Abstract: A method for recognizing arteries and veins on a fundus image includes: executing a pre-process operation on the fundus image, so as to obtain a pre-processed fundus image; generating a fundus spectral reflection dataset associated with pixels of the pre-processed fundus image, based on the pre-processed fundus image, and a spectral transformation matrix; obtaining a plurality of principle component scores associated with the pixels of the pre-processed fundus image, respectively; and determining, for each of the pixels of the pre-processed fundus image that has been determined as a part of a blood vessel, whether the pixel belongs to a part of an artery or a part of a vein.

Abstract: A connector lock structure includes an insulating body, a plurality of terminals, a shell, a locking assembly, a sliding board, a pressing element and an unlocking tool. The insulating body is molded around the plurality of the terminals. The shell surrounds the insulating body. The locking assembly includes at least one lacking groove, and at least one elastic arm formed in the at least one lacking groove. The at least one elastic arm has a hook structure. The hook structure is cooperated with a blocking groove of a docking connector. The pressing element is mounted in the insulating body. The sliding board is slidably mounted under the pressing element. One end of the pressing element has a locking portion. The locking portion has a keyhole. The unlocking tool is inserted in the keyhole.

Abstract: An electrical connector includes an insulating body, a plurality of conductive terminals, a plurality of grounding terminals and two shielding elements. The plurality of the conductive terminals are mounted in the insulating body. The plurality of the grounding terminals are mounted in the insulating body. The plurality of the grounding terminals are located adjacent to two outer sides of the plurality of the conductive terminals. The two shielding elements are disposed at a front end of an upper surface and a front end of a lower surface of the insulating body. Each shielding element has a base frame. Two sides of a rear edge of the base frame are connected with two contact portions. The contact portions of the two shielding elements contact with the plurality of the grounding terminals.

Abstract: The present invention provides a metal-nanoparticle-free surface-enhanced Raman scattering substrate, which comprises: an anodic aluminum oxide substrate with three-dimensional cavities, and a metal nano-film on the anodic aluminum oxide substrate. The surface-enhanced Raman scattering substrate of the present invention does not need to use metal nanoparticles, but instead uses a structure of metal nanofilm to generate a surface plasmonic resonance. Therefore, compared with the traditional surface-enhanced Raman scattering substrate with an addition of metal nanoparticles, the surface-enhanced Raman scattering substrate of the present invention has better uniformity, stability and reproducibility. The present invention utilizes an anodic aluminum oxide substrate with three-dimensional cavities, so that the surface-enhanced Raman scattering substrate has high sensitivity, high stability, and high reproducibility.

Abstract: The present invention provides a food detection system including: an extraction equipment, a liquid to be identified, a laser light source, a Raman spectrometer, and a metal-nanoparticle-free surface-enhanced Raman scattering substrate. Without an addition of metal nanoparticles, the surface-enhanced Raman scattering substrate of the present invention has better stability and reproducibility compared to those traditional surface-enhanced Raman scattering substrate with metal nano particles. The present invention utilizes an anodic aluminum oxide substrate with two-dimensional and three-dimensional cavities, so that the surface-enhanced Raman scattering substrate has high sensitivity, high stability, and high reproducibility, and may therefore shorten the detection time and production cost of food detection. The invention also provides a food detection method using the food detection system, which is cheap, fast, stable and reliable.

Abstract: Provided are implementation method and system for road traffic reservation passage, and electronic device.

Abstract: A multiple-reference-embedded comparator (MREC) circuit includes a tail current source circuit; an input transistor pair, coupled to the tail current source circuit, configured to receive differential input voltages and perform a first pre-amplification to generate first differential amplified voltages according to the differential input voltages; and a plurality of embedded reference (ER) branches, each coupled to the input transistor pair, each configured to perform a second pre-amplification to generate second differential amplified voltages according to the first differential amplified voltages, and to perform a discrete-time comparison to generate differential output voltages according to the second differential amplified voltages.

Abstract: An accelerator system includes an off-chip memory, a bus, and an accelerator. The off-chip memory includes a first buffer. The accelerator includes a second buffer, a third buffer, a fourth buffer, an instruction fetching module, a load module, a storage module, a convolution control module, and a computation module. The instruction fetching module fetches instructions from the off-chip memory via the bus. The load module loads input data from the off-chip memory via the bus. The storage module stores the output data to the off-chip memory via the bus. The computation module performs convolution computations based on the input map and multiple kernels allocated by the convolution module. In response to loading the input data or instruction from the off-chip memory, the requested input data or instruction is transferred from the off-chip memory and temporarily stored in the first buffer.

