Search results “Determining scale ratio for model”

The scale of a small model of the Eiffel Tower is determined by looking at the ratio of its dimensions as compared to the corresponding height and width of the actual tower.

Views: 7936
the AllAroundMathGuy

Views: 5510
Elisabeth Green

A quick description of how to work out the Ratio Scale of a given Map

Views: 19888
takageo

How to work with ratios and scale model exam questions. (Slight error on Q3b, correct solution at end of video!).

Views: 714
davidpye3142

This video reviews the scales of measurement covered in introductory statistics: nominal, ordinal, interval, and ratio (Part 1 of 2).
Scales of Measurement
Nominal, Ordinal, Interval, Ratio
YouTube Channel: https://www.youtube.com/user/statisticsinstructor
Subscribe today!
Lifetime access to SPSS videos: http://tinyurl.com/m2532td
Video Transcript:
In this video we'll take a look at what are known as the scales of measurement. OK first of all measurement can be defined as the process of applying numbers to objects according to a set of rules. So when we measure something we apply numbers or we give numbers to something and this something is just generically an object or objects so we're assigning numbers to some thing or things and when we do that we follow some sort of rules. Now in terms of introductory statistics textbooks there are four scales of measurement nominal, ordinal, interval, and ratio. We'll take a look at each of these in turn and take a look at some examples as well, as the examples really help to differentiate between these four scales. First we'll take a look at nominal. Now in a nominal scale of measurement we assign numbers to objects where the different numbers indicate different objects. The numbers have no real meaning other than differentiating between objects. So as an example a very common variable in statistical analyses is gender where in this example all males get a 1 and all females get a 2. Now the reason why this is nominal is because we could have just as easily assigned females a 1 and males a 2 or we could have assigned females 500 and males 650. It doesn't matter what number we come up with as long as all males get the same number, 1 in this example, and all females get the same number, 2. It doesn't mean that because females have a higher number that they're better than males or males are worse than females or vice versa or anything like that. All it does is it differentiates between our two groups. And that's a classic nominal example. Another one is baseball uniform numbers. Now the number that a player has on their uniform in baseball it provides no insight into the player's position or anything like that it just simply differentiates between players. So if someone has the number 23 on their back and someone has the number 25 it doesn't mean that the person who has 25 is better, has a higher average, hits more home runs, or anything like that it just means they're not the same playeras number 23. So in this example its nominal once again because the number just simply differentiates between objects. Now just as a side note in all sports it's not the same like in football for example different sequences of numbers typically go towards different positions. Like linebackers will have numbers that are different than quarterbacks and so forth but that's not the case in baseball. So in baseball whatever the number is it provides typically no insight into what position he plays. OK next we have ordinal and for ordinal we assign numbers to objects just like nominal but here the numbers also have meaningful order. So for example the place someone finishes in a race first, second, third, and so on. If we know the place that they finished we know how they did relative to others. So for example the first place person did better than second, second did better than third, and so on of course right that's obvious but that number that they're assigned one, two, or three indicates how they finished in a race so it indicates order and same thing with the place finished in an election first, second, third, fourth we know exactly how they did in relation to the others the person who finished in third place did better than someone who finished in fifth let's say if there are that many people, first did better than third and so on. So the number for ordinal once again indicates placement or order so we can rank people with ordinal data. OK next we have interval. In interval numbers have order just like ordinal so you can see here how these scales of measurement build on one another but in addition to ordinal, interval also has equal intervals between adjacent categories and I'll show you what I mean here with an example. So if we take temperature in degrees Fahrenheit the difference between 78 degrees and 79 degrees or that one degree difference is the same as the difference between 45 degrees and 46 degrees. One degree difference once again. So anywhere along that scale up and down the Fahrenheit scale that one degree difference means the same thing all up and down that scale. OK so if we take eight degrees versus nine degrees the difference there is one degree once again. That's a classic interval scale right there with those differences are meaningful and we'll contrast this with ordinal in just a few moments but finally before we do let's take a look at ratio.

