Tecnología & Desarrollo (Trujillo)

Evaluation of air quality regarding particles less than 10 microns (PM10 ), in the city of Trujillo, during the months april–july, 2018

Danny Sorel Mejía Pardo — 2018-11-30

The main objective of this research is to evaluate air quality with respect to particles smaller than 10 microns (PM10) in the city of Trujillo, as part of a descriptive study to characterize air quality. For which, the dispositions and methodology established in the National Protocol of Air Quality and Data Management approved by the Directorate General of Environmental Health - DIGESA, whose criteria allowed to locate in the city of Trujillo 7 sampling points were taken into account representative for the measurement of particulate material (PM10). The PM10 sampling was performed under the low volume method with the use of a fine powder environmental sampler, Instrumex IPM-FDS 2.5μ /10μ, collecting the sample for a period of 24 hours for 3 consecutive days for each point of sampling. For the analysis of the sample, the gravimetric method was used, determining for each sampling point, where the following concentrations of PM10 were obtained: Jirón Francisco Pizarro No. 412 is 53.86 μg / m3; Av. Prolongación Vallejo s/n (La Rinconada Recreational Center) is 78.19 μg / m3 ; Av. Salvador Lara Mz. R Lot - 34 is 53.76 μg / m3; Av. Los Incas No. 405 is 46.40 μg / m3; Av. Víctor Larco Herrera No. 13009 is 69.95 μg / m3; Sta. Teresa de Jesús Street No. 513 - Monserrate is 23.28 μg / m3 and Mz. E Lot 17 - Urb. Los Jazmines is 15.38 μg / m3 .Therefore, it was concluded from the evaluation that the concentrations of PM10 at each sampling point are below the Environmental Quality Standard for Air (100 μg / m3) for a period of 24 hours as established in the Supreme Decree. No. 003-2017-MINAM in force at the time of the study, so that air quality in the city of Trujillo is acceptable; result contrary to the Evaluation, was found for PM10 concentrations for the sampling points of Jirón Francisco Pizarro No. 412; Av. Prolongación Vallejo s/n (La Rinconada Recreational Center); Av. Salvador Lara Mz. R Lot - 34 and Av. Víctor Larco Herrera No. 13009, which exceed the threshold concentration of PM10 (50 μg / m3) established by the World Health Organization (WHO 2018).

Influence of temperature on the structure and magnetic properties of thin films of cobalt ferrite

Segundo Rojas — 2018-11-30

The environmental problems that people are immersed in today does not lead to the search for new ways of obtaining methods or materials that solve this problem, materials with magnetic properties give a new solution to this problem. One of the materials with excellent magnetic properties is cobalt ferrite (CoFe2O4), for this reason this work gives an easy and novel way of obtaining this material in the form of thin films. The thin films of CoFe2O4 were deposited by spin coating on Pt substrates (Pt /TiO2/SiO2/Si) at different temperatures (700, 725 and 750 °C). For the precursor solution, iron nitrate [Fe (NO3)3 ∙ 9H2O] and cobalt nitrate [Co (NO3)2∙ 6H2O] were used, which were dissolved in 2 methoxyethanol, with magnetic stirring for two 2 h at 60 °C. In the characterization of the thin films, the structure and magnetic properties were studied by means of X-ray diffraction and a vibrating sample magnetometer. The X-ray diffraction pattern confirms the formation of the cubic spinel structure belonging to CoFe2O4 with the preferential peak (311) without trace of impurities at the temperatures studied. The calculated crystallites are in the range of 10 nm to 24.34 nm for all samples. The magnetic hysteresis shows that at the increase in temperature the magnetic properties also increase.

