hierarchical structuring
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2022 ◽  
Vol 163 ◽  
pp. 106625
Author(s):  
Miguel Martinez-Calderon ◽  
Thomas A. Haase ◽  
Nina I. Novikova ◽  
Frederick Steven Wells ◽  
Jeffery Low ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Gianluca Botter ◽  
Filippo Vingiani ◽  
Alfonso Senatore ◽  
Carrie Jensen ◽  
Markus Weiler ◽  
...  

AbstractLooking across a landscape, river networks appear deceptively static. However, flowing streams expand and contract following ever-changing hydrological conditions of the surrounding environment. Despite the ecological and biogeochemical value of rivers with discontinuous flow, deciphering the temporary nature of streams and quantifying their extent remains challenging. Using a unique observational dataset spanning diverse geomorphoclimatic settings, we demonstrate the existence of a general hierarchical structuring of river network dynamics. Specifically, temporary stream activation follows a fixed and repeatable sequence, in which the least persistent sections activate only when the most persistent ones are already flowing. This hierarchical phenomenon not only facilitates monitoring activities, but enables the development of a general mathematical framework that elucidates how climate drives temporal variations in the active stream length. As the climate gets drier, the average fraction of the flowing network decreases while its relative variability increases. Our study provides a novel conceptual basis for characterizing temporary streams and quantifying their ecological and biogeochemical impacts.


2021 ◽  
Vol 2021 (10) ◽  
pp. 4-12
Author(s):  
Damir Safarov ◽  
Aleksey Kondrashov ◽  
Ayrat Fashudtinov

The paper considers a technique that allows to increase the efficiency of solving various types of production tasks based on simulation modeling. The technique considers the process of engineering modeling of technological system components in accordance with conceptual hierarchical levels, which with the deeper level provide an approximation of the simulated object from the initial correspondence in the form of equipment contours to the maximum in the form of a 3D component model based on 3D scanning. This technique allows to choose the most adequate option of modeling the technological system components, corresponding to the complexity of the production task solved by simulation modeling. The application of the technique in the design and engineering services of a machine-building enterprise allows to arrange the modeling process, select all its stages, assign performers, check the execution of the modeling process, ensure that the models correspond to the production task being solved. The technique effectiveness is confirmed by the given examples of solving production tasks of diverse complexity – simulation modeling of gear milling of helical bevel gears and circular tooth pulling. The purpose of the paper is to reduce the complexity of building 3D models of technological systems by engineering services of machine-building enterprises for solving production problems of diverse complexity thanks to the hierarchical structuring of input design information for building 3D models of a technological system and solved production tasks. Research methods: functional differentiation of processes. Research results and novelty: reducing the duration of solving production tasks of diverse complexity by decreasing the time of 3D modeling of technological systems. Conclusions: rational arrangement of engineering modeling based on the hierarchical structuring of input design information for building 3D models of a technological system and solved production tasks allows to reduce the duration of engineering modeling up to two times.


2021 ◽  
Vol 5 (S2) ◽  
pp. 137-151
Author(s):  
Alla V. Sokolova

The article discusses the ways of interaction of the French court ballet, the Italian carnival, Italian dance and the English court Masque. The features of royal entertainment in France, known since the reign of Henry II, are revealed. The origin of the French court ballet was determined, its socio-political functions aimed at the hierarchical structuring of the royal court, strengthening the authority of the monarch, the unification of the aristocratic nobility and the removal of hotbeds of tension in society were revealed, which were characteristic features for the functional features of the English court Masque. The stages of the origin, formation, heyday, and decline of the French court ballet are described. A parallel is drawn between the burlesque roles of the king in the court ballet and the birth of an antimasque, the founder of which was was B. Johnson, a poet and playwright. It was established that the Italian style coexisted in England with other European styles during the period of the Stuart reign, and Italian dances, costumes, librettos and stage designs were used in the performances of English Masques.


