bluuebunny/crossref_metadata_2025 huggingface dataset:
The effect of hypoxia on the surfactant system of the lungs
Authors: Shvedsky M.S. , Matvienko V.V. , Vagina D.A.
Published: December 2021

The study was conducted on mongrel male rats 120-180 g. Physical activity was performed by swimming for 40 minutes for 3 consecutive days. After three days, the development of insufficiency of the surfactant respiratory system was established, which will be characterized by moderate destruction of alveolocytes, violation of the entire aerogematic barrier as a whole, edema of alveolocytes, and, of course, POL. Key words: surfactant system of the lungs, physical activity, lipid peroxidation, respiratory organs.
On the question of carcinogenesis in superinvasive opisthorchiasis
Authors: Shvedsky M.S. , Bychkov V.G. , Matvienko V.V. , Solovyova O.G. , Duboshinsky R.I. , Vagina D.A.
Published: December 2021

Retrospective analysis of foreign literature present in PubMed was carried out with the purpose to define possible influence of superinvasive opisthorchiasis on possible development of cholangiocellular carcinoma. After the research we conclude that O. Felineus doesn’t have an entry point during the initiation stage of carcinogenesis but rather acts as a promotor of cholangiocarcinoma (СС), and therefore cannot be considered a primary cause of the disease without additional influence of another carcinogens and specific factors that increase the probability of cholangiocarcinoma development (chronic inflammation, free radicals).

Keywords: superinvasive opisthorchiasis, parasitism, immune system, carcinogenesis.
Features of the extrapancreatic action of glibenclamide in cerebral ischemia in the highlands
Authors: Shuvalova M.S. , Shidakov Yu.X-M. , Shanazarov A.S. , Zhanuzakov D.Z. , Mamytova A.B.
Published: December 2021

The features of remodeling of the components of the vascular plexus and the microcirculatory bed of the brain in cerebral ischemia in the highlands are studied, the features of the action of glibenclamide on these structures are presented. It is shown that the sulfonylurea receptor 1 (SUR 1) in the highlands becomes more sensitive to glibenclamide than in the low mountains.

Key words: brain, ischemia, glibenclamide, highlands.
Some aspects of the treatment of patients with paracolostomy fistulas in outpatient settings
Authors: Birch E.D. , Smolkina A.V.
Published: December 2021

The analysis of the results of treatment of 15 patients with paracolostomy fistulas treated on an outpatient basis with the use of the sorbent "Celoform" was carried out. The use of modern drugs for the local treatment of wounds at all stages of complex treatment makes it possible to shorten the time of systemic antimicrobial therapy, avoid the development of side effects, and significantly reduce the cost of expensive antibacterial drugs.

Key words: colostomy, paracolostomy fistula, sorbent "Coeloform, quality of life.
Effect of percutaneous electrical stimulation of the spinal cord on the manifestation of reciprocal and presynaptic inhibition α-motor neurons of the lower leg muscles against the background of a weak isometric contraction in magnitude
Authors: Gladchenko D.A. , Bogdanov S.M. , Roshchina L.V. , Chelnokov A.A.
Published: December 2021

The article presents the results of a study of the reflex mechanisms of reciprocal and presynaptic inhibition at rest and when performing an isometric reduction of 5% of MPS against the background of twenty-minute non-invasive electrical stimulation of the spinal cord. It was found that at rest against the background of electrical stimulation, reciprocal and presynaptic inhibition was inverted to their relief, and when performing plantar flexion of the foot, on the contrary, reciprocal and presynaptic inhibition increased, but the severity of presynaptic inhibition was greater.

Key words: percutaneous electrical stimulation of the spinal cord, reciprocal inhibition, presynaptic inhibition, isometric contraction.
IDENTIFICATION AND CLASSIFICATION OF URBAN PLANNING CONFLICTS IN THE USE OF WATER RESOURCES IN BELGOROD
Authors: Per'kova M. , Dubino A.
Published: December 2021

Sustainable development of the territory is impossible without balanced processes of anthropogenic human activity and rational use of natural resources. The problem of sufficiency and quality of water resources is relevant for the city of Belgorod. For 2021, the Belgorod region is limited by the resources of local surface and underground wastewater, with a fairly high level of municipal, agricultural and industrial consumers. The relevance of this work also lies in the increase in anthropogenic load on the natural framework, which entails a significant deterioration in the quality of surface and groundwater. In this regard, urban planning conflicts arise, which have an impact on the development of the city territory and the quality of the living environment. The research examines urban planning conflicts in the use of water resources in Belgorod. The causes of urban planning conflicts in relation to riverine territories and available water resources have been identified. The identified regulatory, property, land use, transport, social and functional urban planning conflicts are classified according to the hierarchical level, by duration, by the method of occurrence, by type of location, by the nature of manifestation. The introduction of water-saving design into the urban planning practice of the city of Belgorod is justified.
STUDY OF THE INFLUENCE OF TECHNOLOGICAL PARAMETERS ON THE GRANULOMETRIC CHARACTERISTICS OF SUBMICRON ALUMINUM OXIDE IN α-FORM
Authors: Troubitsin M. , Volovicheva N. , Furda L. , Skrypnikov N.
Published: December 2021

