in the current engineering practices, buildings are commonly designed for an effective lifetime of 50 years. this lifetime can increase the cost of buildings with short lifetimes and can reduce the safety level of buildings with large lifetimes. in this paper, a “service-life factor” has been defined. applying this factor into the nominal values of live, earthquake, wind, and snow loads, the ef...

Industries are one of the main sources of pollution in the world. Besides, the levels of energy resources consumption including water, electricity, and fossil fuel are very different among industries. On the other hand, Iranian government pays a large amount of energy subsidy to manufacturing units. Because of it, the government wants to know which of manufacturing industries are efficient, pro...

speakers of different languages have paid attention to the phonetics of their language since ancient times. muslim scientists have also taken into consideration the value of phonological studies and among them there are linguists who are not less important than any western ones like saussure, chomsky and jacobson. some of them are even counted more major than westerners; one of these muslim sch...

ABSTRACT A vibrant and commercially active center is often the result of interesting, diverse building styles and or built-forms, pedestrian density along with variety of quality public places where people feel comfortable, spending time and shopping items for domestic and commercial functions in cities like Addis Ababa. The scale and design of buildings, pedestrian density, and other phy...

modern business organizations have appreciated the significance of having competitive advantage through the delivery of continuous improvement towards the customers, and being knowledge-oriented. indisputably, knowledge management (km) plays a key role in the success of customer relationship management (crm). in this regard, customer knowledge management (ckm) is a newly developed concept that ...

today, the tourism industry is of a special significance; during the past 50 years , this industry has turned into one of the major actors in the field of international trade as well as providing significant resources for income in most of the developed and developing countries. any country defines an appropriate policy in order to attract foreign tourists. policy making in the field of tourism...

the antimicrobial effect of metal nanoparticles such as zinc oxide and silver nanoparticles has been taken into great consideration separately during recent years. the useful application of these nanoparticles in the areas of medicine, biotechnology, and professional prevention of microbes motivated us. the aim of this study was to evaluate antibacterial activity properties of silver doped zinc...

There have been some observed studies and developed applications (apps), with a concentration on Mobile Assisted Language Learning (MALL), and no consideration of communicative needs of the learners; besides, these studies focused on either the theoretical aspects or the utilization of the available apps in the market (Burston & Athanasiou, 2020). Hence, Vocabulary Guru (VG), a custom-made mobi...