Abstract: A pyridone compound and a preparation method therefor, a pharmaceutical composition and a use. The structure of the pyridone compound is as shown in formula (I), and the pyridone compound comprises an isomer, a pharmaceutically acceptable salt, or a mixture thereof. The pyridone compound has a highly effective inhibitory effect on cIAP1, cIAP2, XIAP and various tumor cells, and can be used to prepare anti-tumor drugs that can exert pharmacological effects at both the molecular level and the cellular level.

Abstract: The disclosure relates to the field of vehicle hooks, and in particular to a vehicle hook capable of preventing reel disengagement and a vehicle, aiming at solving the problem of disengagement proneness of an existing rewinding reel from mounting notches of a hook base. To this end, the vehicle hook capable of preventing reel disengagement according to the disclosure comprises a mounting portion and a rewinding reel, wherein the mounting portion is configured to be connected to a vehicle and is provided with at least two mounting notches, the rewinding reel is rotatably arranged in the mounting notches and removably connected to the mounting portion, and at least one of the at least two mounting notches is a closable notch.

Abstract: A Micro Inertial Measurement Unit (IMU) which is based on MEMS accelerometers and gyro sensors is developed for real-time recognition of human hand motions, especially as used in the context of writing on a surface. Motion is recorded by a motion/acceleration sensor, which may be a combination of a rate rate gyro and an accelerometer, and possibly in combination with a video camera set to detect markers located on a board, with the camera utilizable to detect lines and markers and to determine the proximity of the white board. The immediate advantage is the facilitation of a digital interface with both PC and mobile computing devices and perhaps to enable wireless sensing.

Abstract: A Micro Inertial Measurement Unit (IMU) which is based on MEMS accelerometers and gyro sensors is developed for real-time recognition of human hand motions, especially as used in the context of writing on a surface. Motion is recorded by a rate gyro and an accellerometer and communicated to a Bluetooth module, possibly to a computer which may be 20 to 30 feet or more from the sensor. The motion information generated and communicated is combined with appropriate filtering and transformation algorithms to facilitate a complete Digital Writing System that can be used to record handwriting on any surface, or on no surface at all. The overall size of an IMU can be less than 26 mm×20 mm×20 mm, and may include micro sensors, a processor, and wireless interface components. The Kalman filtering algorithm is preferably used to filter the noise of sensors to allow successful transformance of hand motions into recognizable and recordable English characters.

Abstract: A Micro Inertial Measurement Unit (IMU) which is based on MEMS accelerometers and gyro sensors is developed for real-time recognition of human hand motions, especially as used in the context of writing on a surface. Motion is recorded by a rate gyro and an accellerometer and communicated to a Bluetooth module, possibly to a computer which may be 20 to 30 feet or more from the sensor. The motion information generated and communicated is combined with appropriate filtering and transformation algorithms to facilitate a complete Digital Writing System that can be used to record handwriting on any surface, or on no surface at all. The overall size of an IMU can be less than 26 mm×20 mm×20 mm, and may include micro sensors, a processor, and wireless interface components. The Kalman filtering algorithm is preferably used to filter the noise of sensors to allow successful transformance of hand motions into recognizable and recordable English characters.