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Heli Jantunen
Heli Maarit Jantunen (born December 10, 1958) is a Finnish Professor of Technology at the University of Oulu and a member of the Scientific Advisory Board for the National Defense. She works on microelectronics and is a member of the 6G Flagship. Education and early career Jantunen studied at the University of Oulu. After graduating, she studied a range of graduate degrees and eventually spent ten years in industry. In 2001 she returned to the University of Oulu for her doctoral studies, studying ceramic materials for use in telecommunications. She used low temperature co-firing ceramics to create radio frequency and microwave components. She was appointed to the faculty at the University of Oulu in 2004. Research and career Jantunen was made Head of the Department of Electrical Engineering at the University of Oulu in 2008. Jantunen was supported by a European Research Council grant to investigate low temperature ceramics. She is interested in materials that can be printed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Oulu
The University of Oulu () is one of the largest universities in Finland, located in the city of Oulu. It was founded on July 8, 1958. The university has around 14,200 students and 3,800 staff. 21 International Master's Programmes are offered at the university. The university is often ranked as one of the best universities in Finland and in the top 400 worldwide. History * 1919 Oulu College Association was founded to manage the establishment of a university in the town * 1958 Oulu University Act * 1959 Activities begin. Faculty of Philosophy (programs in biology and mathematics), Faculty of Technology (architecture, civil and industrial engineering) and Oulu Teaching School * 1960 Faculty of Medicine * 1965 Teaching begins in humanities * 1965 Departments of Electrical Engineering and Machine Engineering added to the Faculty of Technology * 1972 The Faculty of Humanities and the Faculty of Natural Sciences founded with the division of the Faculty of Philosophy * 1974 Facul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymer
A polymer () is a chemical substance, substance or material that consists of very large molecules, or macromolecules, that are constituted by many repeat unit, repeating subunits derived from one or more species of monomers. Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in everyday life. Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental to biological structure and function. Polymers, both natural and synthetic, are created via polymerization of many small molecules, known as monomers. Their consequently large molecular mass, relative to small molecule compound (chemistry), compounds, produces unique physical property, physical properties including toughness, high rubber elasticity, elasticity, viscoelasticity, and a tendency to form Amorphous solid, amorphous and crystallization of polymers, semicrystalline structures rath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1958 Births
Events January * January 1 – The European Economic Community (EEC) comes into being. * January 3 – The West Indies Federation is formed. * January 4 ** Edmund Hillary's Commonwealth Trans-Antarctic Expedition completes the third overland journey to the South Pole, the first to use powered vehicles. ** Sputnik 1 (launched on October 4, 1957) falls towards Earth from its orbit and burns up. * January 13 – Battle of Edchera: The Moroccan Army of Liberation ambushes a Spanish patrol. * January 27 – A Soviet-American executive agreement on cultural, educational and scientific exchanges, also known as the "Lacy-Zarubin Agreement, Lacy–Zarubin Agreement", is signed in Washington, D.C. February * February 1 – Egypt and Syria unite to form the United Arab Republic. * February 2 – The ''Falcons'' aerobatic team of the Pakistan Air Force led by Wg Cdr Zafar Masud (air commodore), Mitty Masud set a World record loop, world record performing a 16 aircraft diamon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finnish Women Scientists
Finnish may refer to: * Something or someone from, or related to Finland * Culture of Finland * Finnish people or Finns, the primary ethnic group in Finland * Finnish language, the national language of the Finnish people * Finnish cuisine See also * Finish (other) * Finland (other) * Suomi (other) Suomi means ''Finland'' in Finnish. Suomi may also refer to: *Finnish language Finnish (endonym: or ) is a Finnic languages, Finnic language of the Uralic languages, Uralic language family, spoken by the majority of the population in Finla ... * {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Taipei University Of Technology
National Taipei University of Technology (Taipei Tech; ) is a public university in Taipei, Taiwan. It is a member of the Global Research & Industry Alliance (Gloria) of the Ministry of Science and Technology of the Republic of China, Ministry of Science and Technology and accredited by AACSB. Located in the Daan district of Taipei, the school was established in 1912 as the School of Industrial Instruction, one of the earliest intermediate-higher educational institutions in Taiwan. The current president of the university is Sea-Fue Wang. The university is part of the University System of Taipei, along with National Taipei University and Taipei Medical University. Its comprehensive undergraduate and graduate programs offer degrees in the STEM fields as well as design, architecture, management, humanities, and social sciences. It is also a part of the University Academic Alliance in Taiwan or UAAT, composed of the Top 12 academic institutions in Taiwan chosen by the Ministry of Edu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linköping University
