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With the development of the gear transmission system towards complexity, multiple transmission types and high reliability, it becomes more and more important to assign the reliability of the gear transmission system quickly and accurately. In this study, aiming at the problems of incomplete consideration factors, inconsistent range of changes in different allocation methods for the same parameter, and inconvenient digital software development in existing reliability allocation methods, an improved advisory group on reliability of electronic equipment (AGREE) allocation method is proposed, the scoring allocation method is extended, and the digital characteristics of reliability allocation method are discussed. The basic reliability model and task reliability model of the complex gear transmission system are established, and the traversal algorithm of the automatic reliability model generation is studied. A digital platform for rapid reliability allocation of fixed axle gear train, planetary gear train and hybrid gear train is developed. Four independent modules, namely input module, calculation module, result display module and output module, are designed. The accuracy of the calculation results of the software is verified by comparing with the results of examples. The parametric modeling and the automatic generation of the example report for the reliability allocation of the gear transmission system are realized, and the accuracy and efficiency of the reliability allocation model are raised.

Objective To investigate the expression of brain expressed X-linked gene 1(Bex1) and nuclear factor-kBp65 (NF-kBp65) in tongue squamous cell carcinoma, and its significance. Methods Immunohistochemistry was used to detect the expression of Bex1 and NF-kBp65 in 60 tongue squamous cell carcinoma (TSCC) tissues and adjacent normal tissues, and the relationships between Bex1, NF-kBp65 and the clinicopathological features and prognosis of patients were analyzed. Results The positive expression rate of Bex1 in TSCC was 48.3% (29/60), which was significantly lower than that in adjacent normal tissues 88.3% (53/60) (x2=22.18, P < 0.01). The positive rate of Bex1 was negatively correlated with TNM stage, and the difference was statistically significant (P < 0.05). The positive rate of 63.3% (38/60) in TSCC was significantly higher than 20% (12/60) in adjacent normal tissues (x2=23.18, P < 0.01), the positive rate of NF-kBp65 was positively correlated with TNM stage, and the difference was statistically significant (P < 0.05). According to the Pearson correlation analysis results, the expression of Bex1 and NF-kBp65 in TSCC tissues was negatively correlated (r=-0.302, P=0.019). Kaplan-Meier survival curves showed that the survival rate of Bex1 positive patients was significantly higher than that of Bex1 negative patients. Conclusion In TSCC tissues, the low positive expression rate of Bex1 and the high positive expression rate of NF-kBp65 may promote tumor invasion and metastasis, and the negative expression of Bex1 may be related to the poor prognosis of patients.

Many researches on the fields of different applied mathematics and physics can be attributed to the boundary value problem with p-Laplacian. So the research on this issue has important theoretical significance and application value. In this paper, we consider the existence of triple positive solutions for third-order differential equation boundary value problems with p-Laplacian ... where φp(s) = |s|p-2 s, p > 1. By using Avery-peterson's fixed point theorem, under f satisfies certain growth conditions, we study the existence of at least three positive solutions for the above boundary value problem. [ABSTRACT FROM AUTHOR]

Objective: To compare the effect of impulse-radio ultrawideband（IR-UWB） radar technology and polysomnography（PSG） in sleep assessment. Method: A total of 79 OSA patients were randomly divided into two groups: 40 patients in group A received PSG and IR-UWB, and 39 patients in group B received micromovement sensitive mattress（MSM） and IR-UWB. Pearson correlation and ROC curve were used for statistics. Result: AHI PSG and AHI MSM were significantly correlated with AHI IR-UWB（ r =0.91, P ＝0.00; r =0.92, P ＝0.00）. Bland-Altman analysis showed that AHI IR-UWB value was highly consistent with AHI PSG value（95.00%）, and AHI IR-UWB value（97.44%）. The sensitivity and specificity of AHI IR-UWB compared with PSG were 70.40% and 89.90%, respectively. The area under ROC curve was 0.915. Conclusion: IR-UWB has a high diagnostic value for adult OSA in terms of minimum blood oxygen saturation, average blood oxygen saturation, average number of central sleep apnea, average number of complex sleep apnea, average heart rate, sleep efficiency, REM sleep duration, average AHI, etc. It is an economic and practical sleep evaluation tool., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)