Abstract: A method of making a magnetically-drivable microrobot that is suitable for carrying and delivering cells includes photo-curing a photo-curable material composition to form a body of the magnetically-drivable microrobot. The photo-curable material composition includes a degradable component, a structural component, a magnetic component, and a photo-curing facilitation composition including a photoinitiator component and a photosensitizer component.

Abstract: The present invention relates to a method for manufacturing hydrophobized nanocellulose comprising the steps of: a) providing a cellulose-containing material wherein the cellulose-containing material contains less than 20 wt. % water, b) contacting the cellulose-containing material with oxalic acid dihydrate, and heating above the melting point of the oxalic acid dihydrate, to obtain cellulose oxalates, c) washing the mixture, d) preparing a suspension comprising the material from step c) and e) recovering hydrophobized nanocellulose from the suspension. The present invention relates also to a method of manufacturing hydrophobized nanocellulose intermediate which comprises the above described steps a)-c). The methods disclosed in the present invention are quick, inexpensive, simple, and direct. Pulp can be used as raw material.

Abstract: The present invention relates to a method for manufacturing nanocellulose comprising the steps of: a) providing a cellulose-containing material wherein the cellulose-containing material contains less than 20 wt. % water, b) contacting the cellulose-containing material with oxalic acid dihydrate, and heating above the melting point of the oxalic acid dihydrate, to obtain cellulose oxalates, c) washing the mixture, d) preparing a suspension comprising the washed material from step c) and e) recovering nanocellulose from the suspension. The present invention relates also to a method of manufacturing nanocellulose intermediate which comprises the above described steps a)-c). The methods disclosed in the present invention are quick, simple, and direct. Pulp can be used as raw material. A considerable amount of free carboxyl groups are introduced. A high yield can be obtained. The methods are inexpensive.

Abstract: The present invention relates to a method for manufacturing nanocellulose comprising the steps of: a) providing a cellulose-containing material wherein the cellulose-containing material contains less than 20 wt. % water, b) contacting the cellulose-containing material with oxalic acid dihydrate, and heating above the melting point of the oxalic acid dihydrate, to obtain cellulose oxalates, c) washing the mixture, d) preparing a suspension comprising the washed material from step c) and e) recovering nanocellulose from the suspension. The present invention relates also to a method of manufacturing nanocellulose intermediate which comprises the above described steps a)-c). The methods disclosed in the present invention are quick, simple, and direct. Pulp can be used as raw material. A considerable amount of free carboxyl groups are introduced. A high yield can be obtained. The methods are inexpensive.

Abstract: An electromagnetic device for manipulating a magnetic-responsive robotic device, and an electromagnetic apparatus incorporate one or more such electromagnetic device. The electromagnetic device includes a magnetic core 200 having a first portion and a second portion extends from one side of the first portion. The first portion has a first cross section and defining a first central axis. The second portion has a second cross section smaller than the first cross section, and defines a second central axis parallel to the first central axis. A first electromagnetic coil is arranged around the first cylindrical portion. A second electromagnetic coil is arranged around the second cylindrical portion.

Abstract: The present invention relates to a method for manufacturing hydrophobized nanocellulose comprising the steps of: a) providing a cellulose-containing material wherein the cellulose-containing material contains less than 20 wt. % water, b) contacting the cellulose-containing material with oxalic acid dihydrate, and heating above the melting point of the oxalic acid dihydrate, to obtain cellulose oxalates, c) washing the mixture, d) preparing a suspension comprising the material from step c) and e) recovering hydrophobized nanocellulose from the suspension. The present invention relates also to a method of manufacturing hydrophobized nanocellulose intermediate which comprises the above described steps a)-c). The methods disclosed in the present invention are quick, inexpensive, simple, and direct. Pulp can be used as raw material.

Abstract: The present invention relates to a method for manufacturing nanocellulose comprising the steps of: a) providing a cellulose-containing material wherein the cellulose-containing material contains less than 20 wt. % water, b) contacting the cellulose-containing material with oxalic acid dihydrate, and heating above the melting point of the oxalic acid dihydrate, to obtain cellulose oxalates, c) washing the mixture, d) preparing a suspension comprising the washed material from step c) and e) recovering nanocellulose from the suspension. The present invention relates also to a method of manufacturing nanocellulose intermediate which comprises the above described steps a)-c). The methods disclosed in the present invention are quick, simple, and direct. Pulp can be used as raw material. A considerable amount of free carboxyl groups are introduced. A high yield can be obtained. The methods are inexpensive.

Abstract: An object tracking method is provided. The method includes obtaining current position coordinates of a tracked object for a first time using a tracking algorithm and initializing a filter acting on a time-varying system based on the obtained current position coordinates. The method further includes updating a system state through the filter acting on the time-varying system when the tracking algorithm outputs new current position coordinates of the tracked object with a spatial delay and comparing speed of the tracked object to a compensation determination threshold. Further, the method includes when the speed of the tracked object is greater than the compensation determination threshold, compensating the new current position coordinates of the tracked object with the spatial delay through the filter acting on the time-varying system, and outputting the compensated current position coordinates.

Abstract: A three-dimensional (3D) display system is provided for displaying a 3D image including a first view image and a second view image to a viewer. The 3D display system includes an arrangement module, a processing module, and a displaying module. The arrangement module is configured to alternatingly arrange display units of the first view image and display units of the second view image on a display panel. The processing module is configured to obtain an information difference of a display unit of the second view image from the display units of the first view image, and re-calculate a pixel value of the display unit of the second view image. The displaying module is configured to display to the viewer the display unit of the second view image with the re-calculated pixel value via a light separation device.

