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Aug 20, 2020
08/20
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Center for Accessible Technology in Sign
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Topic: hydrocarbon
The OCR that Google Patents originates has been edited to make this patent full-text-searchable and easy to read. There are 3 formats available: .pdf (original), .txt (clean text), and .brf (braille file). .brf is a file format used by the blind. See the "all files HTTP" link to access all three. During the editing process, a diligent attempt has been made to correctly discern every reference character set forth in the patent, and the majority by far are correct. However, because the...
Topics: hydrocarbon motor, patent
Journal of Research of the National Institute of Standards and Technology
Topics: radical, acetylene, hydrocarbon
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radioshack msds msd64 4327
Topics: hydrocarbon, ventilated, solvent, hazardous, radioshack, ppm, symbol, reactivity, protection,...
In the present study, in order to rehabilitate areas multi-contaminated by oil and metals, bioremediation, coupled with bioreactor technologies, was applied. Firstly, a microcosm trial was performed using two synthetic surfactants, TRITON X-100 and TWEEN 80, and a biological one, JBR210, at two different concentrations (0.1 and 1.0 mg. g-1 soil) for 42 days to select the two best surfactants of different natures in order to scale up a solid-phase bench bioreactor under controlled operating...
Topics: Bioremediation, hydrocarbon, surfactant, biosurfactant, bioreactor.
Gelled Hydrocarbon Fuels US Patent 4166723
Topics: gelled, burning, acetic, anhydride, fuels, liquid, fuel, hydrocarbon, gelling, napalm, burning...
The pollution originated from the petrochemical industry is currently one of the main environmental concerns. Most of this is due to the high volume of toxic hydrocarbons that are produced and transported around the globe. However, this industry is also associated with toxic metals that are minor components of petroleum and used during refining processes. Here we have evaluated the impact of nickel in the biodegradation of crude oil in natural soils. We have assessed bacterial community...
Topics: Metagenome, metal contamination, hydrocarbon remediation, Actinobacteria.
Researchers all around the world are working towards possible solutions to the problems of accelerating depletion of fossil fuels, and the perennial problem of pollution associated with the combustion of such fuels. Towards the end of twentieth century, the effect of strong magnetic fields on molecular structure and its potential to alter the properties at the molecular level were discovered. A number of researchers have focused their attention on this topic, and have come out with appreciable...
Topics: Fossil Fuels, Hydrocarbon Fuels, Combustion & Emission
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Mar 17, 2021
03/21
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IRJASH Journal
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The major reason for the depletion of the ozone layer is refrigerants from to refrigeration system, instead of that to hydrocarbons(HC) like liquefied petroleum gas(LPG) is proposed as working fluid in refrigeration system .The hydrocarbons while used as a refrigerant posses many good characteristics such as:-very low cost, nontoxic, zero ozone layer depletion potential, strong compact ability. To safeguard the depleting ozone layer LPG is the perfect option. This system works by the expansion...
Topics: Hydrocarbon, Refrigeration system, cooling cycle, ozone layer
Folkscanomy: General Academic Papers
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Jan 12, 2021
01/21
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Farmanov Behzod Ilkhomovich | Ismailov Feruz Sabirovich | Tavashov Shahzod Khujakhmatovich
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The activity of the prepared catalyst samples was determined according to TU 113-03-352-87 according to the method TU 113-03-313-85 "Nickel GIAP-3-6N catalyst for the conversion of gaseous hydrocarbons". The organization of production is planned at OJSS "Maksam-Chirchik" and is included in the list of innovative works of SJSC "Uzkimyosanoat". Farmanov Behzod Ilkhomovich, Tavashov Shahzod Khujakhmatovich and Ismailov Feruz Sabirovich 2020. Development of production...
Topics: hydrocarbon gas, chemical composition, nickel, mixed catalysts
eCHEM 1A: Online General Chemistry College of Chemistry, University of California, Berkeley http://chemistry.berkeley.edu/echem1a Curriculum and ChemQuizzes developed by Dr. Mark Kubinec and Professor Alexander Pines Chemical Demonstrations by Lonnie Martin Video Production by Jon Schainker and Scott Vento Developed with the support of The Camille & Henry Dreyfus Foundation
Topics: SEG08, 02, hydrocarbon, QUIZ, ECHEM, LESSON, Education
Evaporation is an important component in oil spill models. Various approaches for oil evaporation prediction are summarized. Models can be divided into those models that use the basis of air‐boundary‐regulation or those that use liquid diffusion‐regulated evaporation physics. Studies show that oil is not air boundary‐layer regulated such as it is for water evaporation, which implies that a simplistic evaporation equation suffices to accurately describe the process. The following...
