A miniaturized fiber bragg grating accelerometer based on a thin polyurethane shell is designed and tested. The FBG accelerometer is based on spring-mass structure. The elastic body is a thin polyurethane cylindrical shell. By inserting the mass into the inner of the shell, the accelerometer axial size is reduced by half compared with traditional ones in which masses are exposed outside. The theoretical performance limit of the miniaturized accelerometer is discussed. Test results show the miniaturized accelerometer has similar sensing performance as the traditional one. Size of the miniaturized accelerometer is Φ23 mm × 17 mm, sensitivity over the flat frequency response zone is 54 pm/g, and resonant frequency is 480 Hz. Furthermore, orthogonal crosstalk of the miniaturized accelerometer is -17.75 dB which is 3 dB lower than the traditional one. Thus, this miniaturized design can reduce both size and orthogonal crosstalk of accelerometers based on elastic shells. This miniaturized structure can also be used in other fiber optic accelerometers based on shells.

Provided is a method for establishing and processing high-speed train demand data instances, comprising: obtaining a pre-established demand metamodel; said demand metamodel and the structure of said high-speed train having a correlation, and said demand metamodel comprising a demand object, object properties, and property association information; according to the demand object corresponding to said demand metamodel, determining instance basis information of said demand object; performing a valuation operation on the object properties of the demand object corresponding to the demand metamodel as well as the property association information to obtain the demand data instances corresponding to said demand object; saving each of the demand data instances in a database to generate a demand instance database; responding to an instruction to invoke said demand instance database, and executing on said demand instance database an operation corresponding to said instruction. The method effectively increases efficiency in demand data acquisition, and efficiency in the development of high-speed trains, and reduces waste of human labor and resources.

A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a femto cell. The apparatus determines MBSFN subframes at a frequency of a first base station. The first base station has a first power class, the apparatus has a second power class lower than the first power class. The apparatus determines, in the MBSFN subframes, a first set of symbols used for control information and a second set of symbols used for MBSFN signals by the first base station. The apparatus transmits, at the frequency, unicast control information in a subset of the first set of symbols. The apparatus transmits, at the frequency, unicast data with a reduced power in the second set of symbols.

The present invention discloses a method and device for responding to a request, and a distributed file system, the method comprising: receiving from a file access client terminal a request of an operation target file; the full path of the target file being carried in the request; determining the file identifier and file location register identifier corresponding to the full path; the file location register which corresponds to the file location register identifier being used for providing location information of a data block of the target file; sending the file identifier and the file location register identifier to the file access client. The present invention solves the problem of a distributed file system making high requirements on file location register hardware, reduces the requirements on file location register hardware, and improves system stability.

The use of Bacteroides bacterial strains in the preparation of a formulation for the treatment and/or prevention of coronary artery disease, or for decreasing the level of blood glucose or lipids, or for ameliorating coronary atherosclerotic lesions, in a subject. A formulation (such as a pharmaceutical composition, a nutraceutical composition or a food composition) comprising Bacteroides bacteria. A method for the treatment and/or prevention of coronary artery disease, or for decreasing the level of blood glucose or lipids, or for ameliorating coronary atherosclerotic lesions, in a subject, comprising the step of administrating an effective amount of Bacteroides bacterial strains to a subject in need thereof.

Oxygen vacancy, a kind of native point defects in ferroelectric ceramics, usually causes an increase of the dielectric loss. Based on experimental observations, it is believed that all of the oxygen vacancies are an unfavorable factor for energy saving. By using molecular dynamics simulations, we show that the increase of coercive and saturated electric fields is due to the difficulty to switch local polarization near an oxygen vacancy, and so that a ferroelectric device has to sustain the rising consumption of energy. The simulation results also uncover how oxygen vacancies influence ferroelectric properties.

A system, computer readable medium, and method are provided for reducing the power consumption of a mobile device. The method includes the steps of detecting video content to be viewed in an application executed by the mobile device; detecting unwanted content associated with the video content; and operating the mobile device in a low-power mode during playback of the video content in the application in response to detecting the unwanted content. The mobile device may include a memory storing the application and a processor executing the application, which configures the processor to implement the method. Five techniques may be applied in the low-power mode to reduce power consumption including Dynamic Voltage and Frequency Scaling (DVFS), reducing resolution of content, reducing brightness of a display, masking content, and thread throttling. The low-power mode saves energy when playing back videos on the mobile device.

Embodiments of the present invention provide a network slicing management method, and a management unit and system based on the method. The method comprises: a first management unit determining requirement information of a subnet according to requirement information of network slicing, the network slicing comprising at least one subnet; the first management unit sending a first negotiation request to a second management unit, the first negotiation request carrying the requirement information of the subnet, and the first negotiation request being used to query a support status of the second management unit with respect to the requirement information of the subnet; and the second management unit determining that the second management unit can support the requirement information of the subnet, or the second management unit determining that the second management unit cannot support the requirement information of the subnet. According to the solution of the embodiments of the present invention, different management units can negotiate the requirement information of the subnet, such that network slicing management in a cross-manufacturer scenario becomes more flexible and effective.

Disclosed in embodiments of the present application are a method, device and equipment for use in polarization coding, capable of reducing the storage overhead of a system. The method comprises: obtaining a maximum master code sequence, the maximum master code sequence satisfying the property: if reading a first sequence having a code length of z from among the maximum master code sequence, the order of z ordinal numbers in the first sequence is the same as the order of the z ordinal numbers in the maximum master code sequence, wherein, Z=2z, z≤n, and Z is a positive integer; carrying out polarization coding using the maximum master code sequence.

A device (10) and a method for use in detecting electrocardio signals, the device comprising: an arm band (102), the arm band comprising a fabric electrode (1022) and a button (1024), which is connected to the fabric electrode (1022), wherein the fabric electrode (1022) is used for detecting an electrocardio signal; a filter amplifier (104), which is connected to the arm band (102) by means of the button (1024) and which is used for obtaining the electrocardio signal, and amplifying and filtering the electrocardio signal to obtain an electrocardio analog signal; and a single-chip microcomputer (106), which is connected to the filter amplifier (104) and which is used for obtaining the electrocardio analog signal, and converting the electrocardio analog signal into an electrocardio digital signal by means of an analog-digital converter (1062). Using said device (10) and method for detecting electrocardio signals may improve the convenience of operation and the accuracy of the detection device.

Provided by the present application are a method and apparatus for adjusting a service voice playback sequence, the specific solution being: acquiring a user-related historical call record according to identity information of a user; determining a service selection priority of the user according to the user-related historical call record; and adjusting a service voice playback sequence of the user according to the service selection priority. Compared to existing technology, the present application may acquire a user-related historical call record according to identity information of a user, and further predict a service selection priority of the user during a current call on the basis of a historical call so as to rearrange playback sequence of a service voice to be currently played back to the user. Playback of a service voice of a high service selection priority is prioritized, so that an adjustment mode is flexible and the time spent by the user listening to the service voice may be shortened, thereby reducing the occupation rate of a call circuit, improving the utilization efficiency of the circuit and saving time cost of the user and a service provider.