The objective of the research was to determine the exposure to particulate material in the textil area of a manufacturing company of linens and duvets, where it is carried out measurements of particulate material in respirable fraction 2.5 µg/m3. The same were made through the use of the equipment of direct reading and the results are compared with the value set limit. The study found that in the operation with the overlock machines is where there is a greater amount of particulate matter getting the maximum value in the entire production plant of 244 µg/m³, and a lower value machine in the bender with a value of 9 µg/m³ During the course of the investigation, it wanted to know the perception of the employees, to do this a survey was administered in a manner that takes first-hand the opinion with regard to the work. Among the results is that the staff is aware that there is particulate matter and if you have had respiratory complaints, indicate that the organization presents a great deal of commitment to the security and they also are involved in the tasks.

This research focusses on characterizing the sick building syndrome (SBS) on three buildings of the Engineering Sciences Faculty, at the Occidental Campus of the Universidad Tecnológica Equinoccial. By means of a comparative analysis between the prevalence result obtained within the research work and a comparison with the allowable levels according to NTP290 Spanish Code, determination was made that, in effect SBS exists in the studied buildings. The physical risk questionnaire was applied to the universe of studied people (N=64). Based on the results and in accordance to the prevalence appraisal, a proposal was formulated for the remediation of the involved working conditions on the studied buildings. This research will serve as an institutional reference for the building quality indicator of the University facilities and also for future researches

This paper presents the oil deposit and operational variables that influence the implementation of the Steam Assisted Gravity Drainage (SAGD) process for the Production of Heavy and Extra-heavy Crude Oil. This process consists of drilling two parallel horizontal wells, one above the other, where the upper well is used for steam injection and the lower well is used for production. The efficiency of the process is greatly affected by the deposit and operating parameters (vertical spacing of wells, injection pressure, preheating period, among others). Furthermore, the prediction of the maximum rate of oil extraction was determined using an example with currently available real data of Block 20 of the Pungarayacu Field

In this work is reported an initiative to implement 24 assembly laboratories for General Physics, Applied Physics and Heat and Electromagnetism, in the premises of the Universidad Tecnológica Equinoccial (Santo Domingo, Ecuador). For this purpose three student memoires where designed and performed with unused, stored equipment, plus some additional material coming from students contribution. Each practice was set up and validated for teaching purposes with the methods of calculation errors and linear regression. This work saved the institution $16,369.57 compared with the cost of buying a commercial set for the laboratory

Three levels of paste Plukenetia volubilis (Sacha Inchi) consisting of 10, 15% and 20% were evaluated to replace the weight percent lard conventionally used to improve the nutritional quality of the common hamburger, compared with a reference group. The experimental units were 10 burgers, weighing 100 g. each and a total of 120 were analyzed in a completely randomized design with three replications. The research was conducted in the Universidad Estatal Amazónica and bromatológics and microbiological analyzes to determine the quality of the raw material and products are made in laboratory of the Faculty of Chemical Sciences of the Universidad Central del Ecuador. As supplements sensory tests and studies Benefit / Cost performed. The results show the variation of 10% pulp Sacha Inchi as the most recommended for use in industry

An empirical rule is proposed for determining the sample size n to be taken depending on the lot produced size N for a single attributes sampling under normal inspection based on the standards COVENIN 3133-1: 2001 and MIL-STD-105E; also, the acceptance number c for a given level of acceptable quality was calculated, and the corresponding operating characteristic curves were constructed. Two potential regression equations were obtained for calculation of sample size to fit R2 of 99.91% and 99.38% for lot sizes N=666 and N>666, respectively, in addition, a sampling plan was designed for a lot size of 176,000 units with an acceptable level of quality of 0.65% defectives units. The proposed sampling plan presented a smaller sample size (n=560) than the standard (n=800), with operating characteristic curve very similar to the closest sampling plan recommended by the standard (n=500). The application of the empirical approach is recommended for the design of cheaper sampling plans which in turn are consonant with the rules COVENIN 3133-1: 2001 and MIL-STD-105E

Software development is an activity, inherently collaborative; usually development teams have members located in different places, talking different languages and with another culture. Therefore, knowledge about helping tools is necessary. These tools could be helpful in the whole process of software development, and mainly in the coding stage. This paper shows new perspectives in collaborative software development, its relevance; then, shows a set of important tools. They include plugins and web-based tools. A set of important features and a comparison are shown. This information would be helpful if you are thinking about build or use one

This work recreates a proposal to evaluate the usage of different books categories in a university library. The model employs a mechanism to carry out usage statistics and a mechanism to carry out discovering association rules, from use data stored in the library system. Usage statistics are computed based on the degree of importance, or relevance, with respect to an area of knowledge, and association rules provide support to determine the final use of the various categories. In the process we take into account that stored data correspond to books requested on loan, renewal or consultation. The study presents knowledge discovery in data, aiming to enhance the management of a university library

The current research suggests that using of agile methodologies in conjunction with open source software tools can improve productivity, reduce costs and optimize resources in the process of software development, and helps improve user satisfaction due to implementation of excellent quality software. The following analysis shows the most important variables for the successful implementation of IT development projects and their relation with the use of traditional and agile software development methodologies