Abstract: A landing zone arrangement is disclosed for aircraft capable of vertical take-off. The arrangement includes a plurality of segments that form a landing zone in an operating state, a storage space for at least partially storing the segments in a stored state, and a base with a rotatable rotor element in order to rotate the segments for transfer between the operating state and the stored state. The landing zone arrangement allows a lighter technical design as the individual segments are removably secured to the rotor element, and a securing unit of the arrangement is designed to fasten the removable segments to the rotor element for transfer into the operating state and to release this fastening for transfer into the stored state. A lifting unit is provided in order to move the removable segments in the direction of the rotor element when transferring into the operating state.

Abstract: Methods and systems for measuring pipe parameters using guided acoustic wave modes are provided. The method includes receiving data corresponding to an acoustic signal, wherein the data are obtained by transmitting an excitation pulse at a specified frequency and detecting the resulting acoustic signal using an acoustic transducer attached to the outer surface of the pipe wall. The method includes analyzing the data to identify guided acoustic wave modes including at least two of: a C-SH acoustic wave mode that travels within the pipe wall; a C-LT acoustic wave mode that travels within the near-surface region of the pipe wall; and/or a CA acoustic wave mode that travels within the pipe cavity. The method includes calibrating the parameter measurement using the C-SH acoustic wave mode and determining the parameter measurement based on the phase velocity and/or the amplitude of the C-LT acoustic wave mode and/or the CA acoustic wave mode.

Abstract: A vibration isolator cartridge can be configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile including a region of quasi-zero stiffness. The vibration isolator cartridge can include a housing. The vibration isolator cartridge can include a plunger. The plunger can be configured to be depressed toward a distal end portion of the housing. The vibration isolator cartridge can include a plurality of spring members operatively positioned within the housing between the plunger and the distal end portion of the housing. The plurality of spring elements can be arranged in a stack. The vibration isolator cartridge can be used to provide improved vibration isolation performance in various applications, such as a bicycle saddle.

Abstract: A positional lane scanner and method therefor includes a positional lane cargo scanning structure having a first frame portion, a second frame portion, and a top frame portion connected to define a passage lane for a cargo vessel. The first and second frame portions are located on opposite sides and cargo vessels pass therebetween. The first and second frame portions, or both, include a first housing portion and a scanning device mounted within the first housing portion. A lifting member is provided on the top frame portion facing outward, or if the lifting means is on a transport vehicle, such as a reach spreader, a pair of lifting beams may be arranged on the transport vehicle. The lift member removably connects with a boom portion of the transport vehicle for positioning and relocating the scanning structure to be disposed adjacent a cargo vessel lane.

Abstract: A system comprising: a suction line; a liquid ring pump coupled to the suction line, the liquid ring pump comprising a chamber and an impeller mounted within the chamber; a non-return valve arranged to permit fluid to flow into the chamber via the suction line and to prevent or oppose fluid flow out of the chamber to the suction line; a gas line coupled to the liquid ring pump such that a gas may flow into the liquid ring pump via the gas line, the gas line coupled to the liquid ring pump between the non-return valve and the chamber; a valve disposed on the gas line; and a controller configured to control the valve.

Abstract: Extensive deployment of interoperable distributed energy resources (DER) on power systems is increasing the power system cybersecurity attack surface. National and jurisdictional interconnection standards require DER to include a range of autonomous and commanded grid-support functions which can drastically influence power quality, voltage, and the generation-load balance. Investigations of the impact to the power system in scenarios where communications and operations of DER are controlled by an adversary show that each grid-support function exposes the power system to distinct types and magnitudes of risk. The invention provides methods for minimizing the risks to distribution and transmission systems using an engineered control system which detects and mitigates unsafe control commands.

Abstract: The invention belongs to the technical field of time synchronization of computer co-simulation, and particularly relates to a time consistency synchronization method for distributed simulation. According to the time consistency synchronization method, a most appropriate master clock is selected according to votes, and then the other clocks in a network are controlled to synchronize by using the master clock, so that the consistency of data of each node and a time-related event in time logic is ensured. Even if a certain simulation node goes down, influences on the other links of the whole system are relatively small, which can effectively perform decentration, ensure the time consistency to the greatest extent, and ensure the correctness and the scale of a whole distributed system.

Abstract: A vehicle remote control system includes a server including a transceiver and a controller. The transceiver is configured to receive location data from a vehicle and location data from a remote device. The controller is configured to receive an operating instruction signal from the remote device, the operating instruction signal including instructions to operate one or more components of the vehicle. A distance between the vehicle and the remote device is determined based on the location data from the vehicle and the location data from the remote device. The operating instruction signal is transmitted to the vehicle in response to a determination that the distance between the vehicle and the remote device is equal to or less than a corresponding threshold distance.