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Quantitative Specialists

a tutorial on scale ratio demonstrating the 3 basic scale ratio problems. Finding the scale ratio, using scale ratio to find an actual measurement when given the model measurement, and using scale ratio to find a model measurement when given the actual measurement. I APOLOGIZE FOR THE CAMERA WORK. I had to use my 8 year old daughter on the camera.

Views: 79
garfish

When a figure is enlarged or shrank proportionally, or when two figures are similar, the scale ratio is the ratio of one side of the figure to the corresponding side in the other. When the scale ratio is given, we can solve an unknown side. Or, if a set of corresponding sides is given, we can write a proportion to solve for the unknown side.
This lesson is meant for prealgebra or grade 7 math.

Views: 9127
Math Mammoth

Views: 691
Bianca Millard

Finding the real distance between two points on a given map of scale 1:250000

Views: 367
davidpye3142

A picture can be enlarged but it remains similar to the original. Only the size is increased in a fixed ratio or by a scale factor.
Recipes have different things in a fixed ratio. To make for more people, each ingredient is multiplied by the scale factor. This results in Equivalent Ratio.
Watch video on Ratio as compare numbers and Equivalent Ratios.

Views: 2345
Anil Kumar

Learn More at mathantics.com
Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

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mathantics

a more thorough look at converting between map ratio and simple conversion scales.
Finding real life distances (but not map distances) using both

Views: 546
Australian Mathematics Curriculum Videos

Learn More at mathantics.com
Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

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mathantics

I show the different types of map scales and how to convert from a bar scale to a ratio scale.

Views: 7307
Geo Know

Ratio is comparing numbers like 3:4
This ratio can be multiplied or divided by same number, called scale factor. What we get is an Equivalent Ratio
3 x 5 : 4 x 5 = 15 : 20 , Scale Factor is 5
We say that 3 : 4 = 15 : 20 are in proportion as they represent the same ratio.

Views: 1901
Anil Kumar

Views: 4251
MUCFPDC

This video demonstrates how to interpret the odds ratio for a multinomial logistic regression in SPSS. In this example, there are two independent variables: one nominal variable with three levels and one continuous (scale) variable. One dependent variable with three levels is included.

Views: 32126
Dr. Todd Grande

The kind of graph and analysis we can do with specific data is related to the type of data it is. In this video we explain the different levels of data, with examples.
Subtitles in English and Spanish.

Views: 902004
Dr Nic's Maths and Stats

Learn the difference between Nominal, ordinal, interval and ratio data. http://youstudynursing.com/
Research eBook on Amazon: http://amzn.to/1hB2eBd
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Quantitative researchers measure variables to answer their research question.
The level of measurement that is used to measure a variable has a significant impact on the type of tests researchers can do with their data and therefore the conclusions they can come to. The higher the level of measurement the more statistical tests that can be run with the data. That is why it is best to use the highest level of measurement possible when collecting information.
In this video nominal, ordinal, interval and ratio levels of data will be described in order from the lowest level to the highest level of measurement. By the end of this video you should be able to identify the level of measurement being used in a study. You will also be familiar with types of tests that can be done with each level.
To remember these levels of measurement in order use the acronym NOIR or noir.
The nominal level of measurement is the lowest level. Variables in a study are placed into mutually exclusive categories. Each category has a criteria that a variable either has or does not have. There is no natural order to these categories.
The categories may be assigned numbers but the numbers have no meaning because they are simply labels. For example, if we categorize people by hair color people with brown hair do not have more or less of this characteristic than those with blonde hair.
Nominal sounds like name so it is easy to remember that at a nominal level you are simply naming categories.
Sometimes researchers refer to nominal data as categorical or qualitative because it is not numerical.
Ordinal data is also considered categorical. The difference between nominal and ordinal data is that the categories have a natural order to them. You can remember that because ordinal sounds like order.
While there is an order, it is also unknown how much distance is between each category.
Values in an ordinal scale simply express an order.
All nominal level tests can be run on ordinal data.
Since there is an order to the categories the numbers assigned to each category can be compared in limited ways beyond nominal level tests. It is possible to say that members of one category have more of something than the members of a lower ranked category. However, you do not know how much more of that thing they have because the difference cannot be measured.
To determine central tendency the categories can be placed in order and a median can now be calculated in addition to the mode.
Since the distance between each category cannot be measured the types of statistical tests that can be used on this data are still quite limited. For example, the mean or average of ordinal data cannot be calculated because the difference between values on the scale is not known.
Interval level data is ordered like ordinal data but the intervals between each value are known and equal. The zero point is arbitrary. Zero simply represents an additional point of measurement.
For example, tests in school are interval level measurements of student knowledge. If you scored a zero on a math test it does not mean you have no knowledge. Yet, the difference between a 79 and 80 on the test is measurable and equal to the difference between an 80 and an 81.
If you know that the word interval means space in between it makes remembering what makes this level of measurement different easy.
Ratio measurement is the highest level possible for data. Like interval data, Ratio data is ordered, with known and measurable intervals between each value. What differentiates it from interval level data is that the zero is absolute. The zero occurs naturally and signifies the absence of the characteristic being measured. Remember that Ratio ends in an o therefore there is a zero.
Typically this level of measurement is only possible with physical measurements like height, weight and length.
Any statistical tests can be used with ratio level data as long as it fits with the study question and design.

