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The longest journey!!!

Posted by Mithila

This is one of my journeys to my hometown- Bhavnagar; during my engineering days… it was not long that I befriend a guy from my hometown itself. He was my junior in school too and now he was in my college. The best part- I never talked to him during school days!! But somehow I knew this thing (or could figure it out) that he was very shy right from school days… yeah I know its funny!! But I had seen him heads all down or looking at ground when he faced a girl… I used to smile at it (found little bit weird then).

He wears the innocence of a small child (till date), umm baby I would say!! And thank God he was not sooo shy talking to me!! To begin with as a senior I offered him my help; in case he needed books n all stuff… so I gave him my mobile no. & he accepted it with gratitude. Then one fine day before his exams he wanted my guidance regarding his paper. So I met him in library tick marking all those important things n topics that were must read!! Library was a comfortable place to chat… as he opened up for the first time there--his private secrets of life (not to mention here). But he was at ease talking to me over the phone rather than meeting personally (you know the shy thing)

So, we had holidays & exams at the same time. Henceforth I was going home for the weekends; but but but I was bunking classes (not all) on Thursday and Friday was already a holiday. So I genuinely asked him if he was goin home?? At that he told he was still in the thought process… I could make out from his voice that he was not well!! So I asked him and advised that he better be home at the earliest.. but he’s a very sincere student and does not give a cent to bunking and I dint know this at that time!! I called him again to ask if his thought process was over & can u believe it he was still pondering!! (Aaarrrgghhh) I insisted him to bunk two lectures (only)!! And when he told that his mom also conveyed the same thing; I felt the magnitude has increased & put some more pressure on him to come along home as I was also going that day.. Low response again!! Finally I told him to inform me if he changed his mind!! (I was shocked that inspite of his bad health he wanted to attend those lectures, bah!)

Luckily he called up in sometime with a positive response.. I told him that I would wait for him at janta chokdi…(Uh well, this is a place from where we get shuttle or chakda to tarapur, again from where we catch a bus to our hometown- tedious process, I know!!) He turned up within few minutes with a surly face. I kept on guessing the reason till he crossed the road and came near & turned his face away!! He hinted me about the reason.. it was then I figured out that his mood was gone as I insisted him to bunk..!! I was left gasping—I had told him because of his bad health… so, better to remain silent- I thought!!

On our way to tarapur, I offered to share my hansfree & listen to radio for timepass (actually to cool him down!!).. but failed!!  For courtesy, I thought I should say sorry!! So I did a trick (dare not to talk).. I went to write msg and typed in – I am sorry if you think what I did was wrong!!(not the exact words, 3yrs have passed!) and displayed the thing before him.. he gave half a nod & continued looking outside; though seated besides me. We dint speak a word till Tarapur. I did acts like offering him water n stuff to check if he accepts or not… thank God – everything was fine until ; when he suddenly opened his mouth-“I’ll go in a S.T. bus if it arrives before the luxury bus” (he knew I travel in luxury only) I took that calmly- my mind was firm; I had planned in such a way as to reach tarapur just before the bus timings!! And so there was it!! We boarded the bus the first seat itself…as we settled down to take a look at tv screen- Mohobbatein!!(the movie they had put on) I felt like uninvited head ache!! He started the conversation gradually and I was contented that finally he was OK (YESS!! achievement) I talked calmy- replied only his questions… then at the stop he got down and bought cold drinks (frooti to be prcised) for us.. he talked something and smiles (YESS!! Another achievement!!) The rest of the journey went smoothly….

He later on became one of my closest friends, but till date I dint forget the grin on his face that day!!

Rainy day !!

Posted by Mithila

It’s a rainy day, I still remember;
I met you for the first time;

And felt like all the winds chime.
You were waiting so lone all wet;
For me to come and get all set all set!!


When I saw you in the rain;
I drew closer you dint refrain;
And I held your hand so tight,
Not to lose it all my life.
And it poured all night all night!!

