Electrical drives and power electronics TESTS · The synchronous machines are associated with the names of Ferraris · Name the scientists who first studied electrical phenomena Coulomb · The DC machines are associated with the names of Jacobi Henry · The leading companies in the world market of electrical drive engineering are Mitsubishi · · The electromagnetic torque is born in air gap · What kind of drives the majority of drive systems present low accuracy · The induction machines are associated with the names of Dolivo-Dobrovolsky Tesla · One of the first eletrical motors has been built by Jacobi · Electromagnetic efficiency is measured in tesla · Time constants are measured by ms s hours · Who is the author of the first electrical motor Henry · Which rectifier cannot be built without a transformer 3-phase midpoint · Call the benefits of 3-phase rectifiers upon the 1-phase ones output voltage · Which rectifier has ...
Tallinn University of Technology Department of Electricl Power Engineering and Mechatronics Report on Exercises 4 on Power Electronics AC Voltage Regulators Tallinn 2017 Given parameters: Output voltage, Ud = 20 V Input frequency, fin = 50 Hz Load resistance, Rload = 70 kOhm Calculations: U ¿ =2∗U out =2∗20=40V U max U rms = =17.09 V √2 Period = pulse width + delay => 10 ms = 5 ms + 5 ms Table 1. Control curve data. Delay time, Pulse with, Alpha, firing Switch SCR ms ms angle Uout, V Iout, mA Uout, V Iout, mA 0 10 0 28.14 ...
Tallinn University of Technology Department of Electricl Power Engineering and Mechatronics Report on Exercises 3 on Power Electronics Three-Phase Rectifiers Tallinn 2017 Given parameters: Output voltage, Ud = 10 V Input frequency, fin = 50 Hz Load resistance, Rload = 70 kOhm Calculations: M3 rectifier: u1 10 I d= = =0.143 mA R L 70000 2π Ud 2 π∗10 U ¿max = = =12.09 V 3 √3 3 √3 U ¿ max 12.09 U ¿rms = = =8.55V √2 √2 B6 rectifier: πUd π∗10 U ¿max = = =6.05 V 3 √3 3 √3 U ¿ max 6.05 U ¿rms = ...
Tallinn University of Technology Department of Electricl Power Engineering and Mechatronics Report on Exercises 1 on Power Electronics Single-Phase Half-Wave Rectifiers Tallinn 2017 Given parameters: Output voltage, Ud = 10 V Input frequency, fin = 50 Hz Load resistance, Rload = 70 kOhm Calculations: u1 10 I d= = =0.143 mA R L 70000 πUd 3.14∗10 US= = =22.2 V √2 √2 PIV =π∗Ud=3.14∗10=31.42V U max =√ 2∗U s=√ 2∗22.2=31.4 V Table 1. Value comparison table. Parameter Calculated Measured Error Ud, V 10 9.667 0.33 Fin,...
Tallinn University of Technology Department of Electricl Power Engineering and Mechatronics Report on Exercises 2 on Power Electronics Single-Phase Full-Wave Rectifiers Tallinn 2017 Given parameters: Output voltage, Ud = 10 V Input frequency, fin = 50 Hz Load resistance, Rload = 70 kOhm Calculations: u1 10 I d= = =0.143 mA R L 70000 πUd 3.14∗10 US= = =11.1 V 2 √2 2 √2 U Smax =U S∗√ 2=11.1∗√ 2=15.7 V PIV =2∗U smax =2∗15.7=31.4 V I max=I d∗√ 2=0.143∗√ 2=0.2 V Table 1. Value comparison table. Parameter Calculated Measured Error Ud, V 10 9.6 0.3 Id, mA 0.143 0.137 0.006 Usmax...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 1 on Electronics and Semiconductor Engineering Linear Circuits Student AAVB-41 Tallinn 2008 Exercise 1.1. RL circuit Quantity Calculated Experimental value value Umax, V 14,14 14,14 I, mA 983 983 UR, V 9,82 9,81 UL, V 1,85 1,85 -10,7 -10,6 -2,0 -1,7 -0,15 -0,15 Comparative data table Conclusion Calculated and experimental results...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 2 on Electronics and Semiconductor Engineering Filters Student AAVB-41 Tallinn 2008 Exercise 2.1. Low-pass filter Circuit diagram Timing diagram and frequency responses High-pass filter Circuit diagram Timing diagram and frequency responses Calculations Quantity Calculated Experimental value value Umax, V 14,14 14,14 I, mA 0,0044 0,0044 UR, V 4,47 ...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Electronics and Semiconductor Engineering OP AMPS Student AAAB-41 Tallinn 2011 Exercise 5.1. Non.Inverting Voltage Amplifier Fig . Circuit diagram Fig . Diagrams of bandwidth versus gain. Data table Measur Calculated ed Uin R1, k R2, k KU Uout, V fc, kHz KU Uout, V fc, kHz 0,7 2 18,57 9,63 6,74 14...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 3 on Electronics and Semiconductor Engineering Diode circuits Student AAVB-41 Tallinn 2008 Exercise 3.1. Diode characteristics Fig. 3.1. Circuit diagram Timing diagram Output characteristic (forward bias only) Forward Bias Reverse Bias Umax, V UAC, Vrms Measured Calculated IA, Arms IA, Arms 0,5 0,35 0,006 0 1 0,64 0,1 0 2 1,05 4,71 ...
