Abstract: A method for managing flash memory and a flash memory device are provided. By acquiring a logical word line address corresponding to each logic unit in at least one logic unit and looking up a mapping table according to the logical word line address corresponding to each logic unit, and determining a physical word line group corresponding to the logical word lines of each logic unit, in this application, the mapping table can be used to map the logical word lines and the physical word line groups, the physical word line group includes at least one physical word line, and the numbers of data pages included in at least two physical word lines are not exactly the same, and different types of flash memory particles are adapted to improve compatibility of the flash memory device with flash memory particles.

Abstract: One or more systems and methods according to the present disclosure may apply a model for integrating distribution systems having proliferated distributed energy resources into the independent system operator energy market, particularly when one or more distribution systems are connected to a transmission system via multiple interconnection buses. Additionally, systems and methods for applying a compact multi-port model for power exchanges and associated bidding strategies are described. A the multi-port power exchange model may be constructed based on the operational feasible region of a distribution system; describing physical operation characteristics of distributed energy resources, flexible loads, and the distribution network; and the bidding strategy model may describe total operating cost of the distribution system, while recognizing electrically coupled injections of multiple interconnection buses.

Abstract: Organic-inorganic composite catalyst particles for a photocatalytic polymerization reaction, and an application thereof are provided. The organic-inorganic composite catalyst includes an organic part and an inorganic part, the inorganic part being dispersed on the surface and/or inside the organic part in the form of inorganic particles, the size of the inorganic particles being less than 100 ?m. Also provided are a method for performing a photocatalytic polymerization reaction under the catalysis of the catalyst, and a product obtained thereby. The organic-inorganic composite catalyst is used for a photocatalytic polymerization reaction during a polymerization reaction process, and can be suitable for polymerization of most olefins. A polymer prepared by means of the excitation polymerization reaction can be used in multiple fields such as color-changing fibers, color-changing sheets and color-changing inks, and anti-counterfeiting and camouflage.

Abstract: A liquid crystal compound represented by general formula F is useful as a liquid crystal composition and as a liquid crystal display device that contains the liquid crystal composition. The liquid crystal compound has a large clearing point, large optical anisotropy and sizable or large dielectric anisotropy absolute value under the condition of maintaining a suitable rotary viscosity, enabling the liquid crystal composition that contains the compound represented by general formula F has a large optical anisotropy, small rotational viscosity, high VHR (UV) and long low-temperature storage duration under the condition of maintaining proper clearing point, proper dielectric anisotropy absolute value and proper VHR (initial), and the liquid crystal display device that contains the liquid crystal composition of the present invention has good contrast, high response speed, high reliability and good low-temperature storage stability.

Abstract: The present invention provides a liquid crystal composition and a liquid crystal display device thereof. The liquid crystal composition comprises at least one compound of general formula I and at least one compound of general formula II. The liquid crystal composition has a larger vertical dielectric constant (??), a larger ratio of the vertical dielectric constant to the absolute value of dielectric anisotropy (??/|??|), a larger Kave value and a higher transmittance while maintaining an appropriate clearing point, an appropriate optical anisotropy, and an appropriate absolute value of the dielectric anisotropy, such that the liquid crystal display device comprising the same has a better contrast, a faster response speed and a better transmittance while maintaining an appropriate range of operating temperature and an appropriate threshold voltage.

Abstract: A data recovery method, an apparatus, and a solid state drive are provided. The method includes: copying, after an abnormality occurs in the solid state drive, memory data of a first memory space to a solidified area of a second memory space, and then writing address information of the solidified area to a third memory space; recovering, after a controller is reset for the first time, the memory data of the first memory space according to the address information of the solidified area; flushing data of the second memory space into a flash memory space according to the recovered memory data of the first memory space; and performing, after the controller is reset for the second time, data recovery on the solid state drive according to memory data of the flash memory space.

Abstract: A liquid crystal composition includes at least one compound represented by formula I and at least one compound represented by formula II. The liquid crystal composition has a relatively large absolute value of dielectric anisotropy, a relatively large K value, a relatively long low-temperature storage time period, a relatively low polymer layer surface roughness, a relatively small pre-tilt angle, a relatively fast speed for forming pre-tilt angle, a relatively low polymer residue, a relatively high VHR and a relatively good pre-tilt angle stability, while maintaining appropriate clearing points, optical anisotropy and rotational viscosity. A liquid crystal display device containing the liquid crystal composition has a relatively wide temperature usage range, relatively good contrast, and relatively good low-temperature mutual solubility.

Abstract: A cache management method, a solid state drive controller, and a solid state drive are provided. The solid state drive comprises a cache space, and the cache space comprises a dirty data block linked list. The method comprises: obtaining a write command and generating a first dirty data block used to record data information of the write command; and if the first dirty data block conflicts in address range with a second dirty data block in the dirty data block linked list, marking data in the conflicting region of the second dirty data block as invalid and inserting the first dirty data block into the dirty data block linked list.

Abstract: The present invention relates to a positive electrode material comprising a core material and a coating layer coated on the surface of the core material, the core material comprises nickel hydroxide, and the coating layer comprises a tetravalent cobalt compound; and based on the weight of the coating layer, the content of the tetravalent cobalt compound is no less than 45 wt %. The present invention also relates to a preparation method for the positive electrode material. The present invention further relates to an alkaline secondary battery containing the positive electrode material.

Abstract: Disclosed is a method for enhancing service quality of a solid state drive and the solid state drive, and the method includes the steps of obtaining a remaining storage resource corresponding to a write I/O request periodically, and determining a resource waiting time of the write I/O request based on a resource consumption rate of the write I/O request. The method also includes setting a maximum scheduling delay time for the write I/O request according to the resource waiting time of the write I/O request. The method also includes identifying a type of unprocessed I/O requests and obtaining an arrival time of the unprocessed I/O requests, and sorting the unprocessed I/O requests in combination with the maximum scheduling delay time. The method further includes processing the unprocessed I/O requests according to the sort of the unprocessed I/O requests.

