摘要：红豆薏米饮料具有动力学的不稳定性。通过DSC观察发现淀粉吸收能量波峰,确认未充分糊化的淀粉是体系凝胶的成因之一。利用显微镜跟踪观察处理过程中淀粉的形态变化,优化了淀粉的糊化酶解工艺。结合PB试验和正交试验明确造成红豆薏米饮料体系易出现凝胶的显著影响因子和因素间交互作用,并进一步优化配方,达到产品设计要求。通过试验分析发现促进稳定体系形成凝胶的显著影响因子为MCC、卡拉胶、MCC和酪蛋白酸钠的交互作用。数据分析过程中发现,以流变仪检测频率6.31处的修正粘度作为响应值能够完整的分析和解释PB试验和正交试验所构建数学模型。

摘要：简述了全回转套管钻机的国内外研究现状和应用领域。主要介绍了QHZ-2000型全回转套管钻机的设计结构、技术参数、关键技术。分析了全回转套管柱、冲抓斗、清障钻具的结构原理和应用特点。总结了全回转套管灌注桩、全套管清障和全套管拔桩的施工流程、机理和适用范围。研究填补了国内自主研发全回转套管钻机的空白,是一种适合在城市施工的绿色环保、广谱安全的无循环桩基施工新设备和新技术。

摘要：对于钢管桩拔桩侧摩阻力的计算有多种计算方法,具有代表性的两种就是APIRP2A的计算方法和国内规范法,为了更好地了解这两种计算方法的特点和差别,通过对不同的工况分别采用API-RP2A的计算方法和国内规范法计算,计算对比分析两者的区别以及产生区别的原因,同时简要分析两种计算方法的优缺点。

摘要：We report rational design and syntheses of ternary noble metal-metalloid-nonmetal alloy nanowires(NWs)as a novel electrocatalyst for electrochemical ethanol oxidation reaction(EOR).This novel electrocatalyst is formed in an aqueous solution via anisotropic nucleation and growth of ternary PdBP alloy NWs along assembled cylinder template of Plurolic F127 on a nitrogen-functionalized graphene support(denoted as PdBP NWs@N-G).We find that uniformly alloying B and P intrinsically modulates the electronic states of Pd catalyst and also introduces new functions into the catalyst,while NW structure supported on the N-G exposes more electrocatalytic active sites and accelerates electron/mass *** add-in synergies of PdBP NWs@N-G kinetically facilitate the removal and/or further oxidation of CO-based poisoning intermediates,thus remarkably enhancing the electrocatalytic EOR *** exhibit a high mass activity of 4.15 A mgPd^-1 and superior cycling and chronoamperometric stability for electrocatalytic EOR,much better than previously reported monometallic Pd-based *** interestingly,this design strategy can be easily extended to develop more sophisticated NWs catalysts with more compositions(for example quaternary PdCuBP NWs@N-G)that further tunes the electronic and bifuntional effects for various desired catalysis and electrocatalysis.

摘要：研究高炉炉壳的结构稳定性,提出了用瓦里米尔公式来估算高炉炉壳临界力的简便方法,并利用此公式对鞍钢鲅鱼圈1号高炉炉壳进行了轴向临界载荷计算,得到鞍钢鲅鱼圈1号高炉炉壳的工作承载能力。然后用薄铝壳来模拟鲅鱼圈1号高炉炉壳进行屈曲实验,分析有关几何参数对高炉炉壳轴向临界载荷和屈曲模态的影响。有限元和公式法计算结果表明,高炉炉壳的稳定性足够。

摘要：赛前训练的竞技状态调控中存在着许多“时间生物学”和“时间运动学”规律,运用这些规律调控赛前竞技状态,对提高赛前训练安排的科学性具有重要作用。通过对田径、游泳、羽毛球和射击等项目的教练员和专家、学者进行有关影响赛前训练的时间因素的调查,确立了包括“时间生物学因素”和“时间运动学因素”在内的14个影响赛前训练效益的具体时间因素,并对这些时间因素对赛前训练的重要程度进行了排序。还对这些因素在赛前训练中的调控理论与方法进行了分析,并提出了一些新的观点和建议。在此基础上,进一步确立了一个“优秀运动员赛前中短期训练阶段的时间学整体结构及整体调控模式的构想”,并据此设计了具体的赛前训练时间学调控方案。

摘要：设计了利用无线模块进行电源开关的遥控电路,以及多点信号采集后经USB接口模块送入客户机与服务器进行远程传输电路。发现各遥控开关实际上构成了一个无线节点,对此进行了利用这些节点和无线模块空余端口构成的自组织无线传输网络研究,对信号的发送和接收路径进行了讨论。其网络的显著优点是克服了有线传输的布线问题,系统寄生在无线电源开关上,降低了网络成本,并能与局域网连接实现报警信号的远程传送。

摘要：This paper proposes a novel collision post structure designed to improve the crashworthiness of subway cab *** structure provides two innovative features:1)a simpler connection between the post and the car roof,which gives a more reasonable load transfer path to reduce the stress concentration at the joint;and 2)a stiffness induction design that provides an ideal deformation model to protect the safe space of the cab *** novel collision post structure was evaluated with finite element analysis,and a prototype cab car was mechanically *** results demonstrate that the deformation response was stable and agreed well with the expected ideal *** maximum load was 874.17 kN and the responses remained well above the elastic design load of 334 kN as required by the design *** addition,there was no significant tearing failure during the whole test ***,the novel collision post structure proposed has met the requirements specified in new standard to improve the crashworthiness of subway cab ***,the energy absorption efficiency and light weight design highlights were also summarized and discussed.

摘要：高校思想政治理论课程的艺术性指的是思想政治理论课程本身的艺术性,是课程本质的艺术,是课程打造的艺术,是课程呈现的艺术。注重和提高高校思想政治理论课程的艺术性,不仅是新时代与时俱进的内在要求,也是立德树人的内在要求,更是思想政治理论课程本质的内在要求,且与提高思想政治理论课程的质量和水平有着直接的关系。高校思想政治理论课程要有“质”的飞跃,必须注重其艺术性。

摘要：复合油相主要构成乳化炸药的连续相,与水相通过乳化剂乳化作用形成稳定的乳状液,复合油相材料的组成和性质将直接影响乳化炸药在实际生产中的应用。实践表明,复合油相材料的物化性质对乳化炸药性能有着较大的影响(例如适当的复合油相材料可以使乳化炸药的粘度增加,防止分散相的分层、絮凝和聚结,同时可以防止气泡的逸散,因此有利于乳化炸药的稳定性),故将对此展开探讨。