2021 ◽  
Vol 11 (10) ◽  
pp. 4668
Author(s):  
Zheng He ◽  
Huihua Chen

Construction activities taken place in ecologically fragile regions (EFRs) of China are facing a series of environmental obstacles. Studying critical success factors (CSFs) to arrive at the sustainable objectives for construction project in EFRs is needed. Understanding the interrelationships of these CSFs is one of the vital ways to achieve this. This paper identifies and analyzes 18 CSFs for construction projects in EFRs through a literature review from a multi-perspective and a case study of Korla City in China. The causal relationship between each CSF is obtained by pairwise comparisons and thereafter, an ISM (Interpretative Structural Modeling) method is employed to study the hierarchical structuring of the CSFs. As a result, we established a five-level ISM. Subsequently, an MICMAC (cross-impact matrix multiplication applied to classification) approach is implemented to partition and classify each CSF into four quadrants (independent, linkage, autonomous, and dependent) according to their driver and dependence powers. Through the implementation of an MICMAC approach, the degrees of relationship between each CSF is gained. The findings reveal that the studied 18 CSFs have a strong hierarchy and interrelationship. The project manager’s leadership style and economic viability are the root source of project success and has the highest influence, which is supported by the result of MICMAC analysis. CSF planning and implementation of sustainable strategies are more dependent and are influenced by others. The CSFs on the top level of ISM: conflict resolution, planning and implementation of sustainable strategies and resources of water play a significant role in arriving at the project success, and has a great potential for future study. The approaches implemented in this paper can be helpful for decision-makers and managers of construction projects in comprehending the interrelationships and the degrees of CSFs for construction projects in EFRs and for efficiently achieving the project success.


Author(s):  
O. V. Borodenko

The present article is concerned with the problem of the local in the history of philosophy and in contemporary philosophy of culture. It emphasizes the relevance and interdisciplinary essence of this problem. The evolution of the concepts “local” and “locality” in classical and contemporary philosophy (by the example of the concepts of individual thinkers) is traced, and the meaning of these concepts for understanding the contemporary cultural context is determined. So, in particular, the development of ideas about the localization of an object in space in ancient philosophy (in Plato) is traced. The problem of the local in non-classical and post-non-classical philosophy is considered in connection with the problem of the crisis of cultural values. An attempt is made to define the concept of “locality” as a cultural phenomenon based on the analysis of the works of P. Sloterdijk, I. Hassan, J. Baudrillard and others, as well as the latest scientific publications. Emphasis is placed on analyzing the problem of the local as a philosophical concept, and at the same time, the phenomenon of culture, in the framework of postmodern ideas, the theory of cultural globalization, in the microspherology of P. Sloterdijk. The principle of “indetermanence” by I. Hassan, which most fully reveals the postmodern rejection of hierarchical structuring of culture and the process of transition from centering to scattering, to peripheral dislocation of cultural objects and phenomena, is considered as a kind of “methodological basis” of the analysis of locality as a cultural phenomenon. Locality is defined by the author of the article as “a certain holistic microworld (microsphere) formed by a person or a group of people as part of his (their) lifeworld and accumulating key values, ideas, symbols, etc., that are particularly significant for these people”. The main features of locality as a cultural phenomenon are considered: a) attachment to a particular place (locus); b) locality is at the same time a fragment of the world, the cosmos and a holistic microworld that lives by its own laws; c) spatiality and temporality, chronotopicity; d) dynamic and historic; e) anthropological, centered around a person or a group of people; f) symbolism.


Science ◽  
2021 ◽  
Vol 371 (6533) ◽  
pp. 1026-1033
Author(s):  
Shan Shi ◽  
Yong Li ◽  
Bao-Nam Ngo-Dinh ◽  
Jürgen Markmann ◽  
Jörg Weissmüller

Structural hierarchy can enhance the mechanical behavior of materials and systems. This is exemplified by the fracture toughness of nacre or enamel in nature and by human-made architected microscale network structures. Nanoscale structuring promises further strengthening, yet macroscopic bodies built this way contain an immense number of struts, calling for scalable preparation schemes. In this work, we demonstrated macroscopic hierarchical network nanomaterials made by the self-organization processes of dealloying. Their hierarchical architecture affords enhanced strength and stiffness at a given solid fraction, and it enables reduced solid fractions by dealloying. Scaling laws for the mechanics and atomistic simulation support the observations. Because they expose the systematic benefits of hierarchical structuring in nanoscale network structures, our materials may serve as prototypes for future lightweight structural materials.


