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analysis function » analytic function (Expander búsqueda), analytic functions (Expander búsqueda), analisis funcional (Expander búsqueda)
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1
artículo
Publicado 2021
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In this research is analyzed COVID-19 transmission by thermodynamic and energy balance between geographic areas and its correlation with possible COVID-19 transmission between 2 persons at least. In order to achieve parameters for medical doctors, as for example the minimal distance among two infected people, who have this virus, there were designed mathematical models that were based in statistical data to get information of COVID-19 propagation as the dependence on temperature of geographic areas, moreover the thermal effect of the minimal distance between two people avoiding COVID-19 infection. With this work, answers are sought to the questions: if it could be possible to find a relation between temperature and virus transmission? Or if it could be possible to get a correlation variable among thermal variables with minimal distance separation (it was described above) for two people? ...
2
artículo
Publicado 2024
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HIGH-PERFORMANCE COMPUTING EQUIPMENT USES GRAPHIC PROCESSORS, KNOWN AS GPUS, AS A MECHANISM FOR HIGH COMPUTATIONAL CAPACITY. TO INCREASE THE COMPUTATIONAL CAPACITY, ADDITIONAL GRAPHICS PROCESSORS ARE ADDED IN THE CONFIGURATIONS. THIS STRATEGY INCREASES THE COMPUTATIONAL CAPACITY AS WELL AS CONSIDERABLY INCREASES THE TEMPERATURE GENERATED BY THE ENTIRE SYSTEM, NORMALLY THE GPUS HAVE COOLING SYSTEMS, WHICH HELP TO COOL AS MUCH AS THEY ARE REQUIRED, THE OPERATING SYSTEMS HAVE AUTOMATIC MECHANISMS TO ACCESS THE GPUS, THESE FUNCTIONS ARE ACTIVATED WHEN IT IS REQUIRED TO USE THEM, IN THE EVENT OF A NEED FOR HIGH COMPUTING CAPACITY REQUIREMENT. IN THIS WORK WE DEMONSTRATE A METHOD TO ANALYZE THE OPERATION OF COMPUTING EQUIPMENT WHEN WORKING ON HIGH-PERFORMANCE FUNCTIONS, SUCH AS VIDEO GAMES, WHICH REQUIRE HIGH COMPUTATIONAL CAPACITY TO BE ABLE TO PLAY IN REAL TIME AND PERFORM THE TASKS. NECESSA...
3
artículo
Publicado 2015
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This paper presents an analytical solution for the thermoelastic bending analysis of advanced composite sandwich plates by using a new quasi-3D hybrid type HSDT with 6 unknowns which is based on a generalized formulation. In addition, the nonlinear term of the temperature field is included in the generalized mathematical formulation in such way that it can be freely chosen and if desired can be different from the shear strain shape functions of the displacement field. So, infinite quasi-3D hybrid type HSDTs with just 6 unknowns can be derived from the present generalized formulation. The thermoelastic bending governing equations are obtained through the principle of virtual works and solved via Navier Method. Interesting results are obtained and compared with quasi-3D and 2D HSDTs. Transverse shear stress results are strongly influenced by nonlinear temperature field and for different HS...
4
artículo
We are showing solutions of equations matter and energy conservation steday state for calculate thermal efíiciency of steam generators. The analysis of freedom degree show results are functions of variables chosen as input data. The results indicate chemical reactions contribute with 90 per cent of energy neccesary and expense energy share to steam and exit gas.
5
artículo
We are showing solutions of equations matter and energy conservation steday state for calculate thermal efíiciency of steam generators. The analysis of freedom degree show results are functions of variables chosen as input data. The results indicate chemical reactions contribute with 90 per cent of energy neccesary and expense energy share to steam and exit gas.
