Abstract: Disclosed herein is a compound or pharmaceutically acceptable salts or stereoisomers thereof of of formula I wherein X1 is linear or branched C1-6 alkyl, C3-6 cycloalkyl, —C1-6 alkyl C3-6 cycloalkyl, C6-10 aryl, 5-10 membered heteroaryl, C1-6 alkyl C6-10 aryl, C1-6 alkyl 5-10 membered heteroaryl, wherein X1 is unsubstituted or substituted with one or more of halogen, linear or branched C1-6 alkyl, linear or branched C1-6 heteroalkyl, CF3, CHF2, —O—CHF2, —O—(CH2)2—OMe, OCF3, C1-6 alkylamino, —CN, —N(H)C(O)—C1-6alkyl, —OC(O)—C1-6alkyl, —OC(O)—C1-4alkylamino, —C(O)O—C1-6alkyl, —COOH, —CHO, —C1-6alkylC(O)OH, —C1-6alkylC(O)O—C1-6alkyl, NH2, C1-6 alkoxy or C1-6 alkylhydroxy; X2 is hydrogen, C6-10 aryl, 5-10 membered heteroaryl, —O-(5-10 membered heteroaryl), 4-8 membered heterocycloalkyl, C1-4 alkyl 4-8 membered heterocycloalkyl, —O-(4-8 membered heterocycloalkyl), —O—C1-4 alkyl-(4-8 membered heterocycloalkyl), —OC(O)—C1-4alkyl-4-8 membered heterocycloalkyl or C6 aryloxy, wherein X2 is unsubstituted or substi

Abstract: A wire connection terminal for a photovoltaic string is provided. The wire connection terminal includes: a terminal connector, a fuse and a printed circuit board (PCB). The terminal connector is connected to a positive electrode or a negative electrode of the photovoltaic string. The fuse is configured to prevent the photovoltaic string from outputting an excessive current. The PCB is configured to sample an output current and an output voltage of the photovoltaic string, communicate with an inverter, and control the photovoltaic string to disconnect from a direct current bus and output abnormal data for display when the output current and/or the output voltage of the photovoltaic string is abnormal or a system failure occurs.

Abstract: Woven hats and methods for manufacturing woven hats by using an ultrasonic sewing technology without a sewing thread are disclosed. One illustrative method comprises steps such as: cutting a raw material of a hat crown into a plurality of pieces, then bonding such material in pairs using an ultrasonic sewing machine, applying to seam areas a hot-pressing bonding technology of heat-seal adhesive tape, and/or otherwise completing the manufacturing of the hat crown; manufacturing a visor by using a high-frequency hot-pressing technology; manufacturing a sweatband by using a one-time hot-pressing technology; bonding the hat crown, the visor, and the sweatband with an ultrasonic sewing machine; and fixing a rear fastener or a tail belt through rivets. The disclosed technology makes it easier to realize intelligent and automatic reformation of the manufacturing line.

Abstract: A wire connection terminal for a photovoltaic string is provided. The wire connection terminal includes: a terminal connector, a fuse and a printed circuit board (PCB). The terminal connector is connected to a positive electrode or a negative electrode of the photovoltaic string. The fuse is configured to prevent the photovoltaic string from outputting an excessive current. The PCB is configured to sample an output current and an output voltage of the photovoltaic string, communicate with an inverter, and control the photovoltaic string to disconnect from a direct current bus and output abnormal data for display when the output current and/or the output voltage of the photovoltaic string is abnormal or a system failure occurs.

Abstract: Woven hats and methods for manufacturing woven hats by using an ultrasonic sewing technology without a sewing thread are disclosed. One illustrative method comprises steps such as: cutting a raw material of a hat crown into a plurality of pieces, then bonding such material in pairs using an ultrasonic sewing machine, applying to seam areas a hot-pressing bonding technology of heat-seal adhesive tape, and/or otherwise completing the manufacturing of the hat crown; manufacturing a visor by using a high-frequency hot-pressing technology; manufacturing a sweatband by using a one-time hot-pressing technology; bonding the hat crown, the visor, and the sweatband with an ultrasonic sewing machine; and fixing a rear fastener or a tail belt through rivets. The disclosed technology makes it easier to realize intelligent and automatic reformation of the manufacturing line.