Experimental studies of the influence of technological parameters of grinding alumina raw materials in a ball mill on the kinetics of the grinding process and the granulometric characteristics of activated alumina in the α-form have been carried out. It is found that the use of spherical grinding bodies leads to the formation of a specific four-modal granulometric composition with maxima: 0.5; 4.0; 50.0 and 400.0 microns, respectively. The disadvantage of using spherical grinding bodies is the uneven distribution of the introduced intensifier additive (PEG), which in turn causes adhesion of fine particles and the appearance of aggregates. This is especially pronounced at n = 100 rpm. When using grinding bodies of cylindrical shape, on the contrary, there is a tendency towards a bimodal nature of the distribution of particles with maxima in the regions of 0.4 and 4 μm, respectively, regardless of the rotation speed of the drum (n). The use of cylpebs does not provoke agglomeration of the fine particle fraction, which is observed in the case of spherical grinding bodies. When analyzing the kinetics of grinding alumina raw materials, two main stages of the process are identified. The first stage corresponds to the active fragmentation of large initial aggregates into constituent crystallites by the cleavage mechanism. The second stage corresponds to a change in the grinding mechanism from crushing to abrasion. It is found that carrying out the grinding process for 10 hours using cylindrical grinding bodies at n = 100 rpm and φ = 0.35 provides a high yield of the submicron fraction of the target product (1 μm) - up to 20 wt. %.
Gauge Symmetries in Physical Fields (Review)
Authors: Kambe Tsutomu
Published: December 2021

Gauge invariance is one of the fundamental symmetries in theoretical physics. In this paper, the gauge symmetry is reviewed to see how it is working in fundamental physical fields: Electromagnetism, Quantum Electro Dynamics and Geometric Theory of Gravity. In the 19th century, the gauge invariance was recognized as a mathematical non-uniqueness of the electromagnetic potentials. Real recognition of the gauge symmetry and its physical significance required two new fields developed in the 20th century: the relativity theory for physics of the world structure of linked 4d-spacetime and the quantum mechanics for the new dimension of a phase factor in complex representation of wave function. Finally the gauge theory was formulated on the basis of the gauge principle which played a role of guiding principle in the study of physicalfields such as Quantum Electrodynamics, Particle Physics and Theory of Gravitation. Fluid mechanics of a perfect fluid can join in this circles, which is another motivation of the present review. There is a hint of fluid gauge theory in the general representation of rotational flows of an ideal compressible fluid satisfying the Euler’s equation, found in 2013 by the author. In fact, law of mass conservation can be deduced from the gauge symmetry equipped in the new system of fluid-flow field combined with a gauge field, rather than given a priori.
Strategi Sosialisasi Pemerintah Daerah Kabupaten Aceh Selatan dalam Pelaksanaan Program Santunan Kematian
Authors: Riski Wini Delvia , Mardhiah Nellis
Published: December 2021

This study aims to determine: (1) the socialization strategy, (2) the supporting factors of the socialization strategy, and (3) the inhibiting factors of the socialization strategy. To find out the problems that occur, the researcher uses a qualitative descriptive research method. Data was collected using library techniques, observation, interviews, and documentation for data analysis techniques using descriptive analysis techniques. The study results indicate that: (1) The selection of a good and correct strategy in conducting socialization is the task of the Aceh Privileges and People's Welfare section. The socialization strategy plays a role in realizing the implementation of the death benefit assistance program, which in essence, the community can know and understand death compensation. after that, determine the target in the socialization, then choose the media to be used and the management of socialization. (2) This program supports several parties such as payment partners and the infrastructure used to support this activity. (3) There are obstacles in managing death compensation, namely in terms of education, economy, and social, which causes the majority of the public not to know information about death compensation assistance.
THE EFFECT OFPRP-THERAPY ON THE STATE OFTHE MICROCIRCULATORY BED USING FIXED ORTHODONTIC APPLIANCES
Authors: Kovach I. , Gutarova N. , Alekseeva V.
Published: December 2021

The effect of PRP-therapy on the state of the vessels of the microvasculature was determined using invariable orthodontic appliances (FOAs). The experiments were carried out on 32 male rabbits of the Dutch breed aged 9 months, which were evenly distributed into four groups: control and experimental groups (I, II, III), 8 animals each. It has been established that treatment with FOAs leads to deterioration of the microcirculatory bed vessels, the development of ischemia and necrosis of the oral mucosa. The use of antibacterial drugs against the background of FOAs leads to a weakly pronounced effect, which develops quite late (on the 20th day in the studied group of rabbits). The most effective method of treatment is the use of PRP-therapy with a pronounced, strong and long-term effect from the very first days with a minimum of contraindications to the procedure.
Keywords: microcirculatory bed, PRP-therapy, permanent orthodontic technique.
ANTIOXIDANT EFFECT OF PHOTODYNAMIC THERAPY IN TREATMENT OF RADIATION-INDUCED ULCERS INFECTED WITH S. AUREUS
Authors: Krasnoselsky N. V. , Pushkar E. S.
Published: December 2021

We studied the systemic effect of photodynamic therapy (PDT) in experimental animals at PDT local exposure on their radiation-induced ulcer (the local skin irradiation dose of 85.0 Gr) infected with S. aureus. Lipid peroxidation (LPO) products (malondialdehyde, diene conjugates) were determined in blood serum. LPO levels were measured by conventional techniques. It was found that the values of pro oxidant markers concentration (2.0-2.5 fold increased diene conjugates level, 30-40 % increased malondialdehyde content in the infected group), which dramatically increased after local irradiation of the outer surface of thigh and, especially, after infection of the wound surface, at PDT treatment restored to normal levels.
Keywords: infected radiation ulcer, photodynamic therapy (PDT), lipid peroxidation (LPO), malondialdehyde (MDA), diene conjugates (DC).
SEISMICITY of AZERBAIJAN and ADJACENT TERRITORIES in 2015
Authors: Etirmishli G. , Abdullaeva R. , Ismailova S. , Kazimova S.
Published: December 2021

