摘要：Advanced geological prediction is a crucial means to ensure safety and efficiency in tunnel ***,diff erent advanced geological forecasting methods have their own limitations,resulting in poor detection *** multiple methods to carry out a comprehensive evaluation can eff ectively improve the accuracy of advanced geological prediction *** this study,geological information is combined with the detection results of geophysical methods,including transient electromagnetic,induced polarization,and tunnel seismic prediction,to establish a comprehensive analysis method of adverse ***,the possible main adverse geological problems are determined according to the geological ***,various physical parameters of the rock mass in front of the tunnel face can then be derived on the basis of multisource geophysical ***,based on the analysis results of geological information,the multisource data fusion algorithm is used to determine the type,location,and scale of adverse *** advanced geological prediction results that can provide eff ective guidance for tunnel construction can then be obtained.

摘要：研究以北京常青园互联网金融产业园项目为例,分析了在含水量十分丰富的砂卵石层中,降水设计过程中参数选取、管井布置、水泵选用的影响,最终既达到满足结构施工的要求,又减少了对地下水的抽取。选取合适的涌水量计算公式,根据经验选择合适砂卵石层的渗透系数,计算涌水量,初步确定井径、井间距、水泵选配,抽水过程中通过观测水位,测量每天实际排水量,与计算涌水量比较,进而总结类似地区的降水设计参数,通过确定“最合适涌水量”使降水最终满足施工要求,防止过度抽采地下水,达到节约的效果。

摘要：有组织科研是知识生产模式变革的必然产物,是高校实现自身高质量发展并推动我经济社会发展的重要抓手。本文基于地方应用型本科院校的应用型定位,分析了其在地方经济社会发展中的内在价值,指出了地方应用型本科院校掣肘开展有组织科研中存在的发展基础薄弱、资源整合困难、发展动力不明、内部治理混乱和评价机制缺位等障碍,探索了地方应用型本科院校健全管理制度、加强顶层设计、组建科研团队、完善成果转化机制和改革评价机制的具体实施路径。

摘要：目的:优选建昌帮特色饮片酒柴胡的酒润麸炒炮制工艺,并建立其质量标准,为酒柴胡饮片的规范化生产提供参考依据。方法:基于炮制工艺黄酒用量、蜜麸用量、炒制温度与时间的单因素实验结果,结合星点设计与响应面分析法(BBDRSM)优化,综合评估各项指标,明确酒柴胡的最佳炮制工艺参数。按最佳工艺将15批柴胡片进行炮制,建立酒柴胡的质量标准草案。结果:酒柴胡的最佳炮制工艺为黄酒用量20%,蜜麸用量30%,炒制温度180℃,炒制时间5 min。最优工艺条件下的实验测定值与预测值相吻合,证明该炮制工艺稳定且可行。建立15批酒柴胡饮片质量标准,水分含量上限为4.0%,总灰分含量上限为6.0%,酸不溶性灰分的含量上限为2.0%,醇溶性浸出物的含量不少于7.0%,柴胡皂苷a与柴胡皂苷d的总含量至少要达到0.5%,为建昌帮酒柴胡质量控制提供方法和数据参考。结论:采用BBD-RSM法优选酒柴胡炮制工艺操作简便,重复性好,模型预测准确,具有较强的实用价值。另建立酒柴胡饮片的质量标准,为新版《江西省中药饮片炮制规范》的修订提供了草案。

摘要：An efficient chlorination roasting process for recovering zinc(Zn)and lead(Pb)from copper smelting slag was *** models were established,illustrating that Zn and Pb in copper smelting slag can be efficiently recycled during the chlorination roasting *** decreasing the partial pressure of the gaseous products,chlorination was *** Box−Behnken design was applied to assessing the interactive effects of the process variables and optimizing the chlorination roasting ***_(2) dosage and roasting temperature and time were used as variables,and metal recovery efficiencies were used as *** the roasting temperature was 1172℃ with a CaCl_(2) addition amount of 30 wt.%and a roasting time of 100 min,the predicted optimal recovery efficiencies of Zn and Pb were 87.85%and 99.26%,respectively,and the results were validated by experiments under the same *** residual Zn-and Pb-containing phases in the roasting slags were ZnFe_(2)O_(4),Zn_(2)SiO_(4),and PbS.

