4results about How to "Avoid experimental failure" patented technology

This utility model discloses a well plate structure for intestinal flora culture, belonging to the field of flora culture experimental technology. It includes a culture plate and multiple culture containers. The culture plate has a placement hole that matches the shape of the bottom end of the culture container. The outer side wall of the bottom end of the culture container and the inner side wall of the placement hole are fixed by threaded engagement. The top of the culture container is provided with a detachable top cover. The center of the top cover has a puncture hole for the intestinal flora extraction syringe to enter and exit. An extension tube is connected to the puncture hole. The bottom end of the extension tube is frustoconical and the inner wall is provided with a silicone layer. The bottom of the culture container is provided with a plug that matches the opening of the bottom end of the extension tube. By utilizing the sealing fit between the top cover and the plug and the detachable design, the anaerobic environment required for intestinal flora culture is ensured, while avoiding the puncture problem caused by multiple layers of sealing.

This utility model relates to the field of reagent bottle holding cylinder technology, and discloses a reagent bottle holding cylinder for a roller mixer, including a cylinder assembly, wherein the upper and lower ends of the cylinder assembly are snapped with sealing components, the inner wall of the cylinder assembly is snapped with a ring of replaceable components, and the bottom of the inner wall of the cylinder assembly is installed with a ring of stabilizing components; the replaceable components include a separator plate and a retaining ring, wherein the separator plate is placed inside the main cylinder, and the retaining ring is fixedly installed on the inner wall of the separator plate; the replaceable components allow the device to be flexibly matched to reagent bottles of different shapes, eliminating the need to replace the entire holding cylinder for a specific container, reducing equipment costs, and reducing the risk of shaking or falling off, especially during high-speed mixing, avoiding reagent spillage, contamination, or experimental failure due to container loosening; the stabilizing components help reduce displacement or vibration of the holding cylinder, preventing the overall shaking of the instrument and protecting the experimental platform and surrounding equipment.

This invention discloses a method and system for evaluating DNA storage sequencing depth based on channel simulation, addressing the problems of inaccurate predictions and limited guidance in existing uniform distribution models. The method includes: when sequencing data is available, fitting real data to obtain log-normal distribution parameters μ and σ; when sequencing data is unavailable, obtaining μ and σ through simulation modeling based on experimental parameters; and combining these parameters to calculate the decoding ratio of the coding strand in the noiseless channel and the sequencing depth boundary in the noisy channel. The system includes input, storage channel modeling, sequencing depth calculation, and output modules. The model of this invention closely reflects reality, provides accurate predictions, reduces DNA storage and retrieval costs, improves the success rate of single-sequencing decoding, and is easy to use, facilitating the practical application of the technology.

The invention discloses a novel sunlight simulation test box, and relates to the technical field of sunlight simulation test boxes. The environment change trend is accurately quantified through the analysis module in combination with factors such as the door opening time and the difference value of the internal and external environment parameters of the box before door opening; according to the variable quantity of the environmental parameters in unit time and a preset critical value, the time required by the temperature, the humidity and the gas concentration to reach the critical value can be calculated, and the minimum value is taken; an operator can know the remaining time when the environment reaches an unacceptable state in advance, the experiment operation is reasonably arranged, and the experiment failure caused by excessive change of the environment is avoided; after the box door is closed, the temperature, the humidity and the gas concentration in the box are automatically adjusted according to the monitoring and analysis results of the analysis module on the environmental parameters through cooperative work of the added equipment, so that the stable state required by the experiment is recovered, the recovery efficiency of the experimental environment is improved, and a reliable guarantee is provided for smooth proceeding of the subsequent experiment.