Automatic control of the physical and mechanical properties of the raw sand‑clay molding mixture in the process of mixture preparation in the new developments of OJSC “BELNIILIT”

OJSC “BELNIILIT” specialists have developed a method and an automatic device for monitoring and managing the quality of raw sand‑clay molding blend, which is based on the integrated control – compaction of the molding blend principles, measurement of humidity and strength in the raw state, measurement of temperature directly in the process of mixture preparation. The equipment is integrated into existing automated mixture preparation complexes manufactured by OJSC “BELNIILIT”, it is possible to install on old design mixers.

OMPARATIVE ASSESSMENT OF THE TIME-BASED PARAMETERS OF COWS’ LACTATION PERFORMANCE WITH THE USE OF AN AUTOMATIC DEVICE

Проведена сравнительная оценка времени пребывания коров-первотелок в доильном боксе с минимальной, максимальной и средней продолжительностью молоковыведения из всех четвертей вымени высоко- и низкопродуктивных при доении на автоматической установке «Astronaut A». У высокопродуктивных животных по сравнению с низкопродуктивными установлено увеличение длительности исследуемых четырех периодов молоковыведения на 34,5—60,6%. Между изученными временными параметрами молоковыведения выявлена тесная взаимосвязь (r=0,69-0,98; P<0,001). Выведено уравнение регрессии между периодом доения, рассчитанного путем определения максимальной продолжительности выдаивания одной из четвертей вымени, и средней продолжительностью молоковыведения из всех четвертей вымени (r=0,96; P<0,001). Установлено, что доля технологических операций, не связанных с процессом молоковыведения, составляет 24,1—31,6% от длительности периода пребывания в доильном боксе. Показана возможность использования для оценки интенсивности молоковыведения на автоматической установке «Astronaut A4» наряду с продолжительностью пребывания коровы в доильном боксе показателей максимальной и минимальной продолжительности молоковыведения из одной четверти вымени, а также средней продолжительности молоковыведения из всех четвертей вымени у высоко- и низкопродуктивных коров. Comparative assessment of the time of stay of first-calf cows in a milking box with minimum, maximum, and average duration of milk production from all udder quarters with high and low productivity when milked using the Astronaut A automatic device was carried out. When compared to low-productive animals, high-productive ones showed the increase in duration of the studied milk production periods by 34.5—60.6%. Close relationship between the time-based parameters of milk production was established (r=0.69-0.98; P<0.001). Equation of regression between the milking period, calculated by determining the maximum milking duration of one of the four udder quarters, and the average duration of milk production from all four udder quarters (r=0.96; P<0.001) was derived. It was established that the share of technological operations not connected to milk production process amounts to 24.1—31.6% from the duration of stay in the milking box. The possibility for using the parameters of maximum and minimal duration of milk production from one of udder quarters, as well as the average duration of milk production from all four quarters of the udder in high- and low-productive cows along with the length of cow’s stay in the milking box for the evaluation of milk production intensity using the Astronaut A4 automatic device was shown.

Automatic device for remote measuring of circularity: Development and implementation in education courses

In conjunction with the development of technology, teaching in educational institutions around the world has also changed from traditional teaching, where blackboards and chalk were used, to modern teaching with blended or completely online learning environments. Online teaching became a necessity over the past year as the COVID-19 pandemic occurred throughout the world. One of the biggest problems that arose was the impossibility of students to work with equipment on the spot during laboratory exercises. In turn, many universities have used labs with physical devices that can be launched remotely through the Internet from anywhere. One such device is presented in this paper. An automatic device for the remote measurement of geometric tolerances, circularity, was developed and applied in the teaching process at the University of Novi Sad. The exercises were performed by students who remotely started and controlled the device and measured the deviation of the actual from the defined diameter of the work piece in the desired cross section. At the end of the semester, students completed an evaluation questionnaire and expressed satisfaction with the implementation of this exercise.

The effect of the addition of granite powder to the primer on the pull-off strength of epoxy resin coatings

This article describes the effect of adding waste granite powder to the epoxy resin layer on its pull-off strength. The substrate was C30 / 37 concrete. The priming resin was modified with 10%, 20%, 30%, 40%, 50%, and 60% of granite powder. For control purposes, a sample was also made without the addition of powder. For each material configuration, four strength tests were carried out with the use of an automatic device recording both the pull-off strength and the measurement time. The obtained results were compared with the control sample. The best result in the test was obtained with the addition of 20%, which gave an increase of 19% compared to the reference sample. An equally good result was obtained with the addition of 10% granite powder (increase by 11%). The addition of a larger amount of the additive resulted in a decrease or a slight increase in the pull-off strength compared to the reference sample. Additionally, the additive has been found to darken the coating, and the coating becomes completely opaque when added above 50%.

