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separation process » dehydration process (Expander búsqueda), selection process (Expander búsqueda), evaluation process (Expander búsqueda)
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1
tesis de grado
Publicado 2025
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Over the years, there has been a massive expansion of maca crops in the province of Junín, causing a shortage of skilled labour, which has led to an increase in cost and time in the dehydration process in the production of maca. This is how the main problem arises: How do I design and manufacture a machine to separate impurities from maca to improve the dehydration process? The project is based on the design and manufacture of a device that helps to reduce the time spent in the cleaning area in the dehydration process, as this is where the most time is spent and in turn, generates more costs for skilled labour. It should be noted that this process is carried out manually by two people using mesh sacks, taking an average of 4 minutes per 10 kg of maca. This machinery consists of a metal structure that supports the baskets, whose function is to clean the impurities brought by the maca, wh...
2
artículo
Publicado 2014
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In the last years, there is a gradually participation of the Judicial Branch in the Congress competences and functions to supervise and inquire into issues of public interest. As a result, it has questioned the separation of powers principle. In that context, this article focuses on analyzing what the judicial supervision limits of the due process in the procedures before the inquiry commissions in the Congress are.
3
artículo
The present research aims to analyze seven cases of custody dispute verified by a forensic psychologist in a county South of Brazil, where were observed substantial damage and/or alienation in the relationship between child and one of parents. A documentary retrospective study was conducted, which sought the categories most frequently found in each of the cases. It was noted that when one of parents does not accept the separation and remains in custody of children, it is possible this initiates a process of growing apart of the child with the ex spouse, which can cause serious harm to child development. The main damage observed were: aggression, depression, anxiety, use of lies to communicate, rejecting the parent who does not have custody, and even incorporating phrases of the parent who obtained custody as if they were their own.
4
artículo
In this paper the simulation of separation systems LV ( G) for simple multistage multicomponent absorbers and absorbers with reboiler , where mixtures are considered ideal behavior and distillation processes is studied which mixtures can be considered ideal or not with behavior ideal. The simulation of such separation process is performed using the Newton -Raphson method numerical 2N . For non-ideal mixtures the activity coefficient is used in the liquid phase , which is evaluated from thermodynamic models : Wilson, NRTL , UNIQUAC and UNIFAC . In this paper the mathematical model and simulation program developed for the separation of these processes is described. A variety of examples have been used to test the functionality of the program. The results produced by the program are compared with those for the CHEMCAD III. It has also conducted sensitivity analysis for the initial temperatu...
5
artículo
In this paper the simulation of separation systems LV ( G) for simple multistage multicomponent absorbers and absorbers with reboiler , where mixtures are considered ideal behavior and distillation processes is studied which mixtures can be considered ideal or not with behavior ideal. The simulation of such separation process is performed using the Newton -Raphson method numerical 2N . For non-ideal mixtures the activity coefficient is used in the liquid phase , which is evaluated from thermodynamic models : Wilson, NRTL , UNIQUAC and UNIFAC . In this paper the mathematical model and simulation program developed for the separation of these processes is described. A variety of examples have been used to test the functionality of the program. The results produced by the program are compared with those for the CHEMCAD III. It has also conducted sensitivity analysis for the initial temperatu...
6
tesis de grado
Publicado 2023
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El presente análisis jurídico, se basa en una sentencia emitida por la Sala Civil Permanente de la Corte Suprema de Justicia de la República, sobre el aumento en la suma dineraria respecto de los alimentos asignados de acuerdo a las variaciones de las necesidades, la materia en discusión la transgresión del derecho a la debida motivación de las resoluciones judiciales, mediante la sentencia recaído en la Casación N°5341-2008-Lima; el señor John Erich Torres Campana interpone demanda de divorcio por causal de separación de hecho, contra Silvia Rocío Sánchez Morot, dado que existiendo incompatibilidad de caracteres que constantemente los llevaba a continuas discordancias conyugales y a fin de no afectar el desarrollo integral de su hija; ante ello la demandada Silvia Rocío Sánchez Morot formula reconvención donde solicita el aumento de la pensión de alimentos a favor de su...
