Abstract— The study was undertaken to assess the status of water quality in the urban areas of Gharian district, northwestrn Libya. All the samples were analyzed for four physicochemical parameters such as total hardness, pH, nitrate and sulfate and twelve heavy metals, Al, Ba, Se, Hg, Cd, Cu, Cr, Fe, Mn, Ni, Pb, and Zn using standard procedures. The analysis indicated that concentrations of the metal were mostly far below the maximum allawable concentration. However, the concentration of Ni in some of the water samples were relatively high when compared to the Libyan and International standards values. Relatively high concentrations of Se had been detected in all samples. The results showed that other parameters differ form each sample. Total hardness, nitrate and sulfate concentration of all samples were higher than the International standards. The pH of all analyzed samples was within the allowable limit. 

Keywords— Groundwater, wells, Heavy metals, Gharian.

This paper demonstrates a new approach in solving problems with capacity issues within a cement factory in Libya using the Witness simulation package that enables the development of discrete and continuous simulation model to simulate these processes. The model aims to support the implementation of management systems in Supply Chain Management and the introduction of Just-In-Time systems. In order to carry out the above, research has been carried out into processes of SCM and J.I.T. The developed Simulation model is based on Libyan Cement industry, exploring supply chain management (SCM) and Just IN Time (JIT) system from start to end of the processes. Therefore, the aim and objective of investigating supply chain management and applying JIT to the cement factory using simulation at the very stage has been successful and has exercised with the simulation scenarios 1,2 and 3. This was achievable simply based on many assumptions as addressed above and with the help of the witness software that executes duties with the aid of input and output rules that need to be applied accordingly.

This paper presents a designed algorithm involves improvement of transferring data over Simple Object Access Protocol (SOAP). The aim of this work is to establish whether using SOAP in  exchanging XML messages has any added advantages or not. The results showed that XML messages without SOAP take longer time and consume more memory, especially with binary data