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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 428 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
AAS Open Research     Open Access   (Followers: 2)
ABC Journal of Advanced Research     Open Access  
Academic Voices : A Multidisciplinary Journal     Open Access   (Followers: 2)
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 18)
Acta Materialia Transilvanica     Open Access  
Acta Nova     Open Access   (Followers: 1)
Acta Scientifica Malaysia     Open Access  
Acta Scientifica Naturalis     Open Access   (Followers: 3)
Adıyaman University Journal of Science     Open Access  
Advanced Science     Open Access   (Followers: 13)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 10)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 5)
Advances in Research     Open Access   (Followers: 1)
Advances in Science and Technology     Full-text available via subscription   (Followers: 17)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 8)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 2)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 4)
Akademik Platform Mühendislik ve Fen Bilimleri Dergisi     Open Access   (Followers: 2)
American Academic & Scholarly Research Journal     Open Access   (Followers: 6)
American Journal of Applied Sciences     Open Access   (Followers: 27)
American Journal of Humanities and Social Sciences     Open Access   (Followers: 15)
Anadol University Journal of Science and Technology B : Theoritical Sciences     Open Access  
Anadolu University Journal of Science and Technology A : Applied Sciences and Engineering     Open Access  
ANALES de la Universidad Central del Ecuador     Open Access   (Followers: 4)
Anales del Instituto de la Patagonia     Open Access  
Annali dell'Istituto e Museo di storia della scienza di Firenze     Hybrid Journal  
Applied Mathematics and Nonlinear Sciences     Open Access  
Apuntes de Ciencia & Sociedad     Open Access  
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 5)
Archives Internationales d'Histoire des Sciences     Partially Free   (Followers: 6)
Archives of Current Research International     Open Access   (Followers: 1)
ARO. The Scientific Journal of Koya University     Open Access  
ARPHA Conference Abstracts     Open Access   (Followers: 7)
ARPHA Proceedings     Open Access   (Followers: 4)
ArtefaCToS : Revista de estudios sobre la ciencia y la tecnología     Open Access   (Followers: 1)
Asia-Pacific Journal of Science and Technology     Open Access  
Asian Journal of Advanced Research and Reports     Open Access   (Followers: 2)
Asian Journal of Applied Science and Engineering     Open Access   (Followers: 2)
Asian Journal of Scientific Research     Open Access   (Followers: 3)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 7)
Australian Field Ornithology     Full-text available via subscription   (Followers: 4)
Australian Journal of Social Issues     Hybrid Journal   (Followers: 7)
Avances en Ciencias e Ingeniería     Open Access  
Avrasya Terim Dergisi     Open Access  
AZimuth     Full-text available via subscription   (Followers: 2)
Bangladesh Journal of Scientific Research     Open Access   (Followers: 1)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 3)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 10)
Berkeley Scientific Journal     Full-text available via subscription  
BIBECHANA     Open Access   (Followers: 2)
BibNum     Open Access  
Bilge International Journal of Science and Technology Research     Open Access   (Followers: 1)
Bioethics Research Notes     Full-text available via subscription   (Followers: 16)
Bistua : Revista de la Facultad de Ciencias Básicas     Open Access  
Bitlis Eren Üniversitesi Fen Bilimleri Dergisi     Open Access  
Bitlis Eren University Journal of Science and Technology     Open Access   (Followers: 1)
Black Sea Journal of Engineering and Science     Open Access  
Borneo Journal of Resource Science and Technology     Open Access  
Brazilian Journal of Science and Technology     Open Access   (Followers: 2)
Bulletin de la Société Royale des Sciences de Liège     Open Access  
Bulletin of the National Research Centre     Open Access  
