He started his career with ASV Hinterbrühl and FC Admira/Wacker where he played in the different youth teams. At the age of 19 he went to Bayern München where he started the professional career. The first two years he played for the second squad but in the 1992/93 he played in the first team giving his debut versus Eintracht Frankfurt. 1993 he went back to Austria playing with FC Admira/Wacker . After Wacker Innsbruck in the 1994/95 season he went back to Munich but played for Bayerns rival TSV 1860 München. With 268 matches, 238 of them in the Bundesliga, for 1860 he is the record holder of the club. Due to injuries, he ended his career in 2007.
Cerny made his debut for Austria in March 1993 against Greece. He played 47 matches and scored four goals.His last international was an April 2004 against Luxembourg. He was also in the squad for the 1998 FIFA World Cup in France. There he played two matches versus Cameroon and Chile.
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Franz Wohlfahrt
Franz Bernhard Wohlfahrt (born 1 July 1964 in Sankt Veit an der Glan, Austria) is a former Austrian goalkeeper.
He started with the local club SV St.Veit and turned professional with F.K. Austria Wien. He came together with his older brother Mario, who soon went back to St. Veit. Franz Wohlfahrt played then 20 years or 496 matches for this club divided in two sections. With Austria Wien he became 6 times Austrian Champion and four times Austrian cup winner. He became widely known during a UEFA Cup match versus Ajax Amsterdam when he was injured by a bar thrown by an Ajax supporter. Following this Ajax was banned for one year in European football. From 1996 till 2000 he played for the German team VfB Stuttgart, with the club he played in the 1997/98 UEFA Cup final versus Chelsea (0:1). 2000 he went back to Austria Wien. 2002 he ended his career but in 2007 he started again playing for ASK Hirm, whose goalkeeper was injured.
In 1983 he played in the 1983 FIFA World Youth Championship. His first match in the senior team was in August 1987 in a match versus Switzerland. His last match was a qualification match for the 2002 FIFA World Cup versus Turkey. He was also a goalkeeper in the 1998 FIFA World Cup squad. In 1999 he was goalkeeper during the 0:9 defeat versus Spain in Valencia. All in all he played 59 matches for Austria.
Gas exchange
Exchange of gases or gas exchange is carried out by organisms, where different gases move in different directions. Animals, microorganisms and plants breathe out carbon dioxide and breathe in oxygen. To balance the composition of air, plants use carbon dioxide to carry out photosynthesis, so oxygen is made. Plants only carry this out during the day, when there is sunlight. Plants respire all day and night.
In humans, gas exchange happens in the alveolus (alveoli for plural). These are in the lungs and help with diffusion. Oxygen diffuses into the bloodstream, from the air. Oxygen is used in aerobic respiration. Carbon dioxide diffuses out of the bloodstream, into the air. Carbon dioxide is a waste product made by respiration.
Not all of the oxygen breathed in gets to the blood. A small percentage is breathed back out again, and a small amount of carbon dioxide stays in the blood.
Pentene
Pentene is the name of alkenes with the formula CH. They are hydrocarbons. In total, there are five different pentenes. Pentens occur in cracking processes and in natural gas. Pentenes are used for polymerization, and for the synthesis of isoprene, amyl alcohols and Alkylphenols. Amyl alcohols are used as stabilizers in the production of Chloroform and Dichloromethane to stop phosgene from being made.
Paul Strzelecki
Paul Edmund de Strzelecki (20 July 1797 — October 1873) was a Polish man who taught himself geology. He became famous for his explorations in Australia.
He was born in Gluszyna, near Poznan, Western Poland in 1797 and later served briefly with the Prussian army. He tried unsuccessfully to marry a young girl, and then was accused of stealing money from his employer. He moved to London and gave himself the title of Count Strzelecki. In 1834 he went to North America and spent time visiting mineral areas and exploring for minerals. He is said to be the first person to find copper in Canada. In 1836 he travelled along the west coast from Chile to California.
In 1839 he visited the Hawaii, Tahiti, New Zealand and finally landed in Sydney, Australia. He wanted to make a geological map, and explored large parts of New South Wales and Victoria, including the Australian Alps. He climbed Australia's highest mountain, and named it Mount Kosciuszko, after the Polish leader, Tadeusz Kosciuszko.
He spent several years in Tasmania before going back to Sydney. He went back to London in 1843. He wrote a book on his discoveries in Australia called "Physical Description of New South Wales and Van Diemen's Land". He was given the Founder's Medal by the Royal Geographical Society.
In 1847—8 he was put in charge of the giving out money in Ireland during the Great Famine for the British Relief Association. He established standards for giving out assistance that are still being used.
He was made a Fellow of the Royal Geographic Society and the Royal Society. He was awarded the K.C.M.G. in 1869. He died from cancer in 1873. He left instructions that after his death his papers were to be burnt and his body buried in an unmarked grave.
A road from Lyndhurst to Innamincka was named the Strzelecki Track after Paul Strzelecki. It was used until the 1930's to move cattle to Adelaide, and now is the main road to Moomba, a huge natural gas field which supplies Adelaide and Sydney. The Strzelecki Ranges in Victoria are also named after him. A large national park on Flinders Island, the Strzelecki National Park, was named after Strzelecki who climbed the mountains there in 1842.
Stress (mechanics)
Stress is the force per unit area on a body that tends to cause it to change shape.
Stress is a measure of the internal forces in a body between its particles. These internal forces are a reaction to the external forces applied on the body that cause it to separate, compress or slide. External forces are either surface forces or body forces. Stress is the average force per unit area that a particle of a body exerts on an adjacent particle, across an imaginary surface that separates them.
The formula for uniaxial normal stress is:
where σ is the stress, F is the force and A is the surface area.
In SI units, force is measured in newtons and area in square metres. This means stress is newtons per square meter, or N/m. However, stress has its own SI unit, called the pascal. 1 pascal (symbol Pa) is equal to 1 N/m. In Imperial units, stress is measured in pound-force per square inch, which is often shortened to "psi". The dimension of stress is the same as that of pressure.
In continuum mechanics, the loaded deformable body behaves as a continuum. So, these internal forces are distributed continually within the volume of the material body. (This means that the stress distribution in the body is expressed as a piecewise continuous function of space and time.) The forces cause deformation of the body's shape. The deformation can lead to a permanent shape change or structural failure if the material is not strong enough.
Some models of continuum mechanics treat force as something that can change. Other models look at the deformation of matter and solid bodies, because the characteristics of matter and solids are three dimensional. Each approach can give different results. Classical models of continuum mechanics assume an average force and do not properly include "geometrical factors". (The geometry of the body can be important to how stress is shared out and how energy builds up during the application of the external force.)