of food and nonmilitary supplies; also the burial of deceased military personnel, the maintenance of national cemeteries in the United States and abroad and the repatriation of deceased military personnel. Each technical service was responsible for intelligence pertaining to the principles of design and operation, nomenclature, physical characteristics, performance, operational capabilities and limitations of foreign material and facilities used by or for the support of military forces. In a broad sense, technical intelligence may also embrace the manufacture, storage, installation, maintenance, and operating aspects of foreign materiel and facilities, including the effects of weather, terrain, other environmental factors, and military action thereon, as well as the nature, organization, and activities of foreign agencies having the functions analogous to those of the technical service in the United States Army. This is a detailed listing of subjects of interest to the Quartermaster Corps, including: Information about organizations that perform missions similar to the US Quartermaster Corps in foreign armies. Information about equipment and rations used by foreign forces. Information about quartermaster industries, foreign trade, and agriculture in foreign countries. Information about storage facilities and practices for food, fuel, and supplies in foreign countries. Information about the physical geography of foreign countries that might affect quartermaster activities in US forces in the field. Information about sociological factors which might affect quartermaster activities in US forces in the field. Information about transportation facilities of various types for the full range of quartermaster supplies and equipment in foreign countries. Information about quartermaster-related research in foreign countries. Note that the interests in transportation facilities overlaps with the interests of two of the other technical services, the Corps of Engineers and the Transportation Corps

Statement of Quartermaster Intelligence Interest

According to the forward, the “Statement of Intelligence Interest reflects the over-all interest of the Office of the Quartermaster General in intelligence data and is intended as an aid to persons engaged in the collection, processing, and dissemination of Intelligence. “ In 1960, the Quartermaster Corps was one of the technical services of the Department of the Army. The Army technical services were bureaus providing the Army with supplies, equipment, training, and services. Each was headed by a chief. The Quartermaster General was the chief of the Quartermaster Corps. The Quartermaster Corps was responsible for the procurement, storage, and distribution of food, clothing, fuel, and other materials of a nonmilitary nature, and for conduction research in the fields of food and nonmilitary supplies; also the burial of deceased military personnel, the maintenance of national cemeteries in the United States and abroad and the repatriation of deceased military personnel. Each technical service was responsible for intelligence pertaining to the principles of design and operation, nomenclature, physical characteristics, performance, operational capabilities and limitations of foreign material and facilities used by or for the support of military forces. In a broad sense, technical intelligence may also embrace the manufacture, storage, installation, maintenance, and operating aspects of foreign materiel and facilities, including the effects of weather, terrain, other environmental factors, and military action thereon, as well as the nature, organization, and activities of foreign agencies having the functions analogous to those of the technical service in the United States Army. This is a detailed listing of subjects of interest to the Quartermaster Corps, including: Information about organizations that perform missions similar to the US Quartermaster Corps in foreign armies. Information about equipment and rations used by foreign forces. Information about quartermaster industries, foreign trade, and agriculture in foreign countries. Information about storage facilities and practices for food, fuel, and supplies in foreign countries. Information about the physical geography of foreign countries that might affect quartermaster activities in US forces in the field. Information about sociological factors which might affect quartermaster activities in US forces in the field. Information about transportation facilities of various types for the full range of quartermaster supplies and equipment in foreign countries. Information about quartermaster-related research in foreign countries. Note that the interests in transportation facilities overlaps with the interests of two of the other technical services, the Corps of Engineers and the Transportation Corps

Introductory background for Life Cycle Assessment (LCA) of pure silk fabric

The main goal of this study is to provide an introductory background to development of the Life Cycle Assessment studies of pure silk fabric. There are not studies available on the life cycle of pure silk fabric. In this sense, was developed a scenario model for LCA application, following the methodology established by the Standard BNR ISO 14040:2009, which establishes principles and framework for an LCA study. It was considered one of the first steps in ISO, being the definition of the purpose and scope. The limits considered for the system had as a starting point the wiring step within the company, and as a final limit the stage of the finishing of the fabric, where you get the finished product. The information used in this study was collected directly from the company entitled 'Fio de Seda', a Brazilian industry. In order to construct the scenario proposed, was used the software Umberto® 5.6 v. Acad and through it, it was possible to generate the scenario model for the production of the silk fabric. Based on this scenario, the accomplishment of the later stages is possible, as outlined in ISO 14040, thus obtaining the inventory of the LCA for the pure silk fabric, as well as its life cycle inventory assessment

Bonneville International v. Utah State Tax Commission : Addenda

ADDENDUM TO BRIEF OF PETITIONER Petition for Review of the Final Order of the Utah State Tax Commissio

Underpinning The STEM Agenda Through Technological Textiles? An exploration of design technology teachers’ attitudes.

This paper discusses ongoing research into the role of design and technology education in emerging post industrial economies. Previous work (Hughes et al., 2010) focused on the changing characteristics of textiles technology in modern times and discussed how this could inform a design and technology curriculum related to the needs of a modern textile technology workforce. This current paper reports on the second stage of the grounded theory programme in which theoretically sampled data from the first phase provides the direction and purpose for the work presented here. Within this context, this research explores practising teachers’ perceptions of textile technology associated with the emergent STEM agenda. Data gathered supports the view that technological aspects of design and technology closely linked to the STEM agenda are needed to provide a firm foundation for the design aspects of the subject. Without a STEM focus, the subject may lose its hard won importance in the UK schools and colleges’ curriculum. This is especially the case in an economic climate in which curriculum design stakeholders may be forced to review the content of the national curriculum across all key stages as a whole