bluuebunny/crossref_metadata_2025 huggingface dataset:
Custom Shoe Sole Design and Modeling Toward 3D Printing
Authors: Zolfagharian Ali , Lakhi Mohammad , Ranjbar Sadegh , Bodaghi Mahdi
Published: November 2021

This study introduces a design procedure for improving an individual’s footwear comfort with body weight index and activity requirements by customized three-dimensional (3D)-printed shoe midsole lattice structure. This method guides the selection of customized 3D-printed fabrications incorporating both physical and geometrical properties that meet user demands. The analysis of the lattice effects on minimizing the stress on plantar pressure was performed by initially creating various shoe midsole lattice structures designed. An appropriate common 3D printable material was selected along with validating its viscoelastic properties using finite element analysis. The lattice structure designs were analyzed under various loading conditions to investigate the suitability of the method in fabricating a customized 3D-printed shoe midsole based on the individual’s specifications using a single material with minimum cost, time, and material use.
3D Bioprinting of Biomimetic Bilayered Scaffold Consisting of Decellularized Extracellular Matrix and Silk Fibroin for Osteochondral Repair
Authors: Zhang Xiao , Liu Yang , Zuo Qiang , Wang Qingyun , Li Zuxi , Yan Kai , Yuan Tao , Zhang Yi , Shen Kai , Xie Rui , Fan Weimin
Published: November 2021

Recently, three-dimensional (3D) bioprinting technology is becoming an appealing approach for osteochondral repair. However, it is challenging to develop a bilayered scaffold with anisotropic structural properties to mimic a native osteochondral tissue. Herein, we developed a bioink consisting of decellularized extracellular matrix and silk fibroin to print the bilayered scaffold. The bilayered scaffold mimics the natural osteochondral tissue by controlling the composition, mechanical properties, and growth factor release in each layer of the scaffold. The in vitro results show that each layer of scaffolds had a suitable mechanical strength and degradation rate. Furthermore, the scaffolds encapsulating transforming growth factor-beta (TGF-β) and bone morphogenetic protein-2 (BMP-2) can act as a controlled release system and promote directed differentiation of bone marrow-derived mesenchymal stem cells. Furthermore, the in vivo experiments suggested that the scaffolds loaded with growth factors promoted osteochondral regeneration in the rabbit knee joint model. Consequently, the biomimetic bilayered scaffold loaded with TGF-β and BMP-2 would be a promising strategy for osteochondral repair.
Advances in Filament Structure of 3D Bioprinted Biodegradable Bone Repair Scaffolds
Authors: Lin Chengxiong , Wang Yaocheng , Huang Zhengyu , Wu Tingting , Xu Weikang , Wu Wenming , Xu Zhibiao
Published: November 2021

Conventional bone repair scaffolds can no longer meet the high standards and requirements of clinical applications in terms of preparation process and service performance. Studies have shown that the diversity of filament structures of implantable scaffolds is closely related to their overall properties (mechanical properties, degradation properties, and biological properties). To better elucidate the characteristics and advantages of different filament structures, this paper retrieves and summarizes the state of the art in the filament structure of the three-dimensional (3D) bioprinted biodegradable bone repair scaffolds, mainly including single-layer structure, double-layer structure, hollow structure, core-shell structure and bionic structures. The eximious performance of the novel scaffolds was discussed from different aspects (material composition, ink configuration, printing parameters, etc.). Besides, the additional functions of the current bone repair scaffold, such as chondrogenesis, angiogenesis, anti-bacteria, and anti-tumor, were also concluded. Finally, the paper prospects the future material selection, structural design, functional development, and performance optimization of bone repair scaffolds.
Approaches to the analysis and synthesis of unmanned aircraft system in the research task of aerial survey of area object
Authors: Grigor’ev A.N. , Dudin E.A. , Ryabchevskiy V.Yu. , Maseev N.V.
Published: November 2021

The presented research was performed to develop a scientific and methodological apparatus for estimation of aerial survey effectiveness. The work takes into account the parameters of the unmanned aerial vehicle, of the optoelectronic onboard special complex and the spatial properties of the areal object. The result of the research of works in the field of aerial survey using unmanned aerial systems is presented. It is revealed that the analysis and synthesis of specific sets of unmanned aerial vehicles with onboard special complexes is carried out in a qualitative way according to individual technical parameters. At the same time, aggregate indicators characterizing aerial survey effectiveness are not evaluated. Models of an unmanned aerial vehicle, special airborne complex, areal object and requirements for the quality of survey materials are proposed. The assumptions under which the modeling of aerial survey of the areal object is performed are determined. On the basis of models the procedures of analysis and synthesis of aerial survey system are developed. The content of the procedures takes into account the loss of the survey resource that occurs due to the remoteness of the object and making approaches to the next shooting route in tack flight mode. The procedures allow to determine the potential effectiveness of the survey and to choose the configuration of the onboard special complex to ensure optimal performance of the survey of the areal object. The results of a computational experiment on the example of a conditionally real light high-altitude unmanned aerial vehicle are presented. The dependence of the effectiveness of aerial photography on the remoteness and spatial properties of the areal object is presented. For different conditions, the configuration of the onboard special complex, which provide optimal multi-route shooting, is determined.
Evaluation of the influence of visual features of the sighting target on the probability of detection by an optoelectronic device
Authors: Roschin D.A.
Published: November 2021

