Abstract: A liquid cooling head device includes a base, a cover covering the base, an inlet portion disposed on the base, an outlet portion formed on the cover, and a fluid pump having a housing and a fan blade. The base includes a diversion channel, an opening and a first chamber connected to the diversion channel and the opening. A second chamber is formed between the cover and the base, and connected to the first chamber through the opening. The inlet portion is connected to the first chamber through the diversion channel. The housing covers one surface of the cover, so that a third chamber is collectively defined by the housing and the cover, and connected with the second chamber and the outlet portion. The fan blade is located in the third chamber, and the diversion channel is located between the fan blade and the first chamber.

Abstract: A coolant distribution unit includes a casing, a control module, a power supply module, a heat exchange module, and a fluid driving module. The power supply module is electrically connected to the control module, the fluid driving module is electrically connected to the control module and the power supply module, and the fluid driving module is in fluid communication with the heat exchange module. The control module, power supply module, heat exchange module, and fluid driving module are all arranged in the casing. In addition, the control module controls the power supply module to output a corresponding electrical power to the fluid driving module according to an operation status of the fluid driving module.

Abstract: A liquid cooling head includes a bottom plate, a heat dissipation plate, a partition plate and an upper cover plate. The bottom plate includes an opening, and the heat dissipation plate, the partition plate and the upper cover plate are fixed to the bottom plate. The partition plate divides the opening into a plurality of cooling chambers, and each cooling chamber is equipped with a cooling liquid inlet, a cooling liquid outlet, a pump and an electric control device. The cooling liquid inlet and the cooling liquid outlet are formed in the upper cover plate, the pump is fluid-connected to the cooling liquid outlet, and the electric control device drives the pump to rotate, so that the cooling liquid flows through the cooling chamber to cool one heat source below the heat dissipation plate. In addition, a liquid cooling device with the liquid cooling head is also disclosed therein.

Abstract: A liquid cooling head manufacturing method includes the following steps. First, a liquid channel main body is provided. Then, a heat dissipation bottom plate and a heat sink are disposed in different recessed indentations in the liquid channel main body. The heat dissipation bottom plate and the heat sink are welded in the liquid channel main body and a cover plate is sealed on the liquid channel main body.

Abstract: A composition for preparing polyisocyanurate and polyurethane foams is provided, comprising A) an isocyanate-reactive component, B) a polyisocyanate component and C) a branched siloxane comprising at least three trimethylsiloxy groups. A method for preparing the polyisocyanurate and polyurethane foams, and foams prepared thereby are also provided.

Abstract: A leakage detection system is provided and includes a substrate provided between a first element and a second element, and at least one sensing unit provided on the substrate to generate an electrical signal when coming into contact with a leakage liquid. As such, warnings can be provided when coming into contact with the leakage liquid to avoid significant loss of assets.

Abstract: A cold plate is provided and includes: a housing disposed with a chamber; a base combined with the housing to form a working space separated from the chamber but connected with the chamber through an interconnecting structure to allow a working medium to flow within the chamber and the working space; a heat transfer structure disposed on the inner side of the base; and a pump disposed within the working space to drive the working medium in the working space. As such, the cold plate can provide better heat dissipation performance.

Abstract: A liquid cooling head device includes a base, a cover covering the base, an inlet portion disposed on the base, an outlet portion formed on the cover, and a fluid pump having a housing and a fan blade. The base includes a diversion channel, an opening and a first chamber connected to the diversion channel and the opening. A second chamber is formed between the cover and the base, and connected to the first chamber through the opening. The inlet portion is connected to the first chamber through the diversion channel. The housing covers one surface of the cover, so that a third chamber is collectively defined by the housing and the cover, and connected with the second chamber and the outlet portion. The fan blade is located in the third chamber, and the diversion channel is located between the fan blade and the first chamber.

