7results about How to "Experimental data is reliable" patented technology

The invention discloses a method for simulating phosphorus and chromium migration during farmland irrigation with acid mine wastewater, which comprises the following steps: mixing a plant-derived organic material with deionized water to obtain a soluble organic matter; h2O2 oxidizes Fe < 2 + > to prepare pure Schwertmannite, and the pure Schwertmannite is placed in a phosphate solution to obtain phosphorus-loaded Schwertmannite; mixing the phosphorus-loaded Schwertmannite and the soluble organic matter with a chromate solution, carrying out oscillation adsorption, carrying out solid-liquid separation after adsorption, carrying out CrO and POconcentration change test on filtrate, and carrying out mineral characterization on separated solids; a three-dimensional fluorescence spectrum is adopted to track composition conversion of the soluble organic matter in the reaction process; and analyzing the component change of the supernate before and after the reaction by adopting Fourier transform ion cyclotron resonance mass spectrometry. The influence mechanism of DOM on phosphorus and chromium fate in mineral / water interface molecular fractionation is disclosed from the molecular level, and a scientific basis is provided for collaborative migration risk assessment of phosphorus and heavy metal in acid mine wastewater irrigation area farmland.

This utility model relates to the field of rat smoking technology and discloses a rat smoking device, including a smoking chamber, a three-way valve, a smoking chamber, and an extraction and delivery component. The three ends of the three-way valve are detachably connected to a first hose, a second hose, and a third hose, respectively. The first hose is detachably connected to the smoking chamber. The smoking chamber is detachably connected to the third hose, and the smoking chamber can be used for burning cigarettes. The extraction and delivery component is detachably connected to the second hose and is used to draw the smoke from the burning cigarette in the smoking chamber through the third hose, the three-way valve, and the second hose. This utility model proposes a rat smoking device that generates smoke through the smoking chamber, which is then delivered to the smoking chamber via hoses and a three-way valve to smoke the rats, simulating the smoking process and avoiding experimental errors. Simultaneously, fresh air is introduced and smoke is expelled, simulating a natural smoking environment, diluting the smoke concentration, ensuring the survival safety of the rats, extending the smoking time, and obtaining more data on the chronic development of COPD.

The application relates to the battery technical field, in particular to a single cell expansion effect testing device. The single cell expansion effect testing device comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are clamped on the two sides of the thickness direction of a single cell, the first clamping plate is provided with first sliders slidable along a second direction on the two sides along a first direction, the second clamping plate is provided with second sliders slidable along the second direction on the two sides along the first direction, the first sliders and the second sliders on the same side are connected with fasteners, the first clamping plate and the second clamping plate clamp the cell, the state that the single cell is clamped between other two cells in a battery pack is simulated, and the position of the fastener can be adjusted according to simulation results, so that the expansion effect of the single cell in the actual use of the battery pack is effectively simulated, the effect of the equivalent battery pack is achieved, the safety and reliability of the battery are more accurately evaluated, and the test cost is effectively reduced.

This invention relates to an apparatus and method for the efficient capture of iodine-containing exhaust gas, comprising a tower system, a gas supply system, an absorbent system, an exhaust gas detection system, and a control system. Iodine-containing exhaust gas enters from the bottom of the tower system via the gas supply system and flows upward within the tower. The absorbent system enters from the top of the tower system via a nozzle and flows downward. The two gases come into countercurrent contact within the tower. Sodium hydroxide in the absorbent reacts with iodine in the exhaust gas to form iodide, thus converting iodine from the gas phase to the liquid phase, achieving iodine absorption and capture. After absorption and capture, the exhaust gas passes through a demisting section to capture entrained droplets before being discharged from the top of the tower system. The exhaust gas detection system measures the concentration of iodine in the exhaust gas. This method enables efficient gas-liquid contact and mass transfer, and achieves constant-temperature circulation and composition control of the alkaline solution. Through optimized tower structure and control system, it achieves stable and efficient capture of iodine from iodine-containing exhaust gas, possessing good potential for scientific research verification and engineering scale-up.

The utility model discloses an indoor simulation device for pipeline deformation under active instability of a self-balancing shield excavation face. The indoor simulation device comprises a test module and a monitoring module. The uncovered test box body is made of a transparent organic acrylic glass plate, and a round hole and a square hole are formed in the front face of the model box and used for fixing a model tunnel and shield tunneling. And the shield tunneling device is provided with a connecting screw rod, a hexagon nut is screwed into one side of the connecting screw rod, and active instability of the tunnel excavation face is controlled by rotating the hexagon nut. A reaction frame is arranged on the front side of the test box body, one side of the reaction frame makes contact with the threaded rod, and reaction force is generated and provided for the piston rod to drive the supporting plate to retreat. And the monitoring module comprises a strain gauge, a settlement rod, a dial indicator, a thin film pressure sensor, a control circuit board, a static stress-strain test analysis system and a real-time monitoring computer. The device has the advantages of simple structure, convenience in installation, capability of reducing the workload of experimenters, capability of improving the test efficiency, real and reliable experimental data, real-time monitoring and the like.

This invention discloses a thin film tension testing mechanism, comprising a frame, a take-up roller, an unwind roller, a pressure roller assembly, and a pressure sensing roller. After being unwound by the unwind roller, the thin film is sequentially wound around a pressure sensing roller on one side, the pressure roller assembly, and a pressure sensing roller on the other side before being connected to the take-up roller. The pressure roller assembly includes a hollow, rotatable wheel and a support shaft fixed to the frame. The wheel is rotatably mounted on the support shaft. A mounting bracket is fixedly installed on the support shaft, and at least one non-contact sensor is mounted on the mounting bracket. A detection window is provided on the circumferential wall of the wheel, through which the detection end of the non-contact sensor points towards the thin film. The rotatable wheel and the support shaft fixed to the frame ensure smooth rotation and transmission of the thin film, enabling successful acquisition of dynamic response data of the film thickness under stress, providing reliable experimental data for material research.

The utility model discloses a quantitative sampling device for a detection reagent, and belongs to the technical field of detection reagents. Comprising a sampling pipe, a lifting structure is arranged on the sampling pipe and used for moving the sampling pipe in the vertical direction, the sampling pipe is of a cavity structure, a piston is slidably arranged on the inner wall of the cavity structure, a push rod is fixedly arranged on the piston, the push rod extends to the outer side of the sampling pipe and is fixedly provided with a handle, and a quantitative plate is arranged on the inner wall of the cavity structure. The piston can abut against the quantifying plate, and a limiting guide structure is arranged on the sampling pipe and used for limiting and moving the quantifying plate. According to the utility model, the piston is driven to move through the push rod, so that the sampling needle extracts the reagent into the sampling tube, and when the piston is propped against the quantitative plate in the sampling process, the extraction of the reagent by the piston can be stopped, and the sampling amount each time is accurate and consistent.