bluuebunny/crossref_metadata_2025 huggingface dataset:
Digital Economy: New Opportunities and Threats for the Development of the World Economy
Authors: Strelkova I. A.
Published: December 2018

The paper examines various approaches to the definition of the term «digital economy» in the scientific and business environment along with factors and forms of its development in different countries taking into account the specifics of the current stage of the Russian economy, which is a matter of particular importance in seeking new sources of the world economy growth. The subject of the research is opportunities and threats inherent in the process of digitalization of economies and their impact on the operation of international and national markets as well as the development of the world economy as a whole. The purpose of the paper was to analyze the practical experience in the formation and development of the digital economy in foreign countries and Russia and identify the changes it brings to the activities of state institutions and business structures, established rules of market exchange, the process of promotion and use of innovations. All the above made it possible to determine the country-level specifics of the digital economy evolution reveal the contradictory nature of its manifestations and justify the necessity for active participation of the state in stimulation and support of potentially promising digital innovations in various sectors of the economy. It is concluded that the level of the digital economy development depends on the real-sector performance, the maturity of markets, the state of the national economy. It is highlighted that the criteria for a comprehensive assessment of the results of the economy digitalization must be developed.
ICO as a Business Financing Tool: Myths and Reality
Authors: Lukasevich I. Ya.
Published: December 2018

The subject of the research is new tools for business financing using the initial coin offering (ICO) in the context of the development of cryptocurrencies and the blockchain technologies as their basis. The purpose of the work was to analyze the advantages and disadvantages of the ICO in comparison with traditional financial tools as well as prospects, limitations and problems of using digital financial tools. Conclusions are made in relation to possibilities, limitations and application areas of digital business financing tools, particularly in the real sector, taking into account the specifics of the Russian economy and legislation. It is shown that the main problems of using the digital financial tools are related to the economic sphere and caused by the lack of adequate approaches to evaluation of assets as well as the shortage of objective information. The problems and new tasks of corporate finance in the digital economy are defined.
The Digital Economy in Russia: Its State and Prospects of Development
Authors: Kapranova L. D.
Published: December 2018

The subject of the research is digital technologies regarded as a priority in the economic development of Russia. The objectives of the research are a comprehensive study of the digital economy in Russia and abroad; the analysis of the Digital Economy program as a priority in the economic policy of the country; determining the prospects for the digitalization of the economy. Conclusions. Russia has all the prerequisites needed for further realization of the digital potential and acceleration of the economy digitalization. New technologies will have a significant impact on the development of business and public management, the growth of the life quality, the emergence of new forms of socialization of people and their communications. Russia has the necessary intellectual and scientific base; there are original organizational and technological solutions to create an effective infrastructure of the digital economy. For the implementation of the “Digital Economy of the Russian Federation” program the volume of the R&D funding should be increased and the staff training in the field of high technologies improved.
Digital Economy: “Irrational Optimism” of Management and Financing
Authors: Popov E. V. , Sukharev O. S.
Published: December 2018

The subject of the research is the characteristics of digital technologies as well as factors and basic premises for the development of new technologies. The purpose of the research was to justify the assumption that the irrational optimism is typical not only for financial markets but also for the high-tech market and therefore it can provoke a so-called technological bubble caused by the high speculative potential of the IT sectors due to their output, in particular, information, software, computer components, etc. The research revealed the basic scheme of the speculation in hightech components, which is a consequence of their technical connectivity and the special dynamism of this market that makes companies feel the demand for these components. Measures to restrain the speculative fervor in financial markets are proposed. It is concluded that a high level of microelectronics, materials science and R&D in the IT sectors is a fundamental premise for the implementation of the digitalization program in Russia. Therefore, the current approach to the coordination and financing of state programs has to be changed in favor of reallocating resources to technically linked elements rather than to discrete activities with obscure task definitions.
Regulatory and Legal Support for Stimulation of Business Activities within the Framework of the Industrial Policy
Authors: Abdikeev N. M. , Tyutyunnik I. G.
Published: December 2018

The subject of the research is the social relations that develop in using legal incentives aimed at supporting business activities in the industrial policy. The purpose of the research was to identify gaps in the legislation that impede the promotion of business activities of production companies. The paper examines the main forms of the regulatory and legal support for boosting business activities in the implementation of the industrial policy in order to create conditions for further reforms, attract investment to the Russian economy and thereby improve the social and economic situation in the Russian Federation. The level of the regulatory and legal support of business activities in the industrial policy is evaluated. It is concluded that the legal framework must be improved to enhance the legal support of business stimulation.
Investigating the Tax Burden in the Age of Digitalization of the Economy
Authors: Grabova O. N. , Suglobov A. E.
Published: December 2018

The subject of study is the tax burden under digitalization of the economy. The purpose of study is to harmonize the interests of the state, regions and business entities, as well as to ensure their economic security. The work identifies opportunities for innovations in theoretical foundations of the tax burden which are primarily based on the balance theory, theory of cross-sectoral analysis and the theory of industrial markets. Taking into account the level of generalization, the objectives of the study and the current regulatory framework, the authors systematize the methods for analyzing the tax burden. To confirm the proposed theoretical provisions, a statistical tax burden analysis in the Kostroma region has been carried out. A new approach to the tax burden analysis is proposed in view to rectify existing shortcomings in the methods.
The impact of FDI on setting and implementation of strategic priorities for regional development
Authors: Tedeyeva A. V.
Published: December 2018

