Abstract: Methods and structures of a three-dimensional memory device are disclosed. In an example, the disclosed method comprises forming a plurality of dielectric stacks stacked on one another over a substrate to create a multiple-stack staircase structure. Each one of the plurality of dielectric stacks comprises a plurality of dielectric pairs arranged along a direction perpendicular to a top surface of the substrate. The method further comprises forming a filling structure that surrounds the multiple-stack staircase structure, forming a semiconductor channel extending through the multiple-staircase structure, wherein the semiconductor channel comprises unaligned sidewall surfaces, and forming a supporting pillar extending through at least one of the multiple-staircase structure and the filling structure, wherein the supporting pillar comprises aligned sidewall surfaces.

Abstract: This application describes a medical image classification method, a model training method, and a server. The medical image classification method includes: obtaining, by a device, a medical image data set. The device includes a memory storing instructions and a processor in communication with the memory. The method includes performing, by the device, quality analysis on the medical image data set, to extract feature information of a medical image in the medical image data set; and classifying, by the device, the medical image data set based on the feature information and by using a pre-trained deep learning network for performing anomaly detection and classification, to obtain a classification result.

Abstract: Embodiments of a channel hole plug structure of 3D memory devices and fabricating methods thereof are disclosed. The memory device includes an alternating layer stack disposed on a substrate, an insulating layer disposed on the alternating dielectric stack, a channel hole extending vertically through the alternating dielectric stack and the insulating layer, a channel structure including a channel layer in the channel hole, and a channel hole plug in the insulating layer and above the channel structure. The channel hole plug is electrically connected with the channel layer. A projection of the channel hole plug in a lateral plane covers a projection of the channel hole in the lateral plane.

Abstract: A method for installing a maximum power point tracking (MPPT) controller is provided. The method includes acquiring an occlusion area proportion of a photovoltaic string in a photovoltaic system, optimizing the occlusion area proportion to generate a target occlusion area proportion, determining a target position from the photovoltaic string according to the target occlusion area proportion, and installing the MPPT controller at the target position.

Abstract: An eye pattern measurement apparatus includes: an eye pattern monitoring device, performing first sampling on a data signal by sequentially using scan clock signals having different phases to obtain a plurality of scan data signals; and a data aligning device, connected to the eye pattern monitoring device, receiving the scan data signals outputted by the eye pattern monitoring device, performing phase-shift on the first clock signal to generate a synchronization clock signal, synchronizing the scan data signals with the synchronization clock signal, and outputting the synchronized scan data signals.

Abstract: Disclosed is a LED lamp compatible with electronic ballast. The positive and negative electrodes of LED array are connected with two pins of lamp via four diodes respectively, by this way, regardless of which pin is connected to the positive electrode, the lamp circuit can form a conductive path to power for the LED array, and consumers can install the lamp without distinguishing the positive and negative electrodes, improving the efficiency of LED lamp replacement.

Abstract: Disclosed is a LED lamp compatible with electronic ballast. The positive and negative electrodes of LED array are connected with two pins of lamp via four diodes respectively, by this way, regardless of which pin is connected to the positive electrode, the lamp circuit can form a conductive path to power for the LED array, and consumers can install the lamp without distinguishing the positive and negative electrodes, improving the efficiency of LED lamp replacement.

Abstract: An eye pattern measurement apparatus includes: an eye pattern monitoring device, performing first sampling on a data signal by sequentially using scan clock signals having different phases to obtain a plurality of scan data signals; and a data aligning device, connected to the eye pattern monitoring device, receiving the scan data signals outputted by the eye pattern monitoring device, performing phase-shift on the first clock signal to generate a synchronization clock signal, synchronizing the scan data signals with the synchronization clock signal, and outputting the synchronized scan data signals.

