35results about How to "Real-time monitoring of concentration changes" patented technology

A method for monitoring particulate matter in the atmospheric environment of highway engineering, characterized in that a monitoring device for particulate matter (PM2.5) in the atmospheric environment of highway engineering is used to monitor PM2.5 in the atmospheric environment of highway engineering, and the device includes a dust equipment chassis (1), a light receiving element (2), receiving plate (3), scattering plate (4), light emitting element (5), first exhaust pipeline (6), second exhaust pipeline (7), first fan motor (8), The second fan motor (9), the first exhaust port (10), the second exhaust port (11), the first exhaust channel (12), the second exhaust channel (13), the first air inlet ( 14), the second air inlet (15), the first gas collection port (16), the air supply channel (17), the second gas collection port (18), the gas distribution channel (19), and the particle retainer (20). The method can measure the PM2.5 concentration independently, and can also measure the PM2.5 concentration in a vehicle-mounted mobile type.

The invention relates to a column plate temperature based distillation process global concentration online observer and method. The observer comprises temperature measuring devices, a local temperature measuring point offline selection analyzing module, a data storage device and a global concentration online observer. The local temperature measuring point offline selection analyzing module and thedata storage device are connected with the temperature measuring devices which are connected with a distillation column, and the global concentration online observer is connected with the data storage device. The local temperature measuring point offline selection analyzing module comprises a concentration distribution description module for generating analysis data, a concentration / temperature conversion module for converting concentration data into temperature data, a sensitivity matrix analysis module for first measuring point selection and a to-be-selected column plate correlation analysis module for selecting measuring points not exceeding concentration distribution parameter quantity. By local temperature measuring point selection analysis of the distillation column, online observation of material concentrations of all column plates can be realized through mounting of temperature measuring devices at limited column plate positions, and high accuracy in global concentration observation, small mounting quantity of the measuring devices and low cost are realized.

The invention provides a method for monitoring atmospheric environment dust in the engineering construction. The method is characterized by adopting a dust monitoring device for monitoring the atmospheric environment dust in engineering construction. The device comprises a dust equipment case (1), an acceptance element (2), a receiving plate (3), a scattering plate (4), a light emission element (5), a first exhaust pipeline (6), a second exhaust pipeline (7), a first fan motor (8), a second fan motor (9), a first exhaust opening (10), a second exhaust opening (11), a first exhaust passage (12), a second exhaust passage (13), a first air inlet (14), a second air inlet (15), an air production opening (16), a data acquisition and storage system and a power supply system. The method is simple,has high measurement precision, and can achieve a self-cleaning function of equipment under the condition of dust heavy pollution, and can be used for independently measuring the dust concentration and performing vehicle-mounted mobile dust concentration measurement.

The invention discloses a vertical flow constructed wetland sewage treatment system and a method thereof for real-time control and management of nitrification and denitrification denitrification processes. The treatment system includes a vertical flow constructed wetland subsystem and a dynamic data acquisition subsystem; the vertical flow The constructed wetland subsystem includes wetland matrix and wetland plants; the vertical flow constructed wetland subsystem is provided with an adjustable water outlet connected to the bottom and higher than the bottom; the dynamic data collection subsystem includes The detection part in the middle of the matrix and the analysis part electrically connected with the detection part. The vertical flow constructed wetland sewage treatment system provided by the present invention can monitor the NH in the vertical flow constructed wetland system in real time 4 + -N, NO 3 ‑ ‑N concentration changes and water quality conditions such as DO, pH, and Eh can be used to adjust and respond to the reaction situation in a timely manner based on the basis when treating sewage with complex and variable water quality, improve the removal efficiency of nitrogen pollutants, and maintain The stability of system operation.

The invention discloses a Raman-fluorescent dual-mode nano-probe for detecting calcium ions in vitro and in living cells or imaging. The detection method is based on the "on-off" conversion of surface-enhanced Raman scattering and fluorescence resonance energy transfer, by assembling Ca on nano-venus 2+ The specific enzyme chain and its partially complementary substrate chain modified with fluorescent groups construct dual-mode nanoprobes. This method combines the advantages of SERS ultra-sensitivity and fluorescence visualization, has good specificity and sensitivity, and has good versatility in various cell lines.