Abstract: This application relates to an insulation state detection method, system, and apparatus as well as a storage medium and a program product. This method is applied to an energy management system. The energy management system is communicatively connected to a plurality of to-be-monitored components and one insulation monitoring module separately. All the to-be-monitored components and the insulation monitoring module are connected to a same direct-current bus in parallel. The method includes: detecting, by the insulation monitoring module in response to switching the insulation monitoring module to an on-state, an insulation state of each to-be-monitored component and an energy storage system sequentially based on a power-up and power-down sequence of the to-be-monitored components. This method simplifies a process of detecting the insulation fault of the energy storage system, thereby reducing complexity of the process of detecting the insulation fault of the energy storage system.

Abstract: A power system includes a first current conversion module and a second current conversion module, obtains, in response to a determination of obtaining electric energy from the power grid for the electric energy module, electric energy from the power grid through the first current conversion module, and release, in response to a determination of releasing electric energy from the electric energy module to the power grid, electric energy to the power grid through the first current conversion module and the second current conversion module.

Abstract: A method and an apparatus for determining an echo, and a storage medium. The implementation solution includes: obtaining an echo estimation result by performing echo estimation on an original audio signal; obtaining an optimization processing result by performing optimization processing on the echo estimation result, the optimization processing includes at least one of amplitude dimension optimization processing, phase dimension optimization processing, or time domain dimension optimization processing; and determining an echo of the original audio signal using the optimization processing result.

Abstract: An augmented reality (AR) or mixed reality (MR) eyewear display utilizes an antenna arrangement for eyewear that optimizes the performance of the antenna without sacrificing the functionality or modularity of the eyewear. In one implementation, the antenna arrangement includes a first conductor that functions as a ground for the antenna, a second conductor configured to help retain a lens, and an antenna feed configured to excite the second conductor, causing the second conductor to act as an antenna. The first and/or second conductor additionally acts as a lens retention feature by interfacing with a groove in a lens and the use of a locking clip that prevents the lens from becoming dislodged from the second conductor, thus enabling quick and easy installation or removal of the lens.

Abstract: A method of generating stereoscopic display contents includes obtaining, from a Red, Green, Blue plus Distance (RGB-D) image using a processor, a first Red, Green, and Blue (RGB) image and a depth image; determining, based on depth values in the depth image, a first disparity map in accordance with the RGB-D image; determining a second disparity map and a third disparity map by transforming the first disparity map using a disparity distribution ratio; and generating, by the processor, the pair of stereoscopic images comprising a second RGB image and a third RGB image, wherein the second RGB image is generated by shifting a first set of pixels in the first RGB image based on the second disparity map, and the third RGB image is generated by shifting a second set of pixels in the first RGB image based on the third disparity map.

Abstract: The present disclosure relates to the field of biotechnology, and, more specifically, to systems and methods for identifying novel pore-forming toxins (PFTs) based on protein structures and sequences.

Abstract: The present disclosure provides a metal structure, or antenna radiator, for an accessory that is configured to function as both an antenna and an input control. The device may be a wearable device with a first surface shaped to be in contact with the human body and a second surface shaped to be exposed when the device is being worn. The antenna radiator may be located internally within the housing of the device and coupled to a printed circuit board (“PCB”). The PCB may be located between the antenna radiator and the surface of the housing such that the PCB may shield the antenna radiator from antenna loss due to the human body. An electric field may extend between the PCB and the antenna radiator. The fringe electric field may improve cross-head and cross-body connectivity between the accessory and another device.

Abstract: Disclosed are a video-based high-image-quality image extraction processing method and apparatus, and a mobile terminal. The method comprises: acquiring a video file from which a picture needs to be extracted; selecting a designated segment in the video file for frame-by-frame playback; when a shutter instruction is detected, according to the result of frame-by-frame playback, extracting a key frame required to generate a picture from within the selected designated segment, and extracting specified frames before and after the key frame; and performing multi-frame synthesis on the extracted key frame and the specified frames before and after the key frame, and obtaining a target static image.

Abstract: The present disclosure provides a metal structure, or antenna radiator, for an accessory that is configured to function as both an antenna and an input control. The device may be a wearable device with a first surface shaped to be in contact with the human body and a second surface shaped to be exposed when the device is being worn. The antenna radiator may be located internally within the housing of the device and coupled to a printed circuit board (“PCB”). The PCB may be located between the antenna radiator and the surface of the housing such that the PCB may shield the antenna radiator from antenna loss due to the human body. An electric field may extend between the PCB and the antenna radiator. The fringe electric field may improve cross-head and cross-body connectivity between the accessory and another device.

