Abstract: A connector assembly may include a distribution frame having an adjusting channel; and one or more distribution modules disposed and slidably moveable along the adjusting channel. Each of the one or more distribution modules may include an inlet connector to receive cooling liquid from a cooling liquid loop, a fluid blind mate connector to-connect the cooling liquid loop to one or more cold plates of a server chassis, and a guiding element having a guiding structure and configured to house the fluid blind mate connector. When the guiding element contacts with the server chassis, the guiding element causes the corresponding distribution module to move slightly to align the fluid blind mate connector with a server connector of the server chassis, such that the fluid blind mate connector connects with the server connector to distribute the cooling liquid to the server chassis.

Abstract: According to one embodiment, a system for a rack includes an equipment module for coupling to a rack module. The rack module includes a pair of main connectors for coupling to a coolant source and a pair of manifold connectors, and includes a vertical leak detection channel that has a leak detection cable. Positioned between the main connectors and the manifold connectors is a structure that at least partially contains the main connectors and has a liquid path to the channel. The equipment module includes a chassis that has a pair of connectors and a conducting path. The chassis also has an opening for receiving the manifold connectors for coupling to the connectors, and another opening, the conducting path extends from an interior of the chassis to the other opening and is arranged to guide liquid out of the opening and into the channel while both modules are coupled together.

Abstract: A server chassis can include a first pair of connectors on a rear side of the server chassis arranged to face in a rear direction to engage with connectors of a server rack. Upon engaging of the connectors, the server chassis fluidly connects to a supply line and a return line of the server rack. The server chassis includes a second pair of connectors on a front side of the server chassis, to fluidly connect to a cooling system of a server node housed within the server chassis. The second pair of connectors are held to the server chassis with one or more movable attachments that enable coupling and decoupling of the second pair of connectors to the cooling system of the server node. Fluid channels fluidly connect the first pair of connectors to the second pair of fluid connectors.

Abstract: According to one embodiment, a battery management system includes a BBU shelf with bus connectors; a battery module with battery cell packages, each package including battery cells; and a converter module having 1) a set of converters, 2) a first busbar to which each converter is connected, the first busbar includes several switches, each switch is disposed between adjacently connected converters, 3) a second busbar to which each converter is connected via a first switch and to which each package is connected via a second switch, the second busbar comprises several switches, each switch is disposed between adjacently connected converters, packages, or a combination thereof, and 4) a third busbar to which each converter is connected and to which each bus connector is connected via a third switch, the third busbar includes several switches, each switch is disposed between adjacently connected converters, bus connectors, or a combination thereof.

Abstract: Presented herein are embodiments of a two-stage methodology that integrates data-driven imitation learning and model-based trajectory optimization to generate optimal trajectories for autonomous excavators. In one or more embodiments, a deep neural network using demonstration data to mimic the operation patterns of human experts under various terrain states, including their geometry shape and material type. A stochastic trajectory optimization methodology is used to improve the trajectory generated by the neural network to ensure kinematics feasibility, improve smoothness, satisfy hard constraints, and achieve desired excavation volumes. Embodiments were tested on a Franka robot arm equipped with a bucket end-effector. Embodiments were also evaluated on different material types, such as sand and rigid blocks. Experimental results showed that embodiments of the two-stage methodology that comprises combining expert knowledge and model optimization increased the excavation weights by up to 24.

Abstract: A cooling plate includes an inlet port to receive two-phase fluid, a base plate to be attached to server electronics for cooling, a number of heat spreading structures disposed and spaced apart on the base plate to extend a heat exchange area from the base plate, and a number of fluid channels disposed on the base plate, where each of the fluid channels is situated between a pair of adjacent heat spreading structures. Each of the fluid channels include a channel inlet to receive at least a portion of the two-phase fluid from the inlet port, a channel outlet to allow the received portion of the two-phase fluid to flow through and exit the corresponding fluid channel, and one or more intermediate outlets disposed between the channel inlet and the channel outlet to allow at least a portion of the received two-phase fluid to exit in vapor or liquid form.

