Abstract: A method for transceiving signals and a transceiver using the same are provided. The method includes: configuring a transmitting circuit to transmit a transmitting signal via a first transmitting channel of the transmitting circuit during a transmitting period of the transmitting signal; configuring a switch module to connect the first transmitting channel to a first transducer element of a probe during the transmitting period; and configuring the switch module to disconnect the first transmitting channel form the first transducer element and to connect the first transmitting channel to a second transducer element of the probe during the transmitting period.

Abstract: Various embodiments of the teachings herein include an additive manufacturing method. Some embodiments include: generating a model of a support member using a model of a printing member, wherein at least one portion of the support member is in contact with a lower part of the printing member, and a nitride layer is formed on a surface of the support member; introducing an inert gas into an additive manufacturing printing device, spreading a first material powder in a forming cylinder, performing laser scanning on the first powder using the model; and introducing an ammonia gas into the additive manufacturing printing device, spreading the first material powder in the forming cylinder in the additive manufacturing printing device, performing laser scanning on the first material powder, such that the first material powder is melted, and on the basis of the model of the support member, a nitride layer is formed.

Abstract: An electrochemical device includes a positive electrode plate and an electrolyte solution. The positive electrode plate includes a positive electrode current collector and a positive electrode active material layer provided on at least one surface of the positive electrode current collector. The positive electrode active material layer contains a positive electrode lithium supplement including one or more of Li2M1O2, Li2M2O3, Li3M3O4, Li5M4O4, and Li6M5O4. M1 includes one or more of Ni, Co, Fe, Mn, Zn, Mg, Ca, and Cu. M2 includes one or more of Mn, Sn, Mo, Ru, and Ir. M3 includes one or more of V, Nb, Cr, and Mo. M4 includes one or more of Fe, Cr, V, and Mo. M5 includes one or more of Co, V, Cr, and Mo. The electrolyte solution contains a lithium salt. A molarity A of the lithium salt satisfies 1.5 mol/L?A?4 mol/L.

Abstract: The present application provides a lithium ion battery, comprising an electrode assembly and an electrolyte comprising a fluorosulfonate and/or difluorophosphate substance. The lithium ion battery has a gas generation area coefficient during formation, defined as ?, with ?=M×S/200; wherein M is in the range of 5 mg/cm2-100 mg/cm2; S is the specific surface area of the negative electrode material on the negative electrode current collector and is in the range of 0.1 m2/g-10 m2/g; the lithium ion battery has a gas venting path coefficient defined as ?, with ?=100/L, wherein L is in the range of L?50 mm; the mass percentage content w % of the fluorosulfonate and/or difluorophosphate substance in the electrolyte and ? and ? meet the equation 0.01?w×?/??20.

Abstract: The invention discloses a photocured medical catheter hydrophilic lubricating coating and a preparation method thereof. The hydrophilic lubricating coating comprises a primer coating and a lubricating coating. The primer coating is attached to the surface of a device, and the lubricating coating is attached to the primer coating. The primer coating comprises 1-10 parts by weight of one or more polyester acrylates, 50-90 parts by weight of one or more solvents, 0.5-5 parts by weight of one or more photoinitiators, 0.5-2 parts by weight of one or more wetting agents and 0.5-5 parts by weight of one or more reactive (or active) diluents. The lubricating coating comprises 1-10 parts by weight of one or more water soluble macromolecules, 1-5 parts by weight of one or more crosslinking (or crosslinked) macromolecules, 0-1 part by weight of one or more photoinitiators, 0.1-1 part by weight of one or more surfactants and 50-98 parts by weight of one or more solvents.

Abstract: The present application provides an electrolyte, the electrolyte including a fluorinated metal salt with S?O or P?O; and a titanate with a structural formula Ti—(O—R1)4, where the R1 is selected from one or more of C1-C6 alkyl, C1-C6 halogenated alkyl, C2-C6 alkenyl, C2-C6 alkynyl or C1-C6 silyl, and a secondary battery including the electrolyte, a battery module, a battery pack and a power consumption apparatus.

Abstract: The present disclosure provides a fast charge long lifetime secondary battery, a battery module, a battery pack, and a power consumption device. Particularly, the present disclosure provides a secondary battery, comprising an electrode assembly and an electrolytic solution, the electrode assembly comprises a positive electrode plate, a negative electrode plate, and a separator, the positive electrode plate comprises a positive electrode tab, and the negative electrode plate comprises a negative electrode tab, wherein the positive electrode tab has the following temperature rise coefficient: ? = C 1 ? 0 ? S ? 1 where S1 is a total cross-sectional area of the positive electrode tab, in unit of mm2; C is capacity of the electrode assembly, in unit of A·h; the electrolytic solution contains a heat stable salt and an additive that inhibits decomposition of the lithium salt.

