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Harrison Ruffin Tyler
Harrison Ruffin Tyler (born November 9, 1928) is an American chemical engineer, businessperson and preservationist. He cofounded ChemTreat, Inc., a water treatment company, in 1968 and restored the Sherwood Forest Plantation. He is a son of Lyon Gardiner Tyler as well as the last living grandchild of former U.S. president John Tyler, and speaks on the history of his family. Tyler purchased Fort Pocahontas in 1996 and advocates for its preservation. Early life and education Harrison Ruffin Tyler was born on November 9, 1928 to Susan Ruffin and Lyon Gardiner Tyler. His paternal grandparents were Julia Gardiner and 10th US President John Tyler. Through his mother, he is a great-grandson of Edmund Ruffin, and a descendant of Benjamin Harrison IV, Robert Carter I and Pocahontas. She was a teacher and caretaker of the family's historical documents. Despite his familial connections, Tyler grew up poor during the Great Depression. Tyler, whose father died when he was a boy, was homes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most-populous city, and Fairfax County is the most-populous political subdivision. The Commonwealth's population was over 8.65million, with 36% of them living in the Baltimore–Washington metropolitan area. The area's history begins with several indigenous groups, including the Powhatan. In 1607, the London Company established the Colony of Virginia as the first permanent English colony in the New World. Virginia's state nickname, the Old Dominion, is a reference to this status. Slave labor and land acquired from displaced native tribes fueled the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemistry
Chemistry is the science, scientific study of the properties and behavior of matter. It is a natural science that covers the Chemical element, elements that make up matter to the chemical compound, compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a Chemical reaction, reaction with other Chemical substance, substances. Chemistry also addresses the nature of chemical bonds in chemical compounds. In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both Basic research, basic and Applied science, applied scientific disciplines at a fundamental level. For example, chemistry explains aspects of plant growth (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnston, South Carolina
Johnston is a town in Edgefield County, South Carolina, United States. The population was 2,362 at the 2010 census. It is part of the Augusta, Georgia, metropolitan area. The town's official welcome sign states that it is "Peach Capital of the World". History Johnston is called The Hub of the Ridge because it is located at the meeting place of the three river systems which flow away from the Ridge, a fertile plateau about long between clay hills to the north and sand hills to the south. The area has been settled since the mid-1700s. In 1791 as George Washington traveled through the area on his triumphal tour through the country, he stopped at the Lott family plantation, just east of Johnston. In the late 1860s, the Charlotte, Columbia and Augusta Railroad expanded westward from Columbia to Augusta. Edward Jones Mims, M.D., persuaded William Johnston, president of the railroad, to run the railroad through the Mims plantation. In return, Dr. Mims agreed to name the new town for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danaher Corporation
Danaher Corporation is an American globally diversified conglomerate with its headquarters in Washington, D.C. The company designs, manufactures, and markets professional, medical, industrial, and commercial products and services. The company's 3 platforms are " Life Sciences", "Diagnostics", and "Environmental & Applied Solutions". Danaher is ranked 130th on the Fortune 500 2021. The company is named after Danaher Creek in Western Montana. Founders Steven M. Rales and Mitchell Rales first conceptualized the company while fishing there. Danaher was one of the first companies in North America to adopt " Kaizen" principles to manufacturing, which is a lean manufacturing Japanese philosophy of continuous improvement, and elimination of waste. History The company was organized in 1969 as a Massachusetts real estate investment trust under its former name DMG, Inc. In 1978, DMG, Inc. was reorganized as a Florida corporation and changed its name to Diversified Mortgage Investors, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Employee Stock Ownership
Employee stock ownership, or employee share ownership, is where a company's employees own shares in that company (or in the parent company of a group of companies). US employees typically acquire shares through a share option plan. In the UK, Employee Share Purchase Plans are common, wherein deductions are made from an employee's salary to purchase shares over time. In Australia it is common to have all employee plans that provide employees with $1,000 worth of shares on a tax free basis. Such plans may be selective or all-employee plans. Selective plans are typically only made available to senior executives. All-employee plans offer participation to all employees (subject to certain qualifying conditions such as a minimum length of service). Most corporations use stock ownership plans as a form of an employee benefit. Plans in public companies generally limit the total number or the percentage of the company's stock that may be acquired by employees under a plan. Compared with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pulp (paper)
Pulp is a lignocellulosic fibrous material prepared by chemically or mechanically separating cellulose fibers from wood, fiber crops, waste paper, or rags. Mixed with water and other chemical or plant-based additives, pulp is the major raw material used in papermaking and the industrial production of other paper products. History Before the widely acknowledged invention of papermaking by Cai Lun in China around 105 AD, paper-like writing materials such as papyrus and amate were produced by ancient civilizations using plant materials which were largely unprocessed. Strips of bark or bast material were woven together, beaten into rough sheets, dried, and polished by hand. Pulp used in modern and traditional papermaking is distinguished by the process which produces a finer, more regular slurry of cellulose fibers which are pulled out of solution by a screen and dried to form sheets or rolls. The earliest paper produced in China consisted of bast fibers from the paper mulberr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Cooling