Abstract: A frame for a liquid-cooled chassis in an IT rack, can include a fluid supply line contained within one or more walls of the frame and a fluid return line contained within the one or more walls of the frame. Fluid distribution function and hardware are integrated to the frame. One or more contact pads can be located on an external surface of the frame, for transferring thermal energy with IT equipment.

Abstract: A leak prevention system includes a liquid cooling device for a server. The liquid cooling device includes a fluid area configured to receive a cooling fluid. The leak prevention system also includes at least one pair of detection wires disposed within the liquid cooling device and at least partially surrounding the fluid area. The leak prevention system also includes a sensor connected to the detection wires and configured to detect when a cooling fluid contacts the detection wires.

Abstract: A cooling device includes a frame structure housing an internal channel and an inlet port coupled to the frame structure. The inlet port is to receive a coolant fluid and to direct the coolant fluid to the internal channel. The cooling device includes one or more contactless cooling ports disposed on the frame structure and at a predetermined distance from an electronic chip. A contactless cooling port accelerates a stream of coolant fluid across a surface of the electronic chip to transfer heat from the electronic chip to the stream of coolant fluid. The cooling device includes a separator for segregating and diverging streams of coolant fluid. The cooling device includes a mounting structure secured to the frame structure, where the mounting structure is mounted to a server chassis or a server board.

Abstract: Methods, systems, and devices for managing coolant in data centers are disclosed. Coolant may be used in data centers to regulate the temperatures of computing devices. The disclosed methods and system may provide for containment of vapor and condensation of the vapor into coolant. The coolant may be used as part of a two phase cooling system to cool the computing devices. The vapor may be generated when the coolant removes heat from computing devices during operation while at least partially submerged in the coolant. A mobile condenser is used for condensing the vapor within the containment.

Abstract: In one embodiment, a liquid cooling apparatus includes a first cooling loop to provide cooling liquid to a heat load, wherein the first cooling loop comprises a first condenser unit, a first liquid supply line, and a first vapor return line and a second cooling loop to provide cooling liquid to the heat load, wherein the second cooling loop comprises a second condenser unit, a second liquid supply line, and a second vapor return line, wherein the first vapor return line and the second vapor return line are coupled by an interconnection loop. The liquid cooling apparatus further includes a first pressure sensor coupled to the first vapor return line, a second pressure sensor coupled to the second vapor return line, and at least one main cooling source controlled based on the first pressure sensor and the second pressure sensor.

Abstract: According to one embodiment, a connector module, including a first bidirectional connector and a second bidirectional connector to fluidly interconnect between a cooling module of a server chassis and a rack manifold of an electronic rack; and a middle section positioned and connected between the first bidirectional connector and the second bidirectional connector. The middle section includes a side wall that separates the first bidirectional connector and the second bidirectional connector, and a side gate disposed on the side wall to place the first bidirectional connector and second bidirectional connector in fluid communication while in a first position and to fluidly isolate the first bidirectional connector from the second bidirectional connector while in a second position. The side gate is adapted to actuate to the first position when a fluid pressure differential between the first bidirectional connector and the second bidirectional connector exceeds a predetermined threshold.

Abstract: In one embodiment, a process is performed during controlling Autonomous Driving Vehicle (ADV). A confidence level associated with a sensed obstacle is determined. If the confidence level is below a confidence threshold, and a distance between the ADV and a potential point of contact with the sensed obstacle is below a distance threshold, then performance of a driving decision is delayed. Otherwise, the driving decision is performed to reduce risk of contact with the sensed obstacle.

Abstract: A starting point, a set of one or more way points, and a destination point of a route along which the ADV is to be driven are determined. All lane segments near the starting point, the set of way points, and the destination point within a predetermined threshold distance are determined respectively. A set of route candidates are determined with an A-star (A*) searching algorithm based on a set of nodes representing all the lane segments near the starting point, the set of way points, and the destination point respectively. The route is selected from the set of route candidates based on respective costs of the set of route candidates. The ADV is being controlled to drive along the selected route autonomously.