In 2015, the network of Azerbaijan seismic stations included 35 digital stations, which continued to operate unchanged. The set of parameters determined for estimating the earthquake magnitude has decreased – determination of the MPVA magnitude and КР energy class has ceased. Only the local magnitude MLАзр was measured. The total number of earthquakes recorded by the Azerbaijan network of stations in 2015 amounted to 6419, however, only 128 of them with MLАзр3.0 are given in the catalogue of earthquakes of Azerbaijan published in the Appendix to this article. Seismic activity in the study area remained unchanged. The released seismic energy changed insignificantly compared to its value in 2014 and was close to the background level for the period 1993–2014. The increase in the number of earthquakes of the representative level (K≥8.6, MLАзр≥2.8) in comparison with the long-term average annual value is due to aftershocks of earthquakes on January 26 with MLАзр=4.9, June 3 with MLАзр=4.6, and September 4 with MLАзр=5.9. The 2015 most significant seismic event on the territory of the Republic was the earthquake on September 4 with MLАзр=5.9 and seismic intensity at the epicenter of I0=7.
SEISMICITY of the KOPETDAG REGION in 2015
Authors: Saryeva G. , Petrova N. , Bezmenova L.
Published: December 2021

In 2015, the seismicity of the Kopetdag region was monitored by the network of 32 seismic stations, including 28 digital and 4 analogue stations. The re-equipment of stationary analogue stations of Turkmenistan with digital GEOSIG equipment, which began in 2013, was continued in 2015 – 6 GEOSIG stations were added to 9 stations of this type, and the analogue equipment at the re-equipped stations was stopped. In 2015, the seismic activity A10 in the Kopetdag region was close to the background level for the period 1992–2014, while the number of weak events significantly exceeded the level of the previous year. The seismic activation along the boundaries of the crustal blocks in the north of the Iranian plate, which began in 2012, continued by the October 12, 2015 earthquake with KR=12.7, Mw=5.2. This strongest earthquake in the territory of Turkmenistan in 2015, named the Kenekesir earthquake by the name of the nearest settlement, accompanied by numerous aftershocks – more than 35000 events with KR=3–11 were located during 80 days after the mainshock within 30 km radius. The aftershock series lasted 186 days and ended in 2016. According to the complex of instrumental seismological and tectonic data, oblique-slip with equal normal and strike-slip components occurred in the source of the mainshock. The rupture plane had a southwestern strike and dipped to the northwest. The maximum ("Bath’s") aftershock occurred on November 16 with KR=11.1. Judging by its remoteness from the mainshock in space and time, and the difference in the type of movement in the source (upthrust), it was caused by stress relaxation in the environment.
MUYAKAN EARTHQUAKE SEQUENCE in 2015 (Northern Baikal Region)
Authors: Gileva N. , Melnikova V. , Filippova A. , Radziminovich Ya. , Kobeleva E.
Published: December 2021

We present the results of studies of the seismic regime, focal mechanisms, and macroseismic data in the area of the largest Muyakan activation in 2015 (northern Baikal region). Due to the deployment of
a network of temporary seismic stations, the number of registered earthquakes (KR≥3) increased significantly in 2015 and reached  30 thousand. Spatio-temporal development of the considered activation is characterized by stable low values of earthquake hypocenters and dividing the epicentral field into two clusters – eastern and north-western ones. Both clusters are connected with local stress-strain field (rift type and strike-slip, respectively), while the general regime of seismotectonic deformations of the crust in the activation area, calculated from the statistical analysis of 77 focal mechanisms of Muyakan earthquakes (KR≥9.2), demonstrates the predominance of submeri-dional horizontal extension. Macroseismic effects from the largest earthquakes of the Muyakan sequence were felt, predominantly, in Severomuysk settlement (=10–15 km, I=5). New data on strong motions, obtained from the records of the seismic station with the same name, have significantly complemented the database for the territory of the north-eastern flank of the Baikal rift zone. In general, the obtained results could be used to clarify the seismic hazard of the considered area and to improve the instrumental part of seismic scales.
TALDYK EARTHQUAKE on November 17, 2015 with KR=14.1, Mw=5.5 (Kyrgyzstan)
Authors: Frolova A. , Grebennikova V. , Bagmanova N. , Berezina A. , Pershina E. , Moldobekova S.
Published: December 2021

Information on the earthquake with KR=14.1, which occurred in Kyrgyzstan on November 17, 2015, is presented. Its epicenter is related to the South Fergana zone of the Osh region, in which felt earthquakes with intensity up to I=8–9 occurred repeatedly. This event was named Taldyk according to the settlement nearest to the epicenter. The earthquake was accompanied by numerous aftershocks: for the first day, 189 events were registered, for the second – 196, for the third – 84. Most part of the aftershocks is localized within the depth interval of 12–13 km, which is practically equal to the depth of the main shock (h=13 km). The focal mechanism of the main shock has a reverse type with strike-slip components. No serious investigation of the consequences of this earthquake carried out. Some macroseismic data are received from field reports of the station operators. For a more complete analysis of the possible impact of this earthquake and, first of all, for the needs of the Ministry of Emergency Situations of Kyrgyzstan Republic, a map of theoretical isoseismals was created.
Stabilisasi Tanah Lempung Dengan Abu Tandan Kosong Kelapa Sawit dan Semen Terhadap Kuat Tekan Bebas
Authors: Anggraini Muthia , Saleh Alfian
Published: December 2021

