The Lost Fresco Paintings of the Inkerman Cave Churches (“Temple with Baptistery”, “Church of Geography”, Monastery of Saint Sophia)

Introduction. Among the “cave towns” of Mountainous Southwestern Crimea, there are monuments located in the lower reaches of the Black River valley. There are no less than 9 rock-cut monastic complexes which include about 30 temples. Methods. Some churches of the 13th–15th centuries were decorated with fresco paintings. Today, frescoes have been preserved only in one church. Sources of the 18th–20th centuries indicate traces of paintings in more than five temples. Frescoes inside the “temple with baptistery”, “Church of Geography (Eugraphy)”, and the Monastery of St. Sophia have not survived. Archival materials that expose the plots and compositions are published in this work. Analysis. The frescoes of the “temple with baptistery” date back to the 13th century. The Deesis composition is reconstructed in the apse conch. In the “Church of Geography (Eugraphy)” (the 13th century), on each side of the throne, four figures of saints are depicted (The Holy Fathers composition). This is probably: John Chrysostom, Gregory the Theologian, Basil the Great, Cyril of Alexandria, Gregory of Nyssa, Athanasius of Alexandria and two more saints from among the Cappadocian Fathers. One of them is obviously St. Blaise. This painting in general terms repeats the traditional scheme of the lower register of the painting of the apses of the cave temples of the mountainous Crimea. The monastery of St. Sofia should be dated back to the 14th–15th centuries. During the period of the monastery’s functioning, there were fresco paintings in the Main Church and Church no. 3, but all the attempts to attribute them were unsuccessful. Results. The analyzed frescoes show themes of Deesis and the Great Cappadocians. They are common for altar compositions in cave temples in South-West Crimea. In the interiors of the cave temples of Inkerman, there are: simple linear ornaments, complex plant reports, linear ornaments with complex weaving and plant elements.

Detection of Incoherent Signal In Molecular Communication Based on Channel Impulse Response

In order to solve the problem of intercode interference (ISI) and background noise caused by molecular diffusion in molecular communication, Honda analyzed and studied four methods to resist ISI signal, and analyzed the characteristics of the received signal at the moment. A reliable incoherent molecular signal detection algorithm independent of channel impulse response (CIR) is proposed, and an adaptive threshold calculation method is designed, and the theoretical value of bit error rate (BER) is given. The simulation results show that the proposed scheme BER is lower than the traditional scheme BER under the same computational complexity, so it has a wide application prospect in the nanoscale molecular communication system with limited computing power.

Immune status of piglets after administration of Iron(IV) clatrochelate to pregnant sows

The degree of the physiological development of the body of piglets in the first months after birth is important because, during this period, there is an active formation of many organism systems, including those that provide homeostasis. The resistance of piglets to diseases of various etiologies during life depends on the formation of the immune system. Our study aimed to assess the immune status of piglets born to sows that received injections of solutions of Iron(IV) clatrochelate and cyanocobalamin during pregnancy. To achieve this goal, two groups of newborn piglets-analogs were formed during their retention with suckling sows – control and experimental, 15 animals each. Piglets from 5 sows (3 from each) were injected into the experimental group, which were injected 10 ml of 10 % solution of Iron(IV) clatrochelate and cyanocobalamin solution twice during pregnancy (14 and 7 days before the expected farrowing) intramuscularly. Piglets of the control group, according to the traditional scheme of prevention of iron deficiency anemia on the second day of life, were administered irondextran drug uniferon (200 mg of iron (III) per injection). Piglets and sows were observed for two months; for studies of the content of immunoglobulins in the piglets' serum, the blood samples were taken at 1, 5, 12, and 30 days of life. During the experiment, the indicators of the content of immunoglobulins of classes G, A, M in the serum of piglets of the experimental group and the dynamics of their changes within 30 days after birth did not differ from the control. Two injections of 10 % solution of Iron(IV) clatrochelate in a dose of 10 ml in combination with cyanocobalamin injections at a dose of 500 mg of active substance to pregnant sows 14 and 7 days before the expected farrowing did not adversely affect the immune status of newborn piglets. Furthermore, this has a high prophylactic effect against iron deficiency anemia.

Privacy-Preserving Scheme in the Blockchain Based on Group Signature with Multiple Managers

Group signature can provide the privacy-preserving authentication mechanism for the blockchain. In the traditional blockchain privacy-preserving scheme based on the group signature, there is only one group manager to revoke the anonymity. Thus, the traditional scheme will have single point of failure and key escrow problems. To solve these problems, we propose a privacy-preserving scheme in the blockchain based on the group signature with multiple managers. Our scheme is constructed based on bilinear pairing and the technique of distributed key generation. Finally, we analyze the application of the proposed scheme in the field of blockchain-based provable data possession (PDP), as well as the correctness and security of the scheme.

