scholarly journals Automatic control of the distribution of tasks under conditions of uncertainty with the use of adaptive approach

2021 ◽  
Vol 2094 (3) ◽  
pp. 032023
Author(s):  
E Zhigalov ◽  
M I Ozerova
Keyword(s):  
Automatic Control ◽  
Adaptive Algorithm ◽  
Maximum Load ◽  
Current Load ◽  
Adaptive Approach ◽  
Task Distribution ◽  
Alternative Approach ◽  
Solution Methods ◽  
The Subject ◽  
Multi Level

Abstract The subject of this article is the development of an adaptive approach for the optimal distribution of problems among solvers in conditions of uncertainty. Despite the large amount of research related to the construction of solutions for automatic control of task distribution, this issue remains relevant. As an alternative approach, a multi-level adaptive algorithm is proposed, which at each level filters incoming tasks according to solution methods, thereby significantly reducing the computational load. A distinctive feature of this algorithm is taking into account the time of task preprocessing, in particular, related to the current load of solvers and the distribution of tasks by solvers, in accordance with the maximum load.

PRINCIPLES OF FORMING OBJECTS OF ETHNOGRAPHIC TOURISM WITH REGIONAL FEATURES ON THE EXAMPLE OF THE BELGOROD REGION

2020 ◽  
Vol 1 (3) ◽  
pp. 37-44
Author(s):  
Elena Ladik ◽  
A. Makridina
Keyword(s):  
Cultural Landscape ◽  
Cultural Landscapes ◽  
Cultural Analysis ◽  
Anthropogenic Pressures ◽  
Regional Features ◽  
The Subject ◽  
The Russian Federation ◽  
Multi Level ◽  
Stylistic Unity ◽  
National Experience

The problems of planning the organization of territories and objects of ethnographic tourism, taking into account the landscape features of the regions of the Russian Federation, in particular the Belgorod region, are relevant. The study developed regional principles for planning ethno-tourist spaces on the example of the Belgorod region. The object of research is the territories favorable for the development of ethnographic tourism objects within the Belgorod region, the subject of research is the influence of regional historical and cultural features on the formation of ethnographic tourism territories. As a result of the study, based on the analysis of world and national experience in the design of ethnographic tourism objects, their typological and historical-cultural analysis, the principles of organizing ethnographic tourism objects were developed. These principles take into account such regional features of the cultural landscapes of the Belgorod region, as the principle of preservation of the cultural landscape, the principle of authenticity of the recreated environment, the principle of symbolic exposure, the principle of stylistic unity and the multi-level principle. The use of the developed principles will allow us to preserve the identity and originality of the environment, reduce anthropogenic pressures on valuable landscape areas, increase information content and determine the gradual immersion in the concept of a tourist site.

scholarly journals AN ALTERNATIVE APPROACH TO IDENTIFY KEY INDUSTRIES: ISSUES TO SELECTION CRITERIA

2014 ◽  
Vol 15 (3) ◽  
pp. 577-598
Author(s):  
Abul Quasem Al-Amin ◽  
Abdul Hamid Jaafar
Keyword(s):  
Selection Criteria ◽  
Public Investment ◽  
Correct Identification ◽  
The Public ◽  
Study Approach ◽  
Sectoral Planning ◽  
Alternative Approach ◽  
The Subject ◽  
Key Industries ◽  
High Degree

Within a process of modeling exercise, this study aimed to understand appropriate selection criteria to identify key industries. There are many key sector identification linkage measures in the subject matter and sensitivity issue among them can be tricky because many of these measures differ only slightly but can result in outcomes that are quite dissimilar. With this background, we proposed an alternate approach that helps to resolve this issue. The proposed approach utilizes in this study by five sub-methods and high degree of the frequency of their occurrences in sub-methods to determine the key sectors. The study approach is applied to Malaysia as the public sector investment remains a large share in the national economy, like other developing countries, and the correct identification is still a challenge for sectoral planning. The experiences from this study can be used to guide appropriate public investment in Malaysia and elsewhere with similar economic forms.

