Abstract: Various embodiments of the present application are directed towards an ion-sensitive field-effect transistor for enhanced sensitivity. In some embodiments, a substrate comprises a pair of first source/drain regions and a pair of second source/drain regions. Further, a first gate electrode and a second gate electrode underlie the substrate. The first gate electrode is laterally between the first source/drain regions, and the second gate electrode is laterally between the second source/drain regions. An interconnect structure underlies the substrate and defines conductive paths electrically shorting the second source/drain regions and the second gate electrode together. A passivation layer is over the substrate and defines a first well and a second well. The first and second wells respectively overlie the first and second gate electrodes, and a sensing layer lines the substrate in the first and second wells. In some embodiments, sensing probes are in the first well, but not the second well.

Abstract: A one-shot neural architecture search method referred to as MergeNAS by merging different types of convolutions into a single operation. This mergence approach reduces the search cost to roughly half a GPU-day as well as alleviates the over-fitting problem caused by a traditional differentiable architecture search (DARTS) approach by reducing the number of redundant parameters.

Abstract: A reading method for solid-state disk returns data and/or information depending on state information. A data unit stored in the solid-state disk comprises metadata and a plurality of sectors including at least two sectors of user data, the metadata comprising a sector state set indicating state information of each of the sectors in the data unit, and the state information comprising a valid state and an invalid state. In response to receiving a read command from a host to read at least one of the sectors in the data unit, the solid-state disk returns actual data to the host for one or more of the sectors in the valid state, and returns information indicating a read error to the host for one or more of the sectors in the invalid state, according to the sector state set stored in the metadata of the data unit.

Abstract: A method and apparatus for determining a reference voltage id disclosed. The method may include: reading data from a first flash memory page by using different reference voltages, and taking, as a first target reference voltage, one of the different reference voltages at which the first number of erroneous bits of the data that is read reaches a converegence value. The first flash memory page is any one of multiple flash memory pages of a flash memory block to be tested. The method may include adjusting the first target reference voltage to obtain second target reference voltages; and reading data from the flash memory pages by using the second target referece voltages, and taking, as a target reference voltage, one of the second target reference voltages at which the second number of erroneous bits of the data that is read is the smallest.

Abstract: Various embodiments of the present application are directed towards an ion-sensitive field-effect transistor for enhanced sensitivity. In some embodiments, a substrate comprises a pair of first source/drain regions and a pair of second source/drain regions. Further, a first gate electrode and a second gate electrode underlie the substrate. The first gate electrode is laterally between the first source/drain regions, and the second gate electrode is laterally between the second source/drain regions. An interconnect structure underlies the substrate and defines conductive paths electrically shorting the second source/drain regions and the second gate electrode together. A passivation layer is over the substrate and defines a first well and a second well. The first and second wells respectively overlie the first and second gate electrodes, and a sensing layer lines the substrate in the first and second wells. In some embodiments, sensing probes are in the first well, but not the second well.

Abstract: A system for better utilization of liquefied natural gas (LNG) on gasification of the liquid includes a gas power generation subsystem, a steam power generation subsystem, an energy storage subsystem, and a cooling subsystem. A gasification device of the gas power generation subsystem renders the LNG gaseous and collects cold energy generated during the gasification. The gas is supplied to the gas power generation device for generating electrical power and the cold energy is supplied to the steam power generation subsystem and the cold storage subsystem. Electrical power generated by the gas power generation subsystem and the steam power generation subsystem is supplied to the cooling subsystem, and the energy stored in the energy storage subsystem is also supplied to the cooling subsystem.

Abstract: A GaN-based superjunction vertical power transistor and a manufacturing method thereof. The transistor includes: a N?-GaN layer; a first P-GaN layer as a current blocking layer, formed on the N?-GaN layer and having a gate region window; and a thin barrier Al(In, Ga)N/GaN heterostructure conformally formed on the current blocking layer and filling the bottom and one or more sidewalls of the gate region window, wherein the N?-GaN layer has an etched groove completely or partially filled with a second P-type GaN layer, an N+-GaN layer is formed under the second P-type GaN layer, and the N+-GaN layer is in direct contact with the second P-type GaN layer and the N?-GaN layer to form a superjunction composite structure.

Abstract: A cooling device includes a cabinet, a coolant circulation mechanism, and a heat exchange mechanism. The coolant circulation mechanism includes a first conduit, a second conduit, a control conduit, and a circulation conduit. The circulation conduit is connected to the cabinet and the heat exchange mechanism. The first conduit and the second conduit are connected to the heat exchange mechanism. The control conduit is connected to the cabinet and selectively connects to the first conduit or the second conduit. When the control conduit connects to the second conduit, coolant from the cabinet flows to the heat exchange mechanism through the second conduit. When the control conduit connects to the first conduit, coolant from the heat exchange mechanism flows to the cabinet through the first conduit. Coolant in the cabinet flows through the circulation conduit to the heat exchange mechanism when a level of the coolant reaches the circulation conduit.

Abstract: A data center heat recovery system includes a building heat pump system providing a first liquid when an ambient temperature is lower than a first preset temperature, a heat exchanger receiving the first liquid from the building heat pump system when the ambient temperature is lower than the first preset temperature, and modular data centers. Each of the modular data centers includes an air chiller and a data center. Each of the modular data centers is coupled to the heat exchanger through a second pipeline containing a second fluid. When the ambient temperature is higher than a second preset temperature, the air chiller cools the second fluid. When the ambient temperature is lower than the first preset temperature, the heat exchanger collects heat from the second fluid, and the heat exchanger transports the collected heat to the building heat pump system through the first fluid in the first pipeline.

