Abstract: The disclosure particularly relates to a bending mechanism and a surgical robotic arm including this mechanism. bending mechanism includes a flexible shell and a plurality of bending modules, arranged serially or in front-to-back connection. The bending modules are housed within the flexible shell. The bending modules include an adjustment drive assembly, a first adjustment shaft, and a second adjustment shaft. The first adjustment shaft and the second adjustment shaft are movably connected through a connecting part, the adjusting drive assembly is connected with the first adjustment shaft and the second adjustment shaft, and the adjusting drive assembly is configured to adjust an angle between the first adjustment shaft and the second adjustment shaft. The bending mechanism and surgical robotic arm aim to solve problems concerning damage caused to the human body.

Abstract: The disclosure particularly relates to a bending mechanism and a surgical robotic arm including this mechanism. bending mechanism includes a flexible shell and a plurality of bending modules, arranged serially or in front-to-back connection. The bending modules are housed within the flexible shell. The bending modules include an adjustment drive assembly, a first adjustment shaft, and a second adjustment shaft. The first adjustment shaft and the second adjustment shaft are movably connected through a connecting part, the adjusting drive assembly is connected with the first adjustment shaft and the second adjustment shaft, and the adjusting drive assembly is configured to adjust an angle between the first adjustment shaft and the second adjustment shaft. The bending mechanism and surgical robotic arm aim to solve problems concerning damage caused to the human body.

Abstract: An optical L-band amplifier device, which may include a pluggable housing, a two-stage fiber amplification optical path with ultra-high absorption fiber. The device may include an IWDM and a fiber coupling that are protected by coating. The device may be housed in a multi-source agreement (MSA) compliant housing.

Abstract: A photonics integrated circuit chip includes first and second optical waveguides formed on a semiconductor substrate. Light input into the first optical waveguide passes through a first optical isolator and a coupler formed on the substrate. The coupler outputs light from the first optical isolator combined with light from an off-substrate pump light source to an off-substrate optical fiber which outputs the combined light into the second optical waveguide for passage through a second optical isolator formed on the substrate. The substrate may also include third and fourth optical waveguides. Light input into the third optical waveguide passes through a third optical isolator and a second coupler formed on the substrate. The second coupler outputs light from the second optical isolator combined with light from the pump light source to an off-substrate second optical fiber which outputs the combined light into the fourth optical waveguide for passage through a fourth optical isolator formed on the substrate.

Abstract: A storage medium, and a method and system for simulating photography in a virtual reality scene. The method comprises: firstly, in a virtual reality scene, adjusting composition parameters of a current viewport to obtain initial image data; then, adjusting camera parameters of the initial image data to obtain modified image data; and finally carrying out anti-distortion processing on the modified image data to output a target image. The demands of users for personalizing a 360-degree panoramic photo and outputting satisfying target images are satisfied. The method is not only simple to be operated, but also conducive to the further promotion and application of virtual reality technology.

Abstract: A storage medium, and a method and system for simulating photography in a virtual reality scene. The method comprises: firstly, in a virtual reality scene, adjusting composition parameters of a current viewport to obtain initial image data; then, adjusting camera parameters of the initial image data to obtain modified image data; and finally carrying out anti-distortion processing on the modified image data to output a target image. The demands of users for personalizing a 360-degree panoramic photo and outputting satisfying target images are satisfied. The method is not only simple to be operated, but also conducive to the further promotion and application of virtual reality technology.

Abstract: A coronary stent is provided with asymmetric drug releasing controlled coating used in interventional therapy of coronary disease, containing a bare stent and a coating consisting of drug and carrier, the coating is coated onto the outer wall surface of the bare stent, and is multi-layered. The drug concentration in the coating increases in sequence from the outer layer to the inner layer. The drugs used in different layers of the coating may be identical or different, and particularly may be one or more selected from taxol, rapamycin, heparin, docetaxel and a combination thereof. The carrier may be a random (lactide-glycolide) copolymer having a molecular weight of 50,000-200,000. The drug-coated stent of the present invention employs highly effective drugs, enabling a thinnest coating and reducing the vascular irritation. The drug release is regulated by altering the coating manner so as to satisfy the clinical requirement for controlled drug release.

Abstract: A coronary stent is provided with asymmetric drug releasing controlled coating used in interventional therapy of coronary disease, containing a bare stent and a coating consisting of drug and carrier, the coating is coated onto the outer wall surface of the bare stent, and is multi-layered. The drug concentration in the coating increases in sequence from the outer layer to the inner layer. The drugs used in different layers of the coating may be identical or different, and particularly may be one or more selected from taxol, rapamycin, heparin, docetaxel and a combination thereof. The carrier may be a random (lactide-glycolide) copolymer having a molecular weight of 50,000-200,000. The drug-coated stent of the present invention employs highly effective drugs, enabling a thinnest coating and reducing the vascular irritation. The drug release is regulated by altering the coating manner so as to satisfy the clinical requirement for controlled drug release.