Tópicos Sugeridos dentro de su búsqueda.
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Perú
13
https://purl.org/pe-repo/ocde/ford#2.11.01
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https://purl.org/pe-repo/ocde/ford#2.11.04
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https://purl.org/pe-repo/ocde/ford#3.03.04
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Evaluación
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ODS 3: Salud y bienestar. Garantizar una vida sana y promover el bienestar de todos a todas las edades
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https://purl.org/pe-repo/ocde/ford#2.01.01
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masa process » a process (Expander búsqueda), care process (Expander búsqueda), idea process (Expander búsqueda)
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masa process » a process (Expander búsqueda), care process (Expander búsqueda), idea process (Expander búsqueda)
para masa » para casa (Expander búsqueda), para mesa (Expander búsqueda), para mala (Expander búsqueda)
1
artículo
Publicado 2022
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The Soxhlet method in extracting plasticizers from PVC compounds presents various areas for improvement, such as the amount of solvent used, the time required in the process, and its costs. This study proposes replacing the Soxhlet method with the ultrasound-assisted method to reduce the time, costs, and amount of solvent used in plasticizer extraction. It also proposes using solvent recovered from previous extractions to reduce costs further. The study involved experimentation with three different grades of PVC compounds (medical, cable, and profile) to compare the recovery of plasticizers by the Soxhlet and the ultrasound-assisted methods. The plasticizers obtained were analyzed using gas chromatography, gas chromatography coupled with mass spectroscopy, and Fourier-transform infrared spectroscopy to evaluate the results of each extraction method as compared to reference co...
2
artículo
Publicado 2022
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The Soxhlet method in extracting plasticizers from PVC compounds presents various areas for improvement, such as the amount of solvent used, the time required in the process, and its costs. This study proposes replacing the Soxhlet method with the ultrasound-assisted method to reduce the time, costs, and amount of solvent used in plasticizer extraction. It also proposes using solvent recovered from previous extractions to reduce costs further. The study involved experimentation with three different grades of PVC compounds (medical, cable, and profile) to compare the recovery of plasticizers by the Soxhlet and the ultrasound-assisted methods. The plasticizers obtained were analyzed using gas chromatography, gas chromatography coupled with mass spectroscopy, and Fourier-transform infrared spectroscopy to evaluate the results of each extraction method as compared to reference co...
3
tesis de grado
Publicado 2021
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El proceso de producción es uno de los más importantes, si no el más importante, para una organización. Para el rubro de alimentos y restaurantes, una producción eficiente y que se adapte a las diversas fluctuaciones de la demanda determinará su éxito económico como posicionamiento en el mercado. En este contexto, las áreas de Operaciones y de Marketing juegan un rol importante para el desarrollo de la rentabilidad anhelada por la compañía. Numerosos casos de estudio e investigación han demostrado que la Teoría de Restricciones, en conjunto con el seguimiento de la metodología MRP, permite una adecuada planificación de la producción. Es por ello por lo que este trabajo se apoyará en ambas herramientas de ingeniería industrial para solucionar la problemática identificada en una importante cadena peruana de restaurantes. TOC permitió identificar la restricción del proc...
4
tesis de grado
Publicado 2018
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The puberty is a process that includes morphological, physiological and behavioral development, which allows to achieve fertility. In this period, menarche, the most widely used index of sexual maturity, occurs in the girl. In recent years, a tendency to decrease the prevalence of early puberty has been described. Likewise, the prevalence of childhood overweight and obesity ca be noted. Thus, it can be determined if a high BMI for age is a risk factor for early menarche. Materials and methods: A cohort study was carried out with 160 students from ¨Santa Rosa¨ National School of Trujillo, Peru, who met the inclusion criteria. The group exposed was 32 girls who presented high BMI for age. The group not exposed were 128 girls with a BMI not elevated for age. Follow-up section for 12 months to determine if it was presented earlier in the exposed group. Results: In the exposed group, the av...
5
artículo
Publicado 2013
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This study aims to show the importance of Landslide Susceptibility Map as a tool for land use planning, prevention and risk mitigation. This will be shown through MM evaluation processes affecting high sector of El Paraíso gorge - Villa María del Triunfo (Lima - Peru).The work consisted of two phases: in the first one (field) the intrinsic characteristics of geology and geomorphology were identified. The second one, included the Landslide Susceptibility Map generation, using the multivariate Heuristic Model consisting of overlapping maps variables (Carrara et al. 1995, Lain et al. 2005), developed in a GIS environment through algebra layer (geoprocessing operations).The results of Landslide Susceptibility Map in general, give us geoscience information that will contribute to land management, and in a timely manner, with the development of specific studies, prevention and / or mitigati...
6
artículo
Publicado 2012
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Pyrolysis is a thermochemical process that occurs in absence of oxygen. The pyrolysis process has three stages: feeding and dosing of raw materials, transformation of the organic mass and, finally, collection and separation of the products (coke, oil and gas). The pilot plant of the PUCP can produce second generation biofuels from organic waste and this responds to the challenge of a sustainable developmentof bioenergy in Peru.