Abstract: The present invention provides a 3D display method, which comprises: obtaining an interference value of a display unit displaying at least one pair of images with parallax under the coverage of a spectroscopic device; adjusting the display unit based on the interference value; and the adjusted display unit displaying the at least one pair of images with parallax. The present invention also provides a 3D display device. Through the technical solution of the present invention, the crosstalk phenomenon during the 3D display process can be relieved to optimize the 3D display result.

Abstract: The present invention provides a 3D display method, which comprises: obtaining an interference value of a display unit displaying at least one pair of images with parallax; adjusting the display unit based on the interference value; and the adjusted display unit displaying the at least one pair of images with parallax. The present invention also provides a 3D display device. Through the technical solution of the present invention, the crosstalk phenomenon during the 3D display process can be relieved to optimize the 3D display result.

Abstract: A method is provided for a 3D virtual training system. The 3D virtual training system includes a 3D display screen and an operating device, and the method includes initializing a virtual medical training session to be displayed on the 3D display screen, where 3D display contents include at least a 3D virtual image of a surgery site. The method also includes obtaining user interaction inputs via the operating device and the 3D display screen, and displaying on the 3D display screen a virtual surgery device and a virtual surgery operation on the surgery site by the virtual surgery device. Further, the method includes determining an operation consequence based on the user interaction inputs and the surgery site, rendering the operation consequence based on the surgery site and effects of the virtual surgery operation, and displaying 3D virtual images of the rendered operation consequence on the 3D display screen.

Abstract: An object tracking method is provided. The method includes obtaining current position coordinates of a tracked object for a first time using a tracking algorithm and initializing a filter acting on a time-varying system based on the obtained current position coordinates. The method further includes updating a system state through the filter acting on the time-varying system when the tracking algorithm outputs new current position coordinates of the tracked object with a spatial delay and comparing speed of the tracked object to a compensation determination threshold. Further, the method includes when the speed of the tracked object is greater than the compensation determination threshold, compensating the new current position coordinates of the tracked object with the spatial delay through the filter acting on the time-varying system, and outputting the compensated current position coordinates.

Abstract: A 3D display system for displaying a 3D image includes a tracking unit, a pixel panel, a grating array, and a control unit. The tracking unit is configured to determine a spatial position of a viewer of the 3D display system. The pixel panel contains alternatingly arranged display units from two or more view images of the 3D image, and the grating array is coupled to the pixel panel to separate light from the view images from the pixel panel. The control unit is configured to adjust certain parameters of the grating array such that a maximum width of horizontal projection of edges of adjacent display units through the grating array is less than or equal to a inner-eye distance, and a minimum width of horizontal projection of two edges of a single display unit through the grating array is greater than or equal to an outer-eye distance.

Abstract: The present invention provides a 3D display method, which comprises: obtaining an interference value of a display unit displaying at least one pair of images with parallax; adjusting the display unit based on the interference value; and the adjusted display unit displaying the at least one pair of images with parallax. The present invention also provides a 3D display device. Through the technical solution of the present invention, the crosstalk phenomenon during the 3D display process can be relieved to optimize the 3D display result.

Abstract: The present invention provides a 3D display method, which comprises: obtaining an interference value of a display unit displaying at least one pair of images with parallax under the coverage of a spectroscopic device; adjusting the display unit based on the interference value; and the adjusted display unit displaying the at least one pair of images with parallax. The present invention also provides a 3D display device. Through the technical solution of the present invention, the crosstalk phenomenon during the 3D display process can be relieved to optimize the 3D display result.

Abstract: A method is provided for a 3D virtual training system. The 3D virtual training system includes a 3D display screen and an operating device, and the method includes initializing a virtual medical training session to be displayed on the 3D display screen, where 3D display contents include at least a 3D virtual image of a surgery site. The method also includes obtaining user interaction inputs via the operating device and the 3D display screen, and displaying on the 3D display screen a virtual surgery device and a virtual surgery operation on the surgery site by the virtual surgery device. Further, the method includes determining an operation consequence based on the user interaction inputs and the surgery site, rendering the operation consequence based on the surgery site and effects of the virtual surgery operation, and displaying 3D virtual images of the rendered operation consequence on the 3D display screen.

Abstract: A 3D display system for displaying a 3D image includes a tracking unit, a pixel panel, a grating array, and a control unit. The tracking unit is configured to determine a spatial position of a viewer of the 3D display system. The pixel panel contains alternatingly arranged display units from two or more view images of the 3D image, and the grating array is coupled to the pixel panel to separate light from the view images from the pixel panel. The control unit is configured to adjust certain parameters of the grating array such that a maximum width of horizontal projection of edges of adjacent display units through the grating array is less than or equal to a inner-eye distance, and a minimum width of horizontal projection of two edges of a single display unit through the grating array is greater than or equal to an outer-eye distance.

Abstract: A three-dimensional (3D) display system is provided for displaying a 3D image including a first view image and a second view image to a viewer. The 3D display system includes an arrangement module, a processing module, and a displaying module. The arrangement module is configured to alternatingly arrange display units of the first view image and display units of the second view image on a display panel. The processing module is configured to obtain an information difference of a display unit of the second view image from the display units of the first view image, and re-calculate a pixel value of the display unit of the second view image. The displaying module is configured to display to the viewer the display unit of the second view image with the re-calculated pixel value via a light separation device.

Abstract: An advertisement image classification system trains a binary classifier to classify images as advertisement images or non-advertisement images and then uses the binary classifier to classify images of web pages as advertisement images or non-advertisement images. During a training phase, the classification system generates training data of feature vectors representing the images and labels indicating whether an image is an advertisement image or a non-advertisement image. The classification system trains a binary classifier to classify images using training data. During a classification phase, the classification system inputs a web page with an image and generates a feature vector for the image. The classification system then applies the trained binary classifier to the feature vector to generate a score indicating whether the image is an advertisement image or a non-advertisement image.