Abstract: The present disclosure provides an adjustable headphone including a head band assembly and two earpieces attached to two ends of the head band assembly, respectively. The head band assembly includes first and second elongate pieces each extending over a portion of the length of the head band assembly. At least one of the first and second elongate pieces is movable along the length of the head band assembly and including a first length portion and a second length portion having a larger bending strength than the first length portion.

Abstract: The present disclosure provides an adjustable headphone including a head band assembly and two earpieces attached to two ends of the head band assembly, respectively. The head band assembly includes first and second elongate pieces each extending over a portion of the length of the head band assembly. At least one of the first and second elongate pieces is movable along the length of the head band assembly and including a first length portion and a second length portion having a larger bending strength than the first length portion.

Abstract: The present disclosure provides an adjustable headphone including a head band assembly and two earpieces attached to two ends of the head band assembly, respectively. The head band assembly includes first and second elongate pieces each extending over a portion of the length of the head band assembly. At least one of the first and second elongate pieces is movable along the length of the head band assembly and including a first length portion and a second length portion having a larger bending strength than the first length portion.

Abstract: Disclosed are improved plants that have increased yield. The plants show increased yield under low phosphate conditions and therefore require less fertilizer. The plants are characterised by expression of a mutant phosphate transporter gene.

Abstract: A process of producing a kaolin product for paper coating includes mining kaolin ores by hydromechanization and then producing kaolin slurry; classifying by centrifugal sedimentation; chemical bleaching; eliminating iron ions by circular rinsing; removing water by pressure filtration; producing slurry by dispersing filter cakes, in which complex dispersants, pH adjustor and intercalator are added; delaminating; classifying by vibrating sieve; and spray drying: spray driers are restructured by adding insulating layers on packing auger, elevator scoop and bunker at first; the kaolin slurry J which has passed through vibrating sieves is dried in high speed centrifugal spray drying tower and the moisture of kaolin powder is controlled in 3 wt. %-5 wt. %, and the kaolin product for paper coating is obtained. The process characterizes in stable properties, high efficiency, and high viscosity content and fine particle size of the kaolin products produced.

Abstract: A process of producing a kaolin product for paper coating includes mining kaolin ores by hydromechanization and then producing kaolin slurry; classifying by centrifugal sedimentation; chemical bleaching; eliminating iron ions by circular rinsing; removing water by pressure filtration; producing slurry by dispersing filter cakes, in which complex dispersants, pH adjustor and intercalator are added; delaminating; classifying by vibrating sieve; and spray drying: spray driers are restructured by adding insulating layers on packing auger, elevator scoop and bunker at first; the kaolin slurry J which has passed through vibrating sieves is dried in high speed centrifugal spray drying tower and the moisture of kaolin powder is controlled in 3 wt. %-5 wt. %, and the kaolin product for paper coating is obtained. The process characterizes in stable properties, high efficiency, and high viscosity content and fine particle size of the kaolin products produced.