Pencampuran tanah asli dengan abu tandan kelapa sawit kosong dan semen merupakan usaha untuk meningkatkan kuat dukung tanah lempung. Tujuan penelitian  menentukan  pengaruh penambahan 7,5% abu tandan kosong kelapa sawit  dan semen  masing – masing  5%, 7.5%, dan 10%  terhadap nilai kuat tekan bebas. Kontribusi penelitian ini nantinya dapat menjadi rekomendasi untuk penanganan perbaikan tanah.  Metode yang dilakukan adalah pengujian kuat tekan bebas tanah stabilisasi di laboratorium yang mengacu SNI 3638:2012. Hasil penelitian menunjukan tanah lempung yang diteliti termasuk lempung plastisitas tinggi dengan nilai batas cair 55,3%. Penambahan abu tandan kosong kelapa sawit dan semen cenderung mengurangi nilai batas cair tanah menjadi 40,30% pada persentase 7,5% abu tandan kelapa sawit kosong dan 10% semen.  Nilai kuat dukung tanah naik maksimum 2,10 kg/cm² pada 7,5% abu tandan kosong kelapa sawit dan 10% semen, dan turun menjadi 1,88 kg/cm² pada 7,5% abu tandan kelapa sawit kosong dan 10% semen. Nilai kuat dukung tanah asli adalah 1,96 kg/cm². Kesimpulan yang didapat bahwa penambahan abu tandan kosong kelapa sawit dan semen cenderung mengurangi nilai konsistensi tanah dan menaikkan nilai kuat tekan bebas tanah pada kadar tertentu dan akan turun setelah mencapai maksimum.
RESULTS OF TECHNOLOGYCAL PARAMETERS OPTIMIZATION FOR THE CURD FILTER – PRESSING EQUIPMENT
Authors: Jargalsaikhan Amgalanzul , Dorjsuren Baatarkhuu
Published: December 2021

Mongolia has a large nomadic culture which has existed for thousands of years. Nomadic herders spend much of their time producing milk and dairy products, including Aaruul, or dried yogurt curd, which is a local dairy product unique to Mongolia. There are several steps in the production of Aaruul from raw milk to the final dried curd, including an overnight filtration process. The main objective of this study was to optimize the curd filter pressing process for a newly designed apparatus, to establish the best time, pressure and weight of the curd. The apparatus tested could halve the time of current filtration methods. This study also demonstrated a more precise mathematical model of operating parameters of the pneumatic filter pressing device, measuring curd weight, compression pressure and time.
500 °C high-temperature reliability of Ni/Nb ohmic contact on n-type 4H-SiC
Authors: Van Cuong Vuong , Sato Tadashi , Miyazaki Takamichi , Meguro Tatsuya , Ishikawa Seiji , Maeda Tomonori , Sezaki Hiroshi , Kuroki Shin-Ichiro
Published: December 2021

The reliability of Ni/Nb ohmic contact on n-type 4H-SiC at 500 °C was investigated. The current–voltage characteristics showed that, while the Ni(50)/Nb(50)/4H-SiC sample without applying the CF4:O2 etching process degraded just after 25 h and lost ohmic behavior after 50 h aging, the Ni(75)/Nb(25)/4H-SiC contact undergone CF4:O2 surface treatment still showed excellent stability after aging for 100 h at 500 °C. Though X-ray diffraction results indicated that the chemical compounds remained stable during the aging process, transmission electron microscopy showed that there was a redistribution of the chemical compounds at the interface of the contact after 500 °C aging. The depth distribution of the elements and energy-dispersive X-ray analyses revealed that the contribution of carbon agglomeration at the interface accounted for the degradation of the sample without applying the etching process. Whereas the well-controlled excess carbon atoms of the contact undergone CF4:O2 treatment ensured the stability of this contact when operating at a high ambient temperature.
Reactive RF magnetron sputtering epitaxy of NiO thin films on (0001) sapphire and (100) MgO substrates
Authors: Nishimoto Keisuke , Shima Kohei , Chichibu Shigefusa F. , Sugiyama Mutsumi
Published: December 2021

Epitaxial growths of NiO thin films were realized on (0001) sapphire and (100) MgO substrates by using a reactive RF magnetron sputtering method. The NiO epilayers grown on a (0001) sapphire exhibited the (111)-oriented double-domain structure, which comprised of a triangular and its inverted triangular grains. Meanwhile, the NiO epilayers on a (100) MgO exhibited the (100)-oriented single-domain structure, which comprised of quadrangular grains. The observed grain structures most likely reflect the growth planes of respective NiO epilayers, and, mixed crystals of NiO and MgO were present near the interface. Therefore, a (100) MgO substrate is suitable for obtaining a single-domain NiO epilayer, whereas a (0001) sapphire substrate is suitable for obtaining a NiO epilayer without interdiffusion between NiO and sapphire. These NiO epilayers will be expected for applying the physical properties evaluation using photoluminescence or Hall measurements, and the fabrication of electrical or optical devices.
Scalable printing of two-dimensional single crystals of organic semiconductors towards high-end device applications
Authors: Kumagai Shohei , Makita Tatsuyuki , Watanabe Shun , Takeya Jun
Published: December 2021