Linköping University (LiU; ) is a public university, public research university based in Linköping, Sweden. Originally established in 1969, it was granted full university status in 1975 and is one of Sweden's largest academic institutions. The university has four campuses across three cities: Campus Valla and Campus US in Linköping, Campus Norrköping in Norrköping and Campus Lidingö in Stockholm. It is organized into four faculties: Arts and Sciences; Medicine and Health Sciences; Science and Engineering (also referred to as the Linköping Institute of Technology, Institute of Technology); and Educational Sciences. To facilitate interdisciplinary work, there are 12 large departments combining knowledge from several disciplines and often belonging under more than one faculty. In 2021 the university had 35,900 students and 4,300 employees. Linköping University emphasizes dialogue with the surrounding business sphere and the community at large, both in terms of research and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Nanotube
A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometre range ( nanoscale). They are one of the allotropes of carbon. Two broad classes of carbon nanotubes are recognized: * ''Single-walled carbon nanotubes'' (''SWCNTs'') have diameters around 0.5–2.0 nanometres, about 100,000 times smaller than the width of a human hair. They can be idealised as cutouts from a two-dimensional graphene sheet rolled up to form a hollow cylinder. * ''Multi-walled carbon nanotubes'' (''MWCNTs'') consist of nested single-wall carbon nanotubes in a nested, tube-in-tube structure. Double- and triple-walled carbon nanotubes are special cases of MWCNT. Carbon nanotubes can exhibit remarkable properties, such as exceptional tensile strength and thermal conductivity because of their nanostructure and strength of the bonds between carbon atoms. Some SWCNT structures exhibit high electrical conductivity while others are semiconductors. In addition, carbon nanotubes can b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sintering
Sintering or frittage is the process of compacting and forming a solid mass of material by pressure or heat without melting it to the point of liquefaction. Sintering happens as part of a manufacturing process used with metals, ceramics, plastics, and other materials. The atoms/molecules in the sintered material diffuse across the boundaries of the particles, fusing the particles together and creating a solid piece. Since the sintering temperature does not have to reach the melting point of the material, sintering is often chosen as the shaping process for materials with extremely high melting points, such as tungsten and molybdenum. The study of sintering in metallurgy, metallurgical powder-related processes is known as powder metallurgy. An example of sintering can be observed when ice cubes in a glass of water adhere to each other, which is driven by the temperature difference between the water and the ice. Examples of pressure-driven sintering are the compacting of snowfa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat Sensitive
Heat intolerance is a symptom characterized by feeling overheated in warm environments or when the surrounding environment's temperature rises. Typically, the person feels uncomfortably hot and sweats excessively. Compared to heat illnesses like heatstroke, heat intolerance is usually a symptom of endocrine disorders, drugs, or other medical conditions, rather than the result of too much exercise or hot, humid weather. Symptoms * Feeling subjectively hot * Sweating, which may be excessive In patients with multiple sclerosis (MS), heat intolerance may cause a pseudoexacerbation, which is a temporary worsening of MS-related symptoms. A temporary worsening of symptoms can also happen in patients with postural orthostatic tachycardia syndrome (POTS) and dysautonomia. Diagnosis Diagnosis is largely made from the patient history, followed by blood tests and other medical tests to determine the underlying cause. In women, hot flashes must be excluded. Causes Excess thyroid hormone, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor
A semiconductor is a material with electrical conductivity between that of a conductor and an insulator. Its conductivity can be modified by adding impurities (" doping") to its crystal structure. When two regions with different doping levels are present in the same crystal, they form a semiconductor junction. The behavior of charge carriers, which include electrons, ions, and electron holes, at these junctions is the basis of diodes, transistors, and most modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called " metalloid staircase" on the periodic table. After silicon, gallium arsenide is the second-most common semiconductor and is used in laser diodes, solar cells, microwave-frequency integrated circuits, and others. Silicon is a critical element for fabricating most electronic circuits. Semiconductor devices can display a range of different useful properties, such as passing current more easil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
