Abstract: A computerized simulation validating method for a full-scale distribution network single phase-to-ground fault test is implemented by simulating a full-scale test system with external quantities being controlled to be conformant and validating the full-scale distribution network single phase-to-ground fault test based on a conformance check result between the internal quantities of the field testing and the internal quantities of the simulation testing. The simulation validating method for a full-scale distribution network single phase-to-ground fault test improves normalization and conformance of the full-scale distribution network ground fault test. The computerized simulation validating system, apparatus, and medium for a full-scale distribution network single phase-to-ground fault test also achieve the benefits noted above.

Abstract: The present disclosure provides a method for separating a neural crest derived cell from peripheral blood. In the present disclosure, a mononuclear cell is separated from the peripheral blood and then directly cultured, thereby maximizing use of a neural crest stem cell with a differentiation potential to avoid loss of the neural crest stem cell. In the method of the present disclosure, a sample to be separated is derived from the peripheral blood. The method shows less trauma and low cost. Most importantly, compared to extracting the neural crest derived cell from tissues, the neural crest derived cell extracted from the peripheral blood can be used clinically as a type of biomarker.

Abstract: The invention provides a method for evaluating deep-buried tunnel blasting parameters, and belongs to the technical field of mine engineering. The method comprises: setting multiple diverse blasting schemes; selecting a plurality of test sections with the same geological characteristics, the number of the test sections corresponding to the number of the blasting schemes; blasting the test sections using the blasting schemes, and obtaining diversified monitoring data of each test section; and comparing the diversified monitoring data to select the optimal blasting schemes for the test sections. According to the method for evaluating the deep-buried tunnel blasting parameters, by implementing different blasting schemes in test sections with the same geological characteristics, diversified monitoring data of the test sections are obtained and compared to select the optimal blasting schemes for the test sections, so as to ensure the safety and quality of blasting excavation of deep-buried tunnels.

Abstract: The present disclosure discloses a camera lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens has negative refractive power; the second lens has positive refractive power, and an image-side surface thereof is a concave surface; the third lens has positive refractive power, and an image-side surface thereof is a convex surface; the fourth lens has refractive power; the fifth lens has refractive power; the sixth lens has positive refractive power; and the seventh lens has negative refractive power. And an effective focal length f2 of the second lens and a total effective focal length f of the camera lens assembly satisfy 2<f2/f<4.5.

Abstract: The disclosure discloses a photographic optical system, sequentially includes from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. Wherein the first lens has a positive refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The second lens has a negative refractive power, an object-side surface thereof is a convex surface, an image-side surface is a concave surface. The sixth lens has a negative refractive power. TTL is a distance from the object-side surface of the first lens to an imaging surface of the photographic optical system on the optical axis and ImgH is a half the diagonal length of an effective pixel area on the imaging surface of the photographic optical system, and TTL and ImgH satisfy TTL/ImgH<1.5.

Abstract: The present disclosure discloses an optical imaging system, sequentially from an object side to an image side of the optical imaging system along an optical axis, including: a first lens having refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having positive refractive power; a fifth lens having refractive power; a sixth lens having refractive power; and a seventh lens having refractive power, a concave object-side surface, and a concave image-side surface. Half of a diagonal length ImgH of an effective pixel area on an imaging plane of the optical imaging system may satisfy ImgH>6.0 mm. A total effective focal length f of the optical imaging system and an entrance pupil diameter EPD of the optical imaging system may satisfy f/EPD<1.9.

Abstract: A membrane circuit board includes a first membrane substrate, a spacer substrate, a second membrane substrate and a third membrane substrate. The first membrane substrate includes a first gas channel and a first conductive contact. The spacer substrate includes a first gas hole and a second gas hole. The second membrane substrate includes a second gas channel, a second conductive contact, a third gas hole and a fourth gas hole. The second gas channel is in communication with the third gas hole and the fourth gas hole. The second gas channel is in communication with the first gas channel through the first gas hole and the second gas hole. The third membrane substrate includes a third gas channel. The third gas channel is in communication with the second gas channel through the third gas hole and the fourth gas hole.

Abstract: A membrane circuit board includes a first membrane substrate, a spacer substrate, a second membrane substrate and a third membrane substrate. The first membrane substrate includes a first gas channel and a first conductive contact. The spacer substrate includes a first gas hole and a second gas hole. The second membrane substrate includes a second gas channel, a second conductive contact, a third gas hole and a fourth gas hole. The second gas channel is communication between the third gas hole and the fourth gas hole. The second gas channel is in communication with the first gas channel through the first gas hole and the second gas hole. The third membrane substrate includes a third gas channel. The third gas channel is in communication with the second gas channel through the third gas hole and the fourth gas hole.

Abstract: An optical imaging system includes an optical lens group including, sequentially along an optical axis from an object side to an image side, a first lens, a second lens, a third lens, and a fourth lens; a lens barrel, the optical lens group is accommodated in the lens barrel; and a plurality of spacers including at least two spacers disposed between the third lens and the fourth lens; the diameter D of the lens barrel at an end towards the object side and a maximum effective radius DT11 of an object-side surface of the first lens satisfy 2×DT11/D?0.5.

Abstract: The aspects of the present disclosure provide a method and an apparatus for implementing hardware resource allocation. For example, the apparatus includes processing circuitry. The processing circuitry obtains a first value that is indicative of an allocable resource quantity of a hardware resource in a computing device. The processing circuitry also receives a second value that is indicative of a requested resource quantity of the hardware resource by a user, and then determines whether the second value is greater than the first value. When the second value is determined to be less than or equal to the first value, the processing circuitry requests the computing device to allocate the hardware resource of the requested resource quantity to the user, and subtracts the second value from the first value to update the allocable resource quantity of the hardware resource in the computing device.

