Abstract: In some examples, a device can include a first antenna having a first wireless connection with a first computing device, a second antenna having a second wireless connection with a second computing device, and a controller to determine a signal strength of the first wireless connection and a signal strength of the second wireless connection, designate, in response to the signal strength of the first wireless connection being greater than a threshold signal strength, the first wireless connection as an active connection and the second wireless connection as a standby connection, and cause the peripheral device to communicate with the first computing device via the active connection of the first antenna while maintaining the second wireless connection to the second computing device via the second antenna, where the second wireless connection remains as the standby connection.

Abstract: An underground root cultivating irrigating device by siphon principle is disclosed. The device is embedded underground. The device comprises a vacuum water tank, a switch, and a water supply tank and other components. The level of inlet water is controlled by the buoyancy of a lifting pontoon. By the punching force of a collision pontoon, the opening and closing of a switch stud so that water may be supplied automatically. By the siphon principle of atmosphere, water supplies to the water supply tank is controlled automatically. Then, according to the wetness of earth, the drainage speed of water is adjusted, so that the irrigating is performed with less power and time.

Abstract: A centrifugal mud separator includes a base frame, a lower cap, a movable disk, a vane ring, an upper cap, a converging impeller, a soil retention speed reducer and a soil scraping means. Through high speed rotation, a centrifugal force and a stepless rotation speed difference will be generated in the mud that has been fed into the separator to result in the carried object (soil carried by water) suspended outwardly from low speed to high speed thereby to separate soil from water rapidly. By setting different speed variation to control speed difference between the soil and the vanes, the soil will hit the vanes at different times and result in different remaining water content in the soil according to desired specifications until reaching synchronous speed with the vanes. The soil will be spun and collected by the soil retention speed reducer. Water separated from the mud will be sucked into the impeller and discharged out through a water discharge pipe.

Abstract: A vacuum osmosis and solidification forming machine mainly comprises a forming chamber, a compressible hydraulic cylinder, a closed hydraulic cylinder, and a support frame. A solidifying material A and a pending solidification material B pre-dried and mixed uniformly in pre-determined dose ratio are guided into the air evacuated empty forming chamber to meet with a foggy liquid stabilizer or assistant. So that, the materials A, B are contacted sufficiently with the stabilizer for being thoroughly moistened by the capillary phenomenon and compressed to a minimum volume for being solidified.

Abstract: A centrifugal separator for separating solid from liquid comprises a stand, a lower cover, a leaf-blade base, an upper cover, a fender wall, and a scrape assembly. The centrifugal force produced by high-speed rotation of the upper and the lower cover enables a plurality of steel beads to create a squeezing force that is used to balance the pressure exerted on the upper cover by the thrown residue B. By foregoing organization, control of the squeezed pressure as well as thrown quantity of the residue which escapes from the gap C between the upper and the lower cover is possible. Moreover, the separated water will be drained via a drainpipe in order to separate the slurry completely for time and labor cost saving.