complex methods
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2022 ◽  
Author(s):  
A. Sychugov

Abstract. This work is devoted to improving the quality of engineering design solutions in mechanical engineering on the basis of the comprehensive qualimetric evaluation of ‘shaft’-type part that takes into account cost, complexity, design and technological unification of the parts.


2021 ◽  
Vol 6 (4(62)) ◽  
Author(s):  
Anna Zhaldak ◽  
Mariia Krasovska

The object of research is a set of stages of processes, used in the application of hunting as a method of closing vacancies. Such stages include: sources of search for candidates, ways of their interest formation, telephone conversation as an interview, negotiations and compilation of statistics with direct transfer of information to the director of the company. In the course of the study, such general scientific and specific research methods as analysis and synthesis, induction, deduction, as well as methods of comparison, observation and a systematic approach, were used. These methods are to determine the results and dynamics when recruiting strategies are changed or when they are combined. With the help of comparison methods and a systematic approach, it was possible to determine the optimal strategy for closing the required number of vacancies in the future. Using the observation method, it was possible to consider the dynamics of indicators from each selection method separately or in different combinations with each other. Among the complex methods, an analysis was used, which allowed to understand the dynamics of indicators and draw conclusions based on them on each of the options for implementing the methods. With the help of induction on the basis of a set of conclusions about each of the options separately, a generalized conclusion was made about the further rationality of the method of hunting as effective for businesses. The simulation allowed us to develop a strategy for the phased implementation of hunting based on direct search and understanding of its difference with the latter. With regard to theoretical methods, in the process of research the transition was made from the definitions and general provisions of the hunt to a specific consideration of the method in the enterprise and its direct implementation. The result of all studies was: – summary of theoretical aspects of headhunting as an effective method of attracting staff; – effective change of dynamics of indicators at the enterprise during introduction of hunting and its combination with direct search; – a developed strategy for the phased implementation of the hunt to increase the effectiveness of the method.


2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Dagmar DLOUHÁ ◽  
Viktor DUBOVSKÝ

Hydrical reclamation of the residual pit of Most-Ležáky is part of the comprehensive revitalisation of the land affected in the past bymining activity with an area of 1264 ha. Thus, in terms of remediation and reclamation, the most appropriate way to reclaim theresidual pit, as one of the final stages of the long-term reclamation activities that have been going on in the area for more than half acentury, occurs under the given conditions. The Lake Most, our study area, was planned and created as a hydric recultivation of theformer surface Most-Ležáky mine located near the town of Most, in the foothills of the Ore Mountains, approximately 80 kilometersnorthwest of the capital of the Czech Republic - Prague. The Lake Most represents extensive hydric reclamation, which is unique in thesense that it does not have a natural inflow and runoff, therefore an artificial feeder from the Ohře River had to be built. The main goalof the ongoing research is to construct a mathematical model predicting the water balance of Lake Most. Therefore, it is important toseparate amount of water that is lost by the evaporation and amount of water that is lost into the subsoil. If we do not wish to use onlytemperature equations but more complex methods and equations to calculate evaporation instead, we need to have relative humidity,atmospheric pressure, wind speed, and daylight length values. In addition to the climatic data needed to calculate the evaporation,the amount of precipitation is needed to construct the balance equation of the area. An important objective in planning all hydricreclamations is to ensure their long-term sustainability, which is based on a detailed description of the study area's climate and localhydrological conditions. In our article we focus on assessing the evolution of climate in the area of this hydric reclamation. We haveprocessed a long-term series of measurements in monthly averages from the Kopisty meteostation data provided by the Institute ofAtmospheric Physics of the CAS.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Mingliang Li ◽  
Yidong Chen ◽  
Yujie Mao ◽  
Mingfeng Jiang ◽  
Yujun Liu ◽  
...  

