Time filter

Source Type

Shenzhen, China

Shenzhen University is a public university established in 1983 located in Shenzhen, Guangdong, China. It is accredited by the State Council of the People's Republic of China and is funded by the Shenzhen government. The university took its first enrollment the same year at what Deng Xiaoping called "Shenzhen Speed". Wikipedia.

Shenzhen University | Date: 2014-04-02

The present invention is applicable to the field of multimedia technologies and provides a record file editing method and system, where the method includes: performing fragmentation on an audio file to acquire multiple audio fragments; performing fragment cutting on the multiple acquired audio fragments; storing a fragment time period, a quantity of audio fragments, a fragment cutting time point, and an audio fragment number in a preset record file of the fragment cutting time point; reading each fragment cutting time point from the record file of the fragment cutting time point, performing time mapping on the fragment cutting time point, and storing, in an array, a new fragment cutting time point that is obtained after the mapping; and reading a prestored interaction mapping file between a document and audio, and performing an adjustment on a time point in the interaction mapping file between a document and audio according to the new fragment cutting time point. According to the present invention, a problem that inconsecutive edited document files and audio are not synchronized during playback can be effectively resolved.

A method and primer for quantitative assay of microRNAs (miRNAs) and application of the same are provided. In this method, miRNAs are subjected to polyadenylation and subsequent reverse transcription with miRNA-specific S-Oligo(dT) RT primers. The miRNA is then assayed in a real-time PCR quantitative assay using a miRNA-specific forward primer, a universal reverse primer and a universal probe. The methods in the present invention have improved sensitivity, specificity, and efficiency in miRNA quantification assay, providing a simple, high-throughput, and cost-effective tool applicable for the early diagnosis and prognosis of many severe diseases such as malignancy.

A method for modifying a positive electrode material for a lithium-ion battery. The method includes: a) stirring a liquid polyacrylonitrile (LPAN) solution at the temperature of between 80 and 300 C. for between 8 and 72 h to yield a cyclized LPAN solution; b) adding positive electrode material for a lithium-ion battery, in a powder form, to the cyclized LPAN solution, and evenly mixing a resulting mixture; c) grinding the mixture, and drying the mixture at room temperature; and d) calcining the mixture at the temperature of between 500 and 1800 C. for between 6 and 24 h in the presence of an inert gas to form a graphene-like structure by the cyclized LPAN. The graphene-like structure is evenly distributed in the positive electrode material of the lithium-ion battery to yield a graphene-like structure modified positive electrode material of the lithium-ion battery.

Shenzhen University | Date: 2015-04-17

A mechanically rotating intravascular ultrasound probe relates to the technical field of medical devices, and aims to provide a forward-looking mechanically rotating intravascular ultrasound probe having a small volume, a high image resolution and good imaging stability. The intravascular ultrasound probe includes a catheter, an ultrasonic transducer disposed at a front end of a cavity of the catheter and a driving apparatus that drives the ultrasonic transducer to rotate mechanically. The driving apparatus is a micro motor disposed in the cavity of the catheter, including a rotor and a stator. The ultrasonic transducer is installed on top of the rotor and electrically connected to the rotor, and the rotor is also electrically connected to the stator; the catheter is a magnetic metal tube, and a front end thereof is enclosed by an acoustic window which has a spherical tip and allows ultrasonic waves of the ultrasonic transducer to pass through; the acoustic window is filled with an ionic liquid having a function of a ultrasonic coupling agent. The ultrasound probe solves a problem of rotation torsion of an image when the catheter passes through a lesion with high-grade stenosis or a curved blood vessel section, and achieves forward scanning imaging and side scanning imaging for a blood vessel wall.

Shenzhen University | Date: 2013-01-09

A photonic crystal waveguide TM-polarization splitter, comprising a photonic crystal waveguide with a completely forbidden band; after the input end (

Discover hidden collaborations