设备基础大体积混凝土施工及裂纹控制

在大庆200MW火电厂锅炉等设备基础的大体积混凝土施工过程中，通过严格执行模板设置、混凝土的搅拌、输送、振捣、养护等工艺规范，采取定时定位监测凝结水化热的温度等工艺措施，有效地控制了大体积混凝土浇筑后可能产生的裂纹。     

电阻器的选用对仪器仪表电路温度漂移的影响

首先对仪器仪表电路中常用电阻器和电位器的技术性能作了较详细的介绍,然后结合电路设计实际提出了选用要点和测试方法.     

用于X光动态形貌实验的高温样品室及其温度控制系统

为进行动态形貌实验研究，在北京同步辐射装置形貌学实验站建立了高低温样品环境室，用英国欧陆控制器组成温度控制系统，用ＰＩＤ控制和时间比例法进行温度控制，系统温度分辨率在０．０５℃。     

秦山核电站考验元件辐照后燃料的晶粒长大及温度分布

文章介绍了秦山核电站考验元件辐照后燃料ＵＯ２的微观分析结果。用定量金相方法，结合晶粒长大动力学原理，计算出元件的中心温度，结果与ＦＲＡＰ－ＣＯＮ程序分析相符，以辐照后检验结果为基础，确定了评价国产燃料ＵＯ２辐照行为的参数Ｋ和Ｑ值。     

铀氢锆堆栅距对堆芯物理性能的影响

使用铀氢锆堆（即脉冲堆）物理计算程序包ＰＲＰ－Ｓ，首先计算了栅距对有效增因子的影响，栅距与堆芯温度系数的关系，然后计算了中国核动力研究设计院设计建造的我国第一座铀氢锆反应堆的冷却温度系数，燃料温度系数和等温度系数，并且与实验值进行了比较，结果表明两者的符合得相当好。     

焦炭反应性试验影响因素分析

针对梅山自产焦炭，利用梅山焦炭反应性试验设备，通过改变焦炭块数、CO2流量和温度等控制参数，讨论了这些参数对焦炭反应性和反应后强度检测值的影响，以及保证测定可靠性应采取的控制措施。     

热卷箱在梅钢热轧生产中的应用

介绍了梅钢热卷箱的设备组成、技术参数、工作原理及应用效果。热卷箱技术的合理使用，对减小中间坯温降，提高轧制稳定性，节约能源，改善带钢力学性能均匀性，拓展产品规格，提升产品质量，降低生产成本等起到了积极作用。     

Bar diameter as an influencing factor on temperature in turning

Factors such as cutting speed, feed rate, tool material, etc., are well known to have an effect on tool wear in metal turning. However, reliable methods of wear prediction over a broad spectrum of cutting circumstance remain elusive, suggesting that not all factors have been recognised as significant and thus considered. This paper demonstrates that one such factor is bar diameter. The findings are analysed in three separate ways. All tests were performed under identical cutting conditions, i.e. cutting speeds were constant as well as the feed rate and depth of cut, also the same bar was used except for varying the bar diameter. All experiments were performed in single point turning on solid carbon steel bar (BS970 080A42), by using uncoated ISO (4957) (BS 4659 BT42) HSS insert.     

微波热疗天线在生物组织中温度分布的模拟

模拟微波肿瘤热疗条件下生物组织中的温度分布,对临床治疗中微波热疗天线的设计、选择及治疗方案的确定具有重要意义.本文结合电磁场的时域有限差分(FDTD)和温度场的有限差分方法模拟了微波热疗天线在生物组织中产生的温度分布.通过单极子天线对等效组织模型的加热温度模拟结果与实验测量结果比较,对微波热疗天线在生物组织中产生的温度场模拟程序进行了验证.     

Analysis of the inverse identification of constitutive equations applied in orthogonal cutting process

Flow stress identification of work-piece materials for its use in machining operation simulation models has been long treated. The interest in defining the flow stress in an easy and fast way without using complicated dynamic characterization tests leads to analyse the inverse identification of flow stress employing cutting operations. This paper presents a revision of different aspects concerning the inverse algorithms applied to the primary shear zone (PSZ). It also presents a new approach for studying material's behaviour on the secondary shear zone (SSZ) where experimentally measured temperatures have been included in the inverse algorithm. Two steels, 42CrMo4 and 20NiCrMo5 are employed and finite element method (FEM) simulations are carried out in order to evaluate the usefulness of the calculated flow stress laws and proposed algorithm.