Abstract: An adjustable dumbbell is provided, the adjustable dumbbell includes a dumbbell body and weight plates cumulatively attached to two ends of the dumbbell body. The dumbbell body includes a handle and a mounting portion provided at two ends of the handle for connecting the weight plates, and also includes a first telescopic rod and a second telescopic rod configured for hanging the weight plates, and being penetrated inside the handle. Each of the two ends of the handle is fixedly connected with a screw transmission member, and the first telescopic rod and the second telescopic rod each is respectively connected with the screw transmission member at the two ends of the handle by screw pairs with opposite directions of rotation.

Abstract: A dry sensor EEG/EMG and motion sensing system for seizure detection and monitoring is disclosed. In some embodiments, a system for seizure detection/monitoring is provided that can measure a user's EEG/EMG and motor activity, automatically detect an epileptic seizure and perform actions, such as triggering an alarm and/or turning off the provoking stimulation. In some embodiments, a system for seizure detection/monitoring is provided that can be used to continuously monitor and store a user's EEG/EMG and motor activity for doctor evaluation. In some embodiments, a system for seizure detection/monitoring is provided that can be mounted directly on a user's head using active dry EEG sensors. In some embodiments, a system for seizure detection/monitoring is provided that can be mounted into/onto a pair of glasses (e.g., 3D glasses), and the user's eyes can be automatically covered by the glasses if a seizure is detected.

Abstract: A dry sensor EEG/EMG and motion sensing system for seizure detection and monitoring is disclosed. In some embodiments, a system for seizure detection/monitoring is provided that can measure a user's EEG/EMG and motor activity, automatically detect an epileptic seizure and perform actions, such as triggering an alarm and/or turning off the provoking stimulation. In some embodiments, a system for seizure detection/monitoring is provided that can be used to continuously monitor and store a user's EEG/EMG and motor activity for doctor evaluation. In some embodiments, a system for seizure detection/monitoring is provided that can be mounted directly on a user's head using active dry EEG sensors. In some embodiments, a system for seizure detection/monitoring is provided that can be mounted into/onto a pair of glasses (e.g., 3D glasses), and the user's eyes can be automatically covered by the glasses if a seizure is detected.

Abstract: A noise-free portable EEG system is provided. The system has hardware and software and can evaluate mental state quantitatively. The quantitative data of mental states and their levels can be applied to various areas of brain-machine interface including consumer products, video game, toys, military and aerospace as well as biofeedback or neurofeedback.