Background and Objectives: Linear alkyl benzene sulfonates are widely used as surfactants in formulated detergent products. Because of their use in household and industrial detergents, LAS is discharged into wastewater collection systems and subsequently entered to wastewater treatment plants. Therefore, it is important to determine the concentration of LAS with accuracy. They are usually deter...

Introduction: Social Security Organization is known as the biggest insurance organization, with coverage 28 millions of countryُ s population and 34 thousands personnel with wide spread realms of insurance, remedy, investment, … is important and key subject in economical and social structure of country therefore increasing productivity this organization include society of public benefits. Method...

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

Tomato (Lycopersicon esculentum Mil.) is one of the most important economical vegetable in the world and its greenhouse production has expanded during the recent years. In this study, the effects of two pruning methods on yield and some fruit quality traits indices of two varieties of tomato (Newton and Oregon) were investigated. In the first experiment (florescence pruning), treatments were ke...

Introduction: Unmet needs are defined as the difference between services judged necessary to deal appropriately with health problems and services actually received. Unmet needs are considered as simple tools in monitoring the accessibility and the extent of inequity in access and use of health care. Methods: This is a cross-section health survey. The sample consists of 792 households living in...

abstract ion selective electrodes (ises) are electrochemical sensors that respond selectivity to the activity of ionic species. an ion-selective electrode is an electrochemical device that uses a thin selective membrane or film as the recognition element, and is an electrochemical half-cell equivalent to other half-cells of the zeroth (inert metal in a redox electrolyte). in common methods o...

the issue of curriculum and syllabus evaluation and revision has been in center of attention right from when curriculum came into attention of educational institutions. thus everywhere in the world in educational institutions curricula and syllabi are evaluated and revised based on the goals, the needs, existing content, etc.. in iran any curriculum is designed in a committee of specialists and...

Introduction: It is obvious that, the organic load of wastewaters produced by food industries, especially the egg processing industry, is very high, therefore, it is necessary to use a cost efficient method with high efficiency for the treatment of this kinds of wastewater. Thus, the aim of this study was to investigate the effect of the electro-coagulation process for the treatment of the wast...