MOBILE FOR DEAF & DUMB...

There is a great news for the dumb and hearing-impaired people, with scientist testing a new mobile device which , they claim can transmit american sign language (ASL) over cellular networks. developed by the engineers That the Washington USA. 

mobile (ASL) uses motion detection technology to identify sign language and transmit video images over cell networks in the US. the tool can be integrated into any high end mobile phone with a video camera on the same side as the screen.according to the resources further research is currently done to optimise compressed video signal for sign language , with a view to increasing the quality of the images around the face and hands to reduce the data rate to 30 kilobytes per second. to minimize the amount of battery power , the mobile ASL phones use motion sensors to determine whether the sign language is being used.

OPEN SOURCES FOR CLOUD COMPUTING

The elastic and flexible nature of the cloud has been extensively used by by the open source software framework that supports data-intensive distributed applications. open source software (OSS) is computer software with its source code made available and licensed with an open source in which the copyright holder provides the rights to study , change and distribute the software for free  to anyone and for any purpose.

• CLOUDSTACK

for creating ,managing, and deploying infrastructure as a service(Iaas) clouds in service-provider environment or enterprise environment . its code base is java , with self-service user portal .it was originally developed by cloud.com, which released most of cloudstack under the GNU general public licence ,version 3(GPLv3). cloudstack 3.0.2 is the latest version . it supports the end-to-end functionality required for infrastructure as a service , which includes compute,storage, network and user management.

• OPENSTACK

software to build public and private clouds. it has a modular architecture, which includes components such as compute,object storage, image service, identity, dashboard, networking and block-storage. originally started by Rackspace & NASA in 2010. currently intel,cisco, dell,hp, AMD, Red hat & IBM have joined the project.

• Eucalyptus

Eucalyptus is an open source + commercial private IaaS service provider. Eucalyptus is the short form for ' elastic computing architecture for linking your programs to useful systems'.

it has compatibility with amazon web service API. it ensures the secure communication between internal process via SOAP & WS- security. linux and windows virtual machines can be run with Eucalyptus .

• OpenNebula

it manages the virtual infrastructure to build private, public and hybrid infrastructure as service clouds. it gives storage, network, virtualisation , monitoring and security. it was is a research project in 2005 by Ignacio M llorente & ruben s montero , and was released under the apache licence.

it provides AWS EC2 & EBS APIs and the self service portal for cloud consumers. it provides a powerful CLI that resembles typical UNIX commands .  it very easy to implement third-party tool integration 

• HADOOP (DISTRIBUTED COMPUTING)

Apache hadoop is a software framework inspired by google's mapreduce and google file system(GFS) papers. this programming model can rapidly process huge amounts og data in parallel , on large clusters of compute instances.it finda application in social networking sources as it can manage the comprehensive and undiscovered relationships .

GATE SYLLABUS (ELECTRONICS AND COMMUNICATION ENGINEERING )