The past several decades have witnessed a vast array of developments in printable organic semiconductors, where successes both in synthetic chemistry and in printing technology constituted a key step forward to the realization of printed electronics. In this Review, we highlight specifically materials science, charge transport, and device engineering of—two-dimensional single crystals—. Defect-free organic single-crystalline wafers manufactured via a one-shot printing process allow remarkably reliable implementations of organic thin-film transistors with decently high carrier mobility up to 10 cm2 V−1 s−1, which has revolutionized the current printing electronics to be able to meet looming internet of things challenges. This Review focuses on the perspective of printing two-dimensional single crystals with reasonable areal coverage, showing their promising applications for practical devices and future human society, particularly based on our recent contributions.
Knockdown factors for cylindrical shells caused by torsional Mode-I type geometric imperfections under axial compression
Authors: KOCABAŞ İbrahim , YILMAZ Haluk
Published: December 2021

Geometrical imperfection, which is generally a result of manufacturing process and service conditions, plays a crucial role in load-bearing capacity of shell structures. This study presents a numerical study on knockdown factors of cylindrical shells as a result of torsional Mode-I type of geometric imperfections under compressive loads. The deformation patterns obtained from liner bifurcation analysis (LBA) for torsional Mode-I shape are used as a source of geometric imperfection. Then, geometrically nonlinear buckling analysis with imperfect model (GNIA) is incorporated with LBA in ANSYS Workbench to obtain limit loads of imperfect structures. A parametric study is thus performed to investigate the influence of imperfection depth on the load-bearing capacity considering a wide range of cylindrical shell configurations. Local and global buckling characteristics of the imperfect shells are examined and knockdown factors are characterized by three distinct regions as a basis of normalized imperfection depth. For a large number of shell configurations, a scattering of knockdown factors against normalized imperfection depth is given with mathematical expressions evolving lower and upper bounds. These expressions provide the minimum and maximum values of knockdown factors for a given imperfection depth, which can be treated as a design tool to ensure safety of the shell structure.
Investigating the construction parameters of deep mixing columns in silty soils
Authors: YENGİNAR Yavuz , MOBARK Ahmed A. M. M. , OLGUN Murat
Published: December 2021

In the present research, the optimum condition of the grout consisting of cement, fly ash, superplasticizer, and water was determined to produce the most durable and impermeable deep mixing columns (DMC) on silty soils. It is aimed to reduce the grout cost and environmental pollution by using high-rate fly ash in the grout. Superplasticizer additive was used to increase the flow consistency of grout consisting of high-rate fly ash. The design of the experiments was made using the 5-parameter and 4-level L16 orthogonal array table specific to the Taguchi method. Accordingly, the unconfined compression strength (qu) and the permeability coefficient (k) of the soil-binder mixtures at the end of the 7- and 28-days curing time were determined. According to the test results, regression analyzes were performed and models with high reliability were created for qu and k. As a result of optimization studies, to produce DMC having high strength and low permeability, grout content should be consisting of 14% cement, 14% fly ash (ratio of fly ash in the binder is 50%), 2.68% super plasticizer additive, and 0.95 water/binder ratio. The pozzolanic reactions in soil-binder samples with different grout contents were examined by SEM analysis.
Direct and flexible mesh contour coupling for airfoil optimisation
Authors: Trautsch Stephan , Mrech Heike , Grote Karl-Heinrich , Beyer Christiane
Published: December 2021

Blade profiles are used in many technical systems, including in the use of wind and water energy, and in aviation and shipping. The shape of the airfoil contour has a crucial influence on the resulting forces at the cross-section around the airfoil. The optimisation tasks are characterised by an exceptionally large number and dynamics of the influencing parameters. These are generated by a combined flow-related and structural mechanical simulation. The current research presented here takes up these core elements of the shaping processes and makes them more flexible and transparent than conventional design methodologies. The aim is to improve the design process through a direct and flexible mesh-contour coupling in such a way that the resulting shape change can be directly correlated to the initiating characteristic flow variable. The integration of the FEMSeq method enables the optimal distribution and reduction of the material without causing a failure of the overall structure.
Hydration of natural gas hydrogen mixture test equipment
Authors: Bölkény Ildikó , Horváth Domonkos , Vadászi Marianna
Published: December 2021

The use of hydrogen as an energy source is advantageous because its combustion processes only produce water vapor, but not carbon dioxide. This excess energy can be stored in underground gas storage facilities, where it is delivered mixed with natural gas. In gas- and oil industry the formation of hydrate crystals can cause significant damages. A huge amount of hydrate crystal is formed, it can cause hydrate plugs in the pipeline. Like natural gas, hydrate formation occurs in the case of a natural gas-hydrogen mixture. The paper presents a method which can be used to study hydrate formation in natural gas-hydrogen mixture.
Flat-band conditions influenced by spin-orbit interaction in the presence of external magnetic field
Authors: Kucska Nóra , Gulácsi Zsolt
Published: December 2021

We deduct conditions for the Hamiltonian coupling strengths necessary to achieve flat bands in polymers (i.e. a pentagon chain) considering many-body spin-orbit coupling and external magnetic field. We consider itinerant electrons on pentagon chains with first neighbour hoppings, on-site electron potentials and spin-flip first neighbour hoppings representing the Rashba type spin-orbit interaction (SOI). The external magnetic field is also present in the system via the Peierls phase factors. The band structure is obtained by solving the secular equation of the diagonalized one particle part of the Hamiltonian in k-space (momentum-space). The flat band conditions make the bands k-independent, providing a highly a degenerate state, which gives broad possibilities for applications. In our work we have shown how the SOI is able to relax the strict, rigid flat band conditions given by the Hamiltonian coupling strengths. The role of the external magnetic field was also investigated.
The alteration of the operating parameteres of the aerocyclone depending on the geometry of the vortex finder
Authors: Orosz Blanka , Petrik Máté , Szepesi L. Gábor
Published: December 2021

