■» Marked by Teachers This document was downloaded from www.markedbyteachers.com Abstract The tensile test is widely used to provide basic design information on the strength of materials and as an acceptance test for the specification of materials. The teaching and learning of tensile testing was based on laboratory experiments used in the Mechanical Engineering Laboratory (CM180) at the City University. The experiment looked at how the microstructure of a material can affect its properties
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Tensile Testing Laboratory By Stephan Favilla 0723668 ME 354 AC Date of Lab Report Submission: Date of Lab Exercise: February 11th 2010 January 28th 2010 1 Executive Summary Tensile tests are fundamental for understanding properties of different materials‚ and how they will behave under load. This lab tested four different materials‚ including A-36 hot rolled steel‚ 6061-T6 Aluminum‚ polycarbonate‚ and polymethylmethacrylate (PMMA). Each material was tested three times using an Instron
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MICROSCOPY Objective: 1. To learn how to use both a dissecting and a compound microscope effectively and efficiently (lighting‚ focus‚ magnification‚ resolution)‚ and to practice manipulating small organisms Principals: 1. The smallest object viewable under a compound light microscope is limited by resolution or resolving power (ability to distinguish between two nearby points) and not magnification. 2. Mircoscope resolution is limited by the wavelength of the source of illumination (visible
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agranular white cells. There are three different types of granular leukocytes. Neutrophil is a phagocyte‚ produced in the bone marrow that ingests and destroys bacteria extremely fast. Neutrophil has a diameter‚ which is‚ about ten to twelve micrometers long. They make up about 60-70 percent of the total number of white blood cells in our body. Eosinphil is a type of white blood cell that secretes poisonous materials in order to kill parasites‚ allergies and phagocytosis of bacteria‚ which is
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Lab Report: Scientific Method Name: nayleen larios _____________________________________________________________ Purpose of this Lab What is the goal of this lab? What question is it trying to answer‚ or what problem is it trying to explain? Too see the temperature of higher salt concentrated water; what water has a higher boiling point. Hypothesis After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. What
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INTRODUCTION This lab experiment required students to learn and participate on the usage of a manual lathe machine in order to shape a given raw material into a given specified end product. The class was divided into groups of 4 students. Each group will be assigned to one manual lathe machine and given three pieces of cylinder shaped mild steel rod and a schematic diagram to. A lab technician will brief the students in the usage of the machine and the processes required to machine the specified
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Different types of muscle contractions: Isometric- muscle contraction without a change in the length of muscle Concentric- Muscle applies force as it shortens (lifting) Eccentric- Muscle applies force as it lengthens (lowering) Difference between type 1 and type 2 muscle fibers * Slow-twitch fibers * Type-I fibers * Fatigue resistant * Contract slowly and with relatively little force * Rely primarily on oxidative energy system * Fast-twitch fibers
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The HM case study opened many doors in the medical and scientific worlds. Henry Molaison was affected by epilepsy at a young age due to a head injury. By the time he was 16‚ Henry suffered from severe epilepsy causing him to have multiple seizures in a single day. By the age of 27 his epilepsy was so bad he couldn’t get a job so he went to go see Dr. William Beecher Scoville at Hartford Hospital in Connecticut. From that moment‚ Henry Molaison agreed to take part in a highly experimental surgery
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|Compound Microscope Parts | |[pic] | |A high power or compound microscope achieves higher levels of magnification than a stereo or low power microscope. It is used to view smaller | |specimens such as cell structures which cannot be seen at lower
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strains measured along corresponding axes of rosette elements‚ in/in (m/m) ν = Poisson’s Ratio E = modulus of elasticity‚ psi (N/m ) y = deflection (in) P = force‚ lbs L = distance from clamp to loading micrometer (mm) x = the distance from the loading micrometer to the rosette centreline t = the beam thickness‚ in (m) b = beam width‚ in(m) c = semi thickness of the beam‚ in (m) M = bending moment at rosette centreline‚ psi(Pa or N/m²) ε p‚q = algebraically maximum and
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