Survey on Lagrangian relaxation for MILP: importance, challenges, historical review, recent advancements, and opportunities

Extra-terrestrial construction processes – Advancements, opportunities and challenges

Government space agencies, including NASA and ESA, are conducting preliminary studies on building alternative space-habitat systems for deep-space exploration. Such studies include development of advanced technologies for planetary surface exploration, including an in-depth understanding of the use of local resources. Currently, NASA plans to land humans on Mars in the 2030s. Similarly, other s...

Islam; Challenges and Opportunities

Undoubtedly Islamic Revolution of Iran has been the source of Islamic awakening in the middle-east. Therefore Islamic Republic of Iran plays the role of an example and a director of political developments in the region. Islamic awakening in Arab countries has been able to question the dominant discourse of dictators in the middle-east region and topple their regimes. These developments include ...

Challenges and Opportunities in Historical Data Analytics for Cyber Security

Historical analysis of data for cyber threat is the most traditional means for security protection. Advances in virtualization, hunting techniques, and virtualized managed security services will effectively address many of the challenges found in historical security analysis of data in the past few years. (Analyst Note: This paper was inspired by discussions about threat analysis of historical ...

Lagrangian Relaxation Method for the Step fixed-charge Transportation Problem

In this paper, a step fixed charge transportation problem is developed where the products are sent from the sources to the destinations in existence of both unit and step fixed-charges. The proposed model determines the amount of products in the existing routes with the aim of minimizing the total cost (sum of unit and step fixed-charges) to satisfy the demand of each customer. As the problem i...

Living in a Historical Neighborhood: Challenges, Opportunities and Threats, Case Study: Oudlajan Neighborhood in Tehran