Abstract: An esketamine liquid preparation. The esketamine liquid preparation is an aqueous solution agent, comprising esketamine or a pharmaceutically acceptable salt thereof, cholic acid or a derivative thereof, and water, with a pH value of 2.5-5.7. The esketamine liquid preparation is administrated via oral mucosa, and the preparation is high in stability, fast in absorption, high in bioavailability, simple in administration mode, and good in compliance. The esketamine liquid preparation can be used for preventing, relieving, or treating major depression, unipolar depression, treatment-refractory depression, intractable depression, agitated depression, and bipolar depression.

Abstract: The present application discloses an esketamine liquid preparation. The esketamine liquid preparation is an aqueous solution agent, and comprises esketamine or a pharmaceutically acceptable salt, a polyol or a derivative thereof and water. Moreover, the pH value of the liquid preparation is 2.5-5.7. The liquid preparation of the present application is administrated through oral mucosa. The preparation is highly stable, is absorbed quickly, has high bioavailability, and is easy to administer, and the adherence to the preparation is good. The preparation of the present application can be used for preventing, relieving or treating major depression, unipolar depression, refractory depression, intractable depression, anxiety depression and bipolar depression.

Abstract: A system for database backup including a controller, a metadata database coupled to the controller, a backup tool coupled to the controller, and a plurality of nodes coupled to the backup tool and accessed through a file system. The controller is configured to determine a first data change in node; in response to determining the first data change, freeze the file system; and generate an incremental snapshot of the at least one of the plurality of nodes (where the incremental snapshot including a portion of the at least one of the plurality of nodes). The controller is also configured to upload an encrypted copy of the incremental snapshot to a cloud storage; update the metadata database by storing an entry associating the incremental snapshot with the at least one of the plurality of nodes and unfreezing the file system.

Abstract: A mop bucket for cleaning and squeezing a flat mop includes a bucket body and a squeezing device disposed inside the bucket body; the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. A cleaning tool set is further provided. The mop bucket can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.

Abstract: A mop bucket for cleaning and squeezing a flat mop includes a bucket body and a squeezing device disposed inside the bucket body; the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. A cleaning tool set is further provided. The mop bucket can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.

Abstract: A mop bucket for cleaning and squeezing a flat mop includes a bucket body and a squeezing device disposed inside the bucket body; the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. A cleaning tool set is further provided. The mop bucket can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.

Abstract: A mop bucket for cleaning and squeezing a flat mop includes a bucket body and a squeezing device disposed inside the bucket body; the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. A cleaning tool set is further provided. The mop bucket can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.

Abstract: A mop bucket for cleaning and squeezing a flat mop includes a bucket body and a squeezing device disposed inside the bucket body; the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. A cleaning tool set is further provided. The mop bucket can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.

Abstract: A mop bucket for cleaning and squeezing a flat mop, includes a bucket body and a squeezing device disposed inside the bucket body; the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. The embodiments also include a cleaning tool set. The mop bucket can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.

Abstract: A mop bucket for cleaning and squeezing a flat mop, including a bucket body and a squeezing device disposed inside the bucket body; the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. The embodiments also include a cleaning tool set. The mop bucket can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.

Abstract: A method may be applied to a vehicle. The vehicle includes at least two devices to emit light that provide light energy by using a centralized light source, and each of the devices to emit light is connected to the centralized light source by using an optical waveguide. A control device in the vehicle may obtain a light-emitting instruction, where the light-emitting instruction carries information about a first optical power required by one target device to emit light of the at least two devices to emit light, or information about a first optical power required by each of a plurality of target devices to emit light; and allocate, based on the information about the first optical power, light emitted by the centralized light source, so that each target device to emit light obtains respective corresponding light by using the optical waveguide.

Abstract: This application provides example multi-focal-plane image generation apparatuses, example head-up display apparatuses, example methods, and example devices. One example apparatus includes a pattern generation device and a focal length adjuster. The pattern generation device is configured to generate a light beam that carries image information, and irradiate the light beam to a surface of the focal length adjuster. The focal length adjuster is configured to perform focal length adjustment on the light beam that is irradiated to the surface of the focal length adjuster to generate a plurality of focal planes of the multi-focal-plane image generation apparatus.

Abstract: A display apparatus includes a picture generation unit, a transflective member, and a curved mirror. The picture generation unit is configured to generate imaging light including image information and project the imaging light to the transflective member, the transflective member is configured to reflect the imaging light to the curved mirror, the curved mirror is configured to reflect received imaging light to the transflective member, and the transflective member is further configured to transmit the imaging light reflected by the curved mirror.

Abstract: A apparatus includes a picture generation unit, an enlarging and display unit, and a touch control unit. The picture generation unit is configured to generate a source image. The enlarging and display unit is configured to enlarge the source image generated by the picture generation unit. In addition, the picture generation unit is further configured to generate and project a touchscreen. The touch control unit is configured to detect and respond to a touch operation performed by a user on the touchscreen.

Abstract: Methods and systems for database query efficiency improvement are disclosed. In one embodiment, a method includes mirroring a primary database to a secondary database; creating a testing database comprising the schema; receiving a query; running the query on the testing database; and evaluating the query by: identifying predicates in the query; determining most common values for each column name by querying the secondary database; creating, for each column name, a list comprising at least one of the most common values; creating a test predicate comprising one of the column names and an entry for the list corresponding to the column name; creating a test query comprising one or more test predicates; determining a resource utilization of the query by running each of the test queries on the secondary database; and providing, to a user interface for display, an efficiency improvement recommendation when the resource utilization exceeds a threshold.

Abstract: A fruit and vegetable washing apparatus, including a container, a circulation-driving mechanism, and a scrubber; the container is formed with a circulation passage, the circulation passage including a fruits/vegetables flowing and staging zone and a brush washing zone, where on washing fruits/vegetables, the circulation passage provides a passageway for wash water and the fruits/vegetables to circulate between the fruits/vegetables flowing and staging zone and the brush washing zone; the scrubber is disposed in the brush washing zone, such that on washing the fruits/vegetables, the scrubber brushes the passing fruits/vegetables; the circulation-driving mechanism is configured to provide a driving force which, on washing the fruits/vegetables, drives the wash water and the fruits/vegetables to circulate in the circulation passage, the fruits/vegetables being brushed when sequentially passing through the brush washing zone, with a better cleaning effect achieved.

Abstract: A mop bucket for cleaning and squeezing a flat mop, comprises a bucket body and a squeezing device disposed inside the bucket body; wherein, the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. The present invention also discloses a cleaning tool set. The mop bucket of the present invention can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.

Abstract: A mop bucket for cleaning and squeezing a flat mop, including a bucket body and a squeezing device disposed inside the bucket body; the bucket body has a squeezing water section and a cleaning section, which are respectively at two different positions when used; when the mop head of the flat mop is removably inserted into the squeezing device, the squeezing device presses against the wiper on the mop head and scrapes the wiper on the mop head. The embodiments also include a cleaning tool set. The mop bucket can clean and squeeze a wiper on the flat mop by integrating both functions of cleaning and squeezing together, provide better cleaning and squeezing effects, and realize a convenient and labor-saving squeezing operation and pleasurable user experience.