Abstract: A selective etching solution for a 3D NAND structure sheet is provided. The etching solution includes phosphoric acid, a silane additive 1, a silane additive 2, and water. The etching solution provided by the present invention has etching selectivity on a silicon oxide film and a silicon nitride film, can selectively remove the silicon nitride film and prolong the life of the etching solution, and can adapt to etching of a laminated structure.

Abstract: A battery assembly to mount a battery core includes: a holder for mounting the battery core; a battery protection tube; and a bottom cover located on one end of the battery protection tube. The battery protection tube is sleeved on the holder and covers the battery core. A first buckle part is arranged on the bottom cover, and a second buckle part configured to the first buckle part is arranged on the holder. The bottom cover is rotated relative to the holder. The first buckle part is in a buckle connection with the second buckle part, or the first buckle part is separated from the second buckle part.

Abstract: A computer-implemented method for transitioning between asynchronous and synchronous interactions may include (i) detecting that a user is initiating a session within a digital media room via a computing device, (ii) enabling the user to interact with at least one digital media object in the digital media room in an asynchronous fashion, (iii) detecting that an additional user is initiating a new session within the digital media room, (iv) in response to detecting that the additional user is initiating the new session within the digital media room, creating a shared session within the digital media room for the user and the additional user, and (v) enabling the user and the additional user to interact with the at least one digital media object in the digital media room in a synchronous fashion via the shared session. Various other methods, systems, and computer-readable media are also disclosed.

Abstract: A method for fabricating a protonic ceramic energy device includes: coating an electrolyte layer on an anode layer; and densifying the electrolyte layer by a rapid laser reactive sintering (RLRS) process on the electrolyte layer and/or the anode layer to form a half-cell comprising a dense electrolyte and a porous anode.

Abstract: A short contact reaction system for preparing ethylene and propylene from methanol includes an MTO short contact reactor, a riser reactor, a dense bed, and a stripper. The MTO short contact reactor has the following components coaxially distributed from inside to outside: a methanol feeding pipeline, a filter pipe wall, a product gas channel, and a catalyst distributor arranged at the top of the reactor, and a seal pipe arranged at the bottom of the reactor. The seal pipe is located in the stripper. The diameter at the top of the product gas channel is smaller than the diameter at the bottom of the product gas channel. Methanol is in crossflow contact with the descending coked catalyst II in the MTO short contact reactor.

Abstract: Teachings of the present disclosure include software security flaw prediction methods. An example method includes: scanning a segment of software source code to obtain a quantity of each error-prone mode present; determining a probability of violating each secure programming rule, based on the number of occurrences of each mode; predicting a probability of each security flaw based on the probability of the software source code violating each secure programming rule; acquiring each item of alert information obtained by analysis using a static code scanning tool, wherein an item of alert information indicates that a security flaw might occur in the software source code; and determining a probability of each item of alert information indicating a true security flaw, according to the probability of each security flaw potentially present in the software source code.

Abstract: A detecting system using a spectrum measurement device and detecting an object is provided. The system includes: a sampling module and spectrum measurement devices assembled to the sampling module. The sampling module provides an illumination beam to the object and collects measurement beams reflected by the object to the spectrum measurement devices. The illumination beam has an illumination light waveband. The measurement beams have the illumination light waveband. The spectrum measurement devices include first and second spectrum measurement devices. The first spectrum measurement device includes a digital micromirror device. The measurement beams include first and second measurement beams transmitted to the first and second spectrum measurement devices respectively.

Abstract: A method for fabricating a protonic ceramic energy device includes: coating an electrolyte layer on an anode layer; and densifying the electrolyte layer by a rapid laser reactive sintering (RLRS) process on the electrolyte layer and/or the anode layer to form a half-cell comprising a dense electrolyte and a porous anode.

Abstract: A fluidized bed reactor, a device for preparing low-carbon olefin, and a method for preparing low-carbon olefin are provided. The reaction zone of the fluidized bed reactor is sequentially, from bottom to top, provided with a raw material first distributor, a raw material second distributor and a catalyst distributor; the catalyst distributor is connected with the catalyst second feeding inlet; a dense-phase zone is formed between the raw material first distributor and the raw material second distributor, and the area where the catalyst distributor is located is formed as a catalyst distribution zone connected with the dense-phase zone; and at least one catalyst first feeding inlet(s) is provided on the side wall of reactor of the dense-phase zone. The distribution of the catalyst and the full contact of the catalyst with the raw materials can be achieved using the fluidized bed reactor and the device.