USING FAN COIL UNITS TO REDUCE ELECTRIC ENERGY CONSUMPTION FOR THE FAN DRIVE

Объём потребления энергии, в том числе и электрической, в нашей стране непрерывно увеличивается. В связи с этим возникает необходимость максимального снижения затрат электрической энергии. В статье рассматривается возможность снижения электрической энергии в приточных системах вентиляции за счёт использования вентиляторов-доводчиков. Приведены результаты аэродинамического расчета двух вариантов приточной системы вентиляции промышленного здания. Первый вариант - традиционная схема с одним общим центральным вентилятором. Второй вариант - схема с использованием вентиляторов-доводчиков на отдельных ветвях системы. В результате проведенных расчетов показано, что установка вентиляторов-доводчиков позволит существенно снизить нагрузку на привод центрального вентилятора. The volume of energy consumption, including electricity, in our country is constantly increasing. In this regard, it becomes necessary to reduce the cost of electrical energy as much as possible. The article discusses the possibility of reducing electrical energy in supply ventilation systems through the use of fans. We present the results of the aerodynamic calculation of two variants of the supply ventilation system of an industrial building. The first option is the traditional scheme with one common central fan. The second option is a scheme using fan coil units on separate branches of the system. As a result of the calculations, it is shown that the installation of fan coil units will significantly reduce the load on the central fan drive.

Analysis of loss of grain grains by classical thrusting and separating device of grain harvester combine

Based on the analysis of most domestic combines, it is established that they have a traditional scheme of threshing and separating device, which includes one or two sequentially arranged threshing threshers and keyboard straw shaker. The design of drumming from rods with cross plates provides, first of all, intensification of process of threshed grain. Cereals are threshed easily, so there is no need to intensify threshing. For example, when harvesting grain harvester KZS-9M "Slavutich" with a gap at the outlet between the threshing drum and the drum 18 mm and the speed of the threshing drum 450 min-1, the loss of threshing was absent in all experiments. In this case, the transverse plates of the drum are an obstacle to the movement of the threshed mass in the threshing-separating device, forming a dead space behind each bar, where a small component of plant mass accumulates. The quality of the threshing and separating device of the combine harvester was determined by the coefficients of undersmilling, separation, crushing and clogging of the grain received for cleaning. Damage to the grain during threshing in the thresher is mainly due to the influence of the circumferential linear velocity of the threshing drum and the gap between the threshing drum and the drum. Therefore, the gap in the threshing space is variable and changes in the direction of decrease from the entrance of the plant mass into the threshing device to its exit. To summarize, we used the gap in the threshing space at the outlet of the thresher. In this regard, the beginning of the tests was at a drum speed of 450 min-1. During the tests it was found that the greatest influence on the damage to the grain has a circular linear speed of the threshing drum. Thus, when increasing the speed of the drum per 100 min-1 from 450 to 550 min-1, the damage increased from 1.5% to 5.5%, ie almost 4 times.

Comparative effectiveness of iron-containing drugs for the prevention of iron deficiency anemia in piglets

Prevention of iron deficiency anemia in piglets is an important preventive measure to ensure the health of pigs, as mortality from this pathology is quite high, and animals that recover from treatment do not realize their own potential productivity. The aim of our study was to evaluate the effectiveness of the use of iron (IV) clatrochelate in combination with cyanocobalamin for the prevention of iron deficiency anemia in piglets compared to the traditional scheme of prevention of this disease. To achieve this goal, 2 groups of newborn piglets-analogues were formed during their retention with suckling sows – control and experimental, 15 animals in each. The experiment lasted 30 days. Piglets in the experimental group were selected from sows given 10 ml of 10 % iron (IV) clatrochelate solution and cyanocobalamin solution twice intramuscularly during pregnancy. Piglets of the control group according to the traditional scheme of prevention of iron deficiency anemia on the second day of life were administered iron dextran drug (at the rate of 200 mg of iron (III) per injection). The results of the study show that the body weight of piglets from 1 to 9 days of their life who are born from sows which used iron (IV) clatrochelate and cyanocobalamin during pregnancy was less (P < 0.001) than the body weight of piglets which used iron dextran on the 2nd day after birth; did not differ on the 12 day of life, but on the 30 day was higher than the body weight of piglets in the control group 1.15 times (P < 0.001). The level of protein in the serum of piglets of the experimental group from birth to 30 day of life was probably higher compared to the control, which indicates that iron (IV) clatrochelate stimulates protein synthesis in the body. Therefore, double injection of 10 % solution of iron (IV) clatrochelate in a dose of 10 ml in combination with injections of cyanocobalamin at a dose of 500 mcg of active substance to pregnant sows pregnant sows 14 and 7 days before the expected farrowing provides a preventive effect of iron deficiency anemia in piglets born to them.

