9 results about "Light irradiance" patented technology

The present application belongs to the technical field of hair loss treatment, and particularly relates to a phototherapy and drug synergistic intervention system for androgenetic alopecia of human scalp. In the system, the drug is angelica extract with a concentration of 0.1-500 ug / mL; the phototherapy light source is a red light LED light source with a wavelength of 600-700 nm; the light irradiance is 2-100 mW / cm 2 ; the light dose is 2-20 J / cm 2 ; the irradiation mode is steady light or pulsed light; and the synergistic intervention mode is that the phototherapy and the drug application are performed synchronously or the phototherapy is performed within 0.5-2 hours after the drug application. Experiments show that the light-drug combined intervention significantly improves cell viability, ATP level, migration ability, IGF1 and VEGF secretion, reduces ROS and MDA levels, inhibits Caspase-3 activity, regulates BCL2 / BAX expression, activates Wnt, Hh and PI3K pathways, and inhibits BMP and TGF-beta pathways. The present application provides a treatment scheme with clear timing and standardization, and realizes safe, non-invasive and efficient hair loss treatment.

This invention discloses a multivariate fusion detection method for neonatal respiratory distress monitoring, belonging to the field of variable detection technology. It addresses the problem of inaccurately reflecting changes in true respiratory rhythm under scenarios with sudden changes in light intensity or frequent occlusion. By setting the light source observation time and dividing it into luminous and non-luminous phases, the method extracts the photoelectric response voltage to achieve temporal separation of ambient light and detection light. A photoelectric receiving occupancy level is constructed based on probe contact pressure, and the driving current of the light-emitting diode is compensated and adjusted based on this occupancy level. Ambient light irradiance data is collected under compensated driving conditions. Furthermore, the frequency of ambient light occlusion is analyzed by varying irradiance, and a joint judgment index is constructed by combining this with the respiratory waveform amplitude. This adaptively selects between conventional monitoring and compensated maintenance processing, achieving stable acquisition and quality improvement of respiratory signals under complex lighting and contact conditions.

Charge particle beam device (1) irradiating a sample (8) with a charge particle beam (30), comprising: a charge particle source (2) configured to irradiate the sample (8) with primary charge particles (30); a light source (10) configured to emit light that is emitted towards the sample (8); a detector (5) configured to detect secondary charge particles generated by irradiating the sample (8) with primary charge particles from the sample (8); an image processing unit (18) configured to generate an observational image of the sample (8) using the secondary charge particles detected by the detector (5); and a light intensity control unit (14) configured to set an irradiance of light per unit of time, and an absorption properties measuring unit (13) configured to measure an amount of absorption of the light absorbed by the sample (8); characterized in that the charge particle device (1) further comprises: a storage unit (27) configured to store correspondence data describing a correspondence between the amount of absorption measured by the absorption properties measuring unit (13) and the light irradiance per unit time, wherein the light intensity control unit (14) causes the image processing unit to produce a multitude of observation images, each exhibiting a different contrast, by changing the irradiance of the light per unit of time, wherein the sample (8) has a property that the emission quantity of secondary charge particles changes depending on the light irradiation intensity per unit time, The light intensity control unit (14) sets the light irradiation intensity per unit time to a first intensity, so that the sample (8) emits secondary charge particles in a first emission quantity corresponding to the first intensity, and then causes the image processing unit to produce an observation image, and The light intensity control unit (14) adjusts the light irradiation intensity per unit time to a second intensity that differs from the first intensity, so that the sample (8) emits secondary charge particles in a second emission quantity corresponding to the second intensity, and then causes the image processing unit to produce an observation image, wherein the light intensity control unit (14) determines the first intensity and the second intensity according to the correspondence described in the correspondence data.

Based on IPamp; a photovoltaic MPPT strategy based on an O-IWCA algorithm comprises the following steps: carrying out mathematical modeling on a photovoltaic module, and analyzing the output characteristics of the photovoltaic module in different light irradiance modes; identifying partial shading conditions of the photovoltaic module; if the condition is judged to be a uniform irradiation condition, adopting an improved perturbation and observation method IPamp; tracking the maximum power point through an O algorithm; if the condition is judged to be the partial shading condition, tracking the maximum power point by adopting an improved water circulation optimization algorithm IWCA; and monitoring the power change condition, if power fluctuation occurs, judging whether load change occurs, and if so, tracking the maximum power point by adopting a load line strategy. According to the strategy, various complex working conditions are effectively identified, and technical foundation support is provided for algorithm tracking characteristics; then improving an optimization mechanism of a water circulation optimization algorithm WCA to enhance the global search capability, and combining IPamp; according to the local accurate tracking characteristic of the O algorithm, collaborative optimization of MPPT performance of the photovoltaic system under different environment working conditions is realized.