2021 ◽  
Vol 5 (2) ◽  
pp. 101-123
Author(s):  
Juliana Novo Gomes ◽  
Aniela Importa França ◽  
Marcus Maia ◽  
Albert Rilliard

Hierarchical or indirect recursion can be found in different domains of human language and thus, it has been claimed to be the only part of language that is specific to humans (Hauser, Chomsky, and Fitch 2002). However, in the past decade, both the claims that, recursion is the central component of the “narrow faculty of language” and that, it should be present in all languages have been the object of intense debate (cf. Pinker & Jackendoff, 2005; Everett, 2005). This debate triggered the exploration of new frontiers in the examination of embedded structures, which have been examined in acquisition and in processing and have been shown to be implemented through a wide array of linguistic resources in different languages. This paper presents an acoustic description and a neuro-psycholinguistic analysis (ERP/EEG) of an uncommon cognitive device to embed relative clauses. It is implemented in Karajá, a Macro-Je language spoken in Central Brazil, which uses pitch accent to signal relativization: (i) [tori do‟rode] „the white man arrived‟ versus (ii) [tori doro‟de] „the white man who arrived‟, first described in Ribeiro as stress shift (2006). The major interest in studying this phenomenon is because in Karajá, more than structuring envelopes for acts of speech, prosody codes directly onto the central syntactic algorithm of recursion. We found evidence in favor of a stronger facilitation to process a coordinated structure than a recursive structure. We found smaller RTs and amplitudes in the EEG related to the coordinated conditions versus the embedding conditions. Also, it seems that even though embedding is harder to launch, hierarchical structuring makes it easier to process in the third embedding, when comprehenders learn they are in an embedding mode. Coordination, on the other hand, being a default, is easier to launch, but it seems to become progressively harder as it does not benefit from hierarchical structuring.


2021 ◽  
Vol 263 ◽  
pp. 04063
Author(s):  
Nadezhda Sevryugina ◽  
Pavel Kapyrin

The concept of a multidisciplinary approach to assessing the resource of individual components of the machine by combining database information based on simulation techniques and functional tensomethration is proposed. Simulations determine the reperative points of the tendometric sensors. The creation of a diagnostic model using basic concepts of information theory has allowed the development of a synergistic model for the recognition of the area of displacement of areas of uncertainty, which will ensure the identification of the defect (risk-denial). The formation of an electronic database of parametric data on the nature of loads as a diagnostic indicator of the change in the accuracy of pairing in machine systems is justified. Experimental studies were conducted on the model of the quick-capler. Hierarchical structuring of the machine to the level of mating parts with digital control of the criticality of the magnitude of external and internal loads ensures reliability control throughout the entire service life of the machine. When disposing of machines, this data allows you to obtain information about the residual resources of the elements for their reuse or the feasibility of restoration. This, in turn, will ensure the environmental friendliness and economy of the process.


Author(s):  
S.V. Avilkina ◽  

The relevance of studying the issues of infrastructure classification is due to the problems of regional asymmetry of Russian regions and the need to assess their infrastructural potential, identify infrastructural facilities that meet the needs of organizations of both the region and territorial entities of different levels. In connection with the processes of changing technological structures, the intellectualization of the economy, the formation of approaches to assessing the educational and scientific and educational infrastructure of the region becomes relevant. The purpose of the article is to describe the regional approach to the classification of infrastructure, as well as to substantiate the influence of educational infrastructure on the development of the economy. The analysis of existing approaches to the definition of the concept of «infrastructure» and its classification is applied. The proposed classification is based on the idea of structuring the infrastructure in accordance with the requests of researchers of the regional economy and the needs arising at different levels of state and corporate governance. As a result of the study, a regional approach to the classification of infrastructure objects was proposed. The advantages of this approach are described. A hierarchical structuring of infrastructural potential based on the identification of different regional levels is proposed. Based on the application of the stakeholder approach with identifying the list of users of the infrastructure object, the following types of regions were identified: «regions — infrastructure donors» and «regions — infrastructure recipients». The argumentation of the thesis «educational infrastructure is an industrial infrastructure» is given, which is based on the analysis of indicators included in the methods of assessing the innovative development of the economy; analysis of the parameters used by the Ministry of Economic Development of Russia for forecasting the rate of economic growth; analysis of the potential of higher education as an important element in the development of the knowledge economy. The approaches of researchers to the concept of «scientific and educational infrastructure» are analyzed and the author’s approach to the analysis of the regional potential of scientific and educational infrastructure as an element of the industrial infrastructure of a constituent entity of the Russian Federation is proposed. The materials of the article can be used by researchers of regional development problems, heads of organizations and government bodies for structuring infrastructure facilities in the region, identifying the infrastructural potential of individual facilities, highlighting objects of scientific and educational infrastructure. Key words: regional economy, classification of infrastructure, higher education, infrastructure potential of the territory, scientific and educational infrastructure.


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