52results about How to "Strong detection signal" patented technology

A detector for electromagnetic radiation in the range 80 GHz to 4 THz comprises a laser light source (115) an optical modulator (13) arranged to modulate light from the laser light source (11) and a filter system (17) for selecting a defined range of frequencies of the modulated light. The optical modulator is an electroabsorption modulator (13) with an antenna (15) which is sensitive to electromagnetic radiation in the range 80 GHz to 4 THz. The signal received by the antenna (15) modulates the electric field across the electroabsorption modulator (13), whereby to modulate the light from the laser light source (11).

The invention provides a multiple immunohistochemical analysis kit for liver cancer, and a using method and application thereof, and relates to the technical field of multiple immunohistochemistry. The multiple immunohistochemical analysis kit limits that monoclonal antibody groups comprise a first monoclonal antibody group and a second monoclonal antibody group; the first monoclonal antibody group comprises a PanCK monoclonal antibody, a PDL1 monoclonal antibody, a CD8 monoclonal antibody, a CD66B monoclonal antibody and a CD163 monoclonal antibody; the second monoclonal antibody group comprises a PanCK monoclonal antibody, a PDL1 monoclonal antibody, a CD8 monoclonal antibody, a PD1 monoclonal antibody and a CD68 monoclonal antibody. According to the multiple immunohistochemical analysiskit provided by the invention, the paraffin sections of the human liver tissue in vitro are used as samples for detecting, and thus the effectiveness of the immune checkpoint inhibitor acting on theliver cancer is predicted.

The invention belongs to the field of biochemistry, in particular to the field of measurement or detection related to biochemistry. More particularly, the invention relates to a method for preparing aFISH probe of an EGFR gene, and a probe prepared by the method. The method of the invention uses BAC cloning, enzyme digestion interruption and asymmetric amplification to prepare a probe library, thereby effectively improving product sensitivity, specificity and signal strength.

A flow rate transducer of external multipoint induction type is prepared as setting a numbers of detection units at bottom surface of structure body, setting two detection unit at the same level in parallel along direction of fluid flowing to be a pair, setting elastic membrance (EM) end of through-hole on the same pair of detection unit to be opposite, setting through-hole direction on detection unit to be as the same direction with direction of fluid-flowing, setting piezoelectric ceramic plate (PCP) with electrode plate being connected to lead wire at one side of EM, arranging gap between wall of through-hole and PCP and lacking insulation plate in said gap.

The invention discloses a method and a device for testing tail end insulation of a primary winding of an electromagnetic voltage transformer, and aims to accurately and rapidly detect the insulation state of the tail end of a primary winding of an electromagnetic voltage transformer under a condition of electrification, achieve potential fault detection and detect the insulation state of the tailend of the primary winding according to zero sequence voltage variations caused when a vee connection winding of the electromagnetic voltage transformer is in short circuit. Short circuit switches areconnected with two ends of the vee connection winding of the electromagnetic voltage transformer, a waveform acquisition module is connected with a measuring or metering winding of the electromagnetic voltage transformer, the short circuit switches are controlled to be closed for a certain time and then cut off, at the same time three-phase voltage waveforms of the measuring or metering winding are acquired by using the waveform acquisition module and are combined to form zero sequence voltage waveforms, and the insulation state of the tail end of the primary winding connected with a harmonicwave eliminator, of the electromagnetic voltage transformer, is judged according to zero sequence voltages of the closed short circuit switches and the fluctuation situations of the zero sequence voltages of the closed short circuit switches.