Abstract: Disclosed are a wearable device, a signal processing method and a wearable system, the wearable device includes a receiving electrode and a control circuit of the wearable device. The receiving electrode can receive an excitation signal sent by a transmitting wearable device through the skin of the user. The control circuit of the wearable device is used to obtain the present skin impedance of the user through the receiving electrode and adjust the gain of the excitation signal; and when the excitation signal is received, the excitation signal is amplified based on the adjusted gain to determine the present click position of the user.

Abstract: A display panel comprises a driving substrate (1), a light-emitting layer (2) and a light guide layer (3); the light-emitting layer (2) is arranged on one side of the driving substrate (1) and comprises a plurality of front light-emitting units (21) and a plurality of rear light-emitting units (22), each of the rear light-emitting units (22) comprising a light source part (221) and a light extracting part (222), and the front light-emitting units (21) and the light source parts (221) being configured for emitting light towards a side away from the driving substrate (1); and the light guide layer (3) comprises a plurality of light guide parts (31), each light guide part (31) being configured to guide light emitted by the light source part (221) of a corresponding rear light-emitting unit (22) to the light extracting part (222).

Abstract: Provided in the present disclosure is a method of heat treating a high-strength steel, wherein the high-strength steel comprises, by weight: 0.30-0.45% C, 1.0% or less Si, 0.20-2.5% Mn, 0.20-2.0% Cr, 0.15-0.50% Mo, 0.10-0.40% V, 0.2% or less Ti, 0.2% or less Nb, and a balance of Fe and other alloy elements and impurities, wherein the above alloy elements make Eq(Mn) according to the following formula (1) no less than 1.82, which method comprises the steps of 1) austenitizing; 2) carbide precipitation; and 3) tempering. The heat-treated steel in accordance with the present invention has high strength, high ductility and high toughness at the same time, especially improved reduction in area of tensile sample, so that it is particularly suitable for preparing spring members for vehicle suspension. Eq(Mn)=Mn+0.26Si+3.50P+1.30Cr+2.

Abstract: A chip structure includes a chip wafer unit and a color conversion substrate unit disposed on a light-exit side of the chip wafer unit. The chip wafer unit includes a light-emitting layer and an electrode layer sequentially stacked in a first direction. The light-emitting layer includes light-emitting portions. Each light-emitting portion includes at least two light-emitting sub-portions. The electrode layer includes a cathode, connection electrodes, and anodes in one-to-one correspondence with the light-emitting portions. The at least two light-emitting sub-portions are sequentially connected through at least one connection electrode. Among the at least two light-emitting sub-portions sequentially connected, a first one light-emitting sub-portion is a first selected light-emitting sub-portion, and a last one light-emitting sub-portion is a second selected light-emitting sub-portion.

Abstract: An airway structure, a cylinder cover and a Miller-profile engine are provided. The airway structure includes an intake duct and an intake valve arranged on an intake side, and an exhaust duct and an exhaust side roof arranged on an exhaust side. An angle of an axis of an intake valve stem relative to an assembly bottom surface of the cylinder cover is a1; an angle between a revolution cone surface of an intake valve disc and the axis of the intake valve stem is a2, an angle between a plane where the exhaust side roof is located and the assembly bottom surface is a3, a lower guide surface of the intake duct close to an intake throat is inclined downward at an angle of a4 relative to the assembly bottom surface. The airway structure satisfies: a3-3°?a1-a2?a3+3°; and/or, a4-3°?a1-a2?a4+3°.

Abstract: The present invention relates to a bioink for 3D printing, the preparation method, and the usage. Such bioink is a gel made of ?-zein, porogen by 0-10% of the weight of zein, ethanol and water. The preparation method consists of: 10-50% zein is dissolved into an aqueous solution containing 40-90% (v/v) of ethanol, then, the porogen by 0-10% of the weight of zein is added, and then, this solution is allowed to stand at 5-95° C. for 1-10 days, or stirred for 30 min-24 hours, and thus, the bioink for 3D printing can be obtained. The conditions applied to prepare such bioink are mild and the method adopted is easy to operate, in addition, the said bioink for 3D printing has good mechanical properties and biocompatibility, which can be applied in the field of biomedicine for preparing tissue engineered substitutes and hemostatic materials by 3D printing at room temperature.

Abstract: The present application provides a process for preparing an epitaxy wafer, and an epitaxy wafer prepared therefrom. The process comprises: step S1: providing a semiconductor substrate wafer, conducting an epitaxy process and forming an epitaxy layer on the wafer; and step S2: conducting a thermal treatment to the wafer to eliminate the haze pattern of the epitaxy layer. According to the process, the thermal treatment after the epitaxy process can facilitate the orientation of atoms on the wafer surface toward the lowest energy orientation, so that the atoms of the epitaxy layer arrange and accumulate uniformly. Therefore, the haze pattern on the wafer surface can be eliminated.

Abstract: This application provides an epitaxial wafer processing method, the processing method comprises providing an epitaxial wafer; measuring the flatness of the epitaxial wafer; performing vapor phase etching for the epitaxial wafer not meet the standard; growing epitaxial layer on the epitaxial wafer after the vapor phase etching. Compared with the traditional polishing rework process, the vapor phase etching for the epitaxial wafer of this application is much simpler and faster, therefore it can improve the production yield.

Abstract: Automatically stretchable folding spectacles, comprising: a first rim, with a first lens being provided within the first rim; a second rim, with a second lens being provided within the second rim; a first leg; and a second leg, wherein the first rim and the first leg are elastically connected via a first elastic member; the second rim and second leg are elastically connected via a second elastic member; a middle beam mechanism is provided between the first rim and second rim; and a locking mechanism is provided between the first leg and the second leg, which makes the spectacles capable of keeping a folded state after the spectacles are completely folded. The wearer needs only to press the locking mechanism with one hand, and the whole spectacles will stretch naturally and exhibit an available state under the action of the tension of the elastic members.

Abstract: A hair styler is used for conditioning, drying, and curling hair, comprising a cylindrical hair styler body with a hair curling lever on the hair styler. A handle is coaxially provided on one end of the hair styler body. A micro motor is provided in the handle. The said micro motor drives the hair styler body to relatively rotate about the handle alongside its axis. The handle is disposed of control switch controlling rotation of control motor; the heat generated by energization of the hair styler body or that is set up in the hair styler body directly heats up the electric heater adjacent to the hair styler body. The invention features advantages such as easy operation as well as functions of hair curling, drying, conditioning, and scalp care.

Abstract: Automatically stretchable folding spectacles, comprising: a first rim, with a first lens being provided within the first rim; a second rim, with a second lens being provided within the second rim; a first leg; and a second leg, wherein the first rim and the first leg are elastically connected via a first elastic member; the second rim and second leg are elastically connected via a second elastic member; a middle beam mechanism is provided between the first rim and second rim; and a locking mechanism is provided between the first leg and the second leg, which makes the spectacles capable of keeping a folded state after the spectacles are completely folded. The wearer needs only to press the locking mechanism with one hand, and the whole spectacles will stretch naturally and exhibit an available state under the action of the tension of the elastic members.