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Engineering

Engineering is an art and profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life.

5,839 Questions

Important factors that can be used to comparing the various digital-to digital encoding schemes?

A lack of high-frequency components means that less bandwidth is required for transmission. In addition, lack of a direct-current (dc) component means that ac coupling via transformer is possible. The magnitude of the effects of signal distortion and interference depend on the spectral properties of the transmitted signal. Clocking: Encoding can be used to synchronize the transmitter and receiver. Error detection: It is useful to have some error detection capability built into the physical signaling encoding scheme. Signal interference and noise immunity: Certain codes exhibit superior performance in the presence of noise. Cost and complexity: The higher the signaling rate to achieve a given data rate, the greater the cost. Some codes require a signaling rate that is in fact greater than the actual data rate

What is bauxite used for?

Bauxite is used in cement, chemicals, face makeup, soda cans, dishwashers, siding for houses, and other aluminum products. It is recycled so that it can be used over again.

How do engineers use the quandratic formula?

Law of motion is quadratic equation and is use in calculate of object trajectory. Fluid dynamic for sizing of pump is also second order equation. Quadratic equation or higher may use to fit equation for fast calculation of result.

Example on vapour density equation for the use of evaporative mass transfer. We do need to know how much water air can take. It could use the data from table but the work will be lengthly. We can make data in the table a form of polynomial equation and so put it into program for calculated out this require vapour density.

Are thrust loads at a right angle to a shaft?

On a ships propeller shaft, the thrust will be in line with the axis of the shaft.

What is enigma machine made of?

the 44clc contributes nfk 1000 to simpplify the cartrige for the uspm nitoxide diamiter of synthesizing the quadralic hydronesiem

What disadvantages are there to using parametric equations instead of numeric values?

Actually, there really are not any. In mechanics, in order to understand problems, everything is broken up into components in order to better understand what is going on. Parametric equations allow physicists to examine individual forces within a problem. Most prefer parametric equations to numeric values.

Without a table or graph, you might forget what an equation represents.

What is crc copper block weld?

It is liquid glass and copper filaments (for reinforcement). I used it in my 1998 Nissan sentra that had a blown head gasket and after 25k mi it still runs like a champ.

Be sure to flush radiator and change oil before using. Flush coolant really well.

Where did Dr Percy Spencer invent the microwave?

Raytheon Corporation, where he was actually trying to invent some kind of appliance for the war.

What actually happens when load is applied to the beam and why does this condition occur?

the beam gets bend if the load is more then the resisting force of the beam and if the resisting force is more then the load it doesn't bends.

Use of thorium and yttrium in lantern mantles?

Yes, thorium is used in gas mantles; the intensity of the light is increased.

Which protocol is used for serial communication?

There is a wealth of protocols used with serial communication. For example, USB, SATA, or Firewire are all well-established serial protocols, mostly aimed at master-slave communications between a master device and peripherals.

RS-232 (EIA-232) or RS-485 are probably expected to be included in this listing, as they are very long-standing serial forms of communication and typically combined with the . In the context with protocols, it is however important to note that these only define the physical layers, the means of moving one byte from A to B, but do not define any of the logical layers (how to interpret the data).

Most network adapters such as an Ethernet adapter work serially (bits are transmitted and received one by one, not multiple at the same time), so these could be considered a serial protocol.

Countless other forms of asynchronous and synchronous serial communication exists and are in use.

How do telephony companies monitor the broadband download of their customers?

Usually its done via SNMP. A device(s) within the network tracks the packets/bytes and this information can be retrieved by the core network via SNMP GET. There are also other devices that integrate AAA and a flow monitoring device to report more accurate information.

What equations link angular and linear momentum If you exert a force on a free floating body it will have angular and linear momentum In what proportions and how are they linked?

angular momentum = linear momentum (of object) x perpendicular distance (from origin to the object)

where x stands for cross product.

angular momentum = mv x r (perpendicular dist.)

Functional and non functional requirements of web search engine?

There are many functional and non functional requirements of a web search engine. The non functional requirements would be the design you see, while the functional requirement would be the search bar.

What materials are used in mechanical jacks?

If we consider the friction or screw jacks used to lift a vehicle to change a flat, almost all of those are made entirely of metal (steel). In the case of hydraulic jacks, they are made largely of steel, and have rubber for seals and hydraulic fluid to provide the media to perform the hydraulic work.