Abstract: A liquid cooling head includes a chassis, an inlet channel, a thermally-conducting structure, a liquid gathering structure, a drain channel and a pump set. The chassis includes a lower chamber and an upper chamber communicated with the lower chamber through a connection opening. The inlet channel is disposed on one side of the chassis, and communicated with the upper chamber for radiating the heat of the working fluid away. The thermally-conducting structure is disposed in the lower chamber for gathering the working fluid passed through the thermally-conducting structure. The drain channel is disposed on one side of the chassis to be communicated with the lower chamber. The pump set for pushing the working fluid in the lower chamber to discharge the working fluid outwards from the drain channel.

Abstract: A liquid-cooling radiator module includes a first reservoir, a second reservoir, a heat dissipation stacked structure, a radiator inlet and a radiator outlet. The first reservoir includes a first chamber and a second chamber. The second reservoir includes a third chamber and a fourth chamber. A fin tube layer of the heat dissipation stacked structure is sandwiched between the first reservoir and the second reservoir. The radiator inlet is connected to the first reservoir and the first chamber. The radiator outlet is connected to the second reservoir and the fourth chamber. A part of fin tubes of the fin tube layer communicates with the first chamber and the third chamber, another part of the fin tubes communicates with the third chamber and the second chamber, and one another part of the fin tubes communicates with the second chamber and the fourth chamber.

Abstract: A coolant distribution unit includes a casing, a control module, a power supply module, a heat exchange module, and a fluid driving module. The power supply module is electrically connected to the control module, the fluid driving module is electrically connected to the control module and the power supply module, and the fluid driving module is in fluid communication with the heat exchange module. The control module, power supply module, heat exchange module, and fluid driving module are all arranged in the casing. In addition, the control module controls the power supply module to output a corresponding electrical power to the fluid driving module according to an operation status of the fluid driving module.

Abstract: A liquid-cooling heat dissipation device includes a water-cooling module, a water-tank module, a power module, a first and a second water-cooling radiators. The water-cooling module includes a base, a plate, an isolating structure and a heat-conducting unit. The isolating structure connects between the base and the plate. The plate, the isolating structure and the base define a first chamber. The isolating structure and the plate define a second and a third chambers. The first, the second and the third chambers are isolated from each other. The heat-conducting unit is partially located within the first chamber and partially exposed from the base. The first and the second water-cooling radiators connect to the plate and communicate between the water-cooling module and the water-tank module. The power module drives a medium to flow between the water-cooling module and the water-tank module through the first and the second water-cooling radiators.

Abstract: Method and device of storage capacity evaluation based on a CDN application are provided. The method includes: for any cache server corresponding to a target service, using files stored before a preset time node as old files in the cache server; determining a proportion of the old files in all files stored by the cache server and a visiting rate of the old files within a preset visit time range; determining an adjustment type of a storage capacity of the cache server according to the proportion of the old files and the visiting rate of the old files, where the adjustment type at least includes capacity to-be-expanded, capacity to-be-reduced and capacity unchanged; and determining an adjustment type of a storage capacity of the target service according to adjustment types of storage capacities of all cache servers corresponding to the target service.

Abstract: A heat exchanger includes a heat-absorbing part, two vapor conduits, a return conduit and a condensing part. The heat-absorbing part includes a vapor zone and a liquid zone. A first end of each vapor conduit is connected with the vapor zone of the heat-absorbing part. A first end of the return conduit is connected with the liquid zone of the heat-absorbing part. The condensing part includes a vapor-inputting chamber, a liquid-outputting chamber, a partition plate, a communication chamber, a first condenser tube group and a second condenser tube group. The vapor-inputting chamber is connected with a second end of each vapor conduit. The liquid-outputting chamber is connected with a second end of the return conduit. A loop is defined by the heat-absorbing part, the at least two vapor conduits, the return conduit and the condensing part collaboratively.

