Referatai, kursiniai, diplominiai

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Magnetinis laukas
2009-07-09
Magnetito savybės - traukti plieninius daiktus, laisvai pakabinus pasisuka šiaurės-pietų kryptimi. Tokiomis savybėmis pasižyminčius kūnus vadin.magnetais, o reiškinius-magnetizmu. Danų fizikas H. Erstedas pastebėjo, kad, išilgai magnetinės rodyklės ištiestu laidu paleidus nuolatinę srovę, rodyklė pasisuka apie savo ašį. Stiprėjant srovei, magnetinė rodyklė orientuojasi statmenai laidininkui, kuriuo teka ta srovė.
Fizika  Konspektai   (4,86 kB)
Fizika
2009-07-09
Yra dvi pagrindinės materijos rūšys: laukas ir medžiaga. Medžiaga – sutankinta materija, laukas – išsklaidyta materija. Abi formos susilieja mikropasaulyje (fotonas yra laukas, kuris virsta medžiagos dalelėmis: elektronu ir pozitronu). Taigi elektrinis laukas yra materijos rūšis, o krūvis – medžiagos (materijos rūšies) savybė. Elektrostatinio lauko stiprisNejudantys įelektrinti kūnai net vakuume veikia vienas kitą elektrostatine jėga.
Fizika  Konspektai   (4,85 kB)
Mechanika
2009-07-09
Sakykime, kai į kurį nors aplinkos tašką sueina dvi harmoninės, vienodo dažnio, amplitudės ir vienodos svyravimo krypties skersinės bangos. Jei bangų fazių skirtumas šiame taške lieka pastovus, tai taško harmoninis svyravimas turės pastovią amplitudę, kurios didumas priklauso nuo susitikusių bangų fazių: esant priešingoms fazėms, atstojamasis svyravimas lygus nuliui pav, 18,1 133 psl, o kai fazės sutampa, atstojamasis svyravimas yra lygus svyravimų poslinkių E1 ir E2 sumai 18,2 pav.
Fizika  Paruoštukės   (4,74 kB)
Mechanika
2009-07-09
Mechaninis judėjimas – tai kūnų ar jų dalių tarpusavio padėties kitimas erdvėje ir laike.Mechanika – yra fizikos šaka, tirianti materialiųjų kūnų mechaninį judėjimą ir jų tarpusavio sąveiką Ji nagrinėja tik tokias materialiųjų kūnų sąveikas, dėl kurių kinta kūnų taškų judėjimo greitis arba kūnai deformuojasi. Mechaninis judėjimas – tai paprasčiausia materijos judėjimo forma.
Fizika  Paruoštukės   (4,76 kB)
Astrologija
2009-07-09
Nežinojimas ir nemokėjimas nustatyti ir pastebėti žvaigždžių įtakos dar nepakankama priežastis tai neigti. Pagaliau mokslas pradeda pastebėti kosminius įstatymus. Mokslininkai vis dažniau pripažįsta, kad žvaigždės įtakoja žmogaus gyvenimą. Žinoma, abejones vis dar kelia tai, kad atlikus net labai tikslius apskaičiavimus, dažnai gaunami netikslūs rezultatai. Todėl sukyla dvejonės. Atsiranda teigiančių, kad astrologija jau pasenęs mokslas ir nebeatitinka šių dienų reikalavimų. Tvirtinama, kad senovės paskaičiavimai neturi jokio pagrindo.
Fizika  Konspektai   (5,59 kB)
Fizika
2009-07-09
Kūnai kurie traukia plieninius daiktus, pasisuka šiaurės pietų kryptimi vadiname magnetais.Jo savybes magnetizmu.Magnetizmas susijęs su elektriniais reiškiniais.Nuolatiniai magnetai vienas su kitu ir elektros srove sąveikauja be tarpinės medžiagos(jėgų laukais).Nuolatinis magnetas, elektros srovė ir judantis įelektrintas kūnas kuria makroskopinį magnetinį lauką.