Abstract: A battery backup unit module is dimensioned to fit on a height of one rack unit of an electronic rack, and one third of a shelf width of the electronic rack. A cell pack of the battery backup unit module has batteries arranged parallel to the front of the electronic rack. There are 14 groups of battery cells. Each group of battery cells has six battery cells connected in parallel. The 14 groups of battery cells are connected in series. The 14 groups are arranged as two groups in width of the cell pack, one group in height of the cell pack, and seven groups in depth of the cell pack. In each group, the six battery cells are arranged as an upper row three cells deep and a lower row three cells deep.

Abstract: Described herein are system and method embodiments to improve word representation learning. Embodiments of a probabilistic prior may seamlessly integrate statistical disentanglement with word embedding. Different from previous deterministic methods, word embedding may be taken as a probabilistic generative model, and it enables imposing a prior that may identify independent factors generating word representation vectors. The probabilistic prior not only enhances the representation of word embedding, but also improves the model's robustness and stability. Furthermore, embodiments of the disclosed method may be flexibly plugged in various word embedding models. Extensive experimental results show that embodiments of the presented method may improve word representation on different tasks.

Abstract: Embodiments of a generative framework comprise cooperative learning of two generative flow models, in which the two models are iteratively updated based on the jointly synthesized examples. In one or more embodiments, the first flow model is a normalizing flow that transforms an initial simple density into a target density by applying a sequence of invertible transformations, and the second flow model is a Langevin flow that runs finite steps of gradient-based MCMC toward an energy-based model. In learning iterations, synthesized examples are generated by using a normalizing flow initialization followed by a short-run Langevin flow revision toward the current energy-based model. Then, the synthesized examples may be treated as fair samples from the energy-based model and the model parameters are updated, while the normalizing flow directly learns from the synthesized examples by maximizing the tractable likelihood. Also provided are both theoretical and empirical justifications for the embodiments.

Abstract: In one embodiment, a light detection and range (LIDAR) device includes an array of light transmitting and receiving (TX/RX) units arranged to sense a physical range associated with a target. Each of the light TX/RX units includes a mounting board having a light pass-through opening and a light emitter mounted adjacent to the light pass-through opening. The light emitter is configured to emit a light beam towards the target according to a transmitting path. The LIDAR device further includes a light detector positioned behind the mounting board to receive at least a portion of the light beam reflected from the target through the light pass-through opening according to a light receiving path. The light transmitting path and the light receiving path are substantially in parallel and close to each other.

Abstract: A fluid deployment unit includes an expandable container containing mixed fluids in a gaseous region and a liquid region, where the expandable container includes a gas-out port, a liquid-out port, a gas-in port, and a liquid-in port. The fluid deployment unit includes a first three-way valve having a first port coupled to the liquid-out port, a second port coupled to the gas-out port, and a third port matable to an inlet of an electronic rack. The fluid deployment unit includes a second three-way valve having a first port matable to an input port of a liquid-to-liquid exchange unit of a testing assistant unit, a second port coupled to the gas-in port, and a third port matable to an outlet of the electronic rack, where the liquid-in port of the expandable container is matable to an output port of the liquid-to-liquid exchange unit.

Abstract: An electronic rack includes a rack manifold to be coupled to an external cooling fluid source, including a supply rack manifold and a return rack manifold, wherein the rack manifold includes a plurality of pairs of rack connectors disposed thereon. The electronic rack further includes a server chassis including a connector holder having a pair of a supply server connector and a return server connector to be connected with a corresponding pair of rack connectors of the rack manifold. The electronic rack further includes a controller, in response to detecting a leakage of the cooling fluid, configured to cause the supply server connector to disconnect from the supply rack manifold, while maintaining the return server connector connected with the return rack manifold, and to increase a flowrate of the cooling fluid on the return rack manifold to remove the cooling fluid residing within the server chassis.