Topics: Oil Spill Evaporation, Hydrocarbon Evaporation, Evaporation Modeling
The synthesis and characterization of three new metal chalcogenide aerogels, Chalcogels, AFe3Zn3S17 (A= Na, K, or Rb) is described. Alkali metal polychalcogenides (Na2S5, K2S5, or Rb2S5) reactwith metal acetate like Fe(OAc)2 and Zn(OAc)2in formamide solutionforming extended polymeric frameworks by gelation. Chalcogels obtained aftersupercritical drying have BET surface areas of 430, 444, and 435 m 2 /g for NaFe3Zn3S17, KFe3Zn3S17, and RbFe3Zn3S17, respectively. The effect of the counter ions...
Topics: Adsorption, Chalcogel, Gas and hydrocarbon selectivity, Mesoporous, Separation
Journal of Research of the National Bureau of Standards
Topics: Flame speed, combustion, inhibitor, halogenated hydrocarbon, bromide, chloride
Incendiary Device US Patent 2791178
Topics: mixture, hydrocarbon, heater, primer, combustible, device, incendiary, fuze, bomb, aluminum, heater...
[11], 137 leaves ; 28 cm
Topics: Differential equations, Parabolic -- Numerical solutions, Hydrocarbon reservoirs -- Mathematical...
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Aug 19, 2017
08/17
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© Impact Journals
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ABSTRACT Maintenance and Retrofitting always busy to be the subject of discussion because the topic is related to the replacement of refrigrant materials, Although it will not replace materials and tools but in terms of his refrigeration science many interesting things. In terms of basic sciences the working principle of the system is still fixed, only the refrigerant is changed. In fact, there can be no changes in components and equipment. The existence of compressors, condensers, evaporators,...
Topics: KEYWORDS: Maintenance, Retrofitting, Refrigerant R12, Refrigerant, Hydrocarbon, Compressor,...
Folkscanomy: General Academic Papers
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Oct 21, 2019
10/19
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Augustine I. Airaodion, Uloaku Ogbuagu, John A. Ekenjoku, Emmanuel O. Ogbuagu, Edith O. Airaodion and Victor N. Okoroukwu
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Hydrocarbon exposure has been reported to have deleterious effect on human health including damaging the organs. This study sought to investigate the hepatoprotective efficiency of ethanol leaf extract of Moringa oleifera against hydrocarbon exposure. Twenty adult Wistar rats were used for this study. They were divided into four groups and treated accordingly : animals in g ro u p A were fed with 100 g of standard feed only (C o n t ro l group) , G ro u p B with 100 g o f standard f ee d + 4 m...
Topics: Moringa oleifera Lam., hydrocarbon exposure, Liver Damage, Hepatoprotective Agent.
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Persistent organic pollutants (POPs) and other persistent hazardous compounds such as hexachlorocyclohexane (HCH), polyaromatic hydrocarbons (PAHs) and polybrominated diphenylether (PBDEs) have serious health effects due to their toxicity and high tendency to get accumulated in the environment. This paper reviews the prominent sources and distribution of persistent organic pollutants including both natural and anthropogenic sources, responsible for their tenacity in the environment. Their...
Topics: Accumulation, Contaminant, Persistent Organic Pollutant, Poly Aromatic Hydrocarbon, Source
Plastics are a part of our daily lives."Plastic are high molecular weight organic polymers which can be moulded into desired shapes by the application of heat and pressure". Unfortunately, that doesn't mean they're safe or responsible. Plastic pollution is currently one of the biggest environmental concerns. It may seem like large amounts of plastic waste are inevitable in the world we live in, but you can help with the plastic pollution issue by being aware of its dangers and taking...
Topics: plastic, animals, environment, rivers, landfills, hydrocarbon, pollution, Enviormental Science
Soil contamination is the presence in soil of unwanted impure materials from human activities. Many techniques of remediation of contaminated soils have been developed such as physical, chemical, photo degradation etc. Biological treatments offer the best environmental friendly method for remediating hydrocarbons and other contaminated soils because it utilized the capability of the indigenious micro-organisms in the environment to break down the hydrocarbons and heavy metals into innocuous...
Topics: Bacteria, Total Petroleum Hydrocarbon, degradation, contaminated soil, organic manure
CO2 Emissions from Fuel Combustion Emissions De CO2 Dues a La Combustion D’ Energie_ Energie et formulation _ Production et transports de l'énergie, carburants et lubrifiants, propergols, interaction énergie-matière, énergie électrique Energie libre et technologie. Energie, Electricité et nucleaire. Energy Management for Pollution Control. Hydrocarbons. Manuel d'enseignement d’Energie renouvelable. Prospectives énergétiques à l’horizon. Renewable energy sources. Renewable Energy....
