Now U Can Prevent Cancer from Mobile phones

Now U Can Prevent Cancer from Mobile phones ..Can You Plz Follow below while Using ur Mobile phones

Use a headset. Sounds obvious, but headsets emit much less radiation than cell phones do, according to the Environmental Working Group (EWG), and they keep your cell phone away from your head. The farther away you are from a source of radiation, the less damage it can do.

Text when you can. Your constantly texting teens are onto something: Cell phones use less energy (and emit less radiation) when you text than when you talk, says the EWG. Texting also keeps the radiation source farther away from your brain.

Use cell phones for FYI-only calls. Don’t use your cell phone for that long overdue, hour-long catch-up with your sister. Keep calls as short as possible — Do you need me to get the dry cleaning, honey? — and switch to a landline if they’re veering off into chitchat territory.

Watch the bars. Can you hear me now? If you’re struggling to maintain a connection, ditch the call and wait until you have better service. When your phone has fewer signal bars, it has to work harder (and, therefore, emit more radiation) to connect.

Keep the phone away from your ear when you can. EMF-Health.com recommends waiting for the call to connect before you bring the phone to your ear, which minimizes radiation exposure. And when you talk, tilt the phone away from your ear and bring it in close when you’re listening. That’s because the radiation levels are “significantly less when a cell phone is receiving signals than when it is transmitting,” Lin Zhong, assistant professor of electrical and computer engineering at Rice University in Houston, told The New York Times .

Don’t make calls in elevators or cars. You already it’s dangerous to talk and drive; EMF-Health.com says that cell phones use more power to establish a connection in enclosed metal spaces like cars and elevators.

Make sure your kids use the landline. It seems like even toddlers are using cell phones today, but experts say kids are the mostvulnerable to potential radiation dangers. The EWG says children’s brains absorb twice as much cell phone radiation as adults. According to The New York Times , health authorities in Britain, France, Germany, and Russia all have warnings against letting children use cell phones.

Buy a low-radiation phone. Some cell phones emit more radiation than others; if you’re in the market for a new phone, EMF-Health.com recommends that you consider the phone’s SAR (specific absorption rate), a way of measuring the radiation absorbed by the body. It’s usually listed in the phone’s instruction manua

India's first monorail service will start operations in just six months.

Once completed, the Mumbai Monorail will be world's second longest Monorail corridor. Construction began in January 2009, and the first portion of the first line is scheduled to be operational by August 2012.

While Section 1 from Jacob circle - Wadala will be 11.28 km, section 2 from Wadala - Chembur wil be 8.26 km.

The section 1 wil be covered in 25 minutes and section 2 in 19 minutes. The design speed is 80 km/hr.Each monorail service will have four coaches can carry more than 500 passengers.

Malaysia-based Scomi Engineering has joined hands with Larsen & Toubro to execute the Rs 2,716 crore (Rs 27.16 billion) project.

Dr. Jonas Salk

How many of us know this guy?

Well before you go on to find who he is, first thank him. Thank him for what? for saving your life. Well he is Dr. Jonas Salk the Inventor of Polio Vaccine. His invention may or may not be a great thing, but whats great about him is he did not patent the vaccine and make personal profit. If he had patented the vaccine, he would have been a very rich man but millions of poor children would have been deprived of the life saving vaccine. When he was asked in a televised interview who owned the patent to the vaccine, Salk replied: "There is no patent. Could you patent the sun?". The world celebrates bill gates, steve jobs, etc for giving us high tech gadgets, but here is a man who has saved many of our lives but we don’t even remember him now, How sad.

Learn how to say 'no'

Have you ever:

~ Been miserable at a party?
~ Felt like throwing up after a delicious meal?
~ Wanted to hang up on your best friend?
~ Felt like raging away at your partner?
The unpleasantness experienced in each of the above situations could have been avoided, if only you had taken a judgement call and said 'no' to someone:
~ 'No, I don't feel like coming to the party. I'd rather stay home and read a book.'
~ 'No, I'm really full. I don't think I can eat another morsel.'
~ 'No, truly, I have a headache and was lying down. I'll talk to you later.'
~ 'No, I don't want to visit your friends. I'd rather hang out with mine today.'
Saying 'no' at the right time and in the right way can save you the trouble of indulging in activities you'd rather avoid. Brenda D'Souza, a teacher from Mumbai says, "I feel that people should live as they choose -- that's why I never said no to anyone. Everyone around me then started taking me for granted, even the children at school."
Brenda realised she was doing more than her fair share of work -- she was correcting more papers than other teachers, she was toiling endlessly at home and she was running around doing chores for her extended family too.