Abstract: A drug scanning and identification system including a spectrometer, a drug holder, a mobile device and a drug identification model is provided. The spectrometer includes a light source, a diffraction grating, a light-absorption element, a wavelength selector, and a single-point photodetector. The drug holder includes a transparent area and a light-absorption area. The drug is disposed on the transparent area. The light-absorption area surrounds the transparent area. The mobile device is adapted to send a control command to trigger the spectrometer scanning the drug so as to obtain spectrum data of the drug. The spectrometer is adapted to transmit the spectrum data of the drug to the drug identification model. The drug identification model is adapted to identify the spectrum data of the drug such that the drug identification model generates an identification result. The identification result is displayed by the mobile device.

Abstract: A direct plasmonic photovoltaic cell (1) and a method of manufacturing such a photovoltaic cell is proposed. The photovoltaic cell (1) comprises: a first conductive substrate (2): a layer of a p-type semiconductor as a Hole Transporting Layer HTL (3): a layer of metal plasmonic nanoparticles (41. 42): a layer of an n-type semiconductor as an Electron Transporting Layer ETL (5); and a second conductive substrate (6). The HTL (3) is in direct physical contact with the first conductive substrate (2) and the second conductive substrate (6) is in direct physical contact with the ETL (5).

Abstract: A charge generating assembly for a direct plasmonic photovoltaic cell with increased overall efficiency, comprising a layer of an n-type semiconductor as an electron transporting layer (1) (ETL), a layer of metal plasmonic nanoparticles (2), an insulating layer (4) between the n-type semiconductor and the layer of metal plasmonic nanoparticles and a layer of a p-type semiconductor as a hole transporting layer (3) (HTL).

Abstract: The disclosed techniques generally relate to devices and methods for generating cropped images in which one or more features of interest are preserved or emphasized. In one implementation, such features of interest may include facial features. In accordance with certain implementations, location and extent of such features may be identified and used in conjunction with information regarding display characteristics so as to generate cropped images preserving or emphasizing the feature of interest when displayed on a given device.

Abstract: A method, an apparatus, and a system are for evaluating code design quality. The method for evaluating code design quality includes: determining, based upon a result from static scanning of code, a probability of the presence of an error-prone pattern in the code; inputting the probability into an artificial neural network, and determining, based upon the artificial neural network, a prediction result for whether the code violates a preset design rule and for a quantized degree to which the design rule is violated; and based upon the prediction result, evaluating the design quality of the code. The present method is able to improve the accuracy of code design quality evaluation. By detecting a presence of an error-prone pattern in the code, whether or not a key design rule has been violated in a design process and a quantized degree to which the key design rule is violated are predicted.

Abstract: An SGT MOSFET device and a manufacturing method of contact holes of the SGT MOSFET device relate to a field of power semiconductor device manufacturing. The manufacturing method includes steps of preparing a gate trench, source trenches, a shielding gate trench, and a pre-embedded ESD trench, preparing a cell structure, preparing an ESD region, a body region, and a source region by ion implantation and preparing a gate contact hole, a source contact hole, a shield gate contact hole, and ESD contact holes. By pre-embedding an ESD structure, depth differences between the gate contact hole, the source contact hole, the shielding gate contact hole, and the ESD contact holes are reduced, and the contact holes are prepared by only one photolithography process. The manufacturing method reduces one photolithography process and one process of growing ESD polysilicon, saves cost, and reduces difficulty of the manufacturing process.

Abstract: An electroprinting system having a voltage generator that produces a signal, a drop-on-demand (DOD) droplet generator actuated by the signal of the voltage generator, the drop generator having a wire for submersion into a viscous fluid, a power supply connected to the wire for supplying current to the DOD droplet generator, and a grounded collector for collection of the droplet generated by the DOD droplet generator. The drop-on-demand (DOD) droplet generator has a wire for plunging or threading through a meniscus of a viscous fluid, and an applied electrical potential to form a droplet from the viscous fluid. A method of electroprinting of a viscous fluid is also provided.