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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 426 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
AAS Open Research     Open Access   (Followers: 1)
ABC Journal of Advanced Research     Open Access  
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 22)
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: 11)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 5)
Advances in Research     Open Access  
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)
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: 17)
American Scientist     Full-text available via subscription   (Followers: 13)
ANALES de la Universidad Central del Ecuador     Open Access   (Followers: 4)
Anales del Instituto de la Patagonia     Open Access  
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 1)
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: 7)
Archives of Current Research International     Open Access  
ARO. The Scientific Journal of Koya University     Open Access   (Followers: 1)
ARPHA Conference Abstracts     Open Access   (Followers: 5)
ARPHA Proceedings     Open Access   (Followers: 5)
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)
Avrasya Terim Dergisi     Open Access  
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  
BJHS Themes     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  
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: 3)
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: 2)
CienciaUAT     Open Access   (Followers: 1)
Citizen Science : Theory and Practice     Open Access   (Followers: 2)
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: 11)
COSMOS     Hybrid Journal   (Followers: 1)
Crea Ciencia Revista Científica     Open Access   (Followers: 2)
Cuadernos de Investigación UNED     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: 5)
Data Curation Profiles Directory     Open Access   (Followers: 5)
Dhaka University Journal of Science     Open Access  
Dharmakarya     Open Access  
Diálogos Interdisciplinares     Open Access  
Digithum     Open Access   (Followers: 2)
Discover Sustainability     Open Access   (Followers: 2)
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)
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: 5)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 12)
European Scientific Journal     Open Access   (Followers: 12)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 2)
Experimental Results     Open Access   (Followers: 1)
Extensionismo, Innovación y Transferencia Tecnológica     Open Access   (Followers: 3)
Facets     Open Access  
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access   (Followers: 1)
Fırat University Turkish Journal of Science & Technology     Open Access  
Fontanus     Open Access  
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 379)
Frontiers for Young Minds     Open Access  
Frontiers in Climate     Open Access   (Followers: 3)
Frontiers in Science     Open Access   (Followers: 1)
Fundamental Research     Open Access   (Followers: 3)
Futures & Foresight Science     Hybrid Journal   (Followers: 4)
Gaudium Sciendi     Open Access   (Followers: 1)
Gazi University Journal of Science     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)
History of Science and Technology     Open Access   (Followers: 2)
Hoosier Science Teacher     Open Access  
Iberoamerican Journal of Science Measurement and Communication     Open Access  
Impact     Open Access   (Followers: 2)
Indian Journal of History of Science     Hybrid Journal   (Followers: 2)
Indonesian Journal of Fundamental Sciences     Open Access  
Indonesian Journal of Science and Mathematics Education     Open Access   (Followers: 4)
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 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 Culture and Modernity     Open Access   (Followers: 3)
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: 6)
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 Social Sciences and Management     Open Access   (Followers: 3)
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: 2)
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   (Followers: 2)
Issues in Science & Technology     Free   (Followers: 7)
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Jaunujų mokslininkų darbai     Open Access   (Followers: 1)
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription   (Followers: 2)
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 Alasmarya University     Open Access   (Followers: 3)
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: 6)
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Institute of Science and Technology     Open Access  
Journal of Integrated Science and Technology     Open Access  
Journal of Interaction Science     Open Access   (Followers: 1)
Journal of Kerbala University     Open Access   (Followers: 1)
Journal of King Saud University - Science     Open Access   (Followers: 1)
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Natural Sciences and Mathematics Research     Open Access  
Journal of Natural Sciences Research     Open Access   (Followers: 4)
Journal of Negative and No Positive Results     Open Access  
Journal of Responsible Technology     Open Access   (Followers: 1)
Journal of Science (JSc)     Open Access  
Journal of Science and Engineering     Open Access  

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Maghrebian Journal of Pure and Applied Science
Number of Followers: 0  
 
  Full-text available via subscription Subscription journal
ISSN (Print) 2458-715X
Published by IMIST Homepage  [61 journals]
  • Les méthodes de l’insémination artificielle des reines
           d’abeille

    • Free pre-print version: Loading...

      Authors: N. Adjlane, H. KOUAS
      Abstract: L'insémination artificielle  des reines d'abeilles (Apis mellifera) est devenue méthode de routine importante dans l'élevage des abeilles. La technique a été utilisée pour la première fois en 1947. Depuis plusieurs années, l'insémination instrumentale est devenue accessible à grande échelle pour éleveurs de reines et d'abeilles dans le monde entier.L'avantage l’insémination artificielle  à des fins de reproduction est évidente. Sur l'accouplement naturel vols les reines d'abeilles s'accouplent avec plusieurs drones de génotype inconnu. Inséminé artificiellement les reines assurent des accouplements vraiment contrôlés. Par conséquent, le progrès génétique dans la sélection les programmes avec les abeilles peuvent être obtenus beaucoup plus rapidement qu'avec les accouplements naturels.L’article fait une revue succincte des travaux les plus marquants concernant les progrès récents de l’insémination artificielle instrumentale des reines d’Abeilles, ainsi qu’une description détaillée de la méthode de travail.
      PubDate: 2021-10-06
      DOI: 10.48383/IMIST.PRSM/mjpas-v7i2.27764
      Issue No: Vol. 7, No. 2 (2021)
       
  • Correction of the article about the Automatic Mechanical Injection System
           Modeling with the Related Efficiencies

    • Free pre-print version: Loading...

