Abstract: Provided in the present invention are a method and system for core sample analysis, an electronic device, and a storage medium.

Abstract: The cooling systems and methods of the present disclosure involve modular fluid coolers and chillers configured for optimal power and water use based on environmental conditions and client requirements. The fluid coolers include wet media, a first fluid circuit for distributing fluid across wet media, an air to fluid heat exchanger, and an air to refrigerant heat exchanger. The chillers, which are fluidly coupled to the fluid coolers via pipe cages, include a second fluid circuit in fluid communication with the air to fluid heat exchanger and a refrigerant circuit in thermal communication with the second fluid circuit and in fluid communication with the air to refrigerant heat exchanger. Pipe cages are coupled together to allow for expansion of the cooling system when additional cooling capacity is needed. The fluid coolers and chillers are configured to selectively operate in wet or dry free cooling mode, partial free cooling mode, or mechanical cooling mode.

Abstract: An apparatus, method and computer program product for query optimization in a Relational Database Management System (RDBMS), wherein an optimizer accesses a query expression repository (QER), so that the optimizer learns from previous versions of the queries to improve current and subsequent versions of the queries. The QER stores planning and execution information for QEs from the previous versions of the queries, wherein the QEs comprise table relations, intermediate results and/or final results of operations in the previous versions of the queries. The optimizer searches the QER for QEs from the query execution plans, and uses information from the QEs stored in the QER when optimizing the current and subsequent versions of the queries. The optimizer may also reuses results from the QEs stored in the QER.

Abstract: Disclosed is a method for removing a divalent inorganic mercury, belonging to the technical field of mercury treatment. The method includes: mixing a mercapto reagent, a sulfur powder, and a matrix with the divalent inorganic mercury to be removed to obtain a mixture, and subjecting the mixture to reaction at a pH value of 3 to 10, wherein the mercapto reagent includes at least one of 2-mercaptoethanol, cysteine, and glutathione. Divalent sulfide ions are generated from elemental sulfur powder, and combine with divalent mercury ions to form a mercury sulfide precipitation, thereby achieving the treatment of mercury pollution related to the divalent mercury ions.

Abstract: Cooling systems, such as refrigeration or air conditioning systems, utilize a two-phase refrigerant and capture heat in one environment (e.g., the interior of a building) and move the heat into a second environment (e.g., the exterior of a building). Such systems are often energy intensive even when the second environment is relatively cold. Systems, and preferably a single system, is provided to selectively provide mechanical cooling, free cooling, and optional heating utilizing the same refrigerant and substantially the same components.

Abstract: A line bushing for insertion into a wall opening in a wall of a refrigerator, in particular a domestic refrigerator. The bushing has an elastic body formed with a first cutout for the passage of a first line and at least one second cutout running next to the first cutout for the passage of a second line. The second cutout is in the form of a blind hole with a base. A local depression is formed in the base of the second cutout for plugging the second line through the base.

Abstract: A heat exchanger assembly has: a housing, which defines an accommodation space extending along a longitudinal axis between a first opening and a second opening; a heat exchanger, accommodated in the accommodation space of the housing; and a fan, which is accommodated in the accommodation space of the housing and is configured to draw in a gaseous fluid through the first or the second opening of the housing, to conduct the fluid through the heat exchanger and to blow the fluid out through the other opening of the housing. The housing further has a side opening and a latching structure located in the region of the side opening. The fan can be inserted into the accommodation space through the side opening in a transverse direction extending transversely to the longitudinal axis and is latched to the housing by the latching structure at an edge region situated in the side opening.

Abstract: A whole-process automatic loading-and-unloading and logistics system is disclosed. The system includes an outer yarn preparation area, an inner yarn preparation area, a weaving area and an in-air conveying rail; the outer yarn preparation area is configured to have a carrier assembly, which delivers an outer yarn winding package to an outer yarn branch rail of a twisting machine in a twisting area via the out yarn main rail of the in-air conveying rail; in the inner yarn preparation area, the carrier assembly delivers an inner yarn winding package to an inner yarn branch rail of the twisting machine in the twisting area via the inner yarn main rail of the in-air conveying rail; in the twisting area, the carrier assembly delivers a yarn product to a yarn product donning rail in the weaving area via the yarn product main rail of the in-air conveying rail.

Abstract: A multistage high-efficiency cooling system provides coolant to both a coolant distribution unit fluidically coupled to liquid-cooled components and an air-cooling component located proximate to air-cooled components via a zone chiller. Depending on a percentage of air-cooled components versus liquid-cooled components within the system, and optionally ambient temperature, the system determines whether to adjust the temperature for the coolant provided to the air-cooling component. In one instance, the outdoor chiller provides the coolant to both the coolant distribution unit and the air-cooling component at a first temperature for operation of the cooling distribution unit, and the zone chiller adjusts the first temperature of the coolant to a different second temperature for the air-cooling component.

Abstract: Disclosed are a reinforcement learning model training method and apparatus, a dialogue processing method and a dialogue system, and a computer-readable storage medium. The reinforcement learning model training method includes: acquiring unlabelled data and labelled data which are used for training a reinforcement learning model; on the basis of the unlabelled data, generating, with reference to the labelled data, an experience pool for training the reinforcement learning model; and using the experience pool to train the reinforcement learning model.

