Thursday, April 1, 2010

work up

Each programme of learning really needs to work up to a fully recognised major qualification as an end-goal - and not a worthless 'in-house' diploma - fit only for filing away and forgetting. Unless your qualification is issued by a conglomerate such as Microsoft, Adobe, Cisco or CompTIA, then you may discover it could have been a waste of time and effort - because no-one will recognise it.
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http://www.ilcirroso.itThis one truth alone shows why the UK desperately needs so many more new trainees to get into the Information Technology market. Because the IT sector is increasing at such a speed, is there any other area of industry worth looking at for a new career.

Sunshine

The rain lasted for the whole weekend, and then another two-day small snow followed. It seemed that everything was frozen. But just as soon as I got up this morning, I noticed a piece of sunshine coming through the window. Sunshine! What a surprise! The weather finally had changed fine. On the way to classroom, I noticed that the scenery of the campus was so lovely under the sunshine. Everything seemed to be fresh and new! During the rest of the classes, I suggested one of my classmates to have a walk. It was my first time to walk on that path which was under a shade and beside a peaceful lake. It’s a good place for walking. The sunshine was so warm that it seemed to also shine inside my heart! Then in the afternoon, also in the break of the classes, Miss. Wang advised us to have a look at the scenery outside the window. That’s another marvelous picture. There are a large piece of trees with yellow leaves which a bit looked like maple leaves. Those leaves were waving under the sunshine, through which we could see some outline of the hills far away.What a beautiful day and a marvelous sunshine!
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According to the characteristics of the MGDM system, channel identification codes are used as an innovative approach to overcome the major defect of ICA, uncertainties of sequences and symbols of signals, which can significantly reduce complexity while cheap ralph lauren polo shirts guaranteeing the de-multiplexing performance. The works in this paper are as follows:Firstly,a mathematical model of the IM-DD M×N MGDM system based on GI-MMF is developed, and the Lacoste Polo Shirts relationship between N input signals and M output signals can be described with a real-valued M×N channel matrix H(t). Besides, the expression of the electric field plane wave of a single mode is derived from Maxwell's equations, and the theory of mode groups is introduced. The optimal discount wedding dresses excitation model and spatial selective detection model of MGDM system are also developed. The paper analyzes the frequency response of MGDM system as well, and comes to the conclusion that the the flat iron shop for us elements of channel impulse response and frequency response matrix are real under the proposed model. The impaction of system noise is studied as well as the power loss it caused. MGDM blog lace wedding dresses system bandwidth is investigated and M=N is the best conclusion.Secondly, the selective mode excitation principle is analyzed, quantified the concept of selective mode excitation and mode groups in allusion to idiographic GI-MMF. Moreover, the differences between NFPs of GI-MMF mode groups are described from the simulation in electromagnetic theory and light theory. Then, mode group multiplexer and de-multiplexer are produced for the 2×2 IM-DD MGDM experimental system, and are optimized through experiments. Therefore, it is necessary for a practical MGDM system to have the electrical signal processing. The mode conversion phenomenon of GI-MMF’fusion point is analyzed.Thirdly, the basic conception of ICA and the estimation principle are introduced in detail, and then the feasibility of the de-multiplexing of MGDM system with ICA is analyzed.
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(1)Lead my group to perfect the function of the remote monitoring terminal for city street lamp and improve the security and stability of the terminal; as for the unsolved problems left over due to market the products before its stability, I analyze all aspects of the cheap polo shirts situation and communicate with the customers, resulting that the customers are satisfied at our lowest cost and the company’s credit standing is regained.(2)Lead my group to finish the R&D of the new Power Deviation Monitor (two sets). They passed the inspection of State Grid Lacoste Polo Shirts Zhejiang Electric Power Test & Research Institute. All of these provide mighty indemnify to market products Cheap Lacoste Polo Shirts in time.(3)Lead my group to research and develop new Distribution Transformer Terminal. Lower the cost on the premise of ensuring the function and stability. Passed the chi straightener test of Guangdong Electric Power Research Institute. All of these enhance the competitive men's nike shoes power of the products. Was responsible for the choice of outsourcing parts, hardware design, organization and management of every stage of product chi dazzle R&D; was engaged in appraisement of the researched and ralph lauren polo shirts developed discount wedding dresses project; supervised and promoted the process of R&D in accordance with Quality Management System Process.Description of the Project
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capacity of short-reach MMF networks


