Abstract: The present disclosure generally relates to an electronic lock and a method and system for controlling an electronic lock. Particularly, it relates to a waterproof electronic lock including a lock body and a shackle for latching and unlatching relative to the lock body. The lock body comprises a front cover and a rear cover that is removably detachable from the front cover to form a hollow cavity within; and a central frame disposed within the hollow cavity, the central frame having a recess and a circumferential groove around the recess. The waterproof electronic lock comprises an input interface frame having a top surface and a bottom surface, the input interface frame including a first circumferential projection on the bottom surface that corresponds to fit the circumferential groove.

Abstract: The present disclosure provides a quick-release assembly, a connection structure, a photography accessory, and a quick-release kit. The quick-release assembly includes: a mounting base, a top end thereof being defined with a fixing slot, a bottom end thereof being defined with an accommodation slot, a limiting groove being defined in a bottom wall, an opening at one end of the limiting groove being communicated with the accommodation slot, and an opening at the other end of the limiting groove being communicated with the fixing slot; a sliding member slidably accommodated in the accommodation slot; and a resisting member received in the limiting groove. After assembly, one end of the resisting member abuts against the sliding member, and the other end of the resisting member extends out of a bottom wall surface of the fixing slot.

Abstract: A method for poling an optical device to form a high quality optical device, comprises forming a lithium niobate (LN) thin film on a substrate, depositing one or more poling electrodes on the LN film, depositing a dielectric material having a dielectric constant of greater than about 20 on the LN film and the one or more poling electrodes to form a temporary cladding layer, applying an electric field across by use of the one or more poling electrodes and removing the temporary cladding layer to form an optical device. An optical device is also described.

Abstract: This application discloses an method for displaying an interface and apparatus, an electronic device, a computer-readable storage medium and a computer program product, and relates to the field of computer technologies. The method includes: displaying an event reward interface, and displaying, on the event reward interface, a reward identifier of at least one stage in an event, the event including at least two stages, and each stage including at least two sub-stages; and displaying a reward identifier of a sub-stage within a first target stage in response to a reward identifier of the first target stage being selected, the first target stage being any one of the at least two stages included in the event, and the reward identifier of the sub-stage being configured for representing a reward allowed to be collected after the sub-stage is completed.

Abstract: According to one embodiment, a control device for an electric power system capable of supplying power to load devices in a plurality of demand areas based on first to N-th power devices in first to N-th placement areas and configured to be able to perform at least one of discharge or charge of power, comprising: a controller configured to detect, based on information of power consumption in each of the demand areas, a demand area in which the power consumption fluctuates more significantly than usual, and determine, according to distances between a detected demand area and the first to N-th placement areas, a control parameter related to input and output of power in the first to N-th power devices.

Abstract: The present disclosure generally relates to an electronic lock and a method and system for controlling an electronic lock. Particularly, it relates to a waterproof electronic lock including a lock body and a shackle for latching and unlatching relative to the lock body. The lock body comprises a front cover and a rear cover that is removably detachable from the front cover to form a hollow cavity within; and a central frame disposed within the hollow cavity, the central frame having a recess and a circumferential groove around the recess. The waterproof electronic lock comprises an input interface frame having a top surface and a bottom surface, the input interface frame including a first circumferential projection on the bottom surface that corresponds to fit the circumferential groove.

Abstract: An extension subsystem receives a first code upload request. The extension subsystem sends a first code or metadata of the first code to a hosting subsystem based on the first code upload request. The hosting subsystem invokes a code processing service based on the first code or the metadata of the first code to process the first code such that the extension subsystem and the hosting subsystem collaborate to invoke the code processing service on a hosting subsystem side.

Abstract: According to one embodiment, a charging system charges a secondary battery provided in a mobile body. The charging system includes a controller which selects one of a first charge mode which charges the secondary battery by simulating a synchronous generator and a second charge mode which charges the secondary battery without simulating the synchronous generator, and a charger which charges the secondary battery by an operation corresponding to the first charge mode or the second charge mode selected by the controller.

Abstract: A connecting member includes a connecting base defined with a nesting slot, and the connecting base is nested on a structural member through the nesting slot. The structural member is defined with an adapting slot, the connecting base is provided with a driving structure, a reset member, and a clamping member, the clamping member is exposed on a sidewall of the nesting slot and matched to the adapting slot, and the driving structure is movably disposed on the connecting base. The driving structure includes a pressing member and a driving button, the clamping member is disposed on a sliding path of the pressing member, the pressing member is configured to press or loosen the clamping member, the driving button presses and drives the pressing member to slide, and the reset member is configured to apply a force to the driving button to reset the driving button.

