Abstract: Refrigeration system comprising: a first cryogenic chamber defined by at least a first wall, the first cryogenic chamber being thermally connected to at least a first cold source; a second cryogenic chamber defined by at least a second wall which extends at least partially facing the first wall, the second chamber being contained inside the first chamber and thermally connected to at least a second cold source; wherein the refrigeration system comprises at least a first door made in the first wall substantially facing a second door made in the second wall, the first door and the second door being arranged in such a way that the opening of the first door allows the opening of the second door.

Abstract: Disclosed are a method for controlling a variable refrigerant flow (VRF) air conditioner, a VRF air conditioner, and a computer-readable storage medium. The method includes: obtaining a target indoor unit in a warming stage among started indoor units; determining a target superheat degree according to a working condition parameter of the target indoor unit; and adjusting an operating parameter of an electronic expansion valve of the target indoor unit according to the target superheat degree.

Abstract: An air conditioner indoor unit includes a body including an air outlet, an outer air deflector arranged at the air outlet and configured to open and close the air outlet, and an inner air deflector arranged at an inner side of the outer air deflector. The outer air deflector includes a plurality of first vent holes penetrating the outer air deflector in a thickness direction of the outer air deflector. The inner air deflector includes a plurality of second vent holes penetrating the inner air deflector in a thickness direction of the inner air deflector.

Abstract: A cryogen storage vessel at an installation is filled with liquid cryogen from a liquid cryogen storage tank that has a pressure lower than that of the vessel. After headspaces of the vessel and tank are placed in fluid communication with another via a gas transfer vessel and are pressure-balanced, a pump in a liquid transfer line connected between the tank and the vessel is operated to transfer amounts of liquid cryogen from the tank to the vessel via the liquid transfer line and pump as amounts of gaseous cryogen are transferred, through displacement by the pumped cryogenic liquid, from the vessel to the tank.

Abstract: Methods for utilizing carbon dioxide to produce multi-carbon products are disclosed. The systems and methods of the present disclosure involve: reducing CO2 to produce a first product mixture comprising an alcohol product mixture comprising one or more alcohols and a paraffin product mixture comprising one or more paraffins; dehydrating the alcohol product mixture to form an olefin product mixture comprising one or more olefins; oligomerizing the olefin product mixture to form a higher olefin product mixture comprising unsaturated paraffins and optionally aromatics; and reducing the higher olefin product mixture to form a higher hydrocarbon product mixture comprising unsaturated paraffins and optionally aromatics. Catalyst materials and reaction conditions for individual steps are disclosed to optimize yield for ethanol or jet fuel range hydrocarbons.

Abstract: An air conditioner indoor unit includes an electric control box, a cleaner device, and an electrical wire. The cleaner device includes a filter screen rail assembly and a cleaning assembly configured to drive a filter screen to move on the filter screen rail assembly to clean the filter screen. The cleaning assembly includes an electrical wire connection end. The electrical wire is arranged at the cleaning assembly and the filter screen rail assembly. One end of the electrical wire is connected to the electrical wire connection end, and another end of the electrical wire is connected to the electric control box.

Abstract: A stack battery pack for an electric vertical take-off and landing aircraft includes a first pouch cell comprising a first top surface and a first bottom surface, a second pouch cell comprising a second top surface and a second bottom, wherein the first pouch cell and the second pouch cell are aligned such that the first bottom surface is in contact with the second top surface, an ejecta barrier located between the first pouch cell and the second pouch cell, wherein the ejecta barrier is configured to be substantially impermeable to a cell ejecta from the first pouch cell, and a vent configured to vent the cell ejecta, wherein the stack battery pack is configured to power a propulsor component.

Abstract: A method for operating a water treatment plant, wherein the plant is equipped with an apparatus for injecting a gas containing oxygen into an effluent, the method comprising a phase of detecting anomalies in the operation of the apparatus, wherein the phase of detecting anomalies comprises an implementation of the following steps: providing data representative of the operating state of the apparatus; and providing a system for acquiring and processing said data.

Abstract: A cooling assembly for preventing cell-to-cell heat transfer is provided. Cooling assembly may include a battery pack, which may include a plurality of battery cells. Cooling assembly may also include a cooling plate. Cooling plate may include a geometry that prevents battery cells from exchanging heat during operation and/or malfunctions. Cooling plate geometry may include geometric features imprinted in a surface of cooling plate.

Abstract: A system for battery management for a vehicle that includes at least a battery coupled to the vehicle, at least a sensor coupled to the battery, the sensor configured to detect an internal state datum of the battery, and transmit the internal state datum to a computing device, a computing device, the computing device configured to receive the internal state datum from the at least a sensor, generate an alert datum as a function of the internal state datum and an alert threshold, transmit the alert datum to a remote device, and a remote device communicatively connected to the vehicle, the remote device is configured to, receive the alert datum from the computing device, and display the alert datum.

Abstract: The device (1) for fastening an object (2) on a structure has a base (3) intended to be fastened on the structure, at least one support (4) which adapted for receiving said at least one object (2), for mounting the at least one support (4) on the base (3), and for fastening the at least one object (2) on the at least one support (4). The fastening device, firstly, includes at least one block (7), which equips the base (3), secondly, is adapted to secure the at least one block (7) to the base (3), and thirdly, is adapted for assembly of the at least one object (2), the at least one support (4), and the at least one block (7).

