Iris Publishers Civil Engineering Open Access Journals

 Abstract This article describes the process of design, analysis, and manufacture of a modular, adaptable, and lightweight folding Bamboo dome. The study developed a new form-finding method with rigid scissors to simulated complex geometric forms to show rigid-bar deformation and using more uniform bars. The structure is composed of six flat semi-arches that fold through the scissor-type system reducing the size of the dome to facilitate is transport. Bamboo bars with a circular section are used as a main material for the structural arches. This research has been contextualized in the development and the form-finding process of curved surfaces with articulated bars. Félix Escrig’s projects have been utilized as the main reference, in particular, his method based on the regular polyhedron’s geometry, which allows obtaining the largest number of similar pieces. For this case study, a new approach to the regular polygon method is applied in the design process. The new methodology allo...

  Abstract Hydropower is the most developed renewable energy technology. It has evolved over hundreds of years, with the highest growth in the Twentieth century. Some technologies are continuously improving, while others have been forgotten. Four emerging hydropower turbines developed in the past, but forgotten in the last century, are here presented: water wheels, Archimedes screws, Deriaz, and Girard turbines. Their revival is related to the new needs that hydropower must face. The Updraft free-exit-flow turbine, not yet a commercial product, is also described. Read More about this article:  https://irispublishers.com/ctcse/fulltext/the-revival-of-old-hydraulic-turbines-for-innovative-hydropower-generation-water-wheels.ID.000625.php Read More about Iris Publishers Google scholar Articles :  https://scholar.google.com/citations?view_op=view_citation&hl=en&user=LoZ6uCQAAAAJ&citation_for_view=LoZ6uCQAAAAJ:sSrBHYA8nusC

  Abstract After the first infection of the Novel Coronavirus Disease (COVID-19) pandemic in December 2019 in Wuhan city in China, it is spreading all over the world. Currently the pandemic cases are increasing globally and its impact on many industries including the construction is increasing. In the case of construction, projects of all types and sizes are at risk and industry participants must consider the impacts the pandemic that may have on projects. These days, the health warning so often heard is “wash your hands”. From the construction industry health perspective, the current warning for stakeholders is “read your contract” prior to proceeding to the next steps. This study assessed the possible impacts of COVID-19 on construction industry with two proposed scenarios namely; ‘Force Majeure’ and Changes in Law’. From the scenarios, remedies provided to the stakeholders in construction industry from the globally applicable contract forms including FIDIC, JCT or NEC provisions...

  Abstract Water is the fundamental importance for all living organisms on earth. Among the organic pollutants encountered in water, phenol and its derivatives are important to identify and quantify them. It is because of their detrimental effects on aquatic organisms as well as human being. The use of fast detection technique such as spectrophotometric technique, electrochemical methods, and biosensor have practical implication. Furthermore, the use of hybrid technology can be used to remove phenolic from wastewater etc. Read More about this article:  https://irispublishers.com/ctcse/fulltext/phenolic-compounds-contaminants-in-water-a-glance.ID.000593.php Read More about Iris Publishers Google scholar Articles :  https://scholar.google.com/citations?view_op=view_citation&hl=en&user=LoZ6uCQAAAAJ&citation_for_view=LoZ6uCQAAAAJ:f2IySw72cVMC

  Abstract In the real world, there are many problems in which it is desirable to optimize one or more objective functions at the same time. These are known as single and multi-objective optimization problems respectively and continuous research is being conducted in this field and nature inspired heuristic optimization methods (also called advanced optimization algorithms) are proving to be better than the classical deterministic methods and thus are widely used. These algorithms have been applied to many engineering optimization problems and proved effective for solving some specific kinds of problems. In this paper, a review of the most popular optimization algorithms used in different problems related to the civil engineering during the last two decades is presented. It is hoped that this work will be useful to researchers involved in optimization. Read More about this article: https://irispublishers.com/ctcse/fulltext/usage-of-optimization-techniques-in-civil-engineering-durin...