Fizika  Konspektai   (4,72 kB)
Jupiteris
2009-07-09
Didžiausia Saulės sistemos planeta, penkta pagal nuotolį nuo Saulės. Aplink Saulę skrieja elipsine orbita 13.06 km/s vid. greičiu (1 lent.). Dėl greito sukimosi apie ašį jo skritulio paplokštumas matomas net pro mažai didinantį teleskopą. Pagal spindesį (didžiausias yra -2 ryškio) tarp planetų Jupiteris yra antras po Veneros. Kampinis skersmuo ~40". Jupiterį gaubia tanki atmosfera, susidedanti iš mol. vandenilio (~74%), helio (~24%) ir ~2% metano, amoniako, anglies monoksido, ciano, fosfino, etano, acetileno, vandens garų. Yra keli debesų sluoksniai, sudaryti iš amoniako ir ledo kristalų ir amonio hidrosulfido.
Astronomija  Konspektai   (5,08 kB)
Anglų kalba
2009-07-09
Everyone wants to live clean, nice and tidy. We like to look at somewhere and say: “What a niece place! How wonderful! Just like in heaven!”. But what are we doing to make the surrounding like this? To my mind just nothing… On the contrary – we do much more to destroy our environment. Living conditions in the world are getting worse and worse. Exhaust fumes and smoke from factories are polluting the air, trees are cutting down, and streets are full rubbish and grime. Furthermore rivers are being polluted by chemicals from factories too.
Anglų kalba  Konspektai   (4,89 kB)
Darbo tikslas. Išmokti įvertinti elektrinių dydžių matavimo sistemines paklaidas 2. Darbo metodika. Laboratoriniams darbams dažniausiai naudojami arba rodykliniai, arba skaitmeniniai matavimo prietaisai.
Fizika  Laboratoriniai darbai   (2,04 kB)
Crime
2009-07-09
Today’s teenagers have many drugs in their bodies crack, cocaine and many deadly weapons in their hands. Guns in the guns of teenagers and violence on TV and in films may be problems, but they are not the only ones. Children spend too much time hanging out. The positively example of family, shool, religion have grown weak and ineffective. Young single mothers are unprepared for child rearing… Many boys do not have the example to a strong positive male model.
Anglų kalba  Konspektai   (3,34 kB)
Volcanism
2009-07-09
The World Organization of Volcano Observatories was established as the result of a meeting of representatives from world-wide volcano observatories, held in Guadeloupe in 1981. WOVO became International Association of Volcanology and Chemistry of the Earth's Interior Commission in the following year.
Anglų kalba  Konspektai   (4,7 kB)
Planets
2009-07-09
For over fifty years, a number of nations have been involved in the exploration of outer space. This research is very costly. Has this money been well-spent or wasted? Some people believe that most space research should be eliminated because of its expense. These people point out the fact that it costs billions of dollars to send astronauts to the moon, but all they bring are some worthless rocks. These people say that the money wasted in outer space could be spent on more important projects on earth, such as providing housing for homeless people, improving the education system, saving the environment, finding cures for diseases.
Anglų kalba  Konspektai   (4,82 kB)
Business Ethics
2009-07-09
Business ethics is a form of applied ethics, a branch of philosophy. As such, it takes the ethical concepts and principles developed at a more theoretical, philsophical level, and applies them to specific business situations. Generally speaking, business ethics is a normative discipline, whereby particular ethical standards are assumed and then applied. It makes specific judgements about what is right or wrong, which is to say, it makes claims about what ought to be done or what ought not to be done. While there are some exceptions, business ethicists are usually less concerned with the foundations of ethics (metaethics), or with justifying the most basic ethical principles, and are more concerned with practical problems and applications, and any specific duties that might apply to business relationships.
Anglų kalba  Konspektai   (6,48 kB)
Discuss the following statements. Which of them could be used to define culture? Before reading the text, explain in your own words what is meant by culture. Work in small groups or pairs and then share your ideas in the classroom .
Anglų kalba  Konspektai   (4,73 kB)
Signs of the Zodiac
2009-07-09
Aries (March 21-April 19) Element: Fire Modality: Cardinal Ruling Planet: Mars, Pluto Part of Body: Head, skull sinuses, jaws. Herbs: Pepper, garlic, hemp, poppy, holly, thistle, onion, fern, mustard. Stones: Bloodstone, ocher, diamond, ruby. Keywords: Self, ego, imitative, action, courageous, pioneering, adventurous, freedom-loving, independent. Business Types: Exploration, design, engineering, athletics. Aries starts off the Zodiac, and it is self-motivation that is the hallmark of this sign.
