Abstract: Disclosed is a microwave chemical method for totally extracting fluorine and rare earth from bastnaesite concentrate, including: alkaline conversion defluorination of bastnaesite through microwave irradiation, microwave-assisted leaching of fluorine, solid-liquid separation of leaching solution and microwave-assisted leaching of rare earth. The rare earth hydrochloric acid solution for leaching contains no fluorine ion, so that the fluorine interference of subsequent processes such as impurity removal can be completely avoided; the fluorine and the rare earth are leached with microwaves, which does not need the stirring, so that the automatic control is easy to implement; the fluorine and rare earth leaching speed is high, the leaching time is short and the complete leaching of fluorine and little residual alkali in the slag can be realized by two-time leaching; and no fluorine-containing waste water is discharged, and the total extraction of the rare earth can be realized by one-time leaching.

Abstract: Methods and computer systems for storing a query plan in a cache are provided. The method can include: determining a use frequency of the query plan; determining a target storage layer for storing the query plan based on the determined use frequency, wherein the cache includes at least two storage layers and each of the storage layers is associated with a compression level of query plans; processing the query plan according to the compression level of the target storage layer; and storing the processed query plan in the target storage layer.

Abstract: A array substrate includes: a first sub-pixel, a second sub-pixel and a dummy sub-pixel that are located in a display region; a luminance attenuation degree of the first sub-pixel is greater than that of the second sub-pixel along a target direction; and a light-emitting layer of the dummy sub-pixel is configured to emit light having a color the same as that of light emitted by the first sub-pixel. As the dummy sub-pixel further includes the connecting electrode electrically connecting the pixel circuit with the light-emitting layer of the dummy sub-pixel the luminance attenuation of the first sub-pixel may be effectively compensated by driving the dummy sub-pixel to emit light.

Abstract: A array substrate includes: a first sub-pixel, a second sub-pixel and a dummy sub-pixel that are located in a display region; a luminance attenuation degree of the first sub-pixel is greater than that of the second sub-pixel along a target direction; and a light-emitting layer of the dummy sub-pixel is configured to emit light having a color the same as that of light emitted by the first sub-pixel. As the dummy sub-pixel further includes the connecting electrode electrically connecting the pixel circuit with the light-emitting layer of the dummy sub-pixel the luminance attenuation of the first sub-pixel may be effectively compensated by driving the dummy sub-pixel to emit light.

Abstract: Vanillin and vanillyl alcohol were modified into methacrylated derivatives. The structures of vanillin-based monomers were characterized by NMR and FTIR. Renewable polymers were prepared from these vanillin-based monomers. The effects of structure and functionality of the vanillin-based monomers on the thermo-mechanical properties of the resulting polymers were investigated and discussed. Polymers from methacrylated vanillyl alcohol (MVA) demonstrated greater storage moduli, higher glass transition temperatures, and thermal resistance than those from methacrylated vanillin (MV) because of the different functionalities of their monomers.

Abstract: Various embodiments disclosed relate to aziridinated triglycerides and polymers formed therefrom. In various embodiments, the present invention provides an aziridinated triglyceride having the structure described herein. In various embodiments, the present invention provides a method of making the aziridinated triglyceride, a method of crosslinking the aziridinated triglyceride to form a polymer, the polymer formed from the aziridinated triglyceride, a triglyceride with at least one pendent unsaturated group that can be used to form the aziridinated triglyceride, and a method of making the triglyceride having at least one pendent unsaturated group.

Abstract: A method for decreasing nitrogen oxides of a pulverized coal boiler using burners of internal combustion type including during the operation of the boiler, ignition sources in the burners of internal combustion type mounted on side walls of the boiler are always in a working state, and igniting the pulverized coal in the burners in advance; decreasing secondary air amount in a primary combustion zone of the boiler so that the primary combustion zone is in a relatively strong reducing atmosphere and an oxygen-deficient condition for inhibiting generation of NOx is created; and supplying remaining air from an upper part of a furnace of the boiler in a form of over-fire air, so that a deep air staging is carried out in the total furnace. Thus, the NOx generation of combustion can be effectively controlled on the premise of not decreasing efficiency of the boiler.

