Research on the Clinical Pathway PDCA Continuous Improvement System Based on the Theory of Feedback Closed-loop Control System

运用控制论方法，将控制理论领域反馈的闭环控制法、管理学的PDCA循环等方法运用于信息系统的整合建设，建立电子病历一电子医嘱一临床路径一医院管理信息系统的“全闭环”临床路径执行和反馈体系，建立了疾病诊疗规范制定、临床操作服务、过程质量监管三位一体的医疗服务安全质量监测与持续改进闭环体系，临床路径信息管理平台对加强医疗服务安全动态监管，促进科学化、精细化、专业化管理，改善服务水平，提高效率具有不可或缺的重要作用。With the method of control theory, the feedback closed loop control method in the field of control theory, PDCA circulation of management and other methods are applied to the integrative construction of information system. The ＂closed loop＂ clinical pathway implementation and feedback system of electronic medical records-electronic medical advice-clinical pathway- hospital management information system is established. The medical service safety quality monitoring and continuous improvement closed-loop system integrating disease diagnosis and treatment specification formulation, clinical operation service and process quality supervision is set up. The clinical path information management platform has an indispensable important role on strengthening the dynamic supervision of medical service security, promoting scientific, refined and professional management, and improving the service level and eficiency.国家自然科学基金面上项目一大数据驱动的抗菌药物使用与管理决策优化研究（编号：71672160

Dam break simulation employing particle methods

溃坝问题包括水体自由表面变形、翻卷、破碎、复杂的紊流和漩涡,涉及非线性复杂水动力学问题,含有丰富而复杂的流动机理。本文改进了传统的物质点方法,将物质点法从模拟固体问题拓展到了流体问题。采用改进的光滑粒子流体动力学和物质点方法,对两种长宽比的水坝坍塌过程进行了数值模拟,得到了波浪前沿及自由表面顶面随时间的演化过程。计算结果表明,两种粒子方法模拟的水体发展过程与实验结果吻合较好,较VOF更接近实验值。对涌波与竖直壁面的作用进行了计算,结果表明,SPH方法与其它方法相比能更好地捕捉水腔形态。最后分析了两种粒子方法在处理流体大变形问题时的特点以及计算的准确性和精度

Microthermokinetic study of xanthate adsorption on impurity-doped galena

采用沉淀法合成6种不同掺杂方铅矿,并通过浮选实验考察杂质对方铅矿浮选性能的影响;采用微量热法测量含不同杂质原子的方铅矿表面吸附黄药的热力学和动力学参数;采用密度泛函理论对黄药分子在不同掺杂方铅矿表面的吸附构型和吸附能进行模拟计算。浮选实验结果表明：银、铋杂质能够显著提高方铅矿的回收率,而锌、锑、锰、铜杂质降低了方铅矿的浮选回收率。微量热动力学结果表明：含杂质方铅矿的吸附热与浮选回收率呈正比关系。黄药在含银和铋方铅矿表面的吸附热和反应速率常数均比纯方铅矿的大,对应的浮选回收率较高,而含铜和含锑方铅矿的吸附热和反应速率常数均比纯方铅矿的小,对应的浮选回收率较低。同时还分析了黄药在掺杂方铅矿表面的不饱和吸附热和黄药在杂质原子上的吸附能的关系。Six kinds of galena with different impurities were synthesized and the effects of impurities on the floatability of galena were investigated. The thermodynamic and kinetic parameters on the galena surface were measured using microcalorimetry, and the adsorption configuration and energy of butyl xanthate on the surfaces of galena with different impurities were simulated by density functional theory. Flotation experiments showed that Ag and Bi significantly promoted the recovery of galena, while Zn, Sb, Mn, and Cu reduced the recovery of the flotation. Microthermokinetic results indicated that the absolute value of xanthate adsorption heat was directly proportional to the flotation recovery of galena. Adsorption heat and reaction rate coefficients of xanthate on galena containing Ag or Bi were larger than those on pure galena, but smaller on galena containing Cu or Sb. Additionally, the relationship between the heat of unsaturated adsorption of xanthate and the adsorption energy of impurity atom on galena surface was investigated.Projects(51464006,51164001) supported by the National Natural Science Foundation of China;Project(GJR201147-12) supported by Guangxi Higher Education Institutes Talent Highland Innovation Team Scheme,China;Project(2012MDZD038) supported by the Key Scientific Research Project of Guangxi University for Nationalities,Chin