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This work describes the perceptions that Industrial Engineering students have regarding Colombian firms' corporate social responsibility (CSR) practices. It also explores the incidence of gender, academic level, work experience and entrepreneurial intention on students' vision. A survey with 70 CSR practices was designed based on previous research. Practices were grouped in ten dimensions: shareholders, customers, employees, suppliers, stakeholders, ethics, environment, legal, human rights and society. A representative sample of 142 students was used. Results show that students perceive a higher commitment of Colombian companies with the shareholders dimension, while a lower with the society, ethics and environmental CSR practices. Work experience and entrepreneurial intention are the only variables affecting the identified perceptions. Thus, as they gain experience, their perceptions become more favorable. On the other hand, potential entrepreneurs have a more critical view on the companies' commitment. Additionally, the fact that the academic level does not impact students' perceptions constitutes a challenge for the academic program, since it is expected that this will affect the vision of future engineers. This is the first study that evaluates perceptions of Industrial Engineering students, who, given their object of study, will be responsible for designing and managing production processes in organizations of the future. Results respond to a specific context (students at a Colombian public university), therefore further research to explore the subject is recommended.

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The use of nucleation and growth inhibitors at offshore oil industry to avoid inorganic scaling could be replaced by both physical and chemical modifications at surfaces to prevent the scaling. In that way, the slippery lubricated surfaces have been showing promising results as scaling preventers, notably when the lubricants are perfluorinated oils, which are immiscible with almost every kind of compound. Nonetheless, the requirement of periodically refilling these lubricant oils is disadvantageous, especially when dealing with deep sea facilities. Using petroleum as the lubricant oil could skip the refilling step, since it is always present in the extraction medium. So, this work tests the effectiveness of petroleum as the lubricant oil in functionalized textured polyaniline applied as anti-scaling material in conditions that simulate the medium of offshore operation. As result, petroleum as lubricant oil presents effective anti-scaling capacity and works perfectly in slippery lubricated surfaces.

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In this research, the unrefined non-centrifugal sugar (UNCS) quality obtained from two sugarcane varieties (RD 7511 and CC 8475) and using two types of technologies (traditional and Ward-Cimpa production facilities) were evaluated. The parameters monitored through the process were impurities, total soluble solids, acidity, pH, and temperature profile. Microbiological analyses were carried out on beating, molding, packing, and storage operations; and finally, an organoleptic analysis was carried out on the final UNCS product. Results showed that the UNCS obtained from variety CC 8475 had higher consumer acceptance; meanwhile, the technologies assessed did not show significant differences in final product quality. However, these technologies showed significant differences in the highest temperature, syrup, and juice properties. Microbiological analyses highlighted beating and molding as the critical points in UNCS production safety. Finally, it was evident that the implementation of new technologies or the improvement of the furnace, as in the Ward-Cimpa production facility, is not enough to achieve food safety requirements, as many other conditions affect the microbiological quality of the product. Although the temperatures reached on the Ward-Cimpa furnace are higher than those reached with the traditional furnace and thus, enough to kill all the harmful microorganisms, contamination in downstream operations still occurs.

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In this work, we study and characterize 20%- and 30%-reinforced rubber tire powder and polypropylene composite to apply it in the engine encapsulation of commercial vehicles. We produce a prototype with 20% of rubber tire powder due to its better processability and carry out external noise analysis and the results show it is similar to the already available material and within the limits established by law, besides presenting a substantial 54-weight% decrease. In addition, the material guarantees a minimization of sound pollution - through the attenuation of noise by the composite - and environmental, by the reduction of inappropriate disposal of waste tires.

