scholarly journals Simulation model of the communication repair process in the mechanized brigade repair unit

2020 ◽  
Vol 10 (1) ◽  
pp. 56-66
Author(s):  
Alexander Ishchenko

The article analyzes the current state of information exchange in the control system of a mechanized brigade during its combat operations in the anti-terrorist operation, the operation of the combined forces of the Armed Forces of Ukraine in the east of the country. It is determined that the mechanized crew communication system has a low level of survivability. The cause is a large amount of communication damage due to enemy fire damage and limited technical reliability. Maintaining a given level of survivability of the communication system is possible primarily through the timely restoration of damaged communications.Existing models that can be used to determine the estimated number of recovered communications tools are analyzed. Strengths and weaknesses are identified and directions of improvement are formulated.A simulation model developed on a personal computer in the AnyLogic 7.0.2 Professional software environment, the process of repairing communications in the repair unit of a mechanized team, which, unlike existing ones, takes into account the intensity of communication failure due to enemy fire damage combat periods, as well as communication tools that fail due to limited technical reliability.The type of queuing system used to describe the recovery process of communications in the mechanized repair unit is justified. The algorithm of work of simulation model of process of communication means restoration in repair unit of mechanized crew is given.Let's calculate the number of recovered communications using a simulation model of the communication recovery process in a mechanized brigade repair unit using a hypothetical example. The dependence of the likelihood of communication services on the number of communication repair masters has been determined. 

2017 ◽  
Vol 4 (1) ◽  
pp. 15-22
Author(s):  
Arinta Fadlil Fajar Wicaksono

Building VoIP technology requires a server called Elastix. Singleboard circuit device can be an alternative to cover the shortcomings of a PC as a VoIP server, to support practicum activities. The specifications for the quad-core processor and 1GB LPDDR2 memory are expected to be able to provide access to the latest version of the operating system to be able to produce better communication quality as I PPBX. This study designed a VoIP IP PBX server communication system at the Polinema Telecommunication Laboratory using the Elastix Linux operating system, to determine the quality of VoIP communication services and the performance of a single board circuit as an IPPBX server. The results of the research are 64 kbps bandwidth capacity capable of serving a customer capacity of 181 subscribers through 8 number of channels. QoS measurement obtained a delay value of 4.87091 ms; jitter of 18,265ms; packet loss of 0.71%; throughput of 0.2747 Mbit / sec. The singleboard circuit server is capable of serving VoIP communications for as many as 20 users and 10 calls simultaneously on the same server with a cpu usage percentage of 17.7% and 17.2% cpu usage, when communicating with other servers.


2021 ◽  
Author(s):  
Lesya Kononenko ◽  
◽  
Nataliia Sysolina ◽  
Oksana Yurchenko ◽  
◽  
...  

The article examines the current state of receivables management, identifies the main problems and suggests ways to overcome them, including accounting. The research methodology is based on general scientific methods of cognition: historical, logical, systemic, induction, deduction, analysis, synthesis; methods of statistical data processing, classification, grouping. Emphasis is placed on the growth of receivables and its consistently high share in the current assets of domestic enterprises over the past three years, which necessitates the development of measures to optimize its management. Modern software, including the subsystem "Accounting" "1C: Enterprise 8" does not contain a separate complex for accounting for receivables and the provision for doubtful debts. This determines the expediency of accrual of the provision for doubtful debts in the subsystem "Accounting" in the document "Debt Adjustment", which is designed to adjust the debt of mutual settlements with counterparties and is responsible for the function of debt write-off. It is proved that the process of receivables management in the conditions of digitalization can be optimized by integrating communication and network technologies. Integration processes provide the formation of a common information environment at the micro and macro levels with access to internal and external users of accounting information. It is advisable to integrate the function of information exchange with a single database of counterparties in modern software products for accounting automation. This will allow you to obtain information about counterparties, the existence of contractual relations, the state of receivables and the procedure for its repayment. The single database will provide an opportunity for information exchange between suppliers, customers, banking institutions, legal and factoring organizations, government agencies of the fiscal service and statistics. All these measures will optimize the process of managing receivables in terms of the use of information technology. The prospect of further research is to study the information support of receivables management in the application of blockchain technology.