Butlletí de la Institució Catalana d'Història Natural     Open Access  
Celal Bayar Üniversitesi Fen Bilimleri Dergisi     Open Access   (Followers: 1)
Central European Journal of Clinical Research     Open Access  
Chain Reaction     Full-text available via subscription  
Ciencia & Natura     Open Access   (Followers: 1)
Ciencia Amazónica (Iquitos)     Open Access   (Followers: 1)
Ciencia en Desarrollo     Open Access   (Followers: 2)
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia Ergo Sum     Open Access  
Ciência ET Praxis     Open Access  
Ciencia y Tecnología     Open Access  
Ciencia, Docencia y Tecnología     Open Access  
Ciencias Holguin     Open Access   (Followers: 3)
CienciaUAT     Open Access   (Followers: 1)
Citizen Science : Theory and Practice     Open Access   (Followers: 1)
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Communications in Applied Sciences     Open Access  
Comprehensive Therapy     Hybrid Journal   (Followers: 3)
Comunicata Scientiae     Open Access   (Followers: 1)
ConCiencia     Open Access  
Conference Papers in Science     Open Access   (Followers: 2)
Configurations     Full-text available via subscription   (Followers: 10)
COSMOS     Hybrid Journal  
Crea Ciencia Revista Científica     Open Access   (Followers: 3)
Cuadernos de Investigación UNED     Open Access  
Cumhuriyet Science Journal     Open Access  
Current Issues in Criminal Justice     Hybrid Journal   (Followers: 15)
Current Research in Geoscience     Open Access   (Followers: 8)
Dalat University Journal of Science     Open Access  
Data     Open Access   (Followers: 4)
Data Curation Profiles Directory     Open Access   (Followers: 4)
Dhaka University Journal of Science     Open Access  
Dharmakarya     Open Access  
Diálogos Interdisciplinares     Open Access  
Digithum     Open Access   (Followers: 2)
Eastern Anatolian Journal of Science     Open Access  
Einstein (São Paulo)     Open Access  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Elkawnie : Journal of Islamic Science and Technology     Open Access  
Emergent Scientist     Open Access  
Enhancing Learning in the Social Sciences     Open Access   (Followers: 9)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Entramado     Open Access  
Entre Ciencia e Ingeniería     Open Access   (Followers: 1)
Epiphany     Open Access   (Followers: 4)
Episteme Transversalis     Open Access  
Ergo     Open Access  
Estação Científica (UNIFAP)     Open Access   (Followers: 1)
Ethiopian Journal of Education and Sciences     Open Access   (Followers: 6)
Ethiopian Journal of Science and Technology     Open Access  
Ethiopian Journal of Sciences and Sustainable Development     Open Access   (Followers: 7)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 13)
European Scientific Journal     Open Access   (Followers: 9)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 2)
Extensionismo, Innovación y Transferencia Tecnológica     Open Access   (Followers: 5)
Facets     Open Access  
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access   (Followers: 1)
Fırat Üniversitesi Fen Bilimleri Dergisi     Open Access  
Fırat University Turkish Journal of Science & Technology     Open Access  
Fontanus     Open Access  
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 378)
Frontiers for Young Minds     Open Access  
Frontiers in Climate     Open Access   (Followers: 2)
Frontiers in Science     Open Access   (Followers: 1)
Futures & Foresight Science     Hybrid Journal   (Followers: 4)
Gaudium Sciendi     Open Access   (Followers: 1)
Gazi University Journal of Science     Open Access  
Gaziosmanpaşa Bilimsel Araştırma Dergisi     Open Access  
Ghana Studies     Full-text available via subscription   (Followers: 15)
Global Journal of Pure and Applied Sciences     Full-text available via subscription  
Global Journal of Science Frontier Research     Open Access   (Followers: 2)
Globe, The     Full-text available via subscription   (Followers: 4)
HardwareX     Open Access  
Heidelberger Jahrbücher Online     Open Access  
Heliyon     Open Access  
Himalayan Journal of Science and Technology     Open Access   (Followers: 1)