The results of studies evaluating the influence of various visual features of a sighting target on the probability of its detection by an optoelectronic device are presented. The purpose of this study is to identify the most significant visual features of the sighting target, which contribute to reducing the probability of false recognition of foreign objects with similar features by an optoelectronic device. For this purpose, the influence of such features as the color, shape and frequency of flashing of the sighting target was evaluated. According to the results of the research, it is concluded that the combination of the considered visual features provides a high probability of detecting a sighting target even in conditions of insufficient visibility and contributes to an increase in the range of its detection.
Methodology for estimating the efficiency of optical-electronic systems using an analytical model. Functions of threshold contrast and modulation transfer
Authors: Krasnov A.M. , Tregubenkov S.Yu. , Rumyantsev A.V. , Khismatov R.F. , Shashkov S.N.
Published: November 2021

Efficiency assessment is an integral part of the stages of development, testing and operation of optoelectronic systems. The lack of a unified methodology for assessing the effectiveness of optoelectronic systems leads to the fact that different assessment methods are used to compare different systems, as a result of which the results obtained are contradictory and do not provide objective data for making appropriate decisions at various stages of the life cycle of optoelectronic systems. One of the ways to solve this problem is the development of an analytical model, which can be the basis for the construction of a unified set of intellectual support for the design and maintenance of optical-electronic systems at all stages of the life cycle. The aim of the study is to form an analytical model for evaluating the effectiveness of optoelectronic systems, in terms of the functions of threshold contrast and modulation transfer. As a result, the analysis of models for evaluating the efficiency of the optoelectronic systems NVL 1975, FLIR92, NVTerm, NVTermIP and NV-IPM was carried out, and the main differences between these models were considered. The functions of the threshold system contrast and the threshold contrast of the human visual system are considered. The effect on the form of the threshold contrast function of the modulation transfer function (frequency-contrast characteristic) of the system and the external environment, as well as space-time noise, is shown. Then, a description is given of the components of the modulation transfer function of the system and the environment: the modulation transfer function of the turbulence of the atmosphere, the transfer function of the motion modulation of the optoelectronic system, the modulation transfer function of the optical system, the detector modulation transfer function; image processing modulation transmission functions. Monitor modulation transfer functions. The main parameters of the modulation transfer function, which are used to estimate the resolution of the optoelectronic system, are considered. Examples of evaluating the resolving power of various optoelectronic systems are given and the effect of smearing caused by the movement of the carrier of the optoelectronic system on the image quality for different values of exposure time is shown. The practical significance lies in the fact that the research results were applied in the development of tactical and technical requirements for optoelectronic systems, in the development of optoelectronic systems at the stages of preliminary and technical design, showed the consistency of the calculation results with the results of using existing systems.
Peculiarities of making decisions on the choice of the composition of the main hardware equipment of aviation multifunctional simulators
Authors: Mistrov L.E. , Shepovalov E.M.
Published: November 2021

The current stage of training aircraft crews (AC) is characterized by the predominance of training tasks solved with the help of aviation multifunctional simulators (AMT). AMT covers a wide range of aviation simulators designed to solve problems of planning and managing the use of hardware and software resources in solving various training tasks in the interests of training aircraft crews. Based on this, AMT are characterized by a variety of hardware that ensure the implementation of technological operations and processes for analyzing and processing information when performing educational tasks, which determined the relevance of the task of choosing their optimal composition. Purpose of the work is to develop a model for choosing the composition of hardware equipment (HSS) in the AMT structure for solving training tasks in the interests of training aircraft crews. The solution to the optimization problem of substantiating the CAO is based on the analysis of the features of the application and development of AMT based on the modernization of obsolete and new hardware equipment. The complexity of the task is due to significant computational difficulties arising from the need to provide various technological operations and cycles of information flows in the form of a certain set of elementary operations and the presence of “individual” quality criteria for each educational task. To solve it, the technological process of solving educational AMT is represented by an oriented graph, the vertices of which are the tasks to be solved, and the arcs connecting them are elementary technological operations implemented by hardware. The fulfillment of each educational task is based on the fulfillment of a certain set of elementary streams based on the implementation of the compared CAO options in the AMT structure. The search for a solution is carried out on the graph using a three-level model based on finding optimal solutions to cover the educational tasks to be solved with the available means of obsolete hardware equipment, justifying the required number of new (developed) tools and choosing their optimal composition in the AMT structure as a whole, taking into account the preferences of the persons taking decision (decision maker). The proposed methodological approach and the model for choosing the CAO that implements it provide a sequential and level-bylevel solution of optimization problems with extreme variables for a reasonable choice of the decision maker of the optimal composition of hardware in the AMT structure in the interests of solving a variety of diverse training tasks for training aircraft crews.
Model of classification of observation objects under conditions of intersection of their motion paths based on joint analysis of trajectory and polarization information
Authors: Smirnov E.E. , Pozdniakov A.A. , Parshin M.S.
Published: November 2021

