7results about How to "Achieve quality control" patented technology

The application discloses a C-band tuning-free duplexer and belongs to the technical field of microwave filters. The tuning-free duplexer comprises an upper conductor and a lower conductor, and the upper conductor and the lower conductor are buckled one above the other to form a waveguide cavity. The upper conductor is provided with a combining port in the middle of the top, and the lower conductor is provided with a low-frequency input / output port and a high-frequency input / output port at the bottom. The waveguide cavity from the low-frequency input / output port to the combining port constitutes a low-end filter, and the waveguide cavity from the high-frequency input / output port to the combining port constitutes a high-end filter. The main bodies of the high-end filter and the low-end filter are both a plurality of waveguide resonant cavities arranged along a straight line, the middle positions of each waveguide resonant cavity are provided with cavity loading, and adjacent waveguide resonant cavities are connected through inter-cavity coupling. The tuning-free duplexer adopts a symmetrical structure and a center loading mode, realizes tuning-free assembly, has the characteristics of high power bearing capacity, low transmission loss and excellent signal isolation, and is suitable for a C-band communication system.

This invention provides a fingerprint spectrum of Yishen Wufa Oral Liquid, its construction method, and its application, as well as a multi-index component detection method for Yishen Wufa Oral Liquid, relating to the field of pharmaceutical analysis and structural technology. The fingerprint spectrum of Yishen Wufa Oral Liquid constructed by this invention includes 20 characteristic peaks, including ferulic acid, 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside, astragaloside A, psoralen, isopsoralen, and emodin. The chromatographic peaks are abundant and attributed to the effective components of psoralen (roasted with black sesame seeds), angelica, poria cocos, wolfberry, fleeceflower root (processed with black bean wine), achyranthes bidentata, and astragalus complanatus. This provides a more comprehensive reflection of the overall chemical composition and quality of Yishen Wufa Oral Liquid, facilitating more effective guidance for feed addition and strict standardization of production operations. It also helps improve the safety and efficacy of Yishen Wufa Oral Liquid in clinical use, possessing high application value.

This invention discloses a method for evaluating the quality of honeysuckle dew based on gas chromatographic characteristic spectroscopy, belonging to the field of pharmaceutical quality analysis. Through comparative analysis of a large number of samples, five volatile characteristic components in the GC chromatogram of honeysuckle dew were identified: n-hexanol, phytol, linalool, furfural, and α-terpineol. Based on this, a GC characteristic chromatogram of honeysuckle dew was established. This invention also identified two characteristic components with a strong positive correlation in content. By utilizing the GC characteristic chromatogram and the peak area ratio of the two positively correlated characteristic components, accurate detection of the quality of honeysuckle dew was finally achieved.

The invention relates to the technical field of cell exosome preparation, in particular to an optimization method and system for preparation of ovarian granular cell exosomes based on iPSC (induced pluripotent stem cells). Basic culture parameters are determined based on the human pluripotent stem cells, the optimal induction factors and the optimal concentration, directional culture is conducted on the human pluripotent stem cells through the basic culture parameters, a differentiated cell population is obtained, marker detection is conducted on the differentiated cell population, and the anti-mullerian hormone positive rate and the second gene positive rate are obtained. Performing multiplication culture on the target ovarian granular cells to obtain a cell culture supernatant, and separating the cell culture supernatant by utilizing the optimal separation parameters to obtain an exosome extract, thereby completing the optimization of exosome preparation. The intelligent degree of the exosome preparation process can be improved.

The application relates to the field of biochemical technology, and particularly discloses a method for efficiently extracting green mung bean starch. The method comprises the following steps: obtaining green bean sprouts by ultrasonic-assisted soaking and germination culture of green mung beans; obtaining green bean sprout powder by drying, crushing and sieving the green bean sprouts; mixing the green bean sprout powder with a NaOH solution, oscillating, washing, centrifuging, filtering and obtaining pure starch, and finally drying, grinding and sieving to obtain germinated green mung bean starch. The extraction method combines ultrasonic pretreatment with a germination process, effectively improves the gelatinization characteristics of the starch, significantly improves the starch viscosity, thereby enhancing the applicability of the starch in food processing, and meanwhile, the nutritional and functional characteristics of the green mung bean starch are retained.

This invention provides a honeysuckle and codonopsis composition. The composition, which includes the determination of the main components of codonopsis, scientifically combines honeysuckle (containing iridoids and phenolic acids) with codonopsis (containing alkynes, polysaccharides, and newly discovered compounds) to form a synergistic compound system. An integrated quality control method of "multi-index content determination - dual-wavelength characteristic spectroscopy" ensures stable quality. The invention elucidates that this composition exerts its anti-inflammatory and antioxidant effects through a multi-pathway synergistic mechanism: the honeysuckle component targets and inhibits inflammatory signaling pathways such as NF-κB and MAPK, while the codonopsis component achieves systemic protection by regulating intestinal flora, enhancing the mucosal barrier, and modulating immunity. This composition is suitable for the prevention and treatment of inflammatory diseases such as enteritis and chemotherapy-induced intestinal injury, reflecting a deep integration of the traditional Chinese medicine principle of "clearing heat and strengthening the body, treating both the root cause and symptoms" with modern pharmacological mechanisms.

The application relates to the technical field of heat-insulating metal plates, and particularly discloses a rare earth reflective heat-insulating metal plate and a roll coating quality detection method thereof. The rare earth reflective heat-insulating metal plate is a metal plate with high reflective capacity for sunlight and infrared rays and heat-insulating function. The surface coating of the metal plate is composed of a multilayer overlapping structure of a rare earth composite reflective material coating and a rare earth composite hollow microsphere heat-insulating material coating. In the preparation process of the rare earth reflective heat-insulating metal plate, machine vision is used to construct a roll coating quality detection scheme. The scheme can automatically identify defects on the surface of the coating, such as bubbles, cracks and unevenness, and realize mass roll coating quality control, so as to guarantee the heat-insulating performance and durability of the final product.