Predicting and recommending collaborations: An author-, institution-, and country-level analysis

This study examines collaboration dynamics with the goal to predict and recommend collaborations starting from the current topology. Author-, institution-, and country-level collaboration networks are constructed using a ten-year data set on library and information science publications. Different statistical approaches are applied to these collaboration networks. The study shows that, for the employed data set in particular, higher-level collaboration networks (i.e., country-level collaboration networks) tend to yield more accurate prediction outcomes than lower-level ones (i.e., institution- and author-level collaboration networks). Based on the recommended collaborations of the data set, this study finds that neighbor-information-based approaches are more clustered on a 2-D multidimensional scaling map than topology-based ones. Limitations of the applied approaches on sparse collaboration networks are also discussed.     

Dynamics of innovation in the use of water resources in emerging markets

The advancement of water sustainability and reliance highly depends on the implementation of innovative ideas. However, despite being a vital resource, the water sector still faces many challenges in innovations compared to other industries. This study investigated three different aspects of innovation activities in the water sector in Kazakhstan, which represents a typical developing country. First, the potential water-related issues calling for more innovation activities were investigated. Second, the trend of innovation activities over 30 years was investigated with the help of patents. Third, the disruptions rendered by COVID-19 to innovation activities in the water sector were investigated through a questionnaire survey. The analysis results showed that the total volume of contaminated wastewater generated in Kazakhstan has generally increased with time. The number of water enterprises, patented water-related innovations, and total general patents showed a strong association, with correlation values ranging from 0.66 to 0.99. In all firms, regardless of the scale investigated in this study, the availability of local expertise, the culture of local organizations toward innovation, and the country’s business environment are all considered to have a significant impact on water innovation processes.     

一种基于FPGA的硬件神经网络设计方法

在FPGA硬件神经网络设计中激活函数的实现和数据表示方式是两个难点。本文提出了用非线性函数和21位定点法相结合来实现激活函数的逼近算法,采用源码定点表示法实现数据的硬件表示,明显减少了FPGA的资源占用,降低了激活函数逼近算法的复杂性和实现难度,最后,给出实际FPGA硬件神经网络设计实例并进行了仿真验证。     

非线性编辑技术在大学生多媒体竞赛中的应用

非线性编辑技术作为影视后期合成技术,其应用已越来越广泛。在阐述非线性编辑技术的原理、特点、软件编辑系统及编辑过程的基础上,重点论述了非线性编辑技术在大学生多媒体竞赛中的系列应用。     

基于系统动力学的政府公共信息资源配置系统的模型研究

在对政府信息资源配置系统的复杂性及其复杂适应性特性和演化动力分析基础上,运行系统动力学的基本理论和方法,构建政府信息资源配置的系统动力学模型.系统模型模拟的结果表明,政府信息资源合理配置依赖用户信息能力的提高、政府干预力度的加强和信息政策法规的完善.对分析政府公共信息资源配置系统的演化规律和相关部门制定政策提供参考.     

以马克思普遍联系的观点看“汽车系统动力学”的教学

运用马克思普遍联系的观点结合“汽车系统动力学”课程教学的特点,提出了将马克思普遍联系的客观性、联系的普遍性、联系的条件性与“汽车系统动力学”的教学相结合的理念。将哲学原理对现实的指导意义,应用于“汽车系统动力学”课程教学实践中,按照理论和实践相统一的原则进行教学,使学生在发挥自身主观能动性的基础上掌握普遍联系的基本原理,使问题解决有效性、科学化,以此激发学生的参与感和积极性。     

Muscle properties and coordination during voluntary movement

The aims of this review were to provide some insight into the theoretical problems and questions associated with muscle coordination and control of movement, to consider some of the experimental findings on force-sharing among synergistic muscles, and to discuss some of the practical implications of force-sharing and movement control for optimal performance in sports. Theoretically, the distribution problem is introduced and the problems and difficulties of this approach in making quantitative predictions of force-sharing among muscles is discussed. Experimentally, the force-sharing research in the cat ankle extensor muscles is critically evaluated, and a complete force-sharing picture is given for the soleus and (medial) gastrocnemius for tasks covering a large range of speeds and intensities. In the application section, optimal performance criteria in jumping and cycling are considered. Furthermore, the plasticity of skeletal muscle properties is illustrated using examples from high-performance sports. The review ends with a summary of the topics discussed and suggestions for future research.     

战略地图视角下生物医药产业政策的协同作用机制研究 --基于系统动力学方法

政策间的有效协同有助于充分发挥产业政策体系对产业发展的促进作用。文章针对生物医药产业的特性,利用战略地图思维工具确定产业发展目标及战略实现的路径,为产业政策系统的逻辑划分提供依据;并结合系统动力学分析方法,明确政策子系统中各战略要素,对各子系统政策的协同作用机制进行系统分析。认为中国生物医药产业政策的制定与实施要始终依托于产业发展的目标与战略,政策间的综合作用与相互协调应受到监管者的足够重视。此外,应认识到只有产业自身的动力要素才能带动其发展的良性循环,政府过于直接的干预可能会带来长期的负面影响。     

初始脉冲下系统动力学延迟环节的响应表达式

给出了初始脉冲下系统动力学延迟环节的响应表达式,纠正了文[1,2]中的错误.     

技术创新与社会创新:社会发展的原动力

技术创新和社会创新是社会发展的两大动力。技术创新与社会创新协同作用推动着人类社会由前工业-工业到后工业社会的转型。当代中国的社会转型具有跨越发展、多种社会形态并存以及后发、叠加、渐进、自主等特质,在器物、制度和文化三个层面均面临着特有的难题,解决问题的对策还在于技术创新与社会创新的协同发展,尤其是要重视制度创新和文化创新建设。