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Oil-gas
Naphtha (, recorded as less common or nonstandard in all dictionaries: ) is a flammable liquid hydrocarbon mixture. Generally, it is a fraction of crude oil, but it can also be produced from natural-gas condensates, petroleum distillates, and the fractional distillation of coal tar and peat. In some industries and regions, the name ''naphtha'' refers to crude oil or refined petroleum products such as kerosene or diesel fuel. Naphtha is also known as Shellite in Australia. Etymology The word ''naphtha'' comes from Latin through Ancient Greek (), derived from Middle Persian ''naft'' ("wet", "naphtha"), the latter meaning of which was an assimilation from the Akkadian 𒉌𒆳𒊏 (see Semitic relatives such as Arabic petroleum" Syriac ''naftā'', and Hebrew , meaning petroleum). Antiquity The book of II Maccabees (2nd cent. BC) tells how a "thick water" was put on a sacrifice at the time of Nehemiah and when the sun shone it caught fire. It adds that "those arou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural-gas Condensate
Natural-gas condensate, also called natural gas liquids, is a low-density mixture of hydrocarbon liquids that are present as gaseous components in the raw natural gas produced from many natural natural gas field, gas fields. Some gas species within the raw natural gas will condense to a liquid state if the temperature is reduced to below the hydrocarbon dew point temperature at a set pressure. The natural gas condensate is also called condensate, or gas condensate, or sometimes natural gasoline because it contains hydrocarbons within the gasoline boiling range, and is also referred to by the shortened name condy by many workers on gas installations. Raw natural gas used to create condensate may come from any type of gas well such as: * Crude Oil well, oil wells: Natural gas that comes from crude oil wells is typically called ''associated gas''. This gas could exist as a separate gas cap above the crude oil in the underground reservoir or could be dissolved in the crude oil, ulti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syriac Language
The Syriac language ( ; ), also known natively in its spoken form in early Syriac literature as Edessan (), the Mesopotamian language () and Aramaic (), is an Aramaic#Eastern Middle Aramaic, Eastern Middle Aramaic dialect. Classical Syriac is the academic term used to refer to the dialect's literary usage and standardization, distinguishing it from other Aramaic dialects also known as 'Syriac' or 'Syrian'. In its West-Syriac Rite, West-Syriac tradition, Classical Syriac is often known as () or simply , or , while in its East-Syriac Rite, East-Syriac tradition, it is known as () or (). It emerged during the first century AD from a local Eastern Aramaic languages, Eastern Aramaic dialect that was spoken in the ancient region of Osroene, centered in the city of Edessa. During the Early Christian period, it became the main literary language of various Aramaic-speaking Christian communities in the historical region of Syria (region), Ancient Syria and throughout the Near East. As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fractionation
Fractionation is a separation process in which a certain quantity of a mixture (of gasses, solids, liquids, enzymes, or isotopes, or a suspension) is divided during a phase transition, into a number of smaller quantities (fractions) in which the composition varies according to a gradient. Fractions are collected based on differences in a specific property of the individual components. A common trait in fractionations is the need to find an optimum between the amount of fractions collected and the desired purity in each fraction. Fractionation makes it possible to isolate more than two components in a mixture in a single run. This property sets it apart from other separation techniques. Fractionation is widely employed in many branches of science and technology. Mixtures of liquids and gasses are separated by fractional distillation by difference in boiling point. Fractionation of components also takes place in column chromatography by a difference in affinity between statio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosin
Rosin (), also known as colophony or Greek pitch (), is a resinous material obtained from pine trees and other plants, mostly conifers. The primary components of rosin are diterpenoids, i.e., C20 carboxylic acids. Rosin consists mainly of resin acids, especially abietic acid. Rosin often appears as a semi-transparent, brittle substance that ranges in color from yellow to black and melts at stove-top temperatures. In addition to industrial applications such as in varnishes, adhesives, and sealing wax, rosin is used with string instruments on the bow hair to enhance its ability to grip and sound the strings, and it provides grip in various sports and activities. Rosin also serves as an ingredient in medicinal and pharmaceutical formulations and can cause contact dermatitis or occupational asthma in sensitive individuals. It is an FDA approved food additive. The name "colophony" originates from , Latin for "resin from Colophon" (), an ancient Ionic city. Properties R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Song Of The Three Children
A song is a musical composition performed by the human voice. The voice often carries the melody (a series of distinct and fixed pitches) using patterns of sound and silence. Songs have a structure, such as the common ABA form, and are usually made of sections that are repeated or performed with variation later. A song without instruments is said to be a cappella. Written words created specifically for music, or for which music is specifically created, are called lyrics. If a pre-existing poem is set to composed music in the classical tradition, it is called an art song. Songs that are sung on repeated pitches without distinct contours and patterns that rise and fall are called chants. Songs composed in a simple style that are learned informally by ear are often referred to as folk songs. Songs composed for the mass market, designed to be sung by professional singers who sell their recordings or live shows, are called popular songs. These songs, which have broad appeal, are o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pitch (resin)