As we moved on, it was delightful;

You were looking in my eyes,
I was feeling every beat inside,
It was a wonderland;
Like a dream come true all true all true!!


I wished it never ends,
And you be by my side always,
I cant stay from loving you;
The best thing I can do,
Is be with you all life all life!!

My engineering days !!!

Posted by Mithila



The most common question asked to us in our childhood-“My dear, what will you grow up to be?” and I would say without giving thought of even a nanosecond “DOCTOR(undoubtedly!)” because then I thought it was the best thing a human could be- humble and honest and moreover life savior. And I never felt eeky about blood!! But when I grew up and faced realities of this harsh world, I had no other option except admission in engineering. Poor me! I never wished that in my academics. Credit to my merit!!


And after my admission to the college as well as the hostel in another city about 180kms from my hometown, I made myself aware of the fact that now I have to live without mom-dad and the comforts of home, sweethome!! Thank God my schoolmate had also taken admission in the same college and we requested to the rector to get a common room and she allowed!! So the big day had come and as our moms arranged things in our tiny cupboards we were busy attending the orientation programme, glancing at a herd of sufferers of our kind! I doubted whether I would cry or not when mom leaves, as I still had my friend to me. But its not that difficult for a girl to cry, you know!! (cry in front of her and she’ll also cry!) Well I’m not much of that kind; still I dropped a tear or two to mark the commencement of hostel (exile) life.


To be specific after four years I would be an electrical engineer (yuck! - I thought). By God’s grace my college time was 11:00am so that I dint have to wake up early. First year was short and speedy and it went as fast as ice melts once its outta freezer!! Then I shifted to a private flat system- more comfortable and less rules to follow!! And there was a common TV room too!! So second year went in quite a luxury; roaming and hanging out with friends and short trips or you can say big picnics!!


I was in third year then. Some seriousness had to be inculcated now. But still my schedule remained as it was- One fine morning, all of a sudden the alarm in my mobile rang aloud and vibrated everything as if a tsunami had occurred. I woke up to find myself all alone in the room. My room-mates had a morning shift college so they were all gone. I got up and searched for toothbrush with half eyes open. I put on some music to drive away my sleep. Hmm, I usually take 45minutes to get ready. As my college is at 11:00 I do not get time for breakfast because I wake up at 10:00am. My bag is never packed, as I do things at eleventh hour! In years bag had reduced to a single book and pen!



I had never in the deepest dream ever thought of electrical engineering. Imagine four years with wires and wires and some more wires!!! The circuits become me and more complex with each advancing year. Books increase their size in all dimensions. Professors come and go like mighty breeze, and their lectures leave amoeba like impressions on our concrete minds! And your brain shrinks to a volume that is infinitesimally small and can vanish or lose its existence at any instant. On a second opinion minds become highly volatile and may explode anytime!! During this time you also suffer from various types of headaches, hypertension, insomnia and develop some kind of phobias that never existed. You may also experience nervousness and embarrassments- situations generally arising during viva sessions. And to worsen it further (thinking its not enough), they tell you to make and submit projects within a deadline you could never meet!! So you see engineering is not that easy. We are trained in this manner!

RELATIONSHIPS !!!

Posted by Mithila

       A relationship is viewed as a connection between two persons. It may be friendly, personal, romantic or intimate. Generally categorized into two- interpersonal and intimate.



       An interpersonal relationship is a connection between two or more people that may range from fleeting to enduring. This association may be based on love and liking, regular business interactions, or some other type of social commitment. Folks generally try to have an enduring relation be it friendship or any other. But to your surprise there are also people who plan for a shot-lived relation or are happy and contented with it. In such cases if it happens from both the sides its fine; but if not, why to hurt another person breaking the relation?? Instead why not go for a life long relationship as far as possible?? I don’t understand this- guys come on, I mean what’s the harm in it?? These relationships usually involve some level of interdependence.