Abstract: A lithium niobate (LN) external cavity includes a Vernier mirror structure which includes two or more microresonators where: one or more or all of the Vernier microresonators are tuned by the electro-optic Pockels effect of LN, with tuning electrodes integrated with the resonators, and one of the Vernier microresonators could be tuned by the thermo-optic effect, with a local heater integrated with the resonator. One or more or all of the Vernier microresonators include a section or the whole resonator that is periodically poled to achieve quasi-phase matching for nonlinear frequency conversion directly inside the laser cavity. The lithium niobate (LN) external cavity also includes a phase shifter whose phase is tuned by the electro-optic Pockels effect of LN. A Sagnac loop mirror is placed at the end of the device to function as the output end mirror of the laser cavity.

Abstract: A foldable mounting device for a photographing device includes a base plate, a side plate, and a locking member. The base plate includes a connecting end defining an accommodation slot and a connecting opening. The connecting opening passes through a side of the base plate, the accommodation slot includes a slot opening passing through another side of the base plate. The side plate is connected to the connecting end. The locking member slidably received in the accommodation slot includes a locking part and an operation part. The operation part is received in the slot opening. The locking member is operatable to move from a locked state in which the locking part passes through the connecting opening to engage with the side plate to an unlocked state in which the locking part is disengaged from the side plate and the side plate is rotatable relative to the base plate.

Abstract: According to one embodiment, a control device for an electric power system capable of supplying power to load devices in a plurality of demand areas based on first to N-th power devices in first to N-th placement areas and configured to be able to perform at least one of discharge or charge of power, comprising: a controller configured to detect, based on information of power consumption in each of the demand areas, a demand area in which the power consumption fluctuates more significantly than usual, and determine, according to distances between a detected demand area and the first to N-th placement areas, a control parameter related to input and output of power in the first to N-th power devices.

Abstract: A device and method for high-speed tuning soliton microcomb comprising an on-chip high-Q lithium niobate (LN) microresonator as a comb resonator whose dispersion is engineered for soliton comb generation where a strong electro-optic Pockels effect is used to dynamically tune the soliton repetition rate, with integrating electrooptic tuning and modulation elements directly integrated into the comb resonator.

Abstract: Methods and systems are described for conversion of an optical signal. The device may comprise a conversion layer comprising a nonlinear optical material with a surface structure disposed to receive a pump signal and cause a bound states in the continuum (BIC) optical mode. The conversion layer may be configured to convert, based on nonlinear interaction with the BIC optical mode, an incoming signal incident on the conversion layer from an incoming wavelength to a target wavelength.

Abstract: According to one embodiment, a power supply device connected to a power grid is provided. The power supply device includes an inverter, a control unit configured to control operation of the inverter using a first parameter value so as to simulate characteristics of a synchronous generator, and an acquisition unit configured to obtain a second parameter value different from the first parameter value. The control unit is configured to control the operation of the inverter by changing the first parameter value to the acquired second parameter value.

Abstract: A method for measuring the diameter of filament diffraction fringes by frequency domain calculation comprising: building a set of diffraction optical path measurement system and capturing diffraction fringe images; determining the starting point of the imaging range; Simulating the electromagnetic field propagation process in Fraunhofer diffraction, and determining the optimal fringe range considering the noise caused by the difference in CCD sensitivity; Finally calculating the filament diameter by Fourier transform for different lengths of fringe. The final value of the calculated filament diameter is obtained by fitting an envelope to the variation of the diameter. The invention is simple in calculation and has little dependence on the experimental device, which means the superiority of using the frequency domain for parameter measurement, and the measurement accuracy is in the sub-nanometer level.

Abstract: The present disclosure provides a quick-release assembly, a connection structure, a photography accessory, and a quick-release kit. The quick-release assembly includes: a mounting base, a top end thereof being defined with a fixing slot, a bottom end thereof being defined with an accommodation slot, a limiting groove being defined in a bottom wall, an opening at one end of the limiting groove being communicated with the accommodation slot, and an opening at the other end of the limiting groove being communicated with the fixing slot; a sliding member slidably accommodated in the accommodation slot; and a resisting member received in the limiting groove. After assembly, one end of the resisting member abuts against the sliding member, and the other end of the resisting member extends out of a bottom wall surface of the fixing slot.

Abstract: A quick release and assembly connecting member and a shooting device are provided. The quick release and assembly connecting member includes a connecting cover, a mounting seat, and a fixing mechanism. The connecting cover includes an inserting portion. The mounting seat includes a mounting and locking mechanism. The fixing mechanism is arranged on the connecting cover and/or the mounting seat, and configured for mounting and fixing the quick release and assembly connecting member with a device. The mounting and locking mechanism includes a clamping and locking sleeve and a locking member. The clamping and locking sleeve is configured to enclose a mounting space for mounting the inserting portion, and the locking member is capable of switching between a first position and a second position, so that when the inserting portion is mounted in the mounting space, the locking member is capable of locking or unlocking the inserting portion.

Abstract: A power conditioning system includes a control circuit. The control circuit is configured to switch a output control mode to any one of a first mode in which an operation not based on inertia is executed and a second mode in which an operation based on inertia is executed, performs output control according to a first rating in the first mode, and performs output control according to a second rating different from the first rating in the second mode.