Currently, one of the topical issues arising in the functioning of radar stations for various purposes is the issue of tracking complex targets, namely the case of crossing the trajectories of several observation objects. When intersecting trajectories of objects, there is uncertainty in the presence of numerous elevations caused by reflections from a plurality of reflecting surfaces or areas of space, which leads to entanglement of trajectories, that is, the detected object is accompanied by a radar along the trajectory of another object. It is also possible to trace the second object along the trajectory of the first. This case is a special difficulty, as it leads to maintenance disruptions, loss of objects and their omission. At the same time, at the classification stage, an object can be assigned to a class to which it does not belong. Therefore, how to achieve a reliable classification of objects requires the development of methods for assessing its performance. To do this, a scientific and methodological apparatus for checking the quality of radar operation was developed (in which only trajectory information was analyzed at the first stage, and joint analysis of trajectory and polarization information was carried out at the second stage), which is a simulation model implemented in the software environment MathCad 15.0. The simulation results show that with an increase in the number of tracked objects and a decrease in the distance between them, the value of the classification quality indicator decreases. This indicates a contradiction between existing processing methods and classification quality requirements and indicates the need to develop new methods that provide a given quality indicator. A possible tool to resolve the contradiction may be the use of polarization information in order to ensure the required probability of correct classification of objects, namely, when identifying elevations and extrapolating trajectories at the stage of tracking objects of observation. In order to solve the problem, the initial data for the model of classification of objects were polarization scattering matrices, on the basis of which polarization parameters were calculated and object features were formed. The results of the simulation show that the use of polarization information when tracking a large number of objects (from 10 trajectories and their intersection) provides the required level of classification quality for existing algorithms. The increase in the probability of correct classification ranged from 8% (at the edges of the radar viewing area) to 12% (in the center of the directional pattern).
Hacotization of discretization and quantization conditions in radar systems with digital phased antenna grates
Authors: Gorbunov Yu.N. , Akopyan G.L. , Burnosov R.K.
Published: November 2021

The article establishes a connection between the directional properties of digital phased array antennas (FAR) in radar systems by means of space-time signal processing, based on the use of stochastic quantization scales in time, space and level, leading to a decrease in the influence of sampling noise and quantization in the process of diagram formation and the formation of frequency selectivity "narrowed" (in the usual and spatial frequencies - angular directions) frequency channels, formed by increasing the size of spatial and temporal samples.
Software tools for analysis and synthesis of stochastic systems with high availability (XIII)
Authors: Sinitsyn I.N. , Sinitsyn V.I. , Korepanov E.R. , Konashenkova T.D.
Published: November 2021

Article is dedicated to methodological support and software tools for analysis and synthesis of stochastic systems with high availability at nonstationary (e.g. shock) disturbances. The methodology is based on Haar wavelet expansions and wavelet canonical expansions. Theory of vector complex statistical criterion is developed. Basic general vector algorithm is for complex statistical criteria worked out. Partial algorithm in case of parameters linear approximation and additive vector noises is given. Special section is devoted to software tools. Test examples and computer experiments. For shock disturbances wavelet technologies have evident advantages. Results were used for accuracy analysis and optimization in case of vector complex statistical criteria in shock stochastic information-control system with high availability.
Research and development of vacuum thin-film nanotechnology for creating electrode materials for current sources
Authors: Sleptsov V.V. , Kukushkin D.Yu. , Diteleva A.O. , Tsyrkov R.A.
Published: November 2021