6
artículo
Publicado 2025
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Intelligent packaging represents a sustainable solution for food preservation by enabling the monitoring of freshness through chromatic changes. In this study, a biofilm based on polyvinyl alcohol (PVA), nanocellulose (NC) extracted from rice straw and blueberry extract was developed and evaluated for its performance as a visual freshness indicator in tilapia fillets. Nanocellulose, obtained by TEMPO oxidation, exhibited proper integration into the polymeric matrix according to transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and X-ray diffraction analysis. The biofilms improved their mechanical properties with the addition of NC, by increasing tensile strength and reducing water solubility. However, the incorporation of anthocyanins increased solubility and water vapor permeability due to their hydrophilic character. Despite this, the...
7
artículo
Publicado 2024
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Transportation is the sector with the highest Greenhouse Gasses (GHG) emissions in Peru, and it is almost completely dependent on fossil energy resources. For the present analysis, we take into account carbon emissions during the production of electricity which may serve as a basis for understanding the carbon footprint (CF) of the alternatives that may be derived from the use of electrical vehicles. Based on the estimated values of emissions according to the type of electricity generation source (renewable or thermal), we have created scenarios to calculate emissions under the condition of electromobility. The CF of the combustion vehicle is 180 gCO2eq/pas-km, while the CF of electric vehicles with renewable energy, national electricity and fossil electricity are 12, 89 and 140 gCO2eq/pas-km respectively. The reduction of CO2 emissions eq. with renewable electrical energy is 93%, while ...
8
informe técnico
Publicado 2021
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The liquid product obtained from tire pyrolysis process, called tire pyrolysis oil (TPO), has a great attraction as an alternative fuel, as it has a viscosity of 5.43 cSt (Sharma et al., 2016), density of 921 kg/m³ (Gamboa et al., 2020), surface tension of 0.028 N/m (Chumpitaz et al., 2019), and higher heating value of 46.32 MJ/kg (Das et al., 2017), which are similar to diesel oil. These physical and chemical properties have motivated research into its application in furnaces, boilers and compression ignition engines. Generally, TPO is blended with diesel or biodiesel in order to decrease the percentage of sulfur and improve the cetane number of the fuel blend (Sharma et al., 2016). However, the evaluation of the quality and applicability of TPO has been focused mainly on combustion emissions and the performance of thermal equipment fueled with this fuel (and diesel/biodiesel blends), ...
9
informe técnico
Publicado 2021
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The liquid product obtained from tire pyrolysis process, called tire pyrolysis oil (TPO), has a great attraction as an alternative fuel, as it has a viscosity of 5.43 cSt (Sharma et al., 2016), density of 921 kg/m³ (Gamboa et al., 2020), surface tension of 0.028 N/m (Chumpitaz et al., 2019), and higher heating value of 46.32 MJ/kg (Das et al., 2017), which are similar to diesel oil. These physical and chemical properties have motivated research into its application in furnaces, boilers and compression ignition engines. Generally, TPO is blended with diesel or biodiesel in order to decrease the percentage of sulfur and improve the cetane number of the fuel blend (Sharma et al., 2016). However, the evaluation of the quality and applicability of TPO has been focused mainly on combustion emissions and the performance of thermal equipment fueled with this fuel (and diesel/biodiesel blends), ...
10
artículo
Publicado 2021
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A quasi-three-dimensional solution for the bending analysis of simply supported orthotropic piezoelectric shallow shell panels subjected to thermal, mechanical and electrical potential is introduced. The mechanical governing equations are derived in term of three-dimensional equilibrium relations and the classical Maxwell's equations. The trough-the-thickness temperature is modeled by the Fourier's heat conduction equation. The coupled partial differential equations are solved by Navier closed form solutions. The trough-the-thickness profile for electrical potential, temperature profile and displacements is obtained by using a quasi-exact method so-called the differential quadrature method (DQM). Chebyshev polynomials of the third kind are used as the basis functions and the grid thickness domain discretization for the DQM. The interlaminar conditions for transverse stresses, temperature...
