ОЦІНЮВАННЯ ГЕОМЕТРИЧНИХ ПАРАМЕТРІВ ПОЛЮСНОЇ СИСТЕМИ МАТРИЦІ ЕЛЕКТРОМАГНІТНОГО СЕПАРАТОРА

Purpose. The choice of the geometric dimensions ratios of system of matrix poles of electromagnetic polygradient separator to increase productivity with maintaining the reliability of extracting of ferromagnetic impurities from bulk material.Methodology. To solve the dynamic problem of motion of a ferromagnetic body in the working gap of pole system of matrix of polygradient separator under the influence of an external magnetic field the known methods of solving linear inhomogeneous differential equations are used. To confirm the reliability of obtained results the method of experimental research is used.Findings. The formulation of dynamic problem of movement of ferromagnetic body in the working gap of plate pole system of matrix of polygradient separator is carried out. Parametric equation for the trajectory of ferromagnetic body removal and a calculated relation connecting the main geometric dimensions of the system of matrix poles are obtained. The calculation results are confirmed experimentally and by operating practice of known magnetic separating devices.Originality. The mathematical description of working process of a polygradient electromagnetic separator with a plate matrix was further developed, which made it possible to obtain an analytical expression that takes into account the main geometric dimensions of the working space of matrix of separator.Practical value. Accounting of obtained analytical dependences between the length of separation zone and air gap, which characterizes the thickness of the separated material layer through which the ferromagnetic body must pass during the separation process, will ensure the necessary purity and productivity of separation.

Optimized Production of Biodiesel Using Internet of Things Sensed Temperature with Hybrid Particle Swarm Optimization

Biofuel production offers a non-fossil fuel that can be utilized in modern engines without any redesign. Regardless of receiving rising attention, many researchers have explored microalgae-based biofuel production and found biodiesel production is cost-effective compared to petroleum-centered conventional fuels. The primary reason is that the lipid accumulation of microalgae is possible. An efficient technique is proposed for optimized biodiesel manufacturing with microalgae through an IoT device with the hybrid particle swarm optimization (HPSO) algorithm for elapsing such drawbacks. First, the component of biodiesel is determined. Then, from the components, the temperature value is sensed through the IoT device. Based on the obtained temperature, the reaction parameters are optimized with HPSO to increase productivity and reduce cost. Finally, we observed performance and comparative analysis. The experimental results contrasted with the existent particle swarm optimization (PSO) and genetic algorithm (GA) concerning iteration’s temperature, concentration, production, and fitness. The present HPSO algorithm has differed from the existing PSO and GA concerning IoT sensed temperature and production function. Fitness value and instance concentration are the performance parameters. It varies based on the iteration values. Thus, the proposed optimized biodiesel production is advanced when weighed down with the top-notch methods.

Eucalyptus Amplifolia and Corymbia Torelliana in the Southeastern USA: Genetic Improvement and Potential Uses

Eucalyptus amplifolia and Corymbia torelliana genetic improvement has been conducted in the lower southeastern USA by UF and collaborators since 1980. The collective accomplishments in genetic resources and potential commercial uses are summarized. For example, fast-growing, freeze-resilient E. amplifolia seeds are provided by 1st and 2nd generation seedling seed orchards (SSO) and a 2nd generation clonal seed orchard (CSO), while C. torelliana seed are available from 1st and 2nd generation SSOs. Breeding values (BV) have been developed for guiding the deployment of improved genotypes. Collaborative genetic improvement of these species is ongoing, including testing E. amplifolia in 11 countries and development of hybrid clones. Short Rotation Woody Crop (SRWC) systems may increase productivity and extend uses beyond conventional mulchwood to products such as medium density fiberboard (MDF), biochar, and energywood, while other possible applications include honey production, windbreaks, dendroremediation, and carbon sequestration. C. torelliana may be paired with E. grandis in two-row windbreaks to maximum windbreak effectiveness and may sequester as much carbon as E. grandis.

The Effectiveness of Automated Sonic Bloom Method in An IoT-Based Hydroponic System

One of the solutions for food security is planting using hydroponic method and to increase productivity and help hydroponic grow faster and facilitate in monitoring hydroponic growth, sonic bloom and Internet of Things (IoT) are two technologies that can be used. However, in previous studies, the two systems have not been interconnected. The aim of this study is to evaluate the effectiveness of the combination of the two systems mentioned, hence creating an automated sonic bloom method in an IoT-based hydroponic system. To test the proposed method, this system is implemented with bok choi as the hydroponic plant using the DFT technique. The automated sonic bloom is embedded to the IoT system with DF Player Mini module, RTC module, and speakers. The evaluation is done by comparing growth parameters and the crop parameters. The results show that the system with sonic bloom produces fresh weight of 0,44-0,56 g and dry weight of 0,21–0,33 g. The mentioned results are superior to the system without sonic bloom, where fresh weight is 0,17–0,25 g and dry weight is 0,08–0,13 g. It can be concluded that the IoT-based sonic bloom system is effective in increasing the growth rate and hydroponic production rate.