Views: 337354
NurseKillam

Mapping: Calculating distance using the ratio scale (Grades 7-10). I'm apologising on behalf of the fish for its bad manners at about 6:08 on the movie. It was never planned..

Views: 47776
Fish

https://mathsaurus.com/past-papers/edexcel-igcse/igcse-exam-questions-by-topic/
Exam questions from Edexcel IGCSE papers on ratio, percentages and scale factors. More at http://www.mathsaurus.com.
Visit the Mathsaurus Amazon shop at https://www.amazon.co.uk/shop/mathsaurus to see some of my favourite books and math related products!

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Mathsaurus

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S Ferner

Author: M.Arch Miroslav Popovic
SCALE MODEL PROCESS Beginning with the drawings of the plans, elevations, using books, pictures and videos of the existing buildings, to then carefully began the process of cutting, one by one, every single detail of the building by hand, and adding the finishing touches of color and texture as in the real ones.

Views: 363
Miroslav Popovic

Views: 375
Alexander Burt

Going over how to use a simple calculator and simple mixing tools too insure you get the correct amount of oil into your fuel so you don't damage your motor. Remember the larger number such as 25 or 32 is how much fuel, this number simple changes the amount of oil. 25 would be the amount of fuel and 1 would be the amount if oil. 25:1 is 40 ml per liter. 30:1 is 33.3 ml per liter. 32:1 is 31.25 to 1 liter and always remember 1 liter is 1000 ml

Views: 2003
Power Evolution RC

How to solve ratio problems using a scale factor

Views: 19237
larryschmidt

In This video we will learn about the math of drawing something to scale. Don't worry you won't need to know how to draw, or I'd be fired! We will discuss enlarging, and reducing and see examples of each!
This can also be used as a supplemental resource for Eureka Grade 7 Mathematics: Module 1: Topic D: Relating Scale Drawings to Ratios and Rates.
Calculator I recommend for Math 7 - Pre-Algebra. It can do almost anything inside of Algebra 1 as well and is fairly inexpensive.
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For Some fun IQ Puzzles to help build up your math brain check out my Amazon Shop.
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Eric Buffington

How to calculate gradient. You would use a topographic map for this, as well as the map scale to calculate distance. Feel free to watch my other videos on Geography's mapping component.

Views: 84819
Fish

When is a scale not a scale? When it is designed to measure ratios.
The Ratio Scale is a brewing tool from Brewista. It helps you calculate the water needed for pour over coffee based on the amount of coffee grounds used. With an Auto Mode and a Manual Mode, the Ratio Scale is simple to use and the coffee-to-water ratio settings are easily adjustable. This scale is unlike any other scale on the market -- it is not intended to be used for simple weighing and taring. Instead, Brewista has designed the Ratio Scale as a tool to help those who wish to perfect their brew ratios for pour over.
For more information on the Brewista Ratio Scale, click here: http://clean-machine.com.au/Brewista-Ratio-Scale.html

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Bombora Supplies

Learn More at mathantics.com
Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

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mathantics

Similar figures. Scale factor and constant ratio between figures.

