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ArcelorMittal Dofasco
ArcelorMittal Dofasco is a steel company based in Hamilton, Ontario, Canada. Dofasco is a standalone subsidiary of ArcelorMittal, the world's largest integrated steel producer. History Clifton and Frank A. Sherman founded Dominion Foundries and Steel in 1912, creating a giant that would bring prosperity and identity to the city of Hamilton, Ontario. Dofasco was incorporated as Dominion Steel Castings Company Limited in 1912, becoming Dominion Foundries and Steel Company in 1917. Sherman Mine opened in 1968 and closed in 1990. Its longtime nickname "Dofasco" was adopted as its legal name in 1980. Frank H. Sherman (Frank A.'s son) introduced to Dofasco and North America in 1954 the method of steel production known as basic oxygen steelmaking (BOS), thus rendering former processes obsolete because, with respect to them, the same quantity of steel from a BOS process is manufactured in one-twelfth the time. Basic oxygen steelmaking is superior to previous steelmaking methods beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Steelworkers Of America
The United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union, commonly known as the United Steelworkers (USW), is a general trade union with members across North America. Headquartered in Pittsburgh, the United Steelworkers represents workers in Canada, the Caribbean, and the United States. The United Steelworkers represent workers in a diverse range of industries, including primary and fabricated metals, paper, chemicals, glass, rubber, heavy-duty conveyor belting, tires, transportation, utilities, container industries, pharmaceuticals, call centers and health care. The United Steelworkers is currently affiliated with the AFL–CIO in the United States and the Canadian Labour Congress (CLC) in Canada as well as several international union federations. On July 2, 2008, the United Steelworkers signed an agreement to merge with the United Kingdom and Ireland–based union Unite to form a new global union en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Pollution
Air pollution is the contamination of air due to the presence of substances in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials. There are many different types of air pollutants, such as gases (including ammonia, carbon monoxide, sulfur dioxide, nitrous oxides, methane, carbon dioxide and chlorofluorocarbons), particulates (both organic and inorganic), and biological molecules. Air pollution can cause diseases, allergies, and even death to humans; it can also cause harm to other living organisms such as animals and food crops, and may damage the natural environment (for example, climate change, ozone depletion or habitat degradation) or built environment (for example, acid rain). Air pollution can be caused by both human activities and natural phenomena. Air pollution is a significant risk factor for a number of pollution-related diseases, including respiratory infections, heart dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Of Ontario
The government of Ontario (french: Gouvernement de l'Ontario) is the body responsible for the administration of the Canadian province of Ontario. A constitutional monarchy, the Crown—represented in the province by the lieutenant governor—is the corporation sole, assuming distinct roles: the executive, as the ''Crown-in-Council''; the legislature, as the '' Crown-in-Parliament''; and the courts, as the ''Crown-on-the-Bench''. The functions of the government are exercised on behalf of three institutions—the Executive Council; the Provincial Parliament (Legislative Assembly); and the judiciary, respectively. Its powers and structure are partly set out in the ''Constitution Act, 1867''. The term ''Government of Ontario'' refers specifically to the executive—political ministers of the Crown (the Cabinet/Executive Council), appointed on the advice of the premier, and the non-partisan Ontario Public Service (whom the Executive Council directs), who staff ministries a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamilton Harbour
Hamilton Harbour, formerly known as Burlington Bay, lies on the western tip of Lake Ontario, bounded on the northwest by the City of Burlington, on the south by the City of Hamilton, and on the east by Hamilton Beach (south of the Burlington Bay James N. Allan Skyway) and Burlington Beach (north of the channel). It is joined to Cootes Paradise by a narrow channel formerly excavated for the Desjardins Canal. Within Hamilton itself, it is referred to as "Hamilton Harbour", "The Harbour" and "The Bay". The bay is naturally separated from Lake Ontario by a sand bar. The opening in the north end was filled in and channel cut in the middle for ships to pass. The Port of Hamilton is on the Hamilton side of the harbour. History Hamilton Harbour was known among the Mississauga Anishinaabek as ''Wiikwedong'' simply meaning "at the Bay". Another early name for the bay, given by Indigenous people was ''Macassa'', meaning 'beautiful waters'. Early Settlers to the area called the bay La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenols
In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of one or more hydroxyl groups (— O H) bonded directly to an aromatic hydrocarbon group. The simplest is phenol, . Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the molecule. Phenols are both synthesized industrially and produced by plants and microorganisms. Properties Acidity Phenols are more acidic than typical alcohols. The acidity of the hydroxyl group in phenols is commonly intermediate between that of aliphatic alcohols and carboxylic acids (their pKa is usually between 10 and 12). Deprotonation of a phenol forms a corresponding negative phenolate ion or phenoxide ion, and the corresponding salts are called phenolates or phenoxides (aryloxides according to the IUPAC Gold Book). Condensation with aldehydes and ketones Phenols are susceptible to Electrophilic aromatic substitutions. Condensation with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solvents