Author(s):  
R. Sossa

The basic principles and current state of topographic mapping of the territory of Ukraine are considered. Prior to the proclamation of Ukraine's independence, its territory was covered by topographic maps in the scale of 1:10 000 to 1: 1 000 000, created by the Main Department of Geodesy and Cartography under the USSR Council of Ministers and the Military Topographic Service of the USSR Armed Forces. The interaction of these departments in topographic mapping is highlighted. The topographic study of Ukrainian territory as of 1991 is analyzed in detail. Today the content of most topographic maps of scales from 1:10 000 to 1: 200 000 is characterized by "aging" of information and does not correspond to the current state of the area. The unsatisfactory state of topographic study of the territory led to the unclaimed topographic maps with much outdated information for consumers, and for the military it very difficult to perform combat tasks. The needs of current topographic information users require a significant improvement in topographic maps content. Since the mid-1990s, the creation of national geospatial data infrastructures has become crucial for providing spatial information to the state and society. The basic principles and general requirements for the creation and updating of state topographic maps are now defined by the "Procedure for national topographic and thematic mapping" (2013). The adoption of the Law of Ukraine "On the National Infrastructure of Geospatial Data", giving a powerful impetus to topographic mapping, poses a responsible task of organizational and regulatory and technical support of this process. The issue of obtaining topographic maps from the topographic database requires scientific and technical elaboration, development of appropriate normative and technical documents (guides, principles, instructions, symbols, etc.).


Author(s):  
Kerstin Denecke

This chapter presents the current state and outlines future directions in the possibilities of applying and exploiting social media in supporting healthcare processes. Starting from the abstracts of the Medicine 2.0 conference in 2012, the authors identify categories of application purposes for social media-based healthcare applications. The applications of social media tools and data are categorized into five groups: 1) supporting the treatment process, 2) for information gathering and prevention, 3) for networking and information exchange, 4) for knowledge management, and 5) for research and monitoring. Use of social media for information gathering and disease prevention is most prevalent. Existing applications mainly concentrate on supporting treatment of chronic and mental diseases. Technology is ready for supporting such applications. To go further in that direction, organizational and legal issues need to be addressed, including developing concepts for integrating with clinical information settings, establishing financing models, and ensuring security and trust.


Author(s):  
Moutasm Tamimi ◽  
Issam Jebreen

This article describes how small packaged software vendors' enterprises (SPSVEs) have played a massive role in a software environment and contributed dramatically to economies. The purpose of this article is to investigate and categorize the most recent of literature addressing small packaged software vendors' enterprises through a systematic snapshot research in order to identify current research topics and highlight some areas needing more consideration. The pattern of the authors' systematic approach is based on developing a classification scheme which targets a collection of papers published within the period of 2007-2017. The authors analysed one hundred and one papers from peer-reviewed conferences, journals, and workshops to examine the current state of SPSVE's research in order to provide systematic snapshot mapping (SSM) that includes the small packaged software life cycle, research methods used, and country of study. The systematic snapshot of 101 papers reveals that the majority of the literature has focused on the planning and implementation phases of SPSVEs. Figuring out a new model of packaged software life-cycle in SMEs will occur by applying the model of categorizations with regard to the life cycle with its factors and sub factors. Moreover, it will contribute to finding research methods, regions, top ten citation, articles type classifications, and other kinds of classifications. This research is targeted to small packaged software vendors' enterprises (SPSVEs). The authors' finding is intended for software research areas more than economic research areas. This article has presented a high degree of benefits in order to assist researchers in evidence-based decision making in terms of investigating hot research areas in line with the small packaged software vendors' enterprises (SPSVEs).


