Galvanic pH sensor for continuous monitoring of soil parameters in agriculture

The article discusses trends in agriculture development in digitalization direction, substantiates need for monitoring pH level throughout year. The main solutions existing on market at moment are given, as well as need to develop a pH sensor for USKD-Agro hardware and software complex. The article discusses in detail the ongoing physical and chemical processes, on them basis pH level is determined, circuitry solutions used, as well as pH sensor implementation. The article describes the sensor calibration process, methodology and test results.

Methodical Approach to Evaluation of Efficiency of Transformation of Business Processes on Engineering Enterprises in the Context of Ensuring Security

The main purpose of the study is the formation the methodological approach to assessing the options for transforming of the main business process in the context of ensuring security. The study is based on the assessment results of several of leading engineering enterprises. The methodology of estimation of efficiency of carrying out transformation of the basic business processes of the enterprises, based on the theory of fuzzy sets, is a convenient means of carrying out multicriteria evaluation, comparative analysis from the point of view of integrated criterion and obtaining orderly priority of business processes on their efficiency. The study of the process of transformation of a business process for the production and sale of product enterprises was conducted and a methodology for assessing its effectiveness based on the use of the mathematical apparatus of the theory of fuzzy sets was formed and allows us to formalize and evaluate the effectiveness of the implementation of each of the options for the business process. Methodology for assessing the effectiveness of the transformation of the main business processes at the enterprises can be used in enterprises of various profiles after the necessary analysis and optimization. The study conducted a comprehensive assessment of the effectiveness of the transformation of the main business processes at the enterprises using as example engineering enterprises in the context of ensuring security.

ELECTROLYTIC EFFECT ON GROWTH OF GRAPHENE QUANTUM DOTS VIA ELECTROCHEMICAL PROCESS

Quantum dots (QDs) are materials grown in confined dimension also known as 0D materials. QDs can be synthesized in many shapes and forms through various methods making the materials extremely versatile and can be fine-tuned for appropriate applications. Among the potentially scalable methods, Electrochemical process is considered as one of the top-down approaches with the highest potential for scalability and easy-to-process methodology while electrolyte and pH level can play various important roles on the final product. In this work, we grew and studied the effect of electrolytic solution in the growth of graphene quantum dots (GQDs) in colloidal forms using cheap graphite as precursor in KCl and NaOH as electrolytes in various concentrations. It can be inferred from our results that when KCl and NaOH were used in combination with citric acid, the optoelectrical properties and hydrodynamic properties of the resulting growth can be fine-tuned to match the required applications. [Formula: see text] electronics excitation was identified with small tunability of 487–500[Formula: see text]nm wavelength while the hydrodynamic size varied from 80–140[Formula: see text]nm with resulting pH range from 3.0–9.5 adjustable to appropriate applications, while the TEM results showed physical particle size of 1.7–3.7[Formula: see text]nm.

Object-Process Methodology as an Alternative to Human Factors Task Analysis

Objective We define and demonstrate the use of OPM-TA—a model-based task analysis (TA) framework that uses object-process methodology (OPM) ISO 19450 as a viable alternative to traditional TA techniques. Background A variety of different TA methods exist in human factors engineering, and several of them are often applied successively for a broad task representation, making it difficult to follow. Method Using OPM-TA, we modeled how an International Space Station (ISS) astronaut would support extravehicular activities using the existing robotic arm workstation with a new control panel and an electronic procedure system. The modeling employed traditional TA methods and the new OPM-TA approach, enabling a comparison between them. Results While the initial stages of modeling with OPM-TA follow those of traditional TA, OPM-TA modeling yields an executable and logically verifiable model of the entire human–robot system. Both OPM’s hierarchical set of diagrams and the equivalent, automatically generated statements in a subset of natural language text specify how objects and processes relate to each other at increasingly detailed levels. The graphic and textual OPM modalities specify the system’s architecture, which enables its function and benefits its users. To verify the model logical correctness model, we executed it using OPM’s simulation capability. Conclusion OPM-TA was able to unify traditional TA methods and expand their capabilities. The formal yet intuitive OPM-TA approach fuses and extends traditional TA methods, which are not amenable to simulation. It therefore can potentially become a widely used means for TA and human–machine procedure development and testing.

Evaluation of Ergonomics-Related Disorders in Online Education Using Fuzzy AHP

The aim of the presented work is to analyze the ergonomics-related disorders in online education using the fuzzy AHP approach. A group dialogue with online education academicians, online education students, biotechnologists, and sedentary computer users has been performed to spot ergonomics-related disorders in online education. Totally eight ergonomics-related disorders in online education have been identified, and the weight of each disorder has been computed with triangle-shaped fuzzy numbers in pairwise comparison. Furthermore, the ergonomics-related disorders in online education are kept in four major categories such as afflictive disorders, specific disorders, psychosocial disorders, and chronic disorders. These four categories of ergonomics-related disorders in online education are evaluated and compared using fuzzy analytical hierarchical process methodology to get ranked in terms of priorities. The results may be instrumental for taking appropriate corrective actions to prevent ergonomics-related disorders.

Identification of Employees' Preferences for Health and Wellness Programmes

Today's workplace has created new challenges and opportunities for managers, as employees from three generations (Millennials, Generation X and Baby boomers) with different personal characteristics now form the workforce. It is crucial for a company's management to understand employees' needs regarding benefits, since employees' satisfaction is vital to their motivation and productivity. In this study, we analysed responses from 272 employees to a survey about their preferences for Health & Wellness programmes, using the Analytical Hierarchy Process methodology. The results reveal significant differences between generations, as well as between genders. The most desired programmes for younger generations are educational packages, whereas Baby boomers tend to prefer cultural events. Despite these differences, there is consensus among all the generations about the high importance of dental care programmes.

Experimental Analysis of Abrasive Diamond Tool Wear and their Cutting Force in Stone Machining Process

Stone machining with a diamond tool is a common procedure for producing both standard items and design shapes, such as tiles, slabs and so on. During the entire deep sawing process of a granite work piece with finite length cutting procedure in stone processing, force components acted on the saw-blade. The work is split into two parts: theoretical and practical. The theoretical section discusses the features of diamond blades, cutting process methodology, and stone mining and processing methods. The practical portion of the project focuses on the wear of diamond blades when cutting stone, notably granite. The overall weight of the cutting blade and the loss of tooth height as a function of time are used to determine blade wear for two cutting blades from different manufacturers. There is a linear relationship between the two measured values. The findings serve as the foundation for a cost-benefit analysis of both diamond wheels.

INFORMATION SYSTEM DESIGN OF SHAHIRAH RAHMAWATI DENTIST'S PRACTICE BASED ON WEB AND SMS GATEWAY USING THE RATIONAL UNIFIED PROCESS METHODOLOGY

Dental practices is one of the services in the field of Health has already managed independently, so it is required to provide the best service to the society with good management. In good management, it does not need to be done repeatedly, for example, nurses or employees check, store, or search for medical records manually even though only on the same variable. In the dental practice of Shahirah Rahmawati, appointments are still made by telephone and recorded on paper so it is less effective and less practical. The recording of dental medical records and medicines are also done manually. So that why the research doing to design an information system using an object-oriented approach. On the whole process, from input data, and presentation of reports aims to make easy for users and to schedule regular patient visits using SMS Gateway.