scholarly journals On the Determination of Meshed Distribution Networks Operational Points after Reinforcement

2019 ◽  
Vol 9 (17) ◽  
pp. 3501 ◽  
Author(s):  
Vasiliki Vita ◽  
Stavros Lazarou ◽  
Christos A. Christodoulou ◽  
George Seritan
Keyword(s):  
Monte Carlo Simulation ◽  
Distributed Generation ◽  
Electric Vehicles ◽  
Maximum Load ◽  
Distribution Networks ◽  
Network Robustness ◽  
Current Load ◽  
Objective Functions ◽  
Calculation Algorithm

This paper proposes a calculation algorithm that creates operational points and evaluates the performance of distribution lines after reinforcement. The operational points of the line are probabilistically determined using Monte Carlo simulation for several objective functions for a given line. It is assumed that minimum voltage at all nodes has to be balanced to the maximum load served under variable distributed generation production, and to the energy produced from the intermittent renewables. The calculated maximum load, which is higher than the current load, is expected to cover the expected needs for electric vehicles charging. Following the proposed operational patterns, it is possible to have always maximum line capacity. This method is able to offer several benefits. It facilitates of network planning and the estimation of network robustness. It can be used as a tool for network planners, operators and large users. It applies to any type of network including radial and meshed.

Trade-Off Analysis of System Architecture Modularity Using Design Structure Matrix

2015 ◽  
Author(s):  
Roozbeh Sanaei ◽  
Kevin Otto ◽  
Katja Hölttä-Otto ◽  
Jianxi Luo
Keyword(s):  
Hierarchical Clustering ◽  
Clustering Algorithms ◽  
Trade Off ◽  
Considerable Research ◽  
Design Structure ◽  
Alternative Approach ◽  
Product Modularity ◽  
Modular Architectures ◽  
The Subject ◽  
Definition Of

Product modularity has been the subject of considerable research and debate in last decade. Various metrics have been proposed in design community to measure the level of modularity and various procedures have been developed to search for ideal modular architectures. These procedures are based on either manual heuristics or computer clustering algorithms. Both approaches are aimed at finding more ideal architectures by optimizing a definition of modularity. However, different desirable criteria are often in conflict with each other and improving one criteria is not feasible without a compromising effect on another. Here, we propose a procedure to find non-dominated optimal architectures where our criteria of interest are intra-cluster and extra-cluster costs. We demonstrate an approach where a designer can consider the architecture that minimizes total cost of interactions, but also allows visualization of the trade-off in increased and decreased costs when considering nearby architectures with more or less modules. An alternative approach has been to consider granularity and hierarchical clustering schemes. We also show through an example that cost optimal architectures for any choice of number of modules are not necessarily obtainable via dividing or aggregating modules, and restricting to hierarchical clustering algorithms produces non-optimal solutions at different numbers of modules.

scholarly journals Measuring Differential Volume Using the Subtraction Tool for Three-Dimensional Breast Volumetry: A Proof of Concept Study

2020 ◽  
pp. 155335062094556
Author(s):  
Faith Hyun Kyung Jeon ◽  
Michelle Griffin ◽  
Aurora Almadori ◽  
Jajini Varghese ◽  
Stephanie Bogan ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Computer Software ◽  
Patient Positioning ◽  
Volumetric Analysis ◽  
Volumetric Assessment ◽  
Alternative Approach ◽  
Significant Difference ◽  
Actual Volume ◽  
Novel Method ◽  
The Subject

