The major directions of scientific researches for which AMM-310 is intended are experimental researches in a boundary layer of an atmosphere of a temperature and wind conditions, turbulence, conditions of transposition and scattering of an impurity, heat and mass exchange between a spreading surface and atmosphere. The information obtained with the aid of AMM-310 can be used for a solution of a lot of tasks of scientific and applied character:
Improvement of local weather forecast (precipitations, advection, fogs, ice, low clouds, shifts of a wind, frontal zones); Monitoring and prognosis of contamination of an atmospheric air, ecological monitoring; High-altitude monitoring of a climate of cities (temperature and wind condition); Operative upkeep of the airports, building organizations, rescue organizations, enterprises polluting an atmosphere; Distribution of radiowaves, optical and laser radiation; Wind energy and wind loads. EXERCISE 2Speak about antenna-feeder devices, using the information from the texts.
UNIT VIII
SHORT MESSAGE SERVICE
Text I
What is SMS?
EXERCISE 1
Read and translate the text.
The Short Message Service (SMS) is the ability to send and receive text messages to and from mobile telephones. The text can comprise words or numbers or an alphanumeric combinations. The first short message is believed to have been sent in December 1992 from a personal Computer to a mobile phone on the Vodaphone GSM network in the UK.
SMS is convenient and cost effective for a number of reasons. When you compare it with the cost of airtime for voice calls or wireless web access, SMS is a real bargain. Messages can be received while making voice calls, and there are no busy signals to contend with. Plus, if you find yourself in a situation where taking a sell phone is inappropriate, SMS is silent and discreet. Messages generated by SMS are immediately delivered directly to your phone. There is no need to call an access number, as in the case with voice mail. Also, most carriers offer SMS alerts (information packets, such as stock quotes, sports scores, and news) that can be delivered to your phone regularly scheduled intervals.
The Short Message Service has several unique features. For example, a single short message can be up to 160 characters of text in length. Those 160 characters can comprise words or numbers or their alphanumeric combinations. Non-text based short messages (for example, in binary format) are also supported. These are used for ringtones and logos services.
The short message service is a store and forward service, in other words, short messages are not sent directly from the server to recipient, but always via an SMS centre instead. Each mobile telephone network that supports SMS has one or more messaging centres to handle and manage the short messages.
The short message service features confirmation of the message delivery. This means that unlike paging, users do not simply send a short message and trust and hope that it gets delivered. Instead, the sender of the short message can receive a return message back notifying them whether the short message has been delivered or not.
Short messages can be sent and received simultaneously with GSM voice, Data and Fax calls. This is possible because whereas voice, data and fax calls take over a dedicated radio channel for the duration of the call, short messages travel over and above the radio channel using the signaling path. As such, users of SMS rarely if ever get busy signal as they can do during peak network usage times.
Ways of sending multiple short messages are available. SMS concatenation (stringing several short messages together) and SMS compression (getting more than 160 characters of information within a single short message) have been defined and incorporated in the GSM standards.
To use the short message service users need the relevant subscriptions and hardware, specifically: a subscription to a mobile telephone network that supports SMS; use of SMS must be enabled for that user (automatic access to the SMS is given by some mobile network operators, others charge a monthly subscription and require a specific option to use the service); a mobile phone that supports SMS; knowledge how to send or read a short message using their specific model of mobile phone; a destination to send a message to or to receive a message from. This is usually another mobile phone but it may be a fax machine, PC or Internet address
EXERCISE 2
Learn the following words and expressions.
ShortMessageService – службакороткихсообщений
bargain – выгоднаясделка
carrier – зд. телефон
voice-mail – голосовая почта
ringtone – мелодия на телефоне
logosservice – логотип
to forward a message – переадресоватьсообщениеaA massaging box – колонка
topreclude – устранить
firewall – защитная программа
push-based – поэкранно (постранично)
pull-based – построчно
knowledgeableusers – грамотные пользователи
tobereluctant – делать с неохотой, по принуждению
critical – важный
string concatenation - сцеплениестрок (символов)
EXERCISE 3
Complete the sentences with the information from the text:
… to send and receive text messages to and from mobile telephones. … SMS is a real bargain. … on the Vodaphone GSM network in the UK. … but always via an SMS centre instead. … SMS is silent and discreet. … up to 160 characters of text in length. … as they can do during peak network usage times.
8. … have been defined and incorporated in the GSM standards.
EXERCISE 4
In the text there area number of adverb + participle combinations e. g. immediately displayed. Look at the table below and decide which of the adverbs on the left can correspond to the words on the right.
directly | delivered |
immediately | scheduled |
regularly | sent |
simultaneously | received |
instantly | busy |
hardly if ever | stored |
independently | operated |
routinely | originated |
usually | communicated |
typically | used |
conveniently | accessed |
timely | kept |
EXERCISE 5
Use the words in the column to form one word that fits in the same numbered space in the text. Think what part of speech (noun, adverb, verb etc.) should go in each space.
1.provide
2.income
3.message
4.receive
5. involve
6.compose
7.instant
How do you send and receive messages?
Once you have subscribed to SMS through your service (1)___, receiving messages is easy. Most phones will display an (2)___message alert graphic on the screen. Depending on the device, you may also set a tone to sound when an incoming (3)___arrive. Once a message is (4)___, you can use the scroll keys on your phone or pager to view the message text. Options to store, reply, or forward each message will be available at that time.
It is also easy to send a message. The exact procedure varies from device to device, but it usually (5)___the recipient’s phone number or e-mail address, and then (6)___the message with the phone keypad. You may have the options to send the message (7)___or store it for later delivery.
EXERCISE 6
Complete the text by putting the verbs in brackets into the future form
The future of mobile phones
We know that mobile phones are no longer just phones. There are many models with radio, calculator, MP3 player, or with access to the Internet.
In the future mobile phones ______(be) a lot better and more important – says Dr. Raynolds from the University of Technology in Baltimore. – they _____(be) more complicated with more functions, sort of all-in-one device. First of all, people_____ (have) better access to the Internet than they have today. Mobile phones _____ (have) LCD displays – this ____(help) to read Internet documents and also see the person you are speaking to. With a mobile phone people _____(buy) tickets for the cinema or concert, people _____(order) things from shops, they _____ (pay) bills, and watch films. The new mobile phones _____ (have) fast processors and a big memory just like computers.
And this is going to happen soon. There are new technologies, new inventions and new ideas every day and telephone companies are doing their best to attract clients.
EXERCISE 7
Read the text. Parts of the sentences are missing. Put them in the correct place and translate the text:
people carried a phone from place daughter and my grandchildren in touch with people very More and more people started of clients calling me every started working in 1979 in very developed and only twenty-three conversationsWhy people use mobile phones
The invention of the cell phone or mobile phone dates back to the year 1947. The cellphone was a two-way radio. The technology wasn’t(1)_______ were possible in one area. In 1968 there was already a system of towers, each was a “cell”, and could broadcast waves for a few miles. When (2)_____to place, telephone conversations passed from one tower to another. The first commercial cellular phone system (3)_______ Tokyo. In 1982 the USA had a sellular system that everybody could use. (4)_____ using cellphones and suddenly they were everywhere.
Tim, 31, a businessman: I use my phone for work. I’ve got lots (5)______ day and without a phone I couldn’t do my business.
Nick, 40, a teacher: I just can’t imagine my life without a mobile phone. I call people very often. I thinkit’s a great invention. You can get (6)_____easily. I especially like sending text messages.
Dorothy, 63, retired: I’m glad I’ve got my mobile. I don’t use it very often but I know that I can always call my (7)_____ and I’m always happy when they call me.
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