Electrical engineering What is electrical engineering? Electrical engineering is a field of engineering that generally deals with the study and application of electricity, electronics, and electromagnetism Info about electrical engineering This field first became an identifiable occupation in the later half of the 19th century after commercialization of the electric telegraph, the telephone, and electric power distribution and use Subsequently, broadcasting and recording media made electronics part of daily life. The invention of the transistor, and later the integrated circuit, brought down the cost of electronics to the point they can be used in almost any household object. Famous people with big impact are Nikola Tesla, Alexander Graham Bell, john Logie Baird and many more How to become an electrical engineer Electrical engineers typically hold a degree in electrical engineering or electronic engineering. Getting into engineer...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 5 On Electronics and Semiconductor Engineering Op amps AAVB-41 Tallinn 2008 Exercise 5.1. Non-Inverting Voltage Amplifier Fig. 5.2. Diagrams of bandwidth versus gain Data table R1,k Measur ed Calculated Uin,V R2,k K Uout,V fc,kHz K Uout,V fc,kHz 1 90 50 2,80 1,98 530,31 2,8 1,96 535,71 1 90 40 3,25 2,30 457,55 3,25 2,28 461,54 1 90 30 4,00 2,83 372,40 4 2,80 ...
Click to edit Master text styles Second level Third level Fourth level Fifth level Tallinn University of Technology Tallinn 2012 Content What actually means Green IT? Origin Regulations and industry initiatives Approaches Green computing certifications Green IT Click to edit Master text styles environmentally sustainable Second level Third level computing or IT Fourth level Fifth level minimal or no impact on the environment Origin 1992 U.S. Environmental Protection Agency Energy Star TCO Development T...
Region Important cities Industry Farming South Bristol, Weymouth, Cheddar cheese, sheep West Poole, Plymouth, cider, tin, stone, Exeter , Salisbury, Bath, clay, engineering, Gloucester ship building, electronics, food processing, computers, cars. South East Oxford,Reading,Windsor The largest oil Fruit refinery,hovercroft farms,Lamberhurst, factories,nuclear Apples,hops,brewing power station, beer East of Cambridge , Norwich , Fishing , cereals, sugarbeet, England Ipswich, fru...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report Diodes Tallinn 2011 + A VS RV V D - Fig. 1.1. Circuit diagram VS - DC voltage source PS 5005, 0-50VDC/0-5A RV - Rheostat, Rmax=3600 V - DC volt meter DV-101, 200mV-200V A - DC current meter DA-103, 2mA-20mA-200mA-5A D - Diode 1N360 Voltage divider calculations RV=(US-UAC)/If(max) RV=(46,6 - 0,45)/0,1=461,5 Table 1.1. Observed data If , mA US If Uf Ir ...
A Course In the Design of ABS Piping Our Objectives Presented by Geoffrey D Stone FIMechE C.Eng http://waterhammer.hopout.com.au/ Provide an insight into what piping designers need & expect Define the role of the supplier & designer Learn some fundamentals of piping design Discover failure analysis techniques Share experiences of problems A Course In the Design of ABS Piping What We Shall Look at This Week ABS Material Properties Thermoplastic Pipe Design Waterhammer Analysis Typical Applications of ABS Pressure Pipe Some Anticipated Events Stages of the Design Process Representation-Drawings & Specification Calculation-Engineering & Assumptions Visualisation-Presentation of Information Validation-Testing & Commissioning Role of the ABS Pipe Supplier What the Customer Expects Avoid the following: Material Properties Accept design risk for a sale Design Criteria Accept MTO risk Design Guid...