Mode group diversity multiplexing (MGDM) aims at creating independent, parallel communication channels over a single GI-MMF using several groups of modes and can greatly improve the capacity of short-reach MMF networks. It is a key technology to reduce the cost of optical access network, upgrade the existing access network, and achieve the FTTB as well as the chi hair straighteners FTTH. The proposal of MGDM communication technology based on the GI-MMF can effectively resolve the bandwidth limitation of MMF, upgrade rapidly and economically on the basis of existing multimode fiber and play a vital role in the current development of the optical fiber network. The cheap ralph lauren polo shirts most important problem to be solved is the crosstalk between the channels which can be called de-multiplexing, which has a great impact on the bandwidth of the MGDM system. How to implement simple and effective de-multiplexing while maintaining the low-cost of the system is the main task in this ralph lauren polo shirts thesis.This paper has done a lot of work on the further discount wedding dresses development of this technology on the basis of previous research. With the starting point of the low-cost, practical and easy to use, a system model of MGDM is built, and a 2×2 MGDM experimental system cheap evening dresses based on 1km-long silica GI-MMF with core–cladding diameter 62.5/125μm is the flat iron shop for us designed and realized, which achieve communications successfully while focusing on the alleviation of crosstalk between channels. It is the first time to propose the independent sell discount wedding dresses component analysis (ICA) as the de-multiplexing method in MGDM channels, of which FastICA algorithm based on the transient linear mixed model is adopted.
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Tuesday, March 16, 2010

Let’s Pray for Love silently


True love is a tree in a forest,although only one,it can provide us with shelter in the rain;True love is a drop of water in the sea,although only one,it can swash the spindrifts of life;True love is a star in the vast universe,although only one,it can reflect the bright sunshine.
In the novel King Lear,the auther described that the king in ancient Britain was old and weak.He decided to divide his possession into three parts and to give them to his three daughters.The eldest and second deceived their father by pretty words,and therefore,each of them got one third of the possession.But then, they maltreated King Lear to crazy,and drove him away.The little daughter couldn"t flatter her father"s misery,she at once sent soldiers to rescue him.Finally,King Lear died of craziness.
After reading King Lear,I cried for the human relations that was broken by the British capitalistic society.Feulanthropy formed the boundary among sympathy,philanthropy and reality.When people were so poor that they had only money and profit left,they simply regarded friends as strangers, regarded parents as strangers.Usury became the bridge for people to communicate.In a world that money led,more and more political tragedies were put on.I fell in deep thought,if there were no profit,history would be changed.
Sometimes,we need to repay peace to soul,and baptism to spirit.The respect for parents,love between couples,followship among friends,care for children,piety for teachers......all have melted in language.We need to understand it by heart.
LiMi proved his respect for grandma by taking actions,and wrote down the moving article Memorial on earnest plea,and won approval by peoplpe all around the world.Zhugeliang showed his worry about his motherland,and left a good name for a hundrad generations by Memorial on Dispatching the Army.
However,an ordinary person couldn"t have such a strong will.But to sow the seeds of love is within our ability.Who can bear the scene that a begger kneeling on the ground and drinking rain water?But to my disappointed,I only saw the sympathetic looks and sad expressions.Out of the crowd,the rushing passers by appeared and disappeared like lightning.Perhaps at that moment,what the begger badly needed wasn"t money,but greetings,encouragement,or just faith.
Love is so,it"s with us all the time,but someone will never find it in his lifetime.Love is a strange thing,it needs to be given,to be created.
In fact,love has already permeated into every field.Teachers sow the seeds of love;doctors light up the fire of life by love;painters decorate the world with love.Love is permanent,love is the biggest possession in one"s life time.
After reading King Lear,I couldn"t forget the little daughter"s philanthropy.Yesterday"s misery has gradually passed away.Our body has got warmth because of love chain.Our soul won"t be lonely any longer.Love chain leads us to the paradise of love,and gives us the warm sunshine.Let"s light up the fire of love by heart,may every pearl in love chain would be bright.
I wiped the dirt on the book softly,and reviewed Shakespear"s monumental work King Lear,then came out the call for love from the bottom of my heart.Therefore,I wrote down the words that have hidden in my heart for a long time.

Threshold of C/I Based on GSM-R


According to 3GPP 0505, the carrier-interference ratio should be more than 9dB in European GSM network. China GSM-R network refers to this European requirement. However, there are some reasons that GSM-R network system can't simply peculate this requirement. First of all, GSM and GSM-R are quite different in some aspects, such as the coverage, interference probability, quality of service, and call drop probability; secondly, there are many differences between China and Europe, the railway transport organization, flow characteristics, the train speed, and so on. Therefore, it is necessary to combine the specification with the practical application. A C/I threshold is needed to evaluate the co-channel interference of GSM-R in China.In this paper, the arithmetic to calculate the threshold for co-channel interference is brought forward under the background of Chinese railway. In this paper, a definition for the co-channel interference probability is given, a formula for co-channel interference probability is derived, and the relationship between bit error rate and C/I in the Rayleigh / Lognormal fading channel is figured out.The paper innovatively associated the co-channel interference probability and bit error rate, and designed an arithmetic which can successfully calculate the C/I threshold. The arithmetic is validate by GSM-R network of Daqin railway, on the basis of sampling, actual measurement, research, theoretical analysis and empirical method. At last, the reasonable C/I value is suggested. The arithmetic was proved to be simple, efficient and useale.