The engineering practice in general requires the ability to recognize the possible hazards associated with the coordinated production process. Solid particles found in the air can potentially be one of these, therefore it is fundamental to deal with the risk posed by certain types of dusts. An industrial cyclone is an equipment which is designed to separate the hazardous material from the harmless matter within the air. First and foremost the efficiency of a cyclone is determined substantially by the operating parameters. Certain geometries of the device however, such as the vortex finder can also have a significant role. The experiment conducted revolves around a CFD simulation to determine the efficiency of the apparatus based on different geometries in general and also regarding the vortex finder. The results indicate that the length of the vortex detector has a more significant effect, than the overall geometry.
Climate finance activities of the multilateral development banks, emphasizing the role of the European Investment Bank in this regard
Authors: Eperjesi Zoltán
Published: December 2021

Regional disparities have always been present in the history of the European Union that has become more and more significant and intense on the occasion of the continuous enlargements of the integration. The European Investment Bank (EIB) as a policy driven development bank of the European Union plays a crucial role in reducing these regional disparities and fostering the social and territorial cohesion of the union by providing funds at favourable terms. The EIB, on the path of considerable metamorphosis, is being transformed to a so called climate or green bank, having simultaneously two task to fulfil, namely to strengthen the European Union’s position on the multi-polar global market and secure a just transition for those regions that are mostly hit by the measures taken for a climate-friendly and environmentally sustainable economy. All of the multilateral development banks following the parity and disparity models place great emphasis upon climate finance to contribute to sustainable economic growth, increasing employment and a heathy planet. The research covers the period of time between 2015 and 2025.
Foto-montaje
Authors: Finelli Renata Carla
Published: December 2021

La revista del Frente de Izquierda de las Artes [Levyy Front Iskusstv] fue una de las principales publicaciones que promovió el debate y la reflexión teórica en el ambiente revolucionario ruso de la década de 1920. En su primera plataforma, LEF (1923-1925), dirigida por el artista y poeta Vladímir Mayakóvskiy, la revista promovió la fotografía y, principalmente, el fotomontaje como la nueva herramienta artística del arte soviético. El citado y famoso artículo Foto-montaje que apareció en el número 4 del año 1924 es reproducido aquí con nuevas consideraciones y hallazgos.
Kierkegaard y el concepto de ironía
Authors: Schulz Jorge
Published: December 2021

En los últimos años los estudios sobre la ironía han cobrado un renovado interés en los estudios kierkegaardianos. Además de estar vinculada a una estrategia de comunicación indirecta, la ironía –caracterizada por la contradicción– es abordada por el filósofo danés como una posición existencial lindante a las esferas estética y ética. El presente trabajo explora la relación entre la noción de ironía elaborada por Søren Kierkegaard en su tesis de 1841 y aquella ironía presentada en sus escritos pseudónimos como confinium o región fronteriza que posibilitan los saltos del desarrollo subjetivo. Se sostiene aquí que la contraposición establecida entre la ironía socrática y romántica tiene su correlato en la dialéctica entre el esteta A y el juez Wilhelm presentada en O lo uno o lo otro. El análisis de esta contraposición desde el punto de vista del Postcriptum contribuye a esclarecer la figura del ironista, destacando el importante papel de la imaginación y el anclaje que esta ha de tener en la realidad histórica concreta para vislumbrar la posibilidad de una existencia en la esfera ética.
Strategi Pemasaran UMKM Untuk Bertahan dan Berkembang Di Masa Pandemi Covid-19 (Studi di Desa Tawang Kecamatan Wates Kabupaten Kediri)
Authors: Melinda Carista Nora
Published: December 2021

Pademi Covid-19 yang saat ini terjadi di berbagai negara termasuk di Indonesia membuat sektor perekonomian menurun drastis, khususnya pada kegiatan UMKM. Saat ini pemerintah menerapkan PPKM (Pemberlakuan Pembatasan Kegiatan Masyarakat di Indonesia) di Jawa dan Bali.  Jawa Timur termasuk salah satu yang menerapkan kebijakan PPKM secara ketat. Diberlakukannya PPKM membuat kegiatan perekonomian masyarakat menjadi terhambat, dikarenakan pembatasan dan penyekatan hamper seluruh akses utama jalan yang disepanjang jalan tersebut banyak pedagang yang berjualan, tetapi sekarang terpaksa tutup karena adanya PPKM. UMKM atau yang biasa kita sebut dengan Usaha Mikro Kecil Menengah yang jelas terkena dampaknya yang sangat signifikan, pendapatan yang diperoleh pasti mengalami penurunan. Tidak sedikit juga UMKM yang harus tidak berjualan terlebih dahulu karena efek dari dampak covid-19 ini. Strategi pemasaran harus diterapkan oleh semua UMKM agar dagangannya mendapatkan omzet yang stabil walaupun adanya dampak dari covid-19. Tidak sedikit juga UMKM yang masih berhasil mempertahankan usahanya dan masih memiliki omzet yang stabil saat adanya pandemi covid-19 ini. Walaupun saat ini masih adanya pandemik covid-19 tetapi UMKM harus terus bertahan dan berkembang pada saat seperti ini, harus adanya inovasi-inovasi atau dobrakan baru agar UMKM yang dijalankan terus berkembang dan selalu bertahan walaupun saat ini lagi pandemi covid-19.
Aplikasi Web Service Aptimas Dengan Arsitektur Representational State Transfer (REST) API
Authors: Supono Supono , Armiati Sari
Published: December 2021

Saat ini data merupakan bagian yang penting di era transformasi teknologi informasi, proses komunikasi pun tidak dibatasi oleh perbedaan jenis perangkat yang digunakan membuat informasi dapat diakses degan mudah. Saat ini Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Pos Indonesia sudah memiliki pangkalan data dalam proses pengelolaan data penelitian, pengabdian, publikasi dan HaKI berbasis web.