Background. Three-dimensional (3D) photography provides a promising means of breast volumetry. Sources of error using a single-captured surface to calculate breast volume include inaccurate designation of breast boundaries and prediction of the invisible chest wall generated by computer software. An alternative approach is to measure differential volume using subtraction of 2 captured surfaces. Objectives. To explore 3D breast volumetry using the subtraction of superimposed images to calculate differential volume. To assess optimal patient positioning for accurate volumetric assessment. Methods. Known volumes of breast enhancers simulated volumetric changes to the breast (n = 12). 3D photographs were taken (3dMDtorso) with the subject positioned upright at 90° and posteriorly inclined at 30°. Patient position, breathing, distance and camera calibration were standardised. Volumetric analysis was performed using 3dMDvultus software. Results. A statistically significant difference was found between actual volume and measured volumes with subjects positioned at 90° ( P < .05). No statistical difference was found at 30° ( P = .078), but subsequent Bland–Altman analysis showed evidence of proportional bias ( P < .05). There was good correlation between measured and actual volumes in both positions (r = .77 and r = .85, respectively). Univariate analyses showed breast enhancer volumes of 195 mL and 295 mL to incur bias. The coefficient of variation was 5.76% for single observer analysis. Conclusion. Positioning the subject at a 30° posterior incline provides more accurate results from better exposure of the inferior breast. The subtraction tool is a novel method of measuring differential volume. Future studies should explore methodology for application into the clinical setting.

scholarly journals Architectural Expression of Seismic Strengthening

2001 ◽  
Vol 17 (3) ◽  
pp. 417-426 ◽  
Author(s):  
Andrew Charleson ◽  
Julieanna Preston ◽  
Mark Taylor
Keyword(s):  
Structural Engineering ◽  
Seismic Retrofitting ◽  
Office Building ◽  
Masonry Building ◽  
Historic Buildings ◽  
Seismic Strengthening ◽  
Aesthetic Sense ◽  
Alternative Approach ◽  
The Subject ◽  
Unreinforced Masonry Building

Current seismic strengthening approaches to historic buildings place emphasis upon concealing engineering technologies. This study investigates, through a process of architectural and structural engineering design, the architectural possibilities inherent in a completely different approach. Recognizing both conservation concerns and the architectural qualities of two existing earthquake-prone buildings, the study explores seismic strengthening strategies that are exposed to view in order to contribute, in both a physical and aesthetic sense, a layer of architectural richness. A 1960s eight-story reinforced-concrete office building and a three-story unreinforced masonry building are the subject of theoretical seismic strengthening schemes. The paper describes the buildings, the strengthening approaches from both architectural and structural engineering perspectives, and comments on the outcome with respect to conservation guidelines. Although the proposed schemes challenge some sections of the guidelines, the authors believe the exposed structure enhances the existing architecture, and in so doing suggests an alternative approach for seismic retrofitting.

scholarly journals (Re-)imagining the ‘Self’ of Ontological Security: The Case of Brazil’s Ambivalent Postcolonial Subjectivity

2017 ◽  
Vol 46 (2) ◽  
pp. 142-164 ◽  
Author(s):  
Marco A. Vieira
Keyword(s):  
Foreign Policy ◽  
Mirror Image ◽  
The Self ◽  
Ontological Security ◽  
Self Identity ◽  
Self In Relation ◽  
Postcolonial State ◽  
Alternative Approach ◽  
The Subject ◽  
Postcolonial States

In this article, I critically engage with and develop an alternative approach to ontological security informed by Jacques Lacan’s theory of the subject. I argue that ontological security relates to a lack; that is, the always frustrated desire to provide meaningful discursive interpretations to one’s self. This lack is generative of anxiety which functions as the subject’s affective and necessary drive to a continuous, albeit elusive, pursuit of self-coherence. I theorise subjectivity in Lacanian terms as fantasised discursive articulations of the Self in relation to an idealised mirror-image other. The focus on postcolonial states’ subjectivity allows for the examination of the anxiety-driven lack generated by the ever-present desire to emulate but also resist the Western other. I propose, therefore, to explore the theoretical assertion that postcolonial ontological security refers to the institutionalisation and discursive articulation of enduring and anxiety-driven affective traces related to these states’ colonial pasts that are still active and influence current foreign policy practices. I illustrate the force of this interpretation of ontological security by focusing on Brazil as an example of a postcolonial state coping with the lack caused by its ambivalent/hybrid self-identity.

