Published on February 22, by Shona McCombes. Revised on March 9, A literature review is a survey of scholarly sources on a specific topic. It provides an overview of current knowledge, allowing you to identify relevant theories, methods , and gaps in the existing research. Writing a literature review involves finding relevant publications such as books and journal articles , critically analyzing them, and explaining what you found. There are five key steps:.
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To comprehensively understand the research progress of the fleet scheduling for hazardous materials, the study has summarized the corresponding research results from three aspects a hazardous materials transportation risk, b route optimization, and c fleet scheduling, and then pointed out potential problems from six aspects: a the coupling risk of the transport fleet; b the screening of time and space for the transport of hazardous materials; c the scheduling optimization for transport fleets; d taking insufficient account of transport risks fairness; e insufficient robustness of scheduling schemes; and f lacking of research results on fleet scheduling of transport in the context of antiterrorism. After that, by considering the existing shortcomings of the current research, five research directions are presented that should be further explored in the future. Subsequently, both rough set and association rule theory is applied to explore the cause chain of transportation accidents for hazardous materials, and analyze the mechanism of transport accident for hazardous materials. Next, the Bayesian network is presented to predict the accident rate of hazardous materials transportation under different temporal and spatial conditions, and the dynamic rolling scheduling method of hazardous materials transport fleet is constructed under normal and antiterrorism background. Hazardous materials are referred to those substances and articles with explosive, inflammable, toxic, infectious, corrosive, and other dangerous characteristics that are liable to cause human casualties, property damage, or environmental pollution in the course of production, management, transportation, storage, use, and disposal, which is required special protection.
Scientific Research An Academic Publisher. The demand on water supply is increasing over the last century due to improved lifestyle, industrial development and population growth. This increased demand is facing a paradox to produce treated water with high quality at lower cost. The optimization of water treatment plant is not a disciplinary to maximize the treatment objective and minimize the cost of the water produced.