blocks. However‚ with a greater emphasis on increasing the efficiency of the engine via weight reduction‚ manufacturers have began to look for alternative alloys that are lighter than cast iron and aluminum alloys‚ while retaining the necessary strength to withstand the forces of an engine. As of late‚ new manufacturing processes have been developed that have engendered two new alloys suitable for use in an engine block‚ magnesium alloy AMC-SC1 and compacted graphite cast iron (CGI). In this
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Materials 2013a)‚ Yield Strength = 250MPa (AZO Materials 2013a)‚ Tensile Strength= 400-550MPa (AZO Materials 2013a)‚ Ductility based on elongation=23%( AZO Materials 2013a)‚ and ductility based on area of reduction = 15% (AZO Materials 2013a). A published value on the modulus of resilience could not be located. The published values for the aluminium specimen are‚ Modulus of elasticity= 68.9GPa (ASM Incorporated n.d.)‚ Yield Strength= 276MPA (ASM Incorporated n.d.)‚ Tensile Strength= 310MPa (ASM Incorporated
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Definition: Muscular endurance is the ability of a muscle or group of muscles to sustain repeated contractions against a resistance for an extended period of time. he combination of strength and endurance results in muscular endurance - the ability to perform many repetitions against a given resistance for a prolonged period of time (1). It is a crucial element of fitness for athletes such as distance runners‚ swimmers‚ cyclists and rowers. It’s also important for success in many team sports like
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2024-T4 aluminum and cast iron. 2024-T4 aluminum is concluded to be most ductile (25.7 % reduction in area) and cast iron the most brittle (123 MPa). Effects of cold rolling in 1045 steel are apparent‚ as it has the highest strength among the materials tested (402 MPa yield strength). Impact test measured the impact energy of 1045 steel‚ 2024 aluminum‚ polypropylene (PP)‚ and poly(methyl methacrylate) (PMMA). This test also observed the effect of temperature on material ductility. The fracture-toughness
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impact properties are important. The effect of unmodified and titanate treated nano-CaCO3 on the microstructure as well as on the mechanical‚ barrier‚ optical properties of PVC films‚ prepared by solution casting method were studied. The tensile strength and barrier properties of nano-CaCO3/PVC increase with increasing loading of CaCO3 nanoparticles due to increased interfacial contact area and enhanced interfacial adhesion between CaCO3 nanoparticles and PVC matrix. Titanate treated nano-CaCO3/PVC
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Class 1 Metallic bonding: Found in metals and alloys‚ 1‚ 2‚ or 3 valence electrons that are not bound to any particular atom in the solid. They drift throughout the entire metal. This results in a sea of electrons. These free electrons result in good electrical and heat conductivity. Coordination number is 8 or 12 (number of nearest neighbors). Ionic Bonding Found in compounds that are composed of both metallic and nonmetallic elements. Metallic element gives up valence electrons to the
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StrengthsQuest™ Assignment For this project you will be completing the StrengthsQuest exercise and then compiling the information and findings comparing your personal strengths with your current job. Completing the StrengthsQuest™ Assignment StrengthsQuest™ is a self-assessment tool that will provide you with valuable feedback on your strengths (you will use your findings for this assignment as well as for the NU300 Professional Development Plan). Completing the StrengthsQuest should take about 45 minutes
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operating at 120kPa. While at higher voltage levels‚ the advantages of high pressure GIS become dominant. But the more suitable design is below the low pressure GIS at a rate voltage of 72.5kV. A higher SF6 gas pressure will increase the dielectric strength. As a result‚ for a given voltage level the required conductor spacing is reduced‚ resulting at a more compact design. Due to the economical and functional reasons‚ high voltage switchgear with SF6 gas is commonly used. The replacement of SF6 with
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muscular strength and endurance‚ cardiovascular‚ and body composition)? My flexibility has not increased at all because I have not been consistent with my stretching. However I increased the amount of cardio and weight at the gym‚ I believe the increase in cardio resulted in a slightly faster time for my mile run because I have built up an endurance. The increase in weight at the gym has resulted in me performing more pushups and curl ups. These fall under the category of muscular strength. Section
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Title: Grip Strength and Muscle Fatigue I. Purpose/Hypothesis: In this lab the subject will grip on a scale that measures the amount of force being put on it. We will observe the change in hand strength during continuous grip over time. Then we will also measure hand strength during rapid‚ repetitive gripping. I believe that hand strength will weaken during a continuous grip more than if you were to keep a repetitive grip. II. Procedure: 1. Connect the Hand Dynamomenter to LabQuest and select
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