7
tesis de grado
Publicado 2023
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El presente trabajo investigativo consta de un estudio de prefactibilidad para la instalación de una planta procesadora de Masa Congelada para uso en la preparación de Picarones, elaborada a base de Harina de Maíz Morado y otros insumos tradicionales. El maíz morado es una planta que ha crecido en el Perú durante miles de años, fuente de antocianinas que ayudan al control de la presión sanguínea elevada, utilizada irracionalmente de un modo integral no separando los granos del marlo, descartando los granos, parte altamente nutritiva del maíz. Por medio de este estudio se busca evidenciar la factibilidad técnica, social, económica, medioambiental y de mercado de este proyecto, opción ideal para hacer uso industrial de esta planta oriunda de nuestro país. Mediante el desarrollo de nueve capítulos, se irán explicando las técnicas y métodos utilizados para justificar la fact...
8
artículo
The climatologically changes that involve the global heating, have produced in the last decades a great reduction of glacial areas on earth, and this is evidenced by the glacial back stripping The area of study is situated into a seismotectonic zone where an intercordilleran segment has a Cordillera Blanca’s glaciers, that produces a lot of ice2 s falls, moraines landslides and great rocks. These materials fall in to glacial lakes and produce a violent damage. Huaraz city is in the Quilcay2 s alluvial fan, and consists of the fluvial-alluvial sediments Historically in Huaraz have been reported events like landslides that evidence the risk factor and increase the vulnerability of the zone due to deglatiation and lacustrine phenomena’s of Palcarraju mountain and Palcacocha lake. For the mitigation of the risk we are showing some instructions that must be diffused to the most of the peo...
9
artículo
Publicado 2003
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In the present work the revision, deduction and application of mathematical models in the quantification of the reaction kinetics of leaching processes of national sulphided minerals in chemical systems is made. The interaction between the mineral particles and the leaching solution is controlled by three possible mechanisms: by chemical reaction, by diffusion through the porous bed and by mass transfer; Each mechanism has its own mathematical modeling and parametric conditions. Experimental runs of leaching of gold and copper minerals are presented, in which their kinetic control equations of the most relevant variables are shown. Other empirical models are also shown that are used to elucidate the phenomenology of the leaching of mineral species, call chalcopyrite, sphalerite and galena.
10
artículo
Publicado 2003
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In the present work the revision, deduction and application of mathematical models in the quantification of the reaction kinetics of leaching processes of national sulphided minerals in chemical systems is made. The interaction between the mineral particles and the leaching solution is controlled by three possible mechanisms: by chemical reaction, by diffusion through the porous bed and by mass transfer; Each mechanism has its own mathematical modeling and parametric conditions. Experimental runs of leaching of gold and copper minerals are presented, in which their kinetic control equations of the most relevant variables are shown. Other empirical models are also shown that are used to elucidate the phenomenology of the leaching of mineral species, call chalcopyrite, sphalerite and galena.
11
tesis de grado
Publicado 2021
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Esta investigación tiene como objetivo analizar y determinar las zonas susceptibles para mitigar los movimientos en masa en los taludes del caserío Jancos, provincia San Pablo, Región Cajamarca, 2021; el estudio tiene un enfoque descriptivo, según su propósito es aplicado, diseño no experimental y de corte transversal. Para la recolección de muestras se determinó cuatro estaciones en donde se hizo dos calicatas de suelo y se extrajo dos muestras representativas de roca las cuales fueron analizadas en laboratorio que permitió conocer sus propiedades físicas y mecánicas como cohesión, ángulo de fricción y peso unitario; además, se aplicó la recolección de datos mediante fichas de características geomorfológicas, cobertura vegetal, litología, pendientes y precipitaciones que fueron procesadas por el método de Análisis Jerárquico, obteniendo como resultado que en las c...
12
artículo
Publicado 2016
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The article investigates the origins of tourism in Peru during the first half of the nineteenth century, in acontext of arrival of an increasing number of foreign travelers as well as interest on the Peru that arousevarious publications in Europe. Following a series of stories of travelers, it establishes the places of attractionfor foreign visitors and what was the situation of the lodges, roads as well as the food that were accessible. Itargues that the situation of this embryonic tourism was the same that existed in Europe before the emergenceof the consumer society and mass.
13
artículo
Publicado 2016
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The article investigates the origins of tourism in Peru during the first half of the nineteenth century, in acontext of arrival of an increasing number of foreign travelers as well as interest on the Peru that arousevarious publications in Europe. Following a series of stories of travelers, it establishes the places of attractionfor foreign visitors and what was the situation of the lodges, roads as well as the food that were accessible. Itargues that the situation of this embryonic tourism was the same that existed in Europe before the emergenceof the consumer society and mass.