Abstract: Embodiments of the present invention provide a multiple-variable predictive maintenance method for a component of a production tool and a computer program product thereof, in which a multiple-variable time series prediction (TSPMVA) and an information criterion algorithm are adapted to build a best vector autoregression model (VAR), thereby forecasting the complicated future trend of accidental shutdown of the component of the production tool. Therefore, the multiple-variable prediction of the present invention can improve the accuracy of prediction compared with the single-variable prediction.

Abstract: A high-speed connector includes an insulating housing, and at least one terminal assembly disposed in the insulating housing. The at least one terminal assembly includes a base body, a plurality of terminals fastened to the base body, and a metal block. A surface of the base body is recessed inward to form a fastening groove. The plurality of the terminals include a plurality of grounding terminals and differential signal terminals. Each of the plurality of the grounding terminals and the differential signal terminals has a fastening portion. The fastening portions of at least several of the plurality of the grounding terminals and the differential signal terminals are exposed to the fastening groove. The metal block is fastened in the fastening groove. The fastening portions of the grounding terminals which are exposed to the fastening groove are electrically connected with the metal block to form a grounding structure.

Abstract: A non-volatile static random access memory includes: a static random access memory, a reading element and a first embedded non-volatile memory. The static random access memory includes a first inverter, a second inverter and two transistors, an output terminal of the first inverter and the input terminal of the second inverter are electrically connected to each other to serve as a Q node, an input terminal of the first inverter and an output terminal of the second inverter are electrically connected to each other to serve as a QB node, and the two transistors are electrically connected to the Q node and the QB node, respectively. The reading element is electrically connected to the Q node. The first embedded non-volatile memory is electrically connected to the QB node.

Abstract: A shear mode piezoelectric accelerometer includes a ring-shaped piezoelectric element, a central shaft, a mass block, a first electrode, and a second electrode. The ring-shaped piezoelectric element includes an outer ring wall and an inner ring wall. The central shaft is made of conductive material and is fixed through the inner ring wall of the ring-shaped piezoelectric element. The mass block is made of conductive material and includes a fixed element and a weight element. The fixed element has a fixed hole and is fixed to the outer ring wall of the ring-shaped piezoelectric element by fitting the fixed hole. The weight element is located on the fixed element on the opposite side away from the fixed hole. The first electrode is electrically connected to the central shaft. The second electrode is electrically connected to the mass block.

Abstract: The present invention relates to a method for measuring muscle mass, including: a first selection step, wherein a frame selection information is obtained by using a frame to select a fascia region from a provided computed tomography image under the condition that the window width ranges from 300 HU to 500 HU and the window level ranges from 40 HU to 50 HU, wherein the selected range of the fascia region includes a muscle; and a second selection step, wherein a muscle information of the muscle is obtained by calculating a pixel value in the frame-selected fascia region under the condition that the HU value of the CT image ranges from ?29 HU to 150 HU.

Abstract: A hand tool includes a first and a second handles, a rotating locking set, a fastening set, and a spring. The first and second handles include chamfered planes respectively. The rotating locking set includes a rotating block and a locking block. The fastening set includes a stud and a nut. The spring is mounted around the stud and elastically abuts against the rotating block. The first handle or the second handle drives the rotating block to disengage from the locking block when being pulled by an external force. The first handle and the rotating block rotate with respect to the second handle by the stud as the center point. The rotating block and the locking block are locked with each other after rotating a specific angle, so as to position the first handle and the second handle.

Abstract: Provided are a production process for a rotating hub type paper-plastic product, and a device utilizing the production process.

Abstract: An image segmentation method includes the following steps: obtaining a target image; inputting the target image into a machine learning model to obtain an image segmentation parameter value corresponding to the target image; executing an image segmentation algorithm on the target image according to the image segmentation parameter value to obtain an image segmentation result, wherein the image segmentation result is segmenting the target image into object regions; and displaying the image segmentation result. In addition, an electronic device and storage medium using the method are also provided.

Abstract: Disclosed herein is an isolated population of cardiomyocytes differentiated from human induced pluripotent stem cells (hiPSCs), wherein the isolated population of cardiomyocytes comprises genomic deletions in HCN1 and HCN4 genes. According to some embodiments of the present disclosure, the isolated population of cardiomyocytes further comprises genomic deletions in HCN2 and HCN3 genes. Also disclosed herein are methods of producing the isolated population of cardiomyocytes, and methods of treating subjects suffering from cardiac diseases by administering the isolated population of cardiomyocytes to the subjects.

Abstract: Pyrimidine compounds of formula (I) shown herein. Also disclosed are pharmaceutical compositions containing one of the pyrimidine compounds and methods of using the pyrimidine compounds to treat or prevent chemotherapy-induced peripheral neuropathy.