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Publisher: Science and Education Publishing   (Total: 72 journals)   [Sort by number of followers]

American J. of Applied Mathematics and Statistics     Open Access   (Followers: 5)
American J. of Applied Psychology     Open Access   (Followers: 21)
American J. of Biomedical Research     Open Access   (Followers: 4)
American J. of Cancer Prevention     Open Access   (Followers: 7)
American J. of Civil Engineering and Architecture     Open Access   (Followers: 24)
American J. of Clinical Medicine Research     Open Access   (Followers: 7)
American J. of Educational Research     Open Access   (Followers: 47)
American J. of Electrical and Electronic Engineering     Open Access   (Followers: 15)
American J. of Energy Research     Open Access   (Followers: 9)
American J. of Environmental Protection     Open Access   (Followers: 7)
American J. of Epidemiology and Infectious Disease     Open Access   (Followers: 5)
American J. of Food and Nutrition     Open Access   (Followers: 15)
American J. of Food Science and Technology     Open Access   (Followers: 7)
American J. of Infectious Diseases and Microbiology     Open Access   (Followers: 16)
American J. of Information Systems     Open Access   (Followers: 4)
American J. of Materials Engineering and Technology     Open Access   (Followers: 1)
American J. of Materials Science and Engineering     Open Access   (Followers: 1)
American J. of Mathematical Analysis     Open Access  
American J. of Mechanical Engineering     Open Access   (Followers: 6)
American J. of Medical and Biological Research     Open Access   (Followers: 5)
American J. of Medical Case Reports     Open Access   (Followers: 1)
American J. of Medical Sciences and Medicine     Open Access   (Followers: 1)
American J. of Medicine Studies     Open Access  
American J. of Microbiological Research     Open Access  
American J. of Modeling and Optimization     Open Access   (Followers: 2)
American J. of Nanomaterials     Open Access   (Followers: 1)
American J. of Numerical Analysis     Open Access   (Followers: 2)
American J. of Pharmacological Sciences     Open Access   (Followers: 1)
American J. of Public Health Research     Open Access   (Followers: 23)
American J. of Rural Development     Open Access   (Followers: 3)
American J. of Sensor Technology     Open Access   (Followers: 2)
American J. of Sports Science and Medicine     Open Access   (Followers: 15)
American J. of Water Resources     Open Access   (Followers: 1)
American J. of Zoological Research     Open Access  
Applied Ecology and Environmental Sciences     Open Access   (Followers: 16)
Automatic Control and Information Sciences     Open Access  
Biomedical Science and Engineering     Open Access   (Followers: 2)
Chemical Engineering and Science     Open Access   (Followers: 3)
Intl. J. of Celiac Disease     Open Access   (Followers: 2)
Intl. J. of Dental Sciences and Research     Open Access   (Followers: 1)
Intl. J. of Econometrics and Financial Management     Open Access   (Followers: 2)
Intl. J. of Physics     Open Access  
Intl. Transaction of Electrical and Computer Engineers System     Open Access  
J. of Automation and Control     Open Access   (Followers: 2)
J. of Biomedical Engineering and Technology     Open Access   (Followers: 1)
J. of Business and Management Sciences     Open Access   (Followers: 1)
J. of Cancer Research and Treatment     Open Access   (Followers: 3)
J. of Computer Networks     Open Access  
J. of Computer Sciences and Applications     Open Access  
J. of Environment Pollution and Human Health     Open Access   (Followers: 3)
J. of Finance and Accounting     Open Access   (Followers: 1)
J. of Finance and Economics     Open Access   (Followers: 8)
J. of Food and Nutrition Research     Open Access   (Followers: 3, SJR: 0.344, h-index: 11)
J. of Food Security     Open Access  
J. of Geosciences and Geomatics     Open Access  
J. of Materials Physics and Chemistry     Open Access   (Followers: 1)
J. of Mathematical Sciences and Applications     Open Access   (Followers: 1)
J. of Optoelectronics Engineering     Open Access  
J. of Polymer and Biopolymer Physics Chemistry     Open Access   (Followers: 3)
Materials Science and Metallurgy Engineering     Open Access   (Followers: 3)
Nanoscience and Nanotechnology Research     Open Access   (Followers: 3)
Physics and Materials Chemistry     Open Access   (Followers: 1)
Research in Plant Sciences     Open Access  
Research in Psychology and Behavioral Sciences     Open Access   (Followers: 2)
Sustainable Energy     Open Access  
Turkish J. of Analysis and Number Theory     Open Access   (Followers: 1)
Wireless and Mobile Technologies     Open Access  
World J. of Agricultural Research     Open Access   (Followers: 1)
World J. of Analytical Chemistry     Open Access  
World J. of Chemical Education     Open Access  
World J. of Environmental Engineering     Open Access   (Followers: 1)
World J. of Organic Chemistry     Open Access   (Followers: 1)
Journal Cover American Journal of Civil Engineering and Architecture
  [24 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2328-398X - ISSN (Online) 2328-3998
   Published by Science and Education Publishing Homepage  [72 journals]
  • Effect of Aggregate Content on the Concrete Compressive Strength -
           Ultrasonic Pulse Velocity Relationship