Abstract: The present disclosure provides a method and a device of storage capacity evaluation based on a CDN application. The method includes: for any cache server corresponding to a target service, using files stored before a preset time node as old files in the cache server; determining a proportion of the old files in all files stored by the cache server and a visiting rate of the old files within a preset visit time range; determining an adjustment type of a storage capacity of the cache server according to the proportion of the old files and the visiting rate of the old files, where the adjustment type at least includes capacity to-be-expanded, capacity to-be-reduced and capacity unchanged; and determining an adjustment type of a storage capacity of the target service according to adjustment types of storage capacities of all cache servers corresponding to the target service. The disclosure simultaneously considers storage cost and bandwidth cost and may also evaluate different services.

Abstract: The present disclosure provides nucleic acid activity-dependent expression vectors and activity-dependent expression cassettes for the activity-dependent expression of an encoded polypeptide. Also provided are recombinant adenoassociated viruses (AAV) containing an expression vector comprising an activity-dependent expression cassette for the activity-dependent expression of an encoded polypeptide by cells infected with the AAV vector. The present disclosure also provides methods for the activity-dependent labeling of cells in vitro or in vivo by introducing into the cells an expression vector containing an activity-dependent regulatory sequence driving expression of a labeling polypeptide. Also provided are methods for the activity-dependent control of cells in vitro or in vivo by introducing into the cells an expression vector containing an activity-dependent regulatory sequence driving expression of a light-responsive polypeptide.

Abstract: A dual-nuclear radio frequency (RF) coil device includes a first RF coil and a second RF coil. The first RF coil includes at least one adjustment capacitor, the first RF coil is configured to generate a first magnetic field, and a direction of a primary magnetic field of the first magnetic field is a first direction. The second RF coil includes an electric dipole and a tuning and matching circuit connected between two conductors of the electric dipole. The second RF coil is configured to generate a second magnetic field and a direction of a primary magnetic field of the second magnetic field is a second direction; the electric dipole is disposed in a center line of the first RF coil and an insulating layer is disposed between the electric dipole and the first RF coil; and the first direction is perpendicular to the second direction.

Abstract: A heat exchanger includes a heat-absorbing part, two gas conduits, a return conduit and a condensing part. The heat-absorbing part includes a gas zone and a liquid zone. The heat-absorbing part includes a gas zone and a liquid zone. A first end of each gas conduit is connected with the gas zone of the heat-absorbing part. A first end of the return conduit is connected with the liquid zone of the heat-absorbing part. The condensing part includes a gas-inputting chamber, a liquid-outputting chamber, a partition plate, a communication chamber, a first condenser tube group and a second condenser tube group. The gas-inputting chamber is connected with a second end of each gas conduit. The liquid-outputting chamber is connected with a second end of the return conduit. A loop is defined by the heat-absorbing part, the at least two gas conduits, the return conduit and the condensing part collaboratively.

Abstract: Aspects of the present disclosure include a method for visualizing a fiber-like structure in a biological specimen, the method comprising: clearing the biological specimen comprising a fiber-like structure, wherein the fiber-like structure is detectably labeled; illuminating the cleared biological specimen with two light sheets from a first side and a second side to produce an image volume, wherein the second side is opposite to the first side and wherein the image volume comprises a representation of the fiber-like structure; defining a plurality of voxels within the representation of the fiber-like structure; processing each of the plurality of voxels to estimate a plurality of principal fiber-like structure orientations; and defining a starting point on the representation of the fiber-like structure and propagating a plurality of streamlines from the starting point, according to the plurality of principal fiber-like structure.

Abstract: The present disclosure provides methods of preparing a biological specimen for imaging analysis, comprising fixing and clearing the biological specimen and subsequently analyzing the cleared biological specimen using microscopy. Also included are methods of quantifying cells, for example, active populations of cells in response to a stimulant. The present disclosure also provides devices for practicing the described methods. A flow-assisted clearing device provides rapid clearing of hydrogel-embedded biological specimens without the need of specialized equipment such as electrophoresis or perfusion devices.