Views: 2147
Jessie Mason

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Unveiling his "Hot Crazy Matrix" to the world for the first time on YouTube, 46-year-old armchair sociologist and unsung American hero Dana McLendon just changed the dating game for men everywhere
Leave it to a 46-year-old suburban dad to crack the complex code that is womankind. Dana McLendon, a pistol-packing lawyer from Tennessee who gives off more of an algebra teacher vibe, appears in a YouTube video posted last week by Tactical Response CEO James Yeager, the defense-training expert best known for threatening to “start killing people” if the government tightened gun control laws. Calling upon all the wisdom he’s gained about women, dating and finding the one in his half-century on earth, McLendon outlines what he calls his “Universal Hot Crazy Matrix,” which is “everything a young man needs to know about women” summarized in one convenient infographic.
As much as we really wanted to hate it, we have to hand it to McLendon—though his chart pushes all the uncomfortable buttons in the politically incorrect, misogynistic ways you’d expect, it kind of works. As a female viewer, it’s sort of like being a redneck who likes Jeff Foxworthy. And the man has a gift for deadpan delivery.
McLendon’s matrix begins with his “hot” and “crazy” axis, with hot measured on the usual scale of one to 10 and crazy starting at four, “because of course there’s no such thing as a woman who is not at least a four crazy.” The “hot-crazy line” is drawn diagonally, dividing the grid into various quadrants of desirability, which he unpacks for viewers with the cold, hard logic of a pragmatist. McLendon advises that any woman below a five in hotness be automatically relegated to the “No Go Zone” because “life is better this way.”
“As a rule,” he says, “we do not date or marry women who are not at least, in our mind, a 5.”
he No Go Zone abuts the “Fun Zone,” which is reserved for women who fall below the crazy line and between five and eight on the hot scale. “You can hang out here and meet these girls and spend time with them,” McLendon says. “But keep in mind…you want to move out of the Fun Zone to a more permanent location.”
Above the Fun Zone is the “Danger Zone,” which is where you find your classic stage-four clingers. “This includes your redheads, your strippers, anyone named Tiffany and hair dressers,” he says. “This is where your car gets keyed, you get a bunny in the pot, you’re tires get slashed and you end up in jail.”
If You Have any Doubts check the links below:
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Views: 9347480
LOL...Seriously...!!!...???

Mapping: A step by step explanation on how to calculate a bearing. This is one of a number of videos that I've created to help students with mapwork. My other videos include the following topics: Linear and ratio scale, calculating distance, coordinates, etc. Feel free to share and subscribe. The mapwork section of Geography can be easy!

Views: 93539
Fish

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The ratio and scale factor of two triangles are directly related in a few specific ways. Find out about the relationship between the ratio and scale factor of two triangles with help from an experienced math tutor in this free video clip.
Expert: Ryan Malloy
Filmmaker: Patrick Russell
Series Description: High school mathematics doesn't just stop being useful once you've finished your class work for the day. Find out how to understand and use high school mathematics with help from an experienced math tutor in this free video series.

Views: 4811
eHowEducation

Ratio when multiplied by the scale factor will give an equivalent ratio.

