El presente trabajo surge debido a que la empresa en estudio de producción de calzados, desea cubrir la demanda insatisfecha que ha venido presentando, la cual se ha visto altamente beneficiada por el aumento de pedidos en los últimos años. Debido a ello, la presente investigación propone la implementación de una alternativa de distribución de planta en la empresa aplicando la metodología de la Planificación Sistemática de la Distribución (SLP) con lo que se logra la reducción de las distancias recorridas para incrementar la capacidad productiva y disminuir los tiempos de traslados entre estaciones, además de proponer el uso la herramienta 5’S, la cual permite crear una cultura de orden y limpieza en la organización obteniendo la reducción de tiempos muertos por la saturación de espacios debido a desórdenes y búsqueda de materiales. La propuesta mencionada en el presente trabajo empieza explicando los conceptos y metodologías que son necesarias para realizar el análisis, luego describe la situación actual de la empresa a nivel de sus procesos, productos y principales causas que originan la entrega tardía de pedidos. Posteriormente, se realizará el análisis y evaluación de las alternativas para la selección de la mejor propuesta de distribución de planta para la empresa evaluando términos cualitativos y cuantitativos. A sí mismo, se implementan un manual para la aplicación de los principios 5S en las áreas más críticas. Luego, se realizará la evaluación económica de la alternativa escogida y el plan de implementación. Finalmente, se validará la información para obtener los beneficios. / The manufacturing specifications used by small leather and footwear businesses are neither up to date nor based on innovative production and new technologies. Consequently, their production times are higher, rendering them unable to sufficiently compete against other developed countries. Thus, this study seeks an innovative way to reduce times that do not add value to the product, such as reducing travel distances between stations, and proposes improving procedures for a better monitoring of the resources required. As a whole, this proposal focuses on designing a model to minimize the displacement of different processes. This practice is currently being implemented in the manufacturing sector, but not in the footwear sector. The proposal provides broad results, saving around 33% in transfer times and 85% in distance traveled in footwear production. / Trabajo de Suficiencia Profesional

The diploma thesis deals with formulating a realistic business plan for setting up online shop with indoor sport footware. This business plan proposal is based on detailed analysis of the market and own resources. The aim of this thesis is to assess the feasibility of the business plan and to reveal its week points and risks.

El presente trabajo es un proyecto de negocio, el cual consiste en vender calzados con tacones removibles, los cuales van a contener una plataforma para que las mujeres puedan mantenerse cómodas durante todo el día. Nuestro proyecto lleva por nombre Shoe Le Confort, el cual está dirigido a mujeres entre 18 a 39 años, las cuáles buscan verse mucho más altas y estilizadas. Este calzado, les ayudará a combinar sus diferentes outfits, ya que al adquirir nuestro producto podrán tener dos tipos de diseños diferentes de tacones de manera rápida. Asimismo, con la compra de un calzado Shoe Le Confort las clientas se llevarán de manera adicional un par de tacones, ya sea delgado o gruesos. Asimismo, la presentación de nuestro producto será en bolsas de tela tanto para los zapatos como para los tacones, ya que en nuestras entrevistas nos mencionaron que el empaque mediante cajas hace que ocupe demasiado espacio en sus habitaciones. Con el proyecto esperamos dar a conocer al mercado peruano una buena alternativa de calzado femenino, ya que actualmente en nuestro país no existe ningún modelo de negocio parecido al nuestro. / In this document we present our business project, which consists of selling shoes with removable heels, these have a platform so that women can stay comfortable throughout the day. Our project is called Shoe Le Confort, which is focused aimed at women between 18 and 39, who seek to look much taller and more stylized. This shoe will help you combine your different outfits, because when you buy our product you can have two different types of heel designs. Likewise, with the purchase of a Shoe Le Comfort footwear, clients will additionally wear a pair of heels, either thin or thick. Also, the presentation of our product will be in cloth bags for both shoes and heels, since in our interviews they mentioned that the packaging by boxes makes it take up too much space in their rooms. With the project, we hope to make the Peruvian market a good alternative for women's footwear, since currently there is no business model like ours in Perú. / Trabajo de investigación

Footwear and tire impressions are critical evidence commonly found at a crime scene. However, they are often undervalued because they are hard to be captured and documented. Traditional 2D evidence quality photographs do not adequately provide metric depth information, and physical casts destroy the evidence afterward. Therefore, the forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and lab use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high-quality footwear and tire impressions evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera-pixel spatial resolution. This paper presents a high-resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high-quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high-end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high-end commercially available 3D scanner, while having the merits of being 1) more affordable; 2) much easier to operate, and 3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it 1) is non-destructive; 2) collects more evidence detail than casts, especially when an impression is fragile; 3) requires less time and money to collect each piece of evidence, and 4) results in a digital file that can easily be shared with other examiners.<br>

