• Title/Summary/Keyword: Article 21.6

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Buckling of symmetrically laminated plates using nth-order shear deformation theory with curvature effects

  • Becheri, Tawfiq;Amara, Khaled;Bouazza, Mokhtar;Benseddiq, Noureddine
    • Steel and Composite Structures
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    • v.21 no.6
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    • pp.1347-1368
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    • 2016
  • In this article, an exact analytical solution for mechanical buckling analysis of symmetrically cross-ply laminated plates including curvature effects is presented. The equilibrium equations are derived according to the refined nth-order shear deformation theory. The present refined nth-order shear deformation theory is based on assumption that the in-plane and transverse displacements consist of bending and shear components, in which the bending components do not contribute toward shear forces and, likewise, the shear components do not contribute toward bending moments The most interesting feature of this theory is that it accounts for a parabolic variation of the transverse shear strains across the thickness and satisfies the zero traction boundary conditions on the top and bottom surfaces of the plate without using shear correction factors. Buckling of orthotropic laminates subjected to biaxial inplane is investigated. Using the Navier solution method, the differential equations have been solved analytically and the critical buckling loads presented in closed-form solutions. The sensitivity of critical buckling loads to the effects of curvature terms and other factors has been examined. The analysis is validated by comparing results with those in the literature.

Innovative development of regions in the era of digital economy: world experience and Ukrainian realities

  • Samiilenko, Halyna;Khudolei, Veronika;Kharchenko, Yuliia;Povna, Svitlana;Samoilovych, Anastasiia;Khanin, Semen
    • International Journal of Computer Science & Network Security
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    • v.21 no.6
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    • pp.61-70
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    • 2021
  • Within the article, forms of innovation structures are systematized, and those that exist in Ukraine are identified, their features, purpose and functions are clarified, activities and current state of their functioning are analyzed. It is proved that in the conditions of digital economy, domestic innovation structures are underdeveloped and do not fulfill their leading role at the present stage of innovative development of the country. To understand the importance of effective operation of innovation infrastructure, the main world models of innovation development are considered, and the directions of using the experience of their functioning for Ukraine are determined. The main indicators of innovation activity of Ukraine in the context of regions are analyzed. There is a significant differentiation of innovation indicators in the regional context. The cartographic analysis of innovative activity of regions is presented. The mechanism of definition and implementation of priority directions of innovative activity in the context of the digital economy development is offered.

IT - Education In The Context Of Educational Activities

  • Marchenko, Olga;Noskova, Margaryta;Fedorenko, Igor;Semenog, Olena;Vovk, Myroslava;Romanyshyn, Ruslana
    • International Journal of Computer Science & Network Security
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    • v.21 no.6
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    • pp.151-155
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    • 2021
  • The article is based on a model, in the context of which there are two fundamental building blocks of basic library skills and skills in the use of information technology. The former are formed within the framework of educational programs for users of academic libraries, the latter are formed within the framework of initiatives such as the European Computer Driving License. Between the basic and the highest levels of the concept of "information literacy" there are seven heading skills and attributes, the repeated practice of which leads from the position of a competent user to an expert level of reflection and critical awareness of information as an intellectual resource. Freshmen will likely be at the beginning of the arrow, probably practicing only the first four skills, while graduate students and young scientists will be closer to the end and will use seven skills.

Innovation and investment strategies to intensify the potential modernization and to increase the competitiveness of microeconomic systems

  • Tulchynska, Svitlana;Vovk, Olha;Popelo, Olha;Saloid, Stanislav;Kostiunik, Olena
    • International Journal of Computer Science & Network Security
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    • v.21 no.6
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    • pp.161-168
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    • 2021
  • Within the article, strategic guidelines for the modernization of microeconomic systems are identified. Modernization levels of the potential implementation are formalized for enterprises: contractile, extensive technical, technological, progressive, adaptive, steady, intensive, creative, absolute and leader modernization. This allowed to specify the directions and tasks of the enterprise modernization at different management levels. Accordingly, the conditions and criteria for selecting resource tools are set. It is proved that the strategies of the potential modernization of enterprises must be carried out at four main management levels: first, at the enterprise level; secondly, for a particular type of product / service; third, by functional directions of modernization of separate spheres of the enterprise activity or responsibility, fourth, at the level of structural units of the enterprise. It is substantiated that in the processes due to the activation of the potential modernization, the resources are transformed into the results of the innovation implementation and the investment strategies modernization. A system of tasks for the corporate strategies implementation in order to modernize microeconomic systems has been formed. Key vectors of the activation determine the nature and properties of investment resources and necessary innovations to enhance the modernization potential. Therefore, the system of innovation and investment strategies' modernization, based on the vector and resource provision of the modernization process, is specified:

