Abstract: An electrically propelled towing apparatus includes a housing, in the housing being provided a reel, a stator, and a rotor configured to drive the reel; a mounting cavity is defined in the housing; and the stator is exposed and fixed in the mounting cavity. With elimination of the conventional housing of drive motor, the invention improves heat-dissipation effect.

Abstract: A method for blockchain-based time stamping for digital signature is disclosed. The method includes two participants: a signer who signs a message, a verifier who verifies the message. In the method, the signer obtains hash values of a certain number of latest confirmed blocks in blockchain, binds these hash values and the message together to be a new message. The signer then generates a signature of the new message and inserts identification data of this signature and the new message into a transaction of blockchain. This method ensures that the generation time of the signature is prior to the generation time of the block which contains the signature and, at the same time, is after the generation time of the blocks whose hash values are included in the signature, which produces an accurate time interval for the digital signature.

Abstract: The present invention discloses a rolling-bulging forming hydraulic machine for tubular products, which includes a frame. The frame is provided with an upper rolling mechanism, a lower rolling mechanism, a fixed liquid bulging hydraulic cylinder and a movable liquid bulging hydraulic cylinder. The upper rolling mechanism and the lower rolling mechanism are arranged oppositely, and the upper rolling mechanism and the lower rolling mechanism are used to roll surfaces of a to-be-machined tubular product. The fixed liquid bulging hydraulic cylinder and the movable liquid bulging hydraulic cylinder are arranged oppositely, and the fixed liquid bulging hydraulic cylinder and the movable liquid bulging hydraulic cylinder are used to perform hydraulic bulging on the to-be-machined tubular product.

Abstract: A winch integrated with a permanent magnet brushless motor and a controller includes a brushless motor and a controller. The brushless motor includes a stator having a wire coil, and a motor bracket. The stator is fixedly provided in the motor bracket. A rotor and a rotating shaft fixed in a rotor center are provided inside the stator. The rotating shaft is rotatably connected to the motor bracket, one end of the rotating shaft is fixedly connected with a magnet mount, and a cylinder magnet is mounted in the magnet mount. The controller includes a control circuit board fixed to one end of the motor bracket proximal to the cylinder magnet. A sensor chip for angle sensing in conjunction with the cylinder magnet is provided on the control circuit board.

Abstract: A miniature handheld electric traction device including a shell, a power supply part, a power motor, a reduction gear set, a braking part and a winding drum, wherein the power motor, the reduction gear set and the winding drum are arranged in the shell; the power motor is linked with the winding drum through the reduction gear set; a surface of the winding drum is wound with a traction rope; the reduction gear set includes a planetary gear; the sun gear of the planetary gear is coaxial with the winding drum; the power motor or the motor shaft of the power motor is inserted into the inner ring of the winding drum; the motor shaft is linked with the planetary gear.

Abstract: A device for strengthening a straight pipe, including a first positioning mold, a second positioning mold, a split mold, a rounding mold, a first cavity and a second cavity. A method for strengthening a straight pipe is further provided. The split mold is adjusted to position the pipe. The pipe is inserted into the first and second positioning molds. First and second sealing rings are arranged in an inner cavity of the pipe. Hydraulic oil is injected into the first cavity to expand the pipe to perform an expanding deformation. When the hydraulic oil is unloaded, the split mold moves towards an axis of the first positioning mold to perform a reducing deformation. After the expanding and reducing deformations, the pipe is transported into the rounding mold, and hydraulic oil is injected into the second cavity to expand the pipe to perform the rounding.

Abstract: A device for strengthening a straight pipe, including a first positioning mold, a second positioning mold, a split mold, a rounding mold, a first cavity and a second cavity. A method for strengthening a straight pipe is further provided. The split mold is adjusted to position the pipe. The pipe is inserted into the first and second positioning molds. First and second sealing rings are arranged in an inner cavity of the pipe. Hydraulic oil is injected into the first cavity to expand the pipe to perform an expanding deformation. When the hydraulic oil is unloaded, the split mold moves towards an axis of the first positioning mold to perform a reducing deformation. After the expanding and reducing deformations, the pipe is transported into the rounding mold, and hydraulic oil is injected into the second cavity to expand the pipe to perform the rounding.

Abstract: The present invention discloses a rolling-bulging forming hydraulic machine for tubular products, which includes a frame. The frame is provided with an upper rolling mechanism, a lower rolling mechanism, a fixed liquid bulging hydraulic cylinder and a movable liquid bulging hydraulic cylinder. The upper rolling mechanism and the lower rolling mechanism are arranged oppositely, and the upper rolling mechanism and the lower rolling mechanism are used to roll surfaces of a to-be-machined tubular product. The fixed liquid bulging hydraulic cylinder and the movable liquid bulging hydraulic cylinder are arranged oppositely, and the fixed liquid bulging hydraulic cylinder and the movable liquid bulging hydraulic cylinder are used to perform hydraulic bulging on the to-be-machined tubular product.

