Abstract: The present disclosure relates generally to gas chromatography systems with ultra-high detection capability.

Abstract: This disclosure provides Virtual Reality (VR) glasses. The VR glasses include: a bottom plate, two communicating light-transmitting holes being provided on the bottom plate symmetrically; a first sealing part and a second sealing part, which are both made of a silicone material and are fixed onto the bottom plate, and the first sealing part and the second sealing part are in one-to-one correspondence with positions of the two light-transmitting holes; and a first lens barrel and a second lens barrel, the first lens barrel communicates with one of the two light-transmitting holes through the first sealing part, and the second lens barrel communicates with the other one of the two light-transmitting holes through the second sealing part, and the first lens barrel and the second lens barrel are configured to be able to move toward each other.

Abstract: This disclosure provides virtual reality (VR) glasses. The VR glasses include: a bottom plate, two communicating light-transmitting holes being provided on the bottom plate symmetrically; a first sealing part and a second sealing part, which are both made of a silica gel material and are fixed onto the bottom plate, and the first sealing part and the second sealing part are in one-to-one correspondence with positions of the two light-transmitting holes; and a first lens barrel and a second lens barrel, the first lens barrel communicates with one of the two light-transmitting holes through the first sealing part, and the second lens barrel communicates with the other one of the two light-transmitting holes through the second sealing part, and the first lens barrel and the second lens barrel are configured to be able to move toward each other.

Abstract: Systems and methods for controlling traffic flow on road(s). The methods comprise: obtaining, by a processor, traffic related information comprising a total number of vehicles that caused an activation of a sensor of a first detector located at a first intersection of a plurality of intersections; generating, by the processor, a predicted traffic volume at one or more downstream second intersections based on the traffic related information; generating, by the processor, a traffic light timing for at least two next cycles based on the predicted traffic volume; and controlling, by the processor, a traffic light of the one or more downstream second intersections in accordance with the traffic light timing to reduce a probability or likelihood that the vehicle will stop at a red light thereat. .

Abstract: Systems and methods for controlling the speed of a vehicle traveling over a terrain. The methods comprise: predicting, by a mobile device (MD), a queue length defined by the number of vehicles in a queue at a downstream intersection based on a traffic volume and vehicle speeds that were detected during a past period of time by a detector located at or near an upstream intersection; sensing, by MD's sensor(s), the vehicle's velocity and location; computing a distance to a downstream intersection from the vehicle's location; generating a desired speed for the vehicle based on the traffic volume and vehicle speeds, signal phase and timing data for at least the next two cycles, the predicted queue length at the downstream intersection, the vehicle's velocity and location, the distance to the downstream intersection, and a current time; and using the desired speed to facilitate control of the speed of the vehicle.

Abstract: A power device includes a substrate, a drift layer disposed on the substrate, a terminal region and an active region disposed in the drift layer, an electrode layer disposed on the active region, a Schottky contact layer disposed between the electrode layer and the active region, a passivation layer including a first portion that is disposed on the drift layer, and a second portion that is connected to the first portion and that has an end surface distal from the drift layer. The end surface of the second portion is flush with a top surface of the electrode layer distal from the drift layer. Another two power devices are also provided.

Abstract: A heating assembly and an aerosol generation device are provided. The heating assembly includes a heating body. Several heat generation portions serve as a sidewall of the heating body. The several heat generation portions are connected end to end in sequence and at least partially spaced apart from each other. The several heat generation portions that are spaced apart from each other are configured to guide a current to flow along a preset path. The several heat generation portions cooperatively define an accommodating cavity for accommodating an inhalable material and for air circulation.

Abstract: Systems and methods for controlling traffic flow along an arterial. The systems comprise a data processing apparatus configured to: monitor traffic light control signals (TLCSs) used to control traffic lights at intersection(s) and traffic delays occurring at intersection(s) at a time when the traffic lights are being controlled by TLCSs; access a hybrid model comprising a first linear term corresponding to an instance of traffic delays, a second linear term corresponding to a concurrent instance of TLCSs, and a nonlinear function defining a nonlinear relationship between the instance of the traffic delays and a previous instance of TLCSs; use the hybrid module to predict traffic delays at intersection(s) based on the traffic control signals and the traffic delays; determine, based on TLCSs and the traffic delays, traffic control signals that cause the predicted traffic delays to decrease; and cause the traffic lights to be controlled using the traffic control signals.

Abstract: An optical satellite remote sensing transfer calibration method based on near-space aerostat, including: performing a temporal-spatial matching between first observation image data of a target region collected by a benchmark radiometric payload and second observation image data of the target region collected by a satellite-borne payload, to obtain a plurality of matchups of observation image data (S1); obtaining an average radiance of the benchmark radiometric payload from a plurality of first observation image data (S2); obtaining an average DN captured by the satellite payload in the target region from a plurality of second observation image data (S3); obtaining a matching radiance for an observation band of the benchmark radiometric payload corresponding to the satellite payload based on the average radiance of the benchmark radiometric payload (S4); and obtaining a calibration coefficient of the satellite payload based on the matching radiance and the average DN (S5).

