Abstract: Processes for producing ethylene-based polymers and oligomers from ethanol include the steps of contacting the ethanol and a catalyst to produce a reaction mixture containing ethylene, wherein a first portion of the ethanol is derived from a biomass and a second portion of the ethanol is derived from a plastic, a mixed solid waste stream, or a combination thereof, separating at least a portion of the ethylene from the reaction mixture, and contacting ethylene with a suitable polymerization or oligomerization catalyst composition to produce the ethylene polymer or ethylene oligomers. A related process for producing ethylene-based polymers and oligomers uses a first ethylene feed derived from ethanol and a second ethylene feed derived from a plastic, a mixed solid waste stream, or a combination thereof.

Abstract: A process to produce 1-octene and 1-decene includes (a) separating a composition containing an oligomer product—which contains 15 to 80 mol % C6 olefins, 20 to 80 mol % C8 olefins, and 5 to 20 mol % C10+ olefins—into a first oligomer composition containing C6 alkanes and at least 85 mol % C6 olefins (e.g., 1-hexene), a second oligomer composition containing at least 20 mol % C8 olefins (e.g., 1-octene), and a heavies stream containing C10+ olefins, then (b) contacting a metathesis catalyst system with the first oligomer composition to form a first composition comprising C10 linear internal olefins, (c) contacting the C10 linear internal olefins with a catalytic isomerization catalyst system in the presence of photochemical irradiation to form a second composition comprising 1-decene, and (d) purifying the second composition to isolate a third composition comprising at least 90 mol % 1-decene.

Abstract: Methods for determining ethylene concentration in an ethylene oligomerization reactor using an ultrasonic flow meter are described, and these methods are integrated into ethylene oligomerization processes and related oligomerization reactor systems.

Abstract: Methods for determining ethylene concentration in an ethylene oligomerization reactor using an ultrasonic flow meter are described, and these methods are integrated into ethylene oligomerization processes and related oligomerization reactor systems.

Abstract: A process to produce 1-octene and 1-decene includes (a) separating a composition containing an oligomer product—which contains from 15 to 80 mol % C6 olefins, from 20 to 80 mol % C8 olefins, and from 5 to 20 mol % C10+ olefins—into a first oligomer composition containing C6 alkanes and at least 85 mol % C6 olefins (e.g., 1-hexene), a second oligomer composition containing at least 85 mol % C8 olefins (e.g., 1-octene), and a heavies stream containing C10+ olefins, then (b) contacting a metathesis catalyst system with the first oligomer composition to form a first composition comprising C10 linear internal olefins, (c) contacting the C10 linear internal olefins with an isomerization hydrofunctionalization catalyst system to form a second composition containing a functionalized alkane, (d) retro-hydrofunctionalizing the functionalized alkane to form a third composition containing 1-decene, and (e) purifying the third composition to isolate a fourth composition containing at least 90 mol % 1-decene.

Abstract: Various biomass reactors systems and methods of pyrolyzing biomass are disclosed. One type of biomass reactor system comprises a plurality of biomass processing stations configured in series, each station comprising an auger reactor including an auger inlet for receiving biomass and a transfer screw for conveying the biomass through the auger reactor.

Abstract: A method of capturing student performance can be provided that includes enabling a course creator to generate assessment data related to learning assessments for an online course and to generate learning outcomes for the online course, associating the assessment data with the learning outcomes, such that at least some of the learning assessments correspond to at least some of the learning outcomes, and generating an online classroom. The method may further include providing the learning assessments to students enrolled in the online course using the online classroom, wherein the students can generate completed learning assessments, and determining, for each of the completed learning assessments, whether one or more of the learning outcomes were met by each of the students.

Abstract: A method of capturing student performance can be provided that includes enabling a course creator to generate assessment data related to learning assessments for an online course and to generate learning outcomes for the online course, associating the assessment data with the learning outcomes, such that at least some of the learning assessments correspond to at least some of the learning outcomes, and generating an online classroom. The method may further include providing the learning assessments to students enrolled in the online course using the online classroom, wherein the students can generate completed learning assessments, and determining, for each of the completed learning assessments, whether one or more of the learning outcomes were met by each of the students.