Anglų kalba  Konspektai   (5,35 kB)
If you are on the move, America is the home of fast food. Enjoy a certain déjà vu as you sink your teeth into a McDonald's, Burger King, KFC or Pizza Hut menu or just a faint recognition at Jack in the Box, Wendy's or Taco Bell, the Mexican food takeaway. The hamburger is still king of fast food. For a healthier kind of fast food, don't miss America's legendary delicatessens (delis) - the best of which serve fantastic gourmet sandwiches and salads. Chose your sandwich - hoagie or sub (French bread), club (three slices of toast with fillings sandwiched in between), rye (black rye bread) or bagel and fill it up with cream cheese and lox (smoked salmon), chicken, pastrami (smoked beef), tuna or egg. As befits the American "melting pot" the range of ethnic cuisine on offer is vast - both at fast-food take outs and serious restaurants.
Anglų kalba  Konspektai   (4,26 kB)
Did you know that the can opener was invented 48 years after cans were introduced? Cans were opened with a hammer and chisel before the advent of can openers. A Londoner, Peter Durand, invented the tin canister, or can, in 1810 for preserving food. There were no can openers yet, and the products labels would read: "cut around on the top near to outer edge with a chisel and hammer." The first can opener was invented in 1858 by American Ezra Warned. The well-known wheel-style opener was invented in 1925. Beer in a can was launched in 1935.
Anglų kalba  Konspektai   (6,59 kB)
Interesting Jobs
2009-07-09
The fact is well-known that unemployment is the most important and threatening problem in the whole world. In addition to this I am able to add that unemployment in Lithuania is still growing. This fact illustrates that choosing the type of career is the most responsible decision in person's life. In case I have a possibility to choose computer programmer's, lawyer's or teacher's profession, I am absolutely decided to choose teacher's profession when I was in nineth form. There are many reasons why I chose this profession.
Anglų kalba  Namų darbai   (1,4 kB)
Leonardo Wilhelm DiCaprio. Nickname Leo. Height 5' 11" (1.80 m). Mini biography. His name allegedly derives from his German mother Irmalin's having experienced a sudden kick from her unborn boy while enjoying a DaVinci painting at the Uffizi. In the year following his birth, she and his Italian father, George, were divorced. He grew up in Echo Park, then a particularly seedy, drug-dominated area of Los Angeles.
Anglų kalba  Namų darbai   (5,36 kB)
William Bradley Pitt. Height 5' 11" (1.80 m). Mini biography Brad Pitt was born in Oklahoma and raised in Springfield, Missouri. His mother's name is Jane. His father, Bill, worked in management at a trucking firm in Springfield. At Kickapoo High School, Pitt was involved in sports, debating, student government and school musicals. Pitt attended the University of Missouri, where he majored in journalism with a focus on advertising.
Galsworthy’s trilogy – The Man of Property, In Chancery, To Let – concerns an upper middle-class English family and traces, through the story of a group of related characters, the changing aspects of manners and morals from the Victorian age to the period between wars. In his preface john Galsworthy points to the general theme of the series – the disturbance that beauty creates in the lives of men, as exemplified by the story of Irene. The story: In 1886 all the Forsytes gathered at Old Jolyon Forsyte’s house to celebrate the engagement of his granddaughter, June, to Philip Bosinney, a young architect.
Anglų kalba  Konspektai   (3,53 kB)
Dejavu
2009-07-09
The term déją vu is French and means, literally, "already seen." Those who have experienced the feeling describe it as an overwhelming sense of familiarity with something that shouldn't be familiar at all. Say, for example, you are traveling to England for the first time. You are touring a cathedral, and suddenly it seems as if you have been in that very spot before. Or maybe you are having dinner with a group of friends, discussing some current political topic, and you have the feeling that you've already experienced this very thing -- same friends, same dinner, same topic.
Anglų kalba  Konspektai   (4,71 kB)
Once lived boy named John. He was 14 year old. The boy was very friendly and helpful. John and his parents lived in a villge. They had a big farm with a lot of land and livestock. One morning John and his father were going to the market to sell some vegetables and fruits they had grown. It was very cold. The roads were iceovered. However they were being late so they were in a hurry. The engine were roarring. Suddenly the car stardet skiding from side to side.