Abstract: This application provides a lithium-ion battery, including: an electrode assembly and an electrolytic solution. The lithium-ion battery may satisfy the following condition: 0.6???0.9, and 4?w×?/?1?25, where, ?=La/Lc, La is an arc length of a convex surface of the negative current collector corresponding to a concave surface of an innermost first circle of positive electrode in a jelly-roll structure of the electrode assembly, Lc is an arc length of a concave surface of an innermost first circle of positive current collector in the jelly-roll structure of the electrode assembly, and La and Lc are measured in mm; w is a percent of the first lithium salt LixR1(SO2N)xSO2R2 by mass in the electrolytic solution; and ?1 is a thickness of the metallic conductive layer in the positive current collector, measured in ?M.

Abstract: A lithium-ion secondary battery is provided, where an electrolyte solution of the lithium-ion secondary battery comprises a highly heat-stable salt (My+)x/yR1(SO2N?)xSO2R2, where the My+ is a metal ion, R1 and R2 are each independently a fluorine atom, an alkyl with 1-20 carbon atoms, a fluoroalkyl with 1-20 carbon atoms, or a fluoroalkoxy with 1-20 carton atoms, x is 1, 2, or 3, and y is 1, 2, or 3. A mass percent of the salt in the electrolyte solution is set as k2%; a temperature rise coefficient k1 of the positive electrode sheet satisfies 2.5?k1?32, where k1=Cw/Mc, Cw is a positive electrode material load per unit area (mg/cm2) on the surface of any side of the positive electrode current collector on which a positive electrode material layer is loaded, and Mc is a carbon content (%) of the positive electrode material layer; and the lithium-ion secondary battery satisfies 0.34?k2/k1?8.

Abstract: Provided are an electric motor, a laminated iron core, and a manufacturing method. In. an embodiment, the method includes S1: introducing inert gas into an additive manufacturing printing apparatus, pouring silicon steel metal particles into a fanning cylinder of the apparatus, and performing laser scanning on the silicon steel metal particles to gradually melt the silicon steel metal particles into at least one silicon steel metal layer; and S2: continuing to pour silicon steel metal particles into the forming cylinder, and stopping performing laser scanning on the silicon steel metal particles or reducing the laser power executing the laser scanning, such that the silicon steel metal particles do not entirely melt and form an insulating layer. Execution of steps S1 and S2 is alternated until a laminated iron core having a plurality of alternating silicon steel metal layers and insulating layers is formed.

Abstract: Provided are an electric motor, a laminated iron core, and a manufacturing method. In an embodiment, the method includes S1: introducing inert gas into an additive manufacturing printing apparatus, pouring silicon steel metal particles into a forming cylinder of the apparatus, and performing laser scanning on the silicon steel metal particles to gradually melt the silicon steel metal particles into at least one silicon steel metal layer; and S2: continuing to pour silicon steel metal particles into the forming cylinder, and stopping performing laser scanning on the silicon steel metal particles or reducing the laser power executing the laser scanning, such that the silicon steel metal particles do not entirely melt and form an insulating layer. Execution of steps S1 and S2 is alternated until a laminated iron core having a plurality of alternating silicon steel metal layers and insulating layers is formed.

Abstract: A manufacturing method is performed in an additive manufacturing printing apparatus. An embodiment of the manufacturing method includes: S1—feeding inert gas into the additive manufacturing printing apparatus, and performing laser scanning on silicon steel metal particles to start to melt the silicon steel metal particles from bottom to top layer by layer into a silicon steel metal layer; S2—feeding treatment gas into the additive manufacturing printing apparatus, performing laser scanning on the silicon steel particles again to enable the treatment gas to react with the molten silicon steel metal particles to finally form an insulating nitride layer, and alternately performing S1 and S2 until the laminated iron core of a structure having a plurality of alternate silicon steel metal layers and insulating nitride layers is formed. An embodiment of the present invention may manufacture a customized laminated iron core with a complex shape and good performance.

Abstract: The present application relates to a secondary battery, comprising: a positive electrode plate, a negative electrode plate, a separator disposed between the positive electrode plate and the negative electrode plate, and an electrolyte solution, the negative electrode plate including a negative electrode current collector and a negative electrode active material layer provided on at least one side of the negative electrode current collector, and the electrolyte solution including an organic solvent and a lithium salt, wherein the negative electrode active material comprises a core structure and a polymer network coating layer coated on at least a part of the surface of the core structure.