Hoosier Science Teacher     Open Access  
Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / Journal of the Institute of Science and Technology     Open Access  
Impact     Open Access   (Followers: 2)
Indonesian Journal of Fundamental Sciences     Open Access  
Indonesian Journal of Science and Mathematics Education     Open Access   (Followers: 3)
Indonesian Journal of Science and Technology     Open Access  
Ingenieria y Ciencia     Open Access   (Followers: 1)
Innovare : Revista de ciencia y tecnología     Open Access  
Instruments     Open Access  
Integrated Research Advances     Open Access  
Interciencia     Open Access   (Followers: 1)
Interface Focus     Full-text available via subscription  
International Annals of Science     Open Access  
International Archives of Science and Technology     Open Access  
International Journal of Academic Research in Business, Arts & Science     Open Access   (Followers: 2)
International Journal of Advanced Multidisciplinary Research and Review     Open Access  
International Journal of Advancement in Education and Social Sciences     Open Access   (Followers: 1)
International Journal of Advances in Engineering, Science and Technology     Open Access   (Followers: 3)
International Journal of Applied Science     Open Access  
International Journal of Basic and Applied Sciences     Open Access   (Followers: 4)
International Journal of Computational and Experimental Science and Engineering (IJCESEN)     Open Access  
International Journal of Engineering, Science and Technology     Open Access  
International Journal of Engineering, Technology and Natural Sciences     Open Access  
International Journal of Innovation and Applied Studies     Open Access   (Followers: 12)
International Journal of Innovative Research and Scientific Studies     Open Access   (Followers: 5)
International Journal of Innovative Research in Social and Natural Sciences     Open Access   (Followers: 1)
International Journal of Network Science     Hybrid Journal   (Followers: 3)
International Journal of Recent Contributions from Engineering, Science & IT     Open Access   (Followers: 1)
International Journal of Research in Science     Open Access   (Followers: 2)
International Journal of Science & Emerging Technologies     Open Access   (Followers: 1)
International Journal of Sciences : Basic and Applied Research     Open Access  
International Journal of Social Sciences and Management     Open Access   (Followers: 2)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 7)
International Letters of Social and Humanistic Sciences     Open Access   (Followers: 1)
International Review of Applied Sciences     Open Access  
International Scientific and Vocational Studies Journal     Open Access   (Followers: 1)
InterSciencePlace     Open Access   (Followers: 1)
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Investigación Valdizana     Open Access  
Investigacion y Ciencia     Open Access   (Followers: 1)
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
iScience     Open Access  
Issues in Science & Technology     Free   (Followers: 7)
İstanbul Ticaret Üniversitesi Fen Bilimleri Dergisi / İstanbul Commerce University Journal of Science     Open Access  
Istituto Lombardo - Accademia di Scienze e Lettere - Rendiconti di Scienze     Open Access  
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription   (Followers: 2)
Journal for New Generation Sciences     Open Access   (Followers: 4)
Journal of Chromatography & Separation Techniques     Open Access   (Followers: 12)
Journal of Advanced Research     Open Access   (Followers: 3)
Journal of Al-Qadisiyah for Pure Science     Open Access   (Followers: 1)
Journal of Analytical Science & Technology     Open Access   (Followers: 6)
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences and Environmental Management     Open Access   (Followers: 3)
Journal of Big History     Open Access   (Followers: 3)
Journal of Composites Science     Open Access   (Followers: 3)
Journal of Critical Thought and Praxis     Open Access   (Followers: 2)
Journal of Deliberative Mechanisms in Science     Open Access  
Journal of Diversity Management     Open Access   (Followers: 4)

