Abstract: A preparation method of a crop straw-based seawater desalinator and a product thereof, and the preparation process is as follows: (1) crushing crop straws, and screening the crushed crop straws through a mesh sieve to obtain straw powder; (2) calcining the straw powder at a high temperature under nitrogen protection to obtain biochar, and then putting the biochar into a ball mill for ball milling to obtain ball-milled biochar; (3) adding the straw powder into a sodium hydroxide solution for reaction, and centrifuging a reactant to obtain a viscous product; and (4) stirring the viscous product uniformly with the ball-milled biochar to obtain a mixture, pouring the mixture into a mold, and freezing and drying the mixture to obtain a seawater desalinator. The evaporator features high evaporation rate and the photothermal conversion efficiency, and the ion concentration of the water body after evaporation is greatly reduced.

Abstract: A preparation method of a crop straw-based seawater desalinator and a product thereof, and the preparation process is as follows: (1) crushing crop straws, and screening the crushed crop straws through a mesh sieve to obtain straw powder; (2) calcining the straw powder at a high temperature under nitrogen protection to obtain biochar, and then putting the biochar into a ball mill for ball milling to obtain ball-milled biochar; (3) adding the straw powder into a sodium hydroxide solution for reaction, and centrifuging a reactant to obtain a viscous product; and (4) stirring the viscous product uniformly with the ball-milled biochar to obtain a mixture, pouring the mixture into a mold, and freezing and drying the mixture to obtain a seawater desalinator. The evaporator features high evaporation rate and the photothermal conversion efficiency, and the ion concentration of the water body after evaporation is greatly reduced.

Abstract: An apparatus for low-frequency signal detection and transmission in a short-distance communication field comprises: a PCB, a magnetic induction module for inducing low-frequency magnetic signal, and a low-frequency signal processing module for detecting low-frequency signal, the magnetic induction module and the low-frequency signal processing module being integrated onto the PCB. The magnetic induction module is connected with the low-frequency signal processing module. The PCB can be a SIM card PCB, a Micro-SIM card PCB, a TF card PCB, a SD card PCB, or a UIM card PCB, etc. This invention realizes low-frequency signal detection and transmission function of a SIM card, a TF card, a SD card, a UIM card, or any of other various memory cards mounted in a mobile phone.

Abstract: An apparatus for low-frequency signal detection and transmission in a short-distance communication field comprises: a PCB, a magnetic induction module for inducing low-frequency magnetic signal, and a low-frequency signal processing module for detecting low-frequency signal, the magnetic induction module and the low-frequency signal processing module being integrated onto the PCB. The magnetic induction module is connected with the low-frequency signal processing module. The PCB can be a SIM card PCB, a Micro-SIM card PCB, a TF card PCB, a SD card PCB, or a UIM card PCB, etc. This invention realizes low-frequency signal detection and transmission function of a SIM card, a TF card, a SD card, a UIM card, or any of other various memory cards mounted in a mobile phone.

Abstract: A system and method for the management of information in an enterprise system are disclosed. In one embodiment, the enterprise system includes a primary system and a legacy system. The primary system includes an application or interface that can be used to communicate with and receive communications from a legacy system. In another embodiment, a legacy system can include an application or interface that can be used to communicate with and receive communications from the primary system. The primary system includes a database with information for the enterprise system. In one embodiment, the primary system provides updates to the legacy system of any changes in the information in the database. In another embodiment, a legacy system can select updates to particular enterprise information that it wants to receive from the primary system.