Expert police system via the web applying forensic computer procedures to improve efficiency in the process of identifying crimes in the complaints made at police station Otuzco in the Year 2017

José Moreno Saavedra — 2018-11-30

The research called “EXPERT POLICE SYSTEM VIA THE WEB APPLYING FORENSIC COMPUTER PROCEDURES TO IMPROVE EFFICIENCY IN THE PROCESS OF IDENTIFYING CRIMES IN THE COMPLAINTS MADE AT COMISARÍA OTUZCO IN THE YEAR 2017” was aimed at improving efficiency in the process of identifying crimes in the complaints made at Comisaría Otuzco (Otuzco Police Station). For this, a Web System, which was oriented in the information systems based on rules that are part of the Expert Systems, was developed. For this purpose, information was acquired through surveys to police officers and observation of the most important processes in the Comisaría Otuzco. For this research, the Student T-test was used as a data analysis method, as well as the Z test of difference of means and the ICONIX development methodology. Likewise, according to the main objective raised in the present investigation, after implementing the police expert system via the web, it was possible to increase the police officers’ satisfaction level by 21.40%. In addition, the average number of processes to identify crimes was increased by 48.32%. Besides, it was possible to reduce the delay time in the process of identifying crimes in the complaints made by 77.51%. In the same way, it was possible to reduce the average time for preparing the documentation of complaints by 72.68%. The implemented expert police system via the web allowed automating the processes of identification of crimes and registration of complaints. Therefore, based on the foregoing, it is concluded that the implementation of the expert police system via the web has significantly improved the efficiency in the process of identifying crimes in the complaints made at Comisaría Otuzco.

Web system based on neural networks to improve the tax collection in the District Municipality of La Esperanza in the year 2017

Felix Bernal Aguilar — 2018-11-30

In the present investigation a WEB System based on neural networks was developed. The objective was to improve the tax collection in the District Municipality of La Esperanza with the purpose of increasing the average number of monitoring of taxpayers who pay more taxes by sector, increasing the average time in the monitoring of each registered property, increasing the average time in the follow-up of the notifications and, finally, increasing the level of accuracy of the tax collection forecast using neural networks. The population was made up of 33,000 contributors. PHP was chosen as the programming language for the development of the WEB System using MySQL as a database manager, and the ICONIX methodology was used as well. Through the experimental design of pre-test and post-test, the results obtained were positive since the average number of monitoring of taxpayers with the current system was 1.414 times, while with the implemented system it was 3.370 times, increasing by 1.956 the number of times. In the monitoring of properties with the current system was 3.818 times while with the proposed system was 9.655 increasing the average number of registered properties by 5.837. In the follow-up of the notifications with the current system, it was 0.950, while with the proposed system it was 3.992, increasing by 3.042 the average in the effective notifications. The level of accuracy in the tax collection forecast with the current system, it was 0.506 times, while with the proposed system it was 1.518, increasing the average number by 1.012. It was concluded that with the implementation of the system, the tax collection in the District Municipality of La Esperanza was significantly improved.

Static microzoning of soils in the blocks

Sheyla Cornejo Rodríguez — 2018-11-30

The present article of static microzoning of soils blocks A-B-C-D, in Mercado Libertad (La Hermelinda), District Trujillo, determined the map of microzonification using the methods of SUCS and Terzaghi; Soil strata were sampled by means of six 3.50 m deep pits, where it was determined, according to the Unified Soil Classification System (SUCS), that the physical-mechanical characteristics of the soils are between poorly graded arenas (SP) and silty sands (SM), with a permissible load capacity between (1.60 to 1.75) kg / cm2 for insulated shoes of 1.5 m by 1.5 m; And for running foundations (0.94 to 0.98) kg / cm2. It is concluded that the support capacity of the soils is low resistance.

