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1
artículo
This research will serve as a precedent for other studies that aim to improve the production processes of textile and apparel companies by proposing a preventive solution for excess fabric waste that results from the production process. The study will also provide insights into reducing the amount of excess fabric waste in the marking and cutting areas via the manufacture of additional clothing items and accessories. Consequently, by efficiently allocating resources to make optimal use of seasonal material, costs can be reduced, ultimately leading to improved profitability for the textile knitwear company.
2
artículo
Beef aging is a process that involves the interaction of enzymes and chemical transformations that directly influence changes in flavor and texture, which in turn can determine the sensory experience for guests. The purpose of this study was to compare, in terms of texture, the aging of beef brisket cuts through two techniques: with animal fat coating and dry aging, over a period of 21 days, and to determine the acceptability of end consumers. The cuts were stored under controlled temperature and moisture conditions (2 °C and 60 % relative moisture, respectively), with continuous monitoring to ensure food safety. Finally, they were cut into 2 cm thick steaks, fried to medium doneness with salt, and sensorially evaluated by a panel of 27 individuals. The results revealed an acceptance rate of 74.1 % for the meat sample aged with animal fat, surpassing the dry-aged sample (22.3 %) and the...
3
artículo
Beef aging is a process that involves the interaction of enzymes and chemical transformations that directly influence changes in flavor and texture, which in turn can determine the sensory experience for guests. The purpose of this study was to compare, in terms of texture, the aging of beef brisket cuts through two techniques: with animal fat coating and dry aging, over a period of 21 days, and to determine the acceptability of end consumers. The cuts were stored under controlled temperature and moisture conditions (2 °C and 60 % relative moisture, respectively), with continuous monitoring to ensure food safety. Finally, they were cut into 2 cm thick steaks, fried to medium doneness with salt, and sensorially evaluated by a panel of 27 individuals. The results revealed an acceptance rate of 74.1 % for the meat sample aged with animal fat, surpassing the dry-aged sample (22.3 %) and the...
4
tesis de grado
This research presents the design of an automatic machine for post-harvest garlic processing, integrating 3 fundamental processes: garlic stalk cutting, garlic shelling and finally garlic peeling, in order to optimize production, improve quality and reduce costs. The development of the research is confined to farmers in the regions of Peru, contemplating the optimization and automation of 3 garlic processes, in order to allow a faster processing and relieve the farmer's workload. The initial part of the design is the cutting of garlic stalks, followed by the shelling of garlic cloves and then the peeling process, the processes have a system of vacuuming of waste and residues to obtain better product quality. The design is validated through previous research and with mechanical and electronic design software, concluding a significant improvement of 9.15% and 96% in the efficiency and qual...
5
artículo
Potential risks associated with the cuttings re-injection process as an alternative method for drilling wastes disposal were identi- fied and assessed in two offshore platforms located at the southwest of the Campeche Sonda in Mexico. Risks were evaluated using the HAZOP methodology, to identifying hazards in 11 nodes. In addition, deviations in the process were analyzed, and each risk analyzed was categorized as tolerable or non-tolerable and providing some recommendations. Consequences derived from accidental spills of slurry and/or cuttings were analyzed using the mathematical model YAXUM 3D to simulate the pollu- tants dispersion in seawater in three different climatic periods. The results of the consequences analysis shows that even the concentrations in the discharge point exceeded the recommended criteria for protection of the marine life and seawater quality, the spill is rapidly...
6
artículo
Potential risks associated with the cuttings re-injection process as an alternative method for drilling wastes disposal were identi- fied and assessed in two offshore platforms located at the southwest of the Campeche Sonda in Mexico. Risks were evaluated using the HAZOP methodology, to identifying hazards in 11 nodes. In addition, deviations in the process were analyzed, and each risk analyzed was categorized as tolerable or non-tolerable and providing some recommendations. Consequences derived from accidental spills of slurry and/or cuttings were analyzed using the mathematical model YAXUM 3D to simulate the pollu- tants dispersion in seawater in three different climatic periods. The results of the consequences analysis shows that even the concentrations in the discharge point exceeded the recommended criteria for protection of the marine life and seawater quality, the spill is rapidly...
7
artículo
This work focus upon the first one, which, due to its high computational cost that causes us to obtain exact solutions, the use of a GRASP Algorithm for straight guillotine cuts, which allows to find good solutions for any instance in suitable times is thought to be used, having as the main goal to minimize the lost or waste of materials generated in the cutting process. This will allow us the enhancement of productivity and the reduction of costs making it attractive for applying it in the paper, glass, metal and wood industry sector.