Traditional thick-film production technology CCS for almost 20 years not only does not provide the necessary dynamics of growth of specific energy intensity, but also tends to reduce it in order to increase the safety of operation of products. The development of thinfilm technologies and new electrochemical systems with a higher resource (more than 10,000 charge – discharge cycles-20 years of operation) and a higher specific energy (500…1000 W∙h/kg) is considered to be the most important breakthrough tasks at the moment. A promising direction is considered to be the use of elastic conducting matrices based on carbon in the creation of nanocomposite structures. To develop a complex of vacuum thin-film nanotechnologies for creating electrode materials for current sources based on a flexible carbon matrix with a highly developed surface. A complex of vacuum thin-film nanotechnologies for creating electrode materials for current sources has been Developed. Based on the developed electrode material, chemical current sources (CCS), ultra-high-capacity capacitor structures (UCS) and pseudocapacitors and hybrid capacitors were manufactured and studied. Analysis of the results of specific energomasha super powerful capacitor structures (UCS), has superb capacitor structures with metallization, hybrid UCS based on cobaltate lithium capacitors with pseudoeunotia showed that the specific energy consumption of hybrid UCS based on cobaltate lithium capacitors with pseudoeunotia oxide of manganese, have a value exceeding the specific energy of UCS 4.5 and 4.8 times, respectively. The developed technology allows increasing the energy consumption of cells and reducing their internal resistance.The developed complex of vacuum thin-film nanotechnologies allows creating electrode materials based on a flexible carbon matrix with a highly developed surface. The resulting electrode materials can be used in energy storage.
„Ratio Generationis” – Szempontok a felelős generációkutatáshoz
Authors: Csutorás Gábor Ákos
Published: November 2021

Huge amount of literature has been published in recent years on topic of generation researchbut of varying quality. There is a significant interest in the topic, although an increasing amountof contradictory and methodologically questionable results have come to light. People developprejudices and beliefs based on popular media, which could be counterbalanced by scientificworks, but there is a noticable amount of thorough criticism against them. It is still a question,whether generation is the proper response to certain phenomena or we have just „generated” itand most charachteristics are rather related to age or life span? Cautious research is complicatedand lengthy, therefore many either choose to perform superficial research or to go so in-depththat does not allow answering problems and return to just individual differences. Some concludeby refusing the generational approach altogether. In these circumstances a kind of „responsible”generational research is to be suggested, which turns from dead ends to the scientific way andfinally tries to find „ration in generations” keeping in mind all the criticism of the approach.I summerize cosiderations in my work to find this right direction.
Lung Cancer Diagnosis using Transfer Learning
Authors: Mohite Aashka
Published: November 2021

Lung cancer is unquestionably a lung-influencing chronic condition that significantly hampers the respiratory system. It is the second most dangerous disease which causes increase in death rate. To resolve this issue, we had planned to create a very Convolutional Neural Network using Transfer learning to specifically classify the lungs CT scans as normal, malignant, or benign in a subtle way. A dataset of 1100 lung CT scans is used for this purpose. For the most part, five Transfer Learning architectures are compared extensively in this classification such as MobileNet, VGG16, VGG19, DenseNet-201 and ResNet-101. Out of which, DenseNet-201 performed the best. The proposed strategy achieved a mean accuracy of 53 percent in the trials and 43% of  mean F1-score, mean precision and mean recall.
Professional Development Appraisal And Teacher Performance Among Secondary Schools In Migori County
Authors: Atieno Otieno Teresa , Phylisters Matula , Ursulla Okoth
Published: November 2021

Performance appraisal forms an important practice in human resource management. In Kenya, the Teacher Performance Appraisal and Development (TPAD) has been used since 2012 as an appraisal approach to evaluate teachers’ performance. However, the effectiveness of performance appraisal in enhancing teacher productivity as reflected in students; academic achievement has not been documented in Kenya and remains questionable. In Migori County, student performance in KCSE examination has been comparatively low. The objective of this study was to analyse the influence of professional development appraisal on teacher performance among public secondary schools in Migori County. Specific objectives were to determine the level of teachers’ performance after evaluation, and to establish how appraisal of professional development influence performance of teachers. Descriptive survey design on a target population of 276 principals and 2961 teachers was employed in the study. Krejcie and Morgan (1970) table was adopted to derive a sample size of 342 teachers and 57 principals stratified based on school category population. Questionnaire and interview guide were used to collect data from teachers and principals respectively. The study found that there was a significant difference in the mean of teacher’s performance after appraisal and the category of teachers’ schools. The study also found that 64.1% changes in teachers’ performance is attributed to professional development appraisal (R2 =0.641), and that professional development appraisal (β=0.803) is a significant predictor of teacher performance {F (1, 278) =493.200, P<0.05}. The study concludes that professional development appraisal significantly contributes to performance of teachers in secondary schools.
O „przepływach intelektualnych”: spotkania dialogowe
Authors: Kafar Marcin , Marynowicz-Hetka Ewa
Published: November 2021

W artykule przedstawiamy analizę mechanizmów „przepływów intelektualnych” dokonujących się w zderzeniu z „inną” kulturą myślenia. Analiza ta opiera się na cyklu rozmów (spotkań dialogicznych) poświęconych odkrywaniu różnych wymiarów transformacji świadomościowych. W tym procesie autorzy odkrywają: słownik/ terminologię sprzyjające zerwaniom i „przepływom intelektualnym”, aspekty relacji transformacyjnych (np. „odczucie braku”) oraz narzędzia analizy wypełniania braków w formie koncepcji „progów” w „przepływach intelektualnych”.
Fortalecimiento competencia interpretativa para potencializar procesos de aprendizaje en lenguaje y matemáticas
Authors: Montañez-Gómez Yaned , Rubio-Torres Claudia
Published: November 2021