Topics: Renewable Energie, Wind, source, Emission, hydrocarbon, CO2, Elecricité, technologie,...
Concentration of heavy metals; Cd, Cr and Pb along with total petroleum hydrocarbon (TPH) in periwinkles (Tympanotonus fuscatus) from Calabar River in Nigeria was assessed to determine their suitability for human consumption. Water and periwinkle samples were collected from five stations and taken to the laboratory for analysis. Heavy metals were analysed using Graphite Furnace Atomic Absorption Spectrophotometer (GFAAS-AA240FS) after digestion with concentrated Nitric acid while GC–FID...
Topics: Calabar River, Concentration, Heavy metals, Periwinkles, Total petroleum hydrocarbon, Water.
Plastics are a part of our daily lives."Plastic are high molecular weight organic polymers which can be moulded into desired shapes by the application of heat and pressure". Unfortunately, that doesn't mean they're safe or responsible. Plastic pollution is currently one of the biggest environmental concerns. It may seem like large amounts of plastic waste are inevitable in the world we live in, but you can help with the plastic pollution issue by being aware of its dangers and taking...
Topics: plastic, animals, environment, rivers, landfills, hydrocarbon, pollution, eco, Enviormental Science
By applying the Priem-Heidmann Generalized-Length vaporization correlation, the computer model developed by the present study predicts the spatial variation of propellant vaporization rate using the injector cold flow results to define the streamtubes. The calculations show that the overall and local propellant vaporization rate and mixture ratio change drastically as the injection element type or the injector operating condition is changed. These results are compared with the regions of carbon...
Topics: NASA Technical Reports Server (NTRS), FUEL SYSTEMS, HYDROCARBON FUELS, LIQUID OXYGEN, VAPORIZING,...
Plastics are a part of our daily lives.'Plastic are high molecular weight organic polymers which can be moulded into desired shapes by the application of heat and pressure'. Unfortunately, that doesn't mean they're safe or responsible. Plastic pollution is currently one of the biggest environmental concerns. It may seem like large amounts of plastic waste are inevitable in the world we live in, but you can help with the plastic pollution issue by being aware of its dangers and taking steps to...
Topics: plastic, animals, environment, rivers, landfills, hydrocarbon, pollution, eco, Enviormental Science
A process and apparatus is described for producing a hydrogen rich gas by introducing a liquid hydrocarbon fuel in the form of a spray into a partial oxidation region and mixing with a mixture of steam and air that is preheated by indirect heat exchange with the formed hydrogen rich gas, igniting the hydrocarbon fuel spray mixed with the preheated mixture of steam and air within the partial oxidation region to form a hydrogen rich gas.
Topics: NASA Technical Reports Server (NTRS), GAS GENERATORS, HYDROCARBON FUELS, HYDROGEN FUELS, OXIDATION,...
The effects of reducing the primary-zone equivalence ratio on the exhaust emission levels of oxides of nitrogen, carbon monoxide, and unburned hydrocarbons in experimental hydrocarbon-fueled combustor segments at simulated supersonic cruise and idle conditions were investigated. In addition, the effects of the injection of hydrogen fuel (up to 4 percent of the total weight of fuel) on the stability of the hydrocarbon flame and exhaust emissions were studied and compared with results obtained...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION CHAMBERS, EXHAUST GASES, HYDROCARBON FUELS,...
We have developed a model of the migration of hydrocarbon compounds in soils using diffusive formalism. Biodegradation of pollutant by microbial organisms have been considered. We have adopted a configuration of concentration-dependent diffusivity. The nonlinear diffusion equation governing the system was solved numerically using the DOPRI5 fourth-and-fifth-order Runge-Kutta variable step integrator. The highest depth attainable in the ground depends on the type of contaminant considered and on...
Topics: Hydrocarbon contaminated soils, Porous media, Diffusion, Biodegradation, DOPRI5 Runge-Kutta...
A test program employing a gas turbine combustor is outlined; the results of which quantize the effects of changes in ambient temperature and humidity on carbon monoxide emissions at simulated idle operating conditions. A comparison of the experimental results with analytical results generated by a kinetic model of the combustion process, and reflecting changing ambient conditions, is given. It is demonstrated that for a complete range of possible ambient variations, significant changes do...
