Abstract: A sequence signal generator and a sequence signal generation method are provided. In the sequence signal generation method, a waveform output instruction sent by a host computer is received to acquire waveform data. The waveform data includes original square wave sequence data and target square wave sequence data, and the target square wave sequence data includes a preliminary delay parameter and a secondary delay parameter. An original square wave sequence signal is acquired according to the original square wave sequence data. According to the preliminary delay parameter, preliminary delay processing is performed on the original square wave sequence signal to acquire an intermediate square wave sequence signal, and according to the secondary delay parameter, secondary delay processing is performed on the intermediate square wave sequence signal to acquire a target square wave sequence signal.

Abstract: Provided herein are stimulus-responsive polymer microgelator particles that can activate fibrin fiber formation from their surfaces by actively ejecting thrombin to form an interconnected fibrin network with an increased elastic modulus and desirable microstructure. The use of the microgelators enables the decoupling of gelation rate and gel rigidity.

Abstract: Systems and methods for robotic and exoskeleton hands are provided. An exoskeleton hand can include a flexible actuator having a cavity and a reinforcement band. The cavity can be filled with a fluid from a pressure source, forcing the actuator to deform, bend or extend. The fluid that fills the cavity as a driving force can be a gas or liquid, which can be recyclable or disposable.

Abstract: An extendable mechanism may include an extension member. The extendable mechanism may further include a link member which is provided with an extension-member-guide element. The extension member may be in engagement with the extension-member-guide element of the link member in a mariner so as to be retractably extendable from the link member in an extension direction along an axis of the extension member. The extendable mechanism may further include a link-member-guide element for being disposed at the body structure. The link member may be in engagement with the link-member-guide element in a manner so as to be retractably extendable from the link-member-guide element in the extension direction. The extendable mechanism may further include a biasing member for being arranged between the link member and the body structure. A controller may include a controller body and the extendable mechanism.

Abstract: In various embodiments, a simple, robust molybdenum disulfide (MoS2) based photosensor is provided that is able to detect both light intensity and wavelength. The MoS2 based photosensor may be structured as a field effect transistor (FET) with a back-gate configuration, including MoS2 nanoflake layers, an insulating layer coated, doped substrate, and source, drain and backgate electrodes. The photoresponse of the MoS2 based photosensor exhibits a fast response component that is only weakly dependent on the wavelength of light incident on the sensor and a slow response component that is strongly dependent on the wavelength of light incident on the sensor. The fast response component alone may be analyzed to determine intensity of the light, while the slow response component may be analyzed to determine the wavelength of the light.