Abstract: A method of classifying terrain, terrain activity and materials through panchromatic imagery a module programmed to provide such classification and aerospace vehicles comprising such module is provided. Panchromatic images of known materials terrains and terrain activities are taken and processed to form a multiband texture cube, that due it amount of data, is stored as a computer data base. New panchromatic images of unclassified materials, terrains and/or terrain activities are processed and compared via computer with such database that allows for inexpensive, quick and efficient classification of such new images.

Abstract: An apparatus for preconditioning a power source of an electric aircraft is presented. The apparatus includes a power source of an electric aircraft, a computing device, and a user device. The computing device is configured to receive a flight plan, determine a predicted power usage model as a function of the flight plan, and initiate a power source modification on the electric aircraft as a function of the predicted power usage model. The user device is configured to display a flight performance infographic as a function of the predicted power usage model.

Abstract: An aroma container for adding an aroma substance to an air flow flowing through the aroma container comprises an upper wall (12), a lower wall (14) as well as at least one side wall (16, 18), which surrounds the aroma chamber, at least one air inlet opening (48) into the aroma chamber as well as at least one air outlet opening (24) from the aroma chamber, wherein an aroma substance, preferably in the form of an aroma concentrate, is present in the aroma chamber, the aroma substance being preferably applied to a carrier substance (42), wherein the aroma container further comprises a means for improved release of the aroma substance to the air flow flowing through the aroma container.

Abstract: An installation for supplying a fuel cell with hydrogen comprising a fuel cell, a liquefied hydrogen storage facility and a supply circuit that includes at least one upstream end connected to the storage facility and one downstream end connected to a fuel inlet of the fuel cell, the supply circuit including at least one system for heating hydrogen by heat exchange with a heat source and a set of control valves, the liquefied hydrogen storage facility being configured to keep the liquefied hydrogen in equilibrium with a gaseous phase at a determined nominal storage pressure of between 1.5 and 4.5 bar, the supply circuit including a buffer tank for pressurized gaseous hydrogen which is configured to store the hydrogen withdrawn from the storage facility and heated by the heating system, the set of valves being configured to accumulate pressurized gas in the buffer tank at a determined storage pressure of between 4 and 100 bar, for example between 6 and 8 bar.

Abstract: Disclosed is a device for liquefying a fluid, comprising a fluid circuit to be cooled, the device comprising a heat exchanger assembly in heat exchange with the fluid circuit to be cooled, at least one first cooling system in heat exchange with at least a portion of the heat exchanger assembly, the first cooling system being a refrigerator having a cycle for refrigerating a cycle gas mainly comprising helium, said refrigerator comprising in series in a cycle circuit: a mechanism for compressing the cycle gas, at least one member for cooling the cycle gas, a mechanism for expanding the cycle gas, and at least one member for reheating the expanded cycle gas, wherein the compression mechanism includes at least four compression stages in series composed of a centrifugal compressor assembly, the compression stages being mounted on shafts that are rotationally driven by a motor assembly, the expansion mechanism comprising at least three expansion stages in series composed of a set of centripetal turbines, the at le

Abstract: An air conditioning system includes an outdoor unit and an indoor unit. The outdoor unit includes a compressor, an outdoor heat exchanger, a first expansion valve, a third expansion valve, and a subcooling heat exchanger. The indoor unit includes an indoor heat exchanger and a second expansion valve. In a cooling mode, the outdoor unit is configured to adjust an opening degree of the first expansion valve according to a relationship between a first difference and a first preset value; adjust an opening degree of the second expansion valve according to a relationship between a second difference and a second preset value; and adjust an opening degree of the third expansion valve according to a relationship between a third difference and a third preset value.

Abstract: An electric vehicle charging connector including a charging connector. The charging connector including a direct current pin and an alternating current pin. The electric vehicle charging connector also including a coupling mechanism configured to: couple the charging connector to an electric vehicle, enable a flow of electricity from the charging connector to the electric vehicle, and disable the flow of electricity from the charging connector to the electric vehicle.

Abstract: Methods and systems for measuring the concentration of a light gas in a main flow stream are disclosed herein. The methods include calculating a control parameter as a function of the concentration of the light gas in the main flow stream; dividing a portion of the main flow stream to produce a feed stream; and separating the feed stream by selective permeation across a semi-permeable membrane to produce a permeate stream enriched in the light gas and a retentate depleted in the light gas. A ratio of the flow rate of the feed stream to the flow rate of the main flow stream may be increased or decreased according to the control parameter. In addition, an area of the semi-permeable membrane may be increased or decreased according to the control parameter.

Abstract: The invention generally relates to shape memory films that are tri-functionally crosslinked and that comprise multiple, non-terminal, phenylethynyl moieties. In addition, the present invention relates methods of fabricating such films. Due to the improved properties of such SMPs, the SMP designer can program in to the SMP thermomechanical property enhancements that make the SMP suitable, among other things, for advanced sensors, high temperature actuators, responder matrix materials and heat responsive packaging.