Abstract: Various embodiments disclosed relate to aziridinated triglycerides and polymers formed therefrom. In various embodiments, the present invention provides an aziridinated triglyceride having the structure described herein. In various embodiments, the present invention provides a method of making the aziridinated triglyceride, a method of crosslinking the aziridinated triglyceride to form a polymer, the polymer formed from the aziridinated triglyceride, a triglyceride with at least one pendent unsaturated group that can be used to form the aziridinated triglyceride, and a method of making the triglyceride having at least one pendent unsaturated group.

Abstract: Various embodiments disclosed relate to aziridinated triglycerides and polymers formed therefrom. In various embodiments, the present invention provides an aziridinated triglyceride having the structure described herein. In various embodiments, the present invention provides a method of making the aziridinated triglyceride, a method of crosslinking the aziridinated triglyceride to form a polymer, the polymer formed from the aziridinated triglyceride, a triglyceride with at least one pendent unsaturated group that can be used to form the aziridinated triglyceride, and a method of making the triglyceride having at least one pendent unsaturated group.

Abstract: A coating for protecting a metal substrate from corrosion comprising a first composition applied on or over the metal substrate and a second composition applied on or over the first composition. The first composition is positioned between the second composition and the metal substrate, the first composition includes a first layer directly applied on or over the metal substrate and a second layer directly applied on or over the first layer, and the first layer of the first composition is positioned between the second layer of the first composition and the metal substrate. The first layer of the first composition comprises positively charged polymers and the second layer comprises negatively charged polymers and the second composition comprises positively charged polymers and negatively charged silicate clay.

Abstract: Vanillin and vanillyl alcohol were modified into methacrylated derivatives. The structures of vanillin-based monomers were characterized by NMR and FTIR. Renewable polymers were prepared from these vanillin-based monomers. The effects of structure and functionality of the vanillin-based monomers on the thermo-mechanical properties of the resulting polymers were investigated and discussed. Polymers from methacrylated vanillyl alcohol (MVA) demonstrated greater storage moduli, higher glass transition temperatures, and thermal resistance than those from methacrylated vanillin (MV) because of the different functionalities of their monomers.

Abstract: Various embodiments disclosed relate to aziridinated triglycerides and polymers formed therefrom. In various embodiments, the present invention provides an aziridinated triglyceride having the structure described herein. In various embodiments, the present invention provides a method of making the aziridinated triglyceride, a method of crosslinking the aziridinated triglyceride to form a polymer, the polymer formed from the aziridinated triglyceride, a triglyceride with at least one pendent unsaturated group that can be used to form the aziridinated triglyceride, and a method of making the triglyceride having at least one pendent unsaturated group.

Abstract: A pulverized coal concentrator for a pulverized coal burner, the concentrator is fixedly arranged inside the pulverized coal burner and comprises a front part (102) and a rear part (101), wherein the front part (1020 is designed as a bowl-shaped structure, for guiding and concentrating an air-pulverized coal flow, and the rear part (101) is designed as a cylinder-shaped structure, for maintaining a proper extension of the dense phase zone of the air pulverized coal flow. Also a pulverization coal burner is provided comprising the pulverized coal concentrator, in particular an internal combustion-type pulverized coal burner. The pulverized coal concentrator increases the adaptability of burner to coal quality, air velocity and pulverized coal density.

Abstract: A pulverized coal concentrator for a pulverized coal burner, the concentrator is fixedly arranged inside the pulverized coal burner and comprises a front part (102) and a rear part (101), wherein the front part (1020 is designed as a bowl-shaped structure, for guiding and concentrating an air-pulverized coal flow, and the rear part (101) is designed as a cylinder-shaped structure, for maintaining a proper extension of the dense phase zone of the air pulverized coal flow. Also a pulverization coal burner is provided comprising the pulverized coal concentrator, in particular an internal combustion-type pulverized coal burner. The pulverized coal concentrator increases the adaptability of burner to coal quality, air velocity and pulverized coal density.

Abstract: A method for decreasing nitrogen oxides of a pulverized coal boiler using burners (2) of internal combustion type comprising: designing or changing all or part of burners of the pulverized coal boiler as internal combustion type burners (2), in which the ignition sources may be plasma generators (1) or ignition devices such as small oil guns etc., and the power thereof can be adjusted for controlling the ignition intensity in the burners (2). The burners (2) are interiorly divided into several stage combustion chambers (5) and are provided with pulverized coal concentrators (4) which do deep fuel staging in the burners (2).