Abstract: A method of generating stereoscopic display contents includes obtaining, from a Red, Green, Blue plus Distance (RGB-D) image using a processor, a first Red, Green, and Blue (RGB) image and a depth image; determining, based on depth values in the depth image, a first disparity map in accordance with the RGB-D image; determining a second disparity map and a third disparity map by transforming the first disparity map using a disparity distribution ratio; and generating, by the processor, the pair of stereoscopic images comprising a second RGB image and a third RGB image, wherein the second RGB image is generated by shifting a first set of pixels in the first RGB image based on the second disparity map, and the third RGB image is generated by shifting a second set of pixels in the first RGB image based on the third disparity map.

Abstract: A biochar is produced by co-pyrolysing an aquatic plant enriched with heavy metals with a clay mineral, and the aquatic plants themselves have high enrichment and adsorb heavy metals in contaminated water; heavy metals are in situ adsorbed, and are coated or enriched in the biochar, therefore extending the migration time of heavy metals, which are also very stable; attapulgite and montmorillonite as clay minerals are loaded in the biochar during the preparing process; heavy metals contained in the biochar play a catalytic role, and synergy with activated attapulgite, therefore increasing the reliability of the biochar, and effectively reducing the ecological effectiveness and potential risk of heavy metals in the biochar.

Abstract: A process for producing a heavy metal mediated biochar composite using silicate solidification. Hydrocharis dubia has excellent enrichment of manganese ions in sewage, and is used to treat sewage water to adsorb heavy metals such as lead, manganese and zinc contained in the sewage water into roots, stems and leaves thereof, which are pyrolysed in stages at high temperature with activated red mud and bentonite prior to blending with zeolites, to produce said heavy metal mediated biochar composite; the process significantly extends the migration time of heavy metals, increases the stability of heavy metals and reduces the risk of environmental pollution by heavy metal leakage.

Abstract: A composite biochar for controlling heavy metal pollution and a process for producing the same, in particular enrichment of heavy metals such as arsenic and lead in soil with centipede grass, thereafter centipede grass is sintered with hydroxyapatite, sepiolite and chitosan, and compounded with microorganisms to produce said composite biochar; through the process of the present invention, heavy metals such as arsenic and lead are stably enriched or coated in said composite biochar, significantly reducing the potential hazard of arsenic and lead to the environment, and also providing new developmental ideas for treating heavy metal biomass.

Abstract: A porous biochar for improving heavy pollution and a method for producing the same. Said porous biochar is prepared as follows: arrowhead, which has excellent enrichment of lead, is used to absorb heavy metal lead in polluted water or artificial wetlands, simultaneously absorb heavy metal cadmium, thereafter is dried and treated as a biomass, and then the biomass is calcined in stages with a passivating agent in a high temperature environment, so as to heavy metals such as lead and cadmium be stably coated or enriched in a biochar, which is mixed with Pseudomonas aeruginosa having high resistant, to obtain the porous biochar; the porous biochar has high specific surface area, high porosity and excellent mechanical properties, is very stable under different acid-base environments and oxidizing conditions.

Abstract: A method of generating stereoscopic display contents includes obtaining, from a Red, Green, Blue plus Distance (RGB-D) image using a processor, a first Red, Green, and Blue (RGB) image and a depth image; determining, based on depth values in the depth image, a first disparity map in accordance with the RGB-D image; determining a second disparity map and a third disparity map by transforming the first disparity map using a disparity distribution ratio; and generating, by the processor, the pair of stereoscopic images comprising a second RGB image and a third RGB image, wherein the second RGB image is generated by shifting a first set of pixels in the first RGB image based on the second disparity map, and the third RGB image is generated by shifting a second set of pixels in the first RGB image based on the third disparity map.

Abstract: Systems, methods, and apparatuses, including electronic devices and computer-readable storage media, for adaptively switching wireless connections between antennas of a wearable electronic device and a host electronic device. One device includes a wearable electronic device with a first and second housing, each housing including two or more antennas. The wearable electronic device is configured to establish and monitor a wireless cross-link between two antennas in different housings, or between antennas in one housing and antennas of a host electronic device. The wearable electronic device can monitor the integrity of the wireless cross-link, and establish an updated cross-link in response to the wireless cross-link not meeting a predetermined integrity threshold. The wearable electronic device can monitor a wireless cross-head link between housings of a wearable electronic device at the same time as a wireless cross-body link between the wearable electronic device and the host electronic device.

Abstract: Disclosed are an arc discharge detection method and device for a battery system, and a battery energy storage system. The arc discharge detection method for a battery system comprises: sampling a terminal voltage and a charging and discharging current of a battery system, sampling the terminal voltage of the battery system twice and calculating a first voltage difference value, and sampling the terminal voltage of the battery system and a terminal voltage of an electricity load and calculating a second voltage difference value; performing time domain and frequency domain analysis on the sampled data to obtain corresponding time domain and frequency domain feature values; and on the basis of the time domain and frequency domain feature values and the first and second voltage difference values, determining whether arc discharge features are met, so as to determine whether an arc discharge fault occurs in the battery system.