Multi-Level Blended Learning Exploration and Practice on Experimental Teaching System

2012 ◽  
Vol 468-471 ◽  
pp. 2115-2118 ◽  
Author(s):  
Heng Fen Yang ◽  
Ga Zhao ◽  
Xiao Jun Wang ◽  
Ping Ping Shu ◽  
Jun Yang
Keyword(s):  
Blended Learning ◽  
Independent Study ◽  
Traditional Teaching ◽  
Teaching Reform ◽  
Leading Role ◽  
Experimental Teaching ◽  
Innovation Ability ◽  
The Subject ◽  
Multi Level ◽  
Teaching Pattern

Student is the subject of the experimental teaching activities, cultivating the ability of independent study and technological innovation is the main aspect in experimental teaching reform. This paper analyzed the problems of traditional teaching model, explored and practiced the multilevel experimental teaching pattern which is based on the blended learning, it made the teachers fully play the leading role, and it fully reflected the subject status of students, it also roused the enthusiasm of students by the use of multi-platforms, media and environments. The multilevel experimental teaching pattern which is based on the blended learning can effectively cultivate the innovation ability of students, and it has achieved good results in practice.

Post-Buckling Behavior of Z-Shaped Columns under Variables of Lengths and Initial Imperfections

2013 ◽  
Vol 437 ◽  
pp. 62-65
Author(s):  
Ji Nao Zhang
Keyword(s):  
Failure Modes ◽  
Control Method ◽  
Three Dimensional ◽  
Initial Imperfection ◽  
Maximum Load ◽  
Element Analysis ◽  
Initial Imperfections ◽  
Solution Methods ◽  
Post Buckling ◽  
Displacement Control Method

This paper conducts three-dimensional, nonlinear finite element analysis to investigate the results of using different solution methods and the influence of initial imperfections and material plasticity on failure modes and maximum load of various Z-shaped column lengths; it also compares the column buckling responses between various lengths, each with different initial imperfections. Further analyses include investigating the element suitability and computational costs. Results showed that both displacement control method and Riks method are fully capable of receiving promising results from this analysis. In terms of the effects of initial imperfection and material plasticity on the maximum load that column could carry, the imperfection is the major contributing factor when the column is long whereas the plasticity is the major contributing factor when the column is short.

scholarly journals Geneza i pojęcie żywności lokalnej w powiązaniu z ideą zrównoważonejkonsumpcji

2019 ◽  
pp. 23-35 ◽  
Author(s):  
Elżbieta Goryńska-Goldmann
Keyword(s):  
Rural Areas ◽  
Local Food ◽  
Sustainable Consumption ◽  
Public Institutions ◽  
The European Union ◽  
Alternative Approach ◽  
Union Local ◽  
The Subject ◽  
Definition Of ◽  
Further Development

This paper reviews the conceptual apparatus and the genesis of local food, on the basis of definitions and with respect to legal conditions, as well as the popular ways of interpretation of local food and scientific research performed by different centers and institutions – both domestic and foreign. On the basis of that, the paper presents the author’s own proposition concerning the abovementioned issue. The aim of the paper is to present the genesis and the definition of local food in the perspective of sustainable consumption. While conducting the research, the scientific literature concerning the subject was reviewed, and the findings were documented with available statistical and market information. The research showed that public institutions see the potential of local food and hope that it can drive the development of rural areas in the European Union. Local food is an alternative approach to the way in which food consumption can be turned into a sustainable one. Informed and responsible consumers, who are aware of their own limitations and value tradition, provide some new quality to the society (as they constitute a specific form of social capital), what translates into bigger local food production possibilities and is the basis for the further development of sustainable consumption.

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