Abstract: An optical satellite remote sensing transfer calibration method based on near-space aerostat, including: performing a temporal-spatial matching between first observation image data of a target region collected by a benchmark radiometric payload and second observation image data of the target region collected by a satellite-borne payload, to obtain a plurality of matchups of observation image data (S1); obtaining an average radiance of the benchmark radiometric payload from a plurality of first observation image data (S2); obtaining an average DN captured by the satellite payload in the target region from a plurality of second observation image data (S3); obtaining a matching radiance for an observation band of the benchmark radiometric payload corresponding to the satellite payload based on the average radiance of the benchmark radiometric payload (S4); and obtaining a calibration coefficient of the satellite payload based on the matching radiance and the average DN (S5).

Abstract: The present invention discloses a gas chromatography (GC) system for separating analytes from a matrix, comprising: a GC system entrance; a first column fluidically connected to the GC system entrance through a first valve; a second column fluidically connected to the first column through a second valve; a third column fluidically connected to the first column through the second valve; a fourth column fluidically connected to a third column through a third valve; and a GC system exit fluidically connected to both the fourth column and the second column through a fourth valve. And the present invention also discloses a method of separating various analytes, including analyte portions comprising one or more of Ar, O2, N2, CH4 and CO2, from a gas matrix and from CO2 by using the GC system.

Abstract: This disclosure provides virtual reality (VR) glasses. The VR glasses include: a bottom plate, two communicating light-transmitting holes being provided on the bottom plate symmetrically; a first sealing part and a second sealing part, which are both made of a silica gel material and are fixed onto the bottom plate, and the first sealing part and the second sealing part are in one-to-one correspondence with positions of the two light-transmitting holes; and a first lens barrel and a second lens barrel, the first lens barrel communicates with one of the two light-transmitting holes through the first sealing part, and the second lens barrel communicates with the other one of the two light-transmitting holes through the second sealing part, and the first lens barrel and the second lens barrel are configured to be able to move toward each other.

Abstract: The disclosure provides methods for the direct optical visualization of graphene and its nanoscale defects on transparent substrates.

Abstract: Electropolymerized polymer or copolymer films on a conducting substrate (e.g., graphene) and methods of making such films. The films may be part of multilayer structures. The films can be formed by anodic or cathodic electropolymerization of monomers. The films and structures (e.g., multilayer structures) can be used in devices such as, for example, electrochromic devices, electrical-energy storage devices, photo-voltaic devices, field-effect transistor devices, electrical devices, electronic devices, energy-generation devices, and microfluidic devices.

Abstract: The disclosure provides methods for the direct optical visualization of graphene and its nanoscale defects on transparent substrates.

Abstract: Systems and methods for spectrally resolved super-resolution microscopy (SRM) and ultrahigh-throughput single-molecule spectroscopy to synchronously and rapidly measure the fluorescence spectra and positions of millions of single molecules in dense samples.

Abstract: Systems and methods for spectrally resolved super-resolution microscopy (SRM) and ultrahigh-throughput single-molecule spectroscopy to synchronously and rapidly measure the fluorescence spectra and positions of millions of single molecules in dense samples.

Abstract: A wireless BCI input system for mobile intelligent devices is described. The system may include an SSVEP keyboard for stimulating SSVEP signals and an EEG headband for acquiring EEG signals. The SSVEP keyboard may include sixteen virtual buttons and a mask that can be replaced to change functions of the virtual buttons. The EEG headband may include an EEG acquisition module, an EEG analysis module, and a Bluetooth communication module, which are used for acquiring EEG signals, determining the user's input intentions, and sending characters or controlling commands to a matched mobile intelligent device via Bluetooth connection.

Abstract: A wireless BCI input system for mobile intelligent devices is described. The system may include an SSVEP keyboard for stimulating SSVEP signals and an EEG headband for acquiring EEG signals. The SSVEP keyboard may include sixteen virtual buttons and a mask that can be replaced to change functions of the virtual buttons. The EEG headband may include an EEG acquisition module, an EEG analysis module, and a Bluetooth communication module, which are used for acquiring EEG signals, determining the user's input intentions, and sending characters or controlling commands to a matched mobile intelligent device via Bluetooth connection.

Abstract: Electropolymerized polymer or copolymer films on a conducting substrate (e.g., graphene) and methods of making such films. The films may be part of multilayer structures. The films can be formed by anodic or cathodic electropolymerization of monomers. The films and structures (e.g., multilayer structures) can be used in devices such as, for example, electrochromic devices, electrical-energy storage devices, photo-voltaic devices, field-effect transistor devices, electrical devices, electronic devices, energy-generation devices, and microfluidic devices.