Abstract: The present invention provides a liquid crystal composition and a liquid crystal display device thereof. The liquid crystal composition comprises at least one compound of general formula I and at least one compound of general formula II. The liquid crystal composition has a larger vertical dielectric constant (??), a larger ratio of the vertical dielectric constant to the absolute value of dielectric anisotropy (??/|??|), a larger Kave value and a higher transmittance while maintaining an appropriate clearing point, an appropriate optical anisotropy, and an appropriate absolute value of the dielectric anisotropy, such that the liquid crystal display device comprising the same has a better contrast, a faster response speed and a better transmittance while maintaining an appropriate range of operating temperature and an appropriate threshold voltage.

Abstract: A data recovery method for a storage medium, a data recovery system, and a related device are provided. The method includes: when a write failure occurs during writing data into the storage medium, extracting original data corresponding to the data failed to be written and original verification data in an original RAID stripe to which the original data belongs; obtaining new verification data by performing calculation on the original data and the original verification data by using a preset verification algorithm; forming a new RAID stripe by using valid data other than the original data in the original RAID stripe and the new verification data, and recording data relations in the new RAID stripe; and when a reading failure occurs during reading the data in the new RAID stripe, recovering, according to the data relations in the new RAID stripe, the data failed to be read.

Abstract: A liquid crystal composition includes at least one compound of general formula F and at least one compound of general formula N. A liquid crystal display device includes the liquid crystal composition. The liquid crystal composition has a larger K value, a smaller rotational viscosity, a higher VHR value, a longer low temperature storage time and a shorter response time while maintaining an appropriate clearing point, an appropriate optical anisotropy, and an appropriate absolute value of dielectric anisotropy, such that the liquid crystal display device including the liquid crystal composition has a better contrast, a wider temperature range for application, a faster response speed, a better contrast and a higher reliability.

Abstract: A liquid crystal composition includes at least one compound of general formula F and at least one compound of general formula N. A liquid crystal display device includes the liquid crystal composition. The liquid crystal composition has a larger K value, a smaller rotational viscosity, a higher VHR value, a longer low temperature storage time and a shorter response time while maintaining an appropriate clearing point, an appropriate optical anisotropy, and an appropriate absolute value of dielectric anisotropy, such that the liquid crystal display device including the liquid crystal composition has a better contrast, a wider temperature range for application, a faster response speed, a better contrast and a higher reliability.

Abstract: A data recovery method for a storage medium, a data recovery system, and a related device are provided. The method includes: when a write failure occurs during writing data into the storage medium, extracting original data corresponding to the data failed to be written and original verification data in an original RAID stripe to which the original data belongs; obtaining new verification data by performing calculation on the original data and the original verification data by using a preset verification algorithm; forming a new RAID stripe by using valid data other than the original data in the original RAID stripe and the new verification data, and recording data relations in the new RAID stripe; and when a reading failure occurs during reading the data in the new RAID stripe, recovering, according to the data relations in the new RAID stripe, the data failed to be read.

Abstract: A data recovery method, an apparatus, and a solid state drive are provided. The method includes: copying, after an abnormality occurs in the solid state drive, memory data of a first memory space to a solidified area of a second memory space, and then writing address information of the solidified area to a third memory space; recovering, after a controller is reset for the first time, the memory data of the first memory space according to the address information of the solidified area; flushing data of the second memory space into a flash memory space according to the recovered memory data of the first memory space; and performing, after the controller is reset for the second time, data recovery on the solid state drive according to memory data of the flash memory space.

Abstract: One or more systems and methods according to the present disclosure may apply a model for integrating distribution systems having proliferated distributed energy resources into the independent system operator energy market, particularly when one or more distribution systems are connected to a transmission system via multiple interconnection buses. Additionally, systems and methods for applying a compact multi-port model for power exchanges and associated bidding strategies are described. A the multi-port power exchange model may be constructed based on the operational feasible region of a distribution system; describing physical operation characteristics of distributed energy resources, flexible loads, and the distribution network; and the bidding strategy model may describe total operating cost of the distribution system, while recognizing electrically coupled injections of multiple interconnection buses.

Abstract: Disclosed is a method for enhancing service quality of a solid state drive and the solid state drive, and the method includes the steps of obtaining a remaining storage resource corresponding to a write I/O request periodically, and determining a resource waiting time of the write I/O request based on a resource consumption rate of the write I/O request. The method also includes setting a maximum scheduling delay time for the write I/O request according to the resource waiting time of the write I/O request. The method also includes identifying a type of unprocessed I/O requests and obtaining an arrival time of the unprocessed I/O requests, and sorting the unprocessed I/O requests in combination with the maximum scheduling delay time. The method further includes processing the unprocessed I/O requests according to the sort of the unprocessed I/O requests.

Abstract: A method and system for binding and verifying between a storage device and hosts are provided. The method includes: sharing system parameters in advance with the hosts by the storage device, where the hosts are to be bound to the storage device; using a programmable read-only memory as the storage device, dividing the programmable read-only memory into m regions, completing the binding between each region and one corresponding host to be bound using the pre-shared system parameters, where m is a positive integer; verifying an identity of a bound host in accordance with the pre-shared system parameters through a zero-knowledge proof method by the storage device; if the verification is successful, starting the storage device and serving the bound host; if the verification is unsuccessful, terminating the starting of the storage device and refusing to serve the bound host.