(855) 4-ESSAYS

Type a new keyword(s) and press Enter to search

CELLULAR MANUFACTURING


              Group/Cell layout: machines are arranged as cells. Each cell is capable of performing manufacturing operations on one or more families of parts Consequently, the capacity of a cell can be determined by considering only the families of parts that utilize that cell. As a result, this layout should be easier to manage. This is just one reason why a group layout may be more desirable. .
             .
             D=drill.
             L=lathe.
             M=mill.
             G=grinder.
             (A).
             .
             (B).
             .
             .
             (C).
             Figure 1. Basic ways to arrange machines in a factory .
             .
             2.2Machine layout examples .
             Six -Machine Test Problem .
             This problem is extracted from the mechanical room layout proposed by Eastman .
             (1972) . .
             Figure 2 shows a plan of mechanical room. .
             Inside the room must be located the six machines shown. .
             You are to arrange the machines in the room so as to satisfy the following rules: .
             1. Machines 1 and 2 have control lights on their long face. Their long face must be visible from the door. .
             2. Machine 3 gives off spark. Its long side must not be visible from the door. .
             3. Machine 1 and 3 are connected and must be less than 1 ft apart. .
             4. Machine 4 passes hot water to machines 2 and 5. Machine 4 must be adjacent to them. .
             5. Machine 2 and 6 are connected by a flexible cable and must be less than 2 ft 6 in. apart. .
             6. All machines must be accessible from the door with the pathway being 2 ft wide. .
             7. All machines shall be located with a long side against a wall.
             .
             .
             Figure 2. Plan of mechanical room.
             This problem is of interest because it involves preference satisfaction as the sole criterion and no consideration is given to the traveling cost. However, the following procedure explains how each rule was addressed by the proposed to solve the problem. Rules 1, 6 and 7 are accounted for by defining multiple location preferences for possible locations of each machine. Rule 2 is addressed by defining an area that will serve as location restriction for machine 3 (shaded area in figure 3).


Essays Related to CELLULAR MANUFACTURING

1. Digital World of Cellular

Usefulness of the Digital Cell Phone The digital cellular phone offers many advantages to today's society. ... Most common digital cellular systems use Frequency Shift Keying to send data back and forth. ... Design of Digital Cellular Network Cellular Network The cellular network is web of towers covering areas, generally thought of as hexagonal cells as shown in APPENDIX A Figure 1. ... As more people join the cellular world, companies are quickly adding more towers to accommodate them. ... It is a unique 32-bit number programmed into the phone when it is manufactured. ...

  • Word Count: 4689
  • Approx Pages: 19
  • Grade Level: High School

2. Five Kingdoms

The Protist Kingdom is basically all the multi cellular organism which don't fit into the Animal, Plant, or Fungus Kingdom. ... The Kingdom Protista include the one-celled or multi celled heterotrophs (protozoa); eukaryotic algae, including some that are multi cellular; and slime molds. ... Plants, kingdom Plantae, are distinguished from animals, by being stationary, by manufacturing their own food, and by having a continuous type of growth that is readily modified by the environment. ... In the five-kingdom system, a plant is defined as being multi cellular and eukaryotic, or with a...

  • Word Count: 782
  • Approx Pages: 3
  • Grade Level: Undergraduate

3. Motorola

By the mid-1980s, cellular phone systems had taken off and Motorola was the top company in the market. ... Motorola has issued contracts to Bush Industries to develop and manufacture decorative faceplates in a variety of colors and designs that mobile telephone users can snap onto their cellular telephone. ... Motorola has been in business for over 70 years and has had numerous manufacturing facilities around the world. The company is involved in environmental cleanups at ten current and former manufacturing facilities, six of which are complete. ... Outside the United States, Motorola works w...

  • Word Count: 1805
  • Approx Pages: 7
  • Grade Level: Undergraduate

4. Nokia

NOKIA AND THE CELLULAR PHONE INDUSTRY An Introduction The case is situated in the spring of 1994 when Nokia just finished a successful year with an increase of more than 70 % of the profits and forced to many of their competitors to shut down or sell out. The phone industry was increasing with a presence on more than 90 countries with cellular services. With the support of the Nordic governments of this area was the first to establish cellular services, with a penetration rate of up to 10% and other countries adapt these technology (like France, Spain and Austria among others). ... ...

  • Word Count: 457
  • Approx Pages: 2
  • Grade Level: High School

5. Alcatel

It is planned to develop new cellular phones-but only for corporate customers. 4. ... Except cellular phones, Alcatel only manufactures producer goods. ... It plays a leading role in the convergence of voice and data communication as well as telephone and cellular phone. ... Cellular phones, internet and e-commerce will be the driving force with the highest growth. ... Furthermore, the company is planning to develop new cellular phones- only for corporate customers. ...

  • Word Count: 1307
  • Approx Pages: 5
  • Grade Level: High School

6. Microwaves; cell phone dangers

The Cellular Telecommunications Internet Association(CTIA) has been conducting research since 1994 on cell phone dangers. ... The paper published by the research group states that repeated exposure to cell phone acts as repetitive stress, leading to continuous manufacture of heat shock proteins within cells: Heat shock proteins are always present in cells at a low level, but are manufactured in larger amounts when the cell is stressed by heat or other environmental factors. ... If you have a cell phone, I believe you should go out and buy a headset piece, which are made by most mobile phone ...

  • Word Count: 349
  • Approx Pages: 1
  • Grade Level: Undergraduate

7. The Invention of a Walkie Talkie

If you have used a cellular telephone or the door control of the garage at some time, it has been thanks to Al Gross. ... His other inventions include the basics of cordless and cellular telephony. ... He also launched Citizens Radio Corporation to design, develop and manufacture personal wireless devices. ... Cellular phone companies such as Nextel Communications has also adopted the use of the walkie-talkie in a more advanced version which they call direct connect. ... The Direct Connect feature still relies on cellular technology to connect to the recipient. ...

  • Word Count: 643
  • Approx Pages: 3
  • Grade Level: High School

8. Gallium Arsenide

However, because the insulating gate oxide layer is not present, the current always is on, and cellular phones and base stations require two voltage sources. Because of the lower power consumption of gallium arsenide MOSFETs, the talk time for cellular phones would be extended. ... That's because only a few thousand transistors are needed for a cellular phone chip, compared to tens of thousands in microprocessors. ... Gallium arsenide is used in the manufacture of light-emitting diodes (LEDs), which are found in optical communications and control systems. Gallium arsenide can replace ...

  • Word Count: 1699
  • Approx Pages: 7
  • Grade Level: Undergraduate

9. eucaryotic animal cell

There are two major categories of cellular organization in eucaryotic cells. ... The nucleus is made of DNA and chromosomes and it controls cellular activities via the genes. ... The function of all ER is transportation and the manufacture of molecules (anabolism). ...

  • Word Count: 608
  • Approx Pages: 2

Got a writing question? Ask our professional writer!
Submit My Question