14
artículo
Publicado 2016
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The article investigates the origins of tourism in Peru during the first half of the nineteenth century, in acontext of arrival of an increasing number of foreign travelers as well as interest on the Peru that arousevarious publications in Europe. Following a series of stories of travelers, it establishes the places of attractionfor foreign visitors and what was the situation of the lodges, roads as well as the food that were accessible. Itargues that the situation of this embryonic tourism was the same that existed in Europe before the emergenceof the consumer society and mass.
15
artículo
Publicado 2014
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[ENG] The results of the geological and geodynamic assessment are presented. Besides analysis of landslide susceptibility is made which are of high potential risks to Metropolitan Lima and Callao. This involves the characterization and inventory of surface geodynamic processes, performed by the Geological Institute of Peru (INGEMMET) between 1970 and 2011, which have lead us to identify the critical areas vulnerable to these surface geodynamic processes. In the study area, there have been a total of 848 recent and ancient geological hazards. To do this, we haveused technical literature sources, tools of remote sensing (aerial photographs and satellite images). A fieldwork was done as well, for mapping and geo-referencing processes and represent them in thematic maps using Geographic Information Systems (GIS). To prevent potential landslide disasters in Lima and Callao Metropolitan is nec...
16
artículo
Publicado 2019
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Cocoa beans fermentation is a spontaneous process of post-harvest very important for the development of chocolate aroma and flavor, which involves a number of complex microbial activities. In this work, we identify the microorganisms present in cocoa beans before, during and after the fermentation process, applying DNA sequencing analysis and MALDI TOF / TOF mass spectrometry. With the first method, the predominant bacteria and yeast identified were Lactobacillus plantarum (29%), L. brevis (18%), Bacillus cereus (15%), Pediococcus acidilactici (12%), and Pichia kudriavzevii (100%). The most important peptide sequences of each identified strain by mass fingerprint were characterized too. By the second method, 51 species of microorganisms being 73.7% bacterial species and 26.3% yeast species were identified. Additionally peptide sequences responsible Vicilin protein characteristic aroma of...
17
artículo
Publicado 2019
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Cocoa beans fermentation is a spontaneous process of post-harvest very important for the development of chocolate aroma and flavor, which involves a number of complex microbial activities. In this work, we identify the microorganisms present in cocoa beans before, during and after the fermentation process, applying DNA sequencing analysis and MALDI TOF / TOF mass spectrometry. With the first method, the predominant bacteria and yeast identified were Lactobacillus plantarum (29%), L. brevis (18%), Bacillus cereus (15%), Pediococcus acidilactici (12%), and Pichia kudriavzevii (100%). The most important peptide sequences of each identified strain by mass fingerprint were characterized too. By the second method, 51 species of microorganisms being 73.7% bacterial species and 26.3% yeast species were identified. Additionally peptide sequences responsible Vicilin protein characteristic aroma of...
18
tesis de grado
Publicado 2021
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The production facility for edible biscuit dough made of wheat flour will be located in the department of Lima. The demanding of the project for the last evaluated year is 157 194 containers and each one will be sold at a selling price of S / 14,5. The production process for the final product consists of pasteurizing the flour, mixing it with the chocolate chips, packaging and labeling. In addition, the plant will have 655m2 considering both areas administrative and production. The total investment to execute the project is S / 514 249, an amount that will be financed 70% by a bank and the remaining 30% by own capital. The economic flow of the project reflects an Internal Rate of Return (IRR) of 47% and a payback period of 2,47 years.
19
artículo
Publicado 2019
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Obesity and non-transmissible chronic diseases are becoming epidemic in Latin America, both in adults and children-adolescents. Objectives: To determine the relationship between consumption of ultra-processed food and anthropometric parameters in school age children of a school in El Agustino, Lima. Methods: A cross-sectional study was carried-out applying a questionnaire about consumption of ultra-processed food and measuring anthropometric parameters in school children between 9-17 years of age during November 2017. High consumption was considered (≥ 5 points) and low consumption (< 5 points). Data on sociodemographic information (age in years and gender); weight; height; body mass index (BMI); body mass index for age; height for age and abdominal perimeter were collected as well. Results: A high frequency of low consumption of ultra-processed fo...
20
artículo
Publicado 2024
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Denoising diffusion probabilistic models (DDPMs) have demonstrated significant potential in addressing complex image processing challenges. This paper explores the application of DDPMs in three different areas: reconstruction of remote sensing imagery affected by cloud cover, reconstruction of facial images with occluded areas, and segmentation of bodies of water from remote sensing imagery. Inpainting involves filling in missing regions in images, while DDPMs act as data generators capable of synthesizing information that alings coherently with the context of the original data. Inspired by the inpainting technique, the RePaint approach was adapted and applied to reconstruction tasks. The WaterSegDiff approach, which uses a diffusion model as a backbone, was employed for the segmentation task. To illustrate the model’s behavior and provide examples of the tasks, experiments were carrie...