Optical, structural and electrical properties of ZnO - Mg thin films prepared by sol-gel method

Alex Díaz — 2018-11-30

In this research, thin films of ZnO doped Mg at 0.65 M, synthesized by the sol-gel method, and deposited on quartz substrates by the spin-coating method were evaluated. The effect of the annealing temperature (400, 500 and 600 °C) and the molar percentage of the dopant (2, 4, 6 and 8%) on the electrical and morphological properties were determined. It was found that, the thin films of ZnO show the highest electrical conductivity and large grain size at doping of 2% Mg with an annealing temperature of 600 °C, with values of 8.55x10-7Ω-1cm-1 and 38.56 nm respectively. Also, the lowest electrical conductivity and the smallest grain size is given to a doping of 8% Mg with an annealing temperature of 400 °C, with values of 1.48x10-7 Ω-1cm-1 and 14.13 nm; so, the grain size grows with the increase of the temperature; but it decreases as the molar concentration of Mg increases. The grain size was determined by the Scherrer equation on the X-ray diffraction peaks (XRD). The results showed that the thin films of ZnO doped with Mg have a wurtzite hexagonal structure with a preferential orientation to the plane (002).

Environmental Monitoring in the Molinera Sudámerica S. A. C. - Lambayeque

Jenny Montoya Burga — 2018-11-30

This research was developed in the Molinera South América S.A.C, located in Department of Lambayeque, a private company that focuses on the process of husked rice whose production are set in different markets of the region and the north of the department. La Molinera South América aware SAC preservation and conservation of life, health and sustainable development of the environment is ready to fulfill scrupulously all laws on environmental matters governing our legal system between them and a priority the rules contained in Title XIII of the Penal Code, based on environmental crimes. The objective of this research is environmental monitoring in South América SAC Lambayeque Molinera accordance with the current regulations in the environmental sector in Perú. The methodology used is purposive, whose design is divided into two stages, the first is fieldwork where the assessment and measurement of environmental impact and information gathering was held. This information gathering was to conduct environmental monitoring to measure different environmental parameters such as air quality, with a gas analyzer mark RKI model EAGLE meteorological variables with a portable weather station brand Davis Vantage Vue, georeferencing took a bookmark GARMIN GPS map60CSx model, to measure particulate matter PM2.5 sampler vol brand ECOTCH Mmi 1100 model was used, the measurement of environmental and occupational noise was made with an impulse integrating sound level meter mark CIRRUS 811 C model and indexes diversity of flora transects of 100m in length were selected by 10 wide placed under the sampling criterion for convenience in sectors considered of the company South América SAC, data were entered into the computer program BIO DAP to determine the rate of Shannon- Wiener and Cody index and Routledge. AND In this investigation it was concluded that: Milling S.A.C South america in the process of milled rice has a high level of noise due to comprenssor and a high rate of particulate matter. The other environmental parameters is like the case of gases, do not exceed the maximum permitted levels.

Design and manufacture of an automatic swallow dispenser “Barbot”

Pedro Alván — 2018-11-30

In this paper presents the design, simulation and implementation of an automatic drinks dispenser “Barbot”, a Barbot is a robotic bartender capable of making all kinds of cocktail drinks, shots of any liquor or other drinks that generate greater complexity, since its application or function is fully programmable according to the need that customers require, in this way the Barbot is an assistant who performs mechanical work with total precision when generating a particular drink. The bars, restaurants and leisure centers are very popular media for people to strengthen their family, social and social ties where the presence of drinks, cocktails and different types of drinks is common consumption. In general, and especially in Peru, the Bartender service is usually manual, however this can become a problem when the demand for drinks and cocktails orders is higher than the capacity to produce them by the workers or those in charge of its preparation, generating production bottlenecks that result in lost time and subsequent discontent in the client. On the other hand, in more private environments there is usually the case of wanting a certain drink or cocktail and not having the time, knowledge or encouragement to elaborate, thereby generating an internal frustration. An alternative solution to the previously described is the development of an automatic beverage dispenser (Barbot) as a highly reprogrammable and easy to use automatic assistant device, does not require the user to have specialized knowledge and allows to obtain different types of drinks and beverages according to the customer’s need. First, the mechanical-electrical structure of the Barbot is implemented and calibrated. Second, the electronic components, the firmware, the working tools of the Barbot are installed, calibrated and configured. Third, a logical structure standard is developed for the application programs in order to guarantee efficient work without collisions. Finally, different results of the Barbot’s work are shown.