Para contribuir con los retos de la educación del siglo XXI, sumado a los cambios en el conocimiento y a la manera de enseñar y aprender de las nuevas generaciones vinculadas a un mundo en continuo crecimiento y amplia accesibilidad a la comunicación e información que incide a nivel global en la interpretación de diferentes clases de texto procedentes de cualquier lugar del planeta y de todo tipo de culturas, religiones e ideologías, es necesario que la escuela capacite educandos en lectura interpretativa de textos para discernirla , por tal razón, nuestra investigación estableció como objetivo implementar una estrategia didáctica que permita fortalecer las habilidades de la competencia interpretativa de un texto para potencializar los procesos de aprendizaje de los estudiantes, que modifiquen sus proyectos de vida y mejoren el rendimiento académico de la institución educativa. Es una investigación acción de corte cualitativo, partió de autorreflexiones de las prácticas educativas con los estudiantes del grado 9-1, para formar estudiantes competentes con aprendizajes significativos. Para el análisis de resultados se utilizó un método mixto, se establecieron dos categorías de estudio, encontrando que la estrategia didáctica implementada fortaleció la competencia interpretativa de los textos para asimilar el conocimiento.
O SISTEMA BRASILEIRO DE PRECEDENTES: CONSTITUCIONALIDADE, FUNDAMENTOS DE VALIDADE, LIMITES DA VINCULATIVIDADE E DEMOCRATIZAÇÃO DO PROCEDIMENTO DE FORMAÇÃO DAS RAZÕES VINCULANTES
Authors: Cesário João Humberto
Published: November 2021

O presente artigo parte da premissa de que o sistema de precedentes instituído pelo Código de Processo Civil de 2015 é constitucional. Aduz, na sequência, que a validade do mencionado sistema reside tanto na autoridade da Corte que constitui o precedente, quanto na integridade jurídica imprescindível à sua legitimação. Assevera, de outro tanto, que a vinculatividade dos precedentes brasileiros, embora forte, está sujeita a excepcional derrotabilidade. Conclui, finalmente, que o Poder Judiciário, uma vez que não é representativo, mas sim contramajoritário, deverá zelar permanentemente pela democratização do processo de formação dos seus precedentes.
EL INTERNET EN LAS COSAS (IOT) Y, EL I. O. B. (INTERNET OF BODIES) Y ES UNA HERRAMIENTA LEGAL EN TIEMPO DE POST- PANDEMIA: UN BREVE ANALISIS SOBRE SU EFECTO EN LA VACUNACIÓN DEL COVID-19 EN ESPAÑA TANTO PARA LAS PERSONAS NACIONALES Y, LAS PERSONAS EN SITUACIÓN IRREGULAR ADMINISTRATIVA EN ESPAÑA
Authors: Ferrer Salvador Morales
Published: November 2021

Desde que se inició, la pandemia del Covid-19, mundialmente en este Siglo XXI, el internet tiene un valor inmenso desde el internet en las cosas (IOT), hasta el internet of bodies (I.O.B.), por lo cual puede sea aplicado a las personas en sus nuevas tecnologías como en Facebook o, Instagram. Por lo que, estás personas están controlas indirectamente. Aparte, lo que ofrecen los chips de los aparatos electrónicos como la geolocalización. Por tanto, se trata de que todas las personas vacunadas sean nacionales o, en situación irregular en España, se conocen sus movimientos incluso en los países integrantes de la Unión Europea. Por ende, las personas en situación irregular administrativa en España pueden surgir una nueva figura jurídica el arraigo sanitario, todo lo contrario de las personas no vacunadas en España, pues tendrán una limitación de movilidad, incluso en la Unión Europea.
UMA BREVE ABORDAGEM HISTÓRICA DO INSTITUTO DO REGISTRO IMOBILIÁRIO
Authors: Lóssio Claudio Joel Brito , Sampaio Francisco Isack Alves
Published: November 2021

