31results about How to "Avoid subjective arbitrariness" patented technology

The invention discloses a comprehensive assessment method based on the effect of a distribution type electrical connection on a power distribution network. The comprehensive assessment method is characterized in that a comprehensive assessment index system of the effect of the distribution type electrical connection on the power distribution network, three-level index values under different distribution type electrical connection schemes are worked out by analyzing the power distribution network including a distribution type power source, a standard decision matrix of an assessment index is established, the weight coefficients of a one-level index, a two-level index and a three-level index are respectively obtained, accordingly, the comprehensive weight coefficient is determined, the comprehensive assessment satisfaction degrees of different distribution type electrical connection schemes are finally worked out, and the scheme with the largest comprehensive assessment satisfaction degree serves as the optimal distribution type electrical connection scheme. The comprehensive assessment method avoids the insufficient data information amount probably occurring through the single utilization of the object analysis method and also avoids the subject randomness of direct utilization the subject analysis method, and complex links of detecting and judging the matrix consistency are reduced while the judging fuzziness of people is taken into consideration.

The invention discloses a reliability design method for an upper beam of a high-speed press. It includes the following steps: select the design variables according to the reliability requirements in the actual beam design, and establish a reliability design model of the beam on the high-speed press that describes the uncertainty factors in intervals; use LHS to obtain the sample points required for fitting Kriging in the experimental design, The objective function and constraint function values ​​corresponding to each sample point are obtained through co-simulation technology, and the Kriging model is constructed based on this; the reliability constraint value in the reliability design model is calculated based on the uniform interval dominance; The double nested genetic algorithm searches for the optimal design scheme that meets the reliability requirements. According to the actual reliability requirements of the upper beam of the high-speed press, the present invention uses the dominance degree of uniformly distributed intervals in the reliability design to calculate the reliability index value, and can conveniently obtain the design scheme of the upper beam of the high-speed press that meets the reliability requirements.

The invention discloses a gully head liveness evaluation method based on an information entropy theory. The method comprises the steps of: carrying out outdoor on-site measurement and investigation on gully heads by using a high-precision differential global positioning system (GPS) technique, acquiring morphological parameter and gully bed vegetation coverage of each gully head, using the morphological parameter and the gully bed vegetation coverage as the evaluation index of the gully head to be evaluated, analyzing and processing the evaluation index by using the information entropy theory, and calculating the evaluation value of the gully heads so as to evaluate the liveness of the gully heads. The beneficial effect provided by the invention is that the gully head liveness evaluation method is simple and rapid and high in accuracy.

The invention relates to the field of detection of meat products, in particular to a device for measuring the color of inferior meat after slaughter of livestock and a detection method for inferior meat. In the meat color measuring device for post-mortem inferior meat of livestock, after the sample is placed on the sample stage in the dark box, the image of the sample and the color guide is obtained through the CCD camera and lens, and then the image information is transmitted to the meat color judgment unit, the meat color judgment unit The image is processed and judged to determine whether the flesh color of the sample is that of inferior meat. The detection is convenient and intelligent, which can avoid the subjective arbitrariness brought by the grader through sensory detection, and the determination accuracy is high; the inferior meat of the livestock used In the determination method, whether the meat color of the sample is that of inferior meat can be conveniently and accurately determined by the meat color measuring device of the inferior meat after slaughtering of the livestock, and the pH value of the sample can be measured by the meat pH meter, and the judgment value of the meat color of the sample can be determined according to the measured meat color. And PH value, you can judge whether the sample is inferior meat.

The invention discloses a high-speed press sliding block dimension robust design method based on an interval. The method comprises the steps that a robust design model including design variables and interval uncertainty parameters is built according to the design needs of a high-speed press sliding block dimension, the response values of an objective function and a constraint function which correspond to sampling points are obtained, the function relationship between the design variables and the uncertainty parameters and a design target is determined according to sampling point information, a polynomial model of the objective function and the constraint function is built according to the least squares criterion, the matching precision of the polynomial model is detected, and iteration optimization is carried out by combining the polynomial model and a double nested genetic algorithm. According to the method, non-probability robustness design is carried out based on interval mathematics according to the design needs of the high-speed press sliding block dimension, and a robust and optimal high-speed press sliding block design scheme can be obtained conveniently.

The application relates to a self-circulating traditional Chinese medicine sub-frying pan, which belongs to the field of traditional Chinese medicine pharmacy. a chamber, a plurality of rotating filter screens, and a plurality of medicine chamber covers; the control system includes: a pressure sensor and a control module. In this application, the size of the filter hole can be adjusted by rotating the medicine warehouse cover, which can be adjusted according to the actual size of the medicinal material, and has strong adaptability; it can independently judge the remaining decoction times of the medicinal material according to the value of the pressure sensor, and the medicinal material cannot continue to be decocted. An alarm will be issued to prompt the replacement of new medicinal materials, which prevents waste of cooking less or destroying the efficacy of cooking more. It is more intuitive to judge the number of decoctions when using, which overcomes the subjective arbitrariness of the number of decoctions of traditional Chinese medicine.