Abstract: A Light Emitting Diode (LED) fluorescent cover comprises the following components by weight: 90-96% of single-component solid silicone rubber, 3-8% of fluorescent powder and 1-2% of vulcanizer; and the preparation method includes the following steps: step 1): using mixed compound of the single-component solid silicone rubber, as well as the fluorescent powder and the vulcanizer as raw material to mix, standing for 2-4 h after mixing with open mill or internal mixer; step 2): controlling temperature, pressure and vulcanization time of vulcanizing machine according to size of the fluorescent cover mold, using the vulcanizing machine to carry out first vulcanization to the raw material that is obtained from the step 1) and placed in the fluorescent cover mold; step 3): with combined action of blower gun, taking the fluorescent cover out slowly; step 4): baking the semi-finished product in a closed space at a temperature of 150-200° C. for 1-2 h.

Abstract: A Light Emitting Diode (LED) fluorescent cover comprises the following components by weight: 90-96% of single-component solid silicone rubber, 3-8% of fluorescent powder and 1-2% of vulcanizer; and the preparation method includes the following steps: step 1): using mixed compound of the single-component solid silicone rubber, as well as the fluorescent powder and the vulcanizer as raw material to mix, standing for 2-4 h after mixing with open mill or internal mixer; step 2): controlling temperature, pressure and vulcanization time of vulcanizing machine according to size of the fluorescent cover mold, using the vulcanizing machine to carry out first vulcanization to the raw material that is obtained from the step 1) and placed in the fluorescent cover mold; step 3): with combined action of blower gun, taking the fluorescent cover out slowly; step 4): baking the semi-finished product in a closed space at a temperature of 150-200° C. for 1-2 h.

Abstract: A Light Emitting Diode (LED) fluorescent cover comprises the following components by weight: 90-96% of single-component solid silicone rubber, 3-8% of fluorescent powder and 1-2% of vulcanizer; and the preparation method includes the following steps: step 1): using mixed compound of the single-component solid silicone rubber, as well as the fluorescent powder and the vulcanizer as raw material to mix, standing for 2-4 h after mixing with open mill or internal mixer; step 2): controlling temperature, pressure and vulcanization time of vulcanizing machine according to size of the fluorescent cover mould, using the vulcanizing machine to carry out first vulcanization to the raw material that is obtained from the step 1) and placed in the fluorescent cover mould; step 3): with combined action of blower gun, taking the fluorescent cover out slowly; step 4): baking the semi-finished product in a closed space at a temperature of 150-200° C. for 1-2 h.

Abstract: The present invention relates to the technical field of LED packaging, in particular to an easily-assembled COB lamp bead, a support for the lamp bead, a method for manufacturing the lamp bead and an easily-assembled LED module using the lamp bead. For the LED lamp bead provided by the present invention, as a first metal welding layer is provided on the bottom surface, it is just required to directly weld the lamp bead in a heat sink during assembling. Due to a power-taking slot formed of a positive plate and a negative plate in a matched manner, it is just required to insert one end of a driving circuit board, having a conductive terminal, into the slot during assembling. Hence, the whole assembling process is very simple, and both the efficiency and quality of assembling are effectively improved.

Abstract: A Light Emitting Diode (LED) fluorescent cover comprises the following components by weight: 90-96% of single-component solid silicone rubber, 3-8% of fluorescent powder and 1-2% of vulcanizer; and the preparation method includes the following steps: step 1): using mixed compound of the single-component solid silicone rubber, as well as the fluorescent powder and the vulcanizer as raw material to mix, standing for 2-4 h after mixing with open mill or internal mixer; step 2): controlling temperature, pressure and vulcanization time of vulcanizing machine according to size of the fluorescent cover mould, using the vulcanizing machine to carry out first vulcanization to the raw material that is obtained from the step 1) and placed in the fluorescent cover mould; step 3): with combined action of blower gun, taking the fluorescent cover out slowly; step 4): baking the semi-finished product in a closed space at a temperature of 150-200° C. for 1-2 h.

Abstract: An electric bicycle includes a light-weight crankshaft supporting unit. The crankshaft supporting unit has a U-shape and compactly supports both a battery and a pedal crankshaft. An electric motor is mounted remotely from the pedal crankshaft. A support shaft for a kick stand, a coupling shaft of a rear arm, and a mounting piece all extend between the sides of the crankshaft supporting member and add structural rigidity to the light-weight unit. The crankshaft supporting unit is compact and allows the battery to be placed lower so as to lower the bicycle's center of gravity.