Showing posts with label Industrial. Show all posts
Showing posts with label Industrial. Show all posts

The History Of Industrial Engineering

Quaker State Oil Change Locations - The History Of Industrial Engineering.
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The Accreditation Board for Engineering and Technology defines industrial engineering as: the profession in which a knowledge of the mathematical and natural sciences gained by study, experience and practice is applied with judgment to develop ways to utilize economically, the materials and forces of nature for the benefit of mankind concerned with the design, improvement and installation of integrated systems of people, materials, equipment and energy. It draws upon specialized knowledge and skill in the mathematical, physical and social sciences together with the principles and methods of engineering analysis and design to specify, predict and evaluate the results to be obtained from such systems.

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How is The History Of Industrial Engineering

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History

The origins of industrial engineering can be traced back to many different sources. Fredrick Winslow Taylor is most often considered as the father of industrial engineering even though all his ideas where not original. Some of the preceding influences may have been Adam Smith, Thomas Malthus, David Ricardo and John Stuart Mill. All of their works provided classical liberal explanations for the successes and limitations of the Industrial Revolution.

Another major contributor to the field was Charles W. Babbage. a mathematics professor. One of his major contributions to the field was his book On the Economy of Machinery and Manufacturers in 1832. In this book he discusses many different topics dealing with manufacturing, a few of which will be extremely familiar to an IE. Babbage discusses the idea of the learning curve, the division of task and how learning is affected, and the effect of learning on the generation of waste.

In the late nineteenth century more developments where being made that would lead to the formalization of industrial engineering. Henry R. Towne stressed the economic aspect of an engineer's job. Towne belonged to the American Society of Mechanical Engineers (ASME) as did many other early American pioneers in this new field. The IE handbook says the, "ASME was the breeding ground for industrial engineering. Towne along with Fredrick A. Halsey worked on developing and presenting wage incentive plans to the ASME. It was out of these meetings that the Halsey plan of wage payment developed. The purpose was to increase the productivity of workers without negatively affecting the cost of production. The plan suggested that some of the gains be shared with the employees.. This is one early example of one profit sharing plan.

Henry L. Gantt belonged to the ASME and presented papers to the ASME on topics such as cost, selection of workers, training, good incentive plans, and scheduling of work. He is the originator of the Gantt chart, currently the most popular chart used in scheduling of work.

hat would Industrial Engineering be without mentioning Fredrick Winslow Taylor. Taylor is probably the best known of the pioneers in industrial engineering. His work, like others, covered topics such as the organization of work by management, worker selection, training, and additional compensation for those individuals that could meet the standard as developed by the company through his methods.

The Gilbreths are accredited with the development of time and motion studies. Frank Bunker Gilbreth and his wife Dr. Lillian M. Gilbreth worked on understanding fatigue, skill development, motion studies, as well as time studies. Lillian Gilbreth had a Ph.D. in psychology which helped in understanding the many people issues. One of the most significant things the Gilbrethss did was to classify the basic human motions into seventeen types, some effective and some non-effective. They labeled the table of classification therbligs. Effective therbligs are useful in accomplishing work and non-effective therbligs are not. Gilbreth concluded that the time to complete an effective therblig can be shortened but will be very hard to eliminate. On the other hand non-effective therbligs should be completely eliminated if possible.

In 1948, the American Institute for Industrial Engineers (AIIE), was opened for the first time and began to give a professional authenticity for the practicing engineers. Up to this time industrial engineers really had no specific place in the hierarchy of a company. The ASME was the only other society that required its members to have an engineering degree prior to the development of the AIIE.

What is the future for Industrial Engineers? With analytical methods and the advancing technologies for the computer, modeling complex production and service systems will become more and more an every day task.

Performing a motion study. Every job can be broken down into its' fundamental work elements. The Gilbreth family found that there are seventeen of these motions. The time to complete each motion does not change. Jobs can be studied visually or through the assistance of a camera for micro-motion studies.

The environment for the workers also needs to be set up to promote efficiency of work. Tools should be placed in fixed locations to eliminate the search and selection therbligs. Work surfaces and chairs should be adjusted to the correct working heights to eliminate stress. Whenever possible, gravity feeders should be used to deliver parts to the correct location. The worker's tools should be designed to eliminate multiple cuts. Adjustment handles should be designed to maximize the operator's mechanical advantage.