7
artículo
Publicado 1999
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Advanced strategies for the design of clean technologies are characterized by reducing waste emissions, reducing their generation at the source itself and implementing measures to reduce water consumption, recover material and energy resources through recycling and integration of processes and an adequate selection of raw materials. Along with this, emphasis has been placed on the development of effective environmental management practices. [1] The design of clean processes is based on the use of classical engineering tools, to conceive a production scheme that considers both technical-economic and environmental aspects. These objectives are compatible, since the environmental impact can, in part, be reduced by increasing the overall productivity of the process. In many cases, modifications with low capital requirements have led to significant increases in productivity and a reduction in...
8
artículo
Publicado 1999
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Advanced strategies for the design of clean technologies are characterized by reducing waste emissions, reducing their generation at the source itself and implementing measures to reduce water consumption, recover material and energy resources through recycling and integration of processes and an adequate selection of raw materials. Along with this, emphasis has been placed on the development of effective environmental management practices. [1] The design of clean processes is based on the use of classical engineering tools, to conceive a production scheme that considers both technical-economic and environmental aspects. These objectives are compatible, since the environmental impact can, in part, be reduced by increasing the overall productivity of the process. In many cases, modifications with low capital requirements have led to significant increases in productivity and a reduction in...
9
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.
10
artículo
The objective of this research was to deepen the understanding of ethnomathematics developed by masons in the Amazonian regions of Peru. To this end, the mathematical concepts implicit in the masons' practices were identified and analyzed, as well as to understand the role of culture and the natural environment in the configuration of this knowledge. The type of study was considered ethnographic, and consisted of gathering information through observation. A questionnaire was applied, with the purpose of evidencing the procedures carried out by the masons in the resolution of labor calculations using the fundamental operations (addition, subtraction, multiplication and division) of ethnomathematical origin. In the same way, scientific articles were reviewed. One of the key findings of this research is the integration of mathematical concepts in the labor practice of masons. It was observe...
11
artículo
THE IMPORTANCE OF SOCIAL ENTREPRENEURSHIP TO THE PROCESS OF GLOBALIZATION OF THE ECONOMY AND MARKETS
Publicado 2015
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The objective of the present paper is to contribute to the debate that will allow us to deepen the analysis of why the separation between ethics and economic science has led us to forget the altruistic dimension of human being and consider only its selfish dimension, the same that has shaped a global economic system with problems of inequality, poverty, social exclusion and environmental disarray. The critical analysis of the various reviewed documents in relation to this debate and the resulting indicators, lead us to raise the importance of social entrepreneurship, linked to the achievement of a more fair economic system where ethics and economy are inextricably linked. Social entrepreneurship is emerging as a response to the problems that the model of global capitalism is generating to the population and to fill the vacuum of weak social policies of governments focusing on policies of...
12
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...
13
artículo
This research aims to explore possible solutions to the problems presented in auriferous sulfide minerals , which have cianicidas by metals ( Gold companions ) can not be cyanide by high reagent consumption , which makes the process uneconomical . Also be a problem hitting the small domestic mining sites that have these features that can not be traded concentrates by high penalties imposed on them , then creating a social problem that should be taken into account. At the experimental level by testing and subsequent acid leach cyanidation seek to find a process that allows for adequate separation of gold copper and other species also have high technical and economic efficiency. Exploratory tests shown indicate the feasibility of finding the right process for the investigated mineral content has Gold , chalcopyrite , malachite , magnetite , hematite , goethite , covellite , chalcocite , an...
14
artículo
This research aims to explore possible solutions to the problems presented in auriferous sulfide minerals , which have cianicidas by metals ( Gold companions ) can not be cyanide by high reagent consumption , which makes the process uneconomical . Also be a problem hitting the small domestic mining sites that have these features that can not be traded concentrates by high penalties imposed on them , then creating a social problem that should be taken into account. At the experimental level by testing and subsequent acid leach cyanidation seek to find a process that allows for adequate separation of gold copper and other species also have high technical and economic efficiency. Exploratory tests shown indicate the feasibility of finding the right process for the investigated mineral content has Gold , chalcopyrite , malachite , magnetite , hematite , goethite , covellite , chalcocite , an...
