Effects of preschool education in preparing children for the first grade in terms of linguistic and mathematical development

The purpose of this research is to determine the level of children's readiness forthe first grade, in terms of mathematical and linguistic development. This research is quantitative and includes 466 children who were enrolled in the first grade in September2011, as well as their parents. They belong to various schools in towns and villages of Kosovo. The sample was randomly selected. Children are assessed for their intellectual readiness separately in mathematical and linguistic development through standardized measuring instrument by the "Brainline" author Joey Du Plooy . The questionnaire wastranslated and adapted. In this paper it will be focused only mathematical and linguistic development of children who have just started the first grade. Children are evaluated bya team of pedagogs who have been previously trained in the use of this questionnaire.Each child is individually assessed and the questions that were impossible to take from the children are taken from their parents. The survey results raise awareness about theimportance of preschool institutionalized education and provide advices of the importanceof preparing children for starting the first grade without fear and with self-esteem

INTELLIGENT OPTIMAL TOOL SELECTIONS FOR CNC PROGRAMMING OF MACHINE TOOLS

The aim of this paper is to improve CNC programming of machine tools and to minimize the need for human intervention or manual inputs. Proposed optimization method of tool selection is based on GA. Experimental approval is done using Matlab environment and shown, that proposed method is useful for optimization of cutting tool selection. This approach is going to more and more sophisticated, so called intelligent way of CNC programming

INTELLIGENT OPTIMAL TOOL SELECTIONS FOR CNC PROGRAMMING OF MACHINE TOOLS

The aim of this paper is to improve CNC programming of machine tools and to minimize the need for human intervention or manual inputs. Proposed optimization method of tool selection is based on GA. Experimental approval is done using Matlab environment and shown, that proposed method is useful for optimization of cutting tool selection. This approach is going to more and more sophisticated, so called intelligent way of CNC programming

Utilization of FlexSim Software to Identify the Suitable Layout Planning of Production Line

The possibility of increasing production capacity by re-designing the actual layout and material flow at the Elsam factory is explained in this article. Planning of the actual layout needs some improvements because it does not meet customer demand. The actual layout is found to be disorganized on material flow which leads to a decrease in production capacity. Three different layouts are considered and analyzed. A comparison between the proposed and actual layout is shown to find out the influence on production capacity. According to the data taken from simulation software FlexSim, significant improvement is foreseen. This study reveals that redesigning the layout ensures an increase of production capacity and decrease the possibilities of accidents during transportation between consecutive workstations by decreasing the traveling distance

HEAT AFFECTED ZONE MICROSTRUCTURE OF WELD JOINT PREPARATION IN ARTIFICIAL MANNER

This paper presents two possibilities of martensitic (fine grain and coarse grain) microstructure preparation. These microstructures are present as sub-zones in the heat-affected zone of welded joints, but due to the narrow region of HAZ in a real weld, only a few tests are possible to perform such as micro-hardness. Welding simulator and laboratory furnace were used as methods for the preparation of the specimens. The material used in this study was a Nickel Molybdenum alloy steel (18CrNiMo7-6). Investigation of the mechanical properties of sub-zones of the HAZ of this particular alloy steel, were done by applying proper thermal cycles. Hardness and diameter of grain size were measured, tensile strength is calculated and Charpy instrumented test of both microstructures were performed in room temperature. The difference in Impact toughness was remarkable due to the difference in microstructure, energy for initiation and propagation were calculated by comparing (F-t and E-t) diagrams for both microstructures. The study revealed that the preparation of specimens with microstructure as at welded condition is possible, and it could lead to prepare samples for investigation of other mechanical properties such as fatigue crack growth and fracture toughness test