Abstract: A method may include: oxidizing iso-butane with oxygen to produce t-butyl hydroperoxide and t-butyl alcohol; dehydrating at least a portion of the t-butyl alcohol to produce di-tert-butyl ether and isobutylene; epoxidizing at least a portion of the isobutylene with the t-butyl hydroperoxide to produce isobutylene oxide and t-butyl alcohol; and carbonylating at least a portion of the isobutylene oxide with carbon monoxide to produce pivalolactone.

Abstract: A semiconductor device package and method for manufacturing the same are provided. The semiconductor device package includes a dielectric layer, an electronic component, a first conductive layer, and a conductive element. The dielectric layer has a first surface and a second surface opposite to the first surface. The electronic component is embedded in the dielectric layer. The first conductive layer is embedded in the dielectric layer and adjacent to the first surface of the dielectric layer. The conductive element is disposed on the first surface of the dielectric layer and in contact with the first conductive layer.

Abstract: A free piston generator based on a rigid synchronous transmission system is provided, which belongs to the technical field of power energy. The present disclosure solves the problems of low power generation efficiency and low stability of the existing free piston generator. The free piston generator based on the rigid synchronous transmission system includes a first linear generator set, a second linear generator set, a rigid synchronous transmission assembly, two high-pressure cylinders arranged at two ends of the first linear generator set, and two low-pressure cylinders arranged at two ends of the second linear generator set.

Abstract: A door component for pivoting a movable door of a motor vehicle has a drive with an electric drive motor in order to influence a pivoting of the door between a closed setting and an open setting. A position measure for an angular setting of the door leaf and a speed parameter for an angular speed of the door leaf are detected by a position sensor. During a pivoting of the door leaf with the speed parameter, an electrical setpoint current intensity for the electric drive motor is ascertained, and an associated setpoint voltage is set. Then the current intensity flowing through the drive motor is ascertained. The setpoint voltage is increased if the current intensity is lower than the electrical setpoint current intensity, and the setpoint voltage is decreased if the current intensity is higher than the electrical setpoint current intensity.

Abstract: An inorganic compound for a Li-ion conductor includes an oxyhalide compound with a chemical composition of MOX where M is at least one of Al, Sc, La, and Y, and X is at least one of F, Cl, Br, and I. Also, the oxyhalide compound has a thermal decomposition start temperature of the oxyhalide compound is greater than a thermal decomposition start temperature of FeOCl and a conductivity that is general equal to or greater than a conductivity of the FeOCl.

Abstract: A transfer device transfers a workpiece by a transfer motion which is based on a transfer individual phase signal synchronized with a master phase signal, and includes: a setting unit that sets a point on a trajectory of a transfer bar as a switching point of a timing switch, the point on the trajectory being separated from a reference point on the trajectory by a designated distance designated by a user, and the trajectory being based on the transfer motion; and a signal output unit that outputs a timing signal to an external device at a timing when the transfer bar reaches the switching point.

Abstract: Systems and methods to send or receive redundant Generic Object Oriented Substation Event (GOOSE) messages are described. An intelligent electronic device may obtain power system data from a power system. The IED may publish the power system data in a first GOOSE message and publish the same power system data in a second GOOSE message. The second GOOSE message may have different header information than the first GOOSE message to allow the subscriber to determine that the redundant GOOSE messages are both received. If the first and second GOOSE message are duplicates with identical header information but unique trailer information methods allow the subscriber to determine that the duplicate GOOSE messages are both received.

Abstract: Systems and methods are provided for direct conversion of methane and/or ethane to methanol. The methods can include exposing methane to an oxidant, such as O2, in a solvent at conditions that are supercritical for the solvent while having a temperature of 310° C. or less, or about 300° C. or less, or about 290° C. or less. The solvent can correspond to an electron donor solvent that, when in a supercritical state, can complex with O2. By forming a complex with the O2, the supercritical electron donor solvent can facilitate conversion of alkane to methanol at short residence times while reducing or minimizing further oxidation of the methanol to other products.

Abstract: The present disclosure provides a semiconductor device package. The semiconductor device package includes a substrate, a first module disposed on the substrate, a second module disposed on the substrate and spaced apart from the first module, and a conductive element disposed outside of the substrate and configured to provide a signal transmission path between the first module and the second module.

Abstract: This disclosure provides improved processes for converting benzene/toluene via methylation with methanol/dimethyl ether for producing, e.g., p-xylene. In an embodiment, a process utilizes a methylation catalyst system comprising a molecular sieve catalyst and an auxiliary catalyst. The auxiliary catalyst comprises a metal element selected from Group 2, Group 3, the lanthanide series, the actinide series, and mixtures and combinations thereof. The auxiliary catalyst may comprise the oxide of the metal element. Deactivation of the molecular sieve catalyst can be reduced with the inclusion of the auxiliary catalyst in the methylation catalyst system.