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New NSF and NBC Learn video series shows off big discoveries from tiny particles
New NSF NBC video series tiny particles
2016/2/22
Why are things so small, so significant? A new video series created by the National Science Foundation (NSF) and NBC Learn, the educational arm of NBCUniversal News, sheds light on this question....
NSF,NBC Learn and The Weather Channel showcase research to protect against nature's fury
NSF NBC Learn and The Weather Channel showcase research protect against nature's fury
2015/10/13
The National Science Foundation (NSF) Directorate for Geosciences, The Weather Channel and NBC Learn today released an original video series that explores the science of natural disasters to...
NBC and the 2012 London Olympics: Unexpected Success
Success Profit Sports Failure Television Entertainment Media and Broadcasting Industry
2015/4/27
"The 2010 Vancouver Winter Games lost $223 million, astonishing for a 17-day event. Next year's London Summer Games, which cost a record Olympic rights fee of $1.18 billion, are expected to lose at le...
通过对NBC系列CO2气保焊机电流检测、电流反馈电路的分析与改进,提高了原机的可靠性与性能,降低了生产成本,使焊机一致性大大提高,电流检测、反馈机制更加合理、可靠和完善。
NBC晚间新闻聚焦图书馆在经济紧缩期间的重要作用
NBC 图书馆 经济紧缩 重要作用
2008/12/19
The important role libraries are playing during tough economic times was the focus of an NBC Nightly News report recently.
NBC轿车转向节带制动器总成数字化设计系统技术
轿车 数字化设计 制动器
2008/11/3
该项目将产品反求、CAE、CAPP、CAM有机的结合起来,形成了一个完整的数字化设计系统。以误差流理论为基础,通过从系统的层面对制造过程中的产品质量问题进行分析和设计,研究过程中各误差源对产品质量的影响关系,并考虑了制造过程中过程参数与产品质量特性之间的相互影响,对两者进行集成优化,将产品的主要质量问题消除在设计阶段,使得工艺方案优化设计具有了更多的理论依据,并以此指导进行生产过程工装设备的调整,...
NBC全国广播公司(图)
NBC全国广播公司
2008/1/15
One of the most honored news organizations online, MSNBC.com is a leader in breaking news and original journalism. MSNBC.com reaches more people than any of the national daily newspapers.
高温度梯度定向凝固下Ni-NbC合金的组织演化
Ni-NbC合金 定向凝固 界面形态 规则共晶
2013/10/9
在温度梯度300K/cm和定向凝固速率5-20μm/s下,Ni-10.6wt%NbC合金以平界面方式凝固,当凝固速率达到50μm/s时,合金凝固组织中出现共晶胞状组织。随定向凝固速率的增大,三叶状和点状形态的NbC相向条状NbC相过渡。当定向凝固速率从2μm/s跃迁变化到10μm/s时,Ni-10.6wt%NbC合金凝固组织仍然以规则共晶生长;而跃迁变化到50和100μm/s时,出现起伏较大的共晶...
GE Appoints Jeff Zucker as President and CEO of NBC Universal; Bob Wright to Serve as GE Vice Chairman
broadcasting
2007/2/9
Synthesis, Structure, and Properties of NbC Nanorods and Nanoparticles
Synthesis, Structure, and Properties NbC Nanorods and Nanoparticles
2009/12/28
Synthesis, Structure, and Properties of NbC Nanorods and Nanoparticles.