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Many task which seem simple for us, such as reading a handwritten note or recognizing a face, are

difficult task for even the most advanced computer. In an effort to increase the computer ability to

perform such task, programmers began designing software to act more like the human brain, with its

neurons and synaptic connections. Thus the field of Artificial neural network was born. Rather than

employ the traditional method of one central processor ( a pentinum) to carry out many instructions

one at a time, the Artificial neural network software analyzes data by passing it through several

simulated processos which are interconnected with synaptic like weight.

The field of neural network was pioneered by Bernard Widrow of Stanford university in 1950s

Neural network are typically organized in layers. Layers are made up of a number of interconnected

nodes, which contain an activation function. Patterns are presented to the network via the input

layer, which communicates to one or more hidden layers where the actual processing is done via a

system of weighted connections. The hidden layer then link to an output layer where the answer is

output .

Each layer of neural makes independent computation on data that it receives and passes the result to

the next layers. The next layer may in turn make independent computation and pass data further or it

may end the computation and give the output of the overall computation. The first layer is the input

layer and the last one is the output layer. The layers that are placed within these two are the middle or

hidden layers.

Commercial (99.2%pure) grades of titanium have ultimate strength of about 63,000 psi(434Mpa) equal

to that of common low grade steel alloys.. hardness of the material is of high(i.e., 716 MPa).

Martin Heinrich Klaproth named titanium for the Titans of Greek mythology.

The processing of titanium metal occurs in 4 major steps.

1. Reduction of titanium ore into sponge , a porous form.2. Melting of sponge , or sponge plus a master alloy to form an ingot; primary fabrication3. Where an ingot is converted into general mill products such as billet, bar, plate, sheet, strip, and

tube

4. Secondary fabrication of finished shapes from mill products.

Applications of titanium:1. Titanium is used in steel as an alloying element ( ferro-titanium) to reduce grain size and as

a deoxidizer, and in stainless steel to reduce carbon content. Titanium is often alloyed with

aluminium ( to refine grain size), vanadium, copper ( to harden), iron, manganese,

molybdenum, and with other metals. Applications for titanium mill products ( sheet, plate,

bar, wire, forgings, castings) can be found in industrial , aerospace, recreational, and

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emerging markets. Powered titanium is used in purotechnics as a source of bright-burning

particles.

2. Aerospace and marine3. industrial