Dilated cardiomyopathy (DCM) is a cardiomyopathy with left ventricle or double ventricle enlargement and systolic dysfunction. It is an important cause of sudden cardiac death and heart failure and is the leading indication for cardiac transplantation. Major heart diseases like heart muscle damage and valvular problems are diagnosed using cardiac MRI. However, it takes time for cardiologists to measure DCM-related parameters to decide whether patients have this disease. We have presented a method for automatic ventricular segmentation, parameter extraction, and diagnosing DCM. In this paper, left ventricle and right ventricle are segmented by parasternal short-axis cardiac MR image sequence; then, related parameters are extracted in the end-diastole and end-systole of the heart. Machine learning classifiers use extracted parameters as input to predict normal people and patients with DCM, among which Random forest classifier gives the highest accuracy. The results show that the proposed system can be effectively utilized to detect and diagnose DCM automatically. The experimental results suggest the capabilities and advantages of the proposed method to diagnose DCM. A small amount of sample input can generate results comparable to more complex methods.


The study of aging and cognition has grown tremendously over the past 50 years, developing from a field dominated by experimentally based information-processing traditions to one represented by a more mature approach both conceptually and methodologically. A quick examination of relevant research over the last 10 years reveals a growth in integrative approaches incorporating behavioral, neuropsychological, and social information. In addition, the concurrent recognition of limitations associated with simple cross-sectional age-group comparisons along with the use of more complex methods has resulted in the development of increasingly sophisticated research designs and analytic tools focused on understanding a multitude of potential mediators and moderators of cognitive change. This all has led away from a monolithic—often negative—view of cognitive aging to one that is more nuanced and sensitive to contextual factors. This recent shift in the psychology of aging discipline from describing cognitive aging in terms of limitations into one focused on understanding the factors associated with adaptive functioning in later life is a prime inspiration for the present volume. Thus, an emphasis here is on understanding both the factors underlying individual differences in trajectories of change in cognitive functioning in later life and the nature of compensatory mechanisms developed by most successful and active middle-aged and older adults through their experiences in dealing with complex tasks. This includes the consideration of motivational factors as a driver of both cognitive change and adaptive functioning. The 15 contributions offer unique insights and highlight innovative methodological approaches that have been used to study these issues.


2021 ◽  
pp. 44-53
Author(s):  
А.А. Беспалько ◽  
Д.Д. Данн ◽  
М.В. Петров ◽  
Е.К. Помишин ◽  
Г.Е. Уцын ◽  
...  

Mechanical-electrical and acoustic-electrical complex methods of testing cracking while changing the stress-strain state in dielectrics are discussed on the example of rock samples. The paper discusses the results of numerical and experimental studies of changes in the electromagnetic responses parameters under the pulse deterministic acoustic excitation of rock samples with different composition and texture. Also the results of mathematical calculations of the stress concentration on cracks located along the sample axis are presented, perpendicular to which deterministic acoustic pulses were introduced. The experimental studies results of sample electromagnetic emission with containing calcite and magnetite under uniaxial compression to fracture are shown. Regularities in the electromagnetic signals amplitudes changes during acoustic sounding in the process of «stepwise» uniaxial loading by compression to destruction are given.


2021 ◽  
Vol 3 (3) ◽  
pp. 99-123
Author(s):  
Veronika S. Karyaginа ◽  

Introduction. The increased interest in modern Russian legal science towards the problems of moral harm compensation, while having been resulted from the widespread use of this category within legislation and court practice, determines the need for its conceptual research within housing law due to its special significance for being a judicial remedy to housing rights, which is important not only for legal science in general, but also for regulatory enforcement, as well as for further improvement of housing legislation. Insufficient regulatory regulation of compensation for moral harm taking into account the specifics of housing law and the lack of a deep scientific theory has caused law enforcement difficulties in implementing this method of protecting housing rights. Theoretical Basis. Methods. The purpose of this paper is a comprehensive study of conceptual and practical challenges towards moral harm compensation as a remedy to housing rights, the study is based on the analysis of its scope and justification of universality for the protection of housing rights diverse in legal nature. The methodological basis of the paper consists of both general scientific methods (dialectical method, induction, deduction, analogy, analysis, synthesis) and special methods of scientific research – system and complex methods of scientific knowledge. System method allowed to consider the scope of moral harm compensation, it has made possible to determine the internal links of this method of housing rights protection with other elements of housing law system (other methods of remedy, contractual and non-contractual obligations, rights in rem, etc.). Complex methods allowed to make a comprehensive assessment and identify features of the application of moral harm compensation as a remedy to housing rights in different areas of housing relations, and also to determine its interdisciplinary nature. Results. The result of the study reflects the conclusion that industry characteristics of housing rights, due to the specificity of the object of housing rights, distinguish in most cases the derived nature of demands on moral harm compensation from claims for property damage caused to residential premises, and determine the suitability of the application of moral harm compensation to protect the property rights of parties within housing relations only in cases provided for in a law. Moral harm is an independent consequence of violation of housing rights of citizens, that is why it can be compensated independently, regardless of the presence of property damage or along with property damage. Discussion and Conclusion. Court practice reveals a small number of independent claims for moral harm compensation when housing rights are violated. The complex nature of subjective housing rights has revealed a close connection of some property rights of subjects of housing relations with personal non-property rights and intangible benefits, and thus creates the basis for claims for moral harm compensation. Considering the fact that the concept of “housing rights” is a collective notion combining subjective rights various by legal nature (constitutional, civil, social security rights, etc.), the object of which is a dwelling premise, then at that point the possibility to apply for their protection a moral harm compensation proves the interbranch nature of moral harm compensation as a remedy and the universality of its application for the purpose to restore violated housing rights.