Cells ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1711 ◽  
Author(s):  
Conor P. Duffy ◽  
Claire E. McCoy

Multiple sclerosis (MS) is an autoimmune disorder characterised by demyelination of central nervous system neurons with subsequent damage, cell death and disability. While mechanisms exist in the CNS to repair this damage, they are disrupted in MS and currently there are no treatments to address this deficit. In recent years, increasing attention has been paid to the influence of the small, non-coding RNA molecules, microRNAs (miRNAs), in autoimmune disorders, including MS. In this review, we examine the role of miRNAs in remyelination in the different cell types that contribute to MS. We focus on key miRNAs that have a central role in mediating the repair process, along with several more that play either secondary or inhibitory roles in one or more aspects. Finally, we consider the current state of miRNAs as therapeutic targets in MS, acknowledging current challenges and potential strategies to overcome them in developing effective novel therapeutics to enhance repair mechanisms in MS.


2017 ◽  
Vol 31 (10-11) ◽  
pp. 864-876 ◽  
Author(s):  
Lara A. Boyd ◽  
Kathryn S. Hayward ◽  
Nick S. Ward ◽  
Cathy M. Stinear ◽  
Charlotte Rosso ◽  
...  

The most difficult clinical questions in stroke rehabilitation are “What is this patient’s potential for recovery?” and “What is the best rehabilitation strategy for this person, given her/his clinical profile?” Without answers to these questions, clinicians struggle to make decisions regarding the content and focus of therapy, and researchers design studies that inadvertently mix participants who have a high likelihood of responding with those who do not. Developing and implementing biomarkers that distinguish patient subgroups will help address these issues and unravel the factors important to the recovery process. The goal of the present paper is to provide a consensus statement regarding the current state of the evidence for stroke recovery biomarkers. Biomarkers of motor, somatosensory, cognitive and language domains across the recovery timeline post-stroke are considered; with focus on brain structure and function, and exclusion of blood markers and genetics. We provide evidence for biomarkers that are considered ready to be included in clinical trials, as well as others that are promising but not ready and so represent a developmental priority. We conclude with an example that illustrates the utility of biomarkers in recovery and rehabilitation research, demonstrating how the inclusion of a biomarker may enhance future clinical trials. In this way, we propose a way forward for when and where we can include biomarkers to advance the efficacy of the practice of, and research into, rehabilitation and recovery after stroke.


1988 ◽  
Vol 253 (2) ◽  
pp. 435-440 ◽  
Author(s):  
A Binet ◽  
J Bolard

Sublytic amounts of the pore former Amphotericin B (AmB) induced transient movements of Na and K ions across the hepatocyte plasma membranes without altering the intracellular free Ca ion concentration. The presence of 1-5 microM-AmB induced leakage of up to 80% of the intracellular K+ within 3 min, followed by Na+ entry without loss of cell viability. A repair process occurred after 3-10 min, which restored the initial cationic concentrations. Progressive binding of AmB to the cells could be observed by following the disappearance of the intense excitonic dichroic doublet of free AmB. It was shown that the amount of AmB binding, responsible for the Na+ and K+ movements, was low (approx. 16% of total AmB). The recovery process occurred when higher amounts of AmB bound to the cells, and was mediated by Na+/K+-ATPase. The c.d. spectrum of AmB bound to isolated hepatocyte plasma membranes, indicated that during this step AmB formed a complex with cholesterol, similar to that formed by the binary mixture in water.


Author(s):  
Aki M. Mikkola

Abstract Welded structures, such as hydraulically driven booms, are disposed to fatigue damage. Design against fatigue requires information on the fatigue resistance of a structure’s critical details and the fatigue loads that act on each detail. The present paper introduces a method based on dynamic simulation for determining the fatigue loads in a hydraulically driven log crane. The detailed simulation model was built up in the MBS-software environment in which the flexible mechanism model and the equations describing the hydraulic system were combined. The complete simulation model was verified by comparing measurements to numerical results. This comparison shows that there is a clear correspondence between the simulated and measured results. It was thus shown that it is possible to create a simulation model which can be used realistically for determining stresses in fatigue analysis. The model was employed in the study of the fatigue loads, which are formed when the crane is being loaded.


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