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Herbert A. Winkelmann
Herbert A. Winklemann (3 May 1893- 2 June 1965) was a chemist at B. F. Goodrich, known as a co-inventor (with Harold Gray) of the first antioxidant, AgeRite, developed in 1924 and marketed for rubber. He wrote an early account of rubber recycling, and he studied the mitigation of ozone cracking. He held 48 patents in the field of rubber technology, retiring as Technical Director at Dryden Rubber Co. Biography Winkelmann was born on 3 May 1893 in Swift County, Minnesota. He attended public schools in Appleton, Minnesota, graduating in 1910. He completed his undergraduate education in 1914 at North-Western College. He received a scholarship to the University of Illinois, where he completed a master's degree in chemistry in 1915. He continued as a graduate assistant at the University of Illinois for 3 years before resigning to enter military service. From 1917-1919 he was stationed at American University Experiment Station in Washington, D.C., and at Lakehurst Proving Groun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antioxidant
Antioxidants are compounds that inhibit oxidation, a chemical reaction that can produce free radicals. This can lead to polymerization and other chain reactions. They are frequently added to industrial products, such as fuels and lubricants, to prevent oxidation, and to foods to prevent spoilage, in particular the rancidification of oils and fats. In cells, antioxidants such as glutathione, mycothiol or bacillithiol, and enzyme systems like superoxide dismutase, can prevent damage from oxidative stress. The only dietary antioxidants are vitamins A, C, and E, but the term ''antioxidant'' has also been applied to numerous other dietary compounds that only have antioxidant properties in vitro, with little evidence for antioxidant properties in vivo. Dietary supplements marketed as antioxidants have not been shown to maintain health or prevent disease in humans. History As part of their adaptation from marine life, terrestrial plants began producing non-marine antioxi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recycling
Recycling is the process of converting waste materials into new materials and objects. The recovery of energy from waste materials is often included in this concept. The recyclability of a material depends on its ability to reacquire the properties it had in its original state. It is an alternative to "conventional" waste disposal that can save material and help lower greenhouse gas emissions. It can also prevent the waste of potentially useful materials and reduce the consumption of fresh raw materials, reducing energy use, air pollution (from incineration) and water pollution (from landfilling). Recycling is a key component of modern waste reduction and is the third component of the "Reduce, Reuse, and Recycle" waste hierarchy. It promotes environmental sustainability by removing raw material input and redirecting waste output in the economic system. There are some ISO standards related to recycling, such as ISO 15270:2008 for plastics waste and ISO 14001:2015 for enviro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozone Cracking
Cracks can be formed in many different elastomers by ozone attack, and the characteristic form of attack of vulnerable rubbers is known as ozone cracking. The problem was formerly very common, especially in tires, but is now rarely seen in those products owing to preventive measures. However, it does occur in many other safety-critical items such as fuel lines and rubber seals, such as gaskets and O-rings, where ozone attack is considered unlikely. Only a trace amount of the gas is needed to initiate cracking, and so these items can also succumb to the problem. Susceptible elastomers Tiny traces of ozone in the air will attack double bonds in rubber chains, with natural rubber, polybutadiene, styrene-butadiene rubber and nitrile rubber being most sensitive to degradation. Every repeat unit in the first three materials has a double bond, so every unit can be degraded by ozone. Nitrile rubber is a copolymer of butadiene and acrylonitrile units, but the proportion of acrylonitrile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BHR Partners
BHR Partners (Bohai Harvest RST (Shanghai) Equity Investment Fund Management Co., Ltd.) is a private investment fund founded in 2013 by Bohai Industrial Investment Fund Management Co., Ltd., which is controlled by Bank of China Limited along with a partnership with Hunter Biden, and whose focus is on mergers and acquisitions, and investment in, and reforms, of state-owned enterprise. Business Overview BHR was established specifically for the purpose of capital injection into Sinopec Marketing Co., in accordance with the laws of the PRC. Its registered address is China (Shanghai) Pilot Free Trade Zone and principal place of business at Unit 3101, 31/F, Tower 2, China Central Place, 79 Jianguo Road, Chaoyang District, Beijing." BHR was one of twenty-five investors to take part in the capital injection of Sinopec Marketing Co. and their investment of approximately (US)$1,700,000,000 dollars was the 7th largest of the group, giving them a 1.68% shareholding interest out of an availa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swift County, Minnesota