The subject of study is foreign direct investment (FDI) being a source for attracting both financial resources to implement investment projects in certain regions and improved production technologies, quality management systems, established sales markets, etc. The purpose of the work is to estimate the relationship between the growth in intensity of FDI inflows into the region’s economy and the increased potential for implementation of regional strategic development priorities. Thus, the growth in dynamics of accumulated foreign direct investment in the region may serve as an indicator of efficient economic strategy aimed at increased investment attractiveness, improved technologies, and broader integration into international economic relations. The article notes that FDI influences setting of strategic priorities designed to achieve desired results. The paper concludes that regions seeking to increase foreign investors’ activity should develop strategic documents that stipulate priorities and ensure the coherence of interests and values between foreign investors and regional business entities. Results: the article presents an analysis of dynamics in FDI inflows into the economy of Russian regions, their sources and sectoral allocation structure. Conclusions are drawn about the FDI effectiveness for financing strategic projects in various regions of the country. Also, the study identifies regions that consistently implement the set priorities and successfully attract FDI to develop manufacturing enterprises.
Specifics of the Impact of Sanctions on the Sectoral Development of the Russian Economy
Authors: Varvus S. A.
Published: December 2018

The subject of research is the consequences of the impact of sanctions on a regional economy through the agricultural sector because the imposition of sanctions and the import substitution policy in agriculture have influenced all stages of the reproduction process, being an extra stimulus to the development of the sector. The paper examines the agricultural sector in the light of the import substitution policy and the effects of the first and second orders of sanctions. The purpose of research was to analyze the economic relationships of the largest agro-industrial holdings that are built along the value-added chain and influence the development of the region. The paper concludes that despite the sanctions, the industry is on the rise. However, due to second-order factors (high loan interest, long payback periods, etc.), the dynamic development trend may exhaust itself. Therefore, the state should continue to support the agriculture that has an indirect effect on the socio-economic level of regional development.
Prospects of Using Virtual Currencies for the Socio-Economic Development of the Country
Authors: Prokofiev M. N. , Borisova E. S. , Vorobyeva A. V.
Published: December 2018

The subject of research is the influence of virtual currencies on the socio- economic development. The purpose of research was to determine the specific features and development prospects of virtual innovation currencies as currencies of the future. The paper analyzes the virtual currency as a phenomenon of the modern payment system. The key characteristics of the crypto currency, their difference from the fiat money, the interrelation with the blockchain technology are indicated. The dynamics of the crypto currency market capitalization is demonstrated by a bitcoin example. The reasons for the attractiveness of the virtual currency for consumers and the growth of its popularity are revealed. The role of the new currency in the development of the world economy is described. The main advantages and disadvantages of the virtual currency as well as the main threats when using it are highlighted. Two opposing views on the future of the crypto currency are considered. As a result, the role of the virtual currency in the socio-economic development of the state is outlined, the prospects for using the currency in question are forecasted, and the factors contributing to its development are listed. It is concluded that virtual currencies established and distributed as a function of time and speed of introduction of scientific and technical achievements in the financial sphere are a technical and economic innovation of the present.
Socio-Economic and Demographic Problems of Sustainable Development of the Russian Regions Enjoying a Special Status
Authors: Fattakhov R. V. , Nizamutdinov M. M. , Oreshnikov V. V.
Published: December 2018

Nowadays, the development of regions in the Russian Federation is determined by a multitude of competing factors that require comprehensive analysis. Of particular interest are territories that differ from the rest of the country due to their unique status. The object of the research is the regions that make up the Baikal natural territory. The subject of research is the analysis of key parameters and sustainability of territorial systems in the Russian Federation enjoying a special status. The purpose of research was to study various modes of sustainability of regional development using a set of objective statistical indicators. It is concluded that according to many significant socio-economic parameters the situation in the regions of the Baikal natural territory is deteriorating, which, in aggregate, leads to degradation of the regional development sustainability and creates prerequisites for further deterioration of the situation. The results obtained can be used by regional administrations as well as by federal bodies.
Analysis of Route Choice for Pedestrian Two-Stage Crossing at a Signalized Intersection
Authors: Guo Yongqing , Wang Xiaoyuan , Meng Xinqiang , Liu Yaqi , Wang Jie
Published: December 2018

Studying pedestrians’ twice-crossing behavior is of great significance to enhance safety and efficiency for pedestrians at signalized intersections. However, limited attention has been paid to analyze and model pedestrians’ behavior patterns of twice crossing. The purpose of this paper is to determine pedestrians' route choices for twice crossing at a signalized intersection, focusing on the waiting position (to cross the street) and walking route. A goal-oriented and time-driven model was proposed to analyze pedestrians’ twice-crossing behavior at signalized intersections, where the two directions have different pedestrian signal timing. A video-recording method was used to collect field data in order to obtain pedestrian preferences in choosing a walking route. It was found that pedestrians in the two directions present different preferences toward walking route, in waiting position, directional change and route type. The results showed that the proposed model is effective in simulating pedestrian route-choice behavior of twice crossing. This research provides a theoretical basis for identifying pedestrian movement intention, optimizing signal timing, and improving pedestrian infrastructure at signalized intersections.
Correlation between Chemical and Index Properties of Soils of Hyderabad Region
Authors: Karira Hemu , Kumar Aneel , Raja Anees , Murtaza Ali
Published: December 2018