Views: 394
Anil Kumar

This video reviews the scales of measurement covered in introductory statistics: nominal, ordinal, interval, and ratio (Part 2 of 2).
Scales of Measurement
Nominal, Ordinal, Interval, Ratio
YouTube Channel: https://www.youtube.com/user/statisticsinstructor
Lifetime access to SPSS videos: http://tinyurl.com/m2532td
Video Transcript:
meaningful just like interval but it also has ratios that are meaningful and there is also a true zero point and by true zero point what we mean there is that zero means what we think of as zero typically or the absence of the property like 0 inches there is no length or what have you. OK so an example would be weight in pounds and here 10 pounds is twice as much as five pounds or other words 10 / 5 is 2 or 2 times as much. So that's a meaningful ratio and in addition to this zero pounds means no weight or an absence of weight so there's a true zero point. So if something is zero pounds that means it has no weight whatsoever. OK so now let's compare the scales and I think this is where you really can start to see some of the differences between these four scales more clearly as we really start to differentiate between them through examples. So interval vs ordinal we'll start there. Recall that our interval example was temperature and in that example a one degree difference is the same at all points of the scale that was our example of interval and then for ordinal we have the place in the race first, second, and third the difference in finishing between first and second now for ordinal is not necessarily and probably is not the same as the difference between second and third. Now you might say we'll wait a second the difference between first and second is 1 and the difference between second and third is 1 so that should be the same as interval. But what we need to think about here is to ask yourself let's say we're sitting there at the finish line and the person finishes in first and second those two let's say are neck and neck and the first place person just barely wins at the end and then along comes third place person much later so we have first the second neck and neck and then third comes along later let's say a minute later or something like that. So in this race the difference between first and second was very small but the difference between second and third was very large so those aren't equal intervals among the adjacent categories and that's why it's ordinal. So for this example it's ordinal because we know there's order to it 1st is better than 2nd, 2nd than 3rd but we can't say that those adjacent categories are equal. OK next interval versus ratio. Now the two qualities of ratio recall is that the ratios are meaningful and there's a true zero point, where zero means the absence of the property. Well think of temperature. Zero degrees how is it outside if you thought of zero degrees you wouldn't say there's an absence of coldness or heat outside you would say it's really cold, right? Zero degrees Fahrenheit it's 32 degrees below the freezing point so it's really cold. So zero does not indicate an absence of the property there and then in terms of the ratios if we think back to our ratio example with the weight of objects if I had a five-pound object and I had another five pound object and I put both those on the scale that would give me 10 pounds right total weight. But if I have a 40-degree day and I have another 40-degree day so a cold day and a cold day and I put both of those together I don't get suddenly a warm day 80 degrees. A 40-degree day and a 40-degree day is still a 40-degree day it doesn't suddenly equal an 80 degree day. So the ratio isn't meaningful there for temperature. So this is why temperature is interval and weight is ratio. OK and then finally let's take a look at nominal vs ordinal, interval, and ratio. So recall with our example of baseball uniform numbers the numbers only serve to differentiate between players. There is no order to them 25 isn't necessarily better than 23. There's no meaningful differences; I can't subtract 25-23 get a two and then my next number up let's say is 30 and 35 subtract 35 and 30 and get a 5 that doesn't make any sense. We wouldn't subtract uniform numbers and expect to get any meaning out of that and then ratios are not meaningful there's no true zero point. Think of someone who chose the number zero in baseball. That doesn't mean there's an absence of a baseball player there right zero means nothing that would just be a player with the number zero. So that's why baseball wouldn't be ordinal, interval, or ratio. Alright that's it for scales of measurement. Thanks for watching.

Views: 187600
Quantitative Specialists

Author: M.Arch Miroslav Popovic
SCALE MODEL PROCESS Beginning with the drawings of the plans, elevations, using books, pictures and videos of the existing buildings, to then carefully began the process of cutting, one by one, every single detail of the building by hand, and adding the finishing touches of color and texture as in the real ones.

Views: 30
Miroslav Popovic

Why is defining the correct level of measurement in SPSS important and what is the difference between Ordinal, Nominal and Scale.

Views: 22018
BrunelASK

Brewista's innovative Ratio Scale allows users to make perfect pour over coffee by calculating the water needed for pour over coffee based on the amount of coffee grounds used. With an Auto Mode and a Manual Mode, the Ratio Scale is simple to use and the coffee-to-water ratio settings are easily adjustable. This scale is unlike any other scale on the market - Brewista has designed the Ratio Scale as a tool to help those who wish to perfect their brew ratios by creating a scale that does all of the maths for you. It also features two timing bars on the LCD Display to show the desired pour rate and the actual pour rate, which helps the user pace their pour.
- Make perfect pour over coffee every time
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Video made by Brewista.
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Views: 74
But first coffee

