Abstract: A performance monitoring system for a disc cutter of a tunnel boring machine (TBM) is provided, and includes a disc cutter body, a shaft assembly and an isolation boss; the shaft assembly includes a shaft main body and a bearing spacer located on the shaft main body; a rotating mechanism is arranged in a space between the isolation boss and the bearing spacer; the rotating mechanism includes a rotator and a T-shaped extension support located between the bearing spacer and the rotator; bearing retainers of roller bearings are arranged on two sides of the T-shaped extension support; a ring-shaped grating strip is arranged on one side of the rotator close to the T-shaped extension support; a connecting component is arranged on one side of the rotator away from a rotating bearing; and a sealing assembly is arranged between the T-shaped extension support and the rotator.

Abstract: A process for making facial masks includes the step of providing a solution of materials comprising at least one moisturizer, the step of making nanometer fibers from the solution of materials, the step of making a skincare product from the nanometers, and the step of packaging the skincare product.

Abstract: A method for preparing a nitrate ester is provided. The method includes providing a first solution including a compound (which has at least one hydroxyl group) and a carboxylic acid having 2-5 carbon atoms; providing a second solution including nitric acid, acetic anhydride, and acetic acid; and transferring the first solution and the second solution to a microreactor, obtaining a nitrate ester after a residence time. In particular, the ratio of the weight of nitric acid to the total volume of the acetic anhydride and acetic acid is 1:1 to 1:3.5. The ratio of the molar amount of nitric acid to the hydroxyl group equivalent of the compound is from 1:1 to 15:1.

Abstract: A method for preparing a nitrate ester is provided. The method includes providing a first solution including a compound (which has at least one hydroxyl group) and a carboxylic acid having 2-5 carbon atoms; providing a second solution including nitric acid, acetic anhydride, and acetic acid; and transferring the first solution and the second solution to a microreactor, obtaining a nitrate ester after a residence time. In particular, the ratio of the weight of nitric acid to the total volume of the acetic anhydride and acetic acid is 1:1 to 1:3.5. The ratio of the molar amount of nitric acid to the hydroxyl group equivalent of the compound is from 1:1 to 15:1.

Abstract: Organic metal compounds, organic light-emitting devices, and lighting devices employing the same are provided. The organic metal compound has a chemical structure represented by Formula (I): wherein M is Ir, Pt, Ru, Os, Cu, Au, or Pd; n is 1, 2, or 3; m is 0, 1, or 2, and the sum of m and n is equal to a valence of M; L is a bidentate ligand; R1 is hydrogen, C1-9 alkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group; each of R2 is independent and can be hydrogen, halogen, cyano group, C1-9 alkyl group, C1-6 fluoroalkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group; R3 is halogen; and, R4 and R5 are independently the same or different hydrogen, hydroxyl group, amine group, alkyl amine group, halogen, cyano group, C1-9 alkyl group, C1-6 fluoroalkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group.

Abstract: Organic metal compounds, organic light-emitting devices, and lighting devices employing the same are provided. The organic metal compound has a chemical structure represented by Formula (I): , wherein M is Ir, Pt, Ru, Os, Cu, Au, or Pd; n is 1, 2, or 3; m is 0, 1, or 2, and the sum of m and n is equal to a valence of M; L is a bidentate ligand; R1 is hydrogen, C1-9 alkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group; each of R2 is independent and can be hydrogen, halogen, cyano group, C1-9 alkyl group, C1-6 fluoroalkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group; R3 is halogen; and, R4 and R5 are independently the same or different hydrogen, hydroxyl group, amine group, alkyl amine group, halogen, cyano group, C1-9 alkyl group, C1-6 fluoroalkyl group, C5-10 cycloalkyl group, or C5-12 aromatic group.

Abstract: In an embodiment of the present disclosure, a liquid crystal display is provided. The liquid crystal display includes an upper substrate, a lower substrate opposite to the upper substrate, and a liquid crystal layer disposed between the upper substrate and the lower substrate, wherein the liquid crystal layer includes a first chiral compound and a second chiral compound, and the first chiral compound and the second chiral compound are enantiomeric and separated from each other.

Abstract: A chiral compound of formula (I) or (II) is provided, wherein each of R1 and R2 independently, is hydrogen, hydroxyl, halogen, amino, nitrile, C1-10 alkyl, or C1-10 alkoxyl. A liquid crystal composition comprising 80-99.5 parts by weight of a liquid crystal host; and 0.5-20 parts by weight of the chiral compound as described above is also provided.

