basis is that the small balls fill in the gaps between big ones to fully improve the bulk density of the steel ball. On one hand‚ it can improve the impact force and times of the first chamber. On the other hand‚ high packing density can make materials to be grinded well. In two-level gradation‚ the big ball is mainly used to grind and impact materials. The small ones are used to fill gap between the bulk density‚ to improve the grinding body‚ to control the flow of materials‚ and to increase the
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MATERIALS AND METHODS Study Site The assessment of mangrove forest ecosystem was carried out in Butig Island‚ Salcedo‚ Eastern Samar from February – April 2014. Butig Is. is located at 11° _________N; 125° ______ E. Geographical coordinates of the study site were determined using the GARMIN GPS unit‚ and was plotted in Manifold. The map of the study site is shown in Figure 1. Figure 1. Map of Butig Island showing the seven plots Field Sampling Physico-Chemical Parameters The physico-chemical
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Introduction In this lab‚ the density of 20 glass beads were determined using two different methods and the results were compared to see how close the values were to each other. In first method the volume of each individual bead was measured using the diameter of each bead‚ along with the mass. In the second method the beads we treated as a whole unit. The total mass was measured and volume was measured based on the amount of water that was displaced in a graduated cylinder. Then‚ the beads
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has to be reduced it is essential that the representative nature of the sample be maintained. Suitable methods for sample division are by coning and quartering or by the use of sample divider. 2. TESTING FOR LOOSE BULK DENSITY 2.1 Introduction The loose bulk density‚
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factors that affect the period of a pendulum: The relationship between Density and Time Investigate factors that affect the period of a pendulum: The relationship between Density and Time IB Physics Internal Assessment IB Physics Internal Assessment Introduction The purpose of this experiment is to investigate the relationship between density and time in a homemade pendulum. In order to investigate the phenomenon‚ the density of the hanging object is going to change‚ and by recording the time
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particles are given the sizes of equivalent spherical particles. The density of a soil-water suspension depends upon the concentration and specific gravity of the soil particles. If the suspension is allowed to stand‚ the particles will gradually settle out of the suspen- sion‚ and the density will be decreased. The hydrometer is the instrument used to measure the density of the suspension at a known depth below the surface. The density measurement‚ together with knowledge of specific gravity
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Materials Conveyed by Dynamic AirMaterials of varying bulk density and particle size have been tested and conveyed at the Dynamic Air test facilities. For information on a particular material‚ select from the list below by the first letter of the material.Dynamic Air recommends testing of a material to determine exact performance specifications and operating parameters Materials Conveyed by Dynamic AirMaterials of varying bulk density and particle size have been tested and conveyed at the Dynamic
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Discussion a) The value of bulk density is 1.7921 × 10-3 kg/mm3 and the moisture content value is 0.31 %. b) Based on our visual observation‚ the colour of the soil sample that we had was light brownish. The texture of the soil was not too dry and either wet‚ it is loose because it contains broken rock particles or they are the resistant components of rocks broken down which it has rotund shape. Conclusion 1) The possible sources of error which made during experiment was first of all
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Experiment 2: Measurement of equivalent radius‚ bulk density and solid density of granular materials. Objective: To measure the equivalent radius‚ bulk density and solid density of granular materials. Materials: Red beans‚ green beans and ground nuts. Apparatus: 100mL measuring cylinder‚ 50mL measuring cylinder‚ analytical balance and cooking oil. Procedure: Results: Table 2.1: Data of equivalent radius‚ solid density‚ bulk density and porosity of granular materials. nj Red beans Green
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Activity 3: DIY Lava Lamps Students will understand density‚ chemical reactions and simple circuits by creating a nifty take home‚ reusable lava lamp. Set-up: Every student will need two LED lights‚ two coin batteries‚ and a water bottle. Keep the water‚ vegetable oil and food coloring at a communal table so that you can track the amount each student is using. Electrical tape can be distributed to the tables to share. Demo and discussion: Although building lava lamps seems like a lighthearted
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