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Refferences:
1. Tomkinson, Grant, Dyer, Makailah, "Finger Length Could Predict Athletic Ability." LiveScience, September 7, 2017.
2. http://www.sciencedirect.com/science/article/pii/0191886983900612
3. https://fingerlengthdigitratio.wordpress.com/tag/john-manning/
4. http://www.pnas.org/content/108/39/16289
===============================================
💋Instantly Determine Your Testosterone Levels With This “Finger” Test
===============================================
I get asked all the time, “is there a way to know my testosterone levels without doing a hormone test?”
I initially ask how do you feel? How are your erections? How is your energy levels?
But, there is a physical test that can give you some insight as to how your testosterone levels are, and that’s with the finger test.
Hold your right hand up in front of you as if you were trying to protect your face in a food fight. Now look at it….
Is your ring finger (the fourth finger, counting the thumb) considerably longer than the finger you point with (the second, “index” finger)?
If your ring finger is longer, consider yourself lucky. It seems that finger size, or more specifically, finger ratio, correlates strongly with “higher” testosterone levels, as well as better success in a variety of sports.1
As you see in the picture above, the one of the left side - the ring finger is longer than the index, “pointer” finger. This means higher testosterone levels.
Now you might think I’m making this up, but I’m not.
Scientists have long noticed that men’s ring fingers are generally longer than their index fingers. With women, it tends to be the reverse: their index fingers are usually longer.
They’ve called this difference in length between the index finger and ring finger the “2D:4D ratio.”
2D stands for “second digit” — that’s your index finger, and 4D means “fourth digit” — your ring finger. So if your index finger is 2.9 inches long and your ring finger is 3.1 inches long, you have a 2D:4D ratio of .935 (2.9/3.1 = .935).
A longer ring finger compared to your index finger is considered a “low 2D:4D ratio.”
Oddly enough, the ring finger seems to have a higher number of receptors for testosterone during early fetal development. Thus, the ring finger grows in proportion to the amount of testosterone produced.
The more testosterone produced, the lower the eventual 2D:4D ratio.
Interestingly, the 4th digit of the right hand is more sensitive to fetal testosterone than the ring finger of the left hand, so use your right hand to appraise your Testosterone levels.
A longer ring finger is merely a biomarker of high levels of fetal testosterone, and this early surge of testosterone is instrumental in influencing the growth of not only the brain and heart, but also muscle and bone, all of which are vital to sports performance.
However, I want to point out that even though this has been scientifically proven in 1980, 1998 and again in 2011.. This doesn’t necessarily indicate where your testosterone levels are right NOW.
Lifestyle (diet, exercise, stress management, supplements) and more importantly, aging - are bigger and indicators of where your TRUE testosterone levels are at this moment.
========================================
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Thank you for watching. Please feel free to comment, like or share with your friends.
Subscribe to Dr.Sam Robbins's official Youtube channel
http://drsam.co/yt/subscribe
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Thanks
DrSamRobbins

Views: 823218
Dr Sam Robbins

The three factors that determine the type of work a motor can produce are speed, torque, and horsepower. Speed is defined as how fast the motor performs its work. For example, a shaft can rotate slowly or quickly. The typical units of measurement for rotational motor speed are Revolutions Per Minute, or rpm.
See this and over 140+ engineering technology simulation videos at http://www.engineertech.org.
Simulations provided free under a Department of Labor grant awarded Eastern Iowa Community Colleges. To learn more visit http://www.eicc.edu.

Views: 438590
Engineering Technology Simulation Learning Videos

In this ImageJ tutorial basic analysis of any image like length and area measurement are demonstrated both by manual and thresholding process.
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Instructor: Santanu Mandal
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If fuel, battery backup power or batteries are required, make sure the system can run for the required time and chargers are available. Document how to operate these systems and mark the locations of controls. Make sure the information is available during an emergency. Many of these systems also require periodic inspection, testing and maintenance in accordance with national codes and standards. Train staff so a knowledgeable person is able to operate systems and equipment. Materials and Supplies. Be sure to compile a list of available resources using the Emergency Response Resource Requirements and Business Continuity Resource Requirements worksheets as a guide. External Resources. Preparing for an emergency, responding to an emergency, executing business recovery strategies and other activities require resources that come from outside the business. If there were a fire in the building, you would call the fire department. Contractors and vendors may be needed to prepare a facility for a forecast storm or to help repair and restore a building, systems or equipment following an incident. The following external resources should be identified within plan documents. Include contact information to reach them during an emergency and any additional instructions within the preparedness plan. Public Emergency Services. Contractors and Vendors. Partnerships.