Each soil has unique nature of the characteristics and its properties are beyond the control of the designer. Since the soil parameters varies from site to site or location to location, thus selecting the reliable properties of soil is always a challenge for the Geotechnical Engineers. One of the option is intense soil investigations. However, there are various soil properties whose determination is time consuming and expansive. Geotechnical Engineer usually tries to develop mathematical equations specific to a particular soil type. However, a mathematical formula that is more reliable for the type of soil in which the link is genuine. In the light of above discussion, index and chemical properties were not investigated in most of the areas of Hyderabad region. Also correlation between chemical and index properties were not investigated. Correlation between chemical and index properties were not well understood. Thus it is important to develop the appropriate mathematical equations to be able to access the local area. The aim of this study is to determine index and chemical properties of soil selected from different locations of Hyderabad Region and also develop correlation between chemical and index properties of soils of Hyderabad region. Regression analysis have been carried out between Index and chemical properties. Such correlations may be of use to geotechnical engineers, in preliminary estimates of index and chemical properties of soils Hyderabad region and perhaps reduce testing requirements. The data obtained from independent laboratory tests on soils sourced from several locations in Hyderabad region were subjected to regression analysis after the samples had been grouped in A-4, A-6, and A-7-6 using AASHTO classification system. The derived Regression equations can be used to estimate the index and chemical properties of soils in Hyderabad region.
Risk-Deformed Regulation: What Went Wrong with NFPA 805
Authors: Gallucci Raymond HV
Published: December 2018

National Fire Protection Association (NFPA) Standard 805 was incorporated into Title 10 of the U.S. Code of Federal Regulations to allow commercial nuclear plants to transition their existing, deterministic fire protection licensing bases to ones that are “performance-based and risk-informed.”  Both the US Nuclear Regulatory Commission (NRC) and the commercial reactor industry championed this major leap forward in “risk-informed regulation.”  However, hidden behind all the “success” are compromises and manipulations that were necessary to make this “work,” as revealed in this article.  It is written by a former employee of the NRC (views do not nor ever did represent an official position), the first to receive a PhD on a thesis specifically related to fire probabilistic risk assessment (PRA) in nuclear plants, and later hired in 2003 as the expert in fire PRA for the Office of Nuclear Reactor Regulation (NRR).  He participated in the NFPA-805 program from the start in 2005 until mid-2014.  The perspectives here cover that time period, with some extended time specific to issues that the interested reader can find detailed in “Risk-Deformed Regulation:  What Went Wrong with NFPA 805” http://vixra.org/pdf/  (access latest version of entry 1805.0403).NFPA 805 will have been “successful” in that adopting plants are as safe as or safer than before, at a minimum having at least become more knowledgeable of potential safety weaknesses.  Plants that made effective changes will be safer than before, although “effective” conveys that some changes only may have “seemingly” reduced risk.  If such changes were prompted by questionable risk-reduction credits such as those cited later in this paper, then perhaps actual risk-reduction changes that could have been made were not.  At worst, the plant merely missed an opportunity to become “safer,” a consequence of the problems with “risk-deformed regulation.”
Definindo ecossistema de aprendizagem digital em rede: percepções de professores envolvidos em processos de formação
Authors: Moreira José António Marques , Rigo Rosa Maria
Published: December 2018

Numa nova era digital, móvel, leve e líquida, num mundo estruturado de uma forma complexa, ubíquo e híbrido, onde coabitam o analógico e o digital, o real e o virtual, o humano e a máquina, o offline e o online, do reconhecimento de que vivemos numa nova ordem social, cultural, econômica, política e da vertiginosa evolução das tecnologias deparamo-nos com a necessidade de focar a discussão na construção de novos espaços de aprendizagem, como os ecossistemas digitais em rede. São as percepções dos professores em processo de formação relativamente à importância dos ecossistemas digitais em rede que analisamos neste texto.
Desenvolvimento do pensamento algébrico de jovens crianças: potencialidades da exploração de padrões, no contexto do ensino exploratório da matemática
Authors: Alves Beatriz Santos , Canavarro Ana Paula
Published: December 2018

Este estudo, desenvolvido como Design Research, analisa em que medida o trabalho com padrões pode contribuir para o desenvolvimento do pensamento algébrico de jovens alunos. Para tal, concebemos uma experiência de ensino com recurso a padrões de repetição que concretizamos com uma turma de alunos com seis anos de idade, seguindo o ensino exploratório da Matemática.Concluímos que o trabalho com padrões apoia o desenvolvimento do pensamento algébrico, favorecendo o estabelecimento de  relações entre variáveis e o uso de símbolos. No entanto, o sucesso da generalização é influenciado pelas características do padrão relativamente à complexidade do motivo. Sublinhamos a importância da metodologia de trabalho na aula, em especial o foco na comunicação pelos alunos, apoiada por um diálogo inquiridor.
Ensino de matemática e ensino de surdos: por uma intersecção possível
Authors: Da Silva Irami Bila , Vasconcelos Carlos Alberto
Published: December 2018

Este artigo foi desenvolvido a partir de uma seção da dissertação intitulada: Libras como interface no ensino de funções matemáticas para surdos: uma abordagem a partir das narrativas. Para uma discussão mais pontual relacionada à educação de surdos e à educação matemática com foco na comunicação e didática da matemática direcionada para o discente surdo, reflete-se sobre a necessidade de relacionar a Língua Brasileira de Sinais (Libras) com a linguagem simbólica da matemática. A pesquisa deixa claro que é uma condição indispensável para o aluno surdo apropriar-se da situação de ensino, de modo que possa utilizar seus próprios procedimentos a partir da representação que faz da situação, pois representações matemáticas significativas auxiliam na compreensão e no esclarecimento das propriedades e conceitos matemáticos
Ensino interdisciplinar das projeções cartográficas e suas relações com a matemática através de podcasts
Authors: Trentin Marco Antônio Sandini , Scolaro Joelma Kominkiewicz
Published: December 2018

O podcast tem se mostrado um recurso interessante no processo de ensino e aprendizagem. Reconhecendo suas potencialidades, decidiu-se por inseri-lo em sala de aula, de forma interdisciplinar, envolvendo matemática e geografia com alunos do 8º ano do Ensino Fundamental. A aplicação do projeto teve uma duração de quatro semanas, tendo como objetivo principal trabalhar as projeções cartográficas, da geografia, através das planificações e cálculos matemáticos, usufruindo de meios tecnológicos, entre eles a produção de podcasts. Os alunos responderam a um questionário a fim de se verificar as potencialidades do uso do podcast em sala de aula e qual sua contribuição para o ensino e a aprendizagem. Ao final desta atividade pode-se perceber que os alunos são favoráveis e receptivos à utilização dos podcasts, sendo esta então uma alternativa à prática pedagógica.
Educação Matemática e Mobile Learning: reflexões sobre a utilização de app`s e jogos digitais
Authors: Santos William de Souza , Alves Lynn Rosalina Gama
Published: December 2018