15
artículo
Publicado 2001
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The present work deals with the proposed treatment scheme for the recovery of PVC and PET using mineral processing operations such as: size reduction. Separation by dense means, alkaline treatment and flotation. The results achieved at the laboratory level indicate that 95% of PVC and 97% of PET can be recovered from the selected sample of plastic containers collected in a residual sector of the city of Bucaramanga, Colombia.
16
artículo
Publicado 2001
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The present work deals with the proposed treatment scheme for the recovery of PVC and PET using mineral processing operations such as: size reduction. Separation by dense means, alkaline treatment and flotation. The results achieved at the laboratory level indicate that 95% of PVC and 97% of PET can be recovered from the selected sample of plastic containers collected in a residual sector of the city of Bucaramanga, Colombia.
17
artículo
Publicado 2020
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Respect for the principle of “due process” in the administrative procedure envisaged for the application of the prohibitions on anticompetitive behavior established in Peru’s antitrust regulations before Indecopi is called into question due to the lack of separation between the investigative body (Technical Secretariat of the Commission of Free Competition) and the decision-making body (Commission of Free Competition). This article examines the issue from three perspectives. First, from the functional economic perspective, the organization and the administrative sanctioning procedure provided for in the Peruvian antitrust legislation are part of the public enforcement model that entrusts Indecopi (an agency divided into two units) with the enforcement of the prohibitions of anticompetitive conduct. Inevitably, this may lead to a confirmation bias (prosecutorial bias) -conscious or ...
18
artículo
Publicado 2016
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This research consisted of the evaluation and characterization of wastewater generated during the leather soaking process, both in its conventional method and its enzymatic method. The experiments were conducted at an industrial scale at the Helianthus S.A.C. Company in Lima, using 20 cow hides. Likewise, a treatment process was evaluated for these effluents consisting of protein precipitation and was followed by coagulation. Finally, the dry sludge from each treatment method was evaluated separately for its potential use as fertilizer. The process for the chemical precipitation of proteins consisted of applying KOH until reaching pH values of 10, 11 and 12; while the coagulation process consisted of the application of doses of 600, 800 and 1000 mg/L of aluminum sulphate 17%. When using the conventional soaking process wastewater, the proposed treatment system achieved removal efficienci...
19
tesis de grado
Publicado 2023
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Este trabajo de suficiencia profesional tiene por objeto analizar la Casación N°2039-2020-Lambayeque, derivada de un proceso judicial de derecho privado en materia de familia, la cual expone lleva a reflexionar las consideraciones en la configuración del elemento objetivo en la causal de separación de hecho. El caso inicia con la demanda interpuesta por el señor T.E.T.M. contra la señora N.J.A.M., mediante la cual solicita la disolución del vínculo matrimonial, el fenecimiento de la sociedad de gananciales y el cese de la obligación alimentaria. La resolución de primera instancia declara infundada la demanda fundamentada en que la demandada negó que exista separación, evidenciándose de los medios probatorios presentados que ambos mantienen el mismo domicilio real. Tras la apelación por la Sala Superior confirmó la sentencia. En casación, la Corte Suprema declaró nula la ...
20
artículo
Publicado 2022
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The objective of this work is the design of a prototype of a pneumatic centrifugal concentrator that allows small-scale mining that takes place in desert and isolated places, to process ultrafine gold minerals in situ, cleanly, without the use of water and chemical reagents. A mathematical model based on the physico-phenomenological analysis of the differential sedimentation separation mechanism was applied in a film of laminar flow fluid, to determine the particle trajectory inside the bowl of the centrifugal concentrator as a function of the variables of bowl geometry, operating variables and physical characteristics of the particle and fluid. The simulations carried out showed a remarkable effect of the use of air instead of water on the trajectory of the particles within the fluid film. The results also showed that the capacity of the concentrator for the separation of particles by d...