A atividade registral imobiliária, através da escrita, tem seu nascedouro no mundo pela primeira vez em algumas civilizações antigas de forma fragmentada. Percebe-se a importância e a antiguidade da atividade de notas e de registro de imóveis, pois estas nasceram a partir da necessidade de se atribuir segurança às transações imobiliárias, e para proteger o direito dos adquirentes e contribuir para a preservação da paz social. A atividade registral imobiliária, é adstrita ao registro de alguns destes diversos tipos mencionados de escrituras públicas, no Registro de Imóveis, que opera a publicidade através do sistema do fólio real, consubstanciado na matrícula imobiliária, a legítima identificação jurídica de um determinado imóvel. O sistema de registro imobiliário brasileiro em relação à sua forma de organização na transmissão da propriedade, tem se mostrado bastante seguro e eficiente. No tocante à modernização, as serventias extrajudiciais têm enfrentado grandes dificuldades, diante da necessidade adequação à lei federal criadora do registro de imóveis eletrônico. os cartórios de registros necessitam acompanhar o que é determinado por lei, e ainda assim promover um processo de evolução interno, com ações educativas adequadas para as operações de registros, proteção de dados pessoais, ciberdefesa, e ainda assim ter em sua gestão a busca de sistemas que possa contribuir tanto com a eficiência do funcionamento interno quanto também com a qualidade de trabalho da equipe da serventia extrajudicial.
On the prospects of the development of string transport for freight transportation
Authors:   Unitsky String Technologies, Inc., Unitsky Anatoli E. , Tikhonov Dmitry N. ,   Unitsky String Technologies, Inc., Tsyrlin Michael I. ,   Unitsky String Technologies, Inc.
Published: November 2021

This work presents the criteria for choosing a transport for the transportation of cargo. The peculiarities of SkyWay string transport are indicated. The description of various types of string cargo transport is given. The advantages over the conventional modes of transport are presented.
Influence of temperature and beta-carotene on the processes of hydrolysis and oxidation of triacylglycerins in extra virgin olive oil during storage
Authors: Kolodiaznaia V. S. , Alnakoud M. , Аlekseeva Т. В.
Published: November 2021

The article presents the results of studies on the effect of antioxidant beta-carotene and storage temperature on hydrolytic and oxidative processes occurring during storage of extra virgin olive oil obtained from olives grown in the soil and climatic conditions of Syria. The aim is to study the effect of temperature and beta-carotene on the kinetics of reactions of hydrolysis of triacylglycerides (TAG) and oxidation of free fatty acids (FFA) of olive oil during storage. The object of the study was extra virgin olive oil obtained from olives grown in the soil and climatic conditions of Syria according to the generally accepted technology (harvest 2019). Control sample № 1 (without the addition of antioxidant) and experimental samples with the addition of beta-carotene in the amount of 400 (№ 2) and 600 mg/100 g (№ 3) were stored at a temperature of 18 °C for 7 months. Oil sample № 4 without the addition of antioxidants was stored at 4 °C. In the samples under study, the acid value was periodically determined by the titration method, according to the change in which the formation of free fatty acids during the hydrolysis of TAG, as well as the peroxide value characterizing the formation of FFA oxidation products, was estimated. The organoleptic assessment of the oil quality indicators according to the studied descriptors was 5 points. The rate constants of TAG hydrolysis and oxidation of FFA in olive oil have been calculated. It has been shown that during the storage of experimental oil samples the hydrolytic and oxidative processes of TAG significantly slow down with the addition of the antioxidant beta-carotene. It was found that minimal changes in the content of TAG hydrolysis products and FFA oxidation during storage of olive oil at a temperature of + 18 °C are characteristic for samples containing 400 mg/L of beta-carotene and for oil samples stored at a temperature of + 4 °C without the addition of an antioxidant. Expiration dates of olive oil are substantiated depending on the dose of beta-carotene and storage temperature
Dessert butter
Authors: Dolmatova O. I. , Rogova A. A.
Published: November 2021

Butter is a leading consumer choice. This is facilitated by its attractive composition and taste, good digestibility, as well as compatibility with almost all food products. However, butter is not recommended by nutritionists for older people due to its high calorie content, increased mass fraction of saturated fatty acids and cholesterol. Some of the consumers of the young and middle generation are almost completely abandoning butter, preferring low-fat products. The diet of a person adhering to a healthy diet should include foods enriched with functional ingredients. The paper proposes a technology for producing butter with barberry berries. Fruits contain carbohydrates, pectin substances, organic acids, macro- and microelements, vitamins, etc. For the production of butter with barberry berries, a method of converting high-fat cream has been chosen. The oil has a high degree of dispersion of moisture and a low content of the gas phase, is less susceptible to bacterial contamination in comparison with the analogue produced by the churning method. The resulting butter can be attributed to the "Dessert" group. Dessert butter was obtained as follows. Dairy and non-dairy raw materials were accepted, their quality was assessed, milk was separated, and the resulting cream was pasteurized. Then, high-fat cream was obtained by secondary separation, and their normalization was carried out. A feature of the production of butter Dessert is the introduction of flavoring components into the normalized mixture - puree from barberry berries and granulated sugar according to the recipe. Further, the normalized mixture was converted into oil and directed to thermostatting. Organoleptic, physicochemical and microbiological indicators of the quality of Dessertnoye butter have been studied. The addition of barberry berries to butter contributes to the enrichment of its composition with vitamins and a decrease in calorie content. The economic efficiency and feasibility of the production of Dessert butter consists in saving the raw milk used by replacing the fatty part with vegetable components.
Effect of the Dewaxol 7801 depressant-dispersant additive on summer diesel fuel
Authors: Iovleva E. L.
Published: November 2021

