Abstract: A measuring device and method for horizontal dynamic impedance of specified foundation depth based on differential response analysis of pulse excitation. The measuring method is realized based on the measuring device. Two rigid piles with different lengths are embedded into different foundation depths. Motion characteristics of the two rigid piles in the process of collision impact with the outside are different under the same pulse excitation. Dynamic impedance of specified foundation depth is deduced from the formula according to the differential response. Single-degree-of-freedom oscillators are arranged on the pile heads of the two piles, and strain gauges are arranged on the bottoms of the single-degree-of-freedom oscillators to obtain stress states of the single-degree-of-freedom oscillators, thereby calculating the relative displacements of the single-degree-of-freedom oscillators. This is simple in structure, reliable in measurement and convenient in data collection and processing.

Abstract: The present invention provides a trimmer, the trimmer comprises a handle assembly, a power mechanism installed at one end of the handle assembly, and a blade assembly connected to the power mechanism. The power mechanism has a housing assembly, a motor received in the housing assembly, and a power transmission assembly mounted on the housing assembly. The motor is an external rotor motor with a diameter greater than or equal to 50 mm. The power transmission assembly has pinion coaxially sleeved on an output shaft of the motor and a big gear meshing with the small gear, and a transmission ratio of the small gear to the big gear is less than 6. By such arrangement, the trimmer can obtain the best output effect under a. condition that the output power of the motor is unchanged.

Abstract: An apparatus and method for measuring a structural angular acceleration based on dynamic centrifugal force measurement belong to the technical field of angular acceleration measurement. The apparatus has a solid ball. The solid ball can move freely along the radial direction of the outer wall packaging hood. The elastic block is used as a stress base. A rod for lateral limit and connection is used for connecting the rigid block and a pulley and limiting the displacement of solid ball so that the solid ball can only move longitudinally along the apparatus. The rigid block can move freely due to the pulley. Measurement of a transient angular acceleration is converted into dynamic measurement of the centrifugal force of the solid ball. Through the above design, the dynamic angular acceleration of the structure caused by dynamic load can be relatively accurately calculated.

Abstract: A measuring device and method for horizontal dynamic impedance of specified foundation depth based on differential response analysis of pulse excitation. The measuring method is realized based on the measuring device. Two rigid piles with different lengths are embedded into different foundation depths. Motion characteristics of the two rigid piles in the process of collision impact with the outside are different under the same pulse excitation. Dynamic impedance of specified foundation depth is deduced from the formula according to the differential response. Single-degree-of-freedom oscillators are arranged on the pile heads of the two piles, and strain gauges are arranged on the bottoms of the single-degree-of-freedom oscillators to obtain stress states of the single-degree-of-freedom oscillators, thereby calculating the relative displacements of the single-degree-of-freedom oscillators. This is simple in structure, reliable in measurement and convenient in data collection and processing.

Abstract: The present invention relates to a method for preparing LiCa-LSX molecular sieves with mixed cations and applications thereof. The method comprises the following steps; preparing CaLSX molecular sieves; replacing all Na+ in NaLSX molecular sieves with Ca2+ by multiple times of exchange with a solution containing Ca2+; changing CaLSX molecular sieves to LiCa-LSX molecular sieves by exchange with Li+, wherein a solution containing Li+ is used, and the exchanged sample is directly filtered in vacuum without washing and dried at normal temperature; and activating and pre-treating the sample to obtain LiCa-LSX molecular sieves with mixed cations. The LiCa-LSX molecular sieves can be used as selective adsorbents for N2 and O2 in oxygen production processes by PSA/VPSA. In the present invention, the loss of Li+ caused by the replacement of Li+ with H+ because of hydrolysis is avoided, the cost is reduced and the treatment time is short.

Abstract: The present invention relates to a method for preparing LiCa-LSX molecular sieves with mixed cations and applications thereof. The method comprises the following steps; preparing CaLSX molecular sieves; replacing all Na+ in NaLSX molecular sieves with Ca2+ by multiple times of exchange with a solution containing Ca2+; changing CaLSX molecular sieves to LiCa-LSX molecular sieves by exchange with Li+, wherein a solution containing Li+ is used, and the exchanged sample is directly filtered in vacuum without washing and dried at normal temperature; and activating and pre-treating the sample to obtain LiCa-LSX molecular sieves with mixed cations. The LiCa-LSX molecular sieves can be used as selective adsorbents for N2 and O2 in oxygen production processes by PSA/VPSA. In the present invention, the loss of Li+ caused by the replacement of Li+ with H+ because of hydrolysis is avoided, the cost is reduced and the treatment time is short.