Linear Algebra : Matrix Algebra,
Systems of linear equations,
Eigen values and eigen vectors.
Calculus: Mean value theorems,
Theorems of integral calculus,
Evaluation of definite and improper
integrals, Partial Derivatives,
Maxima and minima, Multiple
integrals, Fourier series. Vector
identities, Directional derivatives,
Line, Surface and Volume integrals,
Stokes, Gauss and Green?s
theorems.
Differential equations: First order
equation (linear and nonlinear),
Higher order linear differential
equations with constant
coefficients, Method of variation of
parameters, Cauchy?s and Euler?s
equations, Initial and boundary
value problems, Partial Differential
Equations and variable separable
method.
Complex variables: Analytic
functions, Cauchy?s integral
theorem and integral formula,
Taylor?s and Laurent? series,
Residue theorem, solution
integrals.
Probability and Statistics:
Sampling theorems, Conditional
probability, Mean, median, mode
and standard deviation, Random
variables, Discrete and continuous
distributions, Poisson,Normal and
Binomial distribution, Correlation
and regression analysis.
Numerical Methods: Solutions of
non-linear algebraic equations,
single and multi-step methods for
differential equations.
Transform Theory: Fourier
transform,Laplace transform, Z-
transform.
ELECTRONICS AND
COMMUNICATION ENGINEERING
Networks: Network graphs:
matrices associated with graphs;
incidence, fundamental cut set and
fundamental circuit matrices.
Solution methods: nodal and mesh
analysis. Network theorems:
superposition, Thevenin and
Norton?s maximum power transfer,
Wye-Delta transformation. Steady
state sinusoidal analysis using
phasors. Linear constant coefficient
differential equations; time domain
analysis of simple RLC circuits,
Solution of network equations
usingLaplace transform: frequency
domain analysis of RLC circuits. 2-
port network parameters: driving
point and transfer functions. State
equations for networks.
Electronic Devices: Energy bands
in silicon, intrinsic and extrinsic
silicon. Carrier transport in silicon:
diffusion current, drift current,
mobility, and resistivity. Generation
and recombination of carriers.p-n
junction diode, Zener diode, tunnel
diode, BJT, JFET, MOS capacitor,
MOSFET, LED, p-I-n and avalanche
photo diode, Basics of LASERs.
Device technology: integrated
circuits fabrication process,
oxidation, diffusion, ion
implantation, photolithography, n-
tub, p-tub and twin-tub CMOS
process.
Analog Circuits: Small Signal
Equivalent circuits of diodes, BJTs,
MOSFETs and analog CMOS. Simple
diode circuits, clipping, clamping,
rectifier.Biasing and bias stability
of transistor and FET amplifiers.
Amplifiers: single-and multi-stage,
differential and operational,
feedback, and power. Frequency
response of amplifiers.Simple op-
amp circuits. Filters. Sinusoidal
oscillators; criterion for oscillation;
single-transistor and op-amp
configurations.Function generators
and wave-shaping circuits, 555
Timers. Power supplies.
Digital circuits: Boolean algebra,
minimization of Boolean functions;
logic gates; digital IC families (DTL,
TTL, ECL, MOS, CMOS).
Combinatorial circuits: arithmetic
circuits, code converters,
multiplexers, decoders, PROMs and
PLAs. Sequential circuits: latches
and flip-flops, counters and shift-
registers. Sample and hold circuits,
ADCs, DACs. Semiconductor
memories. Microprocessor(8085):
architecture, programming,
memory and I/O interfacing.
Signals and Systems: Definitions
and properties ofLaplace
transform, continuous-time and
discrete-time Fourier series,
continuous-time and discrete-time
Fourier Transform, DFT and FFT, z-
transform. Sampling theorem.
Linear Time-Invariant (LTI)
Systems: definitions and properties;
causality, stability, impulse
response, convolution, poles and
zeros, parallel and cascade
structure, frequency response,
group delay, phase delay. Signal
transmission through LTI systems.
Control Systems: Basic control
system components; block
diagrammatic description,
reduction of block diagrams. Open
loop and closed loop (feedback)
systems and stability analysis of
these systems. Signal flow graphs
and their use in determining
transfer functions of systems;
transient and steady state analysis
of LTI control systems and
frequency response. Tools and
techniques for LTI control system
analysis: root loci, Routh-Hurwitz
criterion, Bode and Nyquist plots.
Control system compensators:
elements of lead and lag
compensation, elements of
Proportional-Integral-Derivative
(PID) control. State variable
representation and solution of state
equation of LTI control systems.
Communications: Random signals
and noise: probability, random
variables, probability density
function, autocorrelation, power
spectral density. Analog
communication systems: amplitude
and angle modulation and
demodulation systems, spectral
analysis of these operations,
superheterodyne receivers;
elements of hardware, realizations
of analog communication systems;
signal-to-noise ratio (SNR)
calculations for amplitude
modulation (AM) and frequency
modulation (FM) for low noise
conditions. Fundamentals of
information theory and channel
capacity theorem. Digital
communication systems: pulse
code modulation (PCM), differential
pulse code modulation (DPCM),
digital modulation schemes:
amplitude, phase and frequency
shift keying schemes (ASK, PSK,
FSK), matched filter receivers,
bandwidth consideration and
probability of error calculations for
these schemes. Basics of TDMA,
FDMA and CDMA and GSM.
Electromagnetics: Elements of
vector calculus: divergence and
curl; Gauss? and Stokes? theorems,
Maxwell?s equations: differential
and integral forms. Wave equation,
Poynting vector. Plane waves:
propagation through various
media; reflection and refraction;
phase and group velocity; skin
depth. Transmission lines:
characteristic impedance;
impedance transformation; Smith
chart; impedance matching; S
parameters, pulse excitation.
Waveguides: modes in rectangular
waveguides; boundary conditions;
cut-off frequencies; dispersion
relations. Basics of propagation in
dielectric waveguide and optical
fibers. Basics of Antennas: Dipole
antennas; radiation pattern;
antenna gain.