Cada dia que passa estamos sendo mais absorvidos pela utilização de tecnologias digitais em diversas esferas da sociedade. Dentro do contexto educacional, o Mobile Learning vem discutindo e trazendo estratégias de como utilizar artefatos como os dispositivos móveis nas aulas de diversas disciplinas. Por este motivo, o objetivo deste artigo é discutir como a interação com app’s e jogos digitais em dispositivos móveis podem contribuir no ensino e aprendizagem da matemática.
Tibia Kırıklarının Eksternal Fiksatör ile Tespitinin Malzeme ve Geometri Unsurları Yönünden Değerlendirilmesi
Authors: BÜLBÜL Hüseyin Furkan
Published: December 2018

Bilgisayar destekli uygulamalar son dönemde cerrahi öncesi planlama ve detaylandırma amaçlı sıklıkla kullanılmaktadır. Bu sistemler temel olarak, 3B tarama verilerinin yada radyoloji görüntülerinin yazılımlar yardımıyla işlenmesi sonrasında elde edilen modelin uyulmaları ile işlev bulmaktadır. Bu amaç ve yöntemler ile teşhis-tedavi planlamasının yapılması, geliştirilmeye ve cerrahinin uygulamasına alınmaya da artan oranda uygulanmaktadır. Aynı zamanda bu tarz çalışma ve uygulamalar, kemik/yumuşak doku yapılarının anatomik olarak yük taşıma uygunluklarını da hesaplamak için uygun yöntemlerdir. Sonlu elemanlar yöntemi de bu tip bir uygulama ara yüzü olup son yıllardaki yazılımların çözüm doğrulukları nedeniyle ortopedi ve mekanik alanında sıklıkla tercih edilmektedir. Ortopedi alanında, kol ve bacak kırıklarının tedavisinde harici tespit sistemleri yaygın olarak kullanılmaktadır. Hali hazırda bulunan veya temin edilebilen harici tespit elemanları kendi alanlarında değişik tür ve kısıtlamalara sahiptir. Bu çalışmada alt ekstremite kemiklerinden tibia’nın harici tespit sistemleri ile kırık tespiti sonrasındaki yük taşıma miktarı farklı geometri ve malzemeye sahip tespit sistemleri için değerlendirilecektir. Böylelikle harici tespit sistemlerine bir kıyaslama ile öneriler sunulmuş olur. Buna ek olarak, değişik boyutlarda kurgulanabilen yeni bir harici tespit sistemi ve bu sistemin geometrik modeli de elde edilmiş olur.
New occurrence of the red lionfish Pterois volitans (Linnaeus, 1758) in the north eastern Mediterranean (Yeşilovacık Bay)
Authors: AYAS Deniz , Şen Ağılkaya Gülsemin , Yağlıoğlu Deniz
Published: December 2018

This paper presents the new occurence of the the red lionfish (Pterois volitans Linnaeus 1758). The lessepsian red lionfish Pterois volitans (Linnaeus, 1758) (Actinoptery: Scorpaeniformes: Scorpaenidae), in the native Pacific Ocean and the Atlantic Ocean, living alone on the hillside and around the coral reefs and rocky bottom layers, usually at depths of 0-50 m, is an invasive species for the Mediterranean. A male specimen of the red lionfish was caught alive by a commercial trawl fishing boat in the North-Eastern Mediterranean (Yeşilovacık Bay) (36°07'32.5"N 33°36'31.6"E) on 26 March 2017. This is the third record of P. volitans from the Mediterranean Sea basin. The present short communication reported the first record of P. volitans from Yeşilovacık Bay.
Yongalevha Üretiminde Hammadde Kaynaklarının Optimizasyonu Ve Teknolojik Yönden İncelenmesi
Authors: GULER Cengiz , İBİŞ Murat
Published: December 2018

Günümüzde yonga levha üretiminde yurt
dışı kaynaklı özellikle ABD'den getirilen çam chips'i kullanılmaktadır. Dışa
bağımlılığı azaltmak amacıyla mevcut kaynaklarımızdan endüstriyel atıklardan
elde edilen kapak türü malzeme alternatif hammadde olarak kullanılabilirliği
araştırılmıştır. Bu amaçla tüm levha gruplarında meşe % 15, kavak % 5 ve talaş
%10 oranında sabit tutularak ithal çam yongası % 70, 65, 55, 50, 45 ve 40,
kapak tahtası sırasıyla, % 0, 5, 10, 15, 20, 25 oranlarında fabrikasyon
ortamında üretimler gerçekleştirilmiştir. Levhaların üretiminde yapıştırıcı
olarak üre formaldehit, sertleştirici olarak amonyum sülfat ve hidrofobik madde
olarak parafin kullanılmıştır.  Her bir
grup levhadan örnekler elde edilerek fiziksel özelliklerden, yoğunluk, rutubet
miktarı, su alma ve kalınlık artımı ve yüzey ağırlığı, mekanik özelliklerden
eğilme direnci, elastikiyet modülü, yüzeye dik yönde çekme direnci ve vida
tutma direnci standartlara uygun olarak incelenmiştir. Buna göre ithal yolla
temin edilen hazır chipsin levha üretimde kullanımı azaltılarak bunun yerine
aynı üretim koşullarında kapak tahtasının levha üretimde değerlendirilmesinin teknolojik
olarak standartlara uygun olduğu görülmüştür.
ConPdm ve ConAum (n+m=100) Nanoalaşımlarının MgO(001) Yüzeyi Üzerindeki Yapısal Özelliklerinin İncelenmesi
Authors: Taran Songül , Arslan Haydar
Published: December 2018

