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Siam Chemicals
The Siam Chemicals Public Company (SCC) blends and trades chemicals, fertilisers and lubricants and manufactures basic chemicals for downstream industries such as sulfuric acid, hydrochloric acid Hydrochloric acid, also known as muriatic acid, is an aqueous solution of hydrogen chloride. It is a colorless solution with a distinctive pungent smell. It is classified as a strong acid Acid strength is the tendency of an acid, symbol ..., various bases and salts. History The company was founded as ''The Siam Chemicals Company Limited'' in 1959 by Dr. Charng Ratanarat and a group of scientists, engineers and businessmen. Dr. Charng Ratanarat had studied in Germany and had the vision to make Thailand independent from importing bulk chemicals, commodities and supplies. He wanted to become the first producer of chemicals for the downstream industry in Thailand such as sulphuric acid and fertilizer, agricultural fertilizers. He set-up the company to support Thailand's indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bangkok
Bangkok, officially known in Thai as Krung Thep Maha Nakhon and colloquially as Krung Thep, is the capital and most populous city of Thailand. The city occupies in the Chao Phraya River delta in central Thailand and has an estimated population of 10.539 million as of 2020, 15.3 percent of the country's population. Over 14 million people (22.2 percent) lived within the surrounding Bangkok Metropolitan Region at the 2010 census, making Bangkok an extreme primate city, dwarfing Thailand's other urban centres in both size and importance to the national economy. Bangkok traces its roots to a small trading post during the Ayutthaya Kingdom in the 15th century, which eventually grew and became the site of two capital cities, Thonburi in 1768 and Rattanakosin in 1782. Bangkok was at the heart of the modernization of Siam, later renamed Thailand, during the late-19th century, as the country faced pressures from the West. The city was at the centre of Thailand's political struggl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fourier Transform Infrared Spectroscopy
Fourier-transform infrared spectroscopy (FTIR) is a technique used to obtain an infrared spectrum of absorption or emission of a solid, liquid, or gas. An FTIR spectrometer simultaneously collects high-resolution spectral data over a wide spectral range. This confers a significant advantage over a dispersive spectrometer, which measures intensity over a narrow range of wavelengths at a time. The term ''Fourier-transform infrared spectroscopy'' originates from the fact that a Fourier transform (a mathematical process) is required to convert the raw data into the actual spectrum. Conceptual introduction The goal of absorption spectroscopy techniques (FTIR, ultraviolet-visible ("UV-vis") spectroscopy, etc.) is to measure how much light a sample absorbs at each wavelength. The most straightforward way to do this, the "dispersive spectroscopy" technique, is to shine a monochromatic light beam at a sample, measure how much of the light is absorbed, and repeat for each different ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nakhon Srithammarat
Nakhon Si Thammarat Municipality ( th, เทศบาลนครนครศรีธรรมราช, ; from Pali ''Nagara Sri Dhammaraja'') is a municipality (''thesaban nakhon'') in Southern Thailand, capital of Nakhon Si Thammarat province and Mueang Nakhon Si Thammarat district. It is about south of Bangkok, on the east coast of the Malay Peninsula. The city was the administrative center of southern Thailand during most of its history. Originally a coastal city, silting moved the coastline away from the city. The city has a much larger north to south extension than west to east, which dates back to its original location on a flood-save dune. The modern city centre on the train station is north of Old Town. As of 2019, the city had a population of 102,152. Toponymy Thai honorific ''Sri'' or ''Si'' is from Sanskrit Sri; , from Dharma; , from Raja. ''Dhammaraja'' means "righteous ruler", an important Theravada concept. History Nakhon Si Thammarat is one of the oldes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1,1,1,2-Tetrafluoroethane
1,1,1,2-Tetrafluoroethane (also known as norflurane (INN), R-134a, Freon 134a, Forane 134a, Genetron 134a, Green Gas, Florasol 134a, Suva 134a, or HFC-134a) is a hydrofluorocarbon (HFC) and haloalkane refrigerant with thermodynamic properties similar to R-12 (dichlorodifluoromethane) but with insignificant ozone depletion potential and a lower 100-year global warming potential (1,430, compared to R-12's GWP of 10,900). It has the formula CFCHF and a boiling point of −26.3 °C (−15.34 °F) at atmospheric pressure. R-134a cylinders are colored light blue. A phaseout and transition to HFO-1234yf and other refrigerants, with GWPs similar to CO2, began in 2012 within the automotive market. Uses 1,1,1,2-Tetrafluoroethane is a non-flammable gas used primarily as a "high-temperature" refrigerant for domestic refrigeration and automobile air conditioners. These devices began using 1,1,1,2-tetrafluoroethane in the early 1990s as a replacement for the more envir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrogen
Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N2, a colorless and odorless diatomic gas. N2 forms about 78% of Earth's atmosphere, making it the most abundant uncombined element. Nitrogen occurs in all organisms, primarily in amino acids (and thus proteins), in the nucleic acids ( DNA and RNA) and in the energy transfer molecule adenosine triphosphate. The human body contains about 3% nitrogen by mass, the fourth most abundant element in the body after oxygen, carbon, and hydrogen. The nitrogen cycle describes the movement of the element from the air, into the biosphere and organic compounds, then back into the atmosphere. Many industrially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argon
