(Видавництво Львівської політехніки, 2020-02-24) Tchaban, Vasil; Lviv Polytechnic National University
Nowadays, the function of the law of interaction of moving charged bodies has been taken over entirely by the
theory of relativity, being covered by a pseudo slogan about the inability of Galileo transformations. In contrast, the article adapts
Coulomb’s law in the case of moving charges in all possible speeds in the usual three-dimensional Euclidean space and physical
time. This takes into account the finite speed of propagation of the electric field and the law of conservation of the charge.
On this basis, the dynamics of the free motion of an electron in a non-uniform electric field are simulated. For qualitative
and quantitative evaluations of the manifestation of the relativistic effect on the dynamics of motion, the duplicate time functions
of velocities and coordinates obtained by classical Coulomb’s law are given. Electromechanical analogies of electric and
gravitational fields have been made.
(Видавництво Львівської політехніки, 2020-02-24) Ishchenko, Liubomyr; Baran, Mariana; Lviv Polytechnic National University
Nowadays, digital technologies are successful in many areas substantially facilitating the lives of
people. Different kinds of computers with special software are applied to manage devices. But the choice of an
appropriate program is quite difficult. There the certain error not predicted previously at the stage of the software
development may arise. For debugging this type of application, the physical device is needed. The latter may not be
available due to its usage by other specialists. To solve such problems, the emulators that simulate the work of a
particular system are developed. An article presents the problem of operating the control program multifunction gainphase
analyzer of Clarke Hess 2505 with calibrating coil system. The development strategy for its debugging is
created and an emulator for debugging the gain-phase analyzer control program is implemented. It allows the leading
engineer to establish the program operation, stability, and resistance to various problems.
(Видавництво Львівської політехніки, 2020-02-24) Yatsyshyn, Svyatoslav; Lazarenko, Sergii; Lazarenko, Nadiya; Lviv Polytechnic National University
The specific of metrological support for different types of dosemeters are considered. Gamma-ray sensors are
commonly used for measuring radiation doses as also the fluid levels in the industry. Typically, the 60Co or 137Cs isotopes as the
radiation source are applied. For instance, in the USA, such detectors are beginning to be used as part of the Container Security
Initiative . Problems of their metrological assurance are becoming more general. They require the development of metrological
support. There are conducted researches of calibration, metrological verification, and determination of the sensitivity of gammaray dosemeters, based on the joint application of installations equipped with ionizing radiation sources and of X-ray installations.
The implementation of the Program of Integration of Ukraine into the European Union requires harmonization of
Ukrainian and International standards, in the field of metrological assurance of means for measuring the characteristics of ionizing
radiation including. Recently, several regulatory, methodological documents and issues have been published. They concern the
dosimetric measurement of gamma-ray characteristics in the field of radiation safety, diagnostics, and therapy.
(Видавництво Львівської політехніки, 2020-02-24) Rak, Volodymyr; Yatsyshyn, Svyatoslav; Baitsar, Roman; Lviv Polytechnic National University
Sensors with a frequency output signal are marked as particularly high accuracy, it is easy to switch, and signals
may be transmitted over long distances. The main element of such sensors is an electromechanical oscillator connected to the
feedback of the autogenerator. String metal oscillators do not provide the required measurement accuracy due to unsatisfactory
elasticity, hysteresis, relaxation, and drift of characterisrics. The creation of oscillators made of quartz and silicon due to the
perfection of these materials, is difficult. Tere exist the technological problems and problems of conjugation of temperature
coefficients of materials expansion. It is proposed a quartz sensor without an oscillator, made from the quartz and equipped by
(Видавництво Львівської політехніки, 2020-02-24) Sydorko, Ihor; Baitsar, Roman; SE “Lviv Scientific and Production Center for Standardization, Metrology, and Certification”; Lviv Polytechnic National University
Adopting socially responsible management practices of the organization promotes greater awareness in
decisionmaking, based on a better understanding of society’s expectations, anticipation of risks, and opportunities. Responsible
management of an organization can improve its relationships with stakeholders. Encouraging compliance with regulatory
obligations leads to decisions that are more likely to gain the support and trust of those who implement them and who they
influence. The result can be improved risk management practices and improved reputation.
The concept of “risk” today has a fairly broad meaning and is used in completely different contexts. Synonyms of risk can
be such concepts as “danger”, “threat”, “trouble”, etc. However, in many definitions of risk in the scientific literature, this term is
used in a special sense, where risk is associated primarily with the concept of uncertainty. Therefore, the risk is understood as
uncertainty, which can result in one or another adverse event. Clinical risks – risks that arise directly from the provision of medical
care. These include clinical errors and negligence, infections in medical care, and non-consent.
The principles of risk management and the need to use them are effectively applied in many areas of economic activity and
public administration, including health care, as well as institutions that provide regulatory activities in these areas, including
clinical diagnostic laboratories. Today, prevention as management of patient quality of health has become a dominant part of
medicine, where laboratory diagnostics, which can detect the risks of many diseases, is not the least important. The presence in the
health care system of only certain fragments of activity risk necessitates the formation of an overwhelming majority of an effective
integrated risk management system, which must comply with certain requirements and principles: determining the characteristics
of the system; optimization of the risk management model of medical structures; substantiation of prerequisites for the introduction
of a comprehensive medical risk management system and evaluation of the effectiveness of its operation.
(Видавництво Львівської політехніки, 2020-02-24) Midyk, Andrii-Volodymyr; Lysa, Olha; Lviv Polytechnic National University; Lviv National Agrarian University
The main information parameters of the microclimate of greenhouse premises are substantiated, in particular: air
temperature, relative humidity, illumination of greenhouse premises, soil temperature, soil humidity, the concentration of carbon
dioxide. The cyber-physical system for vegetables’ cultivation with the regulation of temperature-humidity-insolation regime
contains three subsystems, namely the subsystem of temperature control, the subsystem of humidity control, and the subsystem of
insolation control. Accordingly, each of them is equipped with a conjugated smart sensor and a smart actuator. As a result, the
choice of smart sensors and their location in the greenhouse is considered. CPS’s model has been performed and tested. To assess
the uniformity of the temperature in the greenhouse and the points of the sensor's location, the temperature and humidity were
measured previously. The defined set of their values were maintained while the CPS’ operation.