Abstract: Method of manufacturing a woven fabric for a composite component for a gas turbine engine. The method includes weaving a plurality of reinforcing fiber tows to form the woven fabric. The woven fabric is a three-dimensional woven fabric. At least one of a plurality of first fiber tows or a plurality of second fiber tows is arranged in the thickness direction to form a plurality of fiber layers. The method also includes interweaving a plurality of interlocking fiber tows through the plurality of fiber layers to connect the plurality of fiber layers to each other in a thickness direction to form an interlocked region, and forming a bifurcated region where adjacent layers of the plurality of fiber layers are free from interconnection by interlocking fiber tows forming a plurality of bifurcated layers.

Abstract: A method of manufacturing a composite component having an outer shell, an inner hub, and a plurality of struts connecting the outer shell and the inner hub. A plurality of outer shell preform portions having bifurcated strut portions are connected together to form an outer shell hoop preform, and a plurality of inner hub preform portions having bifurcated strut portions are connected together to form an inner hub hoop preform. The bifurcated strut portions are arranged to extend between the outer shell hoop preform and the inner hub hoop preform, and are arranged adjacent to one another to form a strut preform. A matrix material is injected into the mold tooling structure and a curing process is applied to the mold tooling structure to obtain the composite component.

Abstract: A method of manufacturing a woven fabric for a composite component for a turbine engine. The method includes weaving a plurality of reinforcing fiber tows to form a woven fabric with a surface. The reinforcing fiber tows include a plurality of first fiber tows and a plurality of second fiber tows oriented transversely to the plurality of first fiber tows. The woven fabric is a three-dimensional woven fabric. The method also includes forming, during weaving the plurality of reinforcing fiber tows, a cavity extending in the first direction. Forming the cavity includes positioning the plurality of first fiber tows to create the cavity and weaving the plurality of second fiber tows around the cavity. The method further includes forming, during weaving the plurality of reinforcing fiber tows, a slit connecting the cavity to the surface.

Abstract: A method of manufacturing a woven fabric for a composite component for a turbine engine. The method includes weaving a plurality of reinforcing fiber tows to form a woven fabric with a surface. The reinforcing fiber tows include a plurality of first fiber tows and a plurality of second fiber tows oriented transversely to the plurality of first fiber tows. The woven fabric is a three-dimensional woven fabric. The method also includes forming, during weaving the plurality of reinforcing fiber tows, a cavity extending in the first direction. Forming the cavity includes positioning the plurality of first fiber tows to create the cavity and weaving the plurality of second fiber tows around the cavity. The method further includes forming, during weaving the plurality of reinforcing fiber tows, a slit connecting the cavity to the surface.

Abstract: A method of manufacturing a composite component having an outer shell, an inner hub, and a plurality of struts connecting the outer shell and the inner hub. An outer shell hoop preform and an inner hub hoop preform are woven and installed on a mold tooling structure, a plurality of outer shell pi-joint members are integrally woven to the outer shell hoop preform, and a plurality of inner hub pi-joint members are integrally woven to the inner hub hoop preform. A plurality of strut preforms are connected between respective ones of the outer shell pi-joint members and the inner hub pi-joint members. A matrix material is injected into the mold tooling structure and a curing process is applied to the mold tooling structure to obtain the composite component.

Abstract: A method of manufacturing a composite component including an outer shell, an inner hub, and a plurality of struts connecting the outer shell and the inner hub. The method includes installing an outer shell hoop preform on a mold tooling structure, installing an inner hub hoop preform on the mold tooling structure, and inserting strut preforms through outer shell strut slots, and through inner hub strut slots. A first end of the strut preform has bifurcated end portions that are overlayed onto the outer shell hoop preform, and a second end of the strut preform has bifurcated end portions that are overlayed onto one of the outer shell hoop preform or the inner hub hoop preform. A matrix material is injected into the mold tooling structure and a curing process is applied to the mold tooling structure to obtain a molded composite component.

