Results 141 to 150 of about 156,029 (275)
Archaeometry, EarlyView.Abstract Kohl was ubiquitous in ancient Egypt and the Middle East, and routinely included among the toiletries deposited in burials. For Egypt, kohl recipes are increasingly well‐studied and known to use a range of inorganic and organic ingredients. Although these are often lead‐based, manganese‐ and silicon‐rich compounds are also attested.
Silvia Amicone +7 more
wiley +1 more source
Separation and Analysis of Oxygen-Containing Compounds in a Shaanxi Middle/Low-Temperature Coal Tar. [PDF]
ACS Omega, 2023 Guo XH +8 more
europepmc +1 more source
Modeling Pyrolysis of Large Coal Particles with Many Species [PDF]
, 2016 Coal currently supplies 40% of the world’s electricity needs, and is one of the most important energy sources. As the initial stage of coal combustion, pyrolysis is a thermal decomposition process which converts coal into light gases and tars, which are ...
Li, Jianqing
core +1 more source
Studies on Coal-Tar Colors. XXII. 4,5-Dibromofluorescein and Related Bromofluoresceins [PDF]
, 1959 Charles Graichen, John C Molitor
openalex +1 more source
Philosophical Perspectives, EarlyView.ABSTRACT In a pure event semantics for natural language, the domain of quantification and predication is limited to events and states. I offer pure event semantic analyses of several phenomena, some of which have not been treated before in formal semantics. In the pure event semantics sketched in the second section, nouns are state predicates, and this
Roger Schwarzschild
wiley +1 more source
In Situ Catalytic Pyrolysis of Low-Rank Coal for the Conversion of Heavy Oils into Light Oils
Advances in Materials Science and Engineering, 2017 Lighter tars are largely useful in chemical industries but their quantity is quite little. Catalytic cracking is applied to improve the yield of light tars during pyrolysis.
Muhammad Nadeem Amin, Yi Li, Xingmei Lu
doaj +1 more source
Molecular Characteristics of Catalytic Nitrogen Removal from Coal Tar Pitch over γ-Alumina-Supported NiMo and CoMo Catalysts. [PDF]
Int J Mol Sci, 2023 Choi KH +9 more
europepmc +1 more source
Hot-Mix Coal-Tar Concrete Pavement [PDF]
, 1971 The principle objectives of this research were: To compare the economics and performance of coal tar to asphalt cement; To develop reliable coal-tar construction specifications; To familiarize personnel with coal-tar construction; and To implement ...
Newberry, Donald C., Jr., Rose, Jerry G.
core +1 more source
Rethinking Chlorine: Essential Chemical or Replaceable Risk?
ChemSusChem, Volume 18, Issue 13, July 1, 2025.Chlorine is essential for the production of plastics and pharmaceuticals but poses significant safety and environmental risks. Herein, processes are presented that substitute chlorine or reduce its demand. Where indispensable, trichloride‐ and bichloride‐based ionic liquids could enhance safety and streamline the integration of renewable energy ...
Johannes Schwan +6 more
wiley +1 more source