Abstract: A storage apparatus, comprising a compartment; and a box assembly, which is arranged in the compartment. The box assembly comprises: a first side wall; a second side wall arranged opposite the first side wall; a first conductive layer arranged on the second side wall; a first electret membrane, which is arranged on the first side wall, located between the first side wall and the first conductive layer and arranged parallel to the first conductive layer; and an adjusting component, which is used for adjusting the electric field intensity between the first conductive layer and the first electret membrane.

Abstract: The disclosure relates to a life prediction system for a fan of a lamp. The system comprises a fan signal detecting module to detect at least one working parameter of the fan; and a micro control unit to receive the working current signal, the environment temperature signal and the working rotation speed signal of the fan. The detecting module comprises a current detecting unit to detect a working current of the fan and output a working current signal; a temperature detecting unit to detect a working environment temperature of the fan and output an environment temperature signal; and a rotation speed detecting unit to detect and output a working rotation speed signal of the fan. The micro control unit calculates a predicted residual life of the fan based on the received working current signal, the environment temperature signal, the working rotation speed signal, through the life model of the fan.

Abstract: An electret membrane, a preparation method, a refrigerator body assembly, and a refrigeration apparatus. The electret membrane includes: an electret material matrix; and a metal electrode, which is arranged on one side of the electret material matrix and is attached to the electret material matrix. The electret membrane can be electrically polarized insofar as the electret membrane is not externally connected to a power source, and can form an electrostatic field; and when the electret membrane is applied to a fresh keeping function of apparatuses, such as a refrigerator, the fresh-keeping structure of the electrostatic field can be simplified, thereby reducing the costs for generating the electrostatic field, and facilitating the realization of low-cost and high-reliability electrostatic field fresh keeping for fresh-keeping apparatuses, such as the refrigerator.

Abstract: A periodic metal array structure can be disposed between two antenna modules and include rows of metal unit assemblies that each includes metal units connected to each other in a longitudinal direction. Each metal unit has a first longitudinal strip, two first transverse strips, two second transverse strips, and two second longitudinal strips having shorter longitudinal lengths than that of the first longitudinal strip, and being respectively disposed on the left and right sides of the first longitudinal strip and respectively spaced apart therefrom by intervals at which the second transverse strips are located. The top and bottom ends of the first longitudinal strip are respectively connected with the first transverse strips. At least one first transverse strip can be connected to a first transverse strip of an adjacent metal unit. Each second transverse strip can be connected to the first longitudinal strip and a corresponding second longitudinal strip.

Abstract: Computer technology where a data table and its index are created using a VOLATILE column type. Records are inserted with a final value and index is inserted with staging value. One bit is used in the data record header to indicate whether it is in-sync with its index. One bit in index key header indicates either this can be an index only update or needs to be a regular update. In the beginning, when a record is inserted into data page, both flag bits will be in the off status, meaning the data record is not in sync with its index entry and only index-only update(s) may be performed. This can prevent needless updates to a data page stored in a volatile memory (for example, a random access memory).

Abstract: An electromagnetic unit regulation method and apparatus, and a device and a storage medium are provided. The electromagnetic unit regulation method includes: determining a to-be-regulated electromagnetic unit set S2, where the to-be-regulated electromagnetic unit set S2 is a subset of a regulatable electromagnetic unit set S1; grouping an electromagnetic unit set into X electromagnetic unit groups, where X?1, and the electromagnetic unit set includes at least one of the to-be-regulated electromagnetic unit set S2 and the regulatable electromagnetic unit set S1; determining an electromagnetic property set to be regulated; and according to the X electromagnetic unit groups, performing regulation on an electromagnetic property of the to-be-regulated electromagnetic unit set S2, where the electromagnetic property is at least one electromagnetic property in the electromagnetic property set.

Abstract: The present invention relates to a lighting apparatus driver, comprising: a filter, which is used to filter out noise; a rectifier, which is used to convert an alternating current voltage into a direct current voltage; and a plurality of voltage regulator integrated circuit (IC) modules, which are directly or indirectly connected to the rectifier, wherein each one of the plurality of voltage regulator IC modules is used to connect to a separate lighting apparatus, so that each one of the plurality of voltage regulator IC modules can independently control the electric current inputted into the lighting apparatus connected thereto.

Abstract: A driving circuit is provided in this present disclosure, the driving circuit includes a voltage input module, a quick start module and a control module. The voltage input module includes a first input terminal and a second input terminal and is configured to receive an alternating current voltage and convert the alternating current voltage into a direct current voltage. The quick start module is coupled to the voltage input module and configured to receive the direct current voltage and convert the direct current voltage into a startup voltage. The control module is coupled to the quick start module and configured to receive the startup voltage and control a load, wherein the quick start module comprises a first resistor and a second resistor connected in series and is coupled between the first input terminal and the control module.