11
artículo
Publicado 2023
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Prickly pear fruits are seasonal and have shades ranging from pale green to deep purple. Their pigments are associated with bioactive compounds, being sensitive to thermal transformation processes for their conservation. The objective of this research was to evaluate the bioactive compounds and the sensory analysis of freeze-dried prickly pear fruits from an inter-Andean valley in Peru. The prickly pear fruits of the morada, anaranjada, and blanca ecotypes came from an inter-Andean valley in Peru at 2972 m altitude. The sliced fruits were freeze-dried at 40 C and 0.25 mTorr, and the total polyphenol content (TPC), vitamin C, and antioxidant activity (AA) were determined, as well as the color L* a* b*, color index (CI*), FTIR spectra, and mineral content. In the same way, sensory analysis of preferences with nine scales was applied. It was observed that in the freeze-dried fruits, TPC, AA...
12
artículo
Publicado 2025
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Environmental contamination by heavy metals, such as lead (Pb2+), presents significant risks to ecosystems and public health, necessitating the development of innovative and sustainable remediation methods. This study introduces a novel adsorbent derived from microcellulose (MC) extracted from Stipa obtusa, a grass species native to the Andean regions of Peru, Ecuador, and Bolivia, for the removal of lead ions from aqueous solutions. MC fibers were isolated through thermochemical processing, followed by chemical functionalization with sodium chlorite (NaClO2). The resulting functionalized microfibers (FMC) were characterized using elemental analysis, Fourier-transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller surface area analysis (BET), scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). Batch adsorption experiments identified optimal conditions: an ...
13
tesis de grado
Publicado 2023
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Esta tesis comprende un Centro Acuático en la ciudad de Chiclayo, tuvo por objetivo principal, determinar de qué manera las estrategias de enfriamiento pasivo condicionan el nuevo diseño de un Centro Acuático en Chiclayo. Este estudio se basó en establecer estrategias que permitan obtener la temperatura apropiada en el interior del proyecto, para desarrolló de manera confortable las actividades, debido a que Chiclayo es una ciudad con clima caluroso durante todo el año. La metodología utilizada en la investigación es a través de revisión de artículos sobre investigaciones científicas, también la realización de análisis de distintos casos arquitectónicos de los indicadores con fichas e imágenes, con el propósito de identificarlos en hechos reales para validar la pertinencia y funcionalidad. Luego, se aplicaron los indicadores arquitectónicos y la influencia de los aspe...
14
tesis de grado
Publicado 2018
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Existen diferentes tipos de arquitectura; algunos se enfocan en el tema formal con diseños extravagantes o sencillos, otros en el funcional que responden a las necesidades del usuario, otros piensan que “Less is More” (Mies Van dher Rohe); pero también, existe una arquitectura en la que se involucra completamente con el entorno trabajando de manera amigable con éste y así cumplir ante las exigencias del usuario, esta arquitectura es denominada “Arquitectura Bioclimática”. La Arquitectura Bioclimática está influyendo actualmente a nivel mundial debido a que se está buscando contrarrestar la existencia de proyectos arquitectónicos los cuales no poseen relación alguna con su emplazamiento ni se preocupan por satisfacer las necesidades del usuario y mantenerlos en la zona de confort ambiental; además a nivel nacional y local no existe una muestra fehaciente de este tipo de...
15
objeto de conferencia
Publicado 2015
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This work was supported by a grant (No. 013-2013) from the National Council of Science, Technology and Technological Innovation (CONCYTEC/FONDECYT-Peru). Ramos Guivar Juan A. is also grateful to FONDECYT (Grant No. 0218-2014).