Cooling tower and water discharge of a nuclear power plant Water cooling is a method of heat removal from components and industrial equipment. Evaporative cooling using water is often more efficient than air cooling. Water is inexpensive and non-toxic; however, it can contain impurities and cause corrosion. Water cooling is commonly used for cooling automobile internal combustion engines and power stations. Water coolers utilising convective heat transfer are used inside high-end personal computers to lower the temperature of CPUs. Other uses include the cooling of lubricant oil in pumps; for cooling purposes in heat exchangers; for cooling buildings in HVAC and in chillers. Mechanism Advantages Water is inexpensive, non-toxic, and available over most of the earth's surface. Liquid cooling offers higher thermal conductivity than air cooling. Water has unusually high specific heat capacity among commonly available liquids at room temperature and atmospheric pressure allowing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glen Allen, Virginia
Glen Allen is a census-designated place (CDP) in Henrico County, Virginia, United States. The population was 16,187 as of the 2020 Census, up from 14,774 at the 2010 census. Areas outside the CDP which use a "Glen Allen" mailing address include residences in neighboring Hanover County. History Called "Mountain Road Crossing" when rail service began in 1836, the settlement which came to be known as Glen Allen took its name from the homestead of a local landowner, Mrs. Benjamin Allen. Its most noted resident was Captain John Cussons, a native Englishman, Confederate scout, author, and entrepreneur. Cussons made his residence here after the Civil War and founded a successful printing company. Later he built a fashionable resort hotel known as Forest Lodge adjacent to the railroad tracks. The area of Glen Allen used to be mostly rural farmland, but it is now a growing suburb of Richmond. Geography According to the United States Census Bureau, the CDP has a total area of , of which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corporate Culture
Historically there have been differences among investigators regarding the definition of organizational culture. Edgar Schein, a leading researcher in this field, defined "organizational culture" as comprising a number of features, including a shared "pattern of basic assumptions" which group members have acquired over time as they learn to successfully cope with internal and external organizationally relevant problems. Elliott Jaques first introduced the concept of culture in the organizational context in his 1951 book ''The Changing Culture of a Factory''. The book was a published report of "a case study of developments in the social life of one industrial community between April, 1948 and November 1950". The "case" involved a publicly-held British company engaged principally in the manufacture, sale, and servicing of metal bearings. The study concerned itself with the description, analysis, and development of corporate group behaviours. Ravasi and Schultz (2006) characterise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobil
Mobil is a petroleum brand owned and operated by American oil and gas corporation ExxonMobil. The brand was formerly owned and operated by an oil and gas corporation of the same name, which itself merged with Exxon to form ExxonMobil in 1999. A direct descendant of Standard Oil, Mobil was originally known as the Standard Oil Company of New York (shortened to Socony) after Standard Oil was Standard Oil Co. of New Jersey v. United States, split into 34 different entities in a 1911 Supreme Court decision. Socony merged with Vacuum Oil Company, from which the Mobil name first originated, in 1931 and subsequently renamed itself to Socony-Vacuum Oil Company. Over time, Mobil became the company's primary identity, which incited another renaming in 1963, this time to Mobil Corporation. Mobil credits itself with being the first company to introduce Pay at the pump, paying at the pump at its gas stations, the first company to produce jet aviation fuel, as well as the first company to intr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cincinnati, Ohio
Cincinnati ( ) is a city in the U.S. state of Ohio and the county seat of Hamilton County. Settled in 1788, the city is located at the northern side of the confluence of the Licking and Ohio rivers, the latter of which marks the state line with Kentucky. The city is the economic and cultural hub of the Cincinnati metropolitan area. With an estimated population of 2,256,884, it is Ohio's largest metropolitan area and the nation's 30th-largest, and with a city population of 309,317, Cincinnati is the third-largest city in Ohio and 64th in the United States. Throughout much of the 19th century, it was among the top 10 U.S. cities by population, surpassed only by New Orleans and the older, established settlements of the United States eastern seaboard, as well as being the sixth-most populous city from 1840 until 1860. As a rivertown crossroads at the junction of the North, South, East, and West, Cincinnati developed with fewer immigrants and less influence from Europe than Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soft Water
Hard water is water that has high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates. Hard drinking water may have moderate health benefits. It can pose critical problems in industrial settings, where water hardness is monitored to avoid costly breakdowns in boilers, cooling towers, and other equipment that handles water. In domestic settings, hard water is often indicated by a lack of foam formation when soap is agitated in water, and by the formation of limescale in kettles and water heaters.World Health OrganizatioHardness in Drinking-Water 2003 Wherever water hardness is a concern, water softening is commonly used to reduce hard water's adverse effects. Origins Natural rainwater, snow and other forms of precipitation typically have low concentrations of multivalent cations such as calcium and magnes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