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That's when a friend told her to rationalise. "She told me I have to learn to say 'no' to people," she recollects, "I was losing weight and developing health concerns. I explained to everyone around me that I needed to have some time to myself."
Initially people thought she was being selfish, but soon the thought gave way to concern and eventually acceptance. "Now I am much happier. I do only what is possible. I do not extend myself to keep others around me happy," she asserts.
Most people who have trouble turning down others when they are inclined to do so think that they are being selfish, or displeasing and hurting the opposite party when they say 'no'. Often, however, saying 'no' works better for both the parties in question.
Bhavana Premji* recollects an incident where saying 'no' helped her out of a sticky situation. "I was in college then. There was this friend who liked me. He'd proposed love to me many times but I was not interested in him. I cared very much for him as a friend, however and so I didn't give him a clear reply," she recalls.
One day her parents saw her with this guy. "I explained the situation to my parents. They told me to make up my mind. If I really liked the guy I should say so, or else I should tell him that I wasn't interested in anything beyond friendship. I was really upset. I didn't like him in that way, but I didn't want to say no. I didn't want to hurt him. He was a good friend."
However, Bhavana did say no to him eventually. "He took it very badly. He thought I was just playing hard to get. It took me two years to convince him that I really wasn't interested in him. Eventually, when he got the message he broke down. There was some girl in his class who got friendly with him then. She helped him get over me. Today they are happily married."
Bhavana feels and rightly so, that if she had not said no then, she and her friend would have both ended up unhappy.
Overdoing your 'no's
While there are those who have trouble saying 'no' even once in a while, there are others who tend to overdo them. They get into the habit of turning down everyone who poses them a question. "I have a colleague who says 'no' to everything," says Rekha [Images] Samant from Pune. "He is a very diligent worker, but because of his habit no one wants to team up with him on projects."

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Rekha believes that if only her colleague changed his attitude, he would be a very valuable resource to the organisation. "Everyone knows he does good work but because of his constant 'no's people get put off," she explains.
Strike a balance
The correct thing, then, is to be balanced about your 'no's. While a 'no' is very assertive, be cautious of where and how you use it. For some who still are not comfortable saying a direct 'no', here are a few alternatives:
~ 'You need to excuse me. I have to...'
~ 'Let me think about it. However...'
~ 'I'm a little busy at the moment...'
~ 'I would rather decline...'
~ 'I know someone else who can help you...'
Practice saying 'no'
There are situations where you cannot avoid a 'no'. If it is difficult for you to say so, here's what you can do:

~ Before confronting a situation where you know you will have to say 'no', practice saying it in front of a mirror, at least five times. Remember to smile when you do.
~ Say 'no' to telemarketers without hesitation if you don't require their services.
~ Say 'no' at least once a day to something you're not agreeable to.

BiCMOS Technology

The need for high-performance, low-power, and low-cost systems for network
transport and wireless communications is driving silicon technology toward higher
speed, higher integration, and more functionality. Further more, this integration of
RF and analog mixed-signal circuits into high-performance digital signal-
processing (DSP) systems must be done with minimum cost overhead to be
commercially viable. While some analog and RF designs have been attempted in
mainstream digital-only complimentary metal-oxide semiconductor (CMOS)
technologies, almost all designs that require stringent RF performance use bipolar
or semiconductor technology. Silicon integrated circuit (IC) products that, at
present, require modern bipolar or BiCMOS silicon technology in wired
application space include the essential optical network (SONET) and synchronous
digital hierarchy (SDH) operating at 10 Gb/s and higher.  
The viability of a mixed digital/analog. RF chip depends on the cost of making the
silicon with the required elements; in practice, it must approximate the cost of the
CMOS wafer, Cycle times for processing the wafer should not significantly exceed
cycle times for a digital CMOS wafer. Yields of the SOC chip must be similar to
those of a multi-chip implementation. Much of this article will examine process
techniques that achieve the objectives of low cost, rapid cycle time, and solid yield.

