OUR UNIVERSITY
Every year many young people enter various Higher Educational Establishments. One of them is The Siberian State University of Telecommunications and Information Sciences. It was founded as The Novosibirsk Telecommunication Institute in 1953. Since that time thousands of its graduates have successfully been working in different parts of our country.
The University is an important research and education center that trains highly qualified specialists in the field of Telecommunications and Information Sciences.
The University is a big training centre with the subsidiary branch in Khabarovsk. Four faculties train students to work in different branches of telecommunications, radioengineering and computer sciences. These faculties are:
The faculty of Automatic Electrical Telecommunications;
The faculty of Multichannel Electrical Telecommunications;
The faculty of Radiocommunication, Radiobroadcast and Television;
The faculty of Economics and Telecommunications Management.
The faculty of Automatic Electrical Telecommunications trains specialists in:
telecommunications networks and switching systems (planning and operation of data switching centres and digital exchanges);
computer software for engineering;
means of communication with movible objects.
The faculty of Multichannel Electrical Telecommunications trains
specialists in the following specialities:
multichannel telecommunications systems (planning, construction and operation of digital multichannel transmission systems and fibre optics microwave and satellite telecommunications systems);
physics and optics communication engineering.
The faculty of Radiocommunication, Radiobroadcast and Television trains specialists in:
radiocommunication, radiobroadcast and television (planning, construction and operation of radiocommunication, radiobroadcasts and television systems as well as space communication systems);
radioengineering (to work in research and planning companies in the field of radio);
planning and new development in technology for radioelectronic facilities (to work in radioelectronic industry);
- audio-visual facilities (planning, construction and operation of different systems aimed at audio and visual recording amplification).
The faculty of Economics and Telecommunications Management trains specialists in:
- economics and management for telecommunications enterprises (marketing and management in telecommunications branches and in other branches of economics);
- accounting and audit.
Our can study by correspondence without interrupting the work.
The University has a qualified teaching staff; it consists of professors,
lecturers and tutors. They give lectures, take seminars and have tutorials with the students research work.
The students of the University have a five year course of studies. During the first year the students study the history of Russia, mathematics, descriptive geometry, foreign languages and other subjects. The first year is very difficult for students because they can't plan their time very well yet.
The programme of the senior course implies many special subjects such as communication economics, long distance communications, radioen-gineering, telegraphy, television and some others.
The final year is devoted to the diploma project. After graduating from the University one can enter post-graduate courses.
During the course of study students get practical training at the University laboratories which are equipped with the most up-to-date instruments and devices.
Students have a good library at their disposal. Most of the students who come from other parts of the Far East are accommodated in the hostels of the University.
At the laboratory
There are many laboratories at our University. We can name some of them: the laboratory of automatic electrical communication, the laboratory of multichannel electrical communication, the physics laboratory, the language laboratory, the radio and TV systems laboratory and other laboratories.
All the laboratories are equipped with the most up-to-date instruments, devices, installations. The students attend these laboratories to extend their theoretical knowledge and get knowhow on their speciality. The first and second year students attend the physics laboratory, the laboratory of electrical engineering and some others. The students carry out research work under the guidance of qualified specialists.
At the laboratory of electrical engineering we can see voltmeters, ammeters, rectifiers, resistances, ballistical galvanometers, transformers, circuits of different types, amplifiers. The students do many laboratory exercises. Some of them are as follows: Ohm's law, investigation of current resistance, investigation of inductance coil, etc. Before carrying out laboratory exercises a student must study theoretical material, understand the purpose of the laboratory work and do a preliminary calculation, if it is necessary. The students do all the operations of the laboratory work, draw diagrams, take readings of the devices, compare calculation data with experimental ones. Such laboratory work is written up in the form of an individual report.
Language laboratory
The language laboratory is a special class-room for teaching foreign
languages.
There are different systems of laboratories. We can mention two of them.
The first system provides each student with earphones (headphones), a microphone and an amplifier which enable him to listen to taped lessons and to repeat them. Such lab usually has individual booths for students and ft teacher's console.
The teacher's console sends taped programs to the students. The teacher at the console can listen in and can have two-way connection with
any student. The teacher or instructor can monitor and correct any student and check on his progress.
The second system is the "Hear-See" system. This involves television tape recording. The system contains a tape-recorder. It can tape a program from a telecast and also contains a tape player. It can reproduce the pictures and sound of television programs.
Sometimes language laboratories have equipment for the presentation of visual aids. Visual aids are films and slides, they are very useful because they can illustrate the material of taped programs.
Current
Current is a flow of electricity through a circuit. Let us consider
two main types of current: direct and alternating. A direct current (d.c.) flows through a conducting circuit in one direction only. It flows provided a direct voltage source is applied to the circuit.
An alternating current (a.c.) is a current that changes its direction
of flow through a circuit. It flows provided an alternating voltage source is applied to the circuit Alternating current flows in cycles. The number of cycles per second is called the frequency of the current. In a 60-cycle alternating current circuit the current flows in one direction 60 times and in the other direction 60 times per second.
It is easy to transform a.c. power from one voltage to another by a
transformer. Transformers are also used to step down the voltage at the receiving point of the line to the low values that are necessary for use.
When necessary a.c. can be changed into d.c. but this is seldom
necessary.
CONDUCTORS
Conductors are materials having a low resistance, so that current easily passes through them. The lower the resistance of the material, the more current can pass through it.
The most common conductors are metals, and silver and copper are the best of them. The advantage of copper is that it is much cheaper than silver. Thus, copper is widely used to produce wire conductors. One of the common functions of wire conductors is connecting voltage source to a load resistance. Since copper wire conductors have a very low resistance a minimum voltage drop is produced in them. Thus, all of the applied voltage can produce current in the load resistance.
Most materials change the value of resistance when their temperature changes. Metals increase their resistance when the temperature increases while carbon decreases its resistance when the temperature increases. Thus, metals have a positive temperature coefficient of resistance while carbon has a negative temperature coefficient. The smaller is the temperature coefficient or the less the change of resistance with the change of temperature, the more perfect is the resistance material.