Abstract: An electrical propulsion system for a vertical take-off and landing (VTOL) aircraft comprises an electrical motor assembly and an inverter assembly. The inverter assembly comprises a housing, a capacitor assembly, at least one printed circuit board assembly (PCBA), and a plurality of positioning pins. The capacitor assembly comprises a center hole, at least one capacitor, a capacitor housing having at least one busbar, and a plurality of through holes in the capacitor housing. The capacitor assembly and the at least one PCBA are positioned inside the housing. The plurality of positioning pins pass through the through the plurality of through holes of the capacitor housing and the at least one PCBA and are connected to the housing.

Abstract: A frequency multiplier circuit includes a first multiplier circuit to generate a first digital value representing a received reference signal having a reference frequency and reference phase, the multiplier circuit to multiply the first digital value by a multiplier value. Comparison circuitry compares the first digital value to an output digital value representing an output signal having an output frequency and an output phase, the comparison circuitry to generate an error signal based on the comparison. A programmable loop filter generates a control signal based at least in part on the error signal. A frequency generation circuit produces the output signal having the output frequency and phase. A phase-to-digital converter generates and feeds the output digital value to the phase comparison circuitry. A programmable transition controller controls a transitioning frequency relationship between a first signal frequency of a first locked output signal and a desired second signal frequency.

Abstract: In various examples, interactive systems that use neural networks to determine financial investment predictions or recommendations are presented. Systems and methods are disclosed that determine financial predictions or recommendations associated with one or more investments using a neural network(s). The financial predictions may include a predicted movement of an investment (e.g., extremely down, down, preserved, up, extremely up, etc.), a predicted price of an investment (e.g., a future stock price, etc.), a specific investment for a user to buy/sell/trade, and/or so forth. In some examples, the systems and methods may include an interactive system(s), such as a dialogue system(s), that interacts with users to provide the financial predictions.

Abstract: An apparatus including: a housing configured for installation in a landfill; a differential pressure sensor and at least one gas sensor in the housing; and a first valve configured to control landfill gas (LFG) flow to the at least one gas sensor, wherein the first valve is configured to open when the differential pressure sensor detects a selected pressure difference or pressure difference change between the atmospheric air pressure and the LFG pressure.

Abstract: In various examples, interactive systems that use neural networks to determine financial investment predictions or recommendations are presented. Systems and methods are disclosed that determine financial predictions or recommendations associated with one or more investments using a neural network(s). The financial predictions may include a predicted movement of an investment (e.g., extremely down, down, preserved, up, extremely up, etc.), a predicted price of an investment (e.g., a future stock price, etc.), a specific investment for a user to buy/sell/trade, and/or so forth. In some examples, the systems and methods may include an interactive system(s), such as a dialogue system(s), that interacts with users to provide the financial predictions.

Abstract: An inflation pump connector includes a housing a sliding groove extending along a longitudinal axis and a pressing device slidably received in the sliding groove. The pressing device includes an airtight ring and a clamping member. The clamping member includes a base and a first claw. The first claw includes a first clamping arm, a first pressing portion, a second clamping arm, and a first hollow portion. The first clamping arm is connected to the base. The first pressing portion is connected to an end of the first clamping arm opposite to the base. The second clamping aim is connected to the first pressing portion. The first hollow portion is disposed between the first clamping arm and the second clamping arm. The first pressing portion is movable towards the longitudinal axis and to squeeze and deform the airtight ring.

Abstract: Techniques and systems are provided for training a machine learning model using different datasets to perform one or more tasks. The machine learning model can include a first sub-module configured to perform a first task and a second sub-module configured to perform a second task. The first sub-module can be selected for training using a first training dataset based on a format of the first training dataset. The first sub-module can then be trained using the first training dataset to perform the first task. The second sub-module can be selected for training using a second training dataset based on a format of the second training dataset. The second sub-module can then be trained using the second training dataset to perform the second task.

Abstract: A relief device in air pump includes a main body defining an interior space and a discharge passage fluidly communicating with the interior space. The discharge passage is selectively closed and opened by a valve device. The valve device is movable in the discharge passage. The valve device includes a first sealing portion and a second sealing portion selectively engaging with the discharge passage. The valve device is movable between a first position in which one of the first and the second sealing portions engages with the discharge passage and a second position in which the other of the first and the second sealing portion engages with the discharge passage. The discharge passage has a length measuring from the first end to the second end thereof, which is smaller than a length which measures a separation distance between the first and the second sealing portions.

Abstract: An electrical propulsion system for a vertical take-off and landing (VTOL) aircraft comprises an electrical motor assembly and an inverter assembly. The inverter assembly comprises a housing, a capacitor assembly, at least one printed circuit board assembly (PCBA), and a plurality of positioning pins. The capacitor assembly comprises a center hole, at least one capacitor, a capacitor housing having at least one busbar, and a plurality of through holes in the capacitor housing. The capacitor assembly and the at least one PCBA are positioned inside the housing. The plurality of positioning pins pass through the through the plurality of through holes of the capacitor housing and the at least one PCBA and are connected to the housing.

Abstract: Provided herein are nucleic acid trans-splicing molecules (e.g., pre-mRNA trans-splicing molecules (RTMs); RNA exon editing molecules) capable of correcting mutations in the ABCA4 gene. Such molecules are useful in the treatment of disorders such as ABCA4-associated retinal dystrophies (e.g., Stargardt Disease or cone-rod dystrophy). Also described herein are methods of using the nucleic acid trans-splicing molecules described herein to correct mutations in ABCA4, thereby treating disorders associated with mutations in ABCA4 and use of the nucleic acid trans-splicing molecules described herein for treating disorders associated with mutations in ABCA4 and in the preparation of medicaments for the treatment of disorders associated with mutations in ABCA4.

