To repair microcracks in cast-in-place concrete bridge decks and improve the quality of
bridge deck pavement, low-viscosity epoxy grouting material was prepared. The effects of …

Data envelopment analysis (DEA) is a mathematical approach based on linear
programming, which evaluates the rational efficiency of decision-making units (DMUs) with …

The purpose of the present study is to provide an approach to identify and investigate the
effects of each factor on the development of foodservices in cities. The factors influencing the …

The use of weight restrictions in data envelopment analysis (DEA) is considered an
appropriate method to avoid zero inputs and outputs weights. Due to a number of problems …

In this paper, we focus on a critical problem in data envelopment analysis (DEA) and
propose a simple resolution for it. The major problem of the DEA is the existence of several …

Data envelopment analysis is an effective method for assessing the relative sustainability of
ecosystems in megalopolises, which are characterized by a variety of environmental and …

Energy is the basis of people's life and the normal operation of economic activities, and
plays an important role in our daily life. However, with the rapid economic development …