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Olusegun Adewoye
Olusegun O. Adewoye (1947–2015) was the director general and chief executive of the National Agency for Science and Engineering Infrastructure (NASENI), Abuja, Nigeria. Early life and education Olusegun Oyeleke Adewoye (born 1947, Ilesa, Osun State, Nigeria; died 2015, Abuja, FCT, Nigeria) was a professor of Materials Science and Engineering of Yoruba Nigerian descent. He obtained a high school certificate from Comprehensive High School, Aiyetoro, Nigeria in 1968, and BSc degree in Metallurgy from University of Manchester, Manchester, England in 1973. In 1976, he obtained a PhD degree in Metallurgy and Materials Science from University of Cambridge, Cambridge, England. Professor Adewoye joined thEngineering Materials Development Institute (EMDI) Akure as director and chief executive. His work at this institute includes Foundry Technology Education Center, rotary furnaces, ceramic kiln, Austempered Ductile Iron Technology and Carbo-Nitriding Strengthening of Ferrous Alloy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ilesa
Ilesa () is an ancient town located in the Osun State, southwest Nigeria; it is also the name of a historic kingdom (also known as Ijesha) centred on that village. The state is ruled by a monarch bearing the title of the Owa Obokun Adimula of Ijesaland. The state of Ilesa consisted of Ilesa itself and a number of smaller surrounding cities. The Ijesa, a term also denoting the people of the state of Ilesa, are part of the present Osun State of Nigeria. Some of the popular towns of the Ijesa are Odo-Ijesa, Ilaje, Igbogi, Ise-Ijesa, Ibokun, Erin Ijesa, Ijeda-Ijesa, Ipetu Jesa, Ijebu-Jesa, Esa-Oke,Esa Odo, Ipole Ijesa, Ifewara Ijesa, Ipo Arakeji, Iloko Ijesa, Iwara Ijesa, Iperindo Ijesa, Erinmo Ijesa, Iwaraja Ijesa, Oke-Ana Ijesa, Idominasi, Ilase Ijesa, Igangan ijesa, Imo Ijesa, Alakowe Ijesa, Osu Ijesa, Eti Oni, Itaore, Itagunmodi, Iyinta, Itaapa, Epe Ijesa, Omo Ijesa, Eti-oni, Ibokun, Inila, Ijinla, Iloba Ijesa, Odo Ijesa, Imogbara Ijesa, Eseun Ijesa, Iloo, Owena Ijesa, Ido Ijesa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotary Kiln
A rotary kiln is a pyroprocessing device used to raise materials to a high temperature (calcination) in a continuous process. Materials produced using rotary kilns include: * Cement * Lime * Refractories * Metakaolin * Titanium dioxide * Alumina * Vermiculite * Iron ore pellets They are also used for roasting a wide variety of sulfide ores prior to metal extraction. Principle of operation The kiln is a cylindrical vessel, inclined slightly from the horizontal, which is rotated slowly about its longitudinal axis. The process feedstock is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down toward the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co-current), but usually in the opposite direction (counter-current). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Materials Research Society
African or Africans may refer to: * Anything from or pertaining to the continent of Africa: ** People who are native to Africa, descendants of natives of Africa, or individuals who trace their ancestry to indigenous inhabitants of Africa *** Ethnic groups of Africa *** Demographics of Africa *** African diaspora ** African, an adjective referring to something of, from, or related to the African Union ** Citizenship of the African Union ** Demographics of the African Union **Africanfuturism ** African art ** *** African jazz (other) ** African cuisine ** African culture ** African languages ** African music ** African Union ** African lion, a lion population in Africa Books and radio * ''The African'' (essay), a story by French author J. M. G. Le Clézio * ''The African'' (Conton novel), a novel by William Farquhar Conton * ''The African'' (Courlander novel), a novel by Harold Courlander * ''The Africans'' (radio program) Music * "African", a song by Peter Tosh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Princeton University
Princeton University is a private university, private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial Colleges, fourth-oldest institution of higher education in the United States and one of the nine colonial colleges chartered before the American Revolution. It is one of the highest-ranked universities in the world. The institution moved to Newark, New Jersey, Newark in 1747, and then to the current site nine years later. It officially became a university in 1896 and was subsequently renamed Princeton University. It is a member of the Ivy League. The university is governed by the Trustees of Princeton University and has an endowment of $37.7 billion, the largest List of colleges and universities in the United States by endowment, endowment per student in the United States. Princeton provides undergraduate education, undergraduate and graduate education, graduate in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant university and the founding campus of the University of California system. Its fourteen colleges and schools offer over 350 degree programs and enroll some 31,800 undergraduate and 13,200 graduate students. Berkeley ranks among the world's top universities. A founding member of the Association of American Universities, Berkeley hosts many leading research institutes dedicated to science, engineering, and mathematics. The university founded and maintains close relationships with three national laboratories at Berkeley, Livermore and Los Alamos, and has played a prominent role in many scientific advances, from the Manhattan Project and the discovery of 16 chemical elements to breakthroughs in computer science and genomics. Berkeley is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Fellow
