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Biography
Chiswell Langhorne
Colonel Chiswell Dabney Langhorne (November 4, 1843 – February 14, 1919) was an United States railroad industrialist. He was the father of Nancy Witcher Langhorne and the maternal grandfather of both Joyce Grenfell and Michael Langhorne Astor.[1] Langhorne was born in Lynchburg, Virginia at Point of Honor. He was the eldest son of John Scarsbrook Langhorne (who inherited Langhorne Mills in Ly
  • 685
  • 14 Nov 2022
Topic Review
Chlorella vulgaris Biomass
Chlorella vulgaris biomass means the biomass made of Chlorella vulgaris, which is a kind of microalgae. Under appropriate conditions, microalgae convert solar energy into chemical energy stored as starch or lipids, which are precursors for bioethanol and biodiesel production. Given the higher photosynthetic efficiency, higher biomass production per unit area and faster growth rate compared to energy crops, microalgae are good alternative as feedstock for biofuel production. An additional advantage of microalgae is the lack of competition for nutrients with food crops. Furthermore, biomass production can be located on marginal lands. The negative environmental impact associated with the cultivation of microalgae for energy purposes is described as potentially negligible.
  • 1.2K
  • 10 Sep 2021
Topic Review
Chloride-Induced Corrosion of Carbon Steel in Cracked Concrete
Corrosion is an electrochemical reaction consisting of anodic and cathodic half-cell reactions. Micro-cell corrosion refers to the situation where active dissolution and the corresponding cathodic half-cell reaction occur in adjacent parts of the same metal. For a steel reinforcing bar in concrete, the surface of the corroding steel can act as a mixed electrode containing both anode and cathode regions connected by the bar itself. Macro-cell corrosion can also form on a single bar exposed to different environments within the concrete or where part of the bar extends outside the concrete. In both cases, the concrete pore solution functions as an electrolyte.
  • 551
  • 16 Jun 2022
Topic Review
Chlorinated Aliphatic Hydrocarbons
Chlorinated aliphatic hydrocarbons (CAHs) are ubiquitous contaminants whose presence in groundwater has persisted for many decades, mainly due to the physical-chemical characteristics of these compounds. In particular, CAHs belong to Dense Non-Aqueous Phase Liquids (DNAPLs), for which contamination scenarios differ significantly from Light NAPLs scenarios, where the separate phase floats at the top of the water table due to its lower density than water.
  • 1.9K
  • 28 Sep 2021
Topic Review
Chlorination of Harvested Rainwater
 In many rural areas, primary water sources such as surface water and groundwater are at risk of contamination with rapid agricultural and industrial growth and climate change-related issues. Rainwater harvesting is an ancient practice for rural communities, and the momentum around its use is continually growing in recent years. Among the disinfection methods, chlorination is the most common method in large-scale water treatment schemes. It is also one of the most cost-effective water disinfection processes. It is further suggested that free chlorine could be extensively efficacious against most waterborne pathogens and cause destruction of the cell DNA of these microorganisms, except for Cryptosporidium parvum oocysts and Mycobacteria species. Consequently, this method could reduce waterborne diseases in many countries. In addition, chlorine tablets and liquid pool chlorine are reasonably accessible and safe for transportation to the end-users for residential purposes.
  • 526
  • 14 Aug 2023
Topic Review
Chlorophyll and TiO2
Chlorophyll sensitization can improve the performance of semiconductors like TiO2 in photocatalytic reactions and light-harvesting technologies, such as solar cells. Faced with the search for renewable energy sources and sustainable technologies, the application of this natural pigment has been gaining prominence.
  • 183
  • 11 Dec 2023
Biography
Christopher Chenery
Christopher Tompkins Chenery (September 19, 1886 – January 3, 1973) was an American engineer, businessman, and the owner/breeder of record for Thoroughbred horse racing's U.S. Triple Crown champion Secretariat. Chenery, the son of Ida and James Chenery, was born in Richmond and raised in Ashland, Virginia.[1] He had three brothers, William Ludlow Chenery, who became editor of Collier's Wee
  • 663
  • 29 Dec 2022
Topic Review
Chromogenic Technologies for Energy Saving
Chromogenic materials and devices include a wide range of technologies that are capable of changing their spectral properties according to specific external stimuli. Several studies have shown that chromogenics can be conveniently used in building façades in order to reduce energy consumption, with other significant effects. First of all, chromogenics influence the annual energy balance of a building, achieving significant reductions in consumption for HVAC and artificial lighting. In addition, these technologies potentially improve the indoor level of visual comfort, reducing the risks of glare and excessive lighting. 
  • 1.9K
  • 19 Dec 2020
Topic Review
Chrysler Minivan (AS)
The second-generation Chrysler minivans are a series of minivans that were manufactured and marketed by Chrysler Corporation in North America and Europe from 1991 to 1995. Officially designated the AS platform by Chrysler, the second-generation minivans were again sold in passenger and cargo configurations by the Chrysler, Plymouth, and Dodge divisions. Launched in late 1990 for the 1991 model year, the second-generation minivans were an extensive revision of the first-generation chassis and body. The model range became the first minivans offered with driver-side airbags (1991) and with optional integrated child safety seats (1992). While adding all-wheel drive as an option for the first time, the AS platform would also mark the last offering of a manual transmission. As with its predecessor, Chrysler assembled second-generation minivans at Windsor Assembly in Windsor, Ontario, Canada, with additional production at Saint Louis (North) Assembly in Fenton, Missouri from 1990 to 1994. In 1992, to supplement exports from the United States, the Chrysler Voyager began production in Graz, Austria (in the Eurostar joint venture factory between Chrysler and Steyr-Daimler-Puch). For the 1996 model year, the AS-generation minivans were replaced by the NS platform, marking the first complete redesign of the Chrysler minivans since their introduction.
  • 686
  • 28 Nov 2022
Topic Review
Chrysler Pacifica (CS)
The Chrysler Pacifica is a mid-size crossover produced by Chrysler from 2003 to 2007, for the model years 2004 to 2008. The Pacifica was the first jointly engineered product of the 1998 DaimlerChrysler "merger of equals." Chrysler developed the vehicle in 30 months at a cost below $1 billion. The CUV was inspired by the 1999 Chrysler Pacifica and 2000 Chrysler Citadel concept cars. The production model was first introduced at the 2002 New York International Auto Show. Chrysler marketed the Pacifica as a "sports-tourer," building the vehicle at the Windsor Assembly Plant, alongside the long-wheelbase minivans from January 2003 through November 2007. The "Pacifica" name was briefly used as a trim package on the Dodge Daytona for 1987–1988 after the Chrysler Laser was discontinued. In January 2016, the Pacifica name was revived for a 2017 model year minivan, which debuted at the North American International Auto Show as a replacement for the Chrysler Town & Country.
  • 571
  • 08 Oct 2022
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