Redefining Higher Education and Work

This chapter and book provide the foundation for executives, academic leaders, faculty, and students to analyze the realities of higher education today, strategies that would ensure success of academic institutions, and factors that would lend to student success. In particular, the book addresses essentials of online learning, strategies to ensure success of online degrees and courses, effective course development practices, key support mechanisms for students, and ensuring student success in online degree programs. Furthermore, the book addresses the future of work, preferences of employees, and how work can be redesigned to create further employee satisfaction, engagement, and increase productivity. In particular, the book covers insights that would lend to ensuring remote employees feel valued, included, and are being provided relevant support to thrive in their roles.

Mechanized Placement of Drip Tape in Potato Comb

Over the past two years, decrease in potato yield has been observed in the Moscow region. One of the main reasons is unfavorable weather conditions. To obtain a guaranteed yield, as well as to improve the quality of products, it is necessary to carry out reclamation works, including additional irrigation. Creation of the optimal water - air balance of the plant throughout the entire growing season will increase productivity, and improve the quality of agricultural products. Drip irrigation is the most economical method of irrigation, but its widespread use is hindered by the high proportion of manual labor when installing the drip tape. A mechanized method of laying the drip tape by placing the working equipment on the Grimme GF-75/4 comb former is offered. The existing methods for determining the irrigation rate do not consider the parameters of the humidification circuit, which leads to excessive irrigation and additional losses of irrigation water. The paper offers a method for determining the irrigation rate considering the shape of the humidification circuit and its geometric parameters.

Methodology for choosing a propulsion device for special-purpose vehicles

The ability to move on different types of soils is one of the main indicators of the efficiency of mobile vehicles in off-road conditions. The movement of such special mobile machines is carried out due to the interaction of the propulsion with the support surface. Therefore, significant reserves to increase productivity and reduce the cost of technological and transport works are laid in reducing energy consumption when the engine interacts with the surface. On the process of interaction of the wheel drive with the deformable support surface it is established that the parameters of this interaction depend on a number of factors: normal load, angular velocity and torque. In the General case, the parameters of interaction of each engine change when changing the mode of movement of the wheeled vehicle, and the ability to change the air pressure in the tires when driving on different support surfaces allows to increase the performance of the wheeled vehicle In the study of the caterpillar, it was found that the pitch of the caterpillar, the stiffness of the caterpillar, the angular stiffness of two adjacent tracks, reducing the pitch of the caterpillar chain, reducing the stiffness of the caterpillar, increasing the angular stiffness of two adjacent tracks, affect the efficiency of the machine. The scientific novelty of the study is to develop a method of choosing the engine of a special mobile machine that works off-road, in the process of its design. Wheel or crawler solutions will mainly determine the performance and efficiency of special purpose vehicles. The choice of engine for special mobile machines is based on a set of criteria. The criteria determine the importance of the implementation of the tasks in relation to the efficiency of functioning. Knowing the sowing capacity of the soil, and taking into account the possibility of movement of a particular special mobile machine depending on the type of soil, you can choose one or another type of engine.

The Positive Face of Human Capital, Psychological Capital, and Well-Being

This chapter analyzes the relation between Positive Psychology, Psychological Capital, and Well-Being. Positive psychology pursues information that flourishes on life. Positive psychology improves the quality of life and investigates the paths towards positive individual characteristics and developing communities through actions that increase well-being and prevents discomfort in situations where life is vicious and meaningless. Psychological capital is associated with many positive results for employees and the organization and promises to increase productivity in today's workplace. In this chapter, the transformation of positive psychology into the concept of psychological capital is explained in the field of organizational behavior, and the state of well-being and psychological capital are examined from a theoretical perspective. Besides, it is explained how psychological capital improves employee wellbeing. Psychological capital and well-being are very effective concepts on employee workplace performance, and there are strong relationships between them.

Outsourcing and the strategy of organizations in Mexico

Outsourcing has been a very commonly used strategy to increase productivity in a variety of organizations. In Mexico, it can be said that it has had a positive impact on employment rate. Nevertheless, there is a “dark side” in this strategy, since it has been used as a way to avoid direct hiring of employees and to evade fiscal and social security regulations. This document aims to analyze outsourcing from a regulatory and contractual approach, as well as its role as a way to increase the employment rate, and from a managerial perspective. As a result of this analysis, it was found that in our country outsourcing has been a successfully used strategy by many organizations of different sizes, but at the same time, the lack of an appropriate legislation has originated a series of unethical practices. In Mexico, in 2021 a new legal framework that tries to balance the relationship between firms and employees was approved. This paper ends with a reflection of the possible impacts of this new legislation.

TELEWORKS A REALITY AMONG LECTURERS IN TERTIARY INSTITUTIONS IN NIGERIA

Information Communication Technology-based practices have given rise to flexible work arrangements, such as flextime and telecommuting, which increase the amount of autonomy that employees have in their work. The increase in the use of ICTs and technological improvements enabled the development of telework. The study,x-rayed the effect of telework on the performance of tertiary institutions in Nigeria.Descriptive design was adopted and the sample of 39 respondents was drawn from the target population of 16203. Data were analyzed using Pearson product-moment correlation coefficient. The findings revealed that there is a positive and significant relationship between home-based telework and supervision of students by university lecturers in Nigeria. Also, a positiverelationship exists between occasional telework and lecture delivery by university lecturers in Nigeria. The study recommended that management of various tertiary institutions should provide their workers with necessary facilities that will aid home-based teleworks, to increase productivity and ensure improved work quality.