      Friendship is the sweetest relation in this world. There are times when you badly need your friends and they are not there for you. But why to face this kinda situation even?? So, keep in touch with your close mates n don’t let em leave you in any circumstances!! Just like a seed is sown and then it needs sunlight and water to grow, any relation has to be nursed so that it grows well and the bond strengthens.


      Romantic relationships generally end in lifetime relations. It’s really difficult to find a person who loves you, whom you love!! But when you find them it’s the most wonderful moment of your life. Please folks out there do not lose such persons due to silly fights and stupid misunderstandings. And a day will come when you’ll tell your wife-“Even my kids started to walk without my support but you still hold my hand!!”


      An intimate relationship is a particularly close interpersonal relationship defined by these characteristics: enduring behavioral interdependence, repeated interactions, emotional attachment, and need fulfillment. Humans have a universal need to belong and to love which is satisfied when an intimate relationship is formed. So love and be loved by one and all. This life is too short to hate someone, anyone!!! Lets make the world a better place to live in!!!

CMOS GATES-2

Posted by Mithila


NOR GATE IMPLEMENTATION:

When both the inputs are low, the pmos devices are on as well as both the nmos devices are off. Hence output becomes logic high.


When either of the inputs is high, i.e. A/B is at high logic, the nmos device mn1/mn2 turns on and the pmos mp1/mp2 turns off, hence the output Y is at logic low.

When both the inputs are high, both the nmos devices conduct. As both the pmos devices are off; output becomes logic low.

The truth table is as follows:

 A        B        Y
--------------------
 0         0         1
 0         1         0
 1         0         0
 1         1         0

CMOS GATES

Posted by Mithila

NAND GATE IMPLEMENTATION:


A and B are the two inputs and Y is the output. If either of the inputs is low, i.e. A/B is at low logic, the device mn1/mn2 is off while the pmos mp1/mp2 is on, hence the output Y is at high logic.

When both the inputs are high, the nmos devices are turned on and form a low resistive path from output Y to ground. With the parallel pmos devices off, the output becomes logic low.



The truth table is as follows:

A       B       Y
----------------
0        0        1
0        1        1
1        0        1
1        1        0

NGSPICE example (netlist and electronic circuit)

Posted by Mithila



Electronic circuit for the below programme: 
---------------------------------------------------------
Implement a function with CMOS logic using ngspice:

f = (ABC+DE+F) ´
  = (A´+B´+C´) • (D´+E´) • (F´)


The netlist (spice programme) is as follows:


f.cir
.include model 025
vdd 1 0 dc
va 2 0 (0 2 2ns 2ns 2ns 50ns 100ns)
vb 3 0 (0 2 2ns 2ns 2ns 50ns 100ns)
vc 4 0 (0 2 2ns 2ns 2ns 50ns 100ns)
vd 5 0 (0 2 2ns 2ns 2ns 50ns 100ns)
ve 6 0 (0 2 2ns 2ns 2ns 50ns 100ns)
vf 7 0 (0 2 2ns 2ns 2ns 50ns 100ns)
mp1 8 2 1 1 cmosp w=2um L=0.5um
mp2 8 3 1 1 cmosp w=2um L=0.5um
mp3 8 4 1 1 cmosp w=2um L=0.5um
mp4 9 5 8 1 cmosp w=2um L=0.5um
mp5 9 6 8 1 cmosp w=2um L=0.5um
mp6 10 7 9 1 cmosp w=2um L=0.5um
mn1 10 2 11 0 cmosn w=2um L=0.5um
mn2 11 3 12 0 cmosn w=2um L=0.5um
mn3 12 4 0 0 cmosn w=2um L=0.5um
mn4 10 5 13 0 cmosn w=2um L=0.5um
mn5 13 6 0 0 cmosn w=2um L=0.5um
mn6 10 7 0 0 cmosn w=2um L=0.5um
.dc va 0 2 0.05
.tran 10ns 500ns
.end