      Authors: A. Louiz
      Abstract: In many industrial fields, there is an ever growing market demand for highly profitable engines. This fact encouraged to produce very developed engine parts, namely sophisticated injection systems. Consequently, the electronically enhanced injection systems are becoming very widespread for their high efficiency and cause the mechanical automatic systems to be neglected without enough studies. However, the electronically commanded injection is difficult to maintain because of the risks of short-circuits, and it is also difficult and expensive to repair since its captors are in high pressure and temperature areas. This paper aims to introduce a mathematical study of the basic direct injection operation by proving formulas representing forces, velocities and the energy involved in the injection mechanical mechanism without any electronic or computational complications. This theoretical mathematical modeling is useful for the efficiency experimental studies in order to improve the manufacturing and maintenance of all direct injection systems.
      PubDate: 2021-06-28
      DOI: 10.48383/IMIST.PRSM/mjpas-v7i2.26190
      Issue No: Vol. 7, No. 2 (2021)
       
  • Modélisation de la dispersion des émissions atmosphériques
           industrielles dans la région d'Arzew

    • Free pre-print version: Loading...

      Authors: S. Naili, A. Morsli
      Abstract: L'audit environnemental est un processus qui évalue périodiquement la performance et la conformité des installations mis en place pour assurer la protection de l'environnement. Cette étude est menée dans le but d'évaluer l'impact de la dispersion des polluants atmosphériques tels que les NOx, PM10 et NH3 sur la qualité de l'air ambiant au niveau des sites industriels et des zones urbaines en 2017, 2018 et 2019, en utilisant le modèle ARIA IMPACT. Les résultats de la modélisation indiquent que le niveau de polluants étudiés en milieu urbains est bien supérieur à l'objectif de qualité de l'air ambiant conformément à la réglementation en vigueur, alors qu'en milieu industriel, l'air ambiant est considéré comme assez pollué en PM10 au niveau des sites industriels N°1 et N°2 et relativement pollué en NOx dans le site industriel N°1.
      PubDate: 2021-06-28
      DOI: 10.48383/IMIST.PRSM/mjpas-v7i2.26605
      Issue No: Vol. 7, No. 2 (2021)
       
  • Génération de trajectoire aléatoire d’une cible de
           tir mobile

    • Free pre-print version: Loading...

      Authors: M. SANGARE
      Abstract: Cette étude a pour objet la conception du système de direction d’un véhicule automatique  de type automobile à trajectoire aléatoire (périodes et angles de rotation aléatoires), imprévisible dans le temps et l’espace. Le besoin a été exprimé par les Forces Armées et de Sécurité du Mali pour la formation des tireurs sur des cibles mobiles à trajectoire imprévisible. Le changement de direction est assuré par un moteur « pas-a-pas » actionnant les deux roues avant. Ce moteur est contrôlé par une carte électronique ARDUINO programmée pour générer des codes aléatoires de changement de direction et de pente de déviation. L’ensemble sera en mouvement entre deux murs parallèles. Le mouvement est rendu encore plus aléatoire par le changement de trajectoire induit automatiquement par le contact aléatoire de l’engin avec les parois des murs.
      Dans cet article, nous montrons les résultats obtenus par simulation informatique sans tenir compte du terrain et de la carrosserie qui pourront faire l’objet de publications ultérieures
      PubDate: 2021-06-28
      DOI: 10.48383/IMIST.PRSM/mjpas-v7i2.26640
      Issue No: Vol. 7, No. 2 (2021)
       
  • Impact des émissions atmosphériques industrielles (CO2) sur la qualité
           de l'air ambiant dans la région d'Arzew, Algérie

    • Free pre-print version: Loading...

      Authors: S. Naili, A. Morsli
      Abstract: Les principaux objectifs étaient d'identifier la source et d'évaluer le niveau de pollution atmosphérique, conformément à la législation et aux normes nationales et internationales relatives à la qualité de l'air ambiant. Ce travail a porté sur l'impact des émissions de dioxyde de carbone (CO2) générées par les activités industrielles de raffinage du pétrole, de traitement du gaz naturel liquéfié et de pétrochimie, sur la qualité de l'air ambiant dans la région d'Arzew, Algérie en 2017. L'étude a révélé que la concentration annuelle moyenne de CO2 ne dépassait pas la valeur limite recommandée par la norme européenne EN 13779.  Cette étude a également démontré que les niveaux de teneur en CO2 dépendaient des taux d’émission industriels et des saisons météorologiques, atteignant leur maximum en été principalement à cause des conditions météorologiques relativement stables.
      PubDate: 2021-06-28
      DOI: 10.48383/IMIST.PRSM/mjpas-v7i2.26698
      Issue No: Vol. 7, No. 2 (2021)
       
  • Tribological Characterization of Lubricants Oil with Nano Concentrated
           Highly Ash Egyptian Petroleum Coke and Calcium Palmitate Part 1

    • Free pre-print version: Loading...

      Authors: A. Mohamed Omar
      Abstract: Abstract–The effects of calcium palmitate (CAP) alone and in conjunction with petroleum coke were studied after flotation processes on wear and corrosion of steel in base oil. The results of the investigation demonstrated that a synergism effective as anti-wear and inhibitor of corrosion between calcium palmitate and petroleum coke. The effects of calcium palmitate (CAP) alone and in conjunction with other minerals dispersed in petroleum coke were investigated. As the results reduce the corrosion rate of steel and it’s wearing. Photographic analysis of steel inhibited steel reveals that it is cleaner than blank steel. X-Ray photoelectron spectroscopy (XPS) analysis confirmed the adsorbed film and its composition. The results show that wear resistance increased by about 80% and anticorrosion performance increased by about 85%. These findings were explored in terms of the CAP's adsorption isotherm at solid-liquid interface. Also, the XPS confirm that the synergistic action of mixed CAP and petroleum coke with highly ash content after flotation processes
      PubDate: 2021-06-28
      DOI: 10.48383/IMIST.PRSM/mjpas-v7i2.26742
      Issue No: Vol. 7, No. 2 (2021)
       
 
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