Introduction: Cranes are of the major causes of accidents in the construction industries. As human error mostly causes crane accidents, this study aims to investigate the human errors of tower crane operators in the construction projects using SHERPA and CREAM techniques. Material and Method: In this research, first, all of the tasks of the tower crane operator were identified and analyzed. Th...

abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...

The aim of this study was to provide a new model for identifying the sources and sources of waste gas in Mahdishahr city gas department and to define corrective measures and prioritize measures to help managers to make appropriate decisions to reduce waste gas. The research method is descriptive-analytical in terms of nature and is applied in terms of purpose. The statistical sample of the rese...

learning a second or foreign language requires the manipulation of four main skills, namely, listening, reading, speaking, and writing which lead to effective communication. it is obvious that vocabulary is an indispensible part of any communication, so without a vocabulary, no meaningful communication can take place and meaningful communication relies heavily on vocabulary. one fundamental fac...

Introduction: Even before the Covid 19 pandemic, one of the lucrative targets for attackers behind ransomware attacks was Encroaching on the continuity of services in the field of health information technology. In this study, for the first time, while introducing, relying on statistics and modeling, it is shown that the prevention and counteraction of these attacks in the IT infrastructure of t...