Swift County is a county in the U.S. state of Minnesota. As of the 2020 census, the population was 9,838. Its county seat is Benson. History Swift County is in west central Minnesota and consists of with three tiers of seven townships each. It was established on February 18, 1870, and named for Henry Adoniram Swift, the third governor of Minnesota (1863–64). The Indians had grievances against the government, including delays in sending annuities that caused near starvation several times. In August 1862, an Indian rebellion broke out in Minnesota. The warfare reached the settlements just getting started in northeastern Swift County. By late September 1862, the Indian War was almost over but the settlers hesitated to venture back to Swift County until 1865, when all danger was apparently over. Scandinavians and Germans were in decided majority among the early settlers. A number of them came with the honor and privileges of Civil War veterans. In 1869, the St. Paul & Pacifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Appleton, Minnesota
Appleton is a city in Swift County, Minnesota, United States. Its population was 1,412 at the 2010 census. The town is home to a vacant medium-security prison, the Prairie Correctional Facility, which is wholly owned and operated by Corrections Corporation of America. Appleton also includes a plant-protein factory operated by Eat Just, Inc. Elmer A. Benson, who served as a United States Senator and as governor of Minnesota, was born in Appleton on September 22, 1895. Appleton is also home to many retirees and military veterans. All of its twenty-odd streets, except Minnesota Street, are named for local veterans who died in combat. History Appleton was laid out in 1872, and named after Appleton, Wisconsin. A post office has been in operation at Appleton since 1873. Appleton was incorporated in 1881. Gethsemane Episcopal Church, on North Hering Street at Snelling Avenue, was built in 1879 and was listed on the National Register of Historic Places in 2011. Geography Accordi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North-Western College
North Central College is a private college in Naperville, Illinois. It is affiliated with the United Methodist Church and has nearly 70 areas of study in undergraduate majors, minors, and programs through 19 academic departments organized in three undergraduate colleges/schools (College of Arts and Sciences, School of Business and Entrepreneurship, School of Education and Health Sciences) and a masters program (School of Graduate and Professional Studies). History North Central College was founded in 1861 as Plainfield College in Plainfield, Illinois. Classes were first held on November 11 of that year. On February 15, 1864, the Board of Trustees changed the name of the school to North-Western College. The college moved to Naperville in 1870 and the name was again changed in 1926 to North Central College. In June 2017, North Central College acquired Shimer College and instituted the Shimer Great Books School of North Central College. North Central College is just 30 minutes fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Illinois
The University of Illinois Urbana-Champaign (U of I, Illinois, University of Illinois, or UIUC) is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the University of Illinois system and was founded in 1867. Enrolling over 56,000 undergraduate and graduate students, the University of Illinois is one of the largest public universities by enrollment in the country. The University of Illinois Urbana-Champaign is a member of the Association of American Universities and is classified among "R1: Doctoral Universities – Very high research activity". In fiscal year 2019, research expenditures at Illinois totaled $652 million. The campus library system possesses the second-largest university library in the United States by holdings after Harvard University. The university also hosts the National Center for Supercomputing Applications and is home to the fastest supercomputer on a university campus. The u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American University Experiment Station
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakehurst Proving Ground , the location of the Hindenburg Disaster
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There are a number of places named Lakehurst: *Lakehurst, New Jersey *Lakehurst High School, a fictional school in ''Degrassi: The Next Generation'' *Lakehurst Mall, a defunct shopping complex in Waukegan, Illinois *Naval Air Engineering Station Lakehurst Lakehurst Maxfield Field, formerly known as Naval Air Engineering Station Lakehurst (NAES Lakehurst), is the naval component of Joint Base McGuire–Dix–Lakehurst (JB MDL), a United States Air Force-managed joint base headquartered approximately ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakehurst, New Jersey
Lakehurst is a borough in Ocean County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 2,654,"DataUniverse - 2010 Census Populations: Ocean County" ''''. Accessed December 26, 2012.DP-1 - Profile of General Population and Housing Characteristics: 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Warfare Service
The Chemical Corps is the branch of the United States Army tasked with defending against chemical, biological, radiological, and nuclear (CBRN) weapons. The Chemical Warfare Service was established on 28 June 1918, combining activities that until then had been dispersed among five separate agencies of the United States federal government. It was made a permanent branch of the Regular Army by the National Defense Act of 1920. In 1945, it was redesignated the Chemical Corps. History Origins Discussion of the topic dates back to the American Civil War. A letter to the War Department dated 5 April 1862 from New York City resident John Doughty proposed the use of chlorine shells to drive the Confederate Army from its positions. Doughty included a detailed drawing of the shell with his letter. It is unknown how the military reacted to Doughty's proposal but the letter was unnoticed in a pile of old official documents until modern times. Another American, Forrest Shepherd, also propo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