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Journal Cover
Anadol University Journal of Science and Technology B : Theoritical Sciences
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2146-0272 - ISSN (Online) 2146-0191
Published by Eskişehir Teknik Üniversitesi Homepage  [1 journal]
  • (HCl)2(CH3OH)2(X) (X= NH3 VEYA H2O) KÜMELERİNDE PROTON DİNAMİĞİNİN
           TEORİK OLARAK İNCELENMESİ

    • Authors: Fatime Mine BALCI
      Abstract: Proton transferin H-bonded molecular systems plays a vital role in many research areas such asbiological, technological and atmospherical. The aim of this study is toinvestigate the dynamics of proton transfer along the methanol wires byaddition of NH3 or H2O to the methanol ring at lowtemperatures. On-the-fly molecular dynamics as implemented in the densityfunctional code QUICKSTEP which is part of CP2K package were used in thisstudy. In NH3 containing methanol clusters, the proton is localizedon NH3. On the other hand, the proton is delocalized along themethanol wires containing water molecule.
      PubDate: Mon, 30 Apr 2018 00:00:00 +030
       
  • The investigation of the effects of debinding time and dimensions of
           sample on parts produced from tungsten carbide by powder injection molding
           

    • Authors: Kamran Samet; Oğuz Yılmaz, Harun Koçak, Asghar Safarian, Çetin Karataş
      Abstract: Powderinjection molding (PIM)  is a method thatis emerged from the combination of conventional powder metallurgy technique andplastic injection molding. This method, comprises four basic steps including ofpreparation of the feedstock, injecting into the mold,the binder removalprocess and sintering. The binder removal process in PIM effects the ultimatestrength achieved in part after sintering. Also if the debinding time is selectedas higher than optimum level, production cost will increase, obviously. Therefore,determination of loss of mass that occurs during binder removal process issignificant. In this study, tungsten carbide (WC) samples with three differentdiameters (4,3; 9,75 ve 12 mm)  and threedifferent lengths (15, 14, ve 11 mm)  were produced by PIM method. Then thesesamples were subjected to chemical debinding process at four different time,24, 48,  60 and 72 hours, respectively.Ethanol was used as solvent in the chemical binder removal process, As a resultof experiments, the effects of sample thickness, volume, surface area/volumeratio (Ay / V) and debinding time on weight loss were specified byusing PIM. According to the this study, as the surface area/volume ratio (Ay/ V) is increased the weight loss will increased, while the  thickness and volume are increased, weightloss will decreased for the green part of the feedstock. 60 hours is determinedas optimum binder removal parameters for the case of 60°C in ethanol.
      PubDate: Mon, 30 Apr 2018 00:00:00 +030
       
  • THE DOUBLY-TRUNCATED EXPONENTIATED INVERSE WEIBULL DISTRIBUTION

    • Authors: Demet AYDIN
      Abstract: In this study, we introduce the five-parameterdoubly-truncated exponentiated inverse Weibull distribution, where thetruncation points are known, and consider its basic properties. Formulas formoment generating function, characteristic function, mean, variance andkurtosis of the distribution are derived. Estimates of parameters are obtainedusing traditional estimation methods; maximum likelihood, least squares andweighted least squares. Furthermore, in order to give a lower bound for thestandard errors of estimates of parameters, a Fisher information matrix is provided.Finally, a Monte-Carlo simulation study is designed and conducted to evaluatethe performances of obtained estimators of parameters.
      PubDate: Mon, 30 Apr 2018 00:00:00 +030
       
  • AN EVALUATION OF CARBON NANOTUBE (CNT) PRODUCTION FROM PLASTIC WASTES

    • Authors: Aysun Özkan; Ece Yapıcı, Zerrin Günkaya, Müfide Banar
      Abstract: Plastics are heavily used in every field of dailylife and industrial production. Most of the plastics used to meet therequirements are converted to waste in a short time, so the amount of plasticwaste is considerably high. Alternative methods of converting these waste intoproduct should be investigated and applied in order to reduce the environmentaland health hazards of some recycled, burned or stored plastics in the currentsituation. From this point of view, this study deals with the use of plasticwaste in the production of carbon nanotube (CNT), a valuable material. Presentdata and application areas related to plastic wastes were evaluated, briefinformation about CNT production was given and the use of plastic types ascarbon source in this process was examined.
      PubDate: Mon, 30 Apr 2018 00:00:00 +030
       
  • MESHLESS METHOD BASED ON RADIAL BASIS FUNCTIONS FOR GENERAL ROSENAU
           KdV-RLW EQUATION

    • Authors: Bahar KARAMAN; Yılmaz DERELİ
      Abstract: Inthe present study, the meshless method based on radial basis functions isapplied for finding the numerical solution of the general Rosenau KdV-RLWequation. Firstly, Crank-Nicolson and forward finite difference methods areused for discretization of the unknown function  and its time derivative,respectively. A linearization technique is applied for the approximate solutionof the equation. Secondly, we calculate the numerical values of invariants ofthe motions to examine the fundamental conservative properties of the equation.Also, the error norms are computed to determine the accuracy of the proposedmethod. Linear stability analysis is tested to determine whether the presentmethod is stable or unstable. The scheme gives unconditionally stable. At theend of this paper, obtained results indicate the accuracy and applicability ofthis method.
      PubDate: Mon, 30 Apr 2018 00:00:00 +030
       
  • Seasonal Determination and Investigation of Disinfection by Product
           Formation Potentials (DBPFPs) of Surface Waters, İstanbul Ömerli and
           Büyükçekmece Case Study

