Abstract: A heat-dissipating element having a casing having a closed fluid space. At least a part of the fluid space is filled with a coolant fluid, and the coolant fluid is transformed between a liquid phase and a gas phase by an environment temperature transferred by the casing.

Abstract: An intelligent bed monitoring device and method are provided in this disclosure. The device is applied to a bed frame, and the bed frame includes a first bed board and a second bed board. The intelligent bed monitoring device includes a plurality of audio sensors, a processor and a controlling module. The processor is electrically connected to the audio sensors and the controlling module. The audio sensors are configured to detect a plurality of audio signals. The processor is configured to receive the audio signals, and calculate an audio source direction according to the audio signals. The controlling module is configured to control one of the first bed board and the second bed board according to the audio source direction to adjust one of the first bed board and the second bed board into a plurality of modes.

Abstract: A speaker includes a sound box, a speaker module, and a heat pipe. The sound box includes a first opening and a second opening. The speaker module is hermetically connected to the first opening. The heat pipe is hermetically connected to the second opening. The heat pipe includes a first end and a second end. The first end is located in the sound box. The second end is exposed to the second opening. The speaker module is fixedly connected to at least part of an outer wall of the heat pipe. In the speaker, a hollow heat pipe is fixedly connected to the speaker module, and vibration of the speaker module drives air in the heat pipe to flow to dissipate heat from the heat pipe. Further, the cold heat pipe carries heat away from the speaker module through heat transfer, thereby dissipating heat from the speaker.

Abstract: An electrical bed is provided. The electrical bed includes a frame, a plurality of bed plates, a first connector and a first driving unit. The frame includes a plurality of bed stands, and the bed plates are arranged on the bed stands. The first connector includes a first rotating member, a first connecting arm, a first transmission bar and a second connecting arm. The first rotating member is pivotally connected with the first connecting arm, and the first connecting arm is sleeved with the first transmission bar and fixed relative to each other, and the second connecting arm is sleeved with the first transmission bar and fixed relative to each other. The first driving unit is arranged to drive the first transmission bar to rotate and adjust one of the bed plates.

Abstract: An intelligent bed monitoring system and device are provided in this disclosure. The system is applied to a bed frame, and the bed frame includes a bed board. The intelligent bed monitoring system includes a first server, an intelligent bed monitoring device and an electronic device. The intelligent bed monitoring device is communicated with the first server and the electronic device. The intelligent bed monitoring device further includes a pressure sensor, a processor, and a controlling module. The processor is electrically connected with the pressure sensor and the controlling module. The pressure sensor is configured to detect a vibration signal. The processor is configured to generate a physiological information according to the vibration signal, and transmit the physiological information to the first server via a communication interface. The controlling module is configured to control the bed board to adjust the bed board into a plurality of modes.

Abstract: An electrical bed is provided in this disclosure. The electrical bed includes a frame, a plurality of bed plates, a first connector and a first driving unit. The frame includes a plurality of bed stands, and the bed plates are arranged on the bed stands. The first connector includes a first rotating member, a first connecting arm, a first transmission bar and a second connecting arm. The first rotating member is pivotally connected with the first connecting arm, and the first connecting arm is sleeved with the first transmission bar and fixed relative to each other, and the second connecting arm is sleeved with the first transmission bar and fixed relative to each other. The first driving unit is arranged to drive the first transmission bar to rotate and adjust one of the bed plates.

Abstract: An intelligent bed monitoring device and method are provided in this disclosure. The device is applied to a bed frame, and the bed frame includes a first bed board and a second bed board. The intelligent bed monitoring device includes a plurality of audio sensors, a processor and a controlling module. The processor is electrically connected to the audio sensors and the controlling module. The audio sensors are configured to detect a plurality of audio signals. The processor is configured to receive the audio signals, and calculate an audio source direction according to the audio signals. The controlling module is configured to control one of the first bed board and the second bed board according to the audio source direction to adjust one of the first bed board and the second bed board into a plurality of modes.

Abstract: A speaker includes a sound box, a speaker module, and a heat pipe. The sound box includes a first opening and a second opening. The speaker module is hermetically connected to the first opening. The heat pipe is hermetically connected to the second opening. The heat pipe includes a first end and a second end. The first end is located in the sound box. The second end is exposed to the second opening. The speaker module is fixedly connected to at least part of an outer wall of the heat pipe. In the speaker, a hollow heat pipe is fixedly connected to the speaker module, and vibration of the speaker module drives air in the heat pipe to flow to dissipate heat from the heat pipe. Further, the cold heat pipe carries heat away from the speaker module through heat transfer, thereby dissipating heat from the speaker.

Abstract: A thermal protecting device of a speaker is provided. The thermal protecting device includes an amplifier and a temperature detecting unit. An input end of the amplifier receives an audio reference signal, an output end of the amplifier provides an audio output signal to the speaker. The temperature detecting unit receives an audio input signal to provide the audio reference signal, and detects an operation temperature of the speaker to determine an amplitude of the audio reference signal. The amplitude is inversely proportional to the operation temperature.

Abstract: A thermal protecting device of a speaker is provided. The thermal protecting device includes an amplifier and a temperature detecting unit. An input end of the amplifier receives an audio reference signal, an output end of the amplifier provides an audio output signal to the speaker. The temperature detecting unit receives an audio input signal to provide the audio reference signal, and detects an operation temperature of the speaker to determine an amplitude of the audio reference signal. The amplitude is inversely proportional to the operation temperature.

Abstract: A hollow stainless syringe needle is coated with a layer of Zirconium or Zirconia to form a smooth inner surface and outer surface. With the Zirconium or Zirconia coated needle, a smooth wound shall be caused in human tissue. The human tissue shall recover more quickly for a smooth wound than an irregular one caused by a traditional stainless syringe needle. In addition, when used in human tissue biopsy, tissue's integrity and consistency can be maintained for different samples taken from the present invention, and thereafter test data comparison accuracy is ensured over the samples.

Abstract: The present invention relates to improved preparation of Bromelain in which the Bromelain is coated with an organic network polymer constructed by cross-linkage between organic acids and polysaccharides. The present invention also relates to a pharmaceutical composition comprising the present Bromelain preparation for treating inflammation, alleviating pains, and/or enhancing immuno-defense in a subject who needs such treatment.