Design and construction of an electropneumatic cutter for clay bricks

Stàmiz Alarcón — 2018-11-30

This paper presents the design, simulation and construction of an electropneumatic cutting machine for clay bricks, which allows different sizes of clay bars to be obtained according to programming and thereby increase productivity and minimize the waste of raw material for the production of bricks. Clay brick is a highly consumable product in the construction sector for both single-family and multi-family homes as well as constructions for industrial and business uses. The demand for this type of brick is increasing every year which demands a continuous improvement in the process of obtaining it by the manufacturers in order to efficiently satisfy the market. One of the fundamental phases in the manufacture of the brick is the cutting of the raw material moistened with clay that reaches the cutter as a rectangular continuous bar. Currently, in almost all brick factories in the north of Peru, the cutting is done manually by operators trained specifically for this purpose. It is important that the operators have the necessary experience in order to make the cut that allows to have bricks with the standard dimensions required by the standards for a safe and robust construction. So if market demand exceeds the production capacity of trained operators could generate bottlenecks or production with irregular quality according to the experience and training of shift workers. An alternative solution for the previously described is the brick cutting from an automatic cutting machine. Currently in the market there is a diversity of manually operated brick cutting machines, whose mechanical structure helps the cutting precision of the operator, however it does not solve the bottlenecks that may occur due to increased production demand and ensure a quality homogeneous Additionally, it must be considered that once the cut is made it is necessary to pick up and leave the cut parts in certain trays, which increases the responsibilities and execution time of the operators. So an adequate solution to the problem of lack of specialized human resources for cutting the raw material wetted to obtain clay bricks would be to have an automated machine fully in the cutting phase and thus leave the operators the simplest action and concrete to catch and leave in the specific trays. This paper presents the design and construction of an electropneumatic cutter for clay bricks highly versatile, efficient, flexible, easy to install, stable in its operation and especially with possibilities of being modified and therefore improved or complemented in both hardware and in software. First define the design criteria and the properties that would intervene in the machine. Second, the design is validated by simulation, third, the brick cutting machine is built according to the elaborated plans and finally the operation of the machine is shown.

Design and implementation of a 3D multifunctional core XY printer

Sixto Prado — 2018-11-30

In this paper presents the design, simulation and implementation of a 3D printer with additive printing capacity and laser, within the framework of a technological development strategy focused on the region La Libertad-Peru. One of the most important purposes of this project is to obtain a methodology, protocol and know how to develop this type of technological devices with the best technical performance of the market. A common feature in the formation of various professions such as engineering, medicine, dentistry, architecture, arts, etc., is the use of prototypes and models to facilitate the understanding, analysis and synthesis of various knowledge as well as the use of these as tools for validate different works of research or technological innovation. In general, the prototypes and models are made up of various pieces that students manufacture and assemble in many cases manually or with instruments that do not assure them the required accuracy, robustness, stability and elegance of the final prototype. This can generate cases where the design and mathematical modeling of an academic work is adequately supported, however, its experimental validation is poor due to the constructive uncertainties of the final product of the work. In engineering, the prototyping and use of models is inherent to the profession itself and its efficient manufacturing and assembly allows a better understanding and understanding of the diversity of knowledge that is integrated to obtain a specific product, otherwise, that is, the use of deficient prototypes (poorly assembled parts, excess friction, interplay between games, excessive vibrations, etc ...) can affect the motivation of the student and generate distrust in the theoretical knowledge given that the prototype does not work according to what is expected from the theory. A proposed solution for the previously described, is the manufacture of pieces from a 3D file through the subsequent deposition of layers of material to obtain the desired piece. In the market there are several models of low cost 3D printers that allow to obtain pieces with simple geometry but they also have continuous defects in their operation when you want to increase the complexity of the geometry of the piece to obtain and that is due to structural limitations mechanical, the simplicity of the drive, sensor and electronic control components of such equipment. This paper presents the development and implementation of a highly versatile, flexible, easy-to-install 3D printer that occupies little space, stable operation and especially open technology, that is, with hardware and software with free code so that Allow students to modify and improve their future benefits. First, the design criteria and desired technical properties of the printer are defined, which allows selecting the Core XY geometry as the most suitable to achieve them. Second, the design is validated by simulation, third, the multifunctional 3D printer is implemented according to the results of the simulation and finally different printed objects are shown.