2021 ◽  
pp. 3-21

The article provides a structural analysis of the titles “Between Two Doors” by Utkir Khoshimov, “Eternal Gates” by Isajon Sultan and “Rebellion and Humility” by Ulugbek Hamdam. The author explains the writers’ creative goal in the title of a work of art, the role of plot elements and the composition of novels in revealing the essence of the title. Criteria that are important for naming the author’s works are classified, and chronotopic representation is analyzed. In the course of the research, the principles of the structural method were applied, the relevance of the title of works to events and the direction of each storyline in revealing the content of the title were described. The analysis of the works proves that each expresses the essence of the work, the role of the title in the structure of the text is unique, that is, before the text, the title is the first semiotic sign seen by the reader, as well as the meaning of the title mediates between the reader and the work. A creative comprehension of the chronotope as a means used for arranging the work composition, structure, and constructing an epic field of the text demands a special approach to understanding the aesthetic character of the work. Since the chronotope includes all the elements of a fictional work, it is impossible to present the plot, composition, conflict, system of characters, feelings and the mood of the characters without the description of the chronotope. The chronotope is accepted to be one of the poetic means to demonstrate the reality as well as to be a literary process that is basic for the expression of the reality in the compositional construction and illustration of the plot relying on the writer’s intention and the ideological conception of the literary work. The literary time enables to cognate the literary world picture created by the author in terms of the descriptive subject and object of the work. Utkir Hoshimov’s “Between Two Doors”, Isajon Sultan’s “Eternal Gates”, and Ulugbek Hamdam’s “Rebellion and Humility” were selected as the object of the research. The article uses comparative-typological, structural and complex methods of analysis.


2021 ◽  
Author(s):  
F. Purnawarman

Mubadala Petroleum (pipeline operator) responded to a pig stuck in a 312 km subsea gas pipeline. A bi-di pig was found to be stuck and after being rescued, the bi-di pig discs were found to be dented. An investigation and assessment are conducted to found what causes pig stuck, to solve the issue of a pig stuck, and to execute all the processes during pipeline operation as effectively and safest way as possible. The investigation started by defining what makes dented bi-di pigs, is an object inside the pipeline or pipeline deformation. A series of conformity techniques are applied by calculation to predict exact pig stuck location, using the backpressure method. A series of inspections were conducted from simple to complex way. From a smart pig that resulted from pig damage to side-scan sonar (SSS) inspection, and visual inspection at predicted location due to cost and time limit. The result is the investigation and assessment process to find dent location within 312 km seabed are executed in a time effective and cost reduced way, under 2 years for all activity for technical process and field execution duration. The sequence also escalating from lowest cost and easiest methods (engineering calculation) to the highest and more complex methods and cost (inspection and survey). The accurate result of prediction confirmed by the dent location and damages at KP 111.89 and 30 meters water depth. The investigation methodology also complies with the requirement of regulation, company specs, standard/code, and engineering best practices. The benefits of this paper are as a reference to conduct series of pipeline damage investigations for a long-distance and remote subsea pipeline. The investigation sequence can apply to many cases with accurate prediction to reduce investigation cost, time, complexity, and risk.


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