Performing a time study. Without a standard the company will find it hard to estimate lead-time on their products. Times very greatly when the employee does not know what the expectation of company is. In order to correct this problem the IE will develop a fair standard expectation for each operation. It has been estimated that 12% of a company's total cost comes from direct labor. Another 43% of cost comes from the material cost. The other 45% is spent in overhead. So the idea that the largest productivity gains can be felt on the floor does not hold up in this light. A good time study will take into account the unavoidable delays, fatigue, and to an extent, outside interferences. Time for wasteful steps, such as searching for tools, will not be included in the final standard. The expectation is that the workplace will be designed to accommodate the work and will be free from this type of waste.

Set-Up Times Set up time is the amount of time it takes to begin producing different parts on a machine. If set-up times remain large the company will operate with high levels of work in progress and finished goods tying up the companies valuable capital. Companies that fail to reduce their set-up times have a tendency to look sluggish in regards to their customers.

Cost An IE will generally be responsible for coming up with a cost analysis on the equipment purchase. There are a several ways of coming up with this. Lifehow long the machine is expected to last when developing the cost analysis.

Efficiency The traditional way of looking at efficiency was to keep the machine running at a 100% The idea was the cost of the machine could be spread out over the amount of time it was kept running. The higher the machines efficiency, time running / time available, the better the accounting numbers looked in regards to machine cost.

Material The IE is concerned with the delivery and flow of material throughout the plant, often the plant has evolved as the company has.

Lot size To allow the manufacturer to stay flexible the production lot sizes should be minimalized. This will only be economical after the reduction of machine set-ups have been achieved.

Inventory Levels Since inventory is capital that cannot be converted until finished and purchased by a consumer, it should be kept to a minimal. Inventories not only tie up capital but if the customer requests a change then the inventory runs the risk of becoming obsolete.

Quality The quality of the material can affect all parts of the system. Poor quality material often introduces excessive amounts of rework into each of the processes. A typical job for an IE would be to work with the quality department to set up a Quality Management system QMS.

Maintenance The amount of maintenance that the machine is going to require is a variable that must be considered. Another issue about maintenance is whether or not the staff on hand will need to be retrained.

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How to Make Your Breasts Look Bigger

Oil Change Locations - How to Make Your Breasts Look Bigger

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Having a well-filled breast is almost every woman's dream. In a society like ours where having big breasts is adored and given such emphasis, it is not surprising that every flat-chested woman desires to be well-endowed. Various breast enhancement products have come to the forefront that promise to give fuller breasts. But there's no proof that they really work. "If these estrogens were powerful enough to be effective, the creams wouldn't be available over the counters," notes Seth Matarasso, M.D., an associate clinical professor of dermatology at the University of California, San Francisco. "No pill can safely increase your breast size," says Kelly Shanahan, ob/gyn and author of Your Over-35 Week-by-Week Pregnancy Guide. While nothing short of surgery will make your boobs look like that of Pamela Anderson's, there are less invasive options that can make a difference. Here's the ultimate guide to beautiful breasts at any age.

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1. Exercise

Okay, so exercise won't add inches to your breasts. Breasts are largely fatty tissue and there's no exercise to grow fat. But exercise can make your breasts sit higher and more even on your chest because it builds up pectoral muscles directly below the breasts. This pushes the breasts outward giving them the appearance of being a bit larger. If you strengthen your back muscles, you can also improve your posture and make your chest look a hundred times better. Try to do the following exercise everyday to increase your breast size naturally and to firm them up:

a. The Push-ups:
This will help keep your chest muscles firm and toned. To do this, put your hands and knees on the floor with your back flat. Align your hands with your bust. Bend your arms and lower yourself until your chest almost touches the floor. Then push yourself back up to the starting position. Hold this pose for a few seconds and then bend your arms again bringing your torso down a few inches to the floor. Repeat this ten times. On the second week, perform two full sets of ten repetitions. And on the third week thereafter, do three full sets every other day.

b. Modified Push-ups

This is akin to the push-ups mentioned earlier. The only difference is that instead of the hands and knees on the floor, the lower arms, the elbows and toes are placed against the floor. The torso is raised up but your lower arms and elbows and toes are kept on the floor.

