1. Investigate and explain in your own words Just-in-Time production (JIT) (30 points).
2. Investigate and explain in your own words what Kanban is (25 points).
3. Identify successful implementations of JIT production and Kanban in different industries (25 points).
4. Identify at least three poka-yokes in day to day life (5)
5. What are the embedded tests? (5 points)
6. How might you improve these poka-yokes? (10 points)

Some reminders about HW2 which is valid for other assignments:

This is an individual assignment.

• If you are referring to our book or any other references, you should give that part as a reference.
• You cannot simply copy-paste from any website any information. If you are copy-paste from anywhere, this can be PLAGIARISM. It is unacceptable. You always use your own sentences (I will check your assignment with SAFE ASSIGN software)
• You should not just Google the answers; Google is not a good reference. You should go to other textbooks or articles if you are using any references

Submission Requirements:

1. Use font size 12: 1.5 line spacing
2. One-inch margins on all sides.
3. Submit your HW2 in Microsoft Word or PDF format.
4. The cover page should include the course name, your name, date, and title

Technology trends.

Analyze the role of technology in Hip Hop dance and music by answering the following questions:

How has the changes in technology since the 1990’s through today changed how artists produce and present work?

How has changes to technology since the 1990’s allowed Hip Hop dance to become more mainstream?

How does the ease of access to music and movement impact the artists ability to control access to their content and how does this impact copyright issues?

Your paper should be 3-5 paragraphs in length. Find a minimum of two additional sources to support your viewpoint.

Don’t forget to cite your work in MLA format!

This is a lab report.
Experiment: Acid-base titration including tables for the weigh by the difference of Na2CO3 and the titration of hydrochloric acid including the average total volume. Then table for weighing by difference if unknown soda ash with the titration of unknown using hydrochloric acid. This would be under the data section. No procedure is included in the lab report. Coefficient variation with accuracy error and standard deviation included in summary results and discussion section. Example calculations for one of the results are included in the example calculations section. Calculate the percent Na2CO3 in unknown using the molarity of the HCl solution.
Example lab is given for template.

Simple Pendulum

Discussion and review

A pendulum is a weight hanging from a fixed point so that it swings freely under the combined forces of gravity and momentum. A simple pendulum consists of a heavy pendulum bob (of mass M) suspended from a light string. It is generally assumed that the mass of the string is negligible. If the bob moves away from the vertical to some angle θ, and is released so that the pendulum swings within a vertical plane, the period of the pendulum is given as:  T = 2π

Table 1: contents of Formula

symbol	Description
T	Period of a pendulum to complete one cycle
L	Length of string
g	Acceleration due to gravity: 9.81 m/s2

 

Part 1: changing the amplitude

Before beginning, find a solid support from which to hang the pendulum. Ideally, there should be a wall close to the support so the protractor and tape measure can be attached for recording the pendulum’s movements. A bathroom or kitchen towel bar is ideal for this purpose.

A support similar to that shown in Figure 3 can be constructed and placed on a narrow shelf or tabletop. It is important not only that the support allows the pendulum to hang freely, but also that you are able to read and record measurements from the protractor and tape measure. Do not allow the pendulum string to touch anything or be obstructed from any direction. The pendulum apparatus must also be sturdy enough so that it does not bend, flex, or move in any manner as this will introduce error into the experiment. See Figure 4 for an example setup with the pendulum bob hanging from an over-the-door hanger.

 