chrome 25 beta

The beta version of google's web browser for windows has been released with the web speech API , letting the user control more than just search , with voice commands . the browser is currently available for windows users. announcing it , google said "using your voice to search on your computer or phone is handy , but there is so much more you can do with voice commands . imagine if you could dictate documents ,have a free style rap battle , or control game characters with your browser using only your voice . withh todays chrome beta release , this future is closer than you think".
                         Apart from the voice control feature. chrome 25 will bring in security and performance improvements for all extensions. a new search and tab page and better HTML5 support.Developers who want to defend their service from cross-site scripting and other contents injection attacks can now , for example , use the unprefixed contents-security-policy HTTP header to create a white list of trusted contents sources by just adding a few lines to their code.it also supports web component shadow shadow DOM  functionality.

CONSUMER ELECTRONICS SHOW (CES) TOP 5

                                                        CONSUMER ELECTRONICS SHOW

CES is the biggest electronics show on the earth ,organised by consumer electronics association .it was first held in 1967, still continued with showcasing latest innovations and gadgets. CES 2013 location was nevada u.s.a.The speality of CES-2013 was 4k television from samsung as well as new range of mobile, tablet processors with touch & virtual reality technologies.

TOP 5

• OCULUS RIFT :

A virtual reality glasses with headsets, presented in CSE-2013 with 720 HD resolution which is enough to set you in the amazing world of virtual reality. VR goggles used in this technology will change your experience with the video games or even movies.the early impression of the device draws a positive reviews from the experts.

• PEBBLE WATCHES

A smart watch that connects to your i-phone or an android smartphones , making it more accessible by being in your wrist. pebble's colourful multi-layer polycarbonate face looks fantastic. weighing just 38.2 gm , the device is customisable  with beautiful downloadable watchfaces and useful internet -connected apps.it aslo includes a bluetooth 4.0 radio , vibration motor , accelerometer and compass.   

• FLOATING 4K TV

samsung has introduced the world's largest ultra high-definition TV 

(UHD TV ). it appears to be floating within its frame and its time -less gallery frame design with large display. picture quality by restoring detail information to enable greater precision and real-life picture quality.it also delivers deep,real blacks as well as pure vivacious whites with 120-watt sound for an audio experience six times better than a typical TV.

• TACTILE TOUCHSCREEN

Tactus technology has developed a new tactile user interface for touch screen device. it includes application-controlled function, completely transparent physical buttons that rise up from touch screen surface on demand. this touch screen provides a versatile user experience , they provide no tactile experience for consumer.it creates real, physical buttons,where user can rest their fingers on the buttons, as on mechanical keyboard ,and input data by processing down on the keys.

• RAZER EDGE TABLET 

A touch screen device designed for pc games, includes the best features of a tablet, PC and game console in single device. razer edge packs a 25.7 cm touchscreen ,DDDR3 RAM and a high-speed solid state drive for faster loading of windows 8 and other programs .it is the only tablet running windows8  on both an intel core processor and NVIDIA GeForce GPU. it also includes features like force feedback gamepad controller , keyboard dock and docking station for gameplay on an HD TV.