Abstract: A construction method and an application of a digital human cardiovascular system based on hemodynamics are provided, the construction method comprising: partitioning various parts of a human body according to a distributed hemodynamic monitoring system, and determining granularity of a digital human model system; constructing an arterial blood flow transmission equation based on an elastic tube model for arteries, and defining physiological significance for characteristic values of the equation; inputting signals, characteristic values and hemodynamic parameters acquired by the distributed hemodynamic monitoring system into the digital human model system; and obtaining a dynamic and distributed digital human cardiovascular system through finite element calculation. An individual dynamic digital human model based on hemodynamics is constructed through the distributed characteristic values of various parts of the human body and the calculated hemodynamic parameters.

Abstract: The present application discloses a method, a device, a display device and a medium for improving OLED residual images. The method for improving OLED residual images includes obtaining a life attenuation rate relationship and a life attenuation degree relationship of an OLED display panel, dividing a display area of the display panel into a plurality of sub-areas to monitor temperature change and gray scale change of each sub-area respectively, obtaining a temperature value and a gray scale value of each sub-area at a current moment, calculating a current life attenuation rate according to the temperature value and the gray scale value, and calculating a current luminous time of each sub-area, calculating a life attenuation degree of each sub-area according to the current luminous time of each sub-area, and performing pixel compensation to each sub-area respectively according to the current life attenuation degree of each sub-area.

Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power with a convex object-side surface; a sixth lens having positive refractive power with a convex object-side surface a convex image-side surface; and a seventh lens having negative refractive power, wherein a distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly and half of a diagonal length ImgH of an effective pixel area on the imaging plane of the optical imaging lens assembly satisfy ImgH/(TTL/ImgH)>5.0 mm.

Abstract: The present disclosure discloses an optical imaging lens group including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power with a convex object-side surface; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; and a sixth lens having negative refractive power with a concave object-side surface and a convex image-side surface. A total effective focal length f of the optical imaging lens group, an entrance pupil diameter EPD of the optical imaging lens group and half of a maximal field-of-view Semi-FOV of the optical imaging lens group satisfy: f/EPD<2, and f*tan(Semi-FOV)>4.5 mm.

Abstract: The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has a positive refractive power, and an object-side surface thereof is a convex surface and an image-side surface thereof is a concave surface; the second lens has a negative refractive power, and an image-side surface thereof is a concave surface; the third lens has a positive refractive power or a negative refractive power; the fourth lens has a negative refractive power; the fifth lens has a positive refractive power, and an image-side surface thereof is a convex surface; the sixth lens has a negative refractive power, and both of an object-side surface and an image-side surface thereof are concave surfaces.

Abstract: A key structure includes a keycap, a base plate and a supporting element. The supporting element includes a first frame and a second frame. The supporting element is connected with the keycap and the base plate. Consequently, the keycap is movable upwardly or downwardly relative to the base plate. When the first frame and a second frame are combined together, a first span and a second span are formed sequentially. The second span is smaller than the first frame.

Abstract: A charging base with a replaceable terminal element for an electric vehicle includes a fixing component and a replaceable terminal element that cooperate with each other. A DC replaceable terminal assembly includes a plastic sheath, insertion grooves and a sheath base connected to each other. A terminal is connected inside each of the insertion grooves. The sheath base is connected to the fixing component. A lower part of the terminal is provided with a knurled structure, and a lower end of the terminal is connected to the jack socket of the fixing component. A bottom part of the sheath base is provided with a waterproof groove and a terminal protection ring. A sealing gasket is connected in the waterproof groove, and has through holes.

Abstract: The disclosure provides an optical imaging lens assembly, wherein the optical imaging lens assembly sequentially includes the followings from an object side to an image side along an optical axis: a first lens having a positive focal power, wherein an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface; a second lens having a focal power; a third lens having a focal power; a fourth lens having a focal power; a fifth lens having a focal power; a sixth lens having a positive focal power; and a seventh lens having a negative focal power, wherein an object-side surface thereof is a concave surface, and an image-side surface thereof is a concave surface. DT11, DT12 and ImgH meet:2.4<(DT11+DT12)/lmgHx5<2.7.

Abstract: An optical imaging lens assembly from an object side to an image side along an optical axis sequentially includes: a first lens, having a positive refractive power, its object-side surface is convex and its image-side surface is concave; a second lens, having a refractive power, its object-side surface is convex and its image-side surface is concave; a third lens, having a refractive power; a fourth lens, having a refractive power and its object-side surface is concave; a fifth lens, having a positive refractive power, its object-side surface is concave and its image-side surface is convex; and a sixth lens, having a negative refractive power and its object-side surface is concave. A total effective focal length f of the optical imaging lens assembly and a radius of curvature R12 of an image-side surface of the sixth lens satisfy: 0?f/R12?1.5.

Abstract: The present disclosure discloses an optical imaging lens assembly. The optical imaging lens assembly includes, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first lens has a positive refractive power and a convex object-side surface. The second lens has a negative refractive power. The third lens has a positive refractive power. Each of the fourth lens and the fifth lens has a positive refractive power or a negative refractive power. The sixth lens has a positive refractive power. The seventh lens has a negative refractive power, a concave object-side surface and a concave image-side surface. A combined focal length f12 of the first and second lenses and a combined focal length f34 of the third and fourth lenses satisfy:|f12/f34|?0.3.