Linear actuator

Since all the mechanisms needed to adhere to pre-set design specifications¬¬, space, functionality, and cost had to be optimized. A scissor lift was chosen for its perceived advantage over other lifting mechanisms, such as linear actuators or pulleys, because of its unique ability to create a large vertical change in height with a relatively small lateral displacement of arm brackets. A pulley was not implemented because of the impractically and safety hazard behind using a complex rope-and-gear driven system to transfer a patient out of bed. Addition safety features would have been needed to protect the user from being caught in the pulley, and catches would have been required to prevent drastic changes in motion in the event the ropes failed. A linear actuator was discounted because affordable devices would not exert the minimum force of 1.4 Newtons required to lift the G.I. Joe action figure; though devices where available on the market that provided more than a sufficient amount of force, their prices exceeded the budgeted $200. In addition, the was a positive correlation between force output of the actuator and size of the actuator itself, making the use of an actuator impractical due to limitation in size of the wheelchair. Though multiple smaller actuators could have theoretically been used to collectively provide enough force, stability, space, and cost were thought to be limiting factors. The issues of slack versus stability associated with scissor lifts rose during…

Middle Minoan and Late Minoan, and every section was again divided in A and B, early and late. Evans never intended to assign the pottery to a specific calendrical date. He correlated the findings with artifacts recovered in Egypt, finding obvious similarities and establishing a more specific date. This dating system presents some flaws, such as the inability to capture all the data; however, archaeologist still use this method by default. The careful conservation of artefacts is vital to…

Dakota McNany Gerontology Sophomore 3. Short Answer Questions (10 points each, 20 points total). Choose two out of four. It is expected the length of the text for each question is about 150-200 words, single spaced. D. Why is the Knossos Palace laid out in a rather irregular form? The largest Minoan site, The palace and labyrinth at Knossos, is also perhaps the most widely known Minoan site throughout the world. Directly under this site are the remains of Neolithic settlements. These…

Overall, the elaborate palace of Knossos causes historians to think that the people of Minoan civilization were happy and prosperous. 2. The Phoenician Alphabet- Around 950-750 BC the greeks adopted the Phoenician alphabet. This alphabet was different from all other ones because it used one letter to represent one sound instead of one letter to represent one syllable like in Linear A and B. This makes the language much easier to write, read, and…

different systems of writing. One of these systems is known as Linear B. These Linear B tablets were deciphered in the 1950s by Michael Ventris. Ventris, after decoding the tablets, realized that the Linear B writing is the earliest form of Greek. Like Linear A, Linear B is a form of writing where one symbol represents a syllable. Additionally, the date the Linear B tablets originate from is quite interesting. The date of Linear B tablets date from before the fall of Knossos Palace in 1375 BCE.…

This paper will study the relationship between a country’s perceived amount of corruption, and how that affects the wages of its domestic workers. The premise behind this paper is that a country that is perceived as being dishonest and corrupt would have lower wages. Corruption in government is seemingly always present in our world. This paper will try to determine if there is a correlation between a country’s perceived corruption and the monthly disposable income its workers earn with…

the components were performed by an individual blinded to the mechanical results. Statistical Analysis Statistical analysis were performed using Prism V5.0 software (GraphPad Software Inc., San Diego, California). Mean values and standard deviations are reported to compare the average results between the tissue groups and amongst the regions. In all statistics, the differences were considered significant when P-values ≤0.050. The effect of quadrants/tissue types on thickness, incremental…

b. c. d. e. Formulate the dual of this model. Define the dual variables and indicate their value. Determine the optimal ranges for c1 and c2. Determine the feasible ranges for q1 (pounds of brass) and q2 (labor hours). What is the maximum price the company would be willing to pay for additional labor hours, and how many hours could be purchased at that price? 43. The Southwest Foods Company produces two brands of chili—Razorback and Longhorn—from several ingredients, including chili beans…

the paper focuses on analyzing historical data with a view of forecasting expected monthly sales. The case requires monthly sales to be projected, given the assumption that the actual monthly sales are correlated with the number of hits on the company’s website in the previous month. Consequently, the historical data on actual sales and number of hits are both used to forecast the expected sales over a period of three months. Notably, forecasting entails application of simple linear regression…

Linear programming which is also known as “Linear Optimization” is a way to achieve best outcomes in a Mathematical Model using different linear solutions .Linear Programming is a special case of Mathematical Optimization .Linear programming can be applied to a wide variety of fields of study, and has proved useful in planning, routing, scheduling, assignment, and design, such as in transportation or manufacturing industries. The method of Linear Programming was originally developed by American…