Bu
çalışmada, MgO(001) yüzeyi
üzerinde desteklenen ConAum(n+m=100)  ve ConPdm(n+m=100) ikili
metal nanoalaşımlarda Co atom
oranının  %10 ile %90 arasında
değiştirilmesi sonucu her bir kompozisyonun yapısal özellikleri incelenmiştir. İkili metal
nanoalaşımların global minimum(GM) yapıları Basin-Hopping optimizasyon yöntemi
ile elde edilmiştir. Atomlar arası etkileşmeleri inceleyebilmek için Gupta çok
cisim potansiyel enerji fonksiyonu kullanılmıştır. Optimizasyonu yapılan ConAum
ve ConPdmikili
metal nanoalaşımların MgO(001) yüzeyi üzerindeki yapısal özelliklerinde Au ve
Pd atomlarının sebep olduğu benzerlik ve farklılıklar incelenmiştir. Ayrıca, nanoalaşımların
yüzey üzerindeki epitaksiyel yerleşimleri de ele alınmıştır.
Experimental Vibration Analysis of Titanium Aluminum Nitride (TiAlN) Coated Milling Cutting Tool Effects on Surface Roughness of AISI 4140 Steel Products
Authors: YILDIZ Mehmet , SARUHAN Hamit
Published: December 2018

The vibration response of material removal process in milling has a significant effect on surface roughness of the product with respect to cutting tool coating. Recent requirements for improving of surface roughness have heightened the need for milling with coated cutting tools. The main objective of this study is to experimentally investigate the role of vibration behavior of cutting tool coated with titanium aluminum nitride (TiAlN) on an AISI 4140 alloy steel work piece surface roughness. The vibration data from work piece were recorded for three milling cutting tools with tool diameters of 10, 12, and 16 𝑚𝑚 and for each diameter different coating thicknesses of 0.0, 2.0, 3.0, and 5.0 𝜇 (microns) were used respectively. Vibration signals of work piece during milling process in two directions were collected and a roughness tester was used to measure the surface roughness of work piece. The results showed that vibration due to cutting tool coating thickness has a significant effect on surface roughness of work piece. It has been observed that the maximum average surface roughness was obtained for 16 𝑚𝑚 tool diameters with coating thickness of 5.0 𝜇 while the minimum average surface roughness was obtained for 10 mm tool diameters with coating thickness of 3.0 𝜇. Surface roughness can be improved by reduction sources of vibration by using appropriate cutting tool coating thickness.
AZ Serisi Mg Alaşımlarının Korozyon Davranışlarında β-Fazının Rolü
Authors: CANDAN Şennur , ÇİM Serdar , EMİR Seren , CANDAN Ercan
Published: December 2018

AZ serisi Mg alaşımlarının korozyon mekanizmalarını anlamaya yönelik literatürde birçok çalışma bulunmasınarağmen, bu alaşımların korozyonunda β fazının rolü üzerindeki görüşler çelişkilidir. Dolaysıyla bu derlemeçalışmasında, AZ serisi Mg alaşımlarının korozyonu üzerine mikro alaşımlama elementlerinin ve katılaşmahızının β fazı yapısına olan etkileri irdelenmiştir. Ayrıca, alaşımların korozyon özelliklerinde yüzeyde oluşanoksit filmi-β fazı ilişkisi de değerlendirilmiştir.Sonuçlar, AZ serisi Mg alaşımlarındaki β fazının boyutuna ve miktarına bağlı olarak hem korozyonu arttırıcıhem de engelleyici rol oynadığını göstermiştir. Literatürde, bazı araştırmacıların neden β fazının bariyer etkisi ilekorozyonu engellediğini veya bazılarının tam tersi neden β fazının mikrogalvanik çift oluşturarak galvanikkorozyonu arttırdığı konusundaki çelişkili değerlendirmelerin üretim yöntemlerinden ve buna bağlı β fazıyapısındaki farklılıklardan kaynaklandığı sonucuna varılmıştır.
Nesnelerin İnterneti Teknolojileri ile Gerçek Zamanlı Okul Servisi ve Öğrenci Takip Sistemi Tasarımı
Authors: KÜÇÜK Kerem , ÇELİK Buse , BAYILMIŞ Cüneyt
Published: December 2018

Nesnelerin İnterneti tabanlı çözümler sağladığı
kolaylıklar ve maliyetlerinin etkin olması nedeni ile gün geçtikçe artan
kullanıma sahip olmaya başlamıştır. Özellikle son yıllarda gelişmeye başlayan
akıllı şehir kavramı ile birlikte hemen hemen her alanda var olmaya başlayan bu
teknolojiler yüksek hızda veri iletişimini destekleyebilmektedirler. Bu
çalışmanın amacı servis araçlarının ve öğrencilerin hareketlerinin gerçek
zamanlı olarak izlenmesidir. Böylelikle araca biniş ile okula varıncaya kadar
geçen süre içerisinde tüm grupların bilgilendirilmesi ve öğrencilerin güvenli
bir biçimde okula ulaştırılması sağlanmaktadır. Bu çalışma ile el ile
yapılmakta olan tüm işlemler sistematik bir hale getirilmektedir. Bu amaç ile HM-11
Bluetooth düşük enerji modülü işaretçi cihazları, gerçek zamanlı olarak
çalışabilen bir veri tabanı olan Firebase bulut platformunu, işaretçi cihazlara
erişimi sağlayabilen MIT App Inventor Android mobil uygulamasını ve web
uygulamasını kullanan okul servisi ve öğrenci takip sistemi sunulmaktadır.
Image Denoising with Modified Grey Wolf Optimizer
Authors: ARDAÇ Hüseyin Avni , ERDOĞMUŞ Pakize
Published: December 2018

