试井曲线计算机自动拟合算法及应用

利用最优化理论和算法系统研究了现代试井分析中的自动拟合方法。从最小二乘法基本原理出发,结合大余量算法和小余量算法,运用有限差分的求导方法来求解Hessian矩阵,来推导试井分析中曲线自动拟合的新算法。通过与GaussNewton方法的比较,得出本文提出的算法在计算时间上较长一些,但是在初始值的收敛域上有明显优势,是一种相对优化的试井拟合算法。     

自动控制理论课程的教学改革研究

根据高等学校自动化专业发展与教学改革的需要,针对当前教学计划对自动控制理论课程的要求,阐述了更新教育观念、转变课程体系、改进教学手段和教学方法等一系列的教改实践。     

面向计算机的现代汉语"名1+名2"结构类型研究

现代汉语“名1 名2”语符串如果能构成词组,对应着定中、联合、同位、主谓四种结构关系。从自然语言信息处理的角度对现代汉语“名1 名2”的四种结构关系逐一进行探讨,并廓清四者的不同之处,以便计算机对这几种结构类型进行自动识别。     

S模式前导脉冲检测方法

研究了A/CFruit强干扰环境下S模式前导脉冲增强检测技术。分析了前导脉冲检测的依据和作用,将前导脉冲检测分为初检、有效性确认和参考电平产生3个步骤。在初检中采用前沿检测法和脉冲匹配检测法获得脉冲位置,对脉冲位置作位置匹配以初步确认前导脉冲的出现,用S模式数据位特有的脉位调制进行有效性确认,统计4个子脉冲在2dB内电平最多的点作为参考电平输出。仿真实验验证了算法的有效性。     

Grammatical constructions in typical developing children: effects of explicit reinforcement, automatic reinforcement and parity

This study replicated and extended Wright (2006) and Whitehurst, Ironsmith, and Goldfein (1974) by examining whether preschool aged children would increase their use of passive grammatical voice rather than using the more age-appropriate active grammatical construction when the former was modeled by an adult. Results showed that 5 of the 6 participants began using the passive voice after this verbal behavior had been modeled. For 3 of the participants, this change was large. The change occurred even though the adult model explicitly rewarded the participant with praise and stickers for using the active voice, while providing no praise or stickers for using the passive form that was modeled. For 1 participant, the modeling procedure had no effect on use of the passive voice. These results indicate a strong automatic reinforcement effect of achieving parity with the grammatical structures used by adults, compared to the effects of explicit reinforcement by the adult. This might help to explain why children acquire grammatical structures prevalent in their language community apparently without explicit instruction.     

环境在线自动监测技术与仪器设备的发展动态

对空气和废气以及地表水和污水自动监测系统的构成和技术关键 以及在线自动分析仪的工作原理 发展现状和存在的问题进行了评述 重点讨论了SO_2、NOx、O_3 CO、PM_(10)、烟尘等空气或废气在线自动分析仪以及水质常规五参数 化学需氧量(COD)、高锰酸盐指数、总有机碳(TOC)、氨氮 总氮 磷酸盐、总磷和UV等水质在线自动分析仪。     

高职新生英语自主学习状况调查

针对非英语专业高职新生的英语自主学习情况,通过问卷调查和访谈对辽宁科技学院168名该类学生进行了调查。结果表明,学生英语自主学习能力普遍较低,建议改变学生的依赖心理和原有的思维模式,培养学生语言学习的融合性动机,加强元认知和认知策略培训并营造卓有实效的课内外交际环境,改善高职英语教学。     

Modelling academic entrepreneurial intention with Bayesian networks / Modelado de la intención emprendedora académica con redes bayesianas

Entrepreneurship serves as an engine for the economy and has sparked a great deal of scholarly interest since the Enlightenment. Today, universities play an essential role in knowledge transfer as drivers that promote this phenomenon. The objective of this study is to compare different theoretical models that seek to explain the variables involved in entrepreneurial intention among university faculty using an automatic structural learning method of Bayesian networks. The sample was comprised of 1,068 professors from Spanish public universities between the ages of 24 and 77 (M = 43.54, SD = 9.78). The results show that the variables that directly predict entrepreneurial intention are self-efficacy, desirability, attitude and social norm. These results are interesting for further exploring knowledge of the variables involved in the process of entrepreneurship at the university level and proposing systems to foster entrepreneurship.     

Sustainable food supply chains: the impact of automatic replenishment in grocery stores

The aim of this study is to empirically investigate the impact of automatic replenishment on food waste metrics in grocery stores. The work has been designed as a case study focusing on the replenishment process among various stores and a single warehouse. Food waste metrics of products ordered through an automatic replenishment program are compared against products ordered manually. Specifically we contrast food waste, remaining shelf life and availability at the stores for a variety of products with different shelf life. The study suggests that by utilising an automatic replenishment program the stores can reduce their level of food waste by up to 20% and their products have a longer remaining shelf life without compromising on-shelf availability. The study also indicates that the impact of the automatic replenishment program is dependent on the product’s shelf life. Those products with a shelf life of between 51 and 110 days experience the highest impact, while products with a shelf life below 30 days experience a low or even negative impact. The study extends the current understanding of automatic replenishment programs. The key point for practitioners is to apply appropriate replenishment programs according to the product characteristics and especially the shelf life.     

Great powers in global tax governance: a comparison of the US role in the CRS and BEPS

The G20 and the OECD recently claimed two successes in global tax governance: adopting automatic exchange of banking information in 2014, and the 2015 BEPS project on taxation of multinational companies. While the former signifies an essential step forward in reducing tax evasion, the BEPS outcomes were criticized for merely patching up flawed taxation principles based on the arms’-length standard. The emergence of global automatic exchange of information is often ascribed to the US who unilaterally enforced its own FATCA automatic information-exchange standard, while no comparable action happened during BEPS. This article investigates the US position on the BEPS outcomes and if a similar unilateral action would have led to more far-reaching cooperation concerning BEPS. By examining the distributional consequences of cooperation in both processes, we conclude that US power in tax governance in both issues is more limited than generally assumed and insufficient to explain global cooperation.