rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...

Introduction: Considering the importance of implementing occupational safety and health management systems for the prevention of various diseases in the workplace, as well as determining the notability and role of induction and implementation of occupational health management systems in controlling and reducing COVID-19 outbreak in work environments, as one of the most sensitive and important o...

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

in this thesis, ‎‎using‎‎ ‎concept‎s‎ ‎of‎ ‎wavelet‎s‎ ‎theory ‎‎‎som‎e‎ ‎methods‎‎ ‎of‎ ‎th‎e ‎solving‎‎ ‎optimal‎‎ ‎‎con‎tr‎ol‎ problems ‎(ocps)‎‎. ‎g‎overned by time-delay systems is investigated. ‎th‎is‎ thesis contains ‎tw‎o parts. ‎‎first, the method of obtaining ‎o‎f ‎the‎ ‎‎ocps‎ in time delay systems by linear legendre multiwavelets is ‎ ‎presented‎.‎‎‎‎ the main advantage of the meth...

    The aim of this study is to investigate and identify the barriers and problems related to establishing management information systems (MIS) from administrators’ point of view. on this basis, attempt has been made to propose suitable solutions to these barriers by identifying them in different stages of establishing these systems in Sarcheshmeh Copper Complex in Rafsanjan. These barriers are...

 Introduction: Inclusive, sufficient, precise and up to date information is necessary for planning in a health information system. Health Population Information Management System (HPIMS) is a system that collects, stores, retrieves, analyzes, interprets, and distributes health population information for prevention and treatment. The aim of this study was first to compare Health Population Infor...

Introduction: Health care systems, especially nurses are identified as professional organization services and require the use of efficient ways to deliver services because of relationship with health community. It is possible only using new information management techniques and allocation of appropriate time for knowledge management. The aim of this study was to review the concept of knowledge ...