Abstract: A method of manufacturing a composite component including an outer shell, an inner hub, and a plurality of struts connecting the outer shell and the inner hub. The method includes installing an outer shell hoop preform on a mold tooling structure, installing an inner hub hoop preform on the mold tooling structure, and inserting strut preforms through outer shell strut slots, and through inner hub strut slots. A first end of the strut preform has bifurcated end portions that are overlayed onto the outer shell hoop preform, and a second end of the strut preform has bifurcated end portions that are overlayed onto one of the outer shell hoop preform or the inner hub hoop preform. A matrix material is injected into the mold tooling structure and a curing process is applied to the mold tooling structure to obtain a molded composite component.

Abstract: A method of manufacturing a composite component including an outer shell, an inner hub, and a plurality of struts connecting the outer shell and the inner hub. The method includes installing an outer shell hoop preform on a mold tooling structure, installing an inner hub hoop preform on the mold tooling structure, and inserting strut preforms through outer shell strut slots, and through inner hub strut slots. A first end of the strut preform has bifurcated end portions that are overlayed onto the outer shell hoop preform, and a second end of the strut preform has bifurcated end portions that are overlayed onto one of the outer shell hoop preform or the inner hub hoop preform. A matrix material is injected into the mold tooling structure and a curing process is applied to the mold tooling structure to obtain a molded composite component.

Abstract: A preform for making a casing structure for turbine engines. The preform includes a plurality of reinforcing fiber tows arranged in a two-dimensional weave structure, a three-dimensional weave structure, or a braided structure. The plurality of reinforcing fiber tows include integrally woven or braided fiber tows having a diameter or a density greater than a respective diameter or density of other woven or braided fiber tows in the two-dimensional weave structure, the three-dimensional weave structure, or the braided structure. The integrally woven or braided fiber tows are located in an area of the preform that is bent to form an angled corner to thereby provide strength to a casing structure comprising the angled corner.

Abstract: The present disclosure relates to systems and methods for reducing noise in an imaging system. The methods may include determining an imaging sequence for imaging a subject. When imaging the subject based at least on the imaging sequence, the imaging system may generate a first noise. The methods may further include obtaining, based on the imaging sequence, noise reduction data from a database. And the method may also include causing a generation device to produce a second noise based on the noise reduction data. The second noise may be configured to interfere with the first noise to reduce the first noise.

Abstract: A preparation method of heat-resistant adhesive of silicon-boron-carbon-zirconium modified aluminum-zirconium phosphate for zirconium oxide ceramics is provided. The high-temperature adhesive can generate various high-temperature resistant phases such as zirconia, aluminum phosphate, zirconium phosphate and aluminum borate in situ of the high-temperature adhesive at high temperatures. As the processing temperature increases, the content of zirconia in the high-temperature adhesive continuously increases, and the composition tends to form a stable composite phase mainly composed of aluminum phosphate and zirconia, which makes the composition of the high-temperature adhesive closer to that of zirconia ceramics.

Abstract: A preparation method for a phosphate-based high-temperature-resistant adhesive self-reinforced by in-situ growth and locking of flaky kyanite is provided, including: preparing a modified filler by using bauxite, kaolin, boric acid and boric oxide, and taking a reaction solution of diluted phosphoric acid and aluminum hydroxide powder as latex liquid, and mixing the modified filler, the latex liquid, and silicon powder to prepare the adhesive. After being treated at 700° C., kyanite grows within the adhesive. As the treatment temperature increases, the size and content of the kyanite are further increased, thereby forming a locking and reinforcing structure. After being treated at 1100° C., the bonding strength of the adhesive reaches up to about 50 MPa, and the adhesive illustrates excellent high-temperature-resistant bonding strength.

Abstract: A preparation method for a phosphate-based high-temperature-resistant adhesive self-reinforced by in-situ growth and locking of flaky kyanite is provided, including: preparing a modified filler by using bauxite, kaolin, boric acid and boric oxide, and taking a reaction solution of diluted phosphoric acid and aluminum hydroxide powder as latex liquid, and mixing the modified filler, the latex liquid, and silicon powder to prepare the adhesive. After being treated at 700° C., kyanite grows within the adhesive. As the treatment temperature increases, the size and content of the kyanite are further increased, thereby forming a locking and reinforcing structure. After being treated at 1100° C., the bonding strength of the adhesive reaches up to about 50 MPa, and the adhesive illustrates excellent high-temperature-resistant bonding strength.