A solvent (s) (from the Latin '' solvō'', "loosen, untie, solve") is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid. Water is a solvent for polar molecules and the most common solvent used by living things; all the ions and proteins in a cell are dissolved in water within the cell. The quantity of solute that can dissolve in a specific volume of solvent varies with temperature. Major uses of solvents are in paints, paint removers, inks, and dry cleaning. Specific uses for organic solvents are in dry cleaning (e.g. tetrachloroethylene); as paint thinners ( toluene, turpentine); as nail polish removers and solvents of glue (acetone, methyl acetate, ethyl acetate); in spot removers ( hexane, petrol ether); in detergents ( citrus terpenes); and in perfumes (ethanol). Solvents find various applications in chemical, pharmaceutical, oil, and gas industries, including in c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammonia
Ammonia is an inorganic compound of nitrogen and hydrogen with the formula . A stable binary hydride, and the simplest pnictogen hydride, ammonia is a colourless gas with a distinct pungent smell. Biologically, it is a common nitrogenous waste, particularly among aquatic organisms, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to 45% of the world's food and fertilizers. Around 70% of ammonia is used to make fertilisers in various forms and composition, such as urea and Diammonium phosphate. Ammonia in pure form is also applied directly into the soil. Ammonia, either directly or indirectly, is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products. It is mainly collected by downward displacement of both air and water. Although common in nature—both terrestrially and in the outer planets of the Solar System—and in wide use, ammonia i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phosphorus
Phosphorus is a chemical element with the symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has a concentration in the Earth's crust of about one gram per kilogram (compare copper at about 0.06 grams). In minerals, phosphorus generally occurs as phosphate. Elemental phosphorus was first isolated as white phosphorus in 1669. White phosphorus emits a faint glow when exposed to oxygen – hence the name, taken from Greek mythology, meaning 'light-bearer' (Latin ), referring to the "Morning Star", the planet Venus. The term '' phosphorescence'', meaning glow after illumination, derives from this property of phosphorus, although the word has since been used for a different physical process that produces a glow. The glow of phosphorus is caused by oxidation of the white (but not red) phosphorus — a process now called chemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanide
Cyanide is a naturally occurring, rapidly acting, toxic chemical that can exist in many different forms. In chemistry, a cyanide () is a chemical compound that contains a functional group. This group, known as the cyano group, consists of a carbon atom triple-bonded to a nitrogen atom. In inorganic cyanides, the cyanide group is present as the anion . Soluble salts such as sodium cyanide (NaCN) and potassium cyanide (KCN) are highly toxic. Hydrocyanic acid, also known as hydrogen cyanide, or HCN, is a highly volatile liquid that is produced on a large scale industrially. It is obtained by acidification of cyanide salts. Organic cyanides are usually called nitriles. In nitriles, the group is linked by a covalent bond to carbon. For example, in acetonitrile (), the cyanide group is bonded to methyl (). Although nitriles generally do not release cyanide ions, the cyanohydrins do and are thus rather toxic. Bonding The cyanide ion is isoelectronic with carbon m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discharge (hydrology)
In hydrology, discharge is the volumetric flow rate of water that is transported through a given cross-sectional area. It includes any suspended solids (e.g. sediment), dissolved chemicals (e.g. CaCO3(aq)), or biologic material (e.g. diatoms) in addition to the water itself. Terms may vary between disciplines. For example, a fluvial hydrologist studying natural river systems may define discharge as streamflow, whereas an engineer operating a reservoir system may equate it with outflow, contrasted with inflow. Theory and calculation A discharge is a measure of the quantity of any fluid flow over unit time. The quantity may be either volume or mass. Thus the water discharge of a tap (faucet) can be measured with a measuring jug and a stopwatch. Here the discharge might be 1 litre per 15 seconds, equivalent to 67 ml/second or 4 litres/minute. This is an average measure. For measuring the discharge of a river we need a different method and the most common is the 'area-velocity' method. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copps Coliseum
FirstOntario Centre (originally Copps Coliseum) is a sports and entertainment arena at the corner of Bay Street North and York Boulevard in Hamilton, Ontario, Canada. Opened in 1985, it has a capacity of up to 19,000. History Hamilton was left without a large ice hockey venue after the Barton Street Arena was demolished in 1977, and even that arena had a small seating capacity by modern standards. Construction on the new site was started in 1983 and completed two years later at a cost of $33.5 million, with an additional $2.3 million spent on a parking garage. The project was overseen by Hamiltonian Joseph Pigott. The arena was originally named Copps Coliseum after long-time mayor Victor Copps, the patriarch of a Hamilton political family that includes his daughter, former Member of Parliament of Canada and Member of Provincial Parliament of Ontario Sheila Copps, and wife, Geraldine, who was a long-time councillor. The arena's first scoreboard was purchased fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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