Obtaining winter diesel fuel is an expensive and complex process, in which paraffinic hydrocarbons are removed from the fuel. Today, the consumption of winter diesel fuel in Russia has reached its maximum, and the volume produced is not enough to meet the needs of the Russian market. Therefore, obtaining winter diesel fuel from summer grades, by adding a depressant additive, remains relevant. The most common depressants are ethylene vinyl acetate copolymers. The effectiveness of depressant-dispersant additives depends on the fractional and group hydrocarbon composition of diesel fuel. Also, the physicochemical characteristics of the paraffins contained in the fuel play an important roleDuring long-term storage of fuel, depressants do not prevent fuel stratification. Therefore, together with a depressant additive, a paraffin dispersant is used, the composition of such additives includes mainly amides and imides of mono- and dicarboxylic acids. Dewaxol 7801 depressant and dispersant additive is a specially selected composition based on surfactants and copolymers in a hydrocarbon solvent. The use of this additive makes it possible to improve the low-temperature performance of diesel fuel without affecting other properties. From the low-temperature properties of diesel fuel, we have chosen the limiting filterability temperature, since it is this temperature that characterizes the real working conditions. When the maximum filterability temperature is reached, the n-paraffin crystals reach sizes exceeding the pore diameters of the filters, the fuel is not pumped through the fine filters of the high-pressure fuel pump, and the fluidity of the fuel deteriorates. The article shows the effect of Dewaxol 7801, a depressant-dispersant additive, on summer diesel fuel, in various concentrations and when the fuel is heated from 40 to 60 degrees in steps of 10 degrees.
Features of diffusion processes in the preparation of prepregs by the method of layered application of components
Authors: Cheremukhina I. V.
Published: November 2021

The modern production of products made of composite materials based on thermosetting binders is mainly based on the use of pre – impregnated reinforcing technical threads-prepregs. The binder used for such semi-finished products must meet two important technological requirements: have a low reactivity (high viability) when stored in the temperature range from -5 to +25 ° C and the ability to adjust the curing time at the molding temperatures of the product. To eliminate the disadvantages of the traditional method of obtaining polymer composite materials, to improve their strength characteristics and reduce the cost of the resulting reinforced composites, it is proposed to use the method of layered application of components. The essence of the method consists in layer-by-layer impregnation of the fibrous filler with a binder solution, and then a developed curing system consisting of an amine hardener that prevents the interaction of the hardener with the resin under storage conditions and protective polymer emulsions. The binder-filler system is activated only at an elevated temperature under curing conditions. It is established that the optimal parameters for processing by direct pressing of the pre-pegs components obtained by the method of layer deposition are a pressure of 15 MPa and a temperature of160-170 ?С with a pressure exposure of 15 minutes. If you get products by winding, then for such products, heat treatment for 6 hours at a temperature of 120 ?С is optimal. In the conditions of forming products, that is, at an elevated temperature and at an increased pressure, the mutual diffusion of components occurs due to the movement of oncoming flows. Oligomeric molecules from the resin volume diffuse from the inner layer to the outer one, and the components of the curing system meet them from the outer layer to the inner one. The method of layered application of components makes it possible to create a macroheterogenic system of interpenetrating polymer meshes in the contact area of sequentially applied layers. The result of the research is an increase in the shelf life, the viability of prepregs (up to 10 days) and an improvement in the complex of physical and mechanical properties of composites: the destructive stress during static bending increases to 60 %, during dynamic bending (impact) - up to 50 %. The use of carboxymethylcellulose as a protective polymer provides higher indicators of the studied properties than when using butadiene styrene latex as a protective polymer..
Stimulation and motivation of personnel in the project management system
Authors: Artemieva V. S. , Ryabova E. P. , Sabetova T. V.
Published: November 2021

Project management requires attention to planning and providing operations with resources of all kinds, including intellectual and human resources. Human resources in many projects are responsible for most of their success or failure, as they are able to think, make independent, including creative decisions, and coordinate the involvement and use of all other types of resources. The authors introduce the concept of “human component of project resources”, which is understood more broadly than labor resources, and analyze the methods and stages of managing this element of project support. This provision is the greatest problem in organizations, the main activity of which is based on a cyclical principle, however, one-time final projects are not rare in them. If the organization does not have the opportunity to hire external specialists to implement them, it is extremely important to rationally organize the involvement of employees in the work on the project and stimulate their work. The authors identified the most difficult stages of staffing projects in terms of organizing activities and motivating the people involved. For each stage, the sources and formats of problems and obstacles to the successful implementation of projects are described, as well as some recommendations for their mitigation are given. However, the authors emphasize that a single methodology for eliminating the identified potential problems cannot exist due to objective reasons. However, understanding of the main aspects that can generate these problems can make it easier for managers to diagnose, prevent or correct them in a timely manner.
Development of public-private partnership mechanisms in the grain product sub-complex
Authors: Espolov T. I. , Tireuov K. M. , Bogomolova I. P. , Мizаnbеkоvа S. K.
Published: November 2021

