Abstract: A method and a related mobile terminal for data transmission include: establishing a direct communication connection to a second mobile terminal; transmitting first user data to the second mobile terminal through the direct communication connection; detecting the transmission status of first user data during the transmission of the first user data; accessing to a network-side storage device based on a determination that the transmission status detected is abnormal; sending a first storage request to the network-side storage device, wherein the first storage request includes second user data and the user identifier of the second mobile terminal, the second user data is a part of the first user data that is not transmitted to the second mobile terminal due to transmission abnormality.

Abstract: Functionally altered biological mechanisms arising from disease-associated polymorphisms remain difficult to characterize when those variants are intergenic, or, fall between genes. The present invention uses computational modelling of single-nucleotide polymorphisms (SNPs) drawn from genome-wide association studies (GWAS) or other databases to identify SNP pairs, including SNP pairs where at least one SNP is outside a protein-coding region of a gene, having convergent biological mechanisms. Additional databases, including genomic databases, biological regulatory databases, and databases related to molecular function, are used to further identify and validate the similarity of the biological mechanisms of the SNP pairs. Prioritized SNP pairs having increased similarity of biological mechanisms are then used to identify disease mechanisms, candidate therapeutic drugs, and candidate therapeutic targets among downstream effectors of intergenic SNPs.

Abstract: A method and a related mobile terminal for data transmission include: establishing a direct communication connection to a second mobile terminal; transmitting first user data to the second mobile terminal through the direct communication connection; detecting the transmission status of first user data during the transmission of the first user data; accessing to a network-side storage device based on a determination that the transmission status detected is abnormal; sending a first storage request to the network-side storage device, wherein the first storage request includes second user data and the user identifier of the second mobile terminal, the second user data is a part of the first user data that is not transmitted to the second mobile terminal due to transmission abnormality.

Abstract: The present disclosure provides a communication method and device. The method includes that: when an instruction for instructing transmitting user data via a direct communication connection is received, user verification information is acquired, the user verification information including verification data input through a first terminal; the user verification information is sent to a second terminal; when verification success information is received from the second terminal, a first direct communication connection is established with the second terminal; and the user data is sent to the second terminal via the first direct communication connection.

Abstract: Impedance matching circuits and methods for radio frequency (RF) transmission coil are disclosed. An example impedance matching circuit includes a coil matching circuit, a RF power detection circuit, and a spectrometer. The spectrometer outputs an output voltage reversely applied on a varactor diode of the coil matching circuit. An impedance of the coil matching circuit is changed based on the output voltage. The spectrometer outputs a RF transmission signal to the RF power detection circuit, receives a power of a RF reflected signal corresponded to the output voltages. The spectrometer receives powers of different RF reflected signals corresponded to different output voltages, and assigns an output voltage corresponded to a minimum power of the RF reflected signals as an impedance matching voltage, where an equivalent impedance of the coil matching circuit and the RF transmission coil matches with an impedance of RF transmission lines.

Abstract: Methods, systems, and computer-readable storage mediums for correcting time in a nuclear magnetic resonance device are provided. In one aspect, a method includes obtaining respective transmission time delays of three gradient pulse signals that are generated by a three-dimensional gradient subsystem of the nuclear magnetic resonance device and include a slice-selection gradient signal, a phase-encoding gradient signal, and a frequency-encoding gradient signal, determining a time correction value according to the obtained respective transmission time delays of the three gradient pulse signals, and correcting a respective output time of each of the three gradient pulse signals, an output time of a radio-frequency (RF) pulse signal generated by a RF transmitting subsystem of the nuclear magnetic resonance device, and a reception time of a magnetic resonance signal received by a RF receiving subsystem in a scanning cycle according to the determined time correction value.

Abstract: A method of calibrating a RF power of a magnetic resonance imaging system is provided. With a fixed time-domain length of RF pulses, a RF pulse amplitude having a larger step size increment is selected to perform a traversal scanning to obtain FID signal values corresponding to different RF pulse amplitudes. In subsequent traversal scanning, the step size is continuously scaled down, and a start value and an end value are re-determined to continuously narrow a range for the subsequent traversal scanning, which may quickly and accurately determine a RF pulse amplitude corresponding to a 90° flip angle that can be obtained from a RF pulse amplitude corresponding to a maximum FID signal value in a last traversal scanning. A linear relationship between a flip angle and a RF pulse amplitude is obtained according to the 90° flip angle and its corresponding RF pulse amplitude for calibrating a RF power.

Abstract: Impedance matching circuits and methods for radio frequency (RF) transmission coil are disclosed. An example impedance matching circuit includes a coil matching circuit, a RF power detection circuit, and a spectrometer. The spectrometer outputs an output voltage reversely applied on a varactor diode of the coil matching circuit. An impedance of the coil matching circuit is changed based on the output voltage. The spectrometer outputs a RF transmission signal to the RF power detection circuit, receives a power of a RF reflected signal corresponded to the output voltages. The spectrometer receives powers of different RF reflected signals corresponded to different output voltages, and assigns an output voltage corresponded to a minimum power of the RF reflected signals as an impedance matching voltage, where an equivalent impedance of the coil matching circuit and the RF transmission coil matches with an impedance of RF transmission lines.