3 ELEKTRIAJAMITE ELEKTROONSED SÜSTEEMID 4 Valery Vodovozov, Dmitri Vinnikov, Raik Jansikene Toimetanud Evi-Õie Pless Kaane kujundanud Ann Gornischeff Käesoleva raamatu koostamist ja kirjastamist on toetanud SA Innove Tallinna Tehnikaülikool Elektriajamite ja jõuelektroonika instituut Ehitajate tee 5, Tallinn 19086 Telefon 620 3700 Faks 620 3701 http://www.ene.ttu.ee/elektriajamid/ Autoriõigus: Valery Vodovozov, Dmitri Vinnikov, Raik Jansikene TTÜ elektriajamite ja jõuelektroonika instituut, 2008 ISBN ............................ Kirjastaja: TTÜ elektriajamite ja jõuelektroonika instituut 3 Sisukord Tähised............................................................................................................................
United States of America Table of Contents 1. Facts 2. Geography 3. Nature 4. History 5. Population 6. Government 7. Industry, economy 8. America's pop culture Facts Official Name: United States of America Capital City: Washington, D.C. Largest city: New York City Official languages: None at federal level National language: English Government: Federal constitutional republic President: Barack Obama ( Barack Hussein Obama II) Vice President: Joe Biden (Joseph Robinette "Joe" Biden, Jr) Population: 2009 estimate 306,108,000 people Area: Total 9,826,630 km2 (by CIA World Factbook) Currency: United States dollar ($) Motto: In God We Trust Anthem: "The Star-Spangled Banner" Flag Names: The Stars and Stripes, Old Glory, The Starry Banner Seal: Great Seal of the United States Flag ...
International Economic organisations were established to increase globalisation and international co-operation. 1. Economic unions- organisations dealing with international trade and also finance. For example European Union,World Trade Organisation. 2. Cartels-a formal agreement of some kind of raw materials. ASEAN-Association of Southeast-Asia Nations. It was established in 1967-Its aim is to make favorable conditions for membership countries. The members are Brunei,Philippines,Indonesia,Thailand, Myanmar, Cambodia, Laos, Vietnam, Malaisia and Singapore. NAFTA-North American Free Trade Agreement.It was established in 1989 by Canada, USA, and Mexico. They have remained totally independent.All countries may join with this organisation.It is one of the world's biggest economic organisations. MERCOSUR-The South common market.Regional Trade Agreement among Uruguay,Paraguay,Brazil and Argentina.It was founded in 1991. Boliv...
Tallinn University of Technology Department of Electrical Drives and Power Electronics Report on Exercises 2 Diodes Student ******* Code ****96 Group AAVB41 Tallinn 2012 2.1. Diode rectifier VD f = 9 kHz U=6V U = 19.7 V R = 96 k Figure 1. Circuit diagram Figure 2. Timing diagram VD + R = 96 k...
Estonia Estonia is a small country in Northern Europe with an area of about 45 000 sq km. As a part of the East-European Plain, the country has a rather flat surface. The highest and most diverse region in Estonia is in the south-eastern part of the country. At 318 metres, Suur Munamägi is not only the highest point in Estonia, but of all the Baltic countries. There are about 1500 islands in Estonia, the biggest of which being Saaremaa and Hiiumaa. Sixty-four species of mammals have been recorded in Estonia, three of them have been introduced: the racoon dog, the American mink and the muskrat. A couple of species have been re-introduced The European beaver, who was hunted to extinction by the end of the 19th century. A vital population of them now exists in Estonia once again. Another re- introduced species is the red deer. An attempt has been made in Estonia in recent years to disperse the p...
ADVANCES IN TECHNOLOGY 1. My new cellular phone allows me to send text messages anywhere within the country and abroad. (communications) 2. Don't forget to turn on the modem if you want to go-online. (information technology) 3. The advent of endoscopic surgery has greatly reduced the post-operative recovery time of most patiens. (medical) 4. Supermarkets of the future will make use of scanners to read the contents of your trolley and total up your bill. (electronics) 5. Factories which rely on humans working on assembly lines are becoming a thing of the past. (industrial) 6. You would be quite astounded by the number of satellites orbiting the Earth. (space) 7. Not only would a solar powered vehicle be safe, it would also make use of one of the planet's greatest natural resources. (energy) COMPUTERS 1. I'm terribly sorry I'm late but traffic congestion...