Abstract: An information acquisition method, applied to a network device is provided. The method includes receiving first indication information sent by a first terminal device, in which the first indication information is configured to indicate to the network device that the first terminal device has recorded full duplex information. The recorded full duplex information may be information about the network device supporting a full duplex communication, which is measured and recorded based on a configuration requirement of the network device when the first terminal device is in an idle state.

Abstract: An always-on display method includes, in response to a screen-off event, a first processor sends always-on display control information to a second processor and then sleeps. The always-on display control information includes an always-on display instruction. In response to the always-on display instruction, the second processor switches a screen-on interface to a first screen-off interface, and in response to a screen-off interface switching event, the second processor switches the first screen-off interface to a second screen-off interface, and the display content of at least one of the first screen-off interface or the second screen-off interface includes a dynamic picture.

Abstract: An auxiliary device and method for recovering forepoling grouted steel pipe piles used in foundation pit support, comprising clamps, clamping hydraulic shafts, an upper plane, lifting hydraulic shafts, and a main plane. The clamping hydraulic shafts are mounted on the upper plane, with four shafts installed. The lifting hydraulic shafts are fixed to the main plane, with their output ends connected to the upper plane. Both the upper plane and main plane are designed to sleeve onto the forepoling grouted steel pipe piles. The recovery device and method disclosed in this invention can significantly improve the recycling rate of forepoling grouted steel pipe piles, thereby substantially reducing construction costs. This innovation not only enhances economic efficiency but also actively promotes low-carbon emission reduction during construction, making positive contributions to environmental protection and sustainable development.

Abstract: In a cooling device having at least one storage compartment which is accessible via a door, and also having a coolant circuit and a control unit. The coolant circuit has a compressor, a force-cooled condenser with a condenser fan, and at least one evaporator. The control unit is configured so that, in a first operating mode with a closed door, the control unit operates the condenser fan at a first rotational speed, and in a second operating mode it operates the evaporator and operates the condenser fan at a second rotational speed. The second rotational speed is substantially lower than the first rotational speed and the second operating mode begins after the door has closed.

Abstract: A rotary disk friction locking apparatus may have a base and a moving disk assembly rotatably arranged on the base. The top of the moving disk assembly may be used for mounting an automobile seat. A friction brake ring may be fixedly provided on the base. A friction brake block and a driving mechanism that controls movement of the friction brake block may be movably connected to the moving disk assembly. The friction brake block may be arranged on an inner side or an outer side of the friction brake ring. The driving mechanism may drive the friction brake block to move, which can force the friction brake block to frictionally join to a side part of the friction brake ring.

Abstract: A rotary seat locking mechanism may have a fixed disk and a movable disk in rotational fit with the fixed disk. A gear ring may be fixedly mounted on the fixed disk and may have an annular tooth portion. A locking block and a transmission assembly that controls sliding of the locking block may be slidably mounted on the movable disk. A locking tooth adapted to the annular tooth portion may be provided on a side portion of the locking block. By controlling sliding of the locking block through the transmission assembly, the locking tooth can be switched between engaging with and disengaging from the annular tooth portion.

Abstract: A downhole tool includes a body having a longitudinal axis and a fluid passage extending through the body. The downhole tool includes at least one blade having one or more engagement faces thereon. At least one junk slot extends adjacent to the at least one blade. The downhole tool includes a cleaning element at the longitudinal axis of the body. The cleaning element has a substrate bore in fluid communication with the fluid passage. The cleaning element includes at least one opening or passing a fluid from the substrate bore and out of the downhole tool through the at least one junk slot. A flow direction of the at least one opening is offset from the longitudinal axis.

Abstract: A method, apparatus, and computer program product for executing a relational database management system (RDBMS) in a computer system, wherein the RDBMS manages a relational database comprised of one or more tables storing data. A virtual join index provides a new query optimization method based on enhanced join-index-rewrite to achieve cost-based late-materialization benefits without the costs for join index creation, storage and maintenance. The virtual join index is not materialized, but instead is treated by an optimizer as join index with dynamically determined columns to rewrite the query. In the join index rewrite, the columns of the virtual join index are dynamically determined by join columns in the query to produce a partial-covering query execution plan. Then, in the query execution plan, the virtual join index is replaced by a base table to produce the late materialization query execution plan.

Abstract: The disclosure relates to the field of computer technology, and in particular, to a video call method, apparatus, electronic device and storage medium. The video call method provided according to the embodiments of the present disclosure. In the method, in response to a first video call mode of a client being selected, the first video call mode is started. A video and a virtual background corresponding to the first video call mode are displayed in a local image display box; wherein the client further has a second video call mode, and a virtual background display policy corresponding to the first video call mode is different from a virtual background display policy corresponding to the second video call mode.

Abstract: A method comprises applying a first reference drive voltage to a wordline of memory cells to generate a respective first resulting voltage level from each respective cell in the wordline, and storing in memory a first respective logic value indicated by the respective first resulting voltage level for each memory cell. The method further comprises applying a second reference drive voltage to the wordline of memory cells to generate a respective second resulting voltage level from each respective cell in the wordline while detecting a pattern of logic values stored in the memory in parallel. The memory is modified based on a second respective logic value indicated by the respective second resulting voltage level, and at least one of the first reference drive voltage and the second reference drive voltage is modified based on the detected pattern data.