Abstract: The present application provides a heat pump system. The heat pump system comprises a main circulating refrigerant loop, an auxiliary circulating refrigerant loop, and a refrigerant management system; the main circulating refrigerant loop comprises a main compressor, a first main heat exchanger, a main throttling device, and a second main heat exchanger, the main compressor is configured to allow a refrigerant in the main circulating refrigerant loop to circulate in a main circulating refrigeration working condition flow direction or circulate in a main circulating heating working condition flow direction. The auxiliary circulating refrigerant loop comprises an auxiliary compressor, a first auxiliary heat exchanger, an auxiliary throttling device, and a second auxiliary heat exchanger; the auxiliary compressor is configured to allow a refrigerant in the auxiliary circulating refrigerant loop to circulate in an auxiliary circulating heating working condition flow direction.

Abstract: The invention relates to bogies for railway vehicles with at least two wheelsets mounted in axleboxes and at least one transverse member. The bogies are in particular characterized in that they have a lightweight design and can be produced at low cost. The axleboxes of a wheelset are articulated to the transverse member via two axle levers so that the axle levers form an H shape with the axleboxes and the transverse member. The transverse member has at least two torsion bars arranged in parallel to the axles of the wheelsets, said torsion bars being firmly connected to the transverse member. The torsion bars have spring levers so that the end portion of the spring lever not connected to the torsion bar acts upon the axlebox.

Abstract: A method, system and device for controlling a door of a railway vehicle are provided. The method comprises: a door control instruction sent by a transponder is received when a railway vehicle draws into the station, wherein the door control instruction is used for determining a door of the railway vehicle at a platform side; and the railway vehicle is controlled to open the door of the railway vehicle at the platform side according to the door control instruction, thereby solving the technical problem that the door of a railway vehicle at the non-platform side may be opened by mistake by a driver due to human factors because the door of the railway vehicle at the platform side is manually opened when the railway vehicle stops.

Abstract: A mold with cavities for nanoimprint lithography and a method of imprinting the same. The mold is a one-piece structure, including an upper mold and a lower mold which are welded together. The upper mold is evenly provided with a plurality of stepped holes. A plurality of grooves are provided at an upper surface of the lower mold. Both ends of each groove are respectively connected to an external high-pressure water pump and an external vacuum pump via pipelines. An airtight cavity is additionally provided at the interior of the mold to form a negative pressure in the cavity by vacuumizing during the imprint process. In the demolding, a crack is formed at the interface between the mold and the imprint resist by using water pressure and expands to the entire interface for the demolding of the imprinted structure.

Abstract: A direct absolute spectrometer includes: a first light source; a second light source; an optical combiner that produces dual light; an optical cell that receives the dual light; an electromagnetically induced transparent medium that is optically transparent to single photon light in a presence of pump light, such that output light is produced; and a filter that filters output light and provides EIT light free from, wherein electromagnetically induced transparent EIT light is a direct and absolute metric of a linewidth and a wavelength of single photon light such that the direct absolute spectrometer provides direct and absolute determination of the linewidth of the single photon light and direct and absolute determination of wavelength at a maximum of intensity of the single photon light.

Abstract: At least some embodiments of invention provide a method, device and system for link management in a Virtual Machine (VM) environment. The method includes: a heartbeat handshake link is established with a VM. After the heartbeat handshake link is successfully established, Link Aggregation Control Protocol (LACP) state information of a Physical Function (PF) of a plurality of a Network Interface Cards (NICs) is acquired. The LACP state information is sent to the VM through the heartbeat handshake link.

Abstract: A central traction device for a straddling monorail train includes a traction pin and a traction beam. A central sleeve is provided at the center of the traction beam, and the traction pin is mounted in the central sleeve. An inner cavity of the central sleeve has a corset-shaped structure having large diameters on an upper end and a lower end and a small diameter at a middle part, forming double tapered bevels, and a resilient rubber bush is provided between an inner wall of the central sleeve and the traction pin. The device has a simple and compact overall structure and facilitates connection and separation between the train body and the bogie; by providing the lift assembly, the traction device is fixedly connected to the frame, thus the traction device can be wholly lifted; and operation process and environment of raising and lowering the vehicle are improved.

Abstract: A direct absolute spectrometer includes: a first light source; a second light source; an optical combiner that produces dual light; an optical cell that receives the dual light; an electromagnetically induced transparent medium that is optically transparent to single photon light in a presence of pump light, such that output light is produced; and a filter that filters output light and provides EIT light free from, wherein electromagnetically induced transparent EIT light is a direct and absolute metric of a linewidth and a wavelength of single photon light such that the direct absolute spectrometer provides direct and absolute determination of the linewidth of the single photon light and direct and absolute determination of wavelength at a maximum of intensity of the single photon light.

Abstract: An anti-derailment safety device is in a shape of an inverted letter L and includes a transverse portion and a longitudinal portion perpendicular to the transverse portion at a side below the transverse portion; two sides of the transverse portion in a width direction of the transverse portion are each provided with an installation seat formed by a wing plate extending outwardly, and bolt holes are provided on the installation seat; and an inner side surface of the longitudinal portion is a stopping surface.

Abstract: Disclosed is an alarming and unlocking device. The alarming and unlocking device is installed in a passenger carriage and includes a control switch (10), a communication device, and a locking device, wherein the control switch (10) is provided with an alarming position (11) and an unlocking position (12); the control switch (10) is in signal connection with the communication device; when the control switch (10) is located at the alarming position (11), the communication device is started to receive and send a voice signal; the locking device is installed on a door so as to control the door to lock or unlock; the control switch (10) is in signal connection with the locking device; and when the control switch (10) is located at the unlocking position (12), the locking device performs an unlocking operation. According to the alarming and unlocking device, the problem that a structure for an alarming and unlocking device on a vehicle is relatively complex in the conventional art is solved.