Implementation of a plastic shredding machine

Saez Angaspilco — 2018-11-30

This paper presents the design and implementation of a prototype of PET plastic crushing machine (polyethylene terephthalate), as an alternative technological solution to the great problem of environmental pollution due to the excessive consumption of materials that are not degradable, such as plastic. This project is part of a local technological innovation solution given that in the La Libertad-Peru region, despite the high consumption of plastic materials, there is no formal recycling or disposal strategy for this type of waste, nor technological developments for that purpose. So the proposal that is implemented in this work has a contribution of technological innovation for the recycling of plastics and thus contribute to the transformation or elimination of plastic wasteIn a few words, turning trash into something useful, This article shows the results obtained from a research carried out on the impact of PET, as well as the prototype and design of a PET-type plastic crushing machine. On the other hand, PET-type plastics are easily crushable to tiny dimensions to be subsequently used in different processes that determine products useful to man or with less negative effects on the environment. And in that sense, the work presented here develops a prototype crusher machine whose parts and components are easily constructed or acquirable in the local environment. The plastic crushing machine developed here consists of 3 main parts: (1) Electric system with control logic and direct starting of a three-phase motor. (2) mechanical structure or body of the equipment, which allows to support or support the different parts of the machine. (3) crushing system, which converts the recycled plastic into small chips, which are then stored in a deposit that is part of the machine developed. The knowledge acquired in the course of electromagnetism, from the Mechanical-Electrical Engineer career, allows the design and construction of a plastic waste crusher that guarantees its proper functioning, ease of operation, job security and an adequate selection of the different elements and materials required for the implementation of the equipment.

Assignment of personnel with unstable work period

Santos S. Javez Valladares — 2018-11-30

One of the ways on how to publicize that the operations research techniques are very useful is generating its application to the solution of problems of everyday life, so that the present work is the application of an applied model of linear programming Allocation of staff with unstable period of work, this was motivated by that within a small business selling fast food was to be given the possibility that some students can work for hours, according to its availability within the week, is clear that by various activities their schedules changed from one week to another This created a serious problem to the administrator of the business that knew not in many cases assign different youth groups with the intention of complying with the minimum amount of necessary personnel in every time and every day in the best way. This became necessary to produce a linear model programmed in Solver to have better presentation and ease of being able to print each group their working hours during the week.

Model of inventory management to reduce the logistics costs of raw material in the company ARY Servicios Generales S. A. C.; 2017

Josselin Ventura Rodriguez — 2018-11-30

The present thesis sought to develop a model for the management of inventories to reduce logistics costs within the company ARY Services Generals S.A.C of Trujillo, through the implementation of the inventory model of periodic review because today what every company seeks to satisfy the customer, but taking care of their internal costs. The study was applied to the inventory of raw material made up of 40 materials to produce 10 products segment A. Performing a pre-experimental design studio working on a retrospective basis with the historical demand with the model proposed a reduction of the logistics costs of S/. 6,341.61 soles per year (2.39%). The results were statistically analyzed with the Wilcoxon test with a P value less than 0.05 to report the difference of the logistics costs a behavior not normal. With which it is concluded that the development of a model for inventory management as in this case the model of periodic review allowed to reduce logistics costs in a significant percentage, which is optimal for the study.