AbsorbanceQ: An App for Generating Absorbance Images from Brightfield Images

The AbsorbanceQ app converts brightfield microscope images into absorbance images that can be analyzed and compared across different operators, microscopes, and time. Because absorbance-based measurements are comparable across these parameters, they are useful when the aim is to manufacture biotherapeutics with consistent quality. AbsorbanceQ will be of value to those who want to capture quantitative absorbance images of cells. The AbsorbanceQ app has two modes - a single image processing mode and a batch processing mode for multiple images. Instructions for using the app are given on the ‘App Information’ tab when the app is opened. The input and output images for the app have been defined, and synthetic images were used to validate that the output images are correct. This article provides a description of how to use the app, software specifications, a description of how the app works, instructive advice on how to use the tools and a description of the methods used to generate the software. In addition, links are provided to a website where the app and test images are deployed.

MATHEMATICAL MODELS OF COATING PROPERTIES UNDER DIFFERENT TECHNOLOGICAL MODES OF PEO

The issue of mathematical modeling of the coating thickness, current and corrosion potential depending on the type of pulsed electrical processing mode, pulse frequency and processing duration is considered.

ON-LINE LUMINESCENT DOSIMETRY OF PRODUCT PROCESSING MODE AT AN ELECTRON LINAC

Radiation-technological processes on the basis of electron accelerators, in particular, sterilization of medical de-vices, are regulated by international standards. The distribution of the electron flux density and absorbed dose are the main parameters of such processes, that require constant monitoring. In this work, we investigated the possibil-ity to determine in real time the absorbed dose profile on the surface of an object processed using the effect of ca-thodoluminescence, that occurs when the electron flux acts on technical materials (mainly amorphous dielectrics). The results of calibration of the cathodoluminescent radiators of different composition against the absorbed dose measured by a calorimetric method are presented. The study of the novel technique at an LU-10 electron Linac of NSC KIPT made it possible to identify the sources of uncertainty and evaluate their contribution to the dose meas-urement.

Formation and optimization of costs of production fishing activity of vessels

В работе рассмотрен процесс формирования производственных издержек в трех различных сценариях промысловой обстановки, описаны издержки, возникающие в каждом из сценариев. Выполнена оценка вероятности наступления того или иного сценария промысловой обстановки. Сформулирован подход к определению средневзвешенных издержек судна. Сформулирован подход для определения средневзвешенного улова судна на основании многолетних данных о добыче промыслового объекта. Данная оценка может быть использована при планировании работы добывающего судна. Полученные значения средневзвешенных затрат подсистем «добыча» и «обработка» производственного процесса на добывающем судне, а также средневзвешенное значение суточного вылова использованы в задаче оптимизации режима обработки суточного вылова с условием минимизации затрат. Приведен пример расчет среднесуточного вылова и решение оптимизационной задачи для промыслового объекта сардина иваси. The paper considers the process of forming production costs in three different scenarios of the fishing situation, describes the costs arising in each of the scenarios. The probability of occurrence of a particular scenario of the fishing situation is estimated. An approach to determining the weighted average costs of a vessel is formulated. An approach is formulated to determine the weighted average catch of a vessel based on long-term data on the production of a fishing object. This assessment can be used when planning the operation of a mining vessel. The obtained values of the weighted average costs of the subsystems "production" and "processing" of the production process on the producing vessel, as well as the weighted average value of the daily catch, are used in the task of optimizing the processing mode of the daily catch with the condition of minimizing costs. An example is given of calculating the average daily catch and solving the optimization problem for the sardine ivasi fishing object.

Modeling of complex structured processes using discrete iterative networks and petri nets

The paper considers the use of discrete iterative networks and Petri nets in the modeling of complex structured processes. In general, the production process is represented as a composition of machines. Probabilistic finite machine are modeled to select optimal solutions from a certain set of alternative solutions. Alphabets of finite and probabilistic machines are formed on the basis of discrete optimization methods when modeling multi-stage productions. The processing mode adaptation block is used to change the alphabets when the production conditions are changed. Using the alphabet generation block allows you to choose the optimal value of the alphabets of the random variables under study. During modeling complex systems and developing algorithms for managing them, the presence of ambiguous functional relationships between factors and quality indicators is taken into account. Methods of modeling complex spatially distributed objects based on a hierarchy of machines belonging to a predetermined finite number of machine types using iterative networks and Petri nets are described.

Formation of a silicon-niobium-based surface alloy using electron-ion-plasma surface engineering

The results of the development and study of the modes of formation of a surface alloy based on silicon and niobium on steel 40X using electron-ion-plasma engineering of the surface are presented. The surface alloy was created in several stages: first, layers of silicon and niobium were deposited successively, and then electron-beam remelting of the surface took place. After that, the samples were subjected to nitriding. The dependences of the change in the surface hardness of the samples on the processing modes are shown. In the optimal processing mode, the surface hardness increased by almost 70 times compared to the original material.

Determination of the endurance limit of the surface layer of a part after processing with a blade tool

The dependences of the quality indicators of the surface layer of parts on the fatigue strength are analyzed. The dependences are given, taking into account both the quality indicators of the surface layer of the part after processing with the blade tool, and the parameters of the processing mode. Keywords: surface layer, surface roughness, residual stresses, work-hardening depth, endurance limit, blade tool processing. [email protected]

Controlling Mini Exhaust Fan through Android-Based Smartphone for IoT-Based Smart Home System

In this work, we present a control system for a mini electrical fan. The aim of this work is to design a controller prototype for an electrical fan within the smart home system. The system consists of an STM32L100 microcontroller for controlling the electrical fan using pulse-width modulation (PWM), TIP 102 BJT transistor for ‘off,’ and ‘on’ control of the fan, and 1N4007 fly-back diode. The PWM is generated by the STM32L100 microcontroller to control the Fan’s speed softly (25%, 50%, 75%, and 0% - 100% of speed). In addition, the system is equipped with a ZigBee module to support wireless communication with the host, which is required to receive and process commands from the Android application used for the user interface. Moreover, with the Zigbee module, the fan device enables be integrated wirelessly with other end devices in a smart home environment through a network (e.g., Mesh topology). Based on the testing performed, the system can work as intended, it can be controlled easily using Android smartphone and its speed, with the currents of 43.1 mA (idle mode) and 145.1 mA (processing mode) powered by 12 VDC.