Abstract: The present disclosure relates to a method for scanning a patient in an imaging system. The imaging system may include one or more cameras directed at the patient. The method may include obtaining a position of each of the camera(s) relative to the imaging system. The method may also include obtain image data of the patient captured by the camera(s), wherein the image data may correspond to a first view with respect to the patient. The method may further include generating projection image data of the patient based on the image data and the position of each of the camera(s) relative to the imaging system, wherein the projection image data may correspond to a second view with respect to the patient different from the first view. The method may further include generating control information for scanning the patient based on the projection image data of the patient.

Abstract: The present disclosure relates to systems and methods for scanning a patient in an imaging system. The imaging system may include at least one camera directed at the patient. The systems and methods may obtain a plurality of images of the patient that are captured by the at least one camera. Each of the plurality of images may correspond to one of a series of time points. The systems and methods may also determine a motion of the patient over the series of time points based on the plurality of images of the patient. The systems and methods may further determine whether the patient is ready for scan based on the motion of the patient, and generate control information of the imaging system for scanning the patient in response to determining that the patient is ready for scan.

Abstract: A virtual display apparatus includes: a flexible display component layer having a light exit surface and a non-light exit surface opposite to the light exit surface; a lens layer disposed at the light exit surface of the flexible display component layer, and configured to converge light; a curvature adjustment layer disposed on the non-light exit surface of the flexible display component layer. The lens layer has a first surface facing the flexible display component layer, and the first surface of the lens layer and the light exit surface of the flexible display component layer have a gap therebetween. The curvature adjustment layer is configured to deform in response to at least one deformation signal, so as to adjust distances between the first surface of the lens layer and different positions of the light exit surface of the flexible display component layer along a thickness direction of the lens layer.

Abstract: A display device and a driving method thereof, a display system and a display method thereof are provided, including a display panel, which includes a plurality of pixel units; a first optical film sheet provided on the plurality of pixel units. At least one of the pixel units includes a sub-pixel unit of a first color, and the sub-pixel unit of the first color includes at least a display sub-pixel unit of the first color and a disturbing sub-pixel unit of the first color. The first optical film sheet includes a first sub-optical-film unit to allow transmission of light emitted by the display sub-pixel-unit of the first color and a second sub-optical-film unit to allow transmission of light emitted by the disturbing sub-pixel unit of the first color, and polarization states of lights emitted from the first sub-optical film unit and the second sub-optical film unit differ from each other.

Abstract: The present disclosure provides a display apparatus. The display apparatus may include a display panel including a frame area and a display area; a display component configured to display a content including a target portion and a background portion on the display area; an image acquisition device configured to acquire an image of the display panel, wherein the image includes a representation of at least one portion of the frame area and at least one portion of the display area; and a control device configured to control the display component to adjust the background portion of the content displayed on the display area according to the image of the display panel.

Abstract: The present disclosure relates to a positioning system suitable for use in an imaging system. The positioning system may include one or more cameras configured to capture images or videos of an imaging object and surrounding environment thereof for ROI targeting or patient position recognition. The positioning system may also include one or more position probes and sources configured to determine an instant location of an imaging object or an ROI thereof in a non-contact manner.

Abstract: The present application provides a display substrate, a display panel, a display device and a manufacturing method thereof. The display substrate comprising: a base substrate and a black matrix layer, a color resistance layer and an electrostatic transmission layer arranged on the base substrate, wherein the base substrate comprises a first surface and a second surface opposing to each other, the black matrix layer and the color resistance layer are arranged on the first surface of the base substrate and arranged on the same layer, and the electrostatic transmission layer for leading out static electricity generated by the base substrate is arranged on the second surface of the base substrate, and wherein an orthographic projection of the electrostatic transmission layer on the base substrate does not overlap with an orthographic projection of the color resistance layer on the base substrate.