A research fellow is an academic research position at a university or a similar research institution, usually for academic staff or faculty members. A research fellow may act either as an independent investigator or under the supervision of a principal investigator. Although research fellow positions vary in different countries and academic institutions, it is in general that they are junior researchers who try to develop their research careers under the guidance of senior researchers. United Kingdom In many universities this position is a career grade of a ''Research Career Pathway'', following on from a postdoctoral position such as research associate, and may be open-ended, subject to normal probation regulations. Within such a path, the next two higher career grades are usually senior research fellow and professorial fellow. Although similar to the position of a research fellow, these two positions are research only posts, with the rise of the career grade there will normal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CAD/CAM
CAD/CAM refers to the integration of Computer-aided design (CAD) and Computer-aided manufacturing (CAM). Both of these require powerful computers. ''CAD'' software helps designers and draftsmen; ''CAM'' "reduces manpower costs" in the manufacturing process. Overview Both ''CAD'' and ''CAM'' are computer-intensive. Although, in 1981, Computervision was #1 and IBM was #2, IBM had a major advantage: its systems could accommodate "eight to 20" users at a time, whereas most competitors only had enough power to accommodate "four to six." ''CAD/CAM'' was described by ''The New York Times'' as a "computerized design and manufacturing process" that made its debut "when Computervision pioneered it in the 1970's." Other 1980s major players in ''CAD/CAM'' included General Electric and Parametric Technology Corporation; the latter subsequently acquired Computervision, which had been acquired by Prime Computer. CAD/CAM originated in the 1960s; an IBM 360/44 was used to build via ''CNC'' t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanotechnology
Nanotechnology, also shortened to nanotech, is the use of matter on an atomic, molecular, and supramolecular scale for industrial purposes. The earliest, widespread description of nanotechnology referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products, also now referred to as molecular nanotechnology. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative, which defined nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers (nm). This definition reflects the fact that quantum mechanical effects are important at this quantum-realm scale, and so the definition shifted from a particular technological goal to a research category inclusive of all types of research and technologies that deal with the special properties of matter which occur below the given size threshold. It is therefore common to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymers
A polymer (; Greek '' poly-'', "many" + ''-mer'', "part") is a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits. 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 compounds, produces unique physical properties including toughness, high elasticity, viscoelasticity, and a tendency to form amorphous and semicrystalline structures rather than crystals. The term "polymer" derives from the Greek word πολύς (''polus'', meaning "many, much") and μέρος (''meros'', meani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light-emitting Diode
A light-emitting diode (LED) is a semiconductor device that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. The color of the light (corresponding to the energy of the photons) is determined by the energy required for electrons to cross the band gap of the semiconductor. White light is obtained by using multiple semiconductors or a layer of light-emitting phosphor on the semiconductor device. Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared (IR) light. Infrared LEDs are used in remote-control circuits, such as those used with a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red. Early LEDs were often used as indicator lamps, replacing small incandescent bulbs, and in seven-segment displays. Later developments produced LEDs available in visible, ultraviolet (UV) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Solar Cell
An organic solar cell (OSC) or plastic solar cell is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for light absorption and charge transport to produce electricity from sunlight by the photovoltaic effect. Most organic photovoltaic cells are polymer solar cells. The molecules used in organic solar cells are solution-processable at high throughput and are cheap, resulting in low production costs to fabricate a large volume. Combined with the flexibility of organic molecules, organic solar cells are potentially cost-effective for photovoltaic applications. Molecular engineering (''e.g.,'' changing the length and functional group of polymers) can change the band gap, allowing for electronic tunability. The optical absorption coefficient of organic molecules is high, so a large amount of light can be absorbed with a small amount of materials, usually on the order of hundreds of nan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Publications
To publish is to make content available to the general public.Berne Convention, article 3(3) URL last accessed 2010-05-10.Universal Copyright Convention, Geneva text (1952), article VI . URL last accessed 2010-05-10. While specific use of the term may vary among countries, it is usually applied to text, images, or other content, including paper ( |