摘要：微博空间内充斥着大量广告信息,这些广告信息对舆情分析造成了极不利的影响.分析广告型微博特点,提出了一种广告型微博识别方法:在传统文本特征的基础上,引入"非活跃期微博数"、"微博重复度"、"特征词对权重"三类特征,并结合支持向量机模型对微博文本进行分类,识别广告微博发布者;分析广告微博发布者与普通用户的差异,提取广告微博发布者的"主题"特征,并面向用户对微博文本进行过滤,实现对广告型微博的识别.实验结果正确率为87.6%,召回率为97.2%,F值为91.6%,证明该方法能高效准确地识别广告型微博.

摘要：为探究动载作用下天然板岩的断裂韧度,论文采用板岩制作直切槽半圆盘弯曲试样(NSCB),利用直径50 mm分离式霍普金森压杆(SHPB)试验系统进行了动态冲击试验,同时使用高速摄像机记录了其裂纹扩展过程,研究了不同冲击气压和预制裂纹长度下板岩的动态断裂韧度及裂纹扩展速度。结果表明:试件的动态断裂韧度与冲击气压和加载率呈现正相关,而随着预制裂纹长度的增加动态断裂韧度先增加后减小,根据拟合结果,当预制裂纹长度为7.45 mm时试件的动态断裂韧度达到最大值,0.2、0.3和0.4 MPa三种冲击气压下对应的动态断裂韧度最大值分别为2.99、3.57和4.14 GPa·m^(1/2);试件的破坏过程可以分为动态损伤、裂纹孕育、裂纹形成、裂纹扩展和试件断裂五个阶段;试件主裂纹的扩展速度波动较大,而预制裂纹长度对试件裂纹扩展速度的影响较小。研究揭示了不同工况下板岩试件动态断裂行为的差异,对该类岩性地下工程支护、爆破参数设计具有一定的参考意义。

摘要：结合重力和螺旋管离心力分离的特点,提出一种螺旋管复合气液分离器结构。基于重力作用下气液分离的边界条件,给出了分离器直径、高度的设计方法;基于螺旋管离心力作用下气液分离的边界条件,给出了分离器螺旋管截面直径、螺旋管圈数的设计方法。总结人工控制经验,设计了分离器液位Fuzzy-PID控制器。实验表明,气液分离效果良好,分离流量是同尺寸重力分离器的2.5倍。

摘要：针对民航服务流程冗杂、体验不佳的问题,围绕值机体验,提出一种多模态人机数据驱动的服务设计方法。基于实地调研对民航体验的全流程进行了初探,对值机体验的起止节点进行了界定,对相关服务触点进行了梳理。依据服务触点设计脚本任务,组织实施人机交互实验,提出基于多模态人机数据的服务设计层次分析框架及评判体系。在脚本任务层,构建“眼动—心率变异性—行为”数据的综合评估模型,以快速判断设计的合理性。在触点层,进一步整合分析相关人机数据,挖掘用户需求,识别待改进的服务触点,进行精细化设计。以南京禄口机场为对象进行了实例研究,结果表明该方法可有效应用于民航值机体验服务的设计优化。

摘要：The driving force for using powder metallurgy(PM)mostly relies on its near net-shape ability and cost-performance *** automotive application is a main market of PM industry,requiring parts with competitive mechanical or functional performance in a mass production *** the automobile technology transforms from traditional internal combustion engine vehicles to new energy vehicles,PM technology is undergoing significant changes in manufacturing and materials *** review outlines the challenges and opportunities generated by the changes in the automotive technology for ***-cost,high-performance and light-weight are critical aspects for future PM materials ***,the studies on PM lean-alloyed steel,aluminum alloys,and titanium alloy materials were *** addition,PM soft magnetic composite applied to new energy vehicles was *** new opportunities for advanced processing,such as metal injection molding(MIM)and additive manufacturing(AM),in automotive industry were *** general,the change in automotive industry raises sufficient development space for ***,emerging technologies require more preeminent PM ***-based parts are still the main PM products due to their mechanical performance and low *** will occupy the growing market of highly flexible and complex *** opens a door for fast prototyping,great flexibility and customizing at low cost,driving weight and assembling reduction.