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 refractive power; a second lens having refractive power with a convex object-side surface and a concave image-side surface; a third lens having refractive power; a fourth lens having negative refractive power; a fifth lens having negative refractive power with a concave object-side surface and a convex image-side surface; and a sixth lens having refractive power with a concave object-side surface and a convex image-side surface. 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 a total effective focal length f of the optical imaging lens assembly satisfy: TTL/f<1.

Abstract: The present disclosure discloses an optical imaging system 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 refractive power; a third lens having negative refractive power; a fourth lens having refractive power with a convex object-side surface and a concave image-side surface; a fifth lens having refractive power; and a sixth lens having negative refractive power. Half of a maximal field-of-view Semi-FOV of the optical imaging system satisfies Semi-FOV<15°. A distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging system, half of a diagonal length ImgH of an effective pixel area on the imaging plane and an effective focal length f of the optical imaging system satisfy 1.9 mm<TTL*ImgH/f<2.7 mm.

Abstract: The present disclosure relates to organic electroluminescent materials and organic electroluminescent devices, in particular, discloses a compound of formula (1), wherein R1, R2, R3 and R4 are each independently selected from hydrogen, a substituted or unsubstituted C1-20 alkyl, a substituted or unsubstituted C3-20 cycloalkyl, a substituted or unsubstituted aromatic hydrocarbyl, or a substituted or unsubstituted aromatic heterocyclic group; and at least one of R1, R2, R3 and R4 contains a group having a hole-transporting ability; and at least one of R1, R2, R3 and R4 contains a group having an electron-transporting ability; A and B each independently represent hydrogen, a substituted or unsubstituted, fused aromatic ring, or a substituted or unsubstituted, fused heteroaromatic ring containing a heteroatom(s) selected from O, N and S.

Abstract: The present disclosure discloses an optical imaging lens assembly which 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 and a sixth lens. The first lens has a positive refractive power with a convex object-side surface; the second lens has a refractive power with a concave image-side surface; the third lens has a refractive power with a convex object-side surface; the fourth lens has a refractive power with a concave object-side surface; the fifth lens has a refractive power; and the sixth lens has a refractive power with a concave object-side surface. A maximum effective radius DT11 of the object-side surface of the first lens and a maximum effective radius DT61 of the object-side surface of the sixth lens satisfy 0.6<DT11/DT61<1.

Abstract: Disclosed are an optical detection method and an optical detection apparatus for a fatigue state of a user, and an optical detection device, this application relates to the field of detection technology, and is for improving accuracy of detection of the fatigue state. An optical detection method includes: irradiating eyes of the user with an infrared light; obtaining an intensity of an infrared light reflected by the eyes of the user; and determining whether the user is in a fatigue state based on the intensity of the reflected infrared light.

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, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has a refractive power, an object-side surface of the first lens is a concave surface, and an image-side surface of the first lens is a convex surface; the second lens has a positive refractive power; the third lens has a negative refractive power; the fourth lens has a refractive power; the fifth lens has a negative refractive power, and the sixth lens has a refractive power. An effective focal length f2 of the second lens and a radius of curvature R3 of an object-side surface of the second lens satisfy 1.5<f2/R3<2.

Abstract: The invention disclosed herein relates to methods and materials for producing simvastatin and related compounds such as huvastatin. In particular, the disclosure teaches that variants of the LovD acyltransferase polypeptide can be engineered to exhibit properties that facilitate their use in the production of simvastatin and/or huvastatin. The materials and processes disclosed herein are designed so that fermentation facilitates lovastatin being converted to simvastatin and related compounds with minimal modifications.

Abstract: A combined sedimentation tank including a flocculation tank, a transition zone and a sedimentation tank which are sequentially connected along a direction that water flows. The sedimentation tank includes a sloping plate zone and a horizontal flow zone. The length of the sloping plate zone is a quarter of the total length of the sedimentation tank. A return pipe is arranged at the bottom of the sloping plate zone. Some of sludge in the sloping plate zone is returned to the flocculation tank through the return pipe to increase the concentration of the suspended solids in the flocculation tank, thereby forming the sediments.

Abstract: The present disclosure discloses a camera lens assembly. The camera lens assembly includes, sequentially along an optical axis from an object side to an image side, a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a refractive power; a fourth lens having a refractive power; a fifth lens having a refractive power; a sixth lens having a refractive power, where an object-side surface of the sixth lens is a convex surface, and an image-side surface of the sixth lens is a convex surface; and a seventh lens having a negative refractive power, where an object-side surface of the seventh lens is a convex surface. An effective focal length f2 of the second lens and a total effective focal length f of the camera lens assembly satisfy: ?3?f2/f<?1.5.

Abstract: The invention disclosed herein relates to methods and materials for producing simvastatin and related compounds such as huvastatin. In particular, the disclosure teaches that variants of the LovD acyltransferase polypeptide can be engineered to exhibit properties that facilitate their use in the production of simvastatin and/or huvastatin. The materials and processes disclosed herein are designed so that fermentation facilities lovastatin being converted to simvastatin and related compounds with minimal modifications.

Abstract: The invention disclosed herein relates to methods and materials for producing simvastatin and related compounds such as huvastatin. In particular, the disclosure teaches that variants of the LovD acyltransferase polypeptide can be engineered to exhibit properties that facilitate their use in the production of simvastatin and/or huvastatin. The materials and processes disclosed herein are designed so that fermentation facilities lovastatin being converted to simvastatin and related compounds with minimal modifications.

