Abstract: Disclosed is a portable suitcase, comprising a case, a case lid, a box, and a cover plate. Side walls of the case and a bottom surface of the case enclose a first accommodation space, tops of the side walls enclose a first opening, and the first opening is connected to the first accommodation space. One of sides of the case lid is rotatably connected to the top of one of the side walls of the case. A top of the box forms a second opening, the box is rotatably connected to an inner side wall of the case. The cover plate includes opposing a first side and a second side, the first side is rotatably connected to the case lid, and both ends of the second side are slidably connected to tops of two opposing interior side walls of the box.

Abstract: Disclosed is a portable suitcase, comprising a case, a case lid, a box, and a cover plate. Side walls of the case and a bottom surface of the case enclose a first accommodation space, tops of the side walls enclose a first opening, and the first opening is connected to the first accommodation space. One of sides of the case lid is rotatably connected to the top of one of the side walls of the case. A top of the box forms a second opening, the box is rotatably connected to an inner side wall of the case. The cover plate includes opposing a first side and a second side, the first side is rotatably connected to the case lid, and both ends of the second side are slidably connected to tops of two opposing interior side walls of the box.

Abstract: The degree of airborne virus inactivation, along with non-thermal plasma power, are dependent on the AC driving frequency used to energize the non-thermal plasma. As such, for AC-power non-thermal plasma air sterilization, there exists one or more frequencies at which dramatically enhanced pathogen inactivation can be achieved. The identification of the frequencies associated with peak pathogen inactivation, peak non-thermal plasma power (per volumetric flow rate), and peak ozone offers opportunities for optimization to achieve highest pathogen inactivation while consuming less power and producing less harmful ozone. Advanced non-thermal plasma-based air sterilization technologies could be based on systems designed with such optimization strategies.

Abstract: Methods and systems provide the infrastructure supporting an omniphysical mind or descriptive self supportable by a computing device. The infrastructure includes descriptive information capabilities and special symbols that support the capabilities. For example, a system may include at least one processor and memory storing a database that includes symbols, definitions of symbols, and processing rules. Symbol in the database may represent awareness capabilities, a categorization capability, a decision capability, a safety capability, a report capability, and a self-initiate capability. One special symbol may represent the ability of the system to organize and call the other special symbols that support the infrastructure.

Abstract: The present disclosure provides a method for printing-device monitoring by a printing monitoring server connected to a network, including: receiving identification information of a non-networked printing device and identification information of a host computer sent by the host computer, the non-networked printing device being connected to the host computer and being connected to the network through the host computer; when locally-stored printing device data contains the identification information of the non-networked printing device, determining host-computer identification information corresponding to the non-networked printing device and contained in the printing device data, to be identification information of a previous host computer; and when the identification information of the previous host computer is inconsistent with the identification information of the host computer, commanding the previous host computer stored with the identification information of the non-networked printing device to delete the

Abstract: The present disclosure provides a method for printing-device monitoring by a printing monitoring server connected to a network, including: receiving identification information of a non-networked printing device and identification information of a host computer sent by the host computer, the non-networked printing device being connected to the host computer and being connected to the network through the host computer; when locally-stored printing device data contains the identification information of the non-networked printing device, determining host-computer identification information corresponding to the non-networked printing device and contained in the printing device data, to be identification information of a previous host computer; and when the identification information of the previous host computer is inconsistent with the identification information of the host computer, commanding the previous host computer stored with the identification information of the non-networked printing device to delete the

Abstract: Methods and systems provide the infrastructure supporting an omniphysical mind or descriptive self supportable by a computing device. The infrastructure includes descriptive information capabilities and special symbols that support the capabilities. For example, a system may include at least one processor and memory storing a database that includes symbols, definitions of symbols, and processing rules. Symbol in the database may represent awareness capabilities, a categorization capability, a decision capability, a safety capability, a report capability, and a self-initiate capability. One special symbol may represent the ability of the system to organize and call the other special symbols that support the infrastructure.

Abstract: Embodiments of the present invention disclose a zero-crossing detection method and circuit. The zero-crossing detection method includes: detecting a time point t0 when a mains voltage jumps from a low electrical level to a high electrical level and an adjacent time point t1 when the mains voltage jumps from a high electrical level to a low electrical level at a port of a detection end; and determining, according to the detected time points t0 and t1, a time point t when the mains voltage crosses zero.