•Journal•ISSN: 2331-1916
Cogent engineering
Cogent OA
About: Cogent engineering is an academic journal published by Cogent OA. The journal publishes majorly in the area(s): Materials science & Computer science. It has an ISSN identifier of 2331-1916. It is also open access. Over the lifetime, 1623 publications have been published receiving 15036 citations.
Topics: Materials science, Computer science, Renewable energy, Composite material, Ultimate tensile strength
Papers
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TL;DR: In this paper, the authors reviewed the opportunities associated with renewable energy sources which include: Energy Security, Energy Access, Social and Economic development, Climate Change Mitigation, and reduction of environmental and health impacts.
Abstract: The world is fast becoming a global village due to the increasing daily requirement of energy by all population across the world while the earth in its form cannot change. The need for energy and its related services to satisfy human social and economic development, welfare and health is increasing. Returning to renewables to help mitigate climate change is an excellent approach which needs to be sustainable in order to meet energy demand of future generations. The study reviewed the opportunities associated with renewable energy sources which includes: Energy Security, Energy Access, Social and Economic development, Climate Change Mitigation, and reduction of environmental and health impacts. Despite these opportunities, there are challenges that hinder the sustainability of renewable energy sources towards climate change mitigation. These challenges include Market failures, lack of information, access to raw materials for future renewable resource deployment, and our daily carbon footprint. The ...
1,545 citations
TL;DR: This paper presents the Pareto and scalarization method, which creates multi-objective functions made into a single solution using weights, and the solution is a performance indicators component that forms a scalar function which is incorporated in the fitness function.
Abstract: Several reviews have been made regarding the methods and application of multi-objective optimization (MOO). There are two methods of MOO that do not require complicated mathematical equations, so t...
375 citations
TL;DR: The current thrust for materials which are environmental friendly and biodegradable made from polymer matrix composites had become an important topic for academic and industrial research as discussed by the authors, and the current thrust was for materials that are environmentally friendly and bio-friendly made from polymeric materials.
Abstract: The study of polymer matrix composites had become an important topic for academic and industrial research. The current thrust for materials which are environmental friendly and biodegradable made r...
237 citations
TL;DR: In this article, the effect of nano-silica addition on mechanical, durability and microstructure characteristics of paste, mortar and concrete is summarized and the future trend/potential and implication of nano silica in cement-based materials is discussed.
Abstract: The research nowadays is mainly focusing on the basic science of cementitious material at nano/atomic level. Further, researchers are continuing to improve the durability and sustainability of concrete and have realized significant increment in mechanical properties of cementitious materials by incorporating nano-silica. The review paper summarizes the effect of nano-silica addition on mechanical, durability and microstructure characteristics of paste, mortar and concrete. It provides the current development of application of nano-silica in paste, mortar and concrete. Finally, the future trend/potential and implication of nano-silica in cement-based materials is discussed.
128 citations
TL;DR: This paper describes a light-weight dynamic network loading simulator that embeds Newell’s simplified kinematic wave model, and an integrated traffic assignment and origin–destination demand calibration system that can iteratively adjust path flow volume and distribution to match the observed traffic counts.
Abstract: A number of emerging dynamic traffic analysis applications, such as regional or statewide traffic assignment, require a theoretically rigorous and computationally efficient model to describe the propagation and dissipation of system congestion with bottleneck capacity constraints. An open-source light-weight dynamic traffic assignment (DTA) package, namely DTALite, has been developed to allow a rapid utilization of advanced dynamic traffic analysis capabilities. This paper describes its three major modeling components: (1) a light-weight dynamic network loading simulator that embeds Newell’s simplified kinematic wave model; (2) a mesoscopic agent-based DTA procedure to incorporate driver’s heterogeneity; and (3) an integrated traffic assignment and origin–destination demand calibration system that can iteratively adjust path flow volume and distribution to match the observed traffic counts. A number of real-world test cases are described to demonstrate the effectiveness and performance of the prop...
122 citations