16
tesis de maestría
Publicado 2021
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En esta tesis se ha estudiado experimentalmente la conductividad térmica de nano capas y micro capas de pentóxido de niobio Nb2Os con el objetivo de determinar su posible aplicación como barreras térmicas. La deposición del pentóxido de niobio se ha dado usando la técnica de Sputtering, la cual se hizo usando niobio como target y gases como: argón y oxígeno para la formación de óxido de niobio. En este trabajo hemos usado pruebas de rayos X para la confirmación del tipo de material que se ha formado en la deposición en este caso el pentóxido de niobio Nb2Os. Se ha realizado dos tipos pruebas para determinar experimentalmente la conductividad térmica; la primera prueba se realizó usando una resistencia térmica y discos de cobre en los cuales se han colocado termocuplas para poder ver las variaciones de las temperaturas y poder determinar el coeficiente de conductividad t...
17
artículo
Publicado 2021
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Abstract: Ten native potato varieties grown in Cusco (at 3,672 m above sea level) were used for starches extraction (at a pilot scale), and their physicochemical, functional, morphological, and structural characteristics were assessed. The content of protein, apparent amylose and phosphorus ranged from 0.1% to 0.44%, 23.42% to 35.5%, and 0.07 to 0.10%, respectively. Starch granules revealed smooth surface, with ellipsoidal and spherical shapes, particle size analysis exhibited bimodal or multimodal distribution, while the averaged crystallinity was 27.7% assessed by XRD. Gelatinization temperatures of the starches ranged from 57.4 to 60.1 °C, 60.8 to 64.3 °C, and 68.4 to 71.1°C for To, Tp, and Tc, respectively; and the gelatinization enthalpies ranged from 15.4 to 17.1 J/g. Respect to pasting properties, the peak viscosity and setback viscosity ranged from 12,970 to 16,970 mPa?s and f...
18
tesis de grado
Publicado 2016
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RESUMEN El presente trabajo de tesis titulado DISEÑO DE UN OASIS ARQUITECTÓNICO BOTÁNICO PARA LA CIUDAD DE CAJAMARCA, se centra principalmente en el uso adecuado y pertinente de las energías renovables de la región, que contribuirá a disminuir el impacto ambiental en un entorno natural con criterios de diseño para obtener una arquitectura en la que las energías renovables sean aprovechadas y se pueda obtener un confort térmico en espacios socio-culturales para la comunidad. En el diseño del presente trabajo, se realizó el análisis de casos, el aprovechamiento del terreno de la región, características exógenas y endógenas, para resolver la funcionalidad de los espacios, la adecuada estructura, la forma y la relación con el contexto. El uso de energías renovables, ayudará a obtener confort térmico mediante la utilización de recursos naturales de la zona con las estrate...
19
tesis de grado
Publicado 2016
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RESUMEN El presente trabajo de investigación tiene como propósito y objetivo buscar las estrategias arquitectónicas pasivas para un apropiado sistema de confort térmico en el diseño de un Centro Termal especializado en Rehabilitación Física, lo cual permitan generar una arquitectura más confortable y pasiva al momento de diseñar el proyecto Arquitectónico, estas estrategias vendrían a ser: La ganancia solar, las ganancias internas, protección contra vientos, la inercia térmica y el control de la radiación. La metodología empleada para esta investigación es descriptiva con proyecto arquitectónico, se realiza el recojo de información previa para una mejor investigación de fuentes nacionales e internacionales mediante análisis de casos y entrevistas a especialistas en la materia. Los resultados obtenidos en la presente investigación es que gracias a ubicar los diferente...
20
artículo
Publicado 2023
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In the present work, the morphometric and functional characteristics of the Teaone river sub-basin were studied, using geographic information systemtools, as an input for land use planning. Digital global elevation models from the Advanced Spaceborne Thermal Emission and Reflection Radiometer(ASTER-GDEM) were used. Among the most outstanding parameters we have that the Teaone river sub-basin has an area of 504,66 km2, aperimeter of 138,48 km, a shape factor of 0,27; which means that it is not prone to flash floods; and a compactness index of 1,74 that expresses theelongated shape of the sub-basin, with a low water concentration and unlikely recurrent floods.