Abstract: The invention relates to bogies for railway vehicles with at least two wheelsets mounted in axleboxes and at least one transverse member. The bogies are in particular characterized in that they have a lightweight design and can be produced at low cost. The axleboxes of a wheelset are articulated to the transverse member via two axle levers so that the axle levers form an H shape with the axleboxes and the transverse member. The transverse member has at least two torsion bars arranged in parallel to the axles of the wheelsets, said torsion bars being firmly connected to the transverse member. The torsion bars have spring levers so that the end portion of the spring lever not connected to the torsion bar acts upon the axlebox.

Abstract: This invention relates to the treatment of chronic kidney disease, including diabetic nephropathy, focal segmental glomerulosclerosis (FSGS), nephrotic syndrome, non-diabetic chronic kidney disease, renal fibrosis or acute kidney injury by the administration of an RGD mimetic integrin receptor antagonist, either as a single agent or in combination with other agents.

Abstract: A mold with cavities for nanoimprint lithography and a method of imprinting the same. The mold is a one-piece structure, including an upper mold and a lower mold which are welded together. The upper mold is evenly provided with a plurality of stepped holes. A plurality of grooves are provided at an upper surface of the lower mold. Both ends of each groove are respectively connected to an external high-pressure water pump and an external vacuum pump via pipelines. An airtight cavity is additionally provided at the interior of the mold to form a negative pressure in the cavity by vacuumizing during the imprint process. In the demolding, a crack is formed at the interface between the mold and the imprint resist by using water pressure and expands to the entire interface for the demolding of the imprinted structure.

Abstract: Disclosed is an alarming and unlocking device. The alarming and unlocking device is installed in a passenger carriage and includes a control switch (10), a communication device, and a locking device, wherein the control switch (10) is provided with an alarming position (11) and an unlocking position (12); the control switch (10) is in signal connection with the communication device; when the control switch (10) is located at the alarming position (11), the communication device is started to receive and send a voice signal; the locking device is installed on a door so as to control the door to lock or unlock; the control switch (10) is in signal connection with the locking device; and when the control switch (10) is located at the unlocking position (12), the locking device performs an unlocking operation. According to the alarming and unlocking device, the problem that a structure for an alarming and unlocking device on a vehicle is relatively complex in the conventional art is solved.

Abstract: A method, system and device for controlling a door of a railway vehicle are provided. The method comprises: a door control instruction sent by a transponder is received when a railway vehicle draws into the station, wherein the door control instruction is used for determining a door of the railway vehicle at a platform side; and the railway vehicle is controlled to open the door of the railway vehicle at the platform side according to the door control instruction, thereby solving the technical problem that the door of a railway vehicle at the non-platform side may be opened by mistake by a driver due to human factors because the door of the railway vehicle at the platform side is manually opened when the railway vehicle stops.

Abstract: A central traction device for a straddling monorail train includes a traction pin and a traction beam. A central sleeve is provided at the center of the traction beam, and the traction pin is mounted in the central sleeve. An inner cavity of the central sleeve has a corset-shaped structure having large diameters on an upper end and a lower end and a small diameter at a middle part, forming double tapered bevels, and a resilient rubber bush is provided between an inner wall of the central sleeve and the traction pin. The device has a simple and compact overall structure and facilitates connection and separation between the train body and the bogie; by providing the lift assembly, the traction device is fixedly connected to the frame, thus the traction device can be wholly lifted; and operation process and environment of raising and lowering the vehicle are improved.

Abstract: A mounting structure for equipment compartment bottom plate is provided. The bottom plate is detachably connected to a skeleton boundary beam of the equipment compartment. A sliding rail is fixedly connected to a side of the bottom plate where the bottom plate is lap-jointed to a skeleton lateral beam of the equipment compartment. One of the sliding rail and the skeleton lateral beam is provided with a recess and the other is provided with a protrusion engaged with the recess. In the mounting structure, the connection of the bottom plate and the skeleton lateral beam is achieved by the engagement of the recess and the protrusion. Therefore, connecting pieces for connecting the bottom plate and the skeleton lateral beam are removed and the number of the connecting pieces is significantly reduced.

Abstract: A bogie for a high-speed railway vehicle includes a wheel set, an axle box, a primary spring suspension device, a frame, a secondary spring suspension device and a foundation braking device. A wheel of the wheel set has an LMA wheel tread. The foundation braking device is mounted by a three-point hitch structure. The axle box is a structure which is separatable in a vertical direction, and an off-line safety protecting device is mounted at a lower portion of the axle box. A traction rod of the secondary spring suspension device is a single traction rod. A center pin is provided with an integral hoisting device. Two anti-yaw dampers, as a group, are arranged at either side of the secondary spring suspension device, and the two anti-yaw dampers have the same damping coefficient.

Abstract: This invention relates to the treatment of chronic kidney disease, including diabetic nephropathy, focal segmental glomerulosclerosis (FSGS), nephrotic syndrome, non-diabetic chronic kidney disease, renal fibrosis or acute kidney injury by the administration of an RGD mimetic integrin receptor antagonist, either as a single agent or in combination with other agents.

Abstract: At least some embodiments of invention provide a method, device and system for link management in a Virtual Machine (VM) environment. The method includes: a heartbeat handshake link is established with a VM. After the heartbeat handshake link is successfully established, Link Aggregation Control Protocol (LACP) state information of a Physical Function (PF) of a plurality of a Network Interface Cards (NICs) is acquired. The LACP state information is sent to the VM through the heartbeat handshake link.