Abstract: An immersion cooling tank includes a tank body and a liquid flow tube. The tank body holds a coolant and an electronic device. The tank body defines an inlet and an outlet. The inlet and the outlet are respectively located at opposite ends of the electronic device for inputting and outputting the coolant. The coolant flows through the electronic device. The liquid flow tube includes at least one adjuster. The liquid flow tube is located inside the tank body and coupled to at least one of the inlet or the outlet. The at least one adjuster faces the electronic device for controlling an amount of the coolant flowing in or out of the tank body.

Abstract: Aspects of the invention include systems and methods to obtain meta features of a dataset for training in a deep learning application. A method includes selecting an initial search space that defines a type of deep learning architecture representation that specifies hyperparameters for two or more neural network architectures. The method also includes applying a search strategy to the initial search space. One of the two or more neural network architectures are selected based on a result of an evaluation according to the search strategy. A new search space is generated with new hyperparameters using an evolutionary algorithm and a mutation type that defines one or more changes in the hyperparameters specified by the initial search space, and, based on the mutation type, the new hyperparameters are applied to the one of the two or more neural networks or the search strategy is applied to the new search space.

Abstract: Techniques for unattended object detection using machine learning are disclosed. A machine learning policy, for use in identifying unattended objects in a captured image depicting one or more objects, is generated. The generating includes determining a level of occlusion in the captured image relating to the objects, and determining the machine learning policy based on the determined level of occlusion. A machine learning model is selected, from among a plurality of pre-defined machine learning models, based on the generated machine learning policy. An unattended object is detected in the captured image using the selected machine learning model.

Abstract: A cooling system includes a control device, an ice water unit, a cooling tower, and an ice water storage tank. The ice water unit, the ice water storage tank, and the data center are coupled through a pipeline. According to a first condition, the ice water unit provides cooling water to the data center. According to a second condition, the ice water unit provides cooling water to the data center and the ice water storage tank. According to a third condition, the ice water storage tank provides cooling water to the data center and the ice water unit refills cooling water to the ice water storage tank, and heated water of the data center flows to the ice water unit.

Abstract: A GaN-based superjunction vertical power transistor and a manufacturing method thereof. The transistor includes: a N?-GaN layer; a first P-GaN layer as a current blocking layer, formed on the N?-GaN layer and having a gate region window; and a thin barrier Al(In, Ga)N/GaN heterostructure conformally formed on the current blocking layer and filling the bottom and one or more sidewalls of the gate region window, wherein the N?-GaN layer has an etched groove completely or partially filled with a second P-type GaN layer, an N+-GaN layer is formed under the second P-type GaN layer, and the N+-GaN layer is in direct contact with the second P-type GaN layer and the N?-GaN layer to form a superjunction composite structure.

Abstract: A cooling and heating energy saving system includes a cooling and heating device, a data center, a boiler, a heat exchanger, and a circulating pump. The boiler receives waste heat of the data center and heat generated by the cooling and heating device, and then generates high-temperature heat and transfers the high-temperature heat to an indoor heating device. The heat exchanger receives heat from the cooling and heating device and the data center. The circulating pump receives the heat generated by the data center and transmits the heat to an outdoor cold source, and further transmits the outdoor cold source to an indoor device through the heat exchanger.

Abstract: Aspects of the invention include a computer-implemented method that receives, by a processor, an ensemble decision tree and generates, by the processor, native code from the ensemble decision tree. The method compiles, by the processor, the native code into machine language and scores, by the processor, the execution time of the native code. The method dynamically reoptimizes, by the processor, portions of the native code corresponding to the most traversed portion of the ensemble decision tree.

Abstract: A containerized data system, including a container body, a first cabinet array, a second cabinet array and a plurality of first air-conditioning devices. The first cabinet array and the second cabinet array are positioned in the container body and spaced apart from each other. Air intake areas of the first cabinet array and the second cabinet array communicates with a cold aisle connection space of the container body. Heat dissipation areas of the first cabinet array and the second cabinet array communicates with a hot aisle connection space of the container body. Air inlets of the first air-conditioning devices are communicated with the hot aisle connection space to collect the hot air flow in the container body, and air outlets of the plurality of first air-conditioning devices are communicated with the cold aisle connection space to convey the cold air flow to the container body.

Abstract: Methods, computer program products, and systems are presented. The method computer program products, and systems can include, for instance: receiving, by a production database, a query statement for processing by the production database; the production database in performing runtime execution processing of the query statement identifying one or more query statement value of the query statement; the production database in performing runtime execution processing of the query statement establishing, using a predictive model, an access path based on the identified one or more query statement value; and the production database using the established access path in performing runtime execution processing of the query statement.

Abstract: An immersion cooling tank includes a tank body and a liquid flow tube. The tank body holds a coolant and an electronic device. The tank body defines an inlet and an outlet. The inlet and the outlet are respectively located at opposite ends of the electronic device for inputting and outputting the coolant. The coolant flows through the electronic device. The liquid flow tube includes at least one adjuster. The liquid flow tube is located inside the tank body and coupled to at least one of the inlet or the outlet. The at least one adjuster faces the electronic device for controlling an amount of the coolant flowing in or out of the tank body.

Abstract: The present disclosure provides a computer-implemented method, computer system and computer program product for object detection. According to the computer-implemented method, a first object can be classified to be a first category based on detection data acquired in a detection area. Then, a confidence score for the first category can be calculated based on historical detection data of the detection area, wherein the confidence score presents possibility degree of at least one object of the first category existing in the detection area. Whether classification of the first object is abnormal can be determined based on the confidence score.