Abstract: A liquid crystal compound of Formula (I) is provided. In Formula (I), A is benzene, naphthalene, pyridine, furan, thiophene or a single bond, D is benzene, naphthalene, pyridine, furan, thiophene or a single bond, R1 and R2 are C1-10 alkyl, C1-10 alkoxy, fluoro or trifluoro methyl, E is benzene, naphthalene, pyridine, furan, thiophene or a single bond, W is —CO—O—, —O—CO—, —O—, —CH2—CH2—, —CH?CH—, —CH2—O— or a single bond, Z is benzene, naphthalene, pyridine, furan, thiophene or a single bond, Y is hydrogen, methyl, ethyl or propyl, m is 0, 1 or 2, p is 0, 1 or 2, r is 0, 1 or 2, q is 0, 1 or 2, and n is 0, 1, 2 or 3. The invention also provides a liquid crystal display and photochromic material including the compound.

Abstract: A liquid crystal compound of Formula (I) is provided. In Formula (I), A is benzene, naphthalene, pyridine, furan, thiophene or a single bond, D is benzene, naphthalene, pyridine, furan, thiophene or a single bond, R1 and R2 are C1-10 alkyl, C1-10 alkoxy, fluoro or trifluoro methyl, E is benzene, naphthalene, pyridine, furan, thiophene or a single bond, W is —CO—O—, —O—CO—, —O—, —CH2—CH2—, —CH?CH—, —CH2—O— or a single bond, Z is benzene, naphthalene, pyridine, furan, thiophene or a single bond, Y is hydrogen, methyl, ethyl or propyl, m is 0, 1 or 2, p is 0, 1 or 2, r is 0, 1 or 2, q is 0, 1 or 2, and n is 0, 1, 2 or 3. The invention also provides a liquid crystal display and photochromic material including the compound.

Abstract: A liquid crystal composition and a liquid crystal display employing the same are provided. The liquid crystal composition includes: 100 parts by weight of at least one nematic liquid crystal; 1-20 parts by weight of at least one photosensitive chiral compound; and 1-20 parts by weight of at least one non-photosensitive chiral compound.

Abstract: A liquid crystal composition and a liquid crystal display employing the same are provided. The liquid crystal composition includes: 100 parts by weight of at least one nematic liquid crystal; 1-20 parts by weight of at least one photosensitive chiral compound; and 1-20 parts by weight of at least one non-photosensitive chiral compound.

Abstract: A chiral compound of formula (I) or (II) is provided, wherein each of R1 and R2 independently, is hydrogen, hydroxyl, halogen, amino, nitrile, C1-10 alkyl, or C1-10 alkoxyl. A liquid crystal composition comprising 80-99.5 parts by weight of a liquid crystal host; and 0.5-20 parts by weight of the chiral compound as described above is also provided.

Abstract: An organic metal complex is provided. The organic metal complex has formula (I): wherein R1 includes hydrogen, C1˜C9 alkyl, C5˜C8 cycloalkyl, or substituted or non-substituted aromatic groups, R2 and R3 comprise hydrogen, fluorine, trifluoromethyl, C1˜C9 alkyl, C5˜C8 cycloalkyl, or substituted or non-substituted aromatic groups, Y comprises C—R or carbonyl, wherein R comprises hydrogen, C1˜C9 alkyl, C5˜C8 cycloalkyl, or substituted or non-substituted aromatic groups, L is a ligand, M comprises iridium, platinum, ruthenium, gold, or palladium, m is 1˜3, and n is 0˜2, wherein m+n is equal to the valence of M.

Abstract: An organic metal complex is provided. The organic metal complex has formula (I): wherein R1 includes hydrogen, C1˜C9 alkyl, C5˜C8 cycloalkyl, or substituted or non-substituted aromatic groups, R2 and R3 comprise hydrogen, fluorine, trifluoromethyl, C1˜C9 alkyl, C5˜C8 cycloalkyl, or substituted or non-substituted aromatic groups, Y comprises C—R or carbonyl, wherein R comprises hydrogen, C1˜C9 alkyl, C5˜C8 cycloalkyl, or substituted or non-substituted aromatic groups, L is a ligand, M comprises iridium, platinum, ruthenium, gold, or palladium, m is 1˜3, and n is 0˜2, wherein m+n is equal to the valence of M.

Abstract: A method of fabricating of a metal line by a wet process is provided. A catalytic adhesive layer is formed on an insulating substrate. A fist metal layer is formed by an electoless plating process, and then, a second metal layer is formed by an electoless plating process or an electoplating process. The first and the second metal layers are patterned to form a metal line.