@ Sudhanshu and group:
- Is it possible to transmit HD through unguided transmission medium?
- How is energy lost during attenuation?
- What is meant by analog conversion and where is it used?
@ Mohammed reza and group:
- What is the difference between static and dynamic IP in a network? What is the advantage of the same?
By-
CC 18
- Sharath.Babu
- Sushma rao
- Rakshita Shetty
- Vatsal Doshi
- Sahana P
5 comments:
diffrence between static and dynamic IP:
static IP = never changes
dynamic = does change
to me, the only people that would benifit from a static IP are those who run webservers (but from an adsl connection) or ftp servers or game servers regularly.
if you just use the net to surf the net and get email, play some games.. then static isnt going to be of any benifit.
A3-An analog-to-digital converter is a device which converts continuous signals to discrete digital numbers. The reverse operation is performed by a digital-to-analog converter (DAC).
Typically, an ADC is an electronic device that converts an input analog voltage (or current) to a digital number proportional to the magnitude of the voltage or current. However, some non-electronic or only partially electronic devices, such as rotary encoders, can also be considered ADCs. The digital output may use different coding schemes, such as binary, Gray code or two's complement binary.
BY SHIVAM DUBEY(SUDANSHU TEAM).CC19.
A2-Attenuation coefficients are used to quantify different media according to how strongly the transmitted ultrasound amplitude decreases as a function of frequency, besides the medium length and attenuation coefficient, attenuation is also linearly dependent on the frequency of the incident ultrasound beam. Attenuation coefficients vary widely for different media. In biomedical ultrasound imaging however, biological materials and water are the most commonly used media. The attenuation coefficients of common biological materials at a frequency of 1 MHz are listed below:
Material α(dB / (MHz * cm))
Lung 41
Bone 20
Kidney 1.0
Liver 0.94
Brain 0.85
Fat 0.63
Blood 0.18
Water 0.0022
There are two general ways of acoustic energy losses: absorption and scattering, for instance light scattering. Ultrasound propagation through homogeneous media is associated only with absorption and can be characterized with absorption coefficient only. Propagation through heterogeneous media requires taking into account scattering.BY SHIVAM DUBEY(SUDHANSHU TEAM).CC19.
A static IP address is an address that does not change over time unless changed manually. It is used when you need the IP address or network location to remain the same consistently. A good example of this is for a web server. If you go to www.google.com you are really going to the IP address of 66.102.7.99.
A Dynamic IP address is an address that keeps on changing. It is mostly used when having a consistent IP address is not necessary. An example of this would be the IP address your ISP .
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