Topics: NASA Technical Reports Server (NTRS), CARBON MONOXIDE, ENVIRONMENT EFFECTS, EXHAUST GASES, GAS...
The ability of Phaselous vulgaris, Zea mays L., Solanum lycopersium and Sorghum saccharatum to germinate and grow in unpolluted soils, 1% w/w and 2% w/w used engine oil polluted soils were investigated. Twenty (20) seeds of each plant species were sown in the various polluted and unpolluted soils and germination were monitored for 7 days, and subsequent growth for 7 weeks. The numbers of germinated seeds were counted daily from the 2nd to the 7th day, and percentage germination recorded....
Topics: Petroleum hydrocarbon pollution, plants’ growth inhibition, seed germination, Used engine oil...
Physical and chemical properties of host environment to concrete structures have serious impact on the performance and durability of constructed concrete facilities. This paper presents a 7-month study that simulated the influence of soil contamination due to organic abattoir waste and indiscriminate disposal of spent hydrocarbon on strength and durability of embedded concrete. Concrete mix, 1:1.5:3 was designed for all cube and beam specimens with water-cement ratio of 0.5 and the compressive...
Topics: concrete, durability, compressive strength, flexural stiffness, organic waste, Soil pollution,...
Mendeley Climate Change Library
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Jul 5, 2019
07/19
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Daniele Codato; Salvatore Eugenio Pappalardo; Alberto Diantini; Francesco Ferrarese; Federico Gianoli; Massimo De Marchi
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Climate change currently represents the tip of the iceberg of the human footprint on the Biosphere, showing social and environmental impacts both on local and global scales. McGlade and Ekins (2015) argued that to keep the temperature from increasing by 2 °C, more than 80% of coal, 50% of gas and 30% of oil reserves must remain “unburnable” underground. Within such a global scenario, the Amazon Biome presently plays a crucial role both as a carbon sink and as a fossil fuel reserve....
Topics: Amazon, Biodiversity, Climate change, Conservation, GIS, Hydrocarbon projects, Indigenous people,...
Global climate change is rapidly melting the polar ice caps and thus opening the Arctic to human activity. Russia is particularly affected by these changes as the nation with the longest Arctic coastline and a significant portion of its gross domestic product (GDP) generated above the Arctic Circle. This thesis examines how to best classify Russia’s strategy in the pre- and post-2014 periods and concludes the strategy shows a remarkable degree of continuity given the dramatic changes that...
Topics: Russia, Arctic, oil, hydrocarbon, North Pole, Northern Sea Route, bureaucratic politics, siloviki
The effect of combustor operating conditions on the conversion of fuel-bound nitrogen (FBN) to nitrogen oxides NO sub x was analytically determined. The effect of FBN and of operating conditions on carbon monoxide (CO) formation was also studied. For these computations, the combustor was assumed to be a two stage, adiabatic, perfectly-stirred reactor. Propane-air was used as the combustible mixture and fuel-bound nitrogen was simulated by adding nitrogen atoms to the mixture. The oxidation of...
Topics: NASA Technical Reports Server (NTRS), CARBON MONOXIDE, EXHAUST EMISSION, HYDROCARBON COMBUSTION,...
Soot formation within hydrocarbon-fueled flames is an important unresolved problem of combustion science for several reasons: soot emissions are responsible for more deaths than any other combustion-generated pollutant, thermal loads due to continuum radiation from soot limit the durability of combustors, thermal radiation from soot is mainly responsible for the growth and spread of unwanted fires, carbon monoxide emissions associated with soot emissions are responsible for most fire deaths,...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION PRODUCTS, PREMIXED FLAMES, SOOT, COMBUSTION...
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May 23, 2011
05/11
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Ou, Z. Y
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When an N-photon state enters a lossless symmetric beamsplitter from one input port, the photon distribution for the two output ports has the form of Bernouli Binormial, with highest probability at equal partition (N/2 at one outport and N/2 at the other). However, injection of a single photon state at the other input port can dramatically change the photon distribution at the outputs, resulting in zero probability at equal partition. Such a strong deviation from classical particle theory stems...
Topics: HYDROCARBON FUELS, GAS MIXTURES, PREDICTION ANALYSIS TECHNIQUES, FUEL TESTS, HYDROCARBONS,...
A preliminary characterization of Orbital Maneuvering System (OMS) and Reaction Control System (RCS) engine point designs over a range of thrust and chamber pressure for several hydrocarbon fuels is reported. OMS and RCS engine point designs were established in two phases comprising baseline and parametric designs. Interface pressures, performance and operating parameters, combustion chamber cooling and turboprop requirements, component weights and envelopes, and propellant conditioning...