    • Authors: Edip AVŞAR; İsmail TORÖZ
      Abstract: Allsurface and ground waters include natural organic matter (NOM). During thedisinfection NOM reacts with chlorine and forms various types of halogenateddisinfection by-products (DBPs). There are lots of study in the literatureabout these possible carcinogenic effects on human. Trihalomethanes (THMs) andhaloacetic acids (HAAs) are the most widely known and most produced DBPs. Butthere lots of different types of DBPs occurred after the disinfection andsometimes absorbable organic halogens (AOX) measurement can be used fordetermining the total amount of DBPs. In this study raw water samples weretaken from Büyükçekmece (BC) and Ömerli (OM) surface water sources in theseasonal basis. At the first stage water quality parameters were analysed andthen samples were chlorinated. After 7 days reaction period THMs, HAAs,haloasetonitrilles (HANs), chloral hydrate (CH), chloropicrin (CP) and AOXmeasurements were conducted and according to these results undefined DBPspercentage of AOX was calculated. In terms of OM and BC raw water undefinedportion of AOX was averagely calculated as 59.4% and 58% respectively.
      PubDate: Mon, 30 Apr 2018 00:00:00 +030
       
  • SANAYİDE TEMİZ ÜRETİM VE DÖNGÜSEL EKONOMİYE GEÇİŞTE
           ENDÜSTRİYEL SİMBİYOZ YAKLAŞIMI: BİR DEĞERLENDİRME

    • Authors: Aysun Özkan; Zerrin Günkaya, Alp Özdemir, Müfide Banar
      Abstract: Günümüzde sanayi dünyası, tekil endüstri mantığındanuzaklaşarak birbiriyle daha çok iletişim halinde olan çoğul endüstriyaklaşımına doğru hızla ilerlemektedir. Bu durum, işletmeler arasındakietkileşimin sadece hammadde veya ürün kullanımından ibaret olmadığını, aynızamanda yan ürün ve diğer birçok atık çeşidinin de birer hammadde olabileceğinigöstermektedir.  Son yıllarda, hızlıendüstrileşme ile birlikte meydana gelen bu yönelim, öncelikle boru sonuyaklaşımın terkedilmesi ve kirlilik önleme mantığının geliştirilmesiadımlarıyla güçlendirilmiştir. Bu çalışmada, temiz üretim anlayışının sonzamanlarda artan bir gelişim gösteren araçlarından birisi olan endüstriyel simbiyozyaklaşımı irdelenmiş ve bu yaklaşımın temel prensipleri üzerinde durulmuş, Dünyave Türkiye’deki endüstrilerde gerçekleştirilmiş uygulamalar hakkında birdeğerlendirme yapılmıştır. 
      PubDate: Mon, 30 Apr 2018 00:00:00 +030
       
  • ON THE LAPLACIAN EIGENVALUES OF THE KITE GRAPH

    • Authors: Sezer SORGUN; Hatice TOPCU
      Abstract: The kite graph is denoted by Kiten,n-pwhich is obtained by appending a complete graph Kp to a pendantvertex of the path graph Pn-p . In this paper, we present somespectral properties of Laplacian matrix of the kite graph. First we give theLaplacian characteristic polynomial of Kiten,n-p , then we restrictits largest Laplacian eigenvalue depending on the clique number. Also we saythat any connected graph which has the same clique number with Kiten,n-pis isomorphic to the Kiten,n-p under some conditions.
      PubDate: Mon, 30 Apr 2018 00:00:00 +030
       
  • THEORETICAL INVESTIGATION OF HALF-VALUE THICKNESS OF MORTARS PRODUCED BY
           DIFFERENT TYPES

    • Authors: Abdullah Engin ÇALIK; Hüseyin ŞİRİN
      Abstract: In this study, inconsistency between experimental and theoreticalhalf-value thickness for the absoption of gamma rays in concrete materials withdifferent chemical properties has been removed with the help of fractionalcalculus. The first order differential equation related to the absorption hasbeen re-defined by using Caputo fractional derivative. The solution of this equationhas been obtained in terms of Mittag-Leffler function. The fractionalcalculations have been done using experimental and theoretical attenuationcoefficients data obtained from gamma ray sources 241Am  and 137Cs  with59.9 keV and 661 keV, respectively. The obtained results have beeen comparedwith the experimental and standard ones. How the calculated fractionalderivative orders affect the intensity of the gamma ray as it passes throughthe absorbent material has been attempted to determine.
      PubDate: Sat, 21 Apr 2018 00:00:00 +030
       
 
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