Abstract: The invention relates to a phthalocyanine compound, which has a structure as represented by Formula I, wherein A represents a transition metal or a rare earth metal; R1 represents a phenyl group, a naphthyl group, or a C4-C16 n-alkyl group. The aromatic phthalocyanine compound having the structure of Formula I provided in the invention contains a transition metal or a rare earth metal, and introduces a peripheral substituent into a linearly extended ?-conjugated system. It is relatively stabler at 400° C. or less and will be easily evaporated in vacuum to form a uniform thin film, and has good thermal stability, high chemical stability, and high mobility. The organic semiconductor device has the features of relatively fast on-off speed, relatively high on-off ratio, and strong reliability.

Abstract: A method for manufacturing the OLED includes: forming an anode, a cathode layer and an intermediate layer; forming a patterned first organic material layer on the cathode layer; forming a patterned second organic material layer on the first organic material layer using a material different from that of the first organic material layer, wherein a projection of the first organic material layer in a direction perpendicular to a major plane of the OLED overlaps with a projection of the second organic material layer in the direction; and forming an auxiliary electrode on the cathode layer, wherein a projection of the auxiliary electrode in the direction perpendicular to the major plane of the OLED does not overlap with the projections of the first organic material layer and the second organic material layer in the direction.

Abstract: A method for manufacturing the OLED includes: forming an anode, a cathode layer and an intermediate layer; forming a patterned first organic material layer on the cathode layer; forming a patterned second organic material layer on the first organic material layer using a material different from that of the first organic material layer, wherein a projection of the first organic material layer in a direction perpendicular to a major plane of the OLED overlaps with a projection of the second organic material layer in the direction; and forming an auxiliary electrode on the cathode layer, wherein a projection of the auxiliary electrode in the direction perpendicular to the major plane of the OLED does not overlap with the projections of the first organic material layer and the second organic material layer in the direction.

Abstract: The present disclosure relates to organic electroluminescent materials and organic electroluminescent devices, in particular, discloses a compound of formula (1), wherein R1, R2, R3 and R4 are each independently selected from hydrogen, a substituted or unsubstituted C1-20 alkyl, a substituted or unsubstituted C3-20 cycloalkyl, a substituted or unsubstituted aromatic hydrocarbyl, or a substituted or unsubstituted aromatic heterocyclic group; and at least one of R1, R2, R3 and R4 contains a group having a hole-transporting ability; and at least one of R1, R2, R3 and R4 contains a group having an electron-transporting ability; A and B each independently represent hydrogen, a substituted or unsubstituted, fused aromatic ring, or a substituted or unsubstituted, fused heteroaromatic ring containing a heteroatom(s) selected from O, N and S.

Abstract: The present disclosure provides an electroluminescent device, its manufacturing method, a display substrate and a display device. The electroluminescent device includes a substrate, and a pixel defining layer arranged on the substrate. A pixel aperture matrix is formed in the pixel defining layer, at least one connection channel is formed on the pixel defining layer, an electroluminescent layer in a predetermined color is formed in each pixel aperture of the pixel aperture matrix, and the connection channel is configured to connect at least two pixel apertures of the pixel aperture matrix in an identical row or column and corresponding to the electroluminescent layers in an identical color.

Abstract: The invention relates to a phthalocyanine compound, which has a structure as represented by Formula I, wherein A represents a transition metal or a rare earth metal; R1 represents a phenyl group, a naphthyl group, or a C4-C16 n-alkyl group. The aromatic phthalocyanine compound having the structure of Formula I provided in the invention contains a transition metal or a rare earth metal, and introduces a peripheral substituent into a linearly extended 7c-conjugated system. It is relatively stabler at 400° C. or less and will be easily evaporated in vacuum to form a uniform thin film, and has good thermal stability, high chemical stability, and high mobility. The organic semiconductor device has the features of relatively fast on-off speed, relatively high on-off ratio, and strong reliability.

Abstract: The invention disclosed herein relates to methods and materials for producing simvastatin and related compounds such as huvastatin. In particular, the disclosure teaches that variants of the LovD acyltransferase polypeptide can be engineered to exhibit properties that facilitate their use in the production of simvastatin and/or huvastatin. The materials and processes disclosed herein are designed so that fermentation facilities currently producing lovastatin can be converted to producing simvastatin and related compounds with minimal modifications.

Abstract: The present invention relates to the field of organic electroluminescent technology, particularly relates to an aromatic amine derivative, its preparation method, uses and organic electroluminescent devices. The technical aim of the present invention is to improve the film forming ability and the redox repeatability.

Abstract: The present disclosure provides an electroluminescent device, its manufacturing method, a display substrate and a display device. The electroluminescent device includes a substrate, and a pixel defining layer arranged on the substrate. A pixel aperture matrix is formed in the pixel defining layer, at least one connection channel is formed on the pixel defining layer, an electroluminescent layer in a predetermined color is formed in each pixel aperture of the pixel aperture matrix, and the connection channel is configured to connect at least two pixel apertures of the pixel aperture matrix in an identical row or column and corresponding to the electroluminescent layers in an identical color.