c. The back extension

Back extensions strengthen your upper and lower back muscles, thus improving posture. To do this, after each set of push-ups, lie facedown on the floor, lift one arm and the opposing leg a few inches straight in the air simultaneously, and hold on for a count of ten. Do the move twice on each side.

d. Bench Press:

This is the best exercise for shaping and firming your bust line because aside from shaping and firming the bust line, it also sculpts the shoulders and tightens the triceps. To perform this exercise, lie flat on a bench, with one foot on each side of the bench touching the floor. Firmly press your head, shoulders, back and butt on the bench while sticking up your chest. Keep the dumbbells about 18-20 inches apart and parallel to the floor with your palms facing upwards. Slowly push the dumbbells straight up, away from your chest. Fully extend your arms but don't lock your elbows when arms are fully extended. The dumbbells should now be approximately a few feet above your chest. Pause slightly at the top of the movement then slowly lower the dumbbells back down to the starting position. Inhale and hold your breath as you lower the dumbbells. When they reach the chest, begin to move the weight upward again. Exhale as you pass the point of greatest resistance. Repeat this 8 to 12 times to complete one set. You can perform about 1 to 3 sets at a session and about 3 sessions per week with a day's rest between sessions.

e. Breast Press

Using two three-to-five pound dumbbells, sit on the edge of a chair with your back straight, arms at your sides. Lean forward slightly at your hips, and bend your elbows to 90 degrees, keeping the palms down. Raise your arms from the shoulders so your elbows reach shoulder level, your hands in front and to each side. Hold this position for a count of four, and then return to your start position. Repeat this ten times.

f. Arm Swings

While standing erect, swing your right arm clockwise for eight counts while the left arm rests at your side. Then let your right arm rest at your side and swing your left arm clockwise also for eight counts. Repeat this exercise on both arms only this time the movement is counterclockwise.

g. Stand-up Push-ups

Stand facing a wall at arm's length. Place palms on the wall. Push against the wall as if you were pushing it away, without bending arms at the elbow. Hold for eight counts and relax arms for eight counts. Repeat this eight to twenty times a day.

h. Apply Pressure

Massage the upper and outer area of your bust in circular motions applying gentle pressure. This helps stimulate circulation on the muscles and help tone the fatty tissue of the breasts.

2. The Perfect Boosting Bra

If your boobs appear sacked out on your rib cage or distinctively lopsided, maybe the problem is your bra. You'll get the sexiest support if you look for the following features:

a. Supportive cups

"If your breasts are saggy, they'll sit in the bottom of the sheer cup," says Stacey Ellis, a bra-fit specialist for Nordstrom. Look for a bra with lined cups that are slightly firm to touch.

b. A firm, solid back

Flimsy cotton and lace may not be strong enough to pull your breasts up. A bra with a wide, tightly woven back will help hoist you up in front.

c. Underwire

Underwire bras give a good lift to your busts because they provide good support underneath. Just make sure the wire surrounds the breast tissue and is a perfect fit to your breasts otherwise you'd be uncomfortable to wear them.

d. Padded bra

Padded bras don't just make your breasts appear bigger but they also provide added protection to your breasts from accidental nudges in public and crowded places.

3. Nutrition

Nutrition is one of the factors that influence the growth of breasts.
How you look reflects the things that you put in your body. If you want your breasts to look good, I recommend you exercise healthy food choices. Include fresh fruits and vegetables in your diet. Women with poor diets tend to have smaller breasts while women who are overweight tend to have larger breasts. Also add Til or sesame seeds in your intake. They are known to be effective in firming the breasts of women because they contain calcium, protein, iron and phosphorous. The oil also can be applied on the breast to make it look less droopy.

Although having well-filled breasts makes a woman feel more confident about herself, the lack of breast tissue does not make her less than a woman. Beauty is not gauged on breast size alone. The truth is, most women look pretty in their own ways. But one of the biggest things that makes a person attractive is a positive attitude towards oneself and other people. People are easily drawn to women who exude such compelling influence, no matter what size of breasts they have. So, if you want to attract more people, don't just focus on having bigger breasts and wanting what you don't have, instead work your way up with your self-esteem. At any rate, you will realize that you will be happier with a bigger self-esteem than a bigger boobs.

© 2005 Rachelle Arlin Credo. All rights reserved.

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