Abstract: A method for manufacturing a trench field-effect transistor includes forming an epitaxial layer on a substrate; forming a trench in the epitaxial layer, forming a first insulating layer and a shielding conductor in the trench, where the first insulating layer surrounds the shielding conductor and partially fills the trench; forming a dielectric layer on the epitaxial layer, the first insulating layer, and a side wall of the trench; etching a part of the dielectric layer to form a dielectric region, where the dielectric region is located on the first insulating layer and the side wall of the trench; and forming a second insulating layer and a gate conductor in the trench, where the second insulating layer surrounds the gate conductor, fills the trench, and extends to the surface of the epitaxial layer.

Abstract: A water stopping mechanism configured for a water outlet device comprises one or more pad members configured for elastic deformation. The one or more pad members are configured to be movably disposed in a water outlet chamber of the water outlet device. The one or more pad members at least define a position-providing space, and the one or more pad members comprise a water stopping position and an open position. When in the water stopping position, the one or more pad members elastically hermetically seal and abut an outer peripheral of one or more water outlet ports of the water outlet chamber to achieve water stopping and hermetical sealing, and the one or more pad members are configured to move toward the position-providing space due to increasing of water pressure in the water outlet chamber to terminate the water stopping and the hermetical sealing.

Abstract: The present disclosure discloses a structure for rapidly picking and placing a hand shower comprising a fixed portion, a shower body, and a trigger element. The fixed portion is movably disposed with a locking member, and the shower body is disposed with a locking matching portion. When the locking matching portion is locked to and matched with the locking member, the shower body is fixed relative to the fixed portion. The trigger element is movably disposed on the shower body. When the shower body is fixed relative to the fixed portion, the trigger element contacts the locking member, and movement of the trigger element is configured to drive the locking member to move to enable the locking member to be separated from the locking matching portion and to enable the shower body to be rapidly separated from the fixed portion.

Abstract: Staged absorption ammonia-based decarbonization using an absorption circulating liquid containing ammonium salts to remove carbon dioxide in a gas, and control ammonia escape while realizing efficient decarbonization through staged solution composition control and reaction condition control. Staged solution composition control may include concentration gradient control of ammonium carbonate, ammonium bicarbonate, ammonium carbamate, ammonia, or combinations thereof, which may be characterized by the molar ratio of total ammonia to total CO2. Reaction condition control may include temperature control, pH control, and pressure control. The flue gas may enter the decarbonization tower, and through staged absorption, establishment of concentration, temperature, and multi-point addition of ammonia, decarbonization efficiency may be improved, decarbonization operating costs may be saved, and ammonia escape may be controlled.

Abstract: Apparatus and methods for controlling ammonia escape in an ammonia-based decarbonization system, wherein ammonia may be used as the desulfurization and decarbonization agent, the gas may first enter the desulfurization device for desulfurization to produce ammonium sulfate fertilizer, and the desulfurized gas may enter the decarbonization device to remove carbon dioxide in the gas, and may produce ammonium bicarbonate fertilizer. The decarbonized gas may include free ammonia, and the free ammonia in the gas may be absorbed with the acidic ammonium sulfate solution and acidic water washing liquid of ammonia-based desulfurization.

Abstract: Multi-stage ammonia-based decarbonization, characterized in that ammonia is used as an absorbent to absorb CO2 in a process gas in an absorber, and the absorber may include four or more stages of absorption, where a first-stage absorption, a second-stage absorption, a third-stage absorption, a fourth-stage absorption, and higher-stage absorptions may be sequentially arranged along the flow direction of the process gas; and the temperature of the process gas in the second and third-stage absorptions may be controlled not to be lower than the temperature of the process gas in the first-stage absorption, and the temperature of the process gas in the fourth and any higher-stage absorptions may be controlled to be lower than the temperature of the process gas in the first-stage absorption.

Abstract: Device and methods for producing ammonium bicarbonate in an ammonia-based decarbonization system are provided. The device may include a cooling function zone, an ammonium bicarbonate generation zone, a carbon dioxide absorption zone and an ammonia removal function zone. The cooling function zone may remove heat from the decarbonization system. The ammonium bicarbonate generation zone may generate ammonium bicarbonate. The carbon dioxide absorption zone, which may use multi-stage absorption, may absorb carbon dioxide in process gas. The ammonia removal function zone may remove ammonia in decarbonized process gas. Absorbent ammonia for carbon dioxide removal may be mainly fed to the absorption zone. As a result of the zone control of ammonium bicarbonate generation, CO2 absorption and ammonia removal, the efficiency of decarbonization and absorption may be improved, and ammonia escape may be reduced. Meanwhile, carbon dioxide in flue gas can be used for producing ammonium bicarbonate as a nitrogen fertilizer.

