摘要：The operation variables,including feed rate of ore slurry,caustic solution and live steams in the double-stream alumina digestion process,determine the product quality,process costs and the environment ***,they were set by the technical workers according to the offline analysis results and an empirical formula,which leads to unstable process indices and high consumption ***,a multi-objective optimization model is built to maintain the balance between resource consumptions and process indices by taking technical indices and energy efficiency as objectives,where the key technical indices are predicted based on the digestion kinetics of diaspore.A multi-objective state transition algorithm(MOSTA)is improved to solve the problem,in which a self-adaptive strategy is applied to dynamically adjust the operator factors of the MOSTA and dynamic infeasible threshold is used to handle constraints to enhance searching efficiency and ability of the *** a rule based strategy is designed to make the final decision from the Pareto *** method is integrated into an optimal control system for the industrial digestion process and tested in the actual *** show that the proposed method can achieve the technical target while reducing the energy consumption.

摘要：In order to realize the efficiency, reliability and safety tests on the complex cable network of an electronic system, an efficient cable network resistance tester is designed. Firstly, the design background and hardware structure are briefly described. Then aiming at the multi task parallelism considering real time measurement of parameters and real time control of the system in the tester testing, a real time muhi task control software is developed by using multi thread testing technology in parallel test to realize multi task complex control. Finally, the least squares method is used to improve the test accuracyof the tester. The test results show that the test error is basically within 0.3%, and the test speed can reach 345 point/min.

摘要：离子浓差极化(ion concentration polarization,ICP)现象是在外加电场作用下发生在微纳交界面处的一种电富集现象,将ICP现象与微流控分析技术相结合,可广泛应用于生化分析中带电粒子预富集、目标物分离、靶标物检测等领域。本文首先对ICP原理及微流控ICP芯片进行了简要介绍,梳理总结了ICP芯片的制备技术和方法,其中重点关注了微流道结构设计、纳米结构制备与设计等方面的研究现状与进展。首先对基础单通道ICP芯片的结构进行分析,进而对并行通道ICP芯片结构以及集成多功能的微流控ICP芯片进行了总结和讨论,列举了ICP芯片中纳米结构的制备方法及其优缺点。进而,讨论了优化ICP芯片的富集效能途径,可通过引入多场耦合、阀门控制等多种手段,实现对靶标物的富集效能优化。最后,针对ICP芯片在多种带电生化样本分析检测中的应用进行综述,指出ICP芯片在匹配检测目标生物特性方面面临挑战,需要提高富集效率和选择性,解决流体控制、混合及传输问题。可以看到,微流控ICP芯片具有处理样本流量低、分离富集效果好、检测效率高以及易于集成化和小型化等优势,在生化检测领域展示出很好的研究意义和实用前景。

摘要：目的应用正交设计试验设计,结合层次分析法(AHP)-熵权法优化新蒲饮的提取工艺。方法以小檗碱、菊苣酸、连翘苷、苷草苷及干浸膏为关键质量属性,以加水量、提取时间、提取次数为关键工艺参数,采用正交试验设计优化工艺参数。采用AHP-熵权法确定各评价指标的综合权重系数,进行综合评分。结果正交试验设计采用AHP-熵权法建立的工艺评价函数模型:综合评分=C_(ij)小檗碱×70%+C_(ij)菊苣酸×21%+C_(ij)连翘苷×5%+C_(ij)苷草苷×2%+C_(ij)干浸膏×2%,该模型稳定可靠,确定提取工艺为全方饮片加20倍量水,浸泡45min,煎煮2次(第一次为总加水量倍数的60%,第二次为总加水倍数的40%),每次煎煮1.5h。验证试验结果表明,所测得的指标性成分的RSD值均小于3.0%,符合要求,且方法具有适用性。结论筛选的新蒲饮现代提取工艺参数具有可行性,可为新蒲饮后续的开发利用提供理论依据。

摘要：雄安新区窄路密网的新型城市道路布局理念、错综复杂的地下空间、全生命周期智能建造体系等特点显著增加了综合管廊的设计难度。以雄东片区综合管廊工程为例,探讨了窄路密网条件下大、小市政管线衔接方案,提出以支管廊出线为主,局部采用管线分支口直埋出线的解决方案;管廊穿越复杂地下空间处,结合两者建设时序选用合理的建设模式;以入廊给水管道为例,研究BIM建模要点,满足新区数据交付标准。

摘要：An intelligent line-tracking robot using the enhanced microprocessor STM32F103RBT6 as its core controller is introduced in this paper. The hardware configuration and line-tracking control principle of the system are described, and the black-white marked program design of the sensor is analyzed. Two motors are respectively driven by two H-bridge driving circuits, which are formed by four discrete components of metal oxide semiconductor （MOS） field effect transistor respectively. By altering values of voltage directions and pulse width modulation （PWM）, the walking direction and the speed of robot are adjusted, and the traditional PID control theory is adopted to adjust the robot during walking process. The results indicate that the design is scientific and reasonable, low cost, good adaptability and high applicability.

摘要：以结核分枝杆菌内容为例阐释课程思政在新医科背景下运用混合式教学模式进行“文化素养”“职业素养”“生命仁爱”“家国情怀”“政治认同”“苏区红医精神”人文思政元素的融入路径设计。设计中“医学+人文+思政”有机结合,既契合新医科内涵,又用中国传统文化丰富了思政话语体系,并辅以苏区红医精神沁润,打造传授医学知识、解答医学疑惑的知识课堂;传播文化瑰宝、增强自信自强的文化礼堂;传承红色基因,赓续红色血脉的殿堂。

摘要：Katherine Mansfield is a world famous woman master of short stories in English literature. Her stories are sensitive revelations of human behaiour in quite ordinary situations, through which we can glimpse a powerful, and sometimes cruelly pessimistic view of life. A Dill Pickle is one of her short stories published in 1917, describing the encounter between a young woman and a young man who have been lovers six years ago and their lost love and changes over the years. Short as it is, it is really worth our earful analysis and appreciation. This paper will comment on this short story from the following two aspects： a commont on the theme of the story; a comment on the writing technique of the story. The paper conludes that romantic love is dependent upon circumstances and the convergence of certain character traits at a particular time.

摘要：随着新能源高渗透接入电网,新能源间歇性、随机性和波动性的特征,加剧了源荷的不平衡,降低了电网的可靠性。基于此,研发一套低碳综合能源系统需求响应试验平台,通过用户侧需求响应调整用电时段,缓解电网的功率波动。论文首先研究了低碳综合能源系统构建,接着分析了三种需求响应方案,进而设计了基于标准化页面的低碳综合能源系统需求响应实践平台,详细介绍了资源配置、执行启动、响应评价与数据分析等核心操作模块,该平台充分发掘新型电力系统负荷侧灵活性资源,可作电气教学和员工培训实验平台,支撑新型电力系统安全稳定运行。

摘要：随着国家产业结构的转型升级和重污染行业整治要求的不断提升,一些电镀、制铬等涉铬重污染企业纷纷停产关闭,场地中遗留的铬污染土壤急需修复治理。通过对铬污染土壤异位修复技术原理、工艺特点以及应用局限性进行梳理分析,为铬污染土壤的异位修复技术筛选提供依据;同时,在粉尘、烟气、水处理等方面提出相应的二次污染控制措施,明确工艺设计要点和工艺参数,为铬污染土壤异位修复技术的工程化应用提供参考。