Abstract: The present invention discloses a trench MOSFET device manufacturing method, comprising: epitaxially forming a base area on a substrate; forming a first trench in the base area; forming a P-type layer on the inner surface of the first trench; filling the P-type layer with polysilicon; forming a second trench above the first trench; and forming a gate structure in the second trench. The present invention correspondingly discloses a trench MOSFET device. A smaller on-resistance is obtained by the concept of super junction, the Miller capacitance from a gate electrode to a drain electrode is reduced by the polysilicon technology of separated trenches, and a trench MOSFET device with a compact structure, a high primitive cell density and a high current density can be manufactured.

Abstract: The present application relates to a method for preparing crystalline D-psicose. In the present application, crystalline D-psicose is prepared by means of combining an evaporative crystallization method and a cooling crystallization method, so that the preparation process is simple, the operation is easy, and the crystallization period is short. In the present application, a seed crystal is added when the solid content is relatively low (70-75%) in an evaporative crystallization process, so that the crystallization process is facilitated, the growth speed of the crystal in each direction is more uniform, the whole crystallization period can be shortened, and the energy consumption is reduced; and after the evaporative crystallization is finished, crystal regulation is carried out, so that the crystal size tends to be equalized, the crystal surface grows to be smooth, and the crystal form is perfected.

Abstract: The present application relates to a method for preparing crystalline D-psicose. In the present application, crystalline D-psicose is prepared by means of combining an evaporative crystallization method and a cooling crystallization method, so that the preparation process is simple, the operation is easy, and the crystallization period is short. In the present application, a seed crystal is added when the solid content is relatively low (70-75%) in an evaporative crystallization process, so that the crystallization process is facilitated, the growth speed of the crystal in each direction is more uniform, the whole crystallization period can be shortened, and the energy consumption is reduced; and after the evaporative crystallization is finished, crystal regulation is carried out, so that the crystal size tends to be equalized, the crystal surface grows to be smooth, and the crystal form is perfected.

Abstract: The invention relates to a strain of Trichoderma reesei BLCY-007 and its application in the production of xylooligosaccharides.

Abstract: Provided are an Aspergillus oryzae BLCY-006 strain and an application thereof in the preparation of a galactooligosaccharide. The strain produces ?-galactosidase, and the enzyme activity can reach 300 U/ml after culturing and fermentation, which is more than 50% higher than traditional ?-galactosidase activity. The enzyme also has lactose and glucose resistance properties.

Abstract: A method for preparing high-purity D-psicose, comprising the following steps: (1) centrifuging a fermentation broth of Bacillus subtilis, and then subjecting the bacteria to homogenization to obtain a mixed solution containing D-psicose 3-epimerase; (2) preparing a fructose solution, adding the mixed solution containing D-psicose 3-epimerase to the fructose solution, adjusting the pH, adding cobalt chloride thereto, and performing the reaction at a certain temperature; and feeding the fructose solution to the reaction solution, continuing the reaction, and stopping the reaction, obtaining a crude D-psicose solution; and (3) subjecting the crude D-psicose solution to decolorization, filtration, ion exchange, chromatographic separation, concentration, and then crystallization or drying, obtaining D-psicose.

Abstract: Provided are an aspergillus oryzae BLCY-006 strain and an application thereof in the preparation of a galactooligosaccharide. The strain produces ?-galactosidase, and the enzyme activity can reach 300 U/ml after culturing and fermentation, which is more than 50% higher than traditional ?-galactosidase activity. The enzyme also has lactose and glucose resistance properties.

Abstract: A Bacillus subtilis strain or a progeny thereof, a method of culturing the same and uses thereof. The invention also relates to a culture and lysate of the Bacillus subtilis strain or its progeny, and a method for producing D-psicose epimerase and producing D-psicose using the Bacillus subtilis strain or its progeny.

Abstract: A method for preparing high-purity D-psicose, comprising the following steps: (1) centrifuging a fermentation broth of Bacillus subtilis, and then subjecting the bacteria to homogenization to obtain a mixed solution containing D-psicose 3-epimerase; (2) preparing a fructose solution, adding the mixed solution containing D-psicose 3-epimerase to the fructose solution, adjusting the pH, adding cobalt chloride thereto, and performing the reaction at a certain temperature; and feeding the fructose solution to the reaction solution, continuing the reaction, and stopping the reaction, obtaining a crude D-psicose solution; and (3) subjecting the crude D-psicose solution to decolorization, filtration, ion exchange, chromatographic separation, concentration, and then crystallization or drying, obtaining D-psicose.

Abstract: A resistant dextrin and a method for preparing the same. In the resistant dextrin, molar content of DP1 is smaller than or equal to 1%, molar content of DP2 is smaller than or equal to 4.5%, molar content of DP3 is smaller than or equal to 7.0%, an average degree of polymerization is 6-12, a pH value is 3.0-6.0, and molar content of dietary fibers is greater than or equal to 85%. The present invention further relates to a method for preparing the resistant dextrin. Since the present invention uses starch as the raw material and divides dextrinization reaction into two stages for the first time, the degree of polymerization of the polymerization reaction is reliably guaranteed, the number of caused side reactions is decreased at the same time and the difficulty in subsequent purification treatment is greatly decreased.

Abstract: A Bacillus subtilis strain or a progeny thereof, a method of culturing the same and uses thereof. The invention also relates to a culture and lysate of the Bacillus subtilis strain or its progeny, and a method for producing D-psicose epimerase and producing D-psicose using the Bacillus subtilis strain or its progeny.

Abstract: Systems, methods, and non-transitory computer readable media can obtain a first event stream including one or more events of a first type, where each event of the first type is associated with a timestamp. A second event stream including one or more events of a second type can be obtained, where each event of the second type is associated with a timestamp. The first event stream and the second event stream can be merged to generate information associated with a metric relating to a system, based on the timestamps associated with the one or more events of the first type and the timestamps associated with the one or more events of the second type.

Abstract: Systems, methods, and non-transitory computer readable media can obtain a first event stream including one or more events of a first type, where each event of the first type is associated with a timestamp. A second event stream including one or more events of a second type can be obtained, where each event of the second type is associated with a timestamp. The first event stream and the second event stream can be merged to generate information associated with a metric relating to a system, based on the timestamps associated with the one or more events of the first type and the timestamps associated with the one or more events of the second type.

Abstract: A resistant dextrin and a method for preparing the same. In the resistant dextrin, molar content of DP1 is smaller than or equal to 1%, molar content of DP2 is smaller than or equal to 4.5%, molar content of DP3 is smaller than or equal to 7.0%, an average degree of polymerization is 6-12, a pH value is 3.0-6.0, and molar content of dietary fibers is greater than or equal to 85%. The present invention further relates to a method for preparing the resistant dextrin. Since the present invention uses starch as the raw material and divides dextrinization reaction into two stages for the first time, the degree of polymerization of the polymerization reaction is reliably guaranteed, the number of caused side reactions is decreased at the same time and the difficulty in subsequent purification treatment is greatly decreased.