In the context of the active entry of Kazakhstan into the world economy, the growing shortage and decline in the quality of raw materials and the related rise in prices for grain and bakery products, the grain-product subcomplex of the domestic agro-industrial complex is of particular importance. The article notes that the development of production in various sectors and spheres of the economy of Kazakhstan requires the search and use of new, more efficient forms of implementation of production and economic activities. One of the key methods of solving this problem is the integration of commodity producers, which makes it possible to unite in a single complex all the links of the reproduction cycle in the technological chain “production of raw materials - output of finished products”. It is emphasized that domestic and foreign experience has proved that integrated education, formed on the basis of the principles of public-private partnership, achieves a high level of efficiency and competitiveness. For the successful implementation of public-private partnership projects in the grain product sub-complex, an in-depth study, generalization and systematization of the experience of using this mechanism by both national and foreign companies that have achieved high results in this area is required. Currently, public-private partnership continues to remain at the initial stage of development, which is largely due to the specific high-risk features of the functioning of the branches of the grain product sub-complex. These circumstances emphasize the importance of a detailed analysis of methods and tools for increasing the competitiveness of enterprises and organizations of the domestic grain products subcomplex, first of all, targeted investment in the development of production.
Evaluation of the cost-effectiveness of fmea analysis (assembly of aircraft tail as-semblies at PJSC VASO)
Authors: Salikov Y. A. , Samogorodskaya M. I.
Published: November 2021

The problems of improving the quality of technological processes in domestic enterprises due to their high relevance are reflected in numerous publications of both theoretical and practical nature. However, the performance assessment procedures in the standards are schematically not properly spelled out. This makes it difficult in practice to choose evaluation mechanisms and methods. The priority mechanism of improvement of the enterprise's activity in the field of quality is measurement of efficiency and efficiency of the current quality management system. In our opinion, any activity aimed at improving quality should be economically justified at the stage of its planning. The article proposes a mechanism for assessing the cost-effectiveness of using one of the tools of quality management – analysis of the types, consequences and causes of potential consequences of the industrial production process. The purpose of this analysis is to ensure that all process quality requirements with increased risk are met by developing corrective measures to eliminate the occurrence of probable failures. The article provides an example of such a process-specific analysis. The presented mechanism for assessing the economic efficiency of QMS is based on the real financial performance of the enterprise and can be used at domestic industrial enterprises to measure the costs and results of investments in product (work, services) quality management.
Preparation of glucose-fructose syrup from yacon
Authors: Romanyuk T. I. , Chusova A. E. , Tararykov M. P. , Matvienko N. A.
Published: November 2021

The use of inulin-containing raw materials for the production of glucose-fructose syrup helps to significantly reduce the amount of glucose in it, and increase the proportion of fructose to 97%. The purpose of the research is to study the process of obtaining glucose-fructose syrups by bioconversion of inulin - containing raw materials-yacon. Depolymerization of fructans is carried out by the enzyme inulinase, which hydrolyzes the polymer to fructose and sucrose. The object of the study was yacon root vegetables with an inulin content of 17.3 %, the enzyme preparation inulinase from A. awamori 2250. The rational mode of hydrothermal treatment of yacon tubers is: temperature-85 C, duration-30 minutes, hydromodule-1: 0.5. Rational modes of saccharification of yacon with the enzyme preparation inuloavamorin P10x: pH 5.5; dosage of the enzyme preparation 14 units per 1 yacon inulin, temperature 50 oC for yacon, duration of hydrolysis 3.5-4 hours. Thus, we have selected rational modes of saccharification of yacon with the enzyme preparation inuloavamorin P10x: pH 5.5; the dosage of the enzyme preparation is 14 units per 1 inulin of yacon, the temperature is 50 oC for yacon, the duration of hydrolysis is 3.5-4 hours. The resulting fructose-glucose syrup, which is a viscous liquid without sediment and foreign inclusions. The color – from yellow to light brown, with varying intensity, the taste is sweet with no bitterness. The smell is usually absent, while a light fruity or caramel flavor is allowed. According to the physical and chemical properties of fructose-glucose syrup has the following indicators: dry substances-70-80 %; reducing substances-88-90% in terms of absolutely dry matter; fructose-87-89% in terms of abs. dry matter; glucose-1% in terms of abs. dry matter; residual inulin content-1-2% in terms of abs. dry matter; protein substances - 6-6. 5% in terms of abs. dry matter; ash content – 4% in terms of abs.dry matter. The energy value of fructose-glucose syrup is 315 kcal/100 g.