The United Kingdom The United Kingdom consists of England, Scotland, Wales and North Ireland and it is situated in the Atlantic Ocean near the mainland of Europe. The population of the UK is 58.6 million and area is 244,110 sq km. Britain has a temperate humid climate. Its characteristic features are mild winters, warm summer, no temperature extremes, abundant rain all year round and frequent changes of weather. The mild climate is partly due to the warm Gulf Stream and partly to the south westerly winds. Occasional winds from the east in winter may bring cold and dry weather. The distribution of rainfall is influenced by the Atlantic Stream. The mountainous areas of the north and west have more rain than the lowlands of the south and east. Wales is located on a peninsula in central-west Britain. The entire area of Wales is about 20,779 km². Wales borders by England to the e...
All about High Tech High tech is technology that is at the cutting edge--the most advanced technology currently available. There is no specific class of technology that is high tech--the definition shifts over time--so products hyped as high tech in the 1960s would now be considered, if not exactly low tech, then at least somewhat obsolete. This fuzzy definition has led to marketing departments describing nearly all new products as high tech. Economy Because the high-tech sector of the economy develops or uses the most advanced technology known, it is often seen as having the most potential for future growth. This perception has led to high investment in high-tech sectors of the economy. High-tech startup enterprises receive a large portion of venture capital. However, if, as has happened in the past, investment exceeds actual potential, then investors can lose all or most of their investment. High tech is often viewed as high risk, but...
INTENSIIVKURSUS ”TOOTMISE AUTOMATISEERIMINE” Intensiivkursus kuulub projekti: „Energia- ja geotehnika doktorikool II” tegevuskavasse Ins. Viktor Beldjajev TÄITURMEHHANISMID Loengumaterjalid Tallinn 2010 Sisukord Tähistused ................................................................................................................................. 5 1. Sissejuhatus ........................................................................................................................... 6 2. Täiturmehhanismide olemus ............................................................................................... 7 2.1. Täiturmehhanismide klassifikatsioon .................................................................................. 7 2.2. Automaatsüsteem ....
Misusing and Abusing the IoT - Now and in the Future The Internet of Things is the network of physical objects—devices, vehicles, buildings and other items which are embedded with electronics, software, sensors, and network connectivity, which enables these objects to collect and exchange data [1]. As the amount of devices connected to the internet of things is constantly on the rise, making it innately more secure and protecting those devices from abuse, in a sense of unwanted access , manipulation by third parties and other scenarios, is rapidly turning into a pressing issue. According to some sources there were about 13.4 billion connected devices back in 2015 and the projections show there might be up to 38.5 billion such devices in 2020 [2]. As the number of devices increases, the necessity for a proper security mechanism concerning those devices becomes a priority in order to safely adopt the evergrowing internet of things into e...
A... AA Auto Answer AAA Authentication, Authorization and Accounting AAB All-to-All Broadcast AAC Advanced Audio Coding AACS Advanced Access Control System AAL Asynchronous Transfer Mode Adaption Layer AAM Automatic Acoustic Management AAP Applications Access Point [DEC] AARP AppleTalk Address Resolution Protocol AAS All-to-All Scatter AASP ASCII Asynchronous Support Package AAT Average Access Time AATP Authorized Academic Training Program [Microsoft] .ABA Address Book Archive (file name extension) [Palm] ABAP Advanced Business Application Programming [SAP] ABC * Atanasoff-Berry Computer (First digital calculating machine that used vacuum tubes) ABEND Abnormal End ABI Application Binary Interface ABIOS Advanced BIOS ABIST Automatic Built-In Self-Test [IBM] ABLE Adaptive Battery Life Extender + Agent Building and Learning Environment [IBM] ABM Asynchronous Balanc...
TartuWaldorf School FINLAND Report Johan Mähar Tartu 2008 Contents p. 1. Introduction....................................................................................................1 2. Nature and geography.....................................................................................2 3. Position and size.............................................................................................2 4. Climate..............................................................................................
Estonia. Estonia, officially the Republic of Estonia is a country in Northern Europe. It is the smallest of the three Baltic countries. Estonia has land borders with Latvia (339 km) to the south and Russia (229 km) to the east. It is separated from Finland in the north by the narrow Gulf of Finland and from Sweden in the west by the Baltic Sea. Estonia has been a member of the European Union since May 1, 2004 and of the NATO since March 29, 2004. The area of Estonia is about 45000 square kilometres and the population is about 1.4 million people. The capital of Estonia is Tallinn and the official language is Estonian. The currency is Eesti kroon. The main religion is Lutheran. Anniversary of the republic is celebrated on February 20. The national flower is cornflower, national bird is barn swallow and national stone is limestone. It is a land of great natural beaut...