Julius Evola between christianity and neospiritualism

The article is devoted to the problem of the attitude of the Italian traditionalist philosopher Julius Evola to Christianity and neo-spiritualism. This task is solved on the basis of the comparative historical method of studying the works of Evola of different years and their assessment by researchers. Priority attention is paid to the analysis of the work "The Mask and Face of Contemporary Spiritualism" that was first published in Russian in 2020. The present work is considered in the context of all Evola's work, especially the works published in Russia recently. The question is raised about personalism in Evola's metaphysics. The essence of his criticism of psychoanalysis, spiritualism, theosophy, anthroposophy, primitivism, Satanism, some magical organizations and other forms of "new religiosity" is revealed. In the paper the traditional scheme of opposing the early, middle and late periods of Evola's work according to the criterion of his attitude to Christianity is contested. It is shown that from the early 1930s to the early 1970s his assessment of Christianity was invariably ambivalent and contradictory, although the emphasis on the positive aspects had been gradually increased. The problem of dualism in Christianity and the differences between the early Church, medieval Catholicism and the Aggiornamento of the twentieth century are examined in detail. The main conclusion of our investigation is that Evola, in spite of his personal antipathies to the Christian doctrine, was constantly forced to admit the possibility of a full-fledged spiritual realization of a person within the Catholic and Orthodox Churches and to act as an ally of Catholicism against all forms of neo-spiritualism and neo-paganism.

Development of Mayonnaise Technology Enriched with Milk Whey Protein

Цель работы – разработать технологию нового продукта с повышенным содержанием белка. В статье представлена технология производства майонеза, обогащённого сывороточным белком альбумином. При разработке технологической схемы производства майонеза с альбумином была принята традиционная схема, в которую были добавлены дополнительные операции по подготовке альбумина: размораживание (дефростация), обезвоживание. В ходе исследований были проведены выработки контрольного и трёх опытных образцов с различным процентным содержанием альбумина (5, 10 и 15%). По результатам проведённых исследований нами рекомендуется вводить в рецептуру майонеза не более 10% альбумина. По органолептическим показателям, влажности и кислотности разработанный нами продукт отвечает требованиям ГОСТ 31761-2012 «Майонезы и соусы майонезные. Общие технические условия». Мы считаем, что введение в рецептуру альбумина позволит увеличить в майонезе долю легкоусвояемого белка, что, несомненно, повысит пищевую и биологическую ценность готового продукта. The goal of the work is to develop the technology of a new product with an increased protein content. The technology for the production of mayonnaise enriched with whey protein albumin is presented in the article. When developing the technological scheme for the production of mayonnaise with albumin, a traditional scheme was adopted, in which additional operations for the preparation of albumin were added: defrosting (defrostation), sublimating. During the researches the production of control and three experimental samples with different percentages of albumin (5, 10 and 15%) was carried out. According to the results of the research carried out, we recommend introducing no more than 10% albumin into the mayonnaise formula. According to organoleptic indicators, humidity and acidity, the product developed by us meets the requirements of GOST 31761-2012 "Mayonnaise and mayonnaise sauces. General Specifications". We believe that the addition of albumin to the formula will increase the proportion of easily digestible protein in mayonnaise, which will undoubtedly increase the nutritional and biological value of the finished product.

Water Quality-Based Double-Gates Control Strategy for Combined Sewer Overflows Pollution Control

The combined sewer overflows (CSO) pollution has caused many serious environmental problems, which has aroused a worldwide concern. Traditional interception-storage measures, which exhibit the disadvantages of the larger storage tank volume and the low concentration, cannot efficiently control the CSO pollution. To solve this problem, a water quality-based double-gate control strategy based on the pollution based real-time control (PBRTC) rule was proposed, and the chemical oxygen demand (COD) concentration was taken as the control index. A case study was carried out in Fuzhou, China as an example, in which the hydraulic and water quality model were constructed to evaluate two schemes. According to the results, compared to the traditional scheme, the double-gate scheme can not only reduce the storage tank volume by 1515 m3, but also increase the average COD interception rate by 1.84 times, thus ensuring the effective and stable operation of the facility. Furthermore, the traditional scheme and the double-gate scheme were evaluated under design rainfall beyond the design return period, which confirmed the high performance of the double-gate scheme in controlling CSO pollution.