信息技术与大学物理实验课程整合的探索与实践

试验以教学设计理论为指导，应用现代教育技术，进行了信息技术与大学物理实验课程整合的教学设计，并用于实际教学，对于教学内容多与时数少的矛盾、有经验的实验教师少与学生人数多的矛盾以及其他有关教学难点作了初步的探讨。     

Evaluation of measurement uncertainty based on grey system theory for small samples from an unknown distribution

To evaluate measurement uncertainty for small sample size and measurement data from an unknown distribution, we propose a grey evaluation method of measurement uncertainty based on the grey relation coefficient. The uncertainty of measurement is analyzed using grey system theory, and the defects of the grey evaluation model of measurement uncertainty (GEMU) are studied. We then establish an improved grey evaluation model of measurement uncertainty (IGEMU). Simulations show that the precision of IGEMU is greater than that of GEMU, and that sample size has only a small effect on the precision of IGEVU. In particular, IGEMU is applied to evaluating measurement uncertainty for small sample size and measurement data from an unknown distribution. The measurement uncertainty of total profile deviation, which is measured by the CNC gear measuring center, can be evaluated by a combination of IGEMU and the Monte Carlo method.     

新形势下大学物理实验面临的问题与对策

文章简述了在扩招和大实验平台的新形势下大学物理实验所面临的资源、师资和管理等问题；探讨了多媒体预习、仿真和虚拟远程实验辅助及实验主持入负责等相应的对策。     

工作用辐射温度计测量结果的不确定度评定

本文参照常用测量不确定度评定方法及应用实例,依据JJC415-2001《工作用辐射温度计检定规程》和工作经验,对工作用辐射温度计测量结果的不确定度进行了评定。     

HSK热装工具系统的动力学模型及动态特性研究

HSK热装工具系统包括轴承、HSK主轴、热装刀柄和刀具等部件,并通过轴承—主轴结合部、主轴—刀柄结合部和刀柄—刀具结合部弹性连接而成。根据HSK热装工具系统的工作原理,将各部件简化为多段Timoshenko梁,结合部简化为弹簧—阻尼模型,以此建立HSK热装工具系统的动力学模型;使用耦合响应法,考虑结合部的动态参数,分析HSK热装工具系统的动态特性;进行HSK热装工具系统动态特性的实验研究,比较理论与实验模态,验证HSK热装工具系统动力学模型的准确性。     

我所自育甘蔗新品种介绍与系谱分析

本文通过对6个甘蔗新品种的介绍和对系谱进行分析,结果表明,6个甘蔗品种的细胞质源只有2个热带种为黑车里本(B.Cheribon)(8)占83.3%,克里斯他林那(Crystalina)(13)占16.7%.与我国以前自育的59个甘蔗良种的细胞质源有了新的突破,对甘蔗育种工作者来说是一个成功的突破,对扩大热带种细胞质源时,是否可以引入其他种或属的细胞质的探索和研究利用具有积极的意义.     

Fire and thermal properties of PA 66 resin treated with poly‐N‐aniline‐phenyl phosphamide as a flame retardant

In this study, a halogen‐free phosphorous‐nitrogen synergistic flame retardant, poly‐N‐aniline‐phenyl phosphamide (PDPPD), was synthesized. Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, and elemental analysis data confirmed the structure of PDPPD. The essential FR PA66 was polymerized with PA66 pre‐polymer and PDPPD pre‐polymer, prepared from PDPPD and adipic acid. The limit oxygen index and UL‐94 test results of FR PA66 reached 28% and V‐0, respectively, when the contents of PDPPD pre‐polymer were 4.5 wt%. The thermo‐gravimetric and differential scanning calorimetry results demonstrated that the initial decomposition temperature of FR PA66 was 43 °C lower than that of pristine PA66 from 385 to 342 °C; however, the peak decomposition temperature was 36 °C higher than that of pure PA66 from 437 to 473 °C, when the contents of PDPPD pre‐polymer reached 4.5 wt%. Flame retardant mechanism was studied by cone calorimeter testing and SEM‐EDX, confirming that the heat release rate (HRR), total heat release (THR), and total smoke product (TSP) decreased slightly, and PDPPD followed the gas phase flame retardant mechanism. Copyright © 2016 John Wiley & Sons, Ltd.     

国内外光伏发电投资环境的分析与比较

在日本福岛核电站事故、德瑞意永久弃核,全球气候不断恶化的背景下,发展可再生能源受到各国前所未有的重视。我国政府在国家能源安全中长期发展规划中,对发展可再生能源做了长远规划,特别是光伏发电应用领域。所以梳理未来（5-10）年国内外光伏发电领域投资的市场前景和支持该领域的政策、法规,能帮助投资者从宏观上决策是否机投资该领域,总结国内外在光伏发电应用领域的成功经验,能有效指导政府制定更加符合本国的能源发展政策,具有非常重要的现实意义。     

中国项目管理发展迈向新的里程——访第二届中国项目管理国际会议专家委员会主任徐伟宣

徐伟宣中国科学院科技政策与管理科学研究所学术委员会主任和研究员。中国优选法统筹法与经济数学研究会理事长。《项目管理技术》杂志的编委。