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The formation of scales in the petroleum industry, such as those composed of calcium and barium sulfates, may reduce productivity since these sediments can partially or totally obstruct the pipes. The mitigation of these inorganic precipitates can be accomplished by using scale inhibitors or by non-intrusive physical technologies. Here, we investigated the influence of magnetic field on the incrustations of barium sulfate by analyzing the concentration of barium and sulfate ions, the solution flow rate, the capillary tube geometry, and the magnetic field intensity in a homemade experimental unit supported on the monitoring of the dynamic differential pressure. The results show that the saline concentration and the flow rate of the solutions and the geometry of the capillary tube have a significant influence on the dynamics of barium sulfate incrustation. The presence of the magnetic field tends to prolong the induction time of the barium sulfate precipitation. A semi-empirical model was used to describe the effect of the studied variables on the barium sulfate incrustation behavior. The X-ray diffraction data of the precipitated particles analyzed using the Rietveld method suggest that the use of the magnetic field favor the formation of more crystalline particles and with smaller crystallite size than those formed in the absence of a magnetic field. Optical and scanning electron microscopy measurements also corroborate with these findings. The results from this study suggest that magnetic fields can be of interest in practical crystallization processes of barium sulfate and successfully applied to decrease the speed of barium sulfate incrustation in pipelines.

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Investigación cualitativa para reconstruir el ethos profesional de la ingeniería civil industrial en Chile desde la subjetividad de sus actores. Se indagó en la experiencia profesional y la construcción de significados respecto de la ética e interculturalidad en su profesión, en un grupo de ingenieros civiles industriales y estudiantes que hubieran realizado su última práctica profesional. Todos los participantes habían estudiado o aún estudiaban en universidades estatales chilenas. La indagación se efectuó mediante entrevistas individuales y grupales a 29 individuos, de las que devengaron 19 textos, analizados mediante la metodología de la Teoría Fundamentada (Grounded Theory). Los resultados permiten aventurar que el ethos de la Ingeniería Civil Industrial en Chile contiene como elemento nuclear la eficiencia y, por ende, la calidad del trabajo en sí misma. Sin embargo, este ethos se presenta tensionado con las aspiraciones por transformarla en una disciplina en la que sus profesionales además actúen conscientes de su responsabilidad social. En este sentido, es posible suponer que se trataría de una profesión en la cual, al menos en Chile, su carácter moral podría estar experimentando un proceso de reconstrucción.

Looking for Industrial Engineering professional ethos reconstruction from its actors’ subjectivity, a qualitative research on professional experience and meaning construction on ethics and interculturality, in Chilean Industrial engineers and students who had already finished their last practicum, is reported. All participants had studied or were still studying in Chilean public universities. Inquiry was performed by means of individual and group interviews which provided 19 texts, afterwards analyzed by means of Grounded Theory procedures. Results allow to adventure that Industrial Engineering ethos, in Chile, had as its nucleus efficiency, and so, tasks quality itself. Nevertheless, this ethos is tensioned with the aspiration to transform this discipline in one whose professionals also would work being conscious of its social responsibility. According to these results, it’s feasible to presume that, at least in Chile, Industrial Engineering is experiencing a reconstruction process in its moral character.

Investigação qualitativa para reconstruir o ethos profissional da engenharia civil industrial no Chile a partir da subjetividade de seus atores. Se indagou a experiência profissional e a construção de significados a respeito da ética e interculturalidade em sua profissão, a um grupo de engenheiros civis industriais e estudantes que tiveram realizado sua última prática profissional. Todos os participantes haviam estudado ou ainda estudavam em universidades estatais chilenas. A indagação se efetuou mediante entrevistas individuais e coletivas a 29 indivíduos, das quais obtiveram 19 textos, analisados mediante a metodologia da Teoria Fundamentada (Grounded Theory). Os resultados permitem aventurar que o ethos da Engenharia Civil Industrial no Chile contém como elemento nuclear a eficiência e, por fim, a qualidade do trabalho em si mesma. Todavia, este ethos se apresenta tensionado com as aspirações por transformá-lo numa disciplina na qual seus profissionais ademais atuem conscientes de sua responsabilidade social. Neste sentido, é possível supor que se trataria de uma profissão na qual, ao menos no Chile, seu caráter moral poderia estar experimentando um processo de reconstrução.

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