Washington Washington is a state in the Pacific Northwest region of the United States located north of Oregon, west of Idaho, and south of the Canadian province of British Columbia on the coast of the Pacific Ocean. It was named after George Washington, the first President of the United States, the state was made out of the western part of the Washington Territory, which had been ceded by Britain in 1846 in accordance with the Oregon Treaty in the settlement of the Oregon Boundary Dispute. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital of Washington. Washington is sometimes referred to as Washington State or the State of Washington to distinguish it from Washington, D.C., the capital of the U.S., which is often shortened to Washington. Washington is the 18th largest with an area of 184,827 sq/km and the 13th most populous state with over 7 million pe...
Arvuti emaplaadid Referaat Sissejuhatus Emaplaat (motherboard), mida inglise keeles kutsutakse veel mainboard (põhiplaat), system board (süsteemiplaat), on personaalarvuti üks tähtsamaid komponente. Kogu arvuti ülesehitus hakkab peale emaplaadist. Emaplaat määrab ära süsteemi jõudluse, kasutatavate protsessorite ja mälude tüübi ning kiiruse. Samuti selle, kas ja milliseid lisakomponente (videokaart, helikaart, võrgukaart) on vaja juurde lisada, et moodustuks terviklik, toimiv arvuti. Emaplaadi ajalugu ulatub 20 aasta taha. 1982 aastal sisaldas tolleaegne IBM PC emaplaati, mis kujutas endast suurt kaarti, millel oli 8088 protsessor, BIOS, mälupesad ja lisapesad lisakaartidele. Kui arvutile oli vaja lisada kettaseadmeid või COM-porte, siis tuli lisaks osta kaart kettaseadmetele ja COM-portidele. Tänapäevastel emaplaatidel on eelpoolnimetatu integreeritud emaplaadile. Emaplaat määrab ära ka arvuti välimuse: on tegemist tower (püstine korp...
Economic Country Review: Finland, Estonia and Hungary Girli Vasiljev Report Business Economics, RB1X 06.05.2012 Abstract 06.05.2012 Experience and Wellness management Author Group Girli Vasiljev RB1X Title of report Number of pages Economic Country Review: Finland, Estonia 20 and Hungary Teacher Kalevi Torunen The goal of this paper is to compare the economic performance of Finland, Estonia and Hungary. First, a general overview on the countries will be given. After, economic indicators (real GDP growth rate, inflation, unemployment, household consumption, investment, current account, government budget and deficit) of the three countries will be compared to draw a conc...
Introduction The United States of America is a very big country. Its territory is about 9.4 million square kilometres and its population is more than 260 million people, 12% of them are the Afro-Americans. It is the world's third-largest country by size and by population. The population density is about 27 people per square kilometre. Most of the people live in towns. There are 50 states in America. The biggest of the state is Texas, next by size are California, Alaska and Montana. Six states - Maine, Vermont, New Hampshire, Connecticut ,Rhode Island and Massachusetts are called New England. They are all small states in the U.S. that lie in the north-east. The first colony of immigrants settled down in Virginia, in the eastern part of the U.S.A. The biggest cities are New York, Washington, Chicago, Los Angeles, San Francisco, etc. The official language of the USA is English; Spanish is also...
Analog Interfacing to Embedded Microprocessors Real World Design Analog Interfacing to Embedded Microprocessors Real World Design Stuart Ball Boston Oxford Auckland Johannesburg Melbourne New Delhi Newnes is an imprint of Butterworth–Heinemann. Copyright © 2001 by Butterworth–Heinemann A member of the Reed Elsevier group All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Recognizing the importance of preserving what has been written, Butterworth–Heinemann prints its books on acid-free paper whenever possible. Library of Congress Cataloging-in-Publication Data Ball, Stuart R., 1956– Analog interfacing to embedded microprocessors : real world design / Stuart Ball. p. cm. ISBN 0-7506-7339-7 (pbk...