    • Pages: 1 - 5
      Abstract: This paper investigates the relationship between the ultrasonic pulse velocity (UPV) and the compressive strength of concrete. The specimens used in the study were made of concrete with varied aggregate contents from 1000 to 1400 kg/m3. The specimens were made and tested at the Hawler Construction Laboratories (HCLabs) in Erbil, Kurdistan Region of Iraq. The UPV measurement and compressive strength tests were carried out at the concrete age of 28 days. The experimental results show that the relationship between UPV and the compressive strength of concrete is significantly influenced by the coarse aggregate content. Relationships are established for the range of contents of coarse aggregates and discussed.
      PubDate: 2016-1-4
      Issue No: Vol. 4, No. 1 (2016)
       
  • Application of ZLD Automaticly Continuous Launching System in the
           Construction of Prestressed Concrete Composite Box-girder Bridge with
           Corrugated Steel Webs

    • Authors: Dou Yong-zhi; Sun Chang-jun, Wei Fu-tang
      Pages: 6 - 11
      Abstract: The incremental launching construction method firstly is applied to the prestressed concrete composite girder bridge with corrugated steel webs and the bridge belongs to Zhengzhou Longhai Road Fast Track Project at Chang-zhuang reservoir in domestic. Under this background, ZLD automaticly continuous launching system is applied to the prestressed concrete composite girder bridge with corrugated steel webs and the construction scheme design, related construction technology and key points is introduced. Engineering practice shows that the advantage is synchronous control, automation, flexible construction, the force of incremental launching can be adjusted according to level of reaction force and deformation at the pier top. The construction efficiency, safety and reliability is improved for launching engineering, and it has a wide application prospect.
      PubDate: 2016-1-4
      Issue No: Vol. 4, No. 1 (2016)
       
  • Profitability Optimization of Construction Project Using Genetic Algorithm
           Cash Flow Model

    • Authors: I.M. Basha; A.H. Ibrahim, A.N. Abd El-Azim
      Pages: 12 - 22
      Abstract: Cash issues are various and complicated. The contractor starts with a forecast for the flow of the cash through the lifetime of the project. Cash shortages can lead to project failure and business bankruptcy. Researchers have studied cash flow in the context of project delay, business failure, and forecasting. However, negative cash flow trends and patterns themselves are not closely examined despite the amount, duration and distribution of negative cash flow are critical factors in construction performance. This study investigates cash flow management and profit optimization by reducing the extent and amount of negative cash flow on the construction projects and completes the project as scheduled by rescheduling construction activities based on the minimum cash flow availability. The study utilizes genetic algorithm’s technique to devise finance-based schedules that minimize project negative cash flow and profit optimization by identifying the amount and timing of individual inflow or outflow at the end of each period. The study also presents a case study project to illustrate the capability of the proposed model and adopts various constraints, including project profit and due dates, for scenario analysis. The analysis result demonstrates that minimizing negative flow ensures smooth financial pressure by properly shifting activities, and assigning due dates for projects helps planners avoid project duration extension while maximizing overall project profit.
      PubDate: 2016-1-11
      Issue No: Vol. 4, No. 1 (2016)
       
  • Comparative Elemental Analysis of Rice Husk Ash Calcined at Different
           Temperatures Using X-ray Flourescence (XRF) Technique

    • Authors: Taku J. K; Amartey Y. D, Kassar T
      Pages: 23 - 26
      Abstract: In this study, the effect of the calcination temperature of rice husk on the pozzolanic properties of the resulting rice husk ash (RHA) especially its silica content was investigated. Rice husk was collected from a rice milling plant and washed to remove sand and other impurities, beneficiated using the water beneficiation method and calcined at temperatures of 400, 500, 600, 700and 800°C, respectively for three hours. Samples were taken for XRF analysis, setting time determination and specific gravity test. The result of XRF analysis revealed that RHA calcined at temperatures between 400°C and 800°C contains more than 70% silica as stipulated by ASTM C618 for pozzolanas. The silica content though varies slightly with different calcination temperature of the rice husk ash. Also, calcination removed impurities present in the rice husk. Besides that, the specific gravity of RHA decreases with increasing calcination temperature from 2.00 at 400°C to 1.05 at 800°C. Setting times of RHA mortars at 15% replacement of OPC with RHA shows no definite pattern with increasing temperature. However, the initial and final setting times of OPC-RHA mortars at all calcination temperatures were higher than that of OPC mortar. As a whole, calcination improves the silica content of rice husk ash for use as a pozzolana as well as removes mineral impurities that may affect the pozzolanic properties of the rice husk ash.
      PubDate: 2016-1-15
      Issue No: Vol. 4, No. 1 (2016)
       
 
 
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