1. Attach a small plastic bag to the spring scale.
2. Add washers to the plastic bag until the scale measures approximately 25 g total. The filled bag will hereafter be referred to as the bob. Record this value as “Mass of bob” in the place provided in Data Table 1.
3. Measure a piece of string that is approximately 120 cm in length. Tie the string around the top of the bag so that the washers cannot fall out. Suspend the bob from this string so that it measures exactly 1 m (100 cm) between where it attaches to the support and the bottom of the bob.
4. Use tape to affix the protractor behind where the string is attached to the support so you can measure the pendulum’s amplitude in degrees. The center hole in the protractor should be located directly behind the pivot point. The string should hang straight down so that the string lines up with the 90^o mark on the protractor. See Figure 4 as an example of the correct placement of the protractor.
5. Stretch the measuring tape horizontally and use tape to affix it to the wall or door so that its 50-cm mark is directly behind the bob at rest.
6. Displace the bob out to the 5^o mark and hold it there. Then observe the bob’s location during its first cycle as it swings relative to the tape measure and record the distance in centimeters as “Amplitude (bob horizontal displacement)” in Data Table 1.
7. With a stopwatch ready to begin timing, release (do not push) the bob and begin timing how long it takes the bob to move through five complete cycles. Record this first trial time in Data Table 1 for Trial 1. Repeat the procedure for the second and third trials. Then average the three trial times to calculate the average period for one cycle, and record this value in Data Table 1.
8. Repeat this procedure, releasing the bobs at 10°, 15°, 20°, 25°, and 30°, and recording the results for each of the angles in Data Table 1.

 

Length of string: _____ cm = _____ m          Mass of bob: _____ g = _____kg

 

Data Table 1: Trial values at varying degrees

 

Placement of BobDegrees	Amplitude (bob horizontal displacement) cm	Trial 1 (s) 5 cycles	Trial 2 (s) 5 cycles	Trial 3 (s)5 cycles	Avg. Time (s)5 cycles	Period 1 cycle
5 o
10 o
15 o
20 o
25 o
30 o

 

IMPORTANT: The pendulum must swing without obstruction and should not strike the background as it swings.

Part 2: changing the mass

9. Add more weights to the bag until the mass has doubled to approximately 50 g. Record this value as “mass of bob” in grams into the line provided next to Data Table 2.
10. Repeat the procedure used in Part 1 using only a 10^o amplitude for the starting point of the Record the data in Data Table 2.

Length of string: ________ cm = _______ m Amplitude: 10° 

Data Table 2: Trial values for bob masses

Bob weight (g)	Bob weight (kg)	Trial 1 (s)	Trial 2 (s)	Trial 3 (s)	Avg Time (s)	Period
g
g

Part 3: changing the length of string

11. Remove the weights until the original mass used in Part 1 (approximately 25 g) is inside the bag. Record this “mass of bob” in grams into the line provided next to Data Table 3.
12. Put the original bob containing the washers back onto the pendulum. Use a 10^o amplitude and perform three trials each with successively shorter lengths of string. For example, 1 m, 0.75 m, etc. Record the time in seconds into the columns labeled “Trial #1, 2, or 3 s” in Data Table

Mass of bob: ________ g = _______ kg Amplitude: 10^o

Data Table 3: Trial values for string length

Length (m)	Trial 1 (s)	Trial 2 (s)	Trial 3 (s)	Avg Time (s)	Period
.25
.50
.75

Part    4:         Calculations

13. Solve the pendulum formula for g using the values derived from this experiment. Equation 3 will be used in calculating “g.” Substitute the average data for time and the length of the pendulum into the formula. Calculate to three significant figures. Then calculate your percentage error as compared to the accepted value for g, which is 9.81 m/s². See Equation 4.

Equation 3:

Where:

• g = acceleration due to gravity
• t = time in seconds
• L = length of pendulum string in meters

Note: If you get very large errors, such as 20% or more, in this lab, double-check your calculations.

Equation 4:

% error = experimental value – theoretical value × 100

theoretical value

Introduction

Sieve analysis is a method used to determine the grain size distribution of a soil by passing it through a series of sieves. This method is applicable for soils that are mostly granular with some or no fines. The particle size analysis for the fines portion is done using the hydrometer analysis method. The data from the sieve analysis are used to characterize the soil and can be used to reject or accept material for specific engineering applications. Sieve analysis does not provide information about the shape of the particles.

Table 1 – Soil quantity as per ASTM D1140

Objective

• Understand the grain size distribution analysis of soils.
  § Classify the coarse-grained portion of the soil
  § Obtain a distribution of the fine-grained portion of a soil.