Preparing for exam. Focus areas Defining innovation ● “An innovation is an idea, practice, or object that is perceived as new by an individual or other unit of adoption.” (Rogers 1952) ● CIS survey: “Product innovations must be new to your enterprise, but they do not need to be new to your market”. ● “Companies achieve competitive advantage through acts of innovation. They approach innovation in its broadest sense, including both new technologies and new ways of doing things” – (Porter 1990) ● “An innovative business is one which lives and breathes “outside the box”. It is not just good ideas, it is a combination of good ideas, motivated staff and an instinctive understanding of what your customer wants” – (Branson 1998) ● “...novel implementation of an invention, discovery, new or existing knowledge in economic process” (Joseph A. Schumpeter) ● An innovation is the implementation of a new or si...
Introduction Estonia, officially the Republic of Estonia (Estonian: Eesti or Eesti Vabariik) is a country in the Baltic region of Northern Europe. It is bordered to the north by Finland across the Gulf of Finland, to the west by Sweden across the Baltic Sea, to the south by Latvia (343 km), and to the east by the Russian Federation (338,6 km). The territory of Estonia covers 45,227 km² and is influenced by a temperate seasonal climate. The Estonians are a Finnic people closely related to the Finns, with the Estonian language sharing many similarities to Finnish. The modern name of Estonia is thought to originate from the Roman historian Tacitus, who in his book Germania (ca. AD 98) described a people called the Aestii. Similarly, ancient Scandinavian sagas refer to a land called Eistland, close to the German term Estland for the country. Early Latin and other ancient versions of the name are Estia and Hestia. Until the late 1930s, the ...
Tallinn English College Topic Estonia Tallinn 2008 1. Introduction Estonia is a small country about the size of Switzerland, or New Hampshire and Massachussetts combined. Estonia is named after the people called "Ests" who lived in the region in the 1 st century AD. The Republic of Estonia is one of the three countries commonly known as the "Baltic States". The other Baltic States are Latvia and Lithuania. 2. Geographical position Estonia is situated in northeastern Europe. Estonia is bounded on the north by the Gulf of Finland, on the east by Russia, on the south by Latvia and on the west by the Baltic Sea. In the north it borders on Finland. The coastline of the Baltic Sea in Estonia is characterized by numerous gulfs and bays, the biggest of them being the Gulf of Finland, the Gulf of Riga and the Gulf of Pärnu. Bays include the Narva Bay, Matsalu Bay, Kolga Bay, Kunda Bay, Tallinn Bay etc....
TALLINNA POLÜTEHNIKUM Päevane osakond ELEKTRIMOOTORI KIIRUSE AUTOMAATREGULEERIMISE SÜSTEEM Kursusetöö Õppeaine automaatreguleerimine Juhendaja: V. Purro Konsultant: V. Purro Tallinn 2010 2 Sisukord KURSUSETÖÖ ÜLESANNE..............................................................................................3 KURSUSETÖÖ ANDMED................................................................................................. 4 Sissejuhatus.......................................................................................................................... 6 2. SÜSTEEMI FUNK...
Report of SCOTLAND Maiki Joakit 10. klass 2008 Etymology Scotland is from the Latin Scoti, the term applied to Gaels. The Late Latin word Scotia (land of the Gaels) was initially used to refer to Ireland. By the 11th century at the latest, Scotia was being used to refer to (Gaelic-speaking) Scotland north of the river Forth, alongside Albania or Albany, both derived from the Gaelic Alba. The use of the words Scots and Scotland to encompass all of what is now Scotland became common in the Late Middle Ages. History Repeated glaciations, which covered the entire land-mass of modern Scotland, have destroyed any traces of human habitation that may have existed before the Mesolithic period. It is believed that the first post-glacial groups of hunter-gatherers arrived in Scotland around 12,800 years ago, as the ice sheet retreated after the last glaciation. Groups of settlers began building the first known permanen...
Tallinn English College Topic The United States of America Form Tallinn 2005 Introduction The United States of America is a very big country. Its territory is about 9.4 million square kilometres and its population is more than 260 million people, 12% of them are the Afro-Americans. It is the world's third-largest country by size and by population. The population density is about 27 people per square kilometre. Most of the people live in towns. There are 50 states in America. The biggest of the state is Texas, next by size are California, Alaska and Montana. Six states - Maine, Vermont, New Hampshire, Connecticut ,Rhode Island and Massachusetts are called New England. They are all small states in the U.S. that lie in the north-east. The first colony of immigrants settled down in Virginia, in the eastern part of the U.S.A. The...
