Research Regarding the Anticorosiv Protection of Atmospheric and Vacuum Distillation Unit that Process Crude Oil

Due to high boiling temperature, organic acids are present in the warmer areas of metal equipment from atmospheric and vacuum distillation units and determine, increased corrosion processes in furnace tubes, transfer lines, metal equipment within the distillation columns etc. In order to protect the corrosion of metal equipment from atmospheric and vacuum distillation units, against acids, de authors researched solution which integrates corrosion inhibitors and selecting materials for equipment construction. For this purpose, we tested the inhibitor PET 1441, which has dialchilfosfat in his composition and inhibitor based on phosphate ester. In this case, to the metal surface forms a complex phosphorous that forms of high temperature and high fluid speed. In order to form the passive layer and to achieve a 90% protection, we initially insert a shock dose, and in order to ensure further protection there is used a dose of 20 ppm. The check of anticorrosion protection namely the inhibition efficiency is achieved by testing samples made from steel different

Increasing the Creativity of ENGINO Toy Sets and Generating Automatic Building Instructions

During the First Study Group with Industry which was held in Limassol, Cyprus, the ENGINO⃝R TOY SYSTEM introduced two challenging problems. The first is to get bounds on the number of possible models/toys which can be constructed using a given package of building blocks. And the second is to generate automatically the assembly instructions for a given toy. In this report we summarize our insights and provide preliminary results for the two challenges

Tackling transition:the value of peer mentoring

This paper is aimed at those interested in the promotion of student retention in higher education; particularly those with an interest in peer mentoring as a means of student support. It critically discusses the results of an exploratory study analysing the perceptions of peer mentors and mentees within five universities in the United Kingdom. The aim of the study was to analyse how student peer mentoring can aid transition into university by focusing specifically on how senior students can support their junior counterparts in their first year at university. The paper discusses the results of a survey which was completed by 329 student peer mentors and mentees. Focusing on the benefits and outcomes of participation in Mentoring Programmes, the survey was distinctive in that it asked mentors and mentees similar questions. From a theoretical perspective, the paper contributes to debates about peer support in higher education showing that participation in such programmes can have positive outcomes from both social and pedagogic perspectives. Practically speaking, the results have important implications for Higher Education Institutions as the research highlights the importance of putting into place formally structured Peer Mentoring Programmes which facilitate student support at a time when new students are most at risk of ‘dropping out’

Nonlinear monotone boundary conditions for parabolic equations

In questo lavoro viene trattato il problema (0.1) - (0.3), con l operatore monotono. I principali risultati sono contenuti nei teoremi concernenti resistenza, l’unicità, regolarità e comportamento asintotico delle soluzioni.This paper is handling problem (0.1) - (0.3) with I a monotone operator. The main results are contained in the theorems concerning existence, uniqueness, regularity and asymptotic behaviour of the solutions

Unintentional injuries trends in Georgia 2010-2021.

Background: Unintentional injuries are the 4th cause of death in the US, with 61 deaths reported per 100,000 people in 2020 (CDC, 2022). Major contributors to unintentional injury deaths are motor vehicle accidents, drug overdose, and falls (Olaisen et al., 2019). National data indicate a 40% rate increase between 1999 and 2017. Rural residents have higher rates compared to urban residents. We analyzed unintentional injury data for Georgia and compared rates across rural/urban location, race groups, gender, and age-groups between 2010 and 2021. Methods: Data were downloaded from the Online Analytical and Statistical Analysis System database of the Georgia Public Health Association, and analyzed with IBM SPSS 27. Findings: Preliminary data analysis indicate that national trends are true for Georgia as well. Unintentional injuries increased over time from 32.0 in 2010 to 53.4 in 2021 and were highest for White, Males and Females aged up to 44 years old. Importance for public health: Unintentional injury deaths contribute towards lowering life expectancy (Martínez-Alés et al., 2022), and remain the largest preventable cause of death. Prevention efforts should focus on population groups with the highest rates of unintentional injury

Quantification of toxic metals during different winemaking stages

Heavy metals in beverages can constitute serious problems to human health. Consumption of wine may contribute to the daily dietary intake of pollutants, especially of toxic (heavy) metals. These compounds are also known as priority pollutants due to their potential toxic effects, if concentrations are not kept under allowable limits. Many characteristics such as: quality, origin, aroma and health safety of wine are influenced by environmental and anthropogenic factors. Hence, the contamination of wine by priority pollutants may occur at different stages of vine-growing, due to the application of agricultural chemicals, or at different stage of winemaking and ageing, because of the extended contact of wine with winemaking equipment materials (aluminium, brass, glass, stainless steel and wood, etc.), or chemicals used for cleaning and sanitation. The aim of this study is to identify and quantify the heavy metal ions from red wines. A particular focus was attributed to Zn and Cd from destemming-pressing-filtration-bottling stages in Fetească neagră grape variety from Cotnari vine growing region of Romania. Results indicated that heavy metals were linked to diverse Zn and Cd sources and complexes during the winemaking processes. Concentration of Zn and Cd were generally higher in must than in wine, although heavy metals concentrations were lower than the limits recommended by the International Organization of Vine and Wine for human health safety