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Petroleum Remediation Product
Petroleum Remediation Product (PRP) is a registered trade name of United Remediation Technology for a line of biodegradable wax-based hydrocarbon adsorbents and bioremediation agents. PRP was created in the 1990s by NASA’s Jet Propulsion Laboratory and has been used to assist in remediating oil spills such as the 2010 Deepwater Horizon oil spill. PRP is a powder composed of microscopic hollow spheres of wax up to 150 microns in size. Properties PRP is a loose dry powder composed of hollow microspheres of beeswax, soy wax, and other natural waxes. PRP microspheres range in size from 10 microns to 150 microns. The waxes that comprise PRP are natural hydrocarbons making them oleophilic (having a strong affinity for oils rather than water) and hydrophobic. The high surface area and oleophilic properties of PRP allow the microspheres to adsorb at least twice PRP’s weight in hydrocarbons such as Crude Oil or Diesel. Research indicates that PRP stimulates the growth of hydrocarb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biodegradable
Biodegradation is the breakdown of organic matter by microorganisms, such as bacteria and fungi. It is generally assumed to be a natural process, which differentiates it from composting. Composting is a human-driven process in which biodegradation occurs under a specific set of circumstances. The process of biodegradation is threefold: first an object undergoes biodeterioration, which is the mechanical weakening of its structure; then follows biofragmentation, which is the breakdown of materials by microorganisms; and finally assimilation, which is the incorporation of the old material into new cells. In practice, almost all chemical compounds and materials are subject to biodegradation, the key element being time. Things like vegetables may degrade within days, while glass and some plastics take many millennia to decompose. A standard for biodegradability used by the European Union is that greater than 90% of the original material must be converted into , water and minerals by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yarrowia Lipolytica
''Yarrowia'' is a fungal genus in the family Dipodascaceae. For a while the genus was monotypic, containing the single species ''Yarrowia lipolytica'', a yeast that can use unusual carbon sources, such as hydrocarbons. This has made it of interest for use in industrial microbiology, especially for the production of specialty lipids. Molecular phylogenetics analysis has revealed several other species that have since been added to the genus. In January 2019, ''Yarrowia lipolytica'' yeast biomass was defined by the European Food Safety Authority as a safe novel food – dried and heat‐killed – with the underlying qualifications that it is widespread in nature, present in the typical environment, may be used as food for people over age 3 (3 grams per day for children under age 10, and 6 grams per day for teens and adults), and may be manufactured as a dietary supplement. Biology Habitat ''Yarrowia lipolytica'' has been isolated from various locations (e.g. milled c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Foundation
The Space Foundation is an American nonprofit organization whose mission is to advocate for all sectors of the global space industry through space awareness activities, educational programs, and major industry events. It was founded in 1983. Locations Located in Colorado Springs, Colorado, the Space Foundation's headquarters houses Space Foundation team offices, the Ackerman Conference Center and the Space Foundation Discovery Center. The Space Foundation also has an office in Washington, D.C., and representatives in Texas and Florida. Education The Space Foundation delivers K-12 student programs in laboratory, classroom and after-school settings. Programs include STEM, social studies, history, the arts and literature and are available to individual classes, school districts, public and private school, colleges and universities offering education curriculum and homeschool organizations. Discovery Center The Space Foundation Discovery Center is a space, science, and technolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modern Marvels
''Modern Marvels'' is an American worldwide television series that formerly aired on the History Channel and is currently shown on Story Television. The program focuses on how technologies affect and are used in modern society. It is History's first and longest-running program. It was first aired on A&E on December 10, 1992 under the banner "Time Machine." The series began airing on the History Channel in 1995 under its current title. Introduction Distinct from other History Channel series, the introduction of ''Modern Marvels'' features visuals and sounds of a bolt being turned by a ratchet wrench, followed by a partially computer-generated sequence involving construction workers building and hanging the title. Production Bruce Nash is credited with creating the series. Don Cambou acted as executive producer on more than 350 episodes for Actuality Productions, the production company behind the series. ''Modern Marvels'' has produced over 650 one-hour episodes topics that in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Channel
History (formerly The History Channel from January 1, 1995 to February 15, 2008, stylized as HISTORY) is an American pay television network and flagship channel owned by A&E Networks, a joint venture between Hearst Communications and the Disney General Entertainment Content division of the Walt Disney Company. The network was originally focused on history-based as well as social and science documentaries. During the late 2000s, History devolved into reality television programming. In addition to this change in format, the network has been criticized by many scientists, historians, and skeptics for broadcasting pseudo-documentaries and pseudoscientific, unsubstantiated, sensational investigative programming. As of February 2015, around 96,149,000 American households (82.6% of households with television) receive the network's flagship channel, History. International localized versions of History are available, in various forms, in India, Canada, Europe, Australia, the Middle East ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroseeding
Hydroseeding (or hydraulic mulch seeding, hydro-mulching, hydraseeding) is a planting process that uses a slurry of seed and mulch. It is often used as an erosion control technique on construction sites, as an alternative to the traditional process of broadcast seeding, broadcasting or sowing dry seed. Description The hydroseeding slurry is transported in a tank, either truck-mounted or trailer-mounted and sprayed over prepared ground. Helicopters have been used to cover larger areas. Aircraft application may also be used on burned wilderness areas Post fire seeding, after a fire, and in such uses may contain only soil stabilizer to avoid introducing Introduced species, non-native plant species. Hydroseeding is an alternative to the traditional process of broadcasting or sowing dry seed. A study conducted along the lower Colorado River in Arizona reported that hydroseeding could be used to restore riparian vegetation in cleared land. The slurry often has other ingredients includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Exxon Valdez Oil Spill
The ''Exxon Valdez'' oil spill occurred in Prince William Sound, Alaska, on March 24, 1989. ''Exxon Valdez'', an oil supertanker owned by Exxon Shipping Company bound for Long Beach, California struck Prince William Sound's Bligh Reef, west of Tatitlek, Alaska at 12:04 a.m. and spilled (or 37,000 tonnes) of crude oil over the next few days. The ''Exxon Valdez'' spill is the second largest in U.S. waters, after the 2010 ''Deepwater Horizon'' oil spill, in terms of volume of oil released. Prince William Sound's remote location, accessible only by helicopter, plane, or boat, made government and industry response efforts difficult and made existing response plans especially hard to implement. The region is a habitat for salmon, sea otters, seals, and seabirds. The oil, extracted from the Prudhoe Bay Oil Field, eventually affected of coastline, of which were heavily or moderately oiled. Spill ''Exxon Valdez'' was carrying of oil, of which approximately were spilled int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA Spinoff Technologies
NASA spinoff technologies are commercial products and services which have been developed with the help of NASA, through research and development contracts, such as Small Business Innovation Research (SBIR) or STTR awards, licensing of NASA patents, use of NASA facilities, technical assistance from NASA personnel, or data from NASA research. Information on new NASA technology that may be useful to industry is available in periodical and website form in "NASA Tech Briefs", while successful examples of commercialization are reported annually in the NASA publication "Spinoffs". The Spinoff publication has documented more than 2,000 technologies over time. In 1979, notable science fiction author Robert A. Heinlein helped bring awareness to the spinoffs when he was asked to appear before Congress after recovering from one of the earliest known vascular bypass operations to correct a blocked artery. In his testimony, reprinted in his 1980 book '' Expanded Universe'', Heinlein claimed that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marshall Space Flight Center
The George C. Marshall Space Flight Center (MSFC), located in Redstone Arsenal, Alabama (Huntsville postal address), is the U.S. government's civilian rocketry and spacecraft propulsion research center. As the largest NASA center, MSFC's first mission was developing the Saturn launch vehicles for the Apollo program. Marshall has been the lead center for the Space Shuttle main propulsion and external tank; payloads and related crew training; International Space Station (ISS) design and assembly; computers, networks, and information management; and the Space Launch System (SLS). Located on the Redstone Arsenal near Huntsville, MSFC is named in honor of General of the Army George C. Marshall. The center contains the Huntsville Operations Support Center (HOSC), also known as the International Space Station Payload Operations Center. This facility supports ISS launch, payload, and experiment activities at the Kennedy Space Center. The HOSC also monitors rocket launches from Cape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Attenuation
In physics, attenuation (in some contexts, extinction) is the gradual loss of flux intensity through a medium. For instance, dark glasses attenuate sunlight, lead attenuates X-rays, and water and air attenuate both light and sound at variable attenuation rates. Hearing protectors help reduce acoustic flux from flowing into the ears. This phenomenon is called acoustic attenuation and is measured in decibels (dBs). In electrical engineering and telecommunications, attenuation affects the propagation of waves and signals in electrical circuits, in optical fibers, and in air. Electrical attenuators and optical attenuators are commonly manufactured components in this field. Background In many cases, attenuation is an exponential function of the path length through the medium. In optics and in chemical spectroscopy, this is known as the Beer–Lambert law. In engineering, attenuation is usually measured in units of decibels per unit length of medium (dB/cm, dB/km, etc.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Fuel
Diesel fuel , also called diesel oil, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place without a spark as a result of compression of the inlet air and then injection of fuel. Therefore, diesel fuel needs good compression ignition characteristics. The most common type of diesel fuel is a specific fractional distillate of petroleum fuel oil, but alternatives that are not derived from petroleum, such as biodiesel, biomass to liquid (BTL) or gas to liquid (GTL) diesel are increasingly being developed and adopted. To distinguish these types, petroleum-derived diesel is sometimes called petrodiesel in some academic circles. In many countries, diesel fuel is standardised. For example, in the European Union, the standard for diesel fuel is EN 590. Diesel fuel has many colloquial names; most commonly, it is simply referred to as ''diesel''. In the United Kingdom, diesel fuel for on-road use is c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adsorbents
Adsorption is the adhesion of atoms, ions or molecules from a gas, liquid or dissolved solid to a surface. This process creates a film of the ''adsorbate'' on the surface of the ''adsorbent''. This process differs from absorption, in which a fluid (the ''absorbate'') is dissolved by or permeates a liquid or solid (the ''absorbent''). Adsorption is a '' surface phenomenon'', while absorption involves the whole volume of the material, although adsorption does often precede absorption. The term ''sorption'' encompasses both processes, while ''desorption'' is the reverse of it. Like surface tension, adsorption is a consequence of surface energy. In a bulk material, all the bonding requirements (be they ionic, covalent or metallic) of the constituent atoms of the material are fulfilled by other atoms in the material. However, atoms on the surface of the adsorbent are not wholly surrounded by other adsorbent atoms and therefore can attract adsorbates. The exact nature of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