In this study, image denoising has
been realized with with the one of the recent Nature-Inspired optimization
algorithms, Grey Wolf Optimizer(GWO). GWO is one of the recent most studied
continous optimization algorithm which performs better than the other
algorithms. In this study, ten test images have been selected and gaussian  noise has been added  with some variance values.  After the noisy images have been attained,
these noisy images have been filtered with convulation in spatial domain. Filter
coefficents have been trained with GWO, Modified Grey Wolf Optimizer(MGWO) and
Genetic Algorithm(GA). Weiner filtering is also applied on the images for image
denosing. The results show that Weiner Filter outperforms GWO trained filters
on most of the images.  MGWO performance
is better then GWO and the results show that MGWO can also be used as an
alternative method for image denoising. In the future studies, adaptive MGWO
can be enhanced for much more succesfull image denoising process.
Üç Fazlı Gerilim Kaynaklı Evirici için SDGM, ÜHDGM ve HDGM Tekniklerinin MATLAB/SİMULİNK ile Karşılaştırmalı Analizi
Authors: DURSUN Mustafa , DÖŞOĞLU M.kenan
Published: December 2018

Bazı
güç elektroniği devrelerinin kontrolünde darbe genişlik modülasyon (DGM)
teknikleri büyük önem taşımaktadır. Mikroişlemci teknolojilerinin gelişmesi
darbe genişlik modülasyon tekniklerinin çeşitlilik kazanmasına yol açmıştır. En
yaygın kullanılan teknikleri sinüs DGM (SDGM), uzay vektör DGM (UVDGM), üçüncü
harmonik DGM (ÜHDGM) ve histerisiz DGM (HDGM) olarak sıralayabiliriz. Bu
tekniklerin bir birlerine olan avantaj ve dezavantajları bulunmaktadır. Bu
çalışmada SDGM, ÜHDGM ve HDGM teknikleri MATLAB/SIMULINK ortamında üç fazlı
gerilim kaynaklı bir eviriciye uygulanmıştır. 1 kW’lık bir omik yük üzerinde
oluşan akım, gerilim grafikleri ile gerilimde meydana gelen toplam harmonik
bozulumların(THB) karşılaştırılması yapılmıştır. Simülasyon sonuçlarından, HDGM
yönteminde oluşan harmonik seviyenin IEEE 519 standartlarına en uygun olduğu
görülmüştür.
Viscum album L. subsp. austriacum (Wiesb.) Vollman (Çam ökse otu)'un Pinus sylvestris L. (Sarıçam)'in Odun Elemanlarına Etkisi
Authors: GÖL Çağdaş , SERDAR Bedri , ÖZTÜRK Murat , COŞKUNER Kadir Alperen , BİLGİLİ Ertuğrul
Published: December 2018

Ökse otları herdem yeşil, yarı
parazit angiosperm bitkileridir. Ağaçların dal ve gövde gibi kısımların da
haustorium adı verilen kök benzeri yapılarını kullanarak konukçusunun ksilemine
nüfuz ederler. Bu sayede konukçunun topraktan aldığı su ve mineral maddelerini
alarak kendi fotosentezlerini yapabilmektedirler. Ökse otları konukçusu olduğu
ağaçlarda önemli morfolojik ve anatomik değişikliklere sebep olurlar. Bu
çalışmanın amacı; Viscum album L.
subsp. austriacum (Wiesb.) Vollman
(çam ökse otu)’un Pinus sylvestris L.
(Sarıçam)’in odun elemanları üzerine olan etkilerinin nicel olarak
belirlenmesidir. Bu amaçla Gümüşhane ili, Torul Orman İşletme Müdürlüğü
sınırları içinde, Sarıçam’ın doğal yayılış gösterdiği ormanlık alanlardan çam
ökse otu bulaşmış ve bulaşmamış toplam 20 adet ağaç (5 kontrol, 15 bulaşık)
belirlenmiştir. Belirlenen bu ağaçların gövdelerinden alınan odun disklerinden
enine, boyuna radyal ve boyuna teğetsel yönde kesitler alınmış ve gerekli
preparasyon işlemleri yapılmıştır. Hazırlanan daimi preparatlar üzerinde odun
örneklerine ait anatomik parametrelere ilişkin; ilkbahar ve yaz odunu boyuna
traheit çift çeper kalınlıkları, ilkbahar ve yaz odunu boyuna traheit lümen
(alanları, teğet çapları ve radyal çapları), özışını (genişlikleri,
yükseklikleri ve 1 mm’deki sayıları), 1 mm2’deki boyuna traheit
sayıları ve boyuna traheit uzunluklarına ilişkin ölçüm ve sayımlar yapılmıştır.
Ölçümler foto mikroskoba bağlı görüntü analiz sistemi yardımıyla
gerçekleştirilmiştir. Ölçülen özellikler arasında kontrol örneklerine kıyasla
bulaşık olan örneklerde, anatomik parametrelerde %18,46 ile %81,68 arasında bir
değişimin olduğu belirlenmiştir.
Editor's Note
Authors: Gow & Kim .
Published: December 2018

Editor's Note
Fenomena Culture Shock Pada Mahasiswa Perantauan Tingkat 1 Universitas Negeri Padang
Authors: Handayani Puji Gusri , Yuca Verlanda
Published: December 2018