Saat ini akses data APTIMAS masih terpusat dan tidak bisa diakses dengan menggunakan aplikasi selain aplikasi APTIMAS, sehingga dibutuhkan sebuah media middle ware atau web service yang memberikan solusi bagaiman aplikasi lain dapat mengkases data APTIMAS seperti untuk pengembangan aplikasi Mobile, dashboard di aplikasi lain, kebutuhan data lainnya. Oleh karena itu dibangunlah sebuah Web Service dengan arsitektur Representational State Transfer (REST) Application Programming Interface (API) yang berfungsi jembatan dalam memberikan layanan untuk komunikasi data.

Dengan dibangunnya aplikasi middleware web service ini, diharapkan APTIMAS sebagai penyedia data penelitian, pengabdian, publikasi dan HaKI di lingkungan internal perguruan tinggi Politeknik Pos Inodoneisa dapat digunakan sebagai rujukan pengambilan data untuk pengembangan aplikasi lain dan kebutuhan data di lingkungan kampus Politeknik Pos Indonesia, tanpa harus mengakses langsung ke database APTIMAS
METHODOLOGICAL RECOMMENDA-TIONS FOR THE DEVELOPMENT OF A SYSTEM OF INTANGIBLE ASSETS AS A BASIS FOR ENSURING SUSTAINABILITY AND STRATEGIC GROWTH OF SMES IN CRISIS CONDITIONS
Authors:   St. Petersburg State Technological Institute (Technical University), Aleksandrov A.V.
Published: December 2021

Despite the fact that not all intangible assets are represented and valued by small and medium-sized enterprises, their connection with economic and financial decisions within the framework of sustainability and strategic growth in crisis conditions is important, since it allows achieving success (profit) now and in the future. The article presents qualitative indicators characterizing a small business unit, the essence and characteristics of in-tangible assets. The directions of develop-ment of the system of intangible assets as the basis for ensuring sustainability and stra-tegic growth, based on the relationship of four components: financial, customer, inter-nal processes, innovation and training, are proposed. The purpose of the article is to draw attention to the existence and im-portance of intangible assets in small busi-ness.
ISSUES OF EFFECTIVE USE OF LAND-FILLS’ LAND RESOURCES AT THE FINAL STAGE OF THEIR LIFE CYCLE
Authors:   Saint-Petersburg State University of Economics, Liubarskaia M.A. , Merkusheva V.S. ,   Petersburg State University of Railway Transport of Emperor Alexander I (PGUPS), Luzin N.M. ,   Petersburg State University of Railway Transport of Emperor Alexander I (PGUPS)
Published: December 2021

The article is focused on the justification of the practicability of involvement of the re-sources from solid waste landfills in the eco-nomic circulation. A large number of landfills located on the territory of Russia have prac-tically exhausted their resources as waste disposal facilities; however, they can be used to obtain secondary energy resources even at the final stage of their life cycle. The optimization model presented by the authors makes it possible to develop an action plan for the phased creation of a biogas collection system based on the zoning of land plots and calculating the return on capital from their use. As an example, the landfill of solid waste "Severnaya Samarka" in the Lenin-grad region is considered.
THE MAIN DIRECTIONS OF INCREASING THE DEVELOPMENT EFFICIENCY OF ENTREPRENEURSHIP FROM THE EUROPEAN NORTH OF RUSSIA
Authors:   Federal State Budgetary Educational Institution of Higher Education ", Popkov V.P. ,   Saint-Petersburg State University of Economics", Zargaryan A.M. ,   Cherepovets State University, Zyabliskay N.V. ,   South Ural State University
Published: December 2021

The article is devoted to the actual issues of entrepreneurship and government interac-tion efficiency increasing. In case of entre-preneurship sectors from the European North of Russia it is established the lack of institutional infrastructure, the weak entre-preneurship involvement to the public-private partnership. The main plan packages, which could increase the regional entrepreneurship development efficiency, are proposed.
CURRENT ISSUES OF INCREASING EF-FICIENCY OF SAINT-PETERSBURG STATE TECHNOLOGICAL INSTITUTE (TECHNICAL UNIVERSITY) STUDENTS’ INVOLVEMENT IN THE INDEPENDENT ASSESSMENT OF QUALIFICATIONS
Authors:   Saint-Petersburg State Technological Institute (Technical Uni-versity), Sivakova Yu.S. , Pogozheva S.Yu. ,   Saint-Petersburg State Technological Institute (Technical University), Shlyago Yu.I. ,   SPbGTI(TU)
Published: December 2021

Currently, the government pays more atten-tion to the standards and guidelines for all education systems to ensure that vocational and higher education programmes are coor-dinated with the evolving needs of the labour market. This policy includes development of the National qualifications system and of the independent assessment of qualifications, which could be served for external evalua-tion of the quality of higher education. The paper represents indicators of SPbGTI(TU) students' involvement in the procedures of independent qualifications assessment, re-sults of students' awareness about the Na-tional Qualifications System and about the infrastructure, which carries out this as-sessment, as well as results of the study of students' motives for voluntary participation in the procedures of the independent qualifi-cations assessment. The paper also offers suggestions about improving students’ in-volvement in the independent assessment of qualifications.
COMPETITION AND METHODS OF COMPETITION IN THE DIGITAL TECHNOLOGY ENVIRONMENT
Authors:   St. Petersburg State Technological Institute (Technical University), Zelezinskii A.L. , Arhipova O.V. ,   St. Petersburg State University of Economics, Hodos D.V. ,   St. Petersburg State Technological Institute (Technical University), Zhukov S.K. ,   Saint-Petersburg State Institute of Technology (Technical University)
Published: December 2021

