Technological Design and Application of Cylinder-block Production Line of 4110 Series Diesel Engine

介绍了4110系列柴油机缸体生产线的工艺设计概况,缸体关键部位所采用的工艺、设备及应用效果,希望能为柴油机缸体工艺设计工作提供些许参考。This paper introduces the process design profile of 4110 series cylinder-block production line,and the key parts'technology,equipment and the effect.In the hope that some references will been provided to the diesel engine designers

Evaluation on difference of therapeutic efficacy of Jiawei Xiaoyao Granules and Pills in treatment of emotional disorder during perimenopause based on Greene Climacteric Scale

目的:在前期加味逍遥丸治疗围绝经期情绪障碍具有比较优势的基础上,基于grEEnE量表探讨其颗粒剂和丸剂不同剂型间疗效差异。方法:经筛选后患有情绪障碍的围绝经期女性75例随机等分为A、b、C3组,分别对应采用帕罗西汀、加味逍遥丸和加味逍遥颗粒剂治疗8周。所有患者在治疗前后各进行1次grEEnE及其子因子评定,并在观察期结束时进行TESS评定。结果:grEEnE总分差及其焦虑、抑郁因子分差:3种治疗方法均能改善,且相互间无显著差异;grEEnE性因子和血管因子分差:后二组均优于A组(P<0.01);TESS评分:与A组比较,b、C组均有统计学意义(P<0.01),评分均小于A组,且后二组间无显著差异。结论:加味逍遥的2种剂型间疗效无显著差异,考虑到帕罗西汀的不良反应,治疗该病加味逍遥的2种剂型都值得推荐。Objective: To investigate the difference in therapeutic efficacy between Jiawei Xiaoyao Granules and pills based on the preliminary research of treating emotional disorder during perimenopause with Jiawei Xiaoyao Pills and Greene Climacteric Scale.Methods: 75 female patients with emotional disorder during perimenopause were slected and randomly divided into 3 groups as group A, B and C.Patients in the 3 groups were treated with paroxetine, Jiawei Xiaoyao Pills and Jiawei Xiaoyao Granules respectively for 8 weeks.Greene and Greene factors assessment were carried out in all the patients before and after treatment, and the TESS assessment was carried out at the end of the observation period.Results: The three therapies all could improve the gap in total score of Greene and its factors as anxiety and depressed, and the difference among these three groups was no significant.The factors of Greene and gap in score of vascular factors of group B and C was better than that of group A(P<0.01).The difference in TESS score between group A and group B and C was significant(P<0.01), while the difference between group B and group C was not significant.Conclusion: The difference in curative effect between the two formulations was not significant.Because of the adverse reactions of paroxetine, in the treatment of emotional disorder during perimenopause, the two formulations of Jiawei Xiaoyao Powder were worth to be recommended.国家自然科学青年基金项目(No.81302960)~

关于不定方程组x~2-22y~2=1与y~2-Dz~2=1764的公解

利用Pell方程的解的性质及递归序列的方法,证明了不定方程组x2-22y2=1与y2-Dz2=1764有以下结果:当D=2p1…ps,1≤s≤4（p1,…,ps为互异的奇素数）时,此方程组的整数解为（i）D≠2×77617时,仅有平凡解x,y,（z）=±197,±42,（0）;（ii）D=2×77617时,有非平凡解x,y,（z）=±30580901,±6519870,±（16548）和平凡解（x,y,z）=±197,±42,（0）.当D=pm（m∈Z+,p为任意素数）时,其整数解只有平凡解（x,y,z）=±197,±42,（0）.国家自然科学基金项目(61462016);;贵州省教育厅青年科技人才成长项目(黔教合KY字[2016]130

中国情绪图片系统的编制_在46名中国大学生中的试用

建立本土化的中国情绪图片系统( CAPS)以适应情绪研究的需要。方法: 筛选出 852 幅图 片组成 CAPS, 46 名中国大学生对 CAPS 图片的愉悦度、 唤醒度和优势度进行了自我报告的 9 点量表评分。结果: 在 CAPS 评分中, 唤醒度评分结果的一致性最高, 愉悦度和优势度评分结果的标准差大于唤醒度的标准差。散点图显示, CAPS 在愉悦度和唤醒度上评分分布较为广泛。结论: 国际情绪图片系统( IAPS)具有较好的国际通用性, 但仍由于文化、 个性等因素存在差异, 因此编制本土化的中国情绪图片系统是有必要

The Establishment and Assessment of a Native Affective Sound System

为情绪研究提供一套本土量化的声音刺激材料,在大量收集各种声音刺激的基础上精选出453个声音,并征集50名大学生对声音的愉悦度、唤醒度和优势度进行了自我报告的9点量表评分。结果表明男女生对部分声音的情绪感受有所不同;聚类分析可将声音聚为6类,大致可引发愉快、悲伤、恐惧、厌恶等情绪,提示可以同时从情绪维度和情绪类型两种途径研究情绪问题,两者结果也有相互比较的可能性;本情绪声音库还有待进一步完善

本土化情绪声音库的编制和评定

为情绪研究提供一套本土量化的声音刺激材料,在大量收集各种声音刺激的基础上精选出453个声音,并征集50名大学生对声音的愉悦度、唤醒度和优势度进行了自我报告的9点量表评分。结果表明男女生对部分声音的情绪感受有所不同;聚类分析可将声音聚为6类,大致可引发愉快、悲伤、恐惧、厌恶等情绪,提示可以同时从情绪维度和情绪类型两种途径研究情绪问题,两者结果也有相互比较的可能性;本情绪声音库还有待进一步完善

Numerical study of convective heat transfer of a supersonic combustor with varied inlet flow conditions

Characteristics of convective heat transfer of a supersonic model combustor with variable inlet flow conditions were studied by numerical simulation in this paper. The three-dimensional flow and wall heat flux at different air inlet Mach numbers of 2.2, 2.8 and 3.2 were studied numerically with Reynolds-averaged Navier-Stokes equations with a shear-stress transport (SST) k-omega turbulence model and a three-step reaction model. Meanwhile, ethylene was chosen as the fuel, and the fixed fuel-to-air equivalence ratio is 0.8 in all cases in this paper. The results of the simulations indicate that wall heat flux distribution of the combustor is very non-uniform with several peaks of wall heat flux at varied locations. For the low inlet Mach number of 2.2, a shock train structure is formed in the isolator, and three peaks of wall heat flux are located respectively on the backward face of the cavity, on the side wall near the fuel injection and on the bottom wall near the injection holes, and a maximum wall heat flux reaches 5.4 MW/m(2). For the medium inlet Mach number of 2.8, there exists a much shorter shock structure with three peaks of wall heat flux similar to that of Mach number 2.2. However, as the inlet Mach number increased to 3.2, there is no shock structure upstream of fuel injections, and the combustor flow is in a supersonic mode with different locations and values of wall heat flux peaks. The statistical results of wall heat loading show that the change of total wall heat is not monotonic with the increase of inlet Mach number, and the maximum appears in the case of Mach number being 2.8. Meanwhile, for all the cases, the bottom wall takes up more than 50% of the total heat loading