Priorities And Problems In The Development Of Modern Information Technologies In Education

  • Prykhodkina, Nataliia;Tymoshko, Hanna;Zuieva, Alona;Sholokh, Olena;Noskova, Margaryta;Lebid, Yuliia
    • International Journal of Computer Science & Network Security
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    • v.21 no.6
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    • pp.231-236
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    • 2021
  • The article assesses the functioning of the DE system or a separate educational institution, where it can be carried out on the basis of developed criteria or on a regulatory basis. The assessment was carried out on the basis of a qualitative and quantitative nature by comparing the actual state of affairs with a certain "ideal" (educational standard), which must be defined and used as a kind of benchmark against which the assessment is made. Conducted an assessment based on a regulatory framework that represents an alternative approach. It has been emphasized that the exceptional difficulty in determining the ideal indicators (norms) of the activities of universities, it has been found that the normative approach, in which the activities of traditional and open universities are compared, taking into account the differences in social, cultural and economic conditions, is the most acceptable.

A Study on the Prediction for the OCR Technology Development Trajectory based on the Patent and Article Information (특허와 논문정보를 활용한 OCR 기술발전 동향예측에 관한 연구)

  • Won Jun, Kim;Sang Kon, Lee;Sung Kuk, Pyo
    • Journal of Information Technology Services
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    • v.21 no.6
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    • pp.39-51
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    • 2022
  • As the 4th Industrial Revolution emerged as a key to improving national competitiveness, OCR technology, one of the major technologies in the 4th industry is in the spotlight. Since characters in various images contain a lot of information, OCR technology for recognizing these characters has evolved into technology used in many industries. In this paper, trends in OCR technology were identified and predicted using thesis data published in 'RISS' and patent data by International patent classification (IPC) under the theme of Optical character recognition (OCR). For patent data 20,000 patents related to OCR technology from 2002 to 2020 were used as data, and 432 papers from 2012 to 2022 were used as data. Through time-series analysis, each patent data and thesis data were investigated since when OCR technology has developed, and various keyword analysis predicted which technology will be used in the future. Finally, the direction of future OCR technology development was presented through network association analysis with patent data and thesis data.

Guide to Learning Systems Biology for Korean Medicine Researchers (한의학 연구자를 위한 시스템 생물학 학습 가이드)

  • Kim, Chang-Eop
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.30 no.6
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    • pp.412-418
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    • 2016
  • The emergence of systems biology in the 21st century is changing the paradigm of biomedical research. Whereas the reductionist approaches focus on components rather than time or contexts, systems biology focus more on interrelationships, dynamics, and contexts. The key ideas of the systems biology shares much with the philosophy of Korean Medicine(KM) and therefore, the paradigm shift is shedding light on understanding the mechanism of action of KM at system level. In this article, I provide a guide to learning systems biology for KM researchers using online learning resources. Thanks to the recent development of MOOC(massive open online courses) and other online learning platforms, learners can access to plenty of high-quality resources from top-tier universities in the world. I expect this guide help researchers to employ systems biology methods into their KM researches, and will lead to the development of future curricula for training "bi-lingual" experts, KM and computational approaches.

A herbalogical study on the plants of Aspleniaceae in Korea (한국산 꼬리고사리과 식물에 관한 본초학적 연구)