Abstract: A method of capturing student performance can be provided that includes enabling a course creator to generate assessment data related to learning assessments for an online course and to generate learning outcomes for the online course, associating the assessment data with the learning outcomes, such that at least some of the learning assessments correspond to at least some of the learning outcomes, and generating an online classroom. The method may further include providing the learning assessments to students enrolled in the online course using the online classroom, wherein the students can generate completed learning assessments, and determining, for each of the completed learning assessments, whether one or more of the learning outcomes were met by each of the students.

Abstract: A method for the production of dimethyl ether is disclosed which utilizes: a dimethyl ether synthesis catalyst that converts synthesis gas to a dimethyl ether containing stream, wherein the dimethyl ether containing stream is directed to an absorption column containing water as a scrubbing agent and operating in a temperature range from 1° C.-20° C. and pressure range from 20 psig to 500 psig, and wherein the scrubbing liquid resulting from the exposure of the dimethyl ether containing stream to the absorption column is directed to a flash evaporation unit operating at 25° C.-100° C. and pressure range ?15 psig to 15 psig to produce a product stream rich in dimethyl ether.

Abstract: Various biomass reactors systems and methods of pyrolyzing biomass are disclosed. One type of biomass reactor system comprises a plurality of biomass processing stations configured in series, each station comprising an auger reactor including an auger inlet for receiving biomass and a transfer screw for conveying the biomass through the auger reactor.

Abstract: A method of capturing student performance can be provided that includes enabling a course creator to generate assessment data related to learning assessments for an online course and to generate learning outcomes for the online course, associating the assessment data with the learning outcomes, such that at least some of the learning assessments correspond to at least some of the learning outcomes, and generating an online classroom. The method may further include providing the learning assessments to students enrolled in the online course using the online classroom, wherein the students can generate completed learning assessments, and determining, for each of the completed learning assessments, whether one or more of the learning outcomes were met by each of the students.

Abstract: A method for the production of dimethyl ether is disclosed which utilizes: a dimethyl ether synthesis catalyst that converts synthesis gas to a dimethyl ether containing stream, wherein the dimethyl ether containing stream is directed to an absorption column containing water as a scrubbing agent and operating in a temperature range from 1° C.-20° C. and pressure range from 20 psig to 500 psig, and wherein the scrubbing liquid resulting from the exposure of the dimethyl ether containing stream to the absorption column is directed to a flash evaporation unit operating at 25° C.-100° C. and pressure range ?15 psig to 15 psig to produce a product stream rich in dimethyl ether.

Abstract: A method of capturing student performance can be provided that includes enabling a course creator to generate assessment data related to learning assessments for an online course and to generate learning outcomes for the online course, associating the assessment data with the learning outcomes, such that at least some of the learning assessments correspond to at least some of the learning outcomes, and generating an online classroom. The method may further include providing the learning assessments to students enrolled in the online course using the online classroom, wherein the students can generate completed learning assessments, and determining, for each of the completed learning assessments, whether one or more of the learning outcomes were met by each of the students.

Abstract: A method of capturing student performance can be provided that includes enabling a course creator to generate assessment data related to learning assessments for an online course and to generate learning outcomes for the online course, associating the assessment data with the learning outcomes, such that at least some of the learning assessments correspond to at least some of the learning outcomes, and generating an online classroom. The method may further include providing the learning assessments to students enrolled in the online course using the online classroom, wherein the students can generate completed learning assessments, and determining, for each of the completed learning assessments, whether one or more of the learning outcomes were met by each of the students.

Abstract: An apparatus and method for analyzing liquid samples employs first and second bidirectional ports that permit liquids to be introduced to first and second liquid waveguide capillary cells at the same time. The direction of liquid flow through the apparatus and roles of components may be reversed to prevent or overcome obstruction by particulates and other debris. The apparatus and method can detect and map colored dissolved organic matter and can detect, discriminate and map algal species or algal blooms including red tide in an automated, unattended manner within large aquatic systems.

Abstract: The present invention provides a bacteriocin having a molecular weight of about 4.4 kDa and methods involving the use of this bacteriocin. The bacteriocin preferably has an amino acid sequence as shown in SEQ ID NO:5 (FIG. 3). The present invention also provides a DNA molecule encoding this bacteriocin.