The present application provides a long-life hybrid powered asset tracking device with solar charging capability, which can operate under high and low light irradiance conditions. The asset tracking device includes a system controller with energy saving management logic, a communication component, a battery component, a vibration sensor module, and a space occupancy detection module. The communication component is coupled to the system controller for conducting location determination procedures and data exchange procedures in indoor and outdoor environments. The battery component includes a solar panel module, a primary battery module, and a secondary battery module for charging the secondary battery module using energy from the solar panel module and the primary battery module. The vibration sensor module cooperates with the energy saving management logic to limit the number of data exchanges between the asset tracking device and a cloud server when no movement event is detected. The space occupancy detection module can detect the presence of an object within a predetermined range and limit the number of data exchanges when no object is detected.

The application provides a kind of light cleaning simulation analysis method, device, electronic equipment and storage medium, it relates to light cleaning technical field.The method comprises the following steps: obtaining the geometric model of light cleaning chamber, and setting simulation parameters for the geometric model;Add geometric optical physical field and laminar flow physical field in the geometric model;Set material initial condition to the geometric model;By ray tracing to the geometric optical physical field and steady-state solution to the laminar flow physical field, simulate the ultraviolet irradiance and gas flow field inside the light cleaning chamber, obtain simulation result;By simulating and analyzing the simulation result, obtain simulation analysis result.The method of the application aims to solve the problem that the existing light cleaning technology lacks effective guidance when exploring the gas path and light source layout, resulting in low research efficiency and high trial and error cost, to improve the efficiency of research exploration and reduce the cost of exploration in experiments.

The invention belongs to the technical field of lithium ion battery manufacturing, and particularly discloses a surface treatment method and an online treatment system of a lithium ion battery pole piece. The method disclosed by the invention comprises the following steps: after a pole piece is subjected to a coating process and before the pole piece enters a rolling process, and / or after the pole piece is subjected to the rolling process and before the pole piece enters a next process, performing UV pretreatment, high-frequency high-voltage electric field treatment and UV deep optimization treatment in sequence; ultraviolet light of 185-254 nm is adopted in the UV pretreatment, and the irradiance is 10-2000 mW / cm; the output voltage of the high-frequency high-voltage electric field treatment is 1-200kV, the frequency is 1-100kHz, and the power is 1-100kW; and ultraviolet light of 222 to 395 nm is adopted for UV deep optimization, and the irradiance is 10 to 2000 mW / cm. Pollutants on the surface of the pole piece can be efficiently removed, the surface roughness is accurately regulated and controlled, the compaction density difference between the surface and the interior is relieved, and the interface bonding force and the battery performance are improved. The method can be widely applied to manufacturing of lithium ion battery pole pieces.

The invention relates to the technical field of photovoltaics, in particular to a photovoltaic system combining light and agriculture, a control method, a readable medium and a product, the photovoltaic system combining light and agriculture comprises a photovoltaic module, a fixing frame, a driving unit and a control unit, the photovoltaic module is electrically connected with the control unit, and the driving unit comprises a first driving shaft and a second driving shaft. The first driving shaft is connected to the fixing frame, the first driving shaft drives the second driving shaft and the photovoltaic module to rotate around the axis in the horizontal direction, the second driving shaft is perpendicular to the first driving shaft, and the photovoltaic module is connected to the second driving shaft; the driving unit enables the photovoltaic equipment to have an initial posture and a tracking posture under the control of the control unit; the receiving unit is used for receiving light irradiation dose information; the photovoltaic device also has a light-allowing posture, under which the light-allowing posture; and the driving unit is controlled to be switched under the initial posture, the tracking posture and the light enabling posture. The method has the advantage that crops in the area covered by the photovoltaic equipment can receive scientific illumination.

The invention relates to a method, a system and equipment for measuring an incident light compensation angle of a downlink light sensor. The method comprises the following steps: acquiring attitude information of an aircraft 1, time service of a global satellite navigation system and latitude and longitude coordinates of the aircraft 1; acquiring attitude information of the stability augmentation holder 2; the stability augmentation holder 2 is arranged in a yaw axis following mode and is used for realizing that the visual axis of the imaging spectrometer is in the nadir direction; according to the attitude information of the aircraft 1 and the attitude information of the stability augmentation holder 2, angle compensation values of a downlink light irradiance measurement sensor in the rolling and pitching directions are calculated; the downlink light irradiance measurement sensor is provided with a transverse rolling and pitching two-dimensional adjusting mechanism, and the optical axis of the downlink light irradiance measurement sensor points to the zenith according to the angle compensation values in the transverse rolling and pitching directions and the transverse rolling and pitching two-dimensional adjusting mechanism; a sunlight direct incidence angle is calculated according to latitude and longitude coordinates of the aircraft 1 and time service of a global satellite navigation system. According to the invention, more accurate measurement of the sunlight direct incidence angle is realized.