Anglų kalba  Namų darbai   (0,77 kB)
New Year
2009-07-09
New Year - conditional start of the Calendar year. Ancient Lithuanian, national holidays calendar, shows that the beginning of the New Year during ancient times had no fixed date. According to ethnographers’ thinking, the abundant agrarian rites with sun and fire elements of worship, winter’s burial, preparation for spring works traditions could signify the New Year start. Later the new Year was identified with Easter, which is bound with plant vegetation and start of outdoor work.
Anglų kalba  Namų darbai   (4,91 kB)
The great pyramid is believed to have been built over a 20 year period. The site was first prepared, and blocks of stone were transported and placed. An outer casing (which disappeared over the years) was then used to smooth the surface. Although it is not known how the blocks were put in place. One theory involves the construction of a straight or spiral ramp that was raised as the construction proceeded. This ramp, coated with mud and water, eased the displacement of the blocks which were pushed (or pulled) into place. A second theory suggests that the blocks were placed using long levers with a short angled foot.
Anglų kalba  Namų darbai   (1,85 kB)
Spain, officially the Kingdom of Spain, is a country located in Southern Europe, with two small exclaves in North Africa (both bordering Morocco). The mainland of Spain is bounded on the south and east by Mediterranean Sea (containing the Balearic Islands), on the north by the Bay of Biscay and on the west by the Atlantic Ocean (containing the Canary Islands off the African coast). Spain shares land borders with Portugal, France, Andorra, Gibraltar and Morocco. It is the largest of three sovereign states that make up the Iberian Peninsula — the others being Portugal and Andorra.
Anglų kalba  Referatai   (6,04 kB)
Business Dress code
2009-07-09
We would like to present for you business dress code. Of course, we know, that your knowledge about clothing is really wide, but in the lecture there were a lot of discussions about it, so we are going to explain why the dress code is so important in the offices or in another workplace. First of all, I think, that everyone knows, this old phrase: "You will never get a second chance to make the first impression”. As a business executive, you have a responsibility to send the best professional message you can be successful.
Anglų kalba  Namų darbai   (3,89 kB)
Egypt
2009-07-09
Capital – CAIRO Area – 1001 450 km² Populate number – 66 100 000. Language – Arabic. Basic religion – Islam 94% , Other 6% Government – Many parties democracy. Monetary unit – Egypt pound. Literate – 50% Life duration – 61 years. People for 1 doctor – 1320. TVs for 1000 people – 109. Longest river – Nile (this river longest in the world). Egyptian History. gypt is one of the most fertile areas of Africa, and one of the most fertile of the countries around the Mediterranean Sea. Because it is so fertile, people came to live in Egypt earlier than in most places, probably around 40,000 years ago.
Anglų kalba  Referatai   (4,4 kB)
Cat's
2009-07-09
A group of cats is referred to as a clowder, a male cat is called a tom, and a female is called a queen. The male progenitor of a cat, especially a pedigreed cat, is its sire, and its female progenitor is its dam. An immature cat is called a kitten (which is also an alternative name for young rats, rabbits, hedgehogs, beavers, squirrels and skunks). In medieval Britain, the word kitten was interchangeable with the word catling. A cat whose ancestry is formally registered is called a pedigreed cat, purebred cat, or a show cat (although not all show cats are pedigreed or purebred). In strict terms, a purebred cat is one whose ancestry contains only individuals of the same breed.
Anglų kalba  Referatai   (23,62 kB)
Lithuania's nature is as beautiful as it is diverse. The country's national parks reflect the landscape and culture of its large geographical areas. The thirty regional parks protect and represent the most valuable ecosystems and cultural treasures of different regions from natural, ethno cultural, recreational and aesthetic points of view. The wide variety of wildlife in the parks includes the protected species of animals listed in THE RED DATA BOOK (Lithuania's endangered species list), and rare plants. Research programmes are being carried out in the parks' sanctuaries and reserves. Large areas have been designated as recreational sites.
Anglų kalba  Referatai   (7,37 kB)