Argon is a chemical element with the symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas. Argon is the third-most abundant gas in Earth's atmosphere, at 0.934% (9340 ppmv). It is more than twice as abundant as water vapor (which averages about 4000 ppmv, but varies greatly), 23 times as abundant as carbon dioxide (400 ppmv), and more than 500 times as abundant as neon (18 ppmv). Argon is the most abundant noble gas in Earth's crust, comprising 0.00015% of the crust. Nearly all of the argon in Earth's atmosphere is radiogenic argon-40, derived from the decay of potassium-40 in Earth's crust. In the universe, argon-36 is by far the most common argon isotope, as it is the most easily produced by stellar nucleosynthesis in supernovas. The name "argon" is derived from the Greek word , neuter singular form of meaning 'lazy' or 'inactive', as a reference to the fact that the element undergoes almost no chemical reactions. The comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxygen
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Oxygen is Earth's most abundant element, and after hydrogen and helium, it is the third-most abundant element in the universe. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula . Diatomic oxygen gas currently constitutes 20.95% of the Earth's atmosphere, though this has changed considerably over long periods of time. Oxygen makes up almost half of the Earth's crust in the form of oxides.Atkins, P.; Jones, L.; Laverman, L. (2016).''Chemical Principles'', 7th edition. Freeman. Many major classes of organic molecules in living organisms contain oxygen atoms, such as proteins, nucleic acids, carbohydrates, and fats ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Songkhla
Songkhla ( th, สงขลา, ), also known as Singgora or Singora ( Pattani Malay: ซิงกอรอ), is a city ('' thesaban nakhon'') in Songkhla Province of southern Thailand, near the border with Malaysia. Songkhla lies south of Bangkok and as of 2020 had a population of 61,758. Despite being smaller than the neighboring city Hat Yai, Songkhla is the capital of Songkhla Province as well as the Mueang Songkhla District (Songkhla town district). Together with Hat Yai, Songkhla is part of the Greater Hat Yai-Songkhla Metropolitan Area (a conurbation with a population of around 800,000), the third largest metropolitan area in Thailand. At the opening of Songkhla Lake to the Gulf of Thailand, Songkhla is a fishing town and also an important harbour. It is the major seaport on the east side of the Isthmus of Kra. History The name ''Songkhla'' is the Thai variant of "Singgora" ( Jawi: سيڠڬورا); its original name means 'the city of lions' in Malay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don Mueang International Airport
Don Mueang International Airport ( th, ท่าอากาศยานดอนเมือง, , , or colloquially as , ) is one of two international airports serving the Bangkok Metropolitan Region, the other one being Suvarnabhumi Airport (BKK). Before Suvarnabhumi opened in 2006, Don Mueang was previously known as Bangkok International Airport ( th, ท่าอากาศยานกรุงเทพ, ). The airport is considered to be one of the world's oldest international airports and Asia's oldest operating airport. It was officially opened as a Royal Thai Air Force base on 27 March 1914, although it had been in use earlier. Commercial flights began in 1924, making it one of the world's oldest commercial airports. The airport consists of Terminal 1 for international flights and Terminal 2 for domestic flights which are connected by a unique glass exterior elevated walkway. The airport also featured an exterior walkway connected to the Amari hotel. The first com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AgustaWestland AW139
The AgustaWestland AW139 is a medium-lift twin-engined helicopter developed and produced by the Anglo-Italian helicopter manufacturer AgustaWestland, later wholly owned by Leonardo S.p.A. It is marketed at several different roles, including VIP/corporate transport, offshore transport, fire fighting, law enforcement, search and rescue, emergency medical service, disaster relief, and maritime patrol."US Corporate Operator Signs Contract For Two AW139 Helicopters." ''AgustaWestland'', 18 June 2014. The AW139 was originally designed jointly by the Italian helicopter manufacturer Agusta and the American company Bell Heli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sikorsky S-76
The Sikorsky S-76 is a medium-size commercial utility helicopter designed and produced by the American helicopter manufacturer Sikorsky Aircraft. It is the company's first helicopter specifically developed for the civilian market. The S-76 was developed during the mid-1970s, originally begin designated ''S-74'' but renamed in honor of the U.S. Bicentennial. Drawing upon its recently-developed S-70 helicopter, it features twin turboshaft engines, four-bladed main and tail rotors, and retractable landing gear. On , the prototype performed its maiden flight. The initial production variant was the S-76A, the first deliveries of which took place on . Several improved models were produced over time, including the S-76 Mk II launched in 1982, and the S-76B in 1987. Development of the S-76D was particularly troubled, being delayed by four years of delays due to flight envelope issues; it was finally certified for operation on . The S-76 initially encountered strong demand from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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