financial statement of a company is a reflection of the operational and financial position of a company. the comparative analysis of two companies similar in nature, size, work, location and objectives etc., facilitates an understanding of the operational and financial soundness of the companies. the kingdom of saudi arabia is aiming for rapid industrialization in its economy. sahara petrochemi...

Airflow hazards such as vortices or low level wind shear have been identified as a primary contributing factor in many helicopter accidents. US Navy ships generate airwakes over their decks, creating potentially hazardous conditions for shipboard rotorcraft launch and recovery. Recent sensor developments may enable the delivery of airwake data to the cockpit, where visualizing the hazard data m...

To ensure the production/output and customer satisfaction in mining sector the estimation of Remaining Useful Life of mining machineries is a prime. In this paper we used the reliability analysis in order to estimate an optimal mining equipment repair/replacement policy by estimating their remaining useful life. The proportional hazard model was used in reliability analysis to be realistic and ...

We are witnessing evolution of standards (as the functional safety one) and increasing of complexity. This implies to perform safety studies efficiently and earlier in the context of Model-Based System Engineering. So, in this article, we will propose an evolution of the Preliminary Hazard Analysis (PHA) method in order to comply with the overall safety requirements in the automotive domain. To...

tires represent a critical spare part in mines. there is a shortage of medium and large tires. in addition, with increased mining activities and the creation of new mines, the demand for tires has increased significantly. thus, it is particularly important for mining engineers to identify tire characteristics and correctly manage the spare part inventory. spare parts management is critical from...

W. SCHROEDER*{, M. RUMINSKI{, I. CSISZAR{, L. GIGLIO{§, E. PRINS", C. SCHMIDT" and J. MORISETTE|| {Department of Geography, 2181 Le Frak Hall, University of Maryland, College Park, MD 20742, USA {NOAA/NESDIS, 5200 Auth Rd Rm 401, Camp Springs, MD 20746, USA §Science Systems and Applications, Inc., Lanham, MD 20706, USA "Space Science and Engineering Center, CIMSS/University of Wisconsin, 1225 W...

background: health hazards associated with exposure due to the natural radioactivity which is a part of our physical environment are of great concern. in order to assess the risks associated with exposure due to the natural radioactivity in soil and building materials, extensive studies have been carried out all over the world. the most commonly encountered radionuclide’s are 238u, 232th, their...

introduction this study examines the level of farmers' perception of hazards, as well as their impacts on efficiency and mentally quality of farmers' life and profession. the relationship between each dimension of quality of work life and efficiency is studied too.   methodology the research method is descriptive and includes a survey of many selected villages in yazd province (farmer...

The Standardized Precipitation Index (SPI) is a widely used drought index to provide good estimations of the intensity, magnitude and spatial extent of droughts. The objective of this study was to analyze the spatial pattern of drought by SPI index. In this paper, patterns of drought hazard in Khuzestan are evaluated according to the data of 17 weather stations during data recording. The influe...