摘要：The seismic design and analysis of nuclear power plant (NPP) begin with the seismic hazard assessment and design ground motion development for the site. The following steps are needed for the seismic hazard assessment and design ground motion development:a. the development of regional seismo-tectonic model with seismic source areas within 500 km radius centered to the site;b. the development of strong motion prediction equations; c. logic three development for taking into account uncertainties and seismic hazard quantification;d. the development of uniform hazard response spectra for ground motion at the site;e. simulation of acceleration time histories compatible with uniform hazard response spectra. The following phase two in seismic design of NPP structures is the analysis of structural response for the design ground motion. This second phase of the process consists of the following steps:a. development of structural models of the plant buildings;b. development of the soil model underneath the plant buildings for soilstructure interaction response analysis;c. determination of instructure response spectra for the plant buildings for the equipment response analysis. In the third phase of the seismic design and analysis the equipment is analyzed on the basis of in-structure response spectra. For this purpose the structural models of the mechanical components and piping in the plant are set up. In large 3D-structural models used today the heaviest equipment of the primary coolant circuit is included in the structural model of the reactor building. In the fourth phase the electrical equipment and automation and control equipment are seismically qualified with the aid of the in-structure spectra developed in the phase two using large three-axial shaking tables. For this purpose the smoothed envelope spectra for calculated in-structure spectra are constructed and acceleration time is fitted to these smoothed envelope spectra.

摘要：溶解浆的生产过去以亚硫酸盐法蒸煮为主,由于环境的原因,亚硫酸盐法蒸煮已较少采用,而采用预水解硫酸盐法蒸煮。开始只采用间歇蒸煮技术,但由于溶解浆的需求不断增加,开发了基于预水解硫酸盐法蒸煮的连续蒸煮技术。这一新的解决方案已经通过广泛的实验室实验,随后在最初设计生产漂白硫酸盐商品浆的浆厂应用。新设计的工艺和设备已经解决了先前尝试在溶解浆生产中采用连续蒸煮技术遇到的负面问题。新建和现有的浆厂可以从该新工艺解决方案中受益,这也使得溶解浆与造纸用浆可共用同一制浆生产线。

摘要：亚历山德拉码头于1899年建成,曾是蒙特利尔港口最繁忙的粮食出口中心之一,其历史承载着城市繁荣的记忆。随着时间的推移,这里的许多重要基础设施开始逐渐老化,难以满足城市日益增长的旅游产业的需求。在这样的背景下,2013年,Provencher_Roy建筑事务所在蒙特利尔港务局发起的设计竞赛中脱颖而出,承担起码头现代化改造的重任。新设计为游客提供了一个进入这座历史城市的新门户,也为当地居民打造一处放松休闲的新场所。

摘要：在芬兰的奥托昆普公司，称作“奥托吉尼斯粉碎”的自磨的改进过程是颠倒的。最初，一些冶金工作者在该公司选矿厂的工业回路中详细地进行了十年自磨研究和试验工作，在得到了最终的结论，并建立了半工业试验厂之后，现在的研究工作是建立一个特殊的实验室方法，来验证矿石自磨的适应性。

摘要：目前在波兰E lekrown ia Lagisza发电厂建造世界上第1座超临界蒸汽参数的循环流化床锅炉。该CFB锅炉的设计发电容量达460 MW,采用了西门子的本生垂直管(Benson Vertical)技术。该CFB锅炉预计在2006年投入运行。

摘要：运用黑液模型系统的实验设计(DOE)研究分析了黑液成分对有机硅消泡剂效果的影响。研究发现,树脂酸或木素的浓度变化对实验结果无任何影响,因此,将脂肪酸和中性成分列为主要影响因素。3种有机硅消泡剂的消泡性和持久性随脂肪酸含量的增加而降低。中性成分含量增加有助于提高消泡剂的性能。正如实验所预期的,每种消泡剂的性能变化曲线各不相同。