Gait analysis allows clinicians and researchers to quantitatively characterize the kinematics and kinetics of human movement. Devices that quantify gait can be either portable, such as instrumented shoes, or non-portable, such as motion capture systems and instrumented walkways. There is a tradeoff between these two classes of systems in terms of portability and accuracy. However, recent computer advances allow for the collection of meaningful data outside of the clinical setting. In this work, we present the DeepSole system combined with the different neural network models. This system is a fully capable to characterize the gait of the individuals and provide vibratory feedback to the wearer. Thanks to the flexible construction and its wireless capabilities, it can be comfortably worn by wide arrange of people, both able-bodied and people with pathologies that affect their gait. It can be used for characterization, training, and as an abstract sensor to measure human gait in real-time. Three neural network models were designed and implemented to map the sensors embedded in the DeepSole system to gait characteristics and events. The first one is a recurrent neural network that classifies the gait into the correct gait phase of the wearer. This model was validated with data from healthy young adults and children with Cerebral Palsy. Furthermore, this model was implemented in real-time to provide vibratory feedback to healthy young adults to create temporal asymmetry on the dominant side during regular walking. During the experiment, the subjects who walked had an increased stance time on both sides, but the dominant side was affected more. The second model is encoder-decoder recurrent neural network that maps the sensors into current gait cycle percentage. This model is useful to provide continuous feedback that is synchronized to the gait. This model was implemented in real-time to provide vibratory feedback to six muscle groups used during regular walking. The effects of the vibration were analyzed. It was found that depending on the feedback, the subjects changed their spatial and temporal gait parameters. The third model uses all the sensors in the instrumented footwear to identify a motor phenomenon called freezing of gait in patients with Parkinson’s Disease. This phenomenon is characterized by transient periods, usually lasting for several seconds, in which attempted ambulation is halted. The model has better performance than the state-of-the-art and does not require any pre-processing. The DeepSole system when used in conjunction with the presented models is able to characterize and provide feedback in a wide range of scenarios. The system is portable, comfortable, and can accommodate a wide range of populations who can benefit from this wearable technology.

Problem: Running is one of the most widespread physical activities. Incorrect running technique, training quantity but also the runner's equipment can strongly affect health condition of the individual, both positively and negatively. For that reason various trends emerge in the area of running footwear. They include classical sports shoes with different types of impact attenuation as well as the minimalist footwear made to imitate barefoot running, which should be much more natural for humans, as insisted by B. Nigg in his book "Born to Run" - where he says that man was born to walk and run barefooted. Inappropriate shoes can cause various health complications, not only in the foot area. Objective: To find out how foot strike changes in the area of the foot-shoe interaction in running on flat ground when an amateur runner uses minimalist and sports footwear and to draw conclusions for training practice on the basis of the results. Methods: The thesis deals with amateur endurance running in different shoe types (minimalist and sports shoes). The study specimen consisted of 14 female runners (mean body weight 63,31 ± 4,89 kg, height 169,69 ± 4,71 cm, age 31,92 ± 5,34 years, speed in minimalist shoes (MO) 3,34 ± 0,06 m.s- 1 , speed in sports shoes (SO) 3,29 ± 0,06 m.s-1 , weekly mileage 37,54 ± 9,43...

No description available.

