Engineering United States

More specifically, the invention involves the use of Thiobacillus denitrificans under anaerobic conditions to oxidize sulfur compounds such as hydrogen sulfide to sulfate. The process may be carried out in various ways such as in a batch or a continuous bioreactor system using a suspended or an immobilized biocatalyst. The method is particularly applicable to treating natural gas containing hydrogen sulfide and producing a biomass byproduct. 

ENVIRONMENTAL BIOSCIENCE CORPORATION/ ENERGY BIOSYSTEMS CORP./ENCHIRA BIOTECHNOLOGY CORP. (UNITED STATES) 

For comparison purposes and as a quick reference guide, Table 1 collects all the inventions in chronological order. Not all the patents are shown in Table 1, since in most cases global coverage was attempted, instead only the representative patents of each patent family are included. 

An analysis of the intellectual property package awarded before 1994 might suggest a completely developed process. However, no demonstration plant was built. So, certain 

First inventor Patent Title Summary of main claim 

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TIF TU TUdw U.S. ACE U.S. EPA WAPT WS WT Toxicity Incremental Factor Toxic Unit Toxic Unit expressed on a dry weight basis United States Army Corps of Engineers United States Environmental Protection Agency Weighed Average of Phase Toxicity Whole Sediment Wet Sediment. 

United States Engineers United States Expeditionary Forces... 

Liquid benzene and liquid -hexane are blended to form a stream flowing at a rate of 700 Ib /h. An on-line densitometer (an instrument used to determine density) indicates that the stream has a density of 0.850 g/mL. Using specific gravities from Table B.1, estimate the mass and volumetric feed rates of the two hydrocarbons to the mixing vessel (in American engineering units). State at least two assumptions required to obtain the estimate from the recommended data. 

Jeffrey A. Starke Department of Geography and Environmental Engineering, United States Military Academy, West Point, NY 10996... 

The proponent agency of this publication is the Office of the Chief of Engineers, United States Army. Users are invited to send comments and suggested improvements on DA Form 2028 (Recommended Changes to Publications and Blank Forms) to HQUSACE, (CEMP-ET), WASH DC 20314-1000... 

Civil engineering—United States—Personnel management. 2. Qvil engineers— United States. 3. Diversity in the workplace—United States. I. Tide. 

Mah, Richard S.H., Chemical process structures and information flows. Howard Brenner (Eds.), Butterworths Series in Chemical Engineering, United States of America, 1990, Chap. 6. 

Aerospace engineering United States, History Electric industry workers Great Britain, History Electronics Engineering Industrial management Mass production Technology Telecommunication... 

In order to complete the biodiesel production process and to utilize biodiesel B5 (blend of 5% biodiesel and 95% market diesel) in engines, a national research project, code DTDL.2007G/19, was set up and mn by the Vietnamese Institute of Industrial Chemistry. The School of Transportation Engineering, Hanoi University of Science and Technology, was one of the collaborative institutions that took care of the engine tests. The project was aimed at biodiesel-based cat-fish fat production and application of B5 fuel in diesel engines (United States Environmental Protection Agency, 2002). 

Figure 23.21 US Environmental Protection Agency evaluation of biodiesel effects on pollutant emissions for heavy-duty engines (United States Environmental Protection Agency, 2002).

Morey, S. (1826), Gas or vapor engine. United States Patent Number 4378. 

The classification of motor oils has not been completed in the ISO standard because the technical differences between motors in different parts of the world, particularly Europe and the United States, make the implementation of a single system of classification and specifications very difficult. In practice, different systems coming from national or international organizations are used. The best known is the SAE viscosity classification from the Society of Automotive Engineers, developed in the United States. 

Molecular modeling has evolved as a synthesis of techniques from a number of disciplines—organic chemistry, medicinal chemistry, physical chemistry, chemical physics, computer science, mathematics, and statistics. With the development of quantum mechanics (1,2) ia the early 1900s, the laws of physics necessary to relate molecular electronic stmcture to observable properties were defined. In a confluence of related developments, engineering and the national defense both played roles ia the development of computing machinery itself ia the United States (3). This evolution had a direct impact on computing ia chemistry, as the newly developed devices could be appHed to problems ia chemistry, permitting solutions to problems previously considered intractable. 

Alloy development in the former Soviet Union has produced alloys having strengths equivalent to IN-100 and Mar-M-200. Alloys developed in the United States and United Kingdom are also widely used in French aircraft engines. 

Appllca.tlons. The principal appHcations of nickel-base superalloys are in gas turbines, where they are utilized as blades, disks, and sheet metal parts. Abcraft gas turbines utilized in both commercial and military service depend upon superalloys for parts exposed to peak metal temperatures in excess of 1000°C. Typical gas turbine engines produced in the United States in 1990 utilized nickel and cobalt-base superalloys for 46% of total engine weight (41). However, programs for future aerospace propulsion systems emphasize the need for lightweight materials having greater heat resistance. For such apphcations, intermetallics matrix composites and ceramic composites are expected to be needed. 

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