Estonia Topic Tallinn 2007 2 List of Contents page Facts and figures 3 Geography 3 Climate 3 Nature 4 History 5 Economy 6 Culture 6 Biggest towns 7 Language 8 3 Facts and figures The Republic of Estonia is a small country. Covering only 45, 228 sq km it is slightly bigger than Denmark, Belgium or Switzerland. Estonia's population is under 1.4 million. The official language is Estonian but since very many Russians live here Russian is also wide spread. The capital of Estonia is Tallinn. The currency used in Estonia is Eesti kroon. The Estonian national flag is blue-black-white. It was originally the flag of the Estonian Students' Society. The flag was first consecrated in Otepää Church in 1884. For a while, during the Soviet occupation, the flag was banned but it was again seen in p...
Arvutustehnika ajalugu Millist protsessorit kasutas esimene IBM PC? 8088 Milline oli kõige esimene kommertsmikroprotsessor? 4004 Moore seadus väidab, et ühte mikroskeemi paigutatavate transistorite hulk kahekordistub iga ... kuuga. 18 (või 24) Milline nendest firmadest tõi kasutusele esimesena aknad, ikoonid ja hiire? Xerox Milline oli esimene tabelarvutusprogramm? VisiCalc Kes nendest on Inteli asutajad? Robert Noyce ja Gordon Moore (mõnes kohas Andy Grove) Milli(ne/sed) arvuti(d) aitas(id) briti valitsusel II maailmasõja ajal murda koode? Colossus Kes lõi(d) C programmeerimiskeele? Dennis Ritchie Mille eest said Shockley, Brittain ja Bardeen 1956. aastal Nobeli preemia? Transistori leiutamise eest Milline nendest firmadest valmistas esimese 32 bitise protsessori? National Semiconductor Milline nendest firmadest tootis esimese kõvaketta? IBM Milline nendest firmadest tõi esimesena turule IBM-PC tüüpi kaasaskantava arvuti?...
EKSAMIKÜSIMUSED 2005 Sisukord Sisukord............................................................................................................................................1 Arvuti riistvara matemaatilised alused ............................................................................................ 4 Kahendsüsteem............................................................................................................................4 Boole funktsioonid ja nende esitus..............................................................................................4 Diskreetne aeg............................................................................................................................. 4 Lihtsamaid Boole` funktsioone realiseerivad loogikaelemendid.................................................... 5 AND...........................................................
EKSAMIKÜSIMUSED 2005 Sisukord Sisukord ..................................................................................................................................................... 1 Arvuti riistvara matemaatilised alused ...................................................................................................... 4 Kahendsüsteem .............................................................................................................................. 4 Boole funktsioonid ja nende esitus................................................................................................ 4 Diskreetne aeg ............................................................................................................................... 4 Lihtsamaid Boole` funktsioone realiseerivad loogikaelemendid ............................................................. 5 AN...
1. AGP liides ja selle kasutamine Accelerated Graphics Port Alustas Intel koos Pentium II Videokaartidele 2 reas 66-pin 2. AMD protsessorite areng läbi aegade Amd protsessorite areng läbi aegade. AMD alustas oma protsessorite tootmisga 1995. AMD esimesed protsessori olid (1995) NX586 ja Am486 ning Am5k86 mille taktsagedus oli vastavalt 133Mhz ja 120 ja 90Mhz. Nendele järgnes 1996 aastal K5 seeria. Nende taktsagedus ei ületanud samuti 120 Mhz. 1997 aastal läks kasutusele K6 seeria protsessorid mille taktsagedus ulatus 300Mhz. 98.aastel tehti K6 ka uuendusi K6-2 ja K6-3 mille taktsagedus ulatus 450 Mhz. 1999. Aastal loodi AMD K-7 Athlon, mida uuendati 2000 aastal niipalju et taktsagedus ületas ühe gigahertsi piiri. 2000 aastal lõi AMD ka K-7 Duron protsessori, mis oli väiksema taktsagedusega, kui Athlon. 2003 K8(Opteron,Athlon64,Sempron,Turion64) 3. Andmekandjad (MO,DAT,CD,DVD,ZIP,jne) Mo ...
Tallinna Mustamäe Humanitargümnaasium Valeria Jefremenkova ENGLISH AS A GLOBAL LANGUAGE INGLISE KEEL KUI ÜLEMAAILMNE KEEL Research work Supervisor: Jevgenija Kozlova Tallinn 2016 1 Table of Contents СONTENT…………………………………………………………………………………...2 INTRODUCTION…………………………………………………………………………...3 CHAPTER I……………………………………………………………………………….....5 1.1. A Brief History of the English Language…………………………………………...…..5 1.2. Origins of English as the Global Language……………………………………..……....6 1.3. Necessity of a Global Language...……………………………………………………....8 1.4. Criticism of a Global Language………………………………………………………....9 1.5. The Role of English Today……………………………………………………………..10 1.6. English Speaking Countries…………………………………………………………….11 1.7. Perspectives of English………………………………………………………………....13 CHAPTER I...
