Abstract: A plant leaf sampler includes a sampling portion, a transfer portion and a storage portion, wherein: the sampling portion comprises a sampling punch, a movable sampling plate, a collecting plate and a docking chamber, the collecting plate is provided with a through-hole capable of allowing at least a part of a tip of the sampling punch to enter, the docking chamber is located below the collecting plate and is provided such that the movable sampling plate enters and exits the docking chamber; the transfer portion includes a track for guiding movement of the sampling plate, an in-cassette punch assembly for dropping the sample from the sampling plate and an anchor assembly for combining the sampling plate with the in-cassette punch assembly; and the storage portion comprises a storage cassette provided with at least one storage hole, the storage cassette being detachably mounted to a bottom of the plant leaf sampler.

Abstract: The present application provides a shaving head assembly, a handle assembly, and an inductive shaver. The inductive shaver includes the shaving head assembly and the handle assembly. The shaver is configured with the first conductive path, the first end of the first conductive path is the holder or the cutters in the shaving head assembly, and the second end is connected to the circuit board assembly in the handle assembly. When shaving, the holder (or the cutters) is arranged approaching the human skin 1 such as the chin and cheeks; because the human skin has a certain electric charge, when the human skin directly contacts or approaches the holder (or the cutters), the holder (or the cutters) will absorb human skin capacitance formed between the approaching position and the ground, which is the first inductive capacitor.

Abstract: Use of a unique supramolecular assembly of a tris-pyridylphosphine ligand and a metal centered porphyrin complex modified with a lactone functional group was shown to have improved selectivities to branched aldehydes via rhodium catalyzed hydroformylation of unsubstituted linear alpha olefins such as propylene and 1-octene. The addition of potassium salts was also shown to increase the activity of the lactone modified porphyrin-based catalyst while maintaining similar branched aldehyde selectivities for propylene hydroformylation.