刺芪参胶囊的制备工艺研究

目的:探索刺芪参胶囊的制备工艺。方法:采用正交实验,以总皂苷质量为指标,优化提取工艺;采用单因素实验优化制剂工艺。结果:在最佳提取工艺条件下,刺芪参胶囊提取物中的总皂苷含量为12.19 mg·g-1;以糊精作为填充剂、硬脂酸镁为助流剂、95%乙醇为黏合剂制备胶囊剂。结论:刺芪参胶囊的制备工艺稳定可行。     

Cloud-Based Multidimensional Parallel Dynamic Programming Algorithm for a Cascade Hydropower System

The joint optimal operation of cascade reservoir system can greatly improve the utilization of water resources. However, the complex high-dimensional and non-linear features and calculated costs often hinder the refined operation and management of reservoirs. Recently, the local parallel computing has become an effective way to alleviate the "curse of dimensionality". Current local parallel computing has hardware limitations, which is difficult to adapt to large-scale computing. This study proposes a novel parallel dynamic programming algorithm based on Spark (PDPoS) via cloud computing. The simulation experiments are carried out for a comparative analysis of the solution efficiency, influence factors and stability of cloud computing. The results are as follows: (1) The efficiency of the cloud-based PDPoS is related to some factors; the number of CPU cores is the main influencing factor, followed by the operator, and the architecture has the least influence. (2) The runtime variance of cloud computing is 2.03, indicating cloud computing has high stability. (3) Under the same configuration (i.e., CPU and memory), the runtime of cloud computing is 41.5%?~?110.3% longer than that of physical machines. However, cloud computing has rich resources, good scalability, and good portability of online operations, which is an attractive alternative for optimal operation of large-scale reservoir system.

     

智慧专业化视角下区域资源集聚与区域创新驱动发展

传统发展动力逐渐式微，创新驱动成为区域经济发展的新引擎。走创新驱动发展道路，需要新的经济理论解释、构建并指导各区域经济增长方式和发展模式转型。智慧专业化是一种新兴经济理论，能够较好解释区域创新驱动发展的内在动力。智慧专业化有效支撑区域资源集聚与区域创新驱动发展相关性研究，从资源内存性和外向性、资源技术和经济属性以及资源支持程度3个方面，论述区域创新驱动发展的动力来源与动力持续性，进而解释区域创新驱动发展资源集聚对区域创新驱动发展绩效的影响。     

国企民营化与企业创新效率：促进还是抑制?

文章基于混合所有制改革的背景，从创新效率的视角考察了微观创新主体民营化前后创新行为的变化。研究发现，民营化抑制了企业的创新效率，企业的专利数量显著减少，这种影响在缺乏原国有大股东制衡、无系族的上市公司以及外部产权保护较弱的地区更加显著，而且相对于创业型企业，民营化企业的创新效率更低。进一步研究发现，民营化抑制企业创新效率的一个重要途径是关联交易显著增加、投资显著减少，民营化后非国有大股东更多地表现出掏空动机，减少了创新活动，降低了创新效率。文章的研究结论为理解民营化企业的效率提供了新视角，有助于我们正确认识和理解新兴转轨经济体的民营化行为，而且对于监管层如何推进混合所有制改革具有重要的政策启示。     

Industry competition in China: an external governance mechanism or an external incentive

We focus on the impact of industry competition on earnings management in listed companies in China. Empirical analysis reveals the following: (1) When competition within an industry is relatively low, it lowers the extent of earnings management; (2) when competition is relatively high, earnings management is promoted.; (3) within an industry, the more intense the competition, the more companies manipulate earnings when in an inferior competitive position; and (4) state‐owned enterprises that are at a competitive disadvantage within an industry rely more on real earnings management strategies, whereas these effects are insignificant in private firms.     

房地产抵押品价值变动的实体经济效应

在我国较密集的房地产调控背景之下,定量测算房地产抵押品价值变动对实体经济的影响幅度具有重要意义.文章采用前沿方法深入考察了房地产抵押品价值变动对公司投融资决策的影响,并在此基础上对房价调控政策对社会总投资的潜在影响进行了估算.研究发现:(1)我国存在显著的抵押品效应,公司房地产抵押品价值每上升1元,资本支出随之增加约5.7分;无论是控制公司固定效应,还是使用替代指标或子样本分析,抵押品效应均稳健成立.(2)宏观层面上,房地产抵押品价值1％的上升将引起总投资增加约466.3亿元.(3)对资金来源的探究显示,抵押品升值提高了公司的贷款获得,尤其是短期贷款的获得.(4)抵押品效应与公司的融资约束正相关,但与所在地区金融市场化水平无明显关系.基于研究结论,建议政府在进行调控时不宜对房价过度打压,而应引导房价保持与居民消费价格相当的增长速度,减少房价过度波动,维持房地产市场长期平稳健康发展.     

2014年大陆桥运输情况分析

2014年,世界经济尤其是欧盟们经济持续低迷、我国国内经济发展增速放缓已处于"新常态"发展。大陆桥国际运输较往年呈现出一派欣欣向荣的景象,虽然国际过境运输量有所下滑,但整体情况尤其是中欧班列发展迅猛。这主要得益于我国以及亚欧国家对丝绸之路经济带建设的重视和积极参与。2014年,世界经济尤其是欧盟们经济持续低迷、我国国内经济发展增速放缓已处于"新常态"发展。因此,2014年我国交通运输经济运行虽然总体发展平稳,但增速趋稳。港口生产有所放     

高端创新:现实背景及理论阐释

从百大研发创新奖的发展可看出,高端创新正呈现一些新特点、新趋势。高端创新是在原有创新理论集成的基础上,结合创新发展实践,对创新驱动发展内涵的一种新论述。高端创新源于"知识和技术"的突破式发明、"市场-技术互动"的宏观发明和"市场附加值"的高端颠覆式创新。高端创新推动技术向更高势能发展,推动市场向更高层次演变,进而形成企业、产业和国家竞争优势。     

Apparel Retail Sales Value + 41.9% m/m of Shanghai in Dec.

According to Shanghai Apparel Association,apparel retail sales volume in Shanghai top 10 department stores was 1.076 million pieces(sets),increasing 40.2% m/m(up 18.1%y/y) by 309,000 pieces(sets).In Dec.apparel products sales value was CNY580 million,increasing 41.9% m/m(up 10.2% y/y) by CNY170million.Average price in Dec.was CNY542.7/piece(set),up 1.2% m/m,down 6.6% y/y.