Topics: NASA Technical Reports Server (NTRS), HYDROCARBON FUELS, LIQUID OXYGEN, LIQUID ROCKET PROPELLANTS,...
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Jul 27, 2019
07/19
by
@IASET
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Instabilities in electric power supply create the need for alternative power sources. Generators have become the major alternative for backup power supply. Exhaust emissions (gases and particles) from these generators contain various pollutants which negatively influence the ecosystem. The focus of this work was to evaluate the level of heavy metals and polycyclic aromatic hydrocarbons (PAHs) in soot from the exhaust of standby generators sampled from University of Ghana, Legon campus. Heavy...
Topics: Heavy Metals, Polycyclic Aromatic Hydrocarbon, Soot, Standby Generator, University of Ghana, Legon...
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Topics: scientific, patent, aniline, steam, improved, consists, american, iron, scientific american, tion,...
An experimental program has been planned at the NASA Lewis Research Center to build confidence in the feasibility of liquid oxygen cooling for hydrocarbon fueled rocket engines. Although liquid oxygen cooling has previously been incorporated in test hardware, more runtime is necessary to gain confidence in this concept. In the previous tests, small oxygen leaks developed at the throat of the thrust chamber and film cooled the hot-gas side of the chamber wall without resulting in catastrophic...
Topics: NASA Technical Reports Server (NTRS), CRACK INITIATION, ENGINE COOLANTS, LIQUID COOLING, LIQUID...
Operational characteristics of a valveless pulse detonation engine system are being characterized by both experimental and computational efforts. The detonation diffraction process from a small \"initiator\" combustor to a larger diameter main combustor in a continuous airflow configuration was evaluated during multi-cycle operation of a pulse detonation engine. The multi-cycle detonation experiments were performed on an axisymetric engine geometry operating on both ethylene and...
Topics: Space vehicles, Propulsion systems, Pulse Detonation Engine, Detonation, Valveless, Space...
Ammonium Nitrate Explosives Containing Nitroalkanes US Patent 3133844
Topics: liquid, explosive, ammonium, explosives, sensitizer, hydrocarbon, prills, nitrate, coupling,...
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110
Oct 7, 2014
10/14
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Lemieux, Y
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Topics: mackenzie, hydrocarbon, geological, potential, keele, cambrian, shale, mountain, rocks, areas,...
Source: http://books.google.com/books?id=Cx9_QxJxiA4C&hl=&source=gbs_api
Bolide Contributions 0088 0100
Topics: lightning, fireball, ball, austrian, dans, fireballs, phenomenon, hydrocarbon, phenomena, les, ball...
Automobile Exhaust Hydrocarbon Analysis by Gas Chromatography from General Motors Corp. 1966. Reprinted from Analytical Chemistry.
Topics: exhaust, column, hydrocarbons, gas, hydrocarbon, adsorption, valve, sampling, pentane, capillary,...
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vii, 274 p. : 29 cm. +
Topics: Hydrocarbon reservoirs, Petroleum -- Geology, Sandstone, Intrusions (Geology), Oil sands, Petroleum...
Rocket engines using liquid oxygen (LOX) and hydrocarbon fuel as the propellants are being given serious consideration for future launch vehicle propulsion. Normally, the fuel is used to regeneratively cool the combustion chamber. However, hydrocarbons such as RP-1 are limited in their cooling capability. Another possibility for the coolant is the liquid oxygen. Combustion chambers previously tested with LOX and RP-1 as propellants and LOX as the collant demonstrated the feasibility of using...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION CHAMBERS, ENGINE COOLANTS, HYDROCARBON FUELS,...
The advantages and limitations of using high speed photography to identify potential combustion anomalies (pops, fuel freezing, reactive stream separation (RSS), carbon formation) were demonstrated. Combustion evaluation criteria were developed for evaluating, characterizing, and screening promising low cost propellant combination(s) and injector element(s) for long life, reusable engine systems. Carbon formation and RSS mechanisms and trends were identified by using high speed color...
Topics: NASA Technical Reports Server (NTRS), COMBUSTION PHYSICS, CRYOGENIC ROCKET PROPELLANTS, FRAME...
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Jul 26, 2010
07/10
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NON
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Resistance measurements are given in graphical for when a simulated lightning discharge strikes on an exposed top hat cover simulator. The test sequence was to measure the electric and magnetic fields induced inside a redesigned solid rocket motor case.
Topics: COMBUSTION, COMBUSTION STABILITY, DESIGN ANALYSIS, DYNAMIC STABILITY, HIGH PRESSURE, PROPULSION...
