创新网络与企业技术创新动态能力协同演进研究——基于系统动力学的分析_*

本研究利用系统动力学方法,从知识流动的角度描述、量化、模拟企业创新网络与企业技术创新动态能力协同演进的过程。模型分析结果表明当前企业创新绩效取决于技术创新动态能力与创新网络协同演进路径：技术创新动态能力→创新网络构建与演化→外部知识内化→创新绩效→技术创新动态能力。在协同演进的过程中随着企业技术创新的发展,在创新绩效驱动三要素中,动态能力以及创新网络知识内化对创新绩效提升具有边际递增的效应,同时创新战略、产业政策平台和管理平台对企业技术创新都存在显著影响,但这种影响作用存在较大差异。     

基于油气藏渗流力学课程的创新创业深度研究融合

"油气藏渗流力学"作为石油工程专业主干课程,在日常教学中,多为理论知识教学,缺少实践教学活动。本文通过问卷调查,得出创新创业教育实际情况的相关数据。根据实际情况,以创新创业为方向,将其思想与内涵同"油气藏渗流力学"的教学计划及活动相结合。从课上到课下,从学校到学生,全方位、深层次、多方向地提出了模块教学、合理规划科技创新竞赛及跨专业联合教学模式三种教学改革方式。     

Exploring CO2 mitigation pathway of local industries using a regional-based system dynamics model

Low-carbon development based on low energy consumption, low pollution and low emissions has become an important strategic choice for worldwide governments to achieve sustainable development. In order to support smart government in decision making, information systems have been developed to monitor and predict CO₂ emissions. Most of the existing studies investigate CO₂ emission amounts, identify influencing factors of CO₂ emission and discuss potential suggestions to mitigate CO₂ emission for different industries. They often focus on CO₂ emission research of industries in a region or country, while the integration of carbon flow in the neighboring regions is not well studied. Therefore, this paper proposes a system dynamics model to explore an optimal carbon emission reduction path of a regional industry by integrating regional differences, i.e., industrial comparative advantages, technology advantages and the inter-regional context between the neighboring regions. In the case study, we use a key industry in a typical industrial region of Western China, the cement industry in Chongqing, as a scenario to simulate the CO₂ emission, possible energy demand and cement production of the cement industry in this region for recent years. Simulation results show that by leveraging the regional differences, especially the collaboration of the industrial chain and production capacity among regions, the cement industry in Chongqing can achieve the low-carbon target. In addition, through the analysis and discussions about the features of our model and Chongqing’s cement industry, it reflects that our model using regional differences is applicable to industries with a common demand market at the regional level such as energy, chemical and steel industries.     

战略联盟演化过程中的组织间学习特征研究

战略联盟中的组织间学习是一个复杂的动态过程,有效地管理联盟,实现组织间学习已成为企业重要的战略资产。在动态环境下,将学习的变革过程和联盟演化过程相结合的理论研究可以指导管理者更有效地管理联盟。本文通过总结联盟演化过程和组织学习的相关文献,从动态视角分析在联盟生命周期的不同阶段的组织间学习特征。在对联盟中组织间学习界定的基础上,归纳企业在加入联盟后不同阶段的学习特点,为我国企业联盟管理研究提供借鉴。     

“海岸动力地貌”课程中的互动式教学和人文教育

针对本科生对＂海岸动力地貌＂课程的背景了解少,而且普遍对专业课兴趣差的现象,我们根据教育学原理,并结合本科生的心理特点,将互动式教学引入该课程的课堂教学和实习,并注入人文教育,取得了良好的教学效果。     

在“流体力学”教学中如何合理使用多媒体

分析了＂流体力学＂课程采用多媒体教学中,存在的对教材内容分析和研究深度不足、课件制作质量差等问题。提出了合理利用教学资源,精心制作和不断完善多媒体课件;明确采用多媒体教学的目的,优化设计教学内容等改善措施。     

Computational fluid dynamics simulation of formaldehyde emission characteristics and its experimental validation in environment chamber

We investigated the effect of supply air rate and temperature on formaldehyde emission characteristics in an environment chamber. A three-dimensional computational fluid dynamics （CFD） chamber model for simulating formaldehyde emission in twelve different cases was developed for obtaining formaldehyde concentration by the area-weighted average method. Laboratory experiments were conducted in an environment chamber to validate the simulation results of twelve different cases and the formaldehyde concentration was measured by continuous sampling. The results show that there was good agreement between the model prediction and the experimental values within 4.3% difference for each case. The CFD simulation results varied in the range from 0.21 mg/m3 to 0.94 mg/m3, and the measuring results in the range from 0.17 mg/m3 to 0.87 mg/m3. The variation trend of formaldehyde concentration with supply air rate and temperature variation for CFD simulation and experiment measuring was consistent. With the existence of steady formaldehyde emission sources, formaldehyde concentration generally increased with the increase of temperature, and it decreased with the increase of air supply rate. We also provided some reasonable suggestions to reduce formaldehyde concentration and to improve indoor air quality for newly decorated rooms.     

流体力学北京市级实验教学示范中心建设

中国石油大学(北京)流体力学实验教学示范中心是北京市市级实验教学示范中心,经过多年的发展,中心已经成为开展科学研究的重要平台,成为培养石油专门人才的重要基地。现结合中国石油大学(北京)流体力学实验教学示范中心经验,本着"学生为本、强化基础、鼓励创新、结合专业、重视应用"的教育指导方针,从建设教学团队、改进实验教学方法、培养学生能力、促进科研与教学相结合等方面,探讨石油高校流体力学实验教学的建设。     

超临界CO2萃取白簕叶总黄酮工艺的研究

采用超临界CO2萃取白簕叶中的总黄酮化合物,通过单因素试验和正交试验,研究了超临界萃取条件（压力、温度、时间、CO2流量）对其总黄酮的影响.实验结果表明,最佳提取条件：萃取压力20 MPa,萃取温度35℃,萃取时间1 h,CO2流量20 L/h.白簕叶总黄酮提取值为2.929 mg/g.     

莫扎特钢琴奏鸣曲与贝多芬钢琴奏鸣曲的力度分析比较

莫扎特和贝多芬是维也纳古典主义风格时期的两位伟大音乐家,他们都创作出了大量优秀的音乐作品,在钢琴音乐创作领域,两位大师又创作了大量钢琴奏鸣曲。本论文主要从莫扎特钢琴奏鸣曲与贝多芬钢琴奏鸣曲的力度方面进行分析,具体从创作背景、作曲家创作风格、两位大师所使用的钢琴、力度演奏提示等方面进行研究,以便音乐爱好者、演奏者能够更好地理解和掌握莫扎特钢琴奏鸣曲与贝多芬钢琴奏鸣曲不同的演奏风格。