TALLINNA TEHNIKAÜLIKOOL Infotehnoloogia teaduskond Thomas Johann Seebecki elektroonikainstituut Eksoskeletid Referaat Egert Pärna 100279IAEMM Tallinn 2011 Sisukord Sissejuhatus ................................................................................................................................................... 3 1.1 Mis on eksoskelett? [1] ................................................................................................................... 3 1.2 Eksoskelettide ajalugu ........................................................................................................................ 4 2.1 Enimteatavad [1][3] .............................................................................................................................
tutvu lausearvutuse keskkonnaga: http://logik.phl.univie.ac.at/~chris/gateway/formular-uk-zentral.html Millistel muutuja väärtustel on lause (Av(B&A))v(-A&(Cv(B&-C))) väär? Panna tuleb results only, 0 on väär 1 on õige Tutvu ajalooga saidis kuni II maailmasõda: http://www.maxmon.com/history.htm Loe läbi jutt ja proovi andmetega mängida: http://math.hws.edu/TMCM/java/DataReps/index.html Kahend süsteemi arvu(101101001) ->kümnend süsteemiks. Nr sisse ja bianarile punkt, ja vaatan base ten integeri kümnendarvudest annab Ecki appletis juuresoleva graafilise kujutise, teen kujundi ja vaatan base integeri mis vastab kahendsüsteemi arvule 1110001 ASCII tabelis? Nr sisse ja punkt bianari, vaatan ...teksti Kümnendsüsteemi arv 33 on kahendsüsteemis? 33 kirjutan ja Base-ten integer, vaatan bianary Loe läbi jutud Atbashi ja Caesari šifri (Caesar cipher) kohta: http://www.wikipedia.org 2 Tutvu ajalooga kuni 1970ndad: http://www.islandnet.com/~...
R IISTVARA JA TEHNILINE DOKUMENTATSIOON Koostanud: Indrek Zolk Tartu Kutsehariduskeskus 2007 Väljaandmist toetab: ???? ©Indrek Zolk, 2007 Eessõna Käesolev õppevahend sisaldab Tartu Kutsehariduskeskuse IKT osakonna õppeaine ,,Riist- vara ja tehniline dokumentatsioon" (hilisema nimega ,,Arvutite riistvara alused", ,,Arvutite lisaseadmed" ning ,,Dokumenteerimine") materjale. Kasutajajuhendite loomine toimub ope- ratsioonisüsteemi paigaldusjuhendi näitel, mistõttu on tähelepanu pööratud ka ketta partit- sioneerimise küsimustele. Laiale lugejaskonnale sobivaid eestikeelseid raamatuid on personaalarvutite riistvara kohta ilmunud võrdlemisi vähe. Aastal 2006 on küll välja antud R. Hooli tõlkes Mark Chambers'i ,,Arvuti ehitamine võhikutele"; käesolevas brosüüris on vähemalt pealtnäha rõhuasetus mit- te arvutimontaazil, vaid mitmesuguste komponentide oma...
SCIENCE AND TECHNOLOGY A century ago communication across any distance was dependent upon the telegraph or letters. No jets crossed the ocean, no television pictures enabled us instantly to see events in any part of the world, there were no worldwide telephone networks and no computers. It is just a short lifetime since humanity first travelled into space and discovered how fragile our planet looks. FROM FIREWORKS TO THE MOON At first glance you might think that there couldn't possibly be anything common between a 13 th century festival in China and the Apollo 11 moon landing in 1969. However, there is a link and that is that they both relied on the use of rockets. The Chinese first developed rockets by filling bamboo tubes with an explosive made from saltpetre, charcoal, and sulphur. The sealed tubes would be thrown onto fires during celebrations because it was thought ...
Tallinn University Natural and exact sciences Molecular Biochemistry and Ecology Maria Gnidenko Capillary electrophoresis Essay Supervisor: Kert Martma Tallinn 2015 Table of contents Acronyms and symbols used Introduction History and development Physical basis and principle of separation Elektrophoresis Electroosmotic flow Separation process Electrodispersion Various methods of separation Capillary zone electrophoresis (CZE) ...
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