An Efficient Watermarking Based Matrix Manipulation and Optimization Based Cryptographic Method for Privacy Preservation in Biomedical Data

The biomedical processing of images is an important aspect of the modern medicine field and has an immense influence on the modern world. Automatic device assisted systems are immensely useful in order to diagnose biomedical images easily, accurately and effectively. Remote health care systems allow medical professionals and patients to work from different locations. In addition, expert advice on a patient can be received within a prescribed period of time from a specialist in a foreign country or in a remote area. Digital biomedical images must be transmitted over the network in remote healthcare systems. But the delivery of the biomedical goods entails many security challenges. Patient privacy must be protected by ensuring that images are secure from unwanted access. Furthermore, it must be effectively maintained so that nothing will affect the content of biomedical images. In certain instances, data manipulation can yield dramatic effects. A biomedical image safety method was suggested in this work. The suggested method will initially be used to construct a binary pixel encoding matrix and then to adjust matrix with the use of decimation mutation DNA watermarking principle. Afterwards to defend the sub keys couple privacy which was considered over the logical uplift utilization of tent maps and purpose. As acknowledged by chaotic (C-function) development, the security was investigated similar to transmission in addition to uncertainty. Depending on the preliminary circumstances, various numbers of random were generated intended for every map as of chaotic maps. An algorithm of Multi scale grasshopper optimization resource with correlation coefficient fitness function and PSNR was projected for choosing the optimal public key and secret key of system over random numbers. For choosing the validation process of optimization is to formulate novel model more relative stable to the conventional approach. In conclusion, the considered suggested findings were contrasted with current approaches protection that was appear to be successful extremely.

Application Of Appropriate Technology For Automatic Bird Pest Removal And Automatic Fish Feed In The Minapadi System In Beutong Nagan Raya District

The purpose of this research-based service program is to apply the research results of the proposing team's research for community empowerment. The application of the research results was carried out on the program of application of appropriate technology for automatic fish feed and automatic bird repellent on the Minapadi jajar legowo system which is a system of planting rice with fish cultivation in one rice field area simultaneously and the jajar legowo planting system with a spacing of 25 cm . The technology used is automatic feeding and automatic bird repellent. Automatic feeding is done by using a mini water pump that has been modified with the help of a digital timer so that the feed automatically dispenses the feed at the time we specify, which is 3 times a day. The second technology is automatic bird repellent using extracts of herbal ingredients (jengkol) with the help of an automatic sprayer. This technology aims to increase the income of farmers with high productivity of rice yields and increase local fish production. The activity was carried out for 5 months in Beutong Nagan Raya District. The observed results include the feed that comes out of the automatic device as much as 15 gr/second, adjusted for the number and weight of fish. Meanwhile, the air pollution that comes out every 10 minutes is 5 units in a 25m2 plot.

Sympathetic Neural Mechanisms Underlying Attended and Unattended Blood Pressure Measurement

Whether blood pressure (BP) values differ when BP is measured with or without the presence of a doctor (attended and unattended BP measurements) is controversial, and no information exists on whether and to what extent neurogenic mechanisms participate at the possible BP differences between these measurements. In this study, we assessed continuous beat-to-beat finger systolic BP and diastolic BP, heart rate, muscle, and skin sympathetic nerve traffic (microneurography) before and during BP measurement by an automatic device in the presence or absence of a doctor. This was done in 18 untreated mild-to-moderate essential hypertensive patients (age, 40.2±2.8 years, mean±SEM). During attended BP measurement, there was an increase in systolic BP, diastolic BP, heart rate, and skin sympathetic nerve traffic and a muscle sympathetic nerve traffic decrease, the peak changes being +5.3%,+8.4%,+9.4%,+30.9%, and −15.2%, respectively ( P <0.05 for all). In contrast, during unattended BP measurement, systolic BP, diastolic BP, heart rate, and skin sympathetic nerve traffic were modestly, albeit in most instances significantly, reduced, whereas muscle sympathetic nerve traffic remained almost unchanged. During unattended BP measurement, peak systolic BP was 14.1 mm Hg lower, peak heart rate was 10.6 bpm lower, and peak skin sympathetic nerve traffic was 8.5 bursts/min lower than the peak values detected during attended BP measurement. Thus the cardiovascular and neural sympathetic responses to the alerting reaction elicited by BP measurement in the presence of a doctor are almost absent during unattended BP measurement, during which, if anything, a modest cardiovascular sympathoinhibition occurs. This has important implications for comparison of studies using these different BP measurement approaches as well as for decision concerning threshold and target BP values for treatment.