Pitch is a viscoelastic polymer which can be natural or manufactured, derived from petroleum, coal tar, or plants. Pitch produced from petroleum may be called bitumen or asphalt, while plant-derived pitch, a resin, is known as rosin in its solid form. Tar is sometimes used interchangeably with pitch, but generally refers to a more liquid substance derived from coal production, including coal tar, or from plants, as in pine tar. Uses Pitch, a traditional naval store, was traditionally used to help caulk the seams of wooden sailing vessels (see shipbuilding). Other important historic uses included coating earthenware vessels for the preservation of wine, waterproofing wooden containers, and making torches. It was also used to make patent fuel from coal slack around the turn of the 19th century. Petroleum-derived pitch is black in colour, hence the adjectival phrase "pitch-black". The viscoelastic properties of pitch make it well suited for the polishing of high-quali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum
Petroleum, also known as crude oil or simply oil, is a naturally occurring, yellowish-black liquid chemical mixture found in geological formations, consisting mainly of hydrocarbons. The term ''petroleum'' refers both to naturally occurring unprocessed crude oil, as well as to petroleum products that consist of refining, refined crude oil. Petroleum is a fossil fuel formed over millions of years from anaerobic decay of organic materials from buried prehistoric life, prehistoric organisms, particularly planktons and algae, and 70% of the world's oil deposits were formed during the Mesozoic. Conventional reserves of petroleum are primarily recovered by oil drilling, drilling, which is done after a study of the relevant structural geology, sedimentary basin analysis, analysis of the sedimentary basin, and reservoir characterization, characterization of the petroleum reservoir. There are also unconventional (oil & gas) reservoir, unconventional reserves such as oil sands and oil sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olive Oil
Olive oil is a vegetable oil obtained by pressing whole olives (the fruit of ''Olea europaea'', a traditional Tree fruit, tree crop of the Mediterranean Basin) and extracting the oil. It is commonly used in cooking for frying foods, as a condiment, or as a salad dressing. It can also be found in some cosmetics, pharmaceuticals, soaps, and fuels for traditional oil lamps. It also has additional uses in some religions. The olive is one of three core food plants in Mediterranean cuisine, with wheat and grapes. Olive trees have been cultivated around the Mediterranean since the 8th millennium BC. In 2022, Spain was the world's largest producer, manufacturing 24% of the world's total. Other large producers were Italy, Greece, and Turkey, collectively accounting for 59% of the global market. The composition of olive oil varies with the cultivar, altitude, time of harvest, and extraction process. It consists mainly of oleic acid (up to 83%), with smaller amounts of other fatty acids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rabbi Tarfon
Rabbi Tarfon or Tarphon (, from the Greek Τρύφων ''Tryphon'' literally "one who lives in luxury" Trifon), a Kohen, was a member of the third generation of the Mishnah sages, who lived in the period between the destruction of the Second Temple (70 CE) and the fall of Betar (135 CE). Biography Rabbi Tarfon was a resident of Yavneh, but Jewish sources show that he also lived and taught in Lod. He was of priestly lineage, and he once went with his uncle on his mother's side to participate in the priestly prayer in the Temple in Jerusalem. As a priest, he would demand the terumah even after the Temple had fallen, but his generosity made him return the money given to him as a priest in the pidyon haben ceremony. Once, in a time of famine, he took 300 wives so that they might, as wives of a priest, exercise the right of sharing in the tithes. Once, when from his window he saw a bridal procession evidently of the poorer classes, he requested his mother and sister to anoint the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shabbat
Shabbat (, , or ; , , ) or the Sabbath (), also called Shabbos (, ) by Ashkenazi Hebrew, Ashkenazim, is Judaism's day of rest on the seventh day of the seven-day week, week—i.e., Friday prayer, Friday–Saturday. On this day, religious Jews remember the biblical stories describing the Genesis creation narrative, creation of the heaven and earth in six days and the redemption from slavery and the Exodus from Egypt. Since the Hebrew calendar, Jewish religious calendar counts days from sunset to sunset, Shabbat begins in the evening of what on the civil calendar is Friday. Shabbat observance entails refraining from 39 Melachot, work activities, often with shomer Shabbat, great rigor, and engaging in restful activities to honor the day. Judaism's traditional position is that the unbroken seventh-day Shabbat originated among the Jewish people, as their first and most sacred institution. Variations upon Shabbat are widespread in Judaism and, with adaptations, throughout the Abraham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mishnah
The Mishnah or the Mishna (; , from the verb ''šānā'', "to study and review", also "secondary") is the first written collection of the Jewish oral traditions that are known as the Oral Torah. Having been collected in the 3rd century CE, it is the first work of rabbinic literature, written primarily in Mishnaic Hebrew but also partly in Jewish Palestinian Aramaic. The oldest surviving physical fragments of it are from the 6th to 7th centuries. The Mishnah was literary redaction, redacted by Judah ha-Nasi probably in Beit She'arim (Roman-era Jewish village), Beit Shearim or Sepphoris between the ending of the second century CE and the beginning of the third century. Heinrich Graetz, dissenting, places the Mishnah's compilation in 189 CE (see: H. Graetz, ''History of the Jews'', vol. 6, Philadelphia 1898, p105), and which date follows that penned by Rabbi Abraham ben David in his "Sefer HaKabbalah le-Ravad", or what was then ''anno'' 500 of the Seleucid era. in a time when the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nehemiah
Nehemiah (; ''Nəḥemyā'', "Yahweh, Yah comforts") is the central figure of the Book of Nehemiah, which describes his work in rebuilding Jerusalem during the Second Temple period as the governor of Yehud Medinata, Persian Judea under Artaxerxes I of Persia (465–424 BC). The historicity of Nehemiah, his mission, and the Nehemiah Memoir have recently become very controversial in academic scholarship, with maximalists viewing it as a historical account and minimalists doubting whether Nehemiah existed. He is considered a saint in the Eastern Orthodox Church, where he is commemorated on the Sunday of the Holy Forefathers. Book of Nehemiah narrative In the 20th year of Artaxerxes I of Persia, Artaxerxes I (445 or 444 BC), Nehemiah was Cup-bearer, cup-bearer to the king. Learning that the remnant of Jews in Judah were in distress and that the walls of Jerusalem were broken down, he asked the king for permission to return and rebuild the city, around 13 years after Ezra's arriv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