8
artículo
This work focus upon the first one, which, due to its high computational cost that causes us to obtain exact solutions, the use of a GRASP Algorithm for straight guillotine cuts, which allows to find good solutions for any instance in suitable times is thought to be used, having as the main goal to minimize the lost or waste of materials generated in the cutting process. This will allow us the enhancement of productivity and the reduction of costs making it attractive for applying it in the paper, glass, metal and wood industry sector.
9
artículo
Formative research in recent decades is positioned in the professional training curricula of the various areas of knowledge. Teacher training has not been the exception. Formative research has been included as a transversal axis of the curriculum, with the purpose of developing investigative skills and promoting the development of higher-order thought processes. For this, it has been necessary to manage changes in didactics, in evaluation and above all to have a teacher trainer who has the necessary qualities to accompany the student to build knowledge autonomously and in the future be capable of transforming their reality. Therefore, formative research in teacher training should focus on: a) preparing future professionals to make innovative use of existing scientific and technological knowledge and empower them to take on the challenge of transforming the educational reality from resear...
10
artículo
Formative research in recent decades is positioned in the professional training curricula of the various areas of knowledge. Teacher training has not been the exception. Formative research has been included as a transversal axis of the curriculum, with the purpose of developing investigative skills and promoting the development of higher-order thought processes. For this, it has been necessary to manage changes in didactics, in evaluation and above all to have a teacher trainer who has the necessary qualities to accompany the student to build knowledge autonomously and in the future be capable of transforming their reality. Therefore, formative research in teacher training should focus on: a) preparing future professionals to make innovative use of existing scientific and technological knowledge and empower them to take on the challenge of transforming the educational reality from resear...
11
artículo
This article aims to problematize the exercise of Nawagaka, a performance action presented at the Encuentro Internacional de Performance “No lo Haga Usted Mismo” (NHUM) on December 1, 2022, during the day of activations in the central plaza of the municipality of Aguascalientes, Mexico. From its conceptualization and preparations, this participation was executed in several organic moments that are presented —in a report format— for the gradual and critical problematization of its context of emergence and execution, based on an explanatory scheme that argues that the intersection of modernity-capitalism-colonialism is a tautological system of existence integrated and determining our identities and territories of existence. In this context, the faculties of production of “plastic images” are identified as correlates of existence, opening an analogous bridge between social reali...
12
artículo
The present study was designed to assess the influence of tail docking and saves time on thephysicochemical characteristics of the grape pisco Italy; for this purpose, during distillationtail cuts 13, 23 and 33 degrees of alcohol (° GL), to subsequently store them for a period of0 separated; 1,5 and 3 months (guard time). Analysis: alcoholic, furfural, aldehydes, aceticacid, higher alcohols and methyl alcohol, showed a direct relationship with the tail cutting and reverse ° GL with the guard time values of 43.87 to 52.47 mg/100ml and from 43.63 to52.27 mg / 100ml respectively; the acetaldehyde content is not influenced by cutting tail;however longer keeps greater the concentration of 5,2 to 4,56 mg/100ml, the acetic acidcontent shows a direct relationship with the tail cutting and guard time values 32,80 to 20,77 mg / 100ml; opposite effect happens with methyl alcohol content and highe...
13
artículo
Objective: To analyze how mining activity has transversal impacts on the economy, including financial impacts. Method: Descriptive, correlational-causal, using historical information collected from official sources such as Central Reserve Bank of Peru (CRBP), Chilean Copper Commission (CHICOCO), Lima Stock Exchange (LSE). Results: The study shows that mining has an influence on economic growth (GDP), on tax strength, specifically through the income tax paid by mining companies, and that it stimulates and deepens the capital market through the trading of shares and the prices of these financial assets in the stock market, whose volatility depends on the behavior of the price of mining commodities. Conclusion: Mining, in spite of its environmental liabilities, has direct and transversal effects on the economy, contributing to the process of sustained growth. A result that will translate in...
14
artículo
Objective: To analyze how mining activity has transversal impacts on the economy, including financial impacts. Method: Descriptive, correlational-causal, using historical information collected from official sources such as Central Reserve Bank of Peru (CRBP), Chilean Copper Commission (CHICOCO), Lima Stock Exchange (LSE). Results: The study shows that mining has an influence on economic growth (GDP), on tax strength, specifically through the income tax paid by mining companies, and that it stimulates and deepens the capital market through the trading of shares and the prices of these financial assets in the stock market, whose volatility depends on the behavior of the price of mining commodities. Conclusion: Mining, in spite of its environmental liabilities, has direct and transversal effects on the economy, contributing to the process of sustained growth. A result that will translate in...