This study aims to describe culture shock of students outside and inside Sumatra and examine the differences in student culture shock based on gender and region of origin. The study population was 2018 level 1 / class students at Padang State University who migrated to Padang from outside and inside West Sumatra with a sample of 300 students selected by simple random sampling technique. The instrument used is "Inventory Culture Shock" (ICS) with a reliability of 0.74. The findings of the study show that culture shock of students from outside West Sumatra is classified as medium and originating from within West Sumatra is relatively low. Then, there was no difference in culture shock between students from outside and in West Sumatra.
Metodologias colaborativas não extrativistas e comunicação: articulando criativamente saberes e sentidos para a emancipação social
Authors: Fasanello Marina Tarnowski , Nunes João Arriscado , Porto Marcelo Firpo
Published: December 2018

Este artigo discute a proposição de metodologias colaborativas não extrativistas e sua relação com a comunicação a partir da obra de Boaventura de Sousa Santos. Partindo de autores como Orlando Fals Borda e Paulo Freire, Santos questiona as metodologias qualitativas que extraem conhecimentos apartados das lutas sociais e não reconhecem os saberes dos sujeitos investigados. A partir desse referencial e de uma pesquisa sobre documentários produzidos no contexto das lutas sociais contra os agrotóxicos e pela agroecologia, buscamos levantar possibilidades metodológicas relacionais que apontem para processos de co-labor-ação e co-criação. A construção de novas narrativas e conhecimentos dilui fronteiras entre ciência e arte, ao mesmo tempo que resgata e avança na perspectiva freiriana da comunicação enquanto um tornar comum. Entrevistas narrativas e contação de histórias da literatura oral são exemplos dados no artigo que apontam para uma abordagem teórico-poética como alternativa.
Por uma ciência democrática e cidadã
Authors: Araújo Kizi Mendonça de
Published: December 2018

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Retomar o debate logo
Authors: Zaluar Alba Maria
Published: December 2018

A nota apresenta um histórico do debate público sobre violência e criminalidade e mostra a necessidade de retomar o debate ao seu nível anterior, tratando o tema não só como uma questão de segurança pública, mas também de saúde. Reafirma que é preciso enfrentar o contexto social em que jovens se matam mutuamente, que criam um inimigo odiado e desumanizado. Faz uma crítica à polarização em curso no país, na qual a possibilidade de ter compaixão pelo sofrimento do outro desapareceu. Sugere iniciativas que podem ajudar a enfrentar a disseminação do etos guerreiro, consolidando a segurança pública baseada na cidadania. E relembra que enfrentar a violência é enfrentar as assimetrias causadas por dominações autoritárias, seja pelo Estado, seja por facções criminosas.
2008 KÜRESEL KRİZİNİN TÜRKİYE EKONOMİSİNE ETKİLERİ “KONYA ORGANİZE SANAYİ BÖLGESİ ÖRNEĞİ”
Authors: AFŞAR Bilge , ERKOÇ Yasemin
Published: December 2018

2008 yılında
Amerika Birleşik Devletleri’nde başlayan ve giderek tüm dünya ülkelerine hızlı
bir şekilde yayılan ekonomik kriz; küreselleşmenin de etkisi ile ekonomik sistemin
derin sorunu haline gelmiştir.

Ekonomik küreselleşme ve finansal
piyasaların bütünleşik olması gelişmekte olan ve kırılgan ekonomik yapıya sahip
ülkeleri derinden etkilemiştir. Büyüme rakamlarındaki düşüş, sanayi
üretimindeki azalış, işsizlik oranlarındaki artış gibi makro ekonomik verilerin
kötüleşmesi devlet harcamalarının azaltılması gibi durumların yaşanması
ülkelerin yoksulluk oranlarında artışa neden olurken bir taraftan da devletleri
sosyal harcamalar sorunu ile karşı karşıya bırakmıştır. Krizlerin hızlı bir
şekilde yayılması ve etkisinin derin olması, küreselleşme ve ekonominin
kuvvetli bağlantısını ortaya koymaktadır.

Bu çalışmada 2008 yılında dünyada yaşanan küresel
krizin etkilerinin Türkiye ve Konya ekonomisi açısından değerlendirilmesi
hedeflenmiştir. Bu doğrultuda ilk olarak Türkiye ve daha sonra Konya’nın kriz
öncesi ve sonrası bazı ekonomik göstergeleri incelenmiştir. Firmaların krizden nasıl
ve ne boyutta etkilendikleri, ve ayrıca kriz süresince krizden korunmak için
firmaların kriz yönetimine yönelik ne tür önlemler aldığı ve kriz sürecini
nasıl yönettikleri çalışma dahilindedir.
TÜRK BANKACILIK SEKTÖRÜNDE ETKİNLİK: BORSA İSTANBUL’DA İŞLEM GÖREN TİCARİ BANKALARDAN KANITLAR
Authors: IŞIK Özcan
Published: December 2018

Bu çalışmanın amacı 2012-2017 döneminde Türk bankacılık sektöründe faaliyet
gösteren ve pay senetleri Borsa İstanbul’da işlem gören 10 ticari bankanın
finansal etkinliğini değerlendirmektir. Çalışmada kazanç odaklı yaklaşım doğrultusunda iki girdi (faiz giderleri
ve faiz dışı giderler) ve iki çıktıdan (faiz gelirleri ve faiz dışı
gelirler) oluşan bir veri seti analiz edilmiştir. Bankaların etkinliğinin
ölçümünde girdi odaklı BCC veri zarflama analizi kullanılmıştır.  Bulgular göstermektedir ki tüm yıllarda sadece
iki banka tam etkinliğe ulaşabilmiştir.
The scheme of the anthropogenic radioactive pollution of Russian Arctic
Authors: Grigoriev A. G. , Nesterova Е. N. , Neevin I. А. , Kholmyanskii M. A.
Published: December 2018

