39results about How to "Safe and effective management" patented technology

The invention discloses a flexible shield support excavation integrated supporting coal-pillar-free mining method of a steep medium-thickness coal seam. Flexible shield supports the same as those on a working face are used in a section drift for supporting; flexible shield supports of a section air return drift above the working face are naturally transited into the working face; flexible shield supports in the working face are naturally transited into a goaf below the working face to be maintained into a section transport drift which serves as an air return roadway of a lower section; the section air return drift is not tunneled any longer during recovery of the lower section; at the same time, a procedure of mounting and removing the flexible shield supports on the working face is canceled; mounting and removal of chambers and roadways related to subsidiary transport on the working face are canceled; the workload is reduced; the yield is increased; the advance speed of the mining working face is increased; normal replacement between the upper and lower sections is ensured; section coal pillars are canceled; a recovery ratio is increased; the natural fire danger in the goaf is reduced; and a reliable safety assurance is provided for the recovery work.

An electric built-in lock for rifle trigger consists of a lock seat installed in rear of its receiver, batteries, a controlling circuit, and an electric actuator with a pushing screw rod and a lockinghook. The electric lock makes rifle controlled effectively and safely, can be installed invisibly, unlocked quickly, and used for various conditions with good impact-resistance.

The present invention discloses a steep medium-thickness coal seam stepped coal pillar-free coal mining method. A tunnel is pre-tunneled and a step working face and a corresponding tray bracket are arranged in the tunnel. Extractive integration support is performed through a flexible shield support. An upper tunnel in front of the step working face is used as an air return tunnel, and a rear tunnel is used as a haulageway. In tunneling process, the flexible shield support and the tray bracket of the upper tunnel in front of the step working face bridge the haulageway behind the step working face and simultaneously work as a tunnel support system of a next step working face for recycling. The coal mining method helps to solve the problems that the inclination of steep medium-thickness coal seam is large, the arrangement of the working face as a conventional mining method is difficult and complex, overcome the difficulties of mechanization coal mining for steep medium-thickness coal seam, eliminate tunnels in every working face, reduce the tunneling, improve working face arrangement speed and working face succeeding relations, simplify ventilation and transportation systems, and reduce tunnel support costs.

The invention provides an inter-network transparent transmission detecting system which comprises detection probe ends interconnected on the internet, a probe configuration management server and an application analysis server. The detection probe ends are used for executing detection programs and sending detection data; the probe configuration management server is used for verifying the detection probe ends, controlling execution of the detection programs; the application analysis server is used for receiving and analyzing the detection data; and when an interconnection and interworking gateway is not included in routing information of the detection data, and a source IP address in a data packet sent by the detection probe ends is the home network address, then the detection probe ends are determined to send the detection data through the inter-network transparent transmission mode. The inter-network transparent transmission detecting system facilitates maintenance of the security and stability of network operation.

Embodiments of the present invention propose a method and device for managing blockchain addresses, wherein the method includes: obtaining a Raw Address generated by a root private key and a Path corresponding to the Raw Address; wherein each Raw Address corresponds to a Path ; The Raw Address and the sub-private key corresponding to the Raw Address are generated by the root private key; encapsulating and encoding the Path into the Raw Address to generate an MCL address. By encapsulating the Path code in the Raw Address, when the private key needs to be managed, the Path can be obtained by reverse decoding, combined with the root private key saved by itself, to achieve safe and effective management of the private key corresponding to each address.

Disclosed is a method of processing Polygonum multiflorum, the method contains preparing a root extract solution and placing the solution under UV light for 1 to 24 hours. Also disclosed is a composition prepared from the method that can be for use in the prevention, treatment, and management of diabetes in human and animal subjects.