Abstract Ethiopia's government proposes paving existing roads or building modern intersections in cities to reduce maintenance costs. An unimproved signalized intersection at 6° 51′ 47.9″ N and 37° 45′ 50.1″ E is selected for this research. Cost-benefit analysis used evaluate the proposed innovative approach designing implementing an compare whether new road projects will have adequate return. ...

This paper provides an economic appraisal of blockchain technology's impact on the two representative pillars system: finance and market competition. It is argued that although cryptocurrencies designed upon technology are perceived as alternative currencies speculative financial assets today, their roles limited in sense. However, can promote competition internet sector by virtue decentralizat...

There are a wide range of modern waste disposal systems and the costs of operating them greatly vary. The type of waste disposal system to be used is selected based on the nature of the operation, process and needs of the local community. In Iran, mixed municipal waste with significant contamination and humidity is prevalent. As a result, the most commonly used methods implemented in European a...

In China's industrialization process, the effective regulation of energy and environment can promote the positive externality of energy consumption while reducing negative externality, which is an important means for realizing the sustainable development of an economic society. The study puts forward an improved technique for order preference by similarity to an ideal solution based on entropy ...

introduction: appraiser is the main interface between the performance appraisal system and those being appraised. their views and behaviors have different effects on the performance of the evaluation system, as well as the reactions subjects of the appraisal make toward the system and their subsequent performance. hence, appraisers need to be trained enough regarding the appraisal. therefore, t...