Abstract: Ammonia-based decarbonization cooling apparatus and a method therefor. The cooling apparatus may include: a first-stage cooling function zone which may use a first circulating liquid to cool a process gas to a temperature of Tgas 1, a second-stage cooling function zone which may use a second circulating liquid to cool the process gas to a temperature of Tgas 2, and a third-stage cooling function zone which may use a third circulating liquid to cool the process gas to a temperature of Tgas 3, wherein Tgas 3<Tgas 2<Tgas 1<Tgas 0, and Tgas 0 is an initial temperature of the process gas when entering the first-stage cooling function zone; a first cold source for cooling the first circulating liquid, a second cold source for cooling the second circulating liquid, and a third cold source for cooling the third circulating liquid, wherein the three cold sources may be different.

Abstract: Waste heat recovery in an ammonia-based desulfurization and decarbonization system. The heat in the decarbonization system may be removed by using the heat of the process gas before desulfurization. The process gas before desulfurization may heat an intermediate medium through a gas heat exchanger. The intermediate medium may drive a refrigerator for refrigeration. A refrigerant may obtain the cooling capacity and may then cool the decarbonized process gas through a liquid-liquid heat exchanger.

Abstract: The present invention provides a pluripotent stem cell comprising a co-expression vector in which Runx1 and Hoxa9 are of in tandem, and a T cell differentiated therefrom and application thereof. In the present invention, Pluripotent stem cells inducibly co-expressing exogenous Runx1 and Hoxa9 are successfully established by introducing an exogenous vector co-expressing Runx1 and Hoxa9 into pluripotent stem cells. The pluripotent stem cells are directionally differentiated into T-lineage progenitor cells and will be developed into T cells. The pluripotent stem cell-derived T cells obtained by the method of the present invention are not only functionally normal but also have no tumorigenic risk.

Abstract: Controlling aerosol production during absorption in ammonia-based desulfurization. The absorption reaction temperature, the oxygen content and water content of the process gas may be controlled, and an absorption circulating liquid containing ammonium sulfite may be used for removing sulfur dioxide in flue gas, so as to control aerosol production during absorption in the ammonia-based desulfurization.

Abstract: The present invention provides a pluripotent stem cell comprising a co-expression vector in which Runx1 and Hoxa9 are of in tandem, and a T cell differentiated therefrom and application thereof. In the present invention, Pluripotent stem cells inducibly co-expressing exogenous Runx1 and Hoxa9 are successfully established by introducing an exogenous vector co-expressing Runx1 and Hoxa9 into pluripotent stem cells. The pluripotent stem cells are directionally differentiated into T-lineage progenitor cells and will be developed into T cells. The pluripotent stem cell-derived T cells obtained by the method of the present invention are not only functionally normal but also have no tumorigenic risk.

Abstract: Controlling aerosol production during absorption in ammonia-based desulfurization.

Abstract: The present invention provides a pluripotent stein cell comprising a co-expression vector in which Runx1 and Hoxa9 are of in tandem, and a T cell differentiated therefrom and application thereof. In the present invention, Pluripotent stein cells inducibly co-expressing exogenous Runx1 and Hoxa9 are successfully established by introducing an exogenous vector co-expressing Runx1 and Hoxa9 into pluripotent stein cells. The pluripotent stein cells are directionally differentiated into T-lineage progenitor cells and will be developed into T cells. The pluripotent stein cell-derived T cells obtained by the method of the present invention are not only functionally normal but also have no tumorigenic risk.

Abstract: Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO2 concentration provided by the inlet CEMS, and a predetermined SO2 concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO2 concentration and a change trend provided by the outlet CEMS.

Abstract: Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO2 concentration provided by the inlet CEMS, and a predetermined SO2 concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO2 concentration and a change trend provided by the outlet CEMS.

Abstract: Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO2 concentration provided by the inlet CEMS, and a predetermined SO2 concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO2 concentration and a change trend provided by the outlet CEMS.

Abstract: Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO2 concentration provided by the inlet CEMS, and a predetermined SO2 concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO2 concentration and a change trend provided by the outlet CEMS.

Abstract: The present invention relates to a method for inducing the transdifferentiation of B lymphoid cells into T lymphoid cells using transcription factor Hoxb5, and related products and applications thereof. The method of the present invention specifically comprises: introducing Hoxb5, a nucleic acid molecule encoding Hoxb5 or a construct comprising the nucleic acid molecule into the B lymphoid cells to obtain the B lymphoid cells with overexpressed Hoxb5; then implanting the obtained B lymphoid cells into the body of a subject to obtain regenerated T cell progenitor cells by way of transdifferentiation, and then the T cell progenitor cells differentiate into mature T cells with functions. The regenerated T cells obtained using the method of the present invention are not only functionally normal, but also show no risk of tumorigenesis or extremely low risk of tumorigenesis.

Abstract: The present invention discloses a method for remolding bone marrow microenvironment in a subject having an impaired bone marrow microenvironment, which comprises implanting a composition comprising isolated mesenchymal stromal cells (MSCs) into the bone marrow cavity of the subject. The method of the present invention successfully remolds the bone marrow microenvironment, recovers the normal hematopoiesis of bone marrow, inhibits/delays the pathological process of leukemia and significantly prolongs the survival period. In addition, the method according to the present invention can be used for the treatment of hematologic tumors such as leukemia and aplastic anemia (AA), which is safe and effective but has no side effects.