  • Jeong, Jong-Gil
    • The Korea Journal of Herbology
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    • v.26 no.4
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    • pp.59-65
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    • 2011
  • Objective : For the purpose of developing Korean herbalogy of the plants to Aspleniaceae in Korea, the literatures of the successive generations have been thoroughly investigated to prepare this article. Methods : The examined herbalogical books and research paper which published at home and abroad. Results : 1. There are 2 genera and 21 species in Aspleniaceae in Korea and among them medicinal plants are 2 genera and 10 species, some 48% in total. 2. Asplenium genus is a main kind in that it has 20 species among 21 species in Aspleniaceae of which medicinal plants are 9 species. 3. The Herb play medicinal parts if most plants in the Aspleniaceae have the effect of a medicine, the 10 species of which are used for medical care. 4. According to nature and flavor of medicinal plants in the Aspleniaceae, the cold medicinal plants and the bitter medicinal plants take the highest number of them 5. According to the properties and principal curative action, they were classified into drugs for hemostatic 10 species, drugs for clearing away heat 8 species, drugs for detoxification 7 species respectively. 6. None of the species of Aspleniaceae have been found to be toxic. Conclusions : There are totaled to 2 genera and 21 species in Aspleniaceae in Korea and among them medicinal plants are 2 genera and 10 species some 48% in total.

Systemic review: The study on Rhinitis with acupuncture in PubMed and Chinese medical journals (비염(鼻炎)의 침구치료(鍼灸治療)에 대한 최근(最近) 연구(硏究) 동향(動向) -Pubmed와 중의학(中醫學) 학술지(學術紙)를 중심으로-)

  • Kim, Jeung-shin;Kim, Yong-suk;Nam, Sang-soo
    • Journal of Acupuncture Research
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    • v.21 no.1
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    • pp.70-85
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    • 2004
  • Objective: To research the trends of study related to rhinitis and acupuncture in PubMed, and to establish the hereafter direction of treating rhinitis with acupuncture Methods: We searched PubMed and chinese medical journals related to rhinitis and acupuncture. Results: 1. The pattern of the study was as follows: Review article(3), Randomized controlled trials(2), Clinical trial(11), Case report(12). 2. The effect of acupuncture on rhinitis is reported as follows: Acupucture treatment improves the scale of symptoms, nasal airways resistance and velocity of the mucociliary transport, decreasing absolute numbers of blood eosinophils, serum IgE and percentage of nasal eosinophils. Immunologically acupuncture treatment could reduce plasma IL-10 level, control IL-2, and balance between cell-specific pro-inflammatory and anti-inflammatory cytokines, TNF-${\alpha}$ and IL-10. After acupuncture treatment, there is statistically significant changes in IgA, IgE, E-rosette formative rate. 3. Many of these article have affirmative view for therapeutic effect of rhinitis with acupuncture. Statistical test was done only in 6 papers. There showed statically significant results in 4 articles, and in 2 article there showed some clinical improvement but no statically significant changes. 4. In Western countries, alternative treatments are frequent among adults with rhinitis or other allergic disease, and affirmative tendency for acupuncture treatment is increased.

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A Study on the Contract Formation in the Electronic Commerce (전자상거래(電子商去來)의 계약성립(契約成立)에 관한 고찰(考察))

  • Jung, Koae-Young
    • Management & Information Systems Review
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    • v.6
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    • pp.21-43
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    • 2001
  • Contract requires, on principle, a meeting of minds. The basic elements of that contact are an offer by one party and an acceptance of the terms of the offer by the other party. In the electronic commerce an offer and the acceptance of an offer may be expressed by dispach or receipt of data messages. The contract which a data messages is used in the formation may be called electronic contract. The formation of the electronic contract is regulated by the Civil Code or the Commerce Code. The time of the contract formation is regulated by the Civil Code and the Commerce Code. But the time of dispach and receipt of the data message is stated in Article 9 of the Fundamental Law on Electronic Commerce. In this article the dispatch of a data message occurs when it enters an information system outside the control of the originator or of the person who sent the date message on behalf of the originator. The time of receipt of a data message, if the adressee has designated an information system for the purpose of receiving data message, is at the time when the data message enters the designated information system; or if the data message is sent to an information system of the adressee that is not the designated information system, at the time when the data message is retrieved by the addressee; if the addressee has not designated an information system, receipt occurs when the data message enters an information system of the addressee. The time of the electronic contract formation depends on the Civil Code or the Commerce Code and this Article 9 of the Fundamental Law on Electronic Commerce. An electronic contract may be formed by an offer and the acceptance of an offer by dispach or receipt of data message. An offer can not be withdrawn after it is accepted. But in mail-order sales and installment dealing an offer can be revoked after the goods were delivered. In this case the contract is lapsed.

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