Abstract: The invention provides compounds having Formula (I): or a pharmaceutically acceptable salt thereof, as well as pharmaceutical compositions comprising the same, processes for their preparation, and methods of treating and preventing HIV infection by their administration.

Abstract: Disclosed are compounds of formula (Ia) or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of formula (Ia) and methods of using the same for treating cancer or a respiratory inflammatory disease and inhibiting arginase: wherein R1 is —NHR1a; R1a is —H or —C(O)CH(R1b)NHR1c; and R1b is selected from —H, —(C1-C4) alkyl and CH2OR1d and R1c is —H; or R1b and R1c, together with the atom to which they are attached, form a 5-membered heterocyclic ring; and R1d is H or —CH3.

Abstract: A valve connector for a high pressure air pump includes an outer sleeve having opposite first and second ends. The outer sleeve includes a coupling hole extending along a rotating axis and a receiving space intercommunicating with the coupling hole and located adjacent to the first end of the outer sleeve. An abutting member includes an abutting end received in the receiving space and a connecting end opposite to the abutting end. The abutting member includes an inlet passageway intercommunicating with the abutting end and the connecting end. An outer periphery of an airtight member about the rotating axis slidably abuts and is in airtight contact with an inner periphery of the receiving space. The airtight member is movable toward the first end or the second end. The airtight end face is configured to be biased toward the first end by air current entering from the inlet passageway.

Abstract: A floor pump includes an inflation device having a pump, a seat, and a pressure gauge. The seat is connected to a lower edge of the pump. The pressure gauge is connected between two ends of the pump. A base is pivotably connected to the seat and is movable between an extended position and a first folded position. The base includes first and second footrest portions located on two opposite sides of the seat. When the base is in the extended position, both the first footrest portion and the second footrest portion are not located below the pressure gauge. When the base is in the first folded position, the first footrest portion is located below the pressure gauge.

Abstract: A portable air pump includes an inflating unit and a connection unit. The inflating unit includes a cylinder and a joint portion. The connection unit includes a body, a valve connecting assembly, and a valve seat. The body has an axial hole and a joint hole communicating with the axial hole. The valve connecting assembly is arranged through the axial hole and includes a first connecting hole for connecting a Schrader valve, a second connecting hole for connecting a Presta valve, and a through hole communicating with the axial hole. The valve seat is movably arranged in the through hole for abutting the Schrader valve or the Presta valve. The joint hole, and one of the first and second connecting holes are detachably connected to the joint portion.

Abstract: A portable air pump includes an inflation assembly, a head seat pivotally connected to the inflation assembly, a pressure gauge disposed in the head seat, a connection assembly pivotally connected to the inflation assembly, and an axial member. The inflation assembly includes a cylinder and a piston rod moveable relative to the cylinder to compress the air inside the cylinder. One end of the head seat is provided with the containing groove, and another end of the head seat is provided with a pedal portion. The connection assembly is adapted to connect with an air-inflatable object. The axial member is mounted through the inflation assembly and the head seat and is connected to the connection assembly. The axial member is provided with an airflow channel communicating with the cylinder, the containing groove, and the connection assembly.

Abstract: A floor pump includes a base, a first cylinder, a second cylinder, an air tube, a handle and an air release device. The first cylinder and the air tube unidirectionally communicate with the base. The second cylinder is movably connected within the first cylinder and has a first piston. The air tube is disposed in the second cylinder and has a second piston. The handle is connected to the second cylinder. The air release device is disposed in the handle and includes a switcher and an air release valve assembly configured to be pressed by the switcher to move relative to a through hole of the handle to cause the second cylinder selectively communicates with the outside of the floor pump.

Abstract: An inflation pump connector includes a housing a sliding groove extending along a longitudinal axis and a pressing device slidably received in the sliding groove. The pressing device includes an airtight ring and a clamping member. The clamping member includes a base and a first claw. The first claw includes a first clamping arm, a first pressing portion, a second clamping arm, and a first hollow portion. The first clamping arm is connected to the base. The first pressing portion is connected to an end of the first clamping arm opposite to the base. The second clamping aim is connected to the first pressing portion. The first hollow portion is disposed between the first clamping arm and the second clamping arm. The first pressing portion is movable towards the longitudinal axis and to squeeze and deform the airtight ring.

Abstract: A variable-pressure air pump includes a first cylinder with a first chamber and a second cylinder with a second chamber movably connected with one another. The second chamber fluidly communicable with the outside of the variable-pressure air pump selectively. A discharge device includes a connecting member and a switch movably connected with one another. The connecting member defines at least one discharge hole fluidly connecting with the second chamber. The switch has at least one flow guide portion and at least one blocking portion. The switch is movable between a first position in which the at least one flow guide portion is adjacent and opens to the at least one discharge hole and a second position in which the at least one blocking portion is adjacent to and blocks the at least one discharge hole.

Abstract: A pressure gauge adapted to be mounted in a containing recess of an air pump includes a housing arranged in the containing recess, a driving member movably arranged in the housing, a biasing member biasing the driving member toward the housing, a driven member configured to be driven to rotate by the driving member, a pointer needle connected with the driven member, a scale plate disposed between the driven member and the pointer needle, and a guiding member arranged between the housing and the driving member. The guiding member is configured to contact at least one of the housing and the driving member to remain the driving member moving relative to the housing in a straight direction.