Electromagnetic bombs

Electromagnetic bombs are Weapons of Electrical Mass Destruction with
applications across a broad spectrum of targets, spanning both the strategic and
tactical. As such their use offers a very high payoff in attacking the fundamental
information processing and communication facilities of a target system. The
massed application of these weapons will produce substantial paralysis in any
target system, thus providing a decisive advantage in the conduct of Electronic
Combat, Offensive Counter Air and Strategic Air Attack. Generators would be
useless, cars wouldn’t run, and there would be no chance of making a phone call.
In a matter of seconds, a big enough e-bomb could thrust an entire city back 200
years or cripple a military unit. The basic principle used in an e-bomb is
electromagnetic pulse effect
EMP effect can result in irreversible damage to a wide range of electrical and
electronic equipment, particularly computers and radio or radar etc. having military
importance. Commercial computer equipment is particularly vulnerable to EMP
effects.The technology base which may be applied to the design of electromagnetic
bombs is both diverse, and in many areas quite mature. Key technologies which are
extant in the area are explosively pumped Flux Compression Generators (FCG),
explosive or propellant driven Magneto-Hydrodynamic (MHD) generators and a
range of HPM devices, the foremost of which is the Virtual Cathode Oscillator or
Vircator.

Abbreviations used in Electronics

Abbreviations used in Electronics A to Z

A (amp) Ampere AC Alternating current AC/DC Alternating current or direct current A/D Analog to digital ADC Analog-to-digital converter AF Audio frequency AFT Automatic fine tunung AFC Automatic frequency control AFC Automatic flow controller, used in controlling the flow of gasses under pressure into a vacuum system AGC Automatic gain control Ah Ampere hour Ai Current gain AM Amplitude modulation AM/FM Amplitude modulation or Frequency modulation AMM Analog multimeter antilog Antilogarithm Ap Power gain apc Automatic phase control Av Voltage gain AVC Automatic volume control AWG American wire gauge B Flux density BCD Binary coded decimal bfo Beat frequency oscillator BJT Bipolar junction transistor BW Bandwidth c Centi (10-2) C Capacitance or capacitor CAD Computer aided design CAM Computer aided manufacture CATV Cable TV CB Common base configuration CB Citizen's band CC Common collector CE Common emitter cm Centimeter cmil Circular mil CPU Central processing unit C (Q) Coulomb CR cr Junction diode CRO Cathode ray oscilloscope CRT Cathode ray tube CT Total capacitance cw Continuous transmission d Deci (10-1) D/A or D-A Digital to analog DC Direct current Di or Di Change in current DIP Dual in-line package DMM Digital multimeter DPDT Double pole double throw Dt or Dt Change in time DTL Diode transistor logic Dv or Dv Change in voltage DVM Digital voltmeter E DC or Erms Difference in potential e Instantaneous difference in potential ECG Electrocardiogram ECL Emitter coupled logic EHF Extremely high frequency EHV Extra high voltage ELF Extremely low frequency EMF Electromotive force EMI Electromagnetic interference EW Electronic warfare

f

Frequency

FET

Field effect transistor

FF

Flip Flop

fil

Filament

FM

Frequncy modulation

f_r

Frequency at resonance

fsk

frequency-shift keying

FSD

Full scale deflection

G

Gravitational force

G

Conductance

G

Giga (10⁹ )

H

Henry

H

Magnetic field intensity

H

Magnetizing flux

h

hecto (10² )

h

Hybrid

HF

High frequency

hp

Horsepower

Hz

Hertz

I

Current

i

Instantaneous current

I_B

DC Base current

I_C

DC Collector current

IC

Integrated circuit

I_e

Total emitter current

I_eff

Effective current

IF

Intermediate frequency

I_max

Maximum current

I_min

Minimum current

I/O

Input/output

IR

Infrared

I_R

Resistor current

I_S

Secondary current

I_T

Total current

JFET

Junction field effedt transistor

K

Coefficient of coupling

k

Kilo (10³ )

kHz

Kilohertz

kV

Kilovolt

kVA

Kilovoltampere

kW

Kilowatt

kWh

Kilowatt-hour

L

Coil, inductance

LC

Inductance-capacitance

LCD

Liquid crystal display

L-C-R

Inductance-capacitance-resistance

LDR

Light-dependent resistor

LED

Light emitting diode

LF

Low frequency

L_M

Mutual inductance

LNA

Low noise amplifier

LO

Local oscillator

LSI

Large scale integration

L_T

Total inductance

M

Mega (10⁶ )

