cluster technology
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2022 ◽  
pp. 1845-1858
Author(s):  
Viviana Perilli ◽  
Fabrizio Stasolla ◽  
Adele Boccasini

This article provides the reader with a literature overview of the newest empirical evidences available on the use of assistive technology-based programs for teaching and improving adaptive responding of children with severe to profound developmental disabilities. Four main categories of studies were selected, regarding (a) the technology for promoting independent access to positive stimulation, (b) the combination between microswitch and VOCA aimed at asking for social contact with a caregiver, (c) the cluster technology for increasing an adaptive response, and simultaneously reducing a challenging behavior, (d) the technology for requesting and choosing desired item or the access to the literacy. Overall, 26 studies were reviewed, and 75 participants were involved. The outcomes were largely positive, although few failures occurred. Psychological and Rehabilitative implications of the findings for both research and clinical practices were critically discussed


Author(s):  
D. S. Filippova ◽  
◽  
V. E. Stolyarov ◽  
E. A. Safarova ◽  
◽  
...  

The storage of methane-hydrogen mixtures (MHM) in existing underground gas storage facilities (UGS) is a prerequisite for the development of a "carbonneutral" strategy of the Russian Federation. The use of technologies for storage and delivery of MHM in industrial volumes should be ensured by experimental research, the creation of a regulatory framework and the introduction of modern methods for maintaining the operational reliability of the existing Unified Gas Transportation System (UGSS). The need for scientific and project work is determined by the peculiarities of the storage of MHM and the assessment of the likelihood of negative technogenic and mechanical consequences during the operation of the equipment. The materials provide the main risk models of the processes that arise in the case of hybrid storage of MHM. The use of cluster technology for storage and transportation of MHM is proposed, and the need to ensure constant monitoring of the component composition of gas as part of the implementation of an integrated automated flow technology is shown. Keywords: methane-hydrogen mixtures; hydrogen energy; underground gas storage; hardware control; risks.


2021 ◽  
Vol 13 (24) ◽  
pp. 14024
Author(s):  
Tsvetana Stoyanova ◽  
Philip Stoyanov ◽  
Anzhelika Remnova ◽  
Svitlana Kushniruk ◽  
Lyudmyla Rakityanska ◽  
...  

The paper defines the scientific provisions on the feasibility and effectiveness of using e-learning under conditions of quarantine restrictions related to the COVID-19 pandemic. It was proved that within the use of e-learning there has been a convergence between the scientific and methodological bases and the learning process itself, and new approaches to the general didactic and information content of e-learning courses within the education process have been formed. Modern platforms of e-learning are examined and a scheme involving the synchronous technology of e-learning was formed. Within the framework of the suggested learning platform, effective learning tools under conditions of quarantine restrictions were identified, the use of which allows the most successful solution of didactic tasks facing e-learning to be ensured on the basis of the everyday use of digital media and electronic devices for learning purposes. The fractal-cluster technology of an e-learning organization was suggested for an introduction. The functional dependencies on the forms and technologies of the educational process for the efficiency of higher education were obtained. The expediency of introducing fractal-cluster structures into the organizational component of the educational process was determined. Based on the tools of the fractal-cluster approach, a model of organization of the educational process in the information-entropy format was formulated.


2021 ◽  
Author(s):  
B. Darmawan

Pertamina EP plays an important role in maintaining the oil production supply for national energy stability. Thus, they bear a great responsibility to accelerate all the development plans and execute them in timely manner. However, there is big challenge in the realization of those plans since they are not fully equipped with the advance computing technology to boost the reservoir modeling and simulation phase. Therefore, the effort on finalizing and executing of 33 Plan of development (POD) projects within 5 years was looked like a never-ending project. To face the challenge, Pertamina EP evaluated the possibility to create a cluster technology that can accommodate high intensity of simulation numbers and high load of simulation process. The evaluation process covers: compiling, sorting and selecting the analog reservoir model (highest grid number and longest simulation time), benchmarking and performance test to get the most optimum cluster configuration. Supercomputer was then procured and set based on the optimized model, then completed by implementing the test on three most extreme POD models. This paper described the success story and innovation of a complex simulation and finer scale reservoir model using the hybrid parallel-computing technology with a set of 8 nodes high performing computer. Three models were tested with satisfying results. This paper discusses the parallel scalability of complex computing systems of multi-CPU clusters. Multi-CPU distributed memory computing system is proven to be able to improve and accelerate the reservoir modeling and simulation time, when it is used in combination with a new so called “hybrid” approach. In this approach, the common Message Passing Interface (MPI) synchronization between the cluster nodes is being interleaved with a shared memory system thread-based synchronization at the node level. The model with the longest simulation time has been accelerated by magnitude of 60%. The most exhausted model with highest number of simulation steps has been accelerated by magnitude of 80%. The model with the greatest number of grid (21.7 million active grids) has finally finished its simulation just in 27 minutes where previously was impossible to have it open and run. The successful study case is then followed by the implementation of the cluster computing technology for two pilot POD projects which led to the very good result. With this improvement, Pertamina EP can finally perform the probabilistic simulation as recommended by SKKMIGAS in PTK Rev-2/2018. It is now possible to run all 33 structures of multiple reservoir realizations for each POD.


2021 ◽  
Vol 3 (3) ◽  
pp. 368-375
Author(s):  
Aep Setiawan ◽  
Rifa Ade Rahmah

College of Vocational IPB University (SV-IPB) uses a client-server system as an information technology architecture. The server provides several services that are used to assist the teaching and learning process at the IPB Vocational School. The application used to provide services is the Modular Object-Oriented Dynamic Learning Environment (MOODLE) which is used for e-learning. SV-IPB provides two Virtual Machines which are used as a web server and a database server. The use of a single web server to replace the request is certainly less stable because there is no web server to back it up so that the service will stop. This situation states that the use of a single web server does not have high information (high available). To overcome this problem, the cluster technology can be used to group several web servers in SV-IPB. The web server clustering technology used is the Gluster File System (GlusterFS) with the volume type used, namely Distributed-replicated volume. Based on the tests that have been carried out, this project can solve the problem that has been described earlier that "one web server is down, there is still another web server that can so that the client request process does not stop. In addition, the clustering technology used is required for the use of load balancing web servers so that it can reduce the load on each server because the request process will be sent alternately between web servers.


2021 ◽  
Vol 94 ◽  
pp. 02005
Author(s):  
Nataliya Malshina ◽  
Alexander Demchenko ◽  
Anastasia Filonenko

The use of natural science research methods in the form of cluster analysis in the field of humanities on the example of the education system of culture and art gives an innovative direction to the development of the entire field of culture. The main significance of this development has an applied character, what contributes to the forming of the innovative potential of the territory and the attractiveness of the region. As a result of the proposed research, a method of cluster analysis of the education system of culture and art is developed, an algorithm for implementing the cognitive-hermeneutical methodology of teaching and approving the principles of self-development of students, as well as the realization of the role of globalization processes are proposed. The method of factor analysis in the application for the cultural sphere was tested. Recommendations, key indicators and author’s methods of development of the higher education system of culture and art are formed, taking into account the specifics of music education.


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