摘要：A novel Cu?6.5Ni?1Al?1Si?0.15Mg?0.15Ce alloy with super-high strength was designed and its corrosion behavior in3.5%NaCl solution at25°C was investigated by the means of SEM observation,TEM observation and XPS *** alloy after solution treatment,80%cold rolling and aging at450°C for1h had the best comprehensive properties with hardness of HV314,electrical conductivity of19.4%IACS,tensile strength of1017MPa,and average annual corrosion rate of0.028mm/*** oxides and chloride products formed at first,followed by the formation of dyroxides *** alloy showed super-high strength,good electrical conductivity and corrosion resistant because Ni2Si hindered the precipitation of large NiAl at the grain boundary and the denickelefication of the alloy.

摘要：Due to the long-term plate tectonic movements in southwestern China,the in-situ stress field in deep formations is *** passing through deep soft-rock mass under non-hydrostatic high in-situ stress field,tunnels will suffer serious asymmetric *** is no available support design method for tunnels under such a situation in existing studies to clarify the support time and support *** study first analyzed the mechanical behavior of tunnels in non-hydrostatic in-situ stress field and derived the theoretical equations of the ground squeezing curve(GSC)and ground loosening curve(GLC).Then,based on the convergence confinement theory,the support design method of deep soft-rock tunnels under non-hydrostatic high in-situ stress field was established considering both squeezing and loosening *** addition,this method can provide the clear support time and support stiffness of the second layer of initial *** proposed design method was applied to the Wanhe tunnel of the China-Laos railway in *** data indicated that the optimal support scheme had a good effect on controlling the tunnel deformation in non-hydrostatic high in-situ stress *** applications showed that the secondary lining could be constructed properly.

摘要：在介绍无障碍设计概念的基础上,运用行为观察法、访谈法等科学研究方法对老年人的生理和行为特性进行了调查和分析。结合步行车的功能要求及其组成对其无障碍设计提出针对性建议。

摘要：肢障者因身体先天或后天残疾,下肢和腰椎失去行动能力,使用移位机可将其托起并移动,代替人工帮助。运用测量法、行为观察法和访谈法研究了肢障者与移位机之间的人机关系,分析了肢障者的行为和生理特性对移位机功能与尺寸设计的影响,获得了肢障者人体尺寸和行为活动能力等方面的信息,并对移位机的功能、结构与形态尺寸进行了创新设计,使得移位机的功能与形态尺寸更符合肢障者的需求。

摘要：在介绍现代厨房家具的功能、类型及无障碍设计概念的基础上,对无障碍家具使用对象及其生理特性进行了分析,探讨了厨房家具无障碍设计的影响因素及设计原则,并结合厨房家具的功能要求及其组成对无障碍设计提出了针对性建议。

摘要：根据我国残疾人的现状,对现有研究文献中的残疾人生理、心理和行为特性进行了总结归纳,论述了无障碍设计的现状,分析了残疾人无障碍设计研究的必要性和紧迫性,发现了现有研究的不足,并提出了应该将残疾人的生理、心理和行为特性的系统研究作为无障碍设计的基础。

摘要：Taking Zhaoyu Historical City in Qixian County as an example,this paper explores the production process of tourism space in Zhaoyu Historical City in the context of consumption,based on Lefebvre's triadic dialectic *** study reveals that,driven by the development of tourism,subjects such as the government and planners possess absolute dominance over spatial representations,while residents demonstrate receptive and adaptive action strategies and social relations are reproduced,presenting a harmonious *** exploring the tourism community in the environmental performance of the subject of action,social relations,consumption demand,daily life practice,cultural capital,etc.,the daily life practice of the tourism community has transcended the original logic of tourism spatial production and has a certain *** mechanism analysis in this paper can help guide the healthy development of tourism space in the neighboring historical cities or communities and achieve the dual purpose of promoting the economic development of the community and heritage protection.

摘要：针对凝胶白球的生产特性及自动化控制要求,设计了凝胶白球合成生产控制系统。介绍了凝胶白球的生产工艺流程,并且详细阐述了分布式控制系统的硬件结构设计、程序设计、以及主要复杂工艺的实施方案。实现了对凝胶白球合成的工艺控制和过程管理,经实验生产验证,此系统有效地提高了工厂设备的可靠性,发挥了优化工艺车间的资源配置、降低能耗、节约维护及管理人员费用的作用,取得了良好的经济效益。

摘要：本文介绍的系统是以89C52单片机为核心的一个闭环控制系统。采用AD590温度传感器,经温度处理电路,AD转换,把采集的温度数字量送89C52经模糊和PID两种算法处理,输出PWM脉冲控制开关电路,调节220AC,实现了加热丝自动升温和恒温及降温控制。

摘要：本试验旨在研究饲粮代谢能和粗蛋白质水平对育成期雪山鸡种母鸡生长性能、体尺性状、屠宰性能、卵巢指数、开产日龄和蛋重以及肠道微生物的影响,以明确其育成期饲粮代谢能和粗蛋白质适宜水平。试验采用3×3双因素完全随机试验设计,设置3种代谢能水平(10.88、11.30、11.72 MJ/kg)和3种粗蛋白质水平(12.50%、14.00%、15.50%),同时选取6周龄末健康状态良好、体重相近的雪山鸡种母鸡1458只,随机分为9组,每组9个重复,每个重复18只鸡。试验期10周,16周龄末进行生长性能测定及屠宰采样,20周龄开始跟踪开产日龄和蛋重。结果表明:1)随着饲粮代谢能和粗蛋白质水平的升高,育成期雪山鸡种母鸡末重和平均日增重显著升高(P<0.05),料重比显著下降(P<0.05)。饲粮代谢能与粗蛋白质水平对末重和平均日增重有显著互作效应(P<0.05)。2)中代谢能组和高代谢能组体斜长、龙骨长和屠宰率显著高于低代谢能组(P<0.05);高蛋白质组体斜长和龙骨长显著高于低蛋白质组(P<0.05),全净膛率显著高于中蛋白质组和低蛋白质组(P<0.05)。3)中代谢能组开产蛋重显著高于高代谢能组(P<0.05);高蛋白质组卵巢指数显著高于低蛋白质组和中蛋白质组(P<0.05)。4)中代谢能组和高蛋白质组盲肠厚壁菌门(Firmicutes)和乳杆菌属(Lactobacillus)相对丰度较高,盲肠变形菌门(Proteobacteria)相对丰度较低。综合考虑各项指标,推荐育成期雪山鸡种母鸡饲粮适宜代谢能水平为11.30 MJ/kg、粗蛋白质水平为15.50%。