Abstract: Embodiments of the present disclosure relate to a method, system, and computer program product for block level lock on a data table. According to the method, in response to first transactional processing to be applied on a data table, one or more processors determine that first target data to be accessed during execution of the first transactional processing is comprised in a continuous range of data in the data table. One or more processors determine whether a block lock is available for locking the continuous range of data for the first transactional processing. In accordance with a determination that the block lock is available, one or more processors grant the first transactional processing with the block lock, the block lock being associated with lock information indicating the continuous range of data.

Abstract: The application discloses a lamp-control apparatus with multiple input modes including a housing, a circuit board arranged in the housing, a flash mode switching module, a sound-controlled flash mode input circuit for receiving external environment sound waves and sending a control command to a control circuit. The control circuit for controlling a light emitting mode of a lamp is arranged on the circuit board. The flash mode switching module and the sound-controlled flash mode input circuit are respectively and electrically connected to the control circuit. The sound-controlled flash mode input circuit includes a pickup device that is located inside the housing. One or more through holes for transmitting the sound waves to the pickup device are formed in the position where the pickup device is mounted on the housing.

Abstract: Provided is a method of making colloidal selenium nanoparticles. The method includes the steps as follows: Step (A): providing a reducing agent and an aqueous solution containing a selenium precursor; Step (B): mixing the aqueous solution containing the selenium precursor and the reducing agent to form a mixture solution in a reaction vessel and heating the mixture solution to undergo a reduction reaction and produce a composition containing selenium nanoparticles, residues and a gas, and guiding the gas out of the reaction vessel, wherein an amount of the residues is less than 20% by volume of the mixture solution; and Step (C): dispersing the selenium nanoparticles with a medium to obtain the colloidal selenium nanoparticles. The method has advantages of simplicity, safety, time-effectiveness, cost-effectiveness, high yield and eco-friendliness.

Abstract: A liquid cooling battery module includes a collector, a cell liquid cooler, a plurality of cells, a base, an upper lid and a plurality of copper busbars. The cell liquid cooler has a plurality of multi-port extrusion tubes spaced apart equidistantly and parallelly. The collector is in communication with the multi-port extrusion tubes to thereby form a cooling liquid circulation space. The collector has therein an adaptor in communication with the cooling liquid circulation space. The cells are disposed between the multi-port extrusion tubes parallelly and alternately. The base is disposed below the cell liquid cooler. A plurality of cell positioning slots are disposed at the bottom of the base and adapted to contain the cells. The multi-port extrusion tubes serve as heat-dissipating tubes between the cells to enable the liquid cooling battery module to control temperature and attain uniform distribution of temperature quickly and effectively by liquid cooling.

Abstract: A support accessory is provided for an LED lamp, and the support accessory includes a frame and a supporting leg. The frame is configured to be detachably coupled to the LED lamp, and the supporting leg is configured for supporting the frame on at least one certain support surface when the LED lamp is installed. Wherein, in a first state, the supporting leg is fixed to the frame, and in a second state, the supporting leg is slidably coupled to the frame and can slide relative to the frame to adjust length of the supporting leg between the frame and the at least one certain support surface.

Abstract: A method of preparation and application for a glass ceramic sealing thin strip with high sealing performance, differing from using conventional glass ceramic packaging paste applied to the junction of the cell stack assembly and connecting plates. The glass ceramic sealing thin strip of present invention utilizes tape casting to produce a single layer or multi-layer stacking in accordance with the required thickness of the glass-ceramic sealing thin strip, and cutting the glass ceramic sealing thin strips from molds in accordance with the geometry of cell stacks with equal thickness of the glass ceramic sealing thin strip for SOFC cell stack assembly, aiming to overcome the setbacks of the conventional dispensing method with glass ceramic packaging paste that makes the thickness difficult to control, and to effectively improve sealing performance of the cell stack assembly and the power generation efficiency, and achieve commercial application with mass production.

Abstract: A cold plate for a battery module comprising a plurality of cells that produces heat as charging and discharging is disclosed. The cold plate includes a plurality of first fins distributed in a first subarea of the cold plate; and a plurality of second fins distributed in a second subarea of the cold plate; wherein a second fin coverage of the plurality of second fins distributed in the second subarea is smaller than a first fin coverage of the plurality of first fins distributed in the first subarea when an amount of heat absorption of the second subarea from the plurality of cells is greater than an amount of heat absorption of the first subarea from the plurality of cells.

Abstract: Provided is an LED lamp circuit, comprising an LED luminous component circuit, a rectifier circuit, and an output control circuit coupled between the LED luminous component circuit and the rectifier circuit. The LED luminous component circuit comprises at least one light-emitting diode. The rectifier circuit is configured to output a rectified voltage to the LED luminous component circuit. The output control circuit comprises a voltage regulator circuit and a control switch circuit. The voltage regulator circuit comprises a thermosensitive device and a voltage divider connected in series. The thermosensitive device can regulate the control voltage at both ends of the control switch circuit. To protect the LED lamp, the control switch circuit disconnects when the control voltage is less than the threshold voltage of the control switch circuit.