M

Mutual conductance

MI

Mutual inductance

m

Milli (10^-3 )

mA

Milliampere

mag

Magnetron

max

Maximum

MF

Medium frequency

mH

Millihenry

MHz

Megahertz

min

Minimum

mm

Millimeter

mmf

Magnetomotive force

MOS

Metal oxide semiconductor

MOSFET

Metal oxide semiconductor field effect transistor

MPU

Microprocessor unit

MSI

Medium scale integrated circuit

mV

Millivolt

mW

Milliwatt

N

Number of turns in an inductor

N

Revolutions per minute

n

Nano (10^-9)

N

Negative

nA

Nanoampere

NC

Normally closed

NC

No connection

NEG, neg

Negative

nF

Nanofarad

nH

Nanohenry

nm

Nanometer

NO

Normally open

NPN

Negative-positive-negative

ns

Nanosecond

nW

Nanowatt

OP AMP

Operational amplifier

P

Pico (10^-12)

P

Power

p

Instantaneous power

P

Positive, also peak

PA

Public address or power amplifier

pA

Picoampere

PAL

Programmable Array Logic

PAM, pam

Pulse amplitude modulation

P_ap

Apparent power

P_av

Average power

PCB

Printed circuit board

PCM, pcm

Pulse-code modulation

PDM

Pulse-duration modulation

pF

Picofarad

PLD

Programmable Logic Device

PLL

Phase locked loop

PM

Phase modulation, also Permanent magnet

PNP

Positive-negative-positive

POT, pot

Potentiometer

P-P

Peak to peak

PPM

Pulse-position modulation

PRF

Pulse repetition frequency

PRT

Pulse repetition time

pw

Pulse width

PWM, pwm

Pulse width modulation

Q

Charge, also quality

q

Instantaneous charge

R

Potentiometer

R

Resistance

RAM

Random access memory

RC

Resistance-capacitance, also Radio controlled

rcvr

Receiver

rect

Rectifier

ref

Reference

rf

Radio frequencies

RF

Radio frequencies

RFI

Radio frequency interference

R_L

Load resistor

RLC

Resistance-capacitance-inductance

RMS, rms

Root mean square

ROM

Read only memory

rpm

Revolutions per minute

SCR

Silicon controlled rectifier

SHF

Super high frequency

SIP

Single in-line package

SNR

Signal-to-noise ratio

SPDT

Single pole double throw

sq cm

Square centimeter

SSB

Single sideband

SW

Short wave

SWR

Standing-wave ratio

SYNC, sync

Synchronous

T

Tera (10¹²)

T

Torque

T

Transformer

t

Time in seconds

TC

Time constant, also temperature coefficient

TE

Transverse electric

temp

Temperature

THz

Terahertz

TM

Transverse magnetic

TR

Transmit-receive

TTL

Transistor-transistor logic

TV

Television

TWT

Travelling wave tube

UHF

Ultra high frequency

UHV

Ultra high voltage

UJT

Unijunction transistor

UV

Ultraviolet

V

Vacuum tube

V, v

Volt

v

Instantaneous voltage

VA

Volt ampere

V_av

Voltage (average value)

V_BE

DC voltage base to emitter

V_c

Capacitive voltage

V_CE

DC voltage collector to emitter

VCO

Voltage controlled oscillator

VHF

Very high frequency

V_in

Input voltage

V_L

Inductive voltage

VLF

Very low frequency

V_m, V_max

Maximum voltage

VOM

Volt ohm milliameter

V_out

Output voltage

V_p

Primary voltage

V_S

Source voltage

VSWR

Voltage standing wave ratio

V_T

Total voltage

W

Watt

X_C

Capacitive reactance

X_L

Inductive reactance

Y

Admittance

Z

Impedance

Z_in

Input impedance

Z_o

Output impedance

Z_p

Primary impedance

Z_s

Secondary impedance

Z_T

Total impedance