Abstract: A method of forming a cylinder by spinning. A cylindrical blank is placed at a geometric center of a lower mold cavity, where a bottom of the lower mold cavity is provided with a straight hole, and a blank block is provided at the straight hole. The lower mold cavity is fixed on a rotating worktable such that the blank is directly below an upper indenter. The indenter is driven by an extruder to move vertically downwards to extrude the cylindrical blank. Meanwhile, the lower mold cavity is driven by the worktable to uniform rotate. The intender is kept still, and the lower mold cavity is continuously driven to rotate. The lower mold cavity moves vertically upwards to process an outer surface of the blank by rotation of a petal-shape inner wall. The formed cylinder is separated from the lower mold cavity to obtain the desired cylinder.

Abstract: A method of forming a cylinder by spinning. A cylindrical blank is placed at a geometric center of a lower mold cavity, where a bottom of the lower mold cavity is provided with a straight hole, and a blank block is provided at the straight hole. The lower mold cavity is fixed on a rotating worktable such that the blank is directly below an upper indenter. The indenter is driven by an extruder to move vertically downwards to extrude the cylindrical blank. Meanwhile, the lower mold cavity is driven by the worktable to uniform rotate. The intender is kept still, and the lower mold cavity is continuously driven to rotate. The lower mold cavity moves vertically upwards to process an outer surface of the blank by rotation of a petal-shape inner wall. The formed cylinder is separated from the lower mold cavity to obtain the desired cylinder.

Abstract: A miniature handheld electric traction device including a shell, a power supply part, a power motor, a reduction gear set, a braking part and a winding drum, wherein the power motor, the reduction gear set and the winding drum are arranged in the shell; the power motor is linked with the winding drum through the reduction gear set; a surface of the winding drum is wound with a traction rope; the reduction gear set includes a planetary gear; the sun gear of the planetary gear is coaxial with the winding drum; the power motor or the motor shaft of the power motor is inserted into the inner ring of the winding drum; the motor shaft is linked with the planetary gear.

Abstract: A system may include a first light source configured to generate a first beam of light at a first wavelength; a second light source configured to generate a second beam of light at a second wavelength; a third light source configured to generate a third beam of light at a third wavelength; and a fourth light source configured to generate a fourth beam of light at a fourth wavelength. The system may also include a thin-film filter, a first polarization beam splitter (PBS), a wave plate and a second PBS. The thin-film filter, the first PBS, the wave plate, and the second PBS may be configured to combine the first beam, the second beam, the third beam and the fourth beam into a combined beam of light.

Abstract: A system may include a first light source configured to generate a first beam of light at a first wavelength; a second light source configured to generate a second beam of light at a second wavelength; a third light source configured to generate a third beam of light at a third wavelength; and a fourth light source configured to generate a fourth beam of light at a fourth wavelength. The system may also include a thin-film filter, a first polarization beam splitter (PBS), a wave plate and a second PBS. The thin-film filter, the first PBS, the wave plate, and the second PBS may be configured to combine the first beam, the second beam, the third beam and the fourth beam into a combined beam of light.

Abstract: The present invention is a kit and method for isolating and quantitating miRNA and to the use of such methods in the diagnosis and prognosis of disease.

Abstract: The present invention is a kit and method for isolating and quantitating miRNA and to the use of such methods in the diagnosis and prognosis of disease.

Abstract: The present invention relates to a vascular stent that includes an expandable stent defining an interior compartment, a first polymeric layer exposed to the interior compartment defined by the stent, the first layer comprising an agent that promotes re-endothelialization, an agent that inhibits thrombosis, or a combination thereof, and a second polymeric layer at least partially external of the stent, the second layer being adapted for contacting a vascular surface and being characterized by pores that are substantially impermeable to vascular smooth muscle cell migration. Method of making and using the vascular stent are also disclosed.

Abstract: The present invention relates to a vascular stent that includes an expandable stent defining an interior compartment, a first polymeric layer exposed to the interior compartment defined by the stent, the first layer comprising an agent that promotes re-endothelialization, an agent that inhibits thrombosis, or a combination thereof, and a second polymeric layer at least partially external of the stent, the second layer being adapted for contacting a vascular surface and being characterized by pores that are substantially impermeable to vascular smooth muscle cell migration. Method of making and using the vascular stent are also disclosed.

Abstract: The phospholipid growth factor lysophosphatidic acids (LPAs) containing unsaturated fatty acids (18:1, 18:2 and 20:4) and fatty alcohols containing hydrocarbon chains with more than 4 carbons were capable of inducing a rapid formation of neointima, an initial step in the development of atherosclerotic plaque. LPAs with saturated fatty acids did not induce neointima formation. A Peroxisome Proliferator-Activated Receptors gamma (PPAR&ggr;)-specific agonist Rosiglitasone also induced a profound formation of neointima. GW9662, a selective and irreversible antagonist of PPAR&ggr;, abolished LPA- and Rosiglitazone-induced neointima formation, indicating that LPA-induced neointima formation requires the activation of PPAR&ggr;. These data suggest that LPA analogs that bind to but do not activate downstream signaling of PPAR&ggr; or antagonists of PPAR&ggr; that inhibit PPAR&ggr; signaling would be useful in the prevention and/or treatment of neointima formation and atherosclerosis.

Abstract: Polypeptide and peptide fragments of CD9 as well as antibodies raised against those fragments of CD9. Uses of polypeptide and peptide fragments of CD9, antibodies, and inhibitors of CD9-related kinases include modifying cell behavior such as adhesion, motility, proliferation, survival, cell spreading, invasiveness, pericellular FN matrix assembly, and cell-to-cell interaction.