The paper presents the scheme of the anthropogenic radioactive pollution of Russian Arctic and describes the main principles of its compilation. The scheme shows the main polluted onshore and offshore areas and defines the supposed sources of the pollution.
Investigation of the temporary variability of the characteristics of atmospheric circulation in the area of Spitsbergen
Authors: Prokhorova U. V. , Sviashchennikov P. N. , Ivanov B. V.
Published: December 2018

The article presents the results of a study of the temporal variability of atmospheric circulation in the Arctic region. The classifi cation of atmospheric circulation forms according to Wangenheim — Girs for cold (November – April) and warm (March – October) periods of the year are used. We consider the repeatability of series with one form of circulation for gradations of duration and variability in time of this characteristic, as a parameter of stability of synoptic processes in the region under consideration. As additional characteristics, the horizontal gradients of the pressure field are calculated according to the atmospheric pressure at sea level. Estimates of the variability of the meridional and latitudinal directions of air advection are obtained.
Stages of sea ice development in the Laptev sea
Authors: Hotchenkov S. V.
Published: December 2018

Variability of the stages of sea ice development in the Laptev Sea is assessed with 10-days periodicity for the autumn — winter period on a basis of AARI digital ice charts for 1997–2017. Difference in formation of the stages of ice development (ice thickness) was revealed between the drifting and fast ice, which is manifested in an earlier appearance of the first-year ice for the fast ice area and in its partial concentration. On average, the ice cover of the Laptev Sea is by 60 % composed of thick first-year ice, most of which is formed within the fast ice area — 38%, while the area of drifting ice is 1,5 times larger.
Aerosol component of the atmospheric surface layer according observations of the expedition “North-2015”
Authors: Popovicheva O. В. , Makshtas A. P. , Movchan V. V. , Pеrsiantseva N. М. , Timofeev М. A. , Sitnikov N. M.
Published: December 2018

The results of the atmospheric sea surface layer aerosol composition studies executed during expedition “Sever-2015” on the route from Arkhangelsk to the Severnaya Zemlya archipelago from October 9 to 26, 2015 are presented. The data about mass concentration of black carbon (EBC) obtained with high spatial-temporal resolution in the White, Barents and Kara Seas showed its signifi cant variability: from background values about 20 ng/m3 to values of more than 1000 ng/m3 during periods of air mass transfer from the continent. Cluster analysis of the microstructure of natural arctic aerosols gave possibility to identify the dominant groups of particles of sea salt and calcium sulfate. In case the increase of EBC up to 250 ng/m3 the groups of carbon-containing aerosols and particles rich in sulfur, characteristic for emissions from the combustion of natural fuel were revealed.
Seasonal variability of ice temperature upon the results of measuring at “North Pole-38” drifting station
Authors: Kharitonov V. V.
Published: December 2018

Vertical profiles of ice temperature were measured in November 2010 – September 2011 at “North Pole-38” drifting station. These observations were made at five locations, including young ice, residual first-year ice, second-year ice, multi-year ice. Methods of measurements are considered. Time-temperature profiles for all types of ice as well as time profile for the gradient of temperature of ice, as an example, are shown. A snow cover gives substantial thermal resistance, reducing a heat flux between atmosphere and ocean. The periods of warming-up and cooling of ice in the annual cycle alternate with periods, when vertical distribution of ice temperature close to linear: with a maximal gradient in winter and zero gradient in summer. A general pattern of the seasonal evolution of ice temperature is discussed. A cold front is propagating down through the ice from October to June. Ice growth lasts, on the average, to a middle of May. Warming of ice to the freezing point occurs mainly in August.
Main results of the engineering survey in the area of stations Mirny and Progress and fi eld base Molodezhnaya, East Antarctica, in the fi eld season of 62 RAE (2016/17)
Authors: Popov S. V. , Pryakhin S. S. , Bliakharskii D. P. , Belkov A. D. , Kuznetsov V. L. , Kashkevich M. Р. , Tyurin S. V.
Published: December 2018

The results of engineering surveys in the area of the Mirny and Progress stations and fi eld base Molodyozhnaya are discussed in the paper. During the austral summer fi eld season of the 62nd RAE (2016/17) wide complex of the scientifi c and applied research has been carried out. It included the engineering, aerial photography, glaciological, drilling, geodetic and GPR investigations to ensure the safety of transport operations in the area of Russian stations Mirny and Progress (East Antarctica). The scientifi c tests to study sea ice have been carried out on the frozen water area of Nella Fjord, near Progress Station.
“Atlantification” as a Possible Cause for Reducing of the Sea-Ice Cover in the Nansen Basin in winter
Authors: Aksenov P. V. , Ivanov V. V.
Published: December 2018

The paper presents arguments in favor of an explanation of the reduction of the ice-covered area in the Nansen basin of the Arctic Ocean (AO) in winter by the so-called “atlantification “ — the strengthening of the influence of waters of Atlantic origin on the hydrological regime of the Arctic Ocean. We hypothesize that the main agent of “atlantification” in theWesternNansenBasinis winter thermal convection, which delivers heat from the deep to the upper mixed layer, thus melting sea ice and warming the near-surface air. To check up this hypothesis we used ocean reanalysis MERCATOR data for time interval 2007–2017. The quantitative criterion of thermal convection, based on the type of vertical thermohaline structure in the upper ocean layer, was applied to access the change of convection depth between climatic values in 1950–1990 and the present time. The main conclusion of the paper can be summarized as the following. Due to a gradual reduction of sea ice in the 1990s, the vertical stratification of waters in theWesternNansenBasinhas changed. As a result, the potential for penetration of vertical thermal convection into the warm and saline Atlantic layer and the consumption of heat and salt content of this layer for warming and salinification of the overlying waters increased, thus leading to additional loss of sea ice in winter.