Background: In recent years, sudden improvements in long-distance running performance have been suggested to be due to the latest technological innovations in running footwear. However, inter-individual differences appear to be large in the performance enhancing effect these shoes elicit where some runners experience a decline in performance while others improve substantially. The reason for this is not yet fully understood but may be due to differences in anthropometric and neuromuscular characteristics between runners. Aim: The aim of this thesis was to investigate the association between individual anthropometrical and neuromuscular characteristics of runners with changes in running mechanics while wearing these new generation shoes. Method: Eight male endurance runners performed four different testing protocols during one single visit. These consisted of an anthropometrical protocol where measurements of height, weight, leg length and Achilles tendon moment arm length were determined; a jumping protocol where vertical stiffness and eccentric utilization ratio (EUR) were recorded using a force platform; a running protocol where contact time, step length, ankle propulsive power and knee absorption power were measured using a force platform and a 12-camera motion analysis system; and finally a force-velocity protocol where each participant performed calf raises and back squats with incremental loads in a smith machine while barbell velocity was simultaneously recorded. The collected data were then statistically analyzed using Wilcoxon Signed-Rank Test and Spearman’s Rank Correlation Coefficient. Results: Greater peak power in the back squat was associated with a greater reduction in peak knee absorption power (r = -0,905, p = 0,005) and less vertical stiffness during jumping was associated with longer step lengths with the advanced footwear technology (AFT) shoes (r = -0,738, p = 0,046). No associations were found between vertical stiffness during jumping and contact time, EUR with step length and contact time, peak power in the calf raise and Achilles tendon moment arm with peak ankle propulsive power. Conclusion: Runners with less vertical stiffness in the lower limb during jumping exhibited greater step length increase with AFT shoes. This may be due to the spring-like behavior the shoes possess. However, the larger step length increases the demands on lower limb strength and runners with less power in the lower limb may increase their knee absorption power during ground contact, leading to potentially less efficient running mechanics. Those with greater power in the lower limb may, on the other hand, run more efficiently by decreasing their knee absorption power leading to less muscular effort. / Bakgrund: De senaste årens förbättringar inom långdistanslöpning har föreslagits bero på de teknologiska framstegen som gjorts inom löparskokonstruktion. Det verkar emellertid finnas en skillnad i den prestationshöjande effekt som dessa skor framkallar, där vissa löpare upplever en försämring medan andra förbättras avsevärt. Orsaken till detta är fortsatt okänt men kan ha att göra med skillnader i antropometriska och neuromuskulära egenskaper mellan löpare. Syfte: Syftet med denna uppsats var att undersöka sambandet mellan individuella antropometriska och neuromuskulära egenskaper hos löpare med förändringar i löpmekanik som dessa nya generationens skor framkallar.Metod: Åtta manliga långdistanslöpare utförde fyra olika testprotokoll under ett enda besök. Dessa bestod av ett antropometriskt protokoll där längd, vikt, benlängd och momentarmslängd av Akillessenan mättes; ett hopprotokoll där vertikal styvhet och EUR registrerades med hjälp av en kraftplatta; ett löpprotokoll där kontakttid, steglängd, fotledskraft och knäledskraft mättes med hjälp av kraftplattor och ett rörelseanalyssystem med 12 kameror; och slutligen ett kraft-hastighetsprotokoll där varje deltagare utförde tåhävningar och knäböj med stigande belastning i en smith-maskin medan skivstångshastighet samtidigt registrerades. Den insamlade data analyserades därefter med Wilcoxon Signed-Rank Test och Spearman’s Rank Correlation Coefficient. Resultat: Högre peak power i benböj var associerat med en större minskning av maximal knäabsorptions power (r = -0,905, p = 0,005) och mindre vertikal styvhet under vertikalhopp var associerad med längre steglängd med AFT-skorna (r = -0,738, p = 0,046). Inget samband hittades mellan vertikal styvhet under vertikalhopp och kontakttid, EUR med steglängd och kontakttid, maximal power i tåhävningar och hälsenans momentarm med maximal propulsionspower i fotleden. Konklusion: Löpare med mindre vertikal styvhet i de nedre extremiteten under vertikalhopp uppvisade större steglängdsökning med AFT-skor. Detta kan bero på det fjäderliknande beteende skorna har. Den längre steglängden ökar dock kraven på styrkan i den nedre extremiteten och löpare med mindre kraft, har potentiell ökad knäabsorptions power under markkontakt vilket kan resultera i en mindre effektiv löpmekanik. De med bättre kraftutveckling i de nedre extremiteten kan däremot potentiellt springa mer effektivt med dessa nya generationens skor genom en minskning i knäabsorptions power vilket i sin tur leder till mindre muskulär ansträngning.

No description available.

The objective of the work was to establish strong correlations between midsole materials, biomechanics assessment and field test concerning running shoes and thus, for two crucial parameters: cushioning and ride.                A large range of mechanical testing (Shock tower, Compression, Dynamical Mechanical Analysis, Hardness) was carried out on EVA (Ethylene Vinyl Acetate) foam planks used in midsoles. Distinct sample sizes were needed according to the lab test and external machining was utilized to get appropriate specimens. Similar experiments have been led on prototypes finished shoes (Shock tower, Hardness) when it was feasible. The whole toolbox of current Salomon Footwear midsole formulations was so reviewed in detail. A phase of Biomechanics assessment of cushioning and ride was then undertaken with the help of a dozen of testers using sensors, procedures and data processing software. The field test was conducted at the same time to have the perception of the runners about several criteria once they worn the shoes in real condition.                Computational software were used to elaborate correlations matrices between determining parameters (finished shoes) and explicative ones (foams) while reducing the number of laboratory testing.  Prediction models for shoe performance anticipation were developed for the cushioning. Unfortunately, ride prediction model was not realized due to time and feasibility limitations. Shoe rebound resiliency and biomechanical parameters (Kurtosis and Power Spectral Density) proved to be strongly linked to the foam properties (Shock tower, Compression, Dynamical Mechanical Analysis). It could thus be forecast before making any shoe prototype. The reorganization of the Salomon Footwear toolbox has been started with the aim of finding one proper midsole for one proper application or runner practice. Established prediction models have been used to elaborate a cushioning index to sort the foam formulation according to their performance, density and price. Recommendations have been made for the choice of materials.