Abstract: A double-insulated motor and pinion device including a motor, motor-fixing seat, pinion, pinion sleeve and double insulation sleeve. The motor and motor-fixing seat are connected together to form a motor assembly. The pinion is mounted on a motor shaft. The pinion sleeve is mounted under the pinion, and the double insulation sleeve is connected under the pinion sleeve. The pinion, pinion sleeve, and double insulation sleeve are mounted together to form a pinion assembly. The pinion assembly is mounted on the motor assembly. It can solve the requirement of basic insulation and reinforced insulation of a series of high voltage direct current products by adding two insulation parts, while reducing space and lowering cost.

Abstract: A method and an apparatus for obtaining information from a target base station are disclosed. The method includes: when a source base station needs to obtain information from a target base station, receiving, through an air interface, a system message in a certain format broadcast by the target base station; and parsing the system message, and obtaining required information. Through the present invention, an LTE base station can communicate with another LTE base station or with a heterogeneous base station directly through an air interface, thereby increasing the efficiency of communication between base stations.

Abstract: A double-insulated motor and pinion device including a motor, motor-fixing seat, pinion, pinion sleeve and double insulation sleeve. The motor and motor-fixing seat are connected together to form a motor assembly. The pinion is mounted on a motor shaft. The pinion sleeve is mounted under the pinion, and the double insulation sleeve is connected under the pinion sleeve. The pinion, pinion sleeve, and double insulation sleeve are mounted together to form a pinion assembly. The pinion assembly is mounted on the motor assembly. It can solve the requirement of basic insulation and reinforced insulation of a series of high voltage direct current products by adding two insulation parts, while reducing space and lowering cost.

Abstract: A method and an apparatus for obtaining information from a target base station are disclosed. The method includes: when a source base station needs to obtain information from a target base station, receiving, through an air interface, a system message in a certain format broadcast by the target base station; and parsing the system message, and obtaining required information. Through the present invention, an LTE base station can communicate with another LTE base station or with a heterogeneous base station directly through an air interface, thereby increasing the efficiency of communication between base stations.

Abstract: A method and an apparatus for obtaining information from a target base station are disclosed. The method includes: when a source base station needs to obtain information from a target base station, receiving, through an air interface, a system message in a certain format broadcast by the target base station; and parsing the system message, and obtaining required information. Through the present invention, an LTE base station can communicate with another LTE base station or with a heterogeneous base station directly through an air interface, thereby increasing the efficiency of communication between base stations.

Abstract: A load sharing method, device, and system are disclosed. A first base station obtains a current load of the first base station. The first base station is connected to a mobility management entity (MME). The first base station selects a second base station that is also connected to the MME when the current load of the first base station exceeds a preset load threshold. Information of a load to be shared from the first base station to the second base station is transmitted so that the load to be shared can be shared with the second base station without switching a user equipment (UE) served by the first base station to the second base station.

Abstract: A load sharing method, device, and system are provided in the disclosure. The method includes obtaining a current load value. If the current load value exceeds a preset load threshold value, a sharing base station is selected. Information of a shared load that needs to be shared is transmitted to the selected sharing base station.

Abstract: A method and an apparatus for obtaining information from a target base station are disclosed. The method includes: when a source base station needs to obtain information from a target base station, receiving, through an air interface, a system message in a certain format broadcast by the target base station; and parsing the system message, and obtaining required information. Through the present invention, an LTE base station can communicate with another LTE base station or with a heterogeneous base station directly through an air interface, thereby increasing the efficiency of communication between base stations.

Abstract: A load sharing method, device, and system are provided in the disclosure. The method includes obtaining a current load value. If the current load value exceeds a preset load threshold value, a sharing base station is selected. Information of a shared load that needs to be shared is transmitted to the selected sharing base station.

Abstract: A process is disclosed for improving the environmental stress crack resistance and other desirable properties of impact-resistant, elastomer-modified monovinylaromatic compounds, said process utilizing a combination of polymerization initiators, including perketals and peroxycarbonates.

Abstract: A process is disclosed for improving the environmental stress crack resistance and other desirable properties of impact-resistant, elastomer-modified monovinylaromatic compounds, said process utilizing a combination of polymerization initiators, including perketals and peroxycarbonates.