43results about How to "Establish effective" patented technology

The invention relates to Device-to-Device (D2D) communication in wireless networks. In a wireless communication network, a D2d link is set up using a modified Random Access (RACH) procedure. The conventional RACH procedure is modified to enable a D2D-capable UE (11) to indicate its capability to other UEs (12), to receive additional information from a base station (20), and to enable the handshake procedure used to establish a D2D link. Broadcast system information may additionally be modified to enable D2D links between UEs (11, 12) in the same or different coverage areas, taking into consideration the RRC UE states (RRC_Connected or RRC_Idle). The proposed modifications to the broadcast system information include: an indication of D2D link opportunities with other UEs under a different coverage area to that of the D2D capable UE; and RACH parameters in the coverage area of the D2D capable UE, to indicate the listening period for the D2D link.

The invention relates to a method for building the immortalized preadipocytes of chicken, which can be used for solving the problems that the stable and reliable result is difficult to obtain by the research as the preadipocytes of primary chicken can not go down to the future generation infinitely and is heterogeneous, cells with different sources have different genetic backgrounds, and the like. The method comprises the steps of firstly, cloning human chicken telomerase reverse transcriptase (chTERT) genes; secondly, cloning chicken telomerase (chTR) RNA genes; thirdly, constructing a reverse transcribing virus expression vector; fourthly, packaging and preparing reverse transcribing virus; and fifthly, obtaining an immortalized chicken preadipocyte system ICPA-1 and an immortalized chicken preadipocyte system ICPA-2. The method is applied to the field of building the immortalized preadipocytes of the chicken.

The invention belongs to the field of medicine technology, which relates to a medical animal model, in particular to an establishment method for a plateau intestinal barrier injury rat model. The method comprises the following steps of: firstly, feeding healthy rats for 5-7 days in a plain environment, then carrying out the animal treadmill adaptive training to obtain plain adaptive rats, and then carrying out plain intervention training for the plain adaptive rats by applying exercise load, so that the plain adaptive rats can reach to be in a fatigue stress state; continuously feeding the rats which reach to be in the fatigue stress state in a plateau hypobaric hypoxia simulation environment to obtain the experimental plateau intestinal barrier injury rat model. The method can establish the stable plateau intestinal barrier injury rat model, so that the experimental foundation for further research on the plateau intestinal injury mechanism is laid.

The invention discloses a method of building an oil dredging well channel, and relates to the field of oil and gas exploitation. The method comprises the following steps that construction vehicles arereasonably placed according to the practical situation of a well site, and a water-tank lorry, among the construction vehicles, is connected with a wellhead casing pipe valve by a high-pressure waterhose in a slipping mode, so that an oil well is detected; a well plugging device, a spray-proof pipe, a connecting-opening conversion device, a wellhead conversion sealer and an anti-channeling limiter are mounted on a wellhead of the oil well in sequence; and a tubular column is lowered into a tight-pull position in a well shaft by a crane among the construction vehicles, wherein the tubular column comprises a nozzle with spray-holes in the radial direction, a plurality of quick connected hollow nipples and the like from bottom to top. Thick or congealed crude oil on the wall surface of a casing pipe can be treated in a place with a relatively small area in the well site, and then the oil dredging channel is quickly built; and compared with minor repair operation, the operation cost is effectively reduced.

The invention relates to a method for analyzing maca marker metabolites based on liquid mass spectrometry metabolomics. The present invention extracts maca metabolites through methanol, performs UHPLC-Q Exactive Orbitrap LC-MS analysis after pretreatment, uses Compound Discover to process data, and then imports data into SIMCA14.0 software, uses principal component analysis (PCA), partial least binary Multiply discriminant analysis (PLS-DA) and orthogonal-partial least squares discriminant analysis (OPLS-DA) to analyze the data to find differential metabolites; use the permutation permutation test method to test the effectiveness of the PLS-DA model, and the results show that the model is established efficient. The analysis method of the invention is simple to operate, and the metabolites of different phenotypes of maca are searched, so as to be used for distinguishing and identifying different phenotypes of maca.

The embodiment of the invention provides a reliable method and device for identifying security attributes of application programs. The device comprises a feature file receiving module, a judging module, a second service end identifying module and a reference database identifying module, wherein the feature file receiving module is suitable for receiving feature files of the application program submitted by a terminal; the judging module is suitable for judging whether a second service end can be connected or not in current, if so, the second service end identifying module is executed, and if not, the reference database identifying module is executed; the second service end identifying module is suitable for acquiring the security attributes corresponding to the application program according to the feature files through accessing the second service end; and the reference database identifying module is suitable for accessing a reference database preset at a first service end, and acquiring the security attributes corresponding to the application program according to the feature files. The reference database is preset by the following modules: a loading module and a storing module, wherein the loading module is suitable for accessing the second service end and loading the reference database; the storing module is suitable for storing the reference database at the first service end; and the reference database is updated by means of offline loading.

The invention belongs to the technical field of software defect prediction, and particularly relates to a software defect number predicting method based on feature selection and ensemble learning. For solving the problems that in prediction of the software defect number, irrelevant module features damage the performance of a defect prediction model, regression models have different prediction abilities, an optimal regression algorithm cannot be selected and the like, the method comprises the following steps: filtering irrelevant and redundant features by using a feature selecting method based on a package mode; then using six different regression algorithms including a linear regression algorithm, a ridge regression algorithm, a decision tree regression algorithm, a gradient boosting regression algorithm, a nearest neighbor regression algorithm and a multilayered sensor regression algorithm, an ensemble learning technology is used, and a comprehensive regression model is constructed according to data instances of which features are screened. Compared with a single regression model, the software defect number predicting method based on feature selection and ensemble learning has the characteristic that the accuracy of software defect number prediction is improved.

The invention provides a method and a system for mass base station establishment. The method comprises the following steps: a customer service terminal utilizes an export function to export parameters of a typical base station in the form of an excel table; the customer service terminal corrects the parameters in the excel table, generates configuration parameters required for the mass base station establishment and transmits the configuration parameters to a database; the database obtains an aggregate of base station numbers required for the mass base station establishment as well as an aggregate of network addresses of virtual private networks; and the database carries out the mass base station establishment according to the received configuration parameters required for the mass base station establishment, the obtained aggregate of the base station numbers required for the mass base station establishment and the obtained aggregate of the network addresses of the virtual private networks. The method can realize the mass, effective and simple base station establishment, is easy to be operated, leads to easy finding of problems occurring during the mass base station establishment and has strong expandability.