This study included extraction and estimation of oleuropein concentration in different types of olive leaves. It is the most important medicinal plants which is widely distributed in Libya and used in folklore medicine. The effect of different parameters (solvent, temperature, pH, extraction method and time) during and after extraction was studied. The obtained results showed that Chemlel and Corantina olive leaves have the highest oleuropein amount. In addition, the ideal conditions for...
Biosynthesis techniques have a number of advantages over other methods for producing silver nanoparticles (AgNPs), which provide a wide range of applications. The present work highlights the biosynthesis of AgNPs by mixing pear leaf aqueous extract with silver nitrate, and the formation of AgNPs was observed by the change of mixture color from yellow to dark brown and visible spectrophotometry. Moreover, the effect of pH, reaction time, AgNO3 concentration, extract volume and temperature on...
Aldukali Salem I. Almselati, Tarek Muftah Gnefeda, Nagi Salem Ali Tueger (Author)
10-19
The objective of the present empirical study was to test “bridging assumptions,” that’s, to see how closely the analysis of the objective macro-structural conditions determining the travel mode choice comply with the situation as perceived by the M respondents. The adopted methodology is based on a contingent valuation (CV) survey. Stated Preference (SP) surveys, also called self-stated preferences for research or services, have been widely applied in the areas of marketing and travel demand...
Ahmed M. A. Elmishri, Mohamed M. B. Al Fetori, Fateh A. M. Elwaer (Author)
20-37
في هذه الورقة البحثية تم تطبيق كل من دوال السبلاين غير متعددة الحدود الخطية والتربيعية لإيجاد الحل العددي لمعادلات فولتيرا التكاملية (VIEs). وقد تم اقتراح خوارزميات جديدة لأول مرة، وهو ما يُعد عنصرًا أساسيًا في هذا العمل.
في القسم (2)، تم حل معادلات فولتيرا التكاملية الخطية من النوع الثاني باستخدام دوال السبلاين غير متعددة الحدود الخطية والتربيعية في القسمين الفرعيين (2.1) و(2.2) على التوالي. وفي القسم (3)، تم تقديم حل معادلات فولتيرا التكاملية الخطية من النوع الأول عندما تكون k(x, x) ≠...
Abdalbaset M. Algish, Fathi I Ashour, Adel Elallam (Author)
Permanent salts are an essential element to determine the quality of water and its suitability for drinking and irrigation. Several techniques have been used to control these salts. The main purpose of this study is to use some natural materials and put them in samples from different sources of water in different quantities for varying periods of time, and note the change in these samples. The results obtained from using palm fibers in quantities of (12-24-48) gm for different periods of...
This paper describes how to develop a machine vision (MV) system. The goal of machine vision system is to reduce human error and inspection time. The applications of MV will increase as a result of the decrease in price in MV equipment. In general there are three primary areas to apply MV which are measurement, inspection and guidance. MV measurement systems measure the two dimensions or three dimensions by enhancing and processing the digital image of the objects under investigation....
In recent years, Polyethylene Terephthalate (PET) has become one of the most widely used polymers after polyethylene (PE) and polypropylene (PP) in several applications. The manufacture of water and juice bottles is one of the most important of these applications due to its physical properties such as transparency, hardness, and chemical properties, as it is considered chemically inert. In this research, two shapes, square and circular, were studied for a 7-liter bottle, which is used...
This study concluded that the hydroxylated iron(III) oxide compound Fe₃O₂(OH)₃ obtained more stable energy results than alone, and it was = -1962.811766411 Hartree, and in the case of merging with heavy elements, it was better stability than the state of iron(II) oxide Fe₂O₃, and this characteristic of these results in particular gives the preference in using it in the reaction and extracting heavy elements from an environment polluted with them. Also, the dipole moment results = 3.505542...
The content of "Materials and Methods" in the research paper provides the information through which the validity of the paper is judged. Therefore, the researcher is required to provide a clear and accurate description of how experiments or studies are conducted, and to rely on a logical basis to justify the choice of experimental procedures taken to answer the research question in a direct and organized scientific writing. Despite the abundance of scientific output in the Arabic language,...
Abubaker Ibrahim Al-Haji, Wafa Saleh Al-Karikshi, Naeema Ahmed Tabiqa (Author)
33-45
Adsorption technology is considered one of the most important techniques used in treating water pollution problems, due to its high efficiency, simplicity of the technology used, and limited cost. This study addressed the adsorption of lead and copper elements in solutions using Moringa seed powder as an adsorbent material. The experiment was conducted in the laboratories of the Oil Research Center, where the adsorption of some heavy elements (lead and copper) from their aqueous solutions...
This study has been conducted in the West Coast region / Libya, which is located about 45 km west of Tripoli city, which stretches from Sabratha west to Joudaim east, between longitudes of (12.425–13.025) and latitudes of (32.675–32.825). An isotopic study was carried out for 40 samples of groundwater (which were randomly selected) which distributed in four sections within the study area, in order to study the stable isotopes of the water molecule (δ¹⁸O), (δ²H), which gives evidence of...