Abstract: Various examples are provided related to direct current circuit breakers and their control methods. In one example, among others, a hybrid direct current circuit breaker (DCCB) includes an ultrafast mechanical switch (UFMS) connected in series with a commutating switch (CS) or auxiliary circuit breaker (ACB); a main breaker (MB) including a series of ? semiconductor switching stages in parallel with the UFMS and CS or ACB; and control circuitry that can turn off individual switching stages in a defined order in response to opening contacts of the UFMS. The switching stages can be turned off based upon a dielectric strength across the contacts as they open. In another example, a method includes opening contacts of an UFMS connected in series with a CS or ACB; and turning off individual switching stages of a series of ? semiconductor switching stages connected across the UFMS and the CS or ACB.

Abstract: A 3-D printing method and a 3-D printout are provided. In an embodiment, the 3-D printing method includes laser-scanning a printing material according to a 3-D printing model so that the printing material starts to be sintered into a printout in a shape, layer by layer from the bottom up; and feeding a treatment gas into a 3-D printing device and laser-scan a local area of the printout so that the treatment gas reacts with the surface of the local area of the printout and a hardened layer is formed. The laser scanning and the feeding of the treatment gas are performed alternately until a printout with local hardened layers is formed. By adjusting the gas environment, the components can be manufactured by selective laser melting equipment to have a wear- and corrosion-resistant nitrided surface layer and keep the expected ductility of the central area.

Abstract: An ultrasound apparatus and a method of emitting plane wave are provided. The ultrasound apparatus includes an ultrasound probe, a transceiver circuit, a switch module and a processor. The ultrasound probe has a 1st to a Mth transducer elements for respectively emitting ultrasound beams to form the plane wave, and the transceiver circuit has a 1st to a Nth transceiving channels. M, N are positive integers, and M is a multiple of N. During a scanning period, the processor controls the switch module to initially and respectively connect the 1st-Nth transceiving channels to the 1st-Nth transducer elements, such that the 1st-Nth transducer elements successively emit the ultrasound beams. After the ultrasound beam is emitted by the Nth transducer element, the processor controls the switch module to respectively connect the 1st-Nth transceiving channels to the (N+1)th-(2N)th transducer elements, such that the (N+1)th-(2N)th transducer elements successively emit the ultrasound beams.

Abstract: An improved structure of an electronic lock includes an outside-door assembly, a lock middle, an inside-door assembly, and a latch. The outside-door assembly is mounted to an outer side of a door panel. The lock middle is connected to the outside-door assembly. The inside-door assembly is connected to the lock middle and is mounted to an inner side of the door panel. The latch is connected to the latch coupler. With a code entered, an electrically-driven valve of the lock middle causes a guide block and a projection block to extend outward to have an outside handle and the lock middle to synchronously operate for opening the door. Alternatively, a key may be used to open the door. If such a code and a key are both not available, the outside handle and the lock middle do not synchronously operate.

Abstract: An improved structure of an electronic lock includes an outside-door assembly, a lock middle, an inside-door assembly, and a latch. The outside-door assembly is mounted to an outer side of a door panel. The lock middle is connected to the outside-door assembly. The inside-door assembly is connected to the lock middle and is mounted to an inner side of the door panel. The latch is connected to the latch coupler. With a code entered, an electrically-driven valve of the lock middle causes a guide block and a projection block to extend outward to have an outside handle and the lock middle to synchronously operate for opening the door. Alternatively, a key may be used to open the door. If such a code and a key are both not available, the outside handle and the lock middle do not synchronously operate.

Abstract: The present invention relates to the technical field of pharmaceuticals and specifically describes an application of a 5-hydroxytryptamine receptor 1A in preparing a drug for portal hypertension. The present invention achieved a significant decrease in portal venous pressure in model rats with cirrhotic portal hypertension by means of an HTR1A inhibitor WAY100635 administered at 1 mg/kg/day by intraperitoneal injection or alverine administered at 15 mg/kg/day by oral gavage. A 5-hydroxytryptamine receptor 1A antagonist can be used to prepare an experimental drug for the treatment of cirrhotic portal hypertension. Furthermore, the 5-hydroxytryptamine receptor 1A antagonist can also be used to prepare drugs for symptoms of portal hypertension syndrome, such as esophageal and fundal varices, rupture and bleeding, ascites, or hepatic encephalopathy.

Abstract: A method for transceiving signals and a transceiver using the same are provided. The method includes: configuring a transmitting circuit to transmit a transmitting signal via a first transmitting channel of the transmitting circuit during a transmitting period of the transmitting signal; configuring a switch module to connect the first transmitting channel to a first transducer element of a probe during the transmitting period; and configuring the switch module to disconnect the first transmitting channel form the first transducer element and to connect the first transmitting channel to a second transducer element of the probe during the transmitting period.