15
tesis de grado
The present research identifies the issue posed by the lack of a standardized and efficient process in the cutting area of a Small and Medium-sized Enterprise in the textile-fashion sector in Peru. In an effort to address this challenge, the Single Minute Exchange of Die methodology was leveraged to enhance productivity by reducing waste associated with changeover times, manifesting as bottlenecks. Additionally, support was provided through other Lean Manufacturing tools such as 5S and SPP to propose areas for improvement that reinforce the implementation of the aforementioned technique. The results demonstrated a productivity increase of 39.36% in the area, transitioning from an average capacity of handling 3.45 orders per day to achieving a daily average capacity of up to 4.81 orders.
16
tesis de grado
La presente tesis es un trabajo de investigación para el diseño de un modelo de gestión para mejorar el proceso de corte laser en la prestación de servicios en la industria metalmecánica de la Empresa Mobilia Industrial S.A.C que se dedica a la fabricación de muebles industriales. La empresa Mobilia Industrial S.A.C cuenta con un equipo CNC de última generación para su proceso de corte de sus propias piezas industriales y lograr así un ensamblaje preciso de su productos terminados, este equipo CNC corta con tecnología laser, logrando precisión y exactitud en cada uno de sus trabajos, diferenciándose y satisfaciendo a sus clientes de manera total, alcanzando reconocimiento y posición entre las empresas dedicadas al mismo rubro. Se ha logrado posicionar de manera rápida gracias al equipo CNC, una gran ventaja competitiva. Sin embargo, la empresa es consciente de que su equipo...
17
tesis de maestría
La degradación de los bosques tropicales afecta el sustento de las comunidades reduciendo la disponibilidad de recursos. Sin embargo, los factores causantes de degradación y el impacto que ésta ejerce sobre las comunidades permanecen poco entendidos. En la Amazonía Peruana, los frutos de la palmera Mauritia flexuosa son un importante recurso, no obstante, el aprovechamiento se realiza típicamente talando las palmeras en fructificación. M. flexuosa presenta individuos masculinos y femeninos, y la proporción de palmeras femeninas (PPF) en el bosque fue usado como indicador del nivel de degradación. Data colectada en 70 sitios, seis cuencas hidrográficas y 27 comunidades, mostró que la PPF varió ampliamente (0.03-0.52). El tiempo de viaje desde la comunidad hasta el principal mercado regional (r2=0.19, p <0.001) y la técnica de cosecha (r2=0.17, p <0.001) están más relacionada...
18
tesis de grado
La fabricación de botones para prendas de vestir a partir de las semillas de tagua en el Perú ha sido una actividad poco difundida en los últimos años. Esto conlleva a que la producción por parte de los artesanos y pequeños productores sea baja, ya que no cuentan con maquinaria autónoma que realice múltiples procesos. Además, el costo de estas máquinas autónomas es alta y transportarlo es dificultoso por su peso y tamaño, los artesanos optan por máquinas pequeñas que realizan un proceso en cada ciclo de producción. Los demás procesos se realizan de manera manual apoyándose de herramientas rudimentarias, lo cual es ineficiente. Por ello, en este proyecto se desarrolla un sistema mecatrónico autónomo y modular enfocado en los procesos de selección, agujereado y corte de las tajadas de semillas de tagua para fabricar botones semi acabados para prendas de vestir. Además,...
19
tesis de grado
Esta tesis investiga el cálculo de reservas de mineral para optimizar la envolvente económica del proyecto Jirca, ubicado en la Unidad Minera Yauliyacu, Empresa Minera Los Quenuales S.A (Glencore). El cálculo de reservas será ineficiente si no se tiene en cuenta un correcto cálculo de la sobrerotura del macizo rocoso y previa identificación geomecanica de la roca encajonante. Por ende, las leyes diluidas que se obtengan en la envolvente económica y el cut-off para minar el depósito de mineral serán sobrestimadas. Bajando el valor del mineral al momento de extraer el mineral roto. En esta investigación se optimizará la envolvente económica, teniendo en cuenta valores geomecanicos del macizo rocoso a través de ensayos laboratorio, calculando así una sobre rotura estimada precisa del yacimiento por niveles de explotación, de esta manera las leyes diluidas y el cut-off de mina...
20
artículo
Paprika’s export requires optimization in terms of drying, to be competitive. The research achieved the construction of a commercial dryer 25 0kg and 1000 kg industrial, after experiencing different conditions without exceeding temperatures that can damage the labile elements, We can provide information on the importance of automation in the process of drying paprika export in Arequipa region through the accumulation of solar energy in solar collectors industrial dryers paprika. The determining parameters of the process are speed, temperature and relative humidity, moisture product also sun light, while commissioning of centrifugal fans, down time for centrifugal fans proper control and optimization in the drying process. The results were cut losses capsinas carotenoids and 10% and reduce the cost of drying 0.9 kg of dried soles pepper exportersincreasing income.