Tenneco (suzhou) Emission System Co., Ltd.

Suzhou Helmen Precision Instruments Co., Ltd.

Ping Wang

Kai Jiang

Yawei Tang

Lin Wang

Tao Zhang

Cong Wang

Gaofeng Fan

Zhenqiu Yang

Chao Gong

Qiang Sun

Biao Du

Suheng Tian

Embodiments of the present disclosure provide a system for continuous scanning monitoring and analysis based on a discrete three-dimensional fluorescence technology. The system comprises a high-pressure capillary gel electrophoresis mechanism configured to enable passages of different lengths of STR sequence fragments and nucleic acid gene fragments in an energized state; a sampling window unit configured to assemble a plurality of capillary tubes and a plurality of detection optical fibers shared by an excitation light and excited light; and a detection window unit configured to assemble the plurality of detection optical fibers and a fluorescence signal detection unit. The fluorescence signal detection unit is configured to output a plurality of single excitation light sources and obtain fluorescence signals.

Systems for continuous scanning monitoring and analysis based on discrete three-dimensional fluorescence technology

The present application discloses an exhaust gas after-treatment mixing device including a first plate, a second plate and a mixer. The mixer includes a first space, a second space and a third space located between the first space and the second space. Top portions of the first space and the second space are in communication with the third space. The mixer includes a first raised portion protruding into the third space and a second raised portion located below the first raised portion. A fourth space is formed between the first raised portion and the second raised portion. As a result, the distance and time of urea evaporation is increased and the mixing uniformity is improved. Besides, a package with the exhaust gas after-treatment mixing device is also provided.

Exhaust gas after-treatment mixing device and package therefor

A fluid delivery device, comprising an integrated cabinet, a pump installed in the integrated cabinet, an inlet pipeline connected to the pump, and an outlet pipeline connected to the pump; the pump comprises a motor located at the bottom portion of the integrated cabinet, a pump head located at the top portion of the integrated cabinet, and a magnetic coupling portion located between the motor and the pump head; the pump head, the magnetic coupling portion and the motor are arranged in a sequence from top to bottom; and the pump head is provided with a U-shaped flow channel and a gear mechanism therein located at the bottommost portion of the flow channel. The fluid delivery device eliminates bubbles in the solution accumulated in the pump, thus ensuring a working efficiency of fluid delivery of the pump, and ensuring precise control of a delivery amount.

Fluid delivery device

The present invention relates to a method for detecting time-resolved fluorescence based on a principle of phase balanced frequency multiplication modulation. A stimulating light source modulated by using a baseband signal acts on a to-be-measured target to trigger fluorescence, so that the fluorescence intensifies and decays periodically; then, a frequency-doubled square signal is used to control a sampling period and divide an ascending period of the fluorescence into two and a decay period of the fluorescence into two; after independent sampling is performed separately, sampling differences of the two parts are separately calculated and then added to obtain an intensity representative value of a fluorescence signal and to obtain a concentration value of the to-be-measured target. The method in the present invention can not only likewise cancel fluorescence interference of a substrate in a sample, but also can cancel ambient bias light, power-frequency interference of a spatial electromagnetic wave or other signals, and therefore improves signal intensity in fluorescence measurement on the detection sample, has an advantage that cannot be accomplished in a conventional time-resolved fluorescence method, and can be applied in fluorescence intensity detection of a target in fields such as biology, chemistry, and medicine.

Method for detecting time-resolved fluorescence based on principle of phase balanced frequency multiplication modulation

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Suzhou, China

Ping Wang