Apparatus (Refer to Figure 1)
1. Stack of sieves.
2. Mechanical shaker.
3. Balance. The balance has to be sensitive up to 0.1 g.

4. Mortar and a rubber-tipped pestle.

5. Brush.

Procedure

1. Prepare the soil sample. The approximate minimum mass of sample is defined according to the nominal diameter of the largest particles of the soil (refer to Table 1).
2. Take the sample by spooning it randomly. Collect the sample by braking the soil sample into individual particles using a mortar and a rubber-tipped pestle.
3. Determine the mass M of the sample accurately to 0.1 g.
4. Assemble a stack of sieves (Figure 2, a). A sieve with larger openings is placed above a sieve

with smaller openings. Place a pan under the smallest sieve.

1. Place the set of sieves on a mechanical shaker.
2. Pour the soil sample prepared in step 2 into the stack of sieves from the top.
3. Cover the top of the stack of sieves.
4. Run the mechanical shaker for 10 minutes.
5. Stop the mechanical shaker and remove the stack of sieves.
6. Weigh the amount of soil retained on each sieve and in the bottom pan.
7. If a considerable amount of soil with silty and clayey fractions is retained on the No. 200 sieve, it

has to be washed. Washing is done by taking the No. 200 sieve with the soil retained on it and pouring water through the sieve from a tap in the laboratory. When the water passing through the sieve is clean, stop the flow of water. Transfer the soil retained on the sieve at the end of washing to a porcelain evaporating dish by back washing. Put it in the oven to dry to a constant weight. Determine the mass of the dry soil retained on the No. 200 sieve. The difference between this mass and that retained on the No. 200 sieve determined in step 10 is the mass of the soil that has washed through.

Calculations

1. Calculate the percent of soil retained on the n-th sieve,

(Mass retained, Mn) / (total mass, M [step 3]) × 100 = Rn

1. Calculate the cumulative percent of soil retained on the n-th sieve, ΣRn
2. Calculate the cumulative percent passing through the n-th sieve, Percent finer = 100 – ΣRn
3. If soil retained on the No. 200 sieve is washed, the dry unit weight determined after washing (step 11) should be used to calculate the percent finer than No. 200 sieve. The weight lost due to washing should also be added to the weight of the soil retained on the pan.
4. Make a semi-log plot of percent finer versus log of particle diameter (Figure 2, b).

6. Compute the coefficient of uniformity, Cu, and the coefficient of gradation, Cc. Cu = D60 / D10

Cc = D230 / (D10 × D60)

Where, D60 is the particle size in millimeter corresponding to 60% passing; D30 is the particle size in millimeter corresponding to 30% passing; D10 is the particle size in millimeter corresponding to 10% passing. The values can be obtained using the plot, see Figure 1 for reference.

Note: the mass loss during sieve analysis has to be smaller than 2%.

References

Das, M. “Soil Mechanics Laboratoyr Manual.” 2009 Oxford Press, NY, Seventh edition.

Discuss in considerable depth one specific driver of change and identify ways in which it is altering the way businesses conduct their daily and strategic activities.

Write a term paper about additive manufacturing in the construction industry. Define additive manufacturing. Explain where additive manufacturing has been used generally. Discuss the advantages and disadvantages of additive manufacturing. Explain applications of additive manufacturing in the construction industry. Discuss the challenges encountered in additive manufacturing. What is the status of additive manufacturing today?

Paper to be 25-30 pages long, Harvard style formatting, and use a minimum of 15 scholarly sources.

Each student is required to complete a descriptive research report, in APA format,
which addresses the following items:
• Identify the modes of heat transfer.
• Describe the characteristics of each mode of heat transfer.
• Describe the relation of each mode as they relate to combustion processes and
fire behavior.
* Use Times New Roman font size 12 for this assignment.
* Use the Publication Manual of the American Psychological Association [APA],
7th edition as reference to complete the class project.
Take the following steps to complete this assignment:
1. Read Chapter 5 of the course textbook, review the Lesson 6 Presentation and additional artifacts provided.