The article examines the concept of "compe-tition". The actual competitive cases and ways of competition between the largest manufacturers of digital technology are con-sidered. The author examines the competi-tion in the markets of computing processors, smartphones and home entertainment sys-tems. The article presents sales charts of competing companies and comparisons of consumer characteristics of goods that di-rectly affect their competitiveness.
THE SAIMAA CANAL IN THE INLAND WATER CARGO TRANSPORTATION SYSTEM
Authors:   State University of the Sea and River Fleet named after Admiral S.O. Makarov, Rusinov I.A. , Gogina M.A. ,   State University of the Sea and River Fleet named after Admiral S.O. Makarov, Scherbinin N.V. ,   State University of the Sea and River Fleet named after Admiral S.O. Makarov
Published: December 2021

The article deals with the research of the Saimaa Canal significance in the Finnish transport sphere. The analysis of the canal characteristics and features, which are es-sential for shipping, as well as the Saimaa Canal traffic volumes, their commodity struc-ture, the Saimaa Canal ship calls and cargo traffic pattern of change are given. The cer-tain prospects for increasing the traffic on the Saimaa Lakes and especially on the ca-nal is considered.
FEATURES OF THE REGIONAL AND ECONOMIC POLICY OF RUSSIA
Authors:   St. Petersburg State Technological Institute (Technical University), Zelezinskii A.L. , Arhipova O.V. ,   aint-Petersburg State University of Eco-nomics, Hodos D.V. ,   St. Petersburg State Technological Institute (Technical University), Fedorova A.V. ,   Saint-Petersburg State Institute of Technology (Technical University)
Published: December 2021

Regional economic policy as part of the overall socio-economic policy of the country is important for the development not only of the regions, but also for the sustainable and stable development of the country, ensuring a high-quality standard of living of the popu-lation. The well-being of the country as a whole and its population in particular de-pends on the economic development of each district.
Физическое воспитание обучающихся младших классов с использованием разнообразных средств аэробной гимнастики
Authors:   Нижневартовский государственный университет, Алексеева О.П.
Published: December 2021

Аэробная гимнастика является эффективным средством физического воспитания в младшем школьном возрасте. У данного вида двигательной активности имеются огромные потенциальные возможности ее использования в школьном учебно-воспитательном процессе. Применение разнообразных упражнений аэробной гимнастики в режиме учебного дня детей младшего школьного возраста способствуют умственному, нравственному, эстетическому и физическому развитию личности ребенка.
Тенденции применения комбинированных равновесий в современных соревновательных программах художественной гимнастики
Authors:   Национальный государственный университет физической культуры, спорта и здоровья имени П.Ф. Лесгафта, Артемьева Ж.С. , Курашова Е.А. , Гребенюк М.Е.
Published: December 2021

Статья посвящена сравнительному анализу содержания комбинированных равновесий в соревновательных комбинациях по художественной гимнастике и качества их исполнения на различных этапах подготовки. Показана важность процесса оптимизации совершенствования техники исполнения комбинированных равновесий путем учета характера влияния манипуляций предметом на устойчивость в позе.
Соревновательная деятельность в быстром нападении игроков мужской гандбольной команды
Authors:   Сибирский государственный университет, физической культуры и спорта, Бетюцкий В.М. , Зверев С.Л. , Асеева А.Ю. , Филатова Н.П.
Published: December 2021

В статье представлены показатели технико-тактических действий в быстром нападении в соревновательной деятельности квалифицированных гандболистов. Выявлено, что быстрое нападение является одним из более эффективных тактических атакующих действий в каждом матче. Отмечено, что одно и то же атакующие действие после использования в 2–3 играх теряет эффективность. Исходя из этого, нужно модернизировать быстрые атаки на протяжении всего соревновательного периода.
Анализ функционального состояния центральной нервной системы на основе показателей теста простой зрительно-моторной реакции у обучающихся ИФКСиЗ им. И.С. Ярыгина
Authors:   Красноярский государственный педагогический университет им. В.П. Астафьева, Трусей И.В. , Масанова Г.Д.
Published: December 2021

В работе представлен сравнительный анализ психофизиологических показателей девушек и женщин трех возрастных групп. С возрастом наблюдается тенденция к увеличению среднего времени реакции на раздражитель на 20 мс и увеличение доли испытуемых, имеющих высокий и выше среднего уровень показателей скорости двигательной реакции. Среди женщин в возрасте 36–66 лет доля таких испытуемых составляла 57,1%.
Методика проведения факультативных занятий по флорболу в условиях общеобразовательной школы
Authors:   Липецкий государственный педагогический университет имени П.П. Семенова-Тян-Шанского, Шкляров В.Б. , Абрамов А.А. , Старкин А.Н. , Животворев Д.С.
Published: December 2021

в статье рассматривается технология проведения факультативных занятий по флорболу с детьми младшего школьного возраста в условиях общеобразовательной школы, направленная на решение актуальной проблемы – отсутствие объективных данных о методике проведения факультативных занятий по флорболу в условиях общеобразовательной школы.