Abstract: An electronic apparatus, including a circuit board, a chip, a heat sink, and a limiting member. The chip is fastened to the circuit board. A surface that is of the chip and that is away from the circuit board forms a first heat dissipation surface. A surface that is of the heat sink and that faces the circuit board forms a second heat dissipation surface. A heat dissipation medium is provided between the second heat dissipation surface and the first heat dissipation surface of the chip. The limiting member is disposed on one of the heat sink and the circuit board, and forms a gap with the other. The heat sink is not carried on the limiting member and has a specific gap with the limiting member, and the second heat dissipation surface presses against the first heat dissipation surface when acting on the first heat dissipation surface.

Abstract: Methods, apparatuses, devices, and computer-readable storage media for data processing are provided. In one aspect, a computer-implemented method includes: obtaining video data of a first place, determining visit trajectories corresponding to multiple target persons according to the video data, and determining business data according to the visit trajectories.

Abstract: Examples of the present disclosure disclose data processing methods, apparatuses and storage media. The data processing method includes: obtaining a plurality of video images of a target site within a predetermined time range; performing pedestrian identification processing on the plurality of video images to obtain, based on the identification result, a customer counting result for a first region in the target site and a customer counting result for a second region in the target site; and determining a degree of association between the second region and the first region based on the customer counting result for the first region and the customer counting result for the second region.

Abstract: Examples of the present disclosure provide a region arrangement method, apparatus and storage medium, wherein the region arrangement method includes: respectively acquiring association degree data between a first region and each of a plurality of second regions, wherein the first region and the plurality of second regions are located in a first site; obtaining a region arrangement analysis result by analyzing, according to the association degree data, arrangement between the first region and the plurality of second regions in the first site; and based on the region arrangement analysis result, performing region arrangement on a second site or outputting region arrangement information of the second site.

Abstract: Examples of the present disclosure disclose data processing methods, apparatuses and storage media. The data processing method includes: obtaining a plurality of video images of a target site within a predetermined time range; performing pedestrian identification processing on the plurality of video images to obtain, based on the identification result, a customer counting result for a first region in the target site and a customer counting result for a second region in the target site; and determining a degree of association between the second region and the first region based on the customer counting result for the first region and the customer counting result for the second region.

Abstract: Arsenic compounds of general formula (I), their preparation methods, the pharmaceutical compositions containing the compounds, and their uses in the manufacture of medicaments for treating cancer, particularly leukemia, are disclosed.

Abstract: The present invention relate to a preparation method of high-purity L-carnitine which belongs to an important technique of quality control in different steps of chiral medicine production.

Abstract: A preparation method and its use of derivatization reagent for detecting L-carnitine or D-carnitine are provided. The present reagent is stable. It can be used for detecting L-carnitine or D-carnitine accurately and sensitively. That is to say, the reagent is applied to detecting the amount of synthesized or natural L-carnitine and the amount of mixing D-carnitine. The compound reagent is used for determining the chiral isomers of chemicals, biological reagents, health care reagents, cosmetic, body fluids and various foods, which contain L-carnitine or/and D-carnitine, and optical isomers of other chiral amino acids.

Abstract: Arsenic compounds of general formula (I), their preparation methods, the pharmaceutical compositions containing the compounds, and their uses in the manufacture of medicaments for treating cancer, particularly leukemia, are disclosed.

Abstract: A preparation method and its use of derivatisation reagent for detecting L-carnitine or D-carnitine are provided. The present reagent is stable. It can be used for detecting L-carnitine or D-carnitine accurately and sensitively. That is to say, the reagent is applied to detecting the amount of synthesized or natural L-carnitine and the amount of mixing D-carnitine. The compound reagent is used for determining the chiral isomers of chemicals, biological reagents, health care reagents, cosmetic, body fluids and various foods, which contain L-carnitine or/and D-carnitine